Difference between revisions of "Domekt Komfovent C4 Plus Modbus Registers"
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[[Image:komfovent_200ve_wiring_diagram.png|300px|right]][[Image:komfovent_c4_plus_logic_board_front.jpg|300px|right]][[Image:komfovent_c4_plus_logic_board_back.jpg|300px|right]][[Image:komfovent_200_dissassembly_diagram.png|300px|right]]Domekt Komfovent C4 is a AHU (Air Handling Unit) for use in a balanced HVAC system. The C4 is an older standard use from approx. | [[Image:komfovent_200ve_wiring_diagram.png|300px|right]][[Image:komfovent_c4_plus_logic_board_front.jpg|300px|right]][[Image:komfovent_c4_plus_logic_board_back.jpg|300px|right]][[Image:komfovent_200_dissassembly_diagram.png|300px|right]]Domekt Komfovent C4 control board is a AHU (Air Handling Unit) for use in a balanced HVAC system. The C4 is an older standard use from approx. 2010 to 2016. | ||
If you have a unit without a control panel or want to interface the unit with an external automation. ex. Home Assistant, the following data will make that possible. | If you have a unit without a control panel or want to interface the unit with an external automation. ex. Home Assistant, the following data will make that possible. | ||
| Line 5: | Line 5: | ||
To make sure the unit works at all, jump the FC-wires together and the unit should start spinning at max. after three seconds. This confirms that the MCU works as expected. | To make sure the unit works at all, jump the FC-wires together and the unit should start spinning at max. after three seconds. This confirms that the MCU works as expected. | ||
* [[Media:Domekt_Vortvent-Komfovent-Modbus-registerlijst-C4-regeling-EN-2016.pdf|Domekt Komfovent C4 Modbus Register Document]] | * [[Media:Domekt_Vortvent-Komfovent-Modbus-registerlijst-C4-regeling-EN-2016.pdf|Domekt Komfovent C4 Modbus Register Document]] (PDF) | ||
* [[Media:Komfovent C4 Plus modbus description_senas.pdf|Domekt Komfovent C4 Plus Modbus Register Document]] | * [[Media:Komfovent C4 Plus modbus description_senas.pdf|Domekt Komfovent C4 Plus Modbus Register Document]] (PDF) | ||
* [[Media:Domekt_air_handling_c4_plus_install.pdf|Domekt Komfovent C4 (buttons) Installation and Operation Manual]] | * [[Media:Domekt_air_handling_c4_plus_install.pdf|Domekt Komfovent C4 (buttons) Installation and Operation Manual]] (PDF) | ||
* [[Media:DOMEKT_automatika_c4_c4_plus_EN.pdf|Domekt Komfovent C4 (buttons) and C4 Plus (LCD) Installation and Operation Manual]] | * [[Media:DOMEKT_automatika_c4_c4_plus_EN.pdf|Domekt Komfovent C4 (buttons) and C4 Plus (LCD) Installation and Operation Manual]] (PDF) | ||
== Tools == | == Tools == | ||
| Line 131: | Line 131: | ||
=== General === | === General === | ||
13 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | {| border="0" cellspacing="0" cellpadding="1" class="wikitable" | ||
| Line 140: | Line 142: | ||
| '''Description''' | | '''Description''' | ||
| '''Data values''' | | '''Data values''' | ||
| '''Default value''' | |||
|- | |- | ||
| | | 9999 | ||
| Read/write | | Read/write | ||
| Integer | | Integer | ||
| Line 147: | Line 150: | ||
| AHU start/stop control | | AHU start/stop control | ||
| 1-Start, 0-Stop | | 1-Start, 0-Stop | ||
| - | |||
|- | |- | ||
| 10000 | | 10000 | ||
| Line 153: | Line 157: | ||
| 0..1 | | 0..1 | ||
| Season (heating permitted or prohibited) | | Season (heating permitted or prohibited) | ||
| 1-Winter, 0-Summer ( | | 1-Winter, 0-Summer (heater off) | ||
| 1 | |||
|- | |- | ||
| 10001 | | 10001 | ||
| Line 161: | Line 166: | ||
| Alarm status (warnings) | | Alarm status (warnings) | ||
| 14-Service, 13-Heater off, 11-Rotor stop | | 14-Service, 13-Heater off, 11-Rotor stop | ||
| - | |||
|- | |- | ||
| 10002 | | 10002 | ||
| Line 166: | Line 172: | ||
| Binary | | Binary | ||
| 0x0..0xF [b3-b0, 0..1]<br>Ex. 0x01=>64=>00000001<br>b0=1, rotating heat exchanger | | 0x0..0xF [b3-b0, 0..1]<br>Ex. 0x01=>64=>00000001<br>b0=1, rotating heat exchanger | ||
| DIP switch status | | System configuration/DIP switch status | ||
| b0-Heat exchange type, <br>b1-Heater type, <br>b2-Fan type, <br>b3-OVR-mode<br>(1-On, 0-Off) | | b0-Heat exchange type (0-RECU/1-REGO), <br>b1-Heater type (0-Electric/1-Water), <br>b2-Fan type (0-AC/1-EC), <br>b3-OVR-mode (0-All fans/1-Exhaust fan stop)<br>(1-On, 0-Off) | ||
| - | |||
|- | |- | ||
| 10003 | | 10003 | ||
| Line 175: | Line 182: | ||
| Time, hhmm | | Time, hhmm | ||
| Ex. 8:05 => 0x0805, 18:30 => 0x121E (18=0x12, 30=0x1E) | | Ex. 8:05 => 0x0805, 18:30 => 0x121E (18=0x12, 30=0x1E) | ||
| - | |||
|- | |- | ||
| 10004 | | 10004 | ||
| Line 182: | Line 190: | ||
| Day of the week | | Day of the week | ||
| 1-Mon, 2-Tue, 3-Wed, 4-Thu, 5-Fri, 6-Sat, 7-Sun | | 1-Mon, 2-Tue, 3-Wed, 4-Thu, 5-Fri, 6-Sat, 7-Sun | ||
| - | |||
|- | |- | ||
| 10005 | | 10005 | ||
| Line 189: | Line 198: | ||
| Month-day date, mmdd | | Month-day date, mmdd | ||
| Ex. 9th May => 0x0509, 31th Sept => 0x091F (Sept=0x09, 31=0x1F) | | Ex. 9th May => 0x0509, 31th Sept => 0x091F (Sept=0x09, 31=0x1F) | ||
| - | |||
|- | |- | ||
| 10006 | | 10006 | ||
| Read/write | | Read/write | ||
| Integer | | Integer | ||
| | | 2010-2200 | ||
| Year date, yyyy | | Year date, yyyy | ||
| Ex. 2023 | | Ex. 2023 | ||
| - | |||
|- | |- | ||
| 10007 | | 10007 | ||
| Line 203: | Line 214: | ||
| Alarm status (stop flags) | | Alarm status (stop flags) | ||
| b1-Supply sensor B1, <br>b2-Heater overheating, <br>b3-Water temp. low, <br>b4-Rotor stop, <br>b5-Frost possibility, <br>b6-Air temp. high, <br>b7-Air temp. low <br>(1-Fault, 0-None) | | b1-Supply sensor B1, <br>b2-Heater overheating, <br>b3-Water temp. low, <br>b4-Rotor stop, <br>b5-Frost possibility, <br>b6-Air temp. high, <br>b7-Air temp. low <br>(1-Fault, 0-None) | ||
| - | |||
|- | |- | ||
| 10008 | | 10008 | ||
| Line 210: | Line 222: | ||
| Alarm status (stop code) | | Alarm status (stop code) | ||
| 3-Rotor stop, <br>4-Heater overheating, <br>9-Supply sensor B1, <br>19-Air temp. low, <br>20-Air temp. high, <br>27-Water temp. low, <br>28-Frost possibility | | 3-Rotor stop, <br>4-Heater overheating, <br>9-Supply sensor B1, <br>19-Air temp. low, <br>20-Air temp. high, <br>27-Water temp. low, <br>28-Frost possibility | ||
| - | |||
|- | |- | ||
| 10009 | | 10009 | ||
| Line 217: | Line 230: | ||
| Modbus ID, default 20 | | Modbus ID, default 20 | ||
| Ex. 20 | | Ex. 20 | ||
| 20 | |||
|- | |- | ||
| 10010 | | 10010 | ||
| Read/write | | Read/write | ||
| Integer | |||
| 0..1 | |||
| External heater control signal type | |||
| 0-0..12V analog voltage-type, <br>1-12V digital PWM-type <br>(always 0 if heater configured as water type) | |||
| - | | - | ||
|- | |- | ||
| 10011 | | 10011 | ||
| Line 231: | Line 246: | ||
| Unknown | | Unknown | ||
| | | | ||
| - | |||
|- | |- | ||
|} | |} | ||
=== Ventilation === | === Ventilation === | ||
14 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | {| border="0" cellspacing="0" cellpadding="1" class="wikitable" | ||
| Line 244: | Line 262: | ||
| '''Description''' | | '''Description''' | ||
| '''Data values''' | | '''Data values''' | ||
| '''Default value''' | |||
|- | |- | ||
| 10099 | | 10099 | ||
| Line 251: | Line 270: | ||
| Ventilation intensity level (manual mode) | | Ventilation intensity level (manual mode) | ||
| 1-Low fan speed (60VAC), <br>2-Normal fan speed (recommended) (150VAC), <br>3-High fan speed (230VAC) | | 1-Low fan speed (60VAC), <br>2-Normal fan speed (recommended) (150VAC), <br>3-High fan speed (230VAC) | ||
| 2 | |||
|- | |- | ||
| 10100 | | 10100 | ||
| Line 257: | Line 277: | ||
| 0..4 | | 0..4 | ||
| Ventilation intensity level current | | Ventilation intensity level current | ||
| 0-Standby, <br>1-Low fan speed, <br>2-Normal fan speed, <br>3-High fan speed, <br>4-Override mode | | 0-Standby, <br>1-Low fan speed, <br>2-Normal fan speed, <br>3-High fan speed, <br>4-Override mode (OVR-register enabled or FC-wiring closed) | ||
| - | |||
|- | |- | ||
| 10101 | | 10101 | ||
| Line 265: | Line 286: | ||
| Control mode (Auto/Manual) (no Comfort or Economy mode available) | | Control mode (Auto/Manual) (no Comfort or Economy mode available) | ||
| 0-Manual (preset fan speed), 1-Auto (schedule) | | 0-Manual (preset fan speed), 1-Auto (schedule) | ||
| 0 | |||
|- | |- | ||
| 10102 | | 10102 | ||
| Line 272: | Line 294: | ||
| Supply ventilation intensity level 1 (EC-type fan) | | Supply ventilation intensity level 1 (EC-type fan) | ||
| 20 to 100% (EC-fan only) | | 20 to 100% (EC-fan only) | ||
| - | |||
|- | |- | ||
| 10103 | | 10103 | ||
| Line 279: | Line 302: | ||
| Supply ventilation intensity level 2 (EC-type fan / AC-type fan) | | Supply ventilation intensity level 2 (EC-type fan / AC-type fan) | ||
| 20 to 100% (EC-fan), 0 to 2 (AC-fan) | | 20 to 100% (EC-fan), 0 to 2 (AC-fan) | ||
| 2 | |||
|- | |- | ||
| 10104 | | 10104 | ||
| Line 286: | Line 310: | ||
| Supply ventilation intensity level 3 (EC-type fan) | | Supply ventilation intensity level 3 (EC-type fan) | ||
| 20 to 100% (EC-fan only) | | 20 to 100% (EC-fan only) | ||
| - | |||
|- | |- | ||
| 10105 | | 10105 | ||
| Line 293: | Line 318: | ||
| Supply ventilation intensity level 4 (EC-type fan) | | Supply ventilation intensity level 4 (EC-type fan) | ||
| 20 to 100% (EC-fan only) | | 20 to 100% (EC-fan only) | ||
| - | |||
|- | |- | ||
| 10106 | | 10106 | ||
| Line 300: | Line 326: | ||
| Exhaust ventilation intensity level 1 (EC-type fan) | | Exhaust ventilation intensity level 1 (EC-type fan) | ||
| 20 to 100% (EC-fan only) | | 20 to 100% (EC-fan only) | ||
| - | |||
|- | |- | ||
| 10107 | | 10107 | ||
| Line 307: | Line 334: | ||
| Exhaust ventilation intensity level 2 (EC-type fan / AC-type fan) | | Exhaust ventilation intensity level 2 (EC-type fan / AC-type fan) | ||
| 20 to 100% (EC-fan), 0 to 2 (AC-fan) | | 20 to 100% (EC-fan), 0 to 2 (AC-fan) | ||
| 2 | |||
|- | |- | ||
| 10108 | | 10108 | ||
| Line 314: | Line 342: | ||
| Exhaust ventilation intensity level 3 (EC-type fan) | | Exhaust ventilation intensity level 3 (EC-type fan) | ||
| 20 to 100% (EC-fan only) | | 20 to 100% (EC-fan only) | ||
| - | |||
|- | |- | ||
| 10109 | | 10109 | ||
| Line 321: | Line 350: | ||
| Exhaust ventilation intensity level 4 (EC-type fan) | | Exhaust ventilation intensity level 4 (EC-type fan) | ||
| 20 to 100% (EC-fan only) | | 20 to 100% (EC-fan only) | ||
| - | |||
|- | |- | ||
| 10110 | | 10110 | ||
| Line 326: | Line 356: | ||
| Integer | | Integer | ||
| 0..1 | | 0..1 | ||
| Override/ | | Override/OVR-mode, enables fan override intensity level for a set time period | ||
| 0-Disable, 1-Enable - DIP switch 4 set to ON will disable the exhaust fan, or OFF to leave both fans running | | 0-Disable, 1-Enable - DIP switch 4 set to ON will disable the exhaust fan, or OFF to leave both fans running | ||
| 0 | |||
|- | |- | ||
| 10111 | | 10111 | ||
| Line 335: | Line 366: | ||
| Override mode timer duration | | Override mode timer duration | ||
| 1 to 90 minutes | | 1 to 90 minutes | ||
| 30 | |||
|- | |- | ||
| 10112 | | 10112 | ||
| Line 342: | Line 374: | ||
| Override timer count down | | Override timer count down | ||
| 0 to 90 minutes | | 0 to 90 minutes | ||
| - | |||
|- | |- | ||
|} | |} | ||
=== | === Scheduler === | ||
63 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | {| border="0" cellspacing="0" cellpadding="1" class="wikitable" | ||
| Line 410: | Line 390: | ||
| '''Description''' | | '''Description''' | ||
| '''Data values''' | | '''Data values''' | ||
| '''Default value''' | |||
|- | |- | ||
| 10199 | | 10199 | ||
| Line 417: | Line 398: | ||
| Mon1 start time | | Mon1 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10200 | | 10200 | ||
| Line 424: | Line 406: | ||
| Mon1 stop time | | Mon1 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10201 | | 10201 | ||
| Line 431: | Line 414: | ||
| Mon2 start time | | Mon2 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10202 | | 10202 | ||
| Line 438: | Line 422: | ||
| Mon2 stop time | | Mon2 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10203 | | 10203 | ||
| Line 445: | Line 430: | ||
| Mon3 start time | | Mon3 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10204 | | 10204 | ||
| Line 452: | Line 438: | ||
| Mon3 stop time | | Mon3 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10205 | | 10205 | ||
| Line 459: | Line 446: | ||
| Tue1 start time | | Tue1 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10206 | | 10206 | ||
| Line 466: | Line 454: | ||
| Tue1 stop time | | Tue1 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10207 | | 10207 | ||
| Line 473: | Line 462: | ||
| Tue2 start time | | Tue2 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10208 | | 10208 | ||
| Line 480: | Line 470: | ||
| Tue2 stop time | | Tue2 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10209 | | 10209 | ||
| Line 487: | Line 478: | ||
| Tue3 start time | | Tue3 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10210 | | 10210 | ||
| Line 494: | Line 486: | ||
| Tue3 stop time | | Tue3 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10211 | | 10211 | ||
| Line 501: | Line 494: | ||
| Wed1 start time | | Wed1 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10212 | | 10212 | ||
| Line 508: | Line 502: | ||
| Wed1 stop time | | Wed1 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10213 | | 10213 | ||
| Line 515: | Line 510: | ||
| Wed2 start time | | Wed2 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10214 | | 10214 | ||
| Line 522: | Line 518: | ||
| Wed2 stop time | | Wed2 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10215 | | 10215 | ||
| Line 529: | Line 526: | ||
| Wed3 start time | | Wed3 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10216 | | 10216 | ||
| Line 536: | Line 534: | ||
| Wed3 stop time | | Wed3 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10217 | | 10217 | ||
| Line 543: | Line 542: | ||
| Thu1 start time | | Thu1 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10218 | | 10218 | ||
| Line 550: | Line 550: | ||
| Thu1 stop time | | Thu1 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10219 | | 10219 | ||
| Line 557: | Line 558: | ||
| Thu2 start time | | Thu2 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10220 | | 10220 | ||
| Line 564: | Line 566: | ||
| Thu2 stop time | | Thu2 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10221 | | 10221 | ||
| Line 571: | Line 574: | ||
| Thu3 start time | | Thu3 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10222 | | 10222 | ||
| Line 578: | Line 582: | ||
| Thu3 stop time | | Thu3 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10223 | | 10223 | ||
| Line 585: | Line 590: | ||
| Fri1 start time | | Fri1 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10224 | | 10224 | ||
| Line 592: | Line 598: | ||
| Fri1 stop time | | Fri1 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10225 | | 10225 | ||
| Line 599: | Line 606: | ||
| Fri2 start time | | Fri2 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10226 | | 10226 | ||
| Line 606: | Line 614: | ||
| Fri2 stop time | | Fri2 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10227 | | 10227 | ||
| Line 613: | Line 622: | ||
| Fri3 start time | | Fri3 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10228 | | 10228 | ||
| Line 620: | Line 630: | ||
| Fri3 stop time | | Fri3 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10229 | | 10229 | ||
| Line 627: | Line 638: | ||
| Sat1 start time | | Sat1 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10230 | | 10230 | ||
| Line 634: | Line 646: | ||
| Sat1 stop time | | Sat1 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10231 | | 10231 | ||
| Line 641: | Line 654: | ||
| Sat2 start time | | Sat2 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10232 | | 10232 | ||
| Line 648: | Line 662: | ||
| Sat2 stop time | | Sat2 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10233 | | 10233 | ||
| Line 655: | Line 670: | ||
| Sat3 start time | | Sat3 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10234 | | 10234 | ||
| Line 662: | Line 678: | ||
| Sat3 stop time | | Sat3 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10235 | | 10235 | ||
| Line 669: | Line 686: | ||
| Sun1 start time | | Sun1 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10236 | | 10236 | ||
| Line 676: | Line 694: | ||
| Sun1 stop time | | Sun1 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10237 | | 10237 | ||
| Line 683: | Line 702: | ||
| Sun2 start time | | Sun2 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10238 | | 10238 | ||
| Line 690: | Line 710: | ||
| Sun2 stop time | | Sun2 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10239 | | 10239 | ||
| Line 697: | Line 718: | ||
| Sun3 start time | | Sun3 start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10240 | | 10240 | ||
| Line 704: | Line 726: | ||
| Sun3 stop time | | Sun3 stop time | ||
| Ex. 15:05 => 0x0F05 | | Ex. 15:05 => 0x0F05 | ||
| - | |||
|- | |- | ||
| 10241 | | 10241 | ||
| Line 711: | Line 734: | ||
| Mon1 ventilation level (fan speed) | | Mon1 ventilation level (fan speed) | ||
| 0-Standby, 1-Low, 2-Normal, 3-High | | 0-Standby, 1-Low, 2-Normal, 3-High | ||
| - | |||
|- | |- | ||
| 10242 | | 10242 | ||
| Line 718: | Line 742: | ||
| Mon2 ventilation level (fan speed) | | Mon2 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10243 | | 10243 | ||
| Line 725: | Line 750: | ||
| Mon3 ventilation level (fan speed) | | Mon3 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10244 | | 10244 | ||
| Line 732: | Line 758: | ||
| Tue1 ventilation level (fan speed) | | Tue1 ventilation level (fan speed) | ||
| 0-Standby, 1-Low, 2-Normal, 3-High | | 0-Standby, 1-Low, 2-Normal, 3-High | ||
| - | |||
|- | |- | ||
| 10245 | | 10245 | ||
| Line 739: | Line 766: | ||
| Tue2 ventilation level (fan speed) | | Tue2 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10246 | | 10246 | ||
| Line 746: | Line 774: | ||
| Tue3 ventilation level (fan speed) | | Tue3 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10247 | | 10247 | ||
| Line 753: | Line 782: | ||
| Wed1 ventilation level (fan speed) | | Wed1 ventilation level (fan speed) | ||
| 0-Standby, 1-Low, 2-Normal, 3-High | | 0-Standby, 1-Low, 2-Normal, 3-High | ||
| - | |||
|- | |- | ||
| 10248 | | 10248 | ||
| Line 760: | Line 790: | ||
| Wed2 ventilation level (fan speed) | | Wed2 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10249 | | 10249 | ||
| Line 767: | Line 798: | ||
| Wed3 ventilation level (fan speed) | | Wed3 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10250 | | 10250 | ||
| Line 774: | Line 806: | ||
| Thu1 ventilation level (fan speed) | | Thu1 ventilation level (fan speed) | ||
| 0-Standby, 1-Low, 2-Normal, 3-High | | 0-Standby, 1-Low, 2-Normal, 3-High | ||
| - | |||
|- | |- | ||
| 10251 | | 10251 | ||
| Line 781: | Line 814: | ||
| Thu2 ventilation level (fan speed) | | Thu2 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10252 | | 10252 | ||
| Line 788: | Line 822: | ||
| Thu3 ventilation level (fan speed) | | Thu3 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10253 | | 10253 | ||
| Line 795: | Line 830: | ||
| Fri1 ventilation level (fan speed) | | Fri1 ventilation level (fan speed) | ||
| 0-Standby, 1-Low, 2-Normal, 3-High | | 0-Standby, 1-Low, 2-Normal, 3-High | ||
| - | |||
|- | |- | ||
| 10254 | | 10254 | ||
| Line 802: | Line 838: | ||
| Fri2 ventilation level (fan speed) | | Fri2 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10255 | | 10255 | ||
| Line 809: | Line 846: | ||
| Fri3 ventilation level (fan speed) | | Fri3 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10256 | | 10256 | ||
| Line 816: | Line 854: | ||
| Sat1 ventilation level (fan speed) | | Sat1 ventilation level (fan speed) | ||
| 0-Standby, 1-Low, 2-Normal, 3-High | | 0-Standby, 1-Low, 2-Normal, 3-High | ||
| - | |||
|- | |- | ||
| 10257 | | 10257 | ||
| Line 823: | Line 862: | ||
| Sat2 ventilation level (fan speed) | | Sat2 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10258 | | 10258 | ||
| Line 830: | Line 870: | ||
| Sat3 ventilation level (fan speed) | | Sat3 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10259 | | 10259 | ||
| Line 837: | Line 878: | ||
| Sun1 ventilation level (fan speed) | | Sun1 ventilation level (fan speed) | ||
| 0-Standby, 1-Low, 2-Normal, 3-High | | 0-Standby, 1-Low, 2-Normal, 3-High | ||
| - | |||
|- | |- | ||
| 10260 | | 10260 | ||
| Line 844: | Line 886: | ||
| Sun2 ventilation level (fan speed) | | Sun2 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |- | ||
| 10261 | | 10261 | ||
| Line 851: | Line 894: | ||
| Sun3 ventilation level (fan speed) | | Sun3 ventilation level (fan speed) | ||
| 0 to 3 | | 0 to 3 | ||
| - | |||
|- | |||
|} | |||
=== Temperature === | |||
6 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | |||
|- | |||
| '''Modbus register actual''' | |||
| '''Type''' | |||
| '''Access''' | |||
| '''Range''' | |||
| '''Description''' | |||
| '''Data values''' | |||
| '''Default value''' | |||
|- | |||
| 10299 | |||
| Read | |||
| Integer | |||
| -300..750 | |||
| Supply air temperature, C (sensor B1, after heat exchanger and heater element, to rooms) | |||
| -30 to 75C, 10x C, ex. 250 => 25.0C | |||
| - | |||
|- | |||
| 10300 | |||
| Read/write | |||
| Integer | |||
| 100..400 | |||
| Supply set point temperature, C (for calculation of recuperation, heating levels) | |||
| 10 to 40C, 10x C, ex. 25.0C => 250 | |||
| 23 | |||
|- | |||
| 10301 | |||
| Read/write | |||
| Integer | |||
| -90..90 | |||
| Temperature correction, C (time based, lower or raise temperature in a set period) | |||
| -9 to +9C, 10x C, ex. +4.5C => 45 | |||
| 0 | |||
|- | |||
| 10302 | |||
| Read/write | |||
| 2x Char/Int8 | |||
| 0x0000..0x183B | |||
| Temperature correction start time | |||
| Ex. 08:05 => 0x0805 | |||
| - | |||
|- | |||
| 10303 | |||
| Read/write | |||
| 2x Char/Int8 | |||
| 0x0000..0x183B | |||
| Temperature correction stop time | |||
| Ex. 15:05 => 0x0F05 (15=0x0F, 05=0x05) | |||
| - | |||
|- | |||
| 10304 | |||
| Read | |||
| Integer | |||
| -100..1100 | |||
| Water temperature, C (external, sensor B5, if installed, DIP switch 2 set to ON) | |||
| -10 to 110C, 10x C, ex. 320 => 32.0C | |||
| - | |||
|- | |- | ||
|} | |} | ||
=== Operation === | === Operation control panel (not in tech doc) === | ||
29 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | {| border="0" cellspacing="0" cellpadding="1" class="wikitable" | ||
| Line 864: | Line 975: | ||
| '''Description''' | | '''Description''' | ||
| '''Data values''' | | '''Data values''' | ||
| '''Default value''' | |||
|- | |- | ||
| 10399 | | 10399 | ||
| Line 869: | Line 981: | ||
| Binary | | Binary | ||
| 0x0..0xF [b3-b0, 0..1]<br>Ex. 0x01=>64=>00000001<br>b0=1, rotating heat exchanger | | 0x0..0xF [b3-b0, 0..1]<br>Ex. 0x01=>64=>00000001<br>b0=1, rotating heat exchanger | ||
| DIP switch status | | System configuration/DIP switch status | ||
| b0-Heat exchange type, <br>b1-Heater type, <br>b2-Fan type, <br>b3-OVR-mode<br>(1-On, 0-Off) | | b0-Heat exchange type (0-RECU/1-REGO), <br>b1-Heater type (0-Electric/1-Water), <br>b2-Fan type (0-AC/1-EC), <br>b3-OVR-mode (0-All fans/1-Exhaust fan stop)<br>(1-On, 0-Off) | ||
| - | |||
|- | |- | ||
| 10400 | | 10400 | ||
| Line 878: | Line 991: | ||
| AHU start/stop control | | AHU start/stop control | ||
| 1-Start, 0-Stop | | 1-Start, 0-Stop | ||
| - | |||
|- | |- | ||
| 10401 | | 10401 | ||
| Line 885: | Line 999: | ||
| Control mode (Auto/Manual) (no Comfort or Economy mode available) | | Control mode (Auto/Manual) (no Comfort or Economy mode available) | ||
| 0-Manual (preset fan speed), 1-Auto (schedule) | | 0-Manual (preset fan speed), 1-Auto (schedule) | ||
| 0 | |||
|- | |- | ||
| 10402 | | 10402 | ||
| Line 890: | Line 1,005: | ||
| Integer | | Integer | ||
| 1..3 | | 1..3 | ||
| Ventilation intensity level (manual mode) | | Ventilation intensity level (in manual mode) | ||
| 1-Low fan speed (60VAC), <br>2-Normal fan speed (recommended) (150VAC), <br>3-High fan speed (230VAC) | | 1-Low fan speed (60VAC), <br>2-Normal fan speed (recommended) (150VAC), <br>3-High fan speed (230VAC) | ||
| 2 | |||
|- | |- | ||
| 10403 | | 10403 | ||
| Line 898: | Line 1,014: | ||
| 0..4 | | 0..4 | ||
| Ventilation intensity level current | | Ventilation intensity level current | ||
| 0-Standby, <br>1-Low fan speed, <br>2-Normal fan speed, <br>3-High fan speed, <br>4-Override mode | | 0-Standby, <br>1-Low fan speed, <br>2-Normal fan speed, <br>3-High fan speed, <br>4-Override mode (OVR-register enabled or FC-wiring closed) | ||
| - | |||
|- | |- | ||
| 10404 | | 10404 | ||
| Line 906: | Line 1,023: | ||
| Supply fan level 0 set point | | Supply fan level 0 set point | ||
| 0 to 100% | | 0 to 100% | ||
| 0 | |||
|- | |- | ||
| 10405 | | 10405 | ||
| Line 913: | Line 1,031: | ||
| Supply fan level 1 set point | | Supply fan level 1 set point | ||
| 0 to 100% | | 0 to 100% | ||
| 20 | |||
|- | |- | ||
| 10406 | | 10406 | ||
| Line 920: | Line 1,039: | ||
| Supply fan level 2 set point | | Supply fan level 2 set point | ||
| 0 to 100% | | 0 to 100% | ||
| 60 | |||
|- | |- | ||
| 10407 | | 10407 | ||
| Line 927: | Line 1,047: | ||
| Exhaust fan level 0 set point | | Exhaust fan level 0 set point | ||
| 0 to 100% | | 0 to 100% | ||
| 0 | |||
|- | |- | ||
| 10408 | | 10408 | ||
| Line 934: | Line 1,055: | ||
| Exhaust fan level 1 set point | | Exhaust fan level 1 set point | ||
| 0 to 100% | | 0 to 100% | ||
| 20 | |||
|- | |- | ||
| 10409 | | 10409 | ||
| Line 941: | Line 1,063: | ||
| Exhaust fan level 2 set point | | Exhaust fan level 2 set point | ||
| 0 to 100% | | 0 to 100% | ||
| 60 | |||
|- | |- | ||
| 10410 | | 10410 | ||
| Line 948: | Line 1,071: | ||
| Override supply fan level set point | | Override supply fan level set point | ||
| 0 to 100% | | 0 to 100% | ||
| 100 | |||
|- | |- | ||
| 10411 | | 10411 | ||
| Line 955: | Line 1,079: | ||
| Override exhaust fan level set point (for standby/0%, set DIP switch 4 to ON) | | Override exhaust fan level set point (for standby/0%, set DIP switch 4 to ON) | ||
| 0 to 100% | | 0 to 100% | ||
| 100 | |||
|- | |- | ||
| 10412 | | 10412 | ||
| Line 962: | Line 1,087: | ||
| Supply set point temperature, C (for calculation of recuperation, heating levels) | | Supply set point temperature, C (for calculation of recuperation, heating levels) | ||
| 0 to 30C, 10x C, ex. 25.0C => 250 | | 0 to 30C, 10x C, ex. 25.0C => 250 | ||
| 23 | |||
|- | |- | ||
| 10413 | | 10413 | ||
| Line 969: | Line 1,095: | ||
| Season (heating permitted or prohibited) | | Season (heating permitted or prohibited) | ||
| 1-Winter, 0-Summer (air heating off) | | 1-Winter, 0-Summer (air heating off) | ||
| 1 | |||
|- | |- | ||
| 10414 | | 10414 | ||
| Line 976: | Line 1,103: | ||
| Temperature correction, C (time based, lower or raise temperature in a set period) | | Temperature correction, C (time based, lower or raise temperature in a set period) | ||
| -9 to +9C, 10x C, ex. +4.5C => 45 | | -9 to +9C, 10x C, ex. +4.5C => 45 | ||
| 0 | |||
|- | |- | ||
| 10415 | | 10415 | ||
| Line 983: | Line 1,111: | ||
| Temperature correction start time | | Temperature correction start time | ||
| Ex. 08:05 => 0x0805 | | Ex. 08:05 => 0x0805 | ||
| - | |||
|- | |- | ||
| 10416 | | 10416 | ||
| Line 989: | Line 1,118: | ||
| 0x0000..0x183B | | 0x0000..0x183B | ||
| Temperature correction stop time | | Temperature correction stop time | ||
| Ex. 15:05 => 0x0F05 (15=0x0F, 05=0x05) | | Ex. 15:05 => 0x0F05 ([https://www.google.com/search?client=firefox-b-d&q=15+in+hex 15=0x0F], [https://www.google.com/search?client=firefox-b-d&q=05+in+hex 05=0x05]) | ||
| - | |||
|- | |- | ||
| 10417 | | 10417 | ||
| Line 997: | Line 1,127: | ||
| Supply air temperature, C (after heat exchanger and heater element, to rooms) | | Supply air temperature, C (after heat exchanger and heater element, to rooms) | ||
| -30 to 75C, 10x C, ex. 250 => 25.0C | | -30 to 75C, 10x C, ex. 250 => 25.0C | ||
| - | |||
|- | |- | ||
| 10418 | | 10418 | ||
| Line 1,004: | Line 1,135: | ||
| Water temperature, C (external, if installed, DIP switch 2 set to ON) | | Water temperature, C (external, if installed, DIP switch 2 set to ON) | ||
| -10 to 110C, 10x C, ex. 320 => 32.0C | | -10 to 110C, 10x C, ex. 320 => 32.0C | ||
| - | |||
|- | |- | ||
| 10419 | | 10419 | ||
| Line 1,011: | Line 1,143: | ||
| Recuperation level (rotating heat exchanger, DIP switch 1 set to ON - not adjustable directly only through supply set point temperature) | | Recuperation level (rotating heat exchanger, DIP switch 1 set to ON - not adjustable directly only through supply set point temperature) | ||
| 0 to 100% | | 0 to 100% | ||
| - | |||
|- | |- | ||
| 10420 | | 10420 | ||
| Line 1,018: | Line 1,151: | ||
| Supply fan level current | | Supply fan level current | ||
| 0 to 100% | | 0 to 100% | ||
| - | |||
|- | |- | ||
| 10421 | | 10421 | ||
| Line 1,025: | Line 1,159: | ||
| Exhaust fan level current | | Exhaust fan level current | ||
| 0 to 100% | | 0 to 100% | ||
| - | |||
|- | |- | ||
| 10422 | | 10422 | ||
| Line 1,032: | Line 1,167: | ||
| Electric heater level current (heating element, DIP switch 2 set to OFF) | | Electric heater level current (heating element, DIP switch 2 set to OFF) | ||
| 0 to 100% | | 0 to 100% | ||
| - | |||
|- | |- | ||
| 10423 | | 10423 | ||
| Line 1,039: | Line 1,175: | ||
| Water heating level current (external, if installed, DIP switch 2 set to ON) | | Water heating level current (external, if installed, DIP switch 2 set to ON) | ||
| 0 to 100% | | 0 to 100% | ||
| - | |||
|- | |- | ||
| 10424 | | 10424 | ||
| Line 1,046: | Line 1,183: | ||
| Water cooling level current (external, if installed, DIP switch 2 set to ON) | | Water cooling level current (external, if installed, DIP switch 2 set to ON) | ||
| 0 to 100% | | 0 to 100% | ||
| - | |||
|- | |- | ||
|- | |- | ||
| Line 1,053: | Line 1,191: | ||
| - | | - | ||
| Unknown | | Unknown | ||
| - | |||
|- | |- | ||
| 10426 | | 10426 | ||
| Line 1,060: | Line 1,199: | ||
| Alarm status (warnings) | | Alarm status (warnings) | ||
| 14-Service, 13-Heater off, 11-Rotor stop | | 14-Service, 13-Heater off, 11-Rotor stop | ||
| - | |||
|- | |- | ||
| 10427 | | 10427 | ||
| Line 1,067: | Line 1,207: | ||
| Alarm status (stop code) | | Alarm status (stop code) | ||
| 3-Rotor stop, <br>4-Heater overheating, <br>9-Supply sensor B1, <br>19-Air temp. low, <br>20-Air temp. high, <br>27-Water temp. low, <br>28-Frost possibility | | 3-Rotor stop, <br>4-Heater overheating, <br>9-Supply sensor B1, <br>19-Air temp. low, <br>20-Air temp. high, <br>27-Water temp. low, <br>28-Frost possibility | ||
| - | |||
|- | |||
|} | |||
=== Alarm history === | |||
701 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | |||
|- | |||
| '''Modbus register actual''' | |||
| '''Type''' | |||
| '''Access''' | |||
| '''Range''' | |||
| '''Description''' | |||
| '''Data values''' | |||
| '''Default value''' | |||
|- | |||
| 10499 | |||
| Read/write | |||
| Integer | |||
| 0..50 | |||
| Alarm history count | |||
| Length of log to keep | |||
| - | |||
|- | |||
| 10500 | |||
| Read | |||
| Integer | |||
| 2010..2200 | |||
| Alarm1 (newest) year | |||
| Ex. 2023 | |||
| - | |||
|- | |||
| 10501 | |||
| Read | |||
| 2x Char/Int8 | |||
| 0x0101..0x0C1F | |||
| Alarm1 (newest) month-day | |||
| Ex. 9th May => 0x0509, 31th Sept => 0x091F (Sept=0x09, 31=0x1F) | |||
| - | |||
|- | |||
| 10502 | |||
| Read | |||
| 2x Char/Int8 | |||
| 0x0000..0x183B | |||
| Alarm1 (newest) hour-minute | |||
| Ex. 08:05 => 0x0805 | |||
| - | |||
|- | |||
| 10503 | |||
| Read | |||
| Integer | |||
| 0..28 | |||
| Alarm1 (newest) alarm stop and warning code | |||
| Ex. 14-Service | |||
| - | |||
|- | |||
|.. | |||
| | |||
| | |||
| | |||
| Alarm2..Alarm49 | |||
| | |||
|- | |||
| 10696 | |||
| Read | |||
| Integer | |||
| 2010..2200 | |||
| Alarm50 (oldest) year | |||
| Ex. 2023 | |||
| - | |||
|- | |||
| 10697 | |||
| Read | |||
| 2x Char/Int8 | |||
| 0x0101..0x0C1F | |||
| Alarm50 (oldest) month-day | |||
| Ex. 9th May => 0x0509, 31th Sept => 0x091F (Sept=0x09, 31=0x1F) | |||
| - | |||
|- | |||
| 10698 | |||
| Read | |||
| 2x Char/Int8 | |||
| 0x0000..0x183B | |||
| Alarm50 (oldest) hour-minute | |||
| Ex. 08:05 => 0x0805 | |||
| - | |||
|- | |||
| 10699 | |||
| Read | |||
| Integer | |||
| 0..28 | |||
| Alarm50 (oldest) alarm stop and warning code | |||
| Ex. 14-Service | |||
| - | |||
|- | |||
|} | |||
=== Misc === | |||
4 registers, 4 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | |||
|- | |||
| '''Modbus register actual''' | |||
| '''Type''' | |||
| '''Access''' | |||
| '''Range''' | |||
| '''Description''' | |||
| '''Data values''' | |||
| '''Default value''' | |||
|- | |||
| 10799 | |||
| Read | |||
| Integer | |||
| 0..100 | |||
| Internal heater level current (heating element, DIP switch 2 set to OFF) | |||
| 0 to 100% | |||
| - | |||
|- | |||
| 10800 | |||
| Read | |||
| Integer | |||
| 0..100 | |||
| External/water heating level current (external, if installed, DIP switch 2 set to ON) | |||
| 0 to 100% | |||
| - | |||
|- | |||
| 10801 | |||
| Read | |||
| Integer | |||
| 0..100 | |||
| Service time counter | |||
| 0 to 100, when reached 100, it is service time (alarm warning 14) | |||
| - | |||
|- | |||
| 10802 | |||
| Read | |||
| Integer | |||
| 0..200 | |||
| AHU software program version | |||
| 100-V1.00, 103-V1.03 | |||
| - | |||
|- | |||
| 10889 | |||
| Read/write | |||
| Integer | |||
| -100..100 | |||
| V1 0.10V calibration value | |||
| -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | |||
| 0 | |||
|- | |||
| 10890 | |||
| Read/write | |||
| Integer | |||
| -100..100 | |||
| V2 0.10V calibration value | |||
| -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | |||
| 0 | |||
|- | |||
| 10891 | |||
| Read/write | |||
| Integer | |||
| -100..100 | |||
| External heater level calibration value | |||
| -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | |||
| 0 | |||
|- | |||
| 10892 | |||
| Read/write | |||
| Integer | |||
| -100..100 | |||
| Return water temperature calibration value | |||
| -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | |||
| 0 | |||
|- | |||
|} | |||
=== Control panel (read-only) === | |||
10 registers | |||
{| border="0" cellspacing="0" cellpadding="1" class="wikitable" | |||
|- | |||
| '''Modbus register actual''' | |||
| '''Type''' | |||
| '''Access''' | |||
| '''Range''' | |||
| '''Description''' | |||
| '''Data values''' | |||
| '''Default value''' | |||
|- | |||
| 10899 | |||
| Read | |||
| Integer | |||
| 0..1 | |||
| AHU start/stop control | |||
| 1-Start, 0-Stop | |||
| - | |||
|- | |||
| 10900 | |||
| Read | |||
| Integer | |||
| 0..1 | |||
| Season (heating permitted or prohibited) | |||
| 1-Winter, 0-Summer (heater off) | |||
| - | |||
|- | |||
| 10901 | |||
| Read | |||
| Integer | |||
| 0..1 | |||
| Control mode (Auto/Manual) | |||
| 0-Manual (preset fan speed), 1-Auto (schedule) | |||
| - | |||
|- | |||
| 10902 | |||
| Read | |||
| Integer | |||
| 0..4 | |||
| Ventilation intensity level current | |||
| 0-Standby, <br>1-Low fan speed, <br>2-Normal fan speed, <br>3-High fan speed, <br>4-Override mode (OVR-register enabled or FC-wiring closed) | |||
| - | |||
|- | |||
| 10903 | |||
| Read | |||
| Integer | |||
| 100..400 | |||
| Supply set point temperature, C | |||
| 10 to 40C, 10x C, ex. 25.0C => 250 | |||
| - | |||
|- | |||
| 10904 | |||
| Read | |||
| Integer | |||
| -300..750 | |||
| Supply air temperature, C | |||
| -30 to 75C, 10x C, ex. 250 => 25.0C | |||
| - | |||
|- | |||
| 10905 | |||
| Read/write | |||
| 2x Char/Int8 | |||
| 0x0000..0x183B | |||
| Time, hhmm | |||
| Ex. 8:05 => 0x0805, 18:30 => 0x121E (18=0x12, 30=0x1E) | |||
| - | |||
|- | |||
| 10906 | |||
| Read | |||
| Binary | |||
| 0x0..0xF [b3-b0, 0..1]<br>Ex. 0x01=>64=>00000001<br>b0=1, rotating heat exchanger | |||
| System configuration/DIP switch status | |||
| b0-Heat exchange type (0-RECU/1-REGO), <br>b1-Heater type (0-Electric/1-Water), <br>b2-Fan type (0-AC/1-EC), <br>b3-OVR-mode (0-All fans/1-Exhaust fan stop)<br>(1-On, 0-Off) | |||
| - | |||
|- | |||
| 10907 | |||
| Read | |||
| Integer | |||
| 0..14 | |||
| Alarm status (warnings) | |||
| 14-Service, 13-Heater off, 11-Rotor stop | |||
| - | |||
|- | |||
| 10908 | |||
| Read | |||
| Integer | |||
| 0..28 | |||
| Alarm status (stop code) | |||
| 3-Rotor stop, <br>4-Heater overheating, <br>9-Supply sensor B1, <br>19-Air temp. low, <br>20-Air temp. high, <br>27-Water temp. low, <br>28-Frost possibility | |||
| - | |||
|- | |- | ||
|} | |} | ||
Latest revision as of 15:40, 18 April 2024
Domekt Komfovent C4 control board is a AHU (Air Handling Unit) for use in a balanced HVAC system. The C4 is an older standard use from approx. 2010 to 2016.
If you have a unit without a control panel or want to interface the unit with an external automation. ex. Home Assistant, the following data will make that possible.
To make sure the unit works at all, jump the FC-wires together and the unit should start spinning at max. after three seconds. This confirms that the MCU works as expected.
- Domekt Komfovent C4 Modbus Register Document (PDF)
- Domekt Komfovent C4 Plus Modbus Register Document (PDF)
- Domekt Komfovent C4 (buttons) Installation and Operation Manual (PDF)
- Domekt Komfovent C4 (buttons) and C4 Plus (LCD) Installation and Operation Manual (PDF)
Tools
To manually interface with the unit over Modbus, I would recommend trying the trail version of Modbus Poll. You will have a complete control interface and can easily send queries and receive responses from the unit.
Later you can use Home Assistant to build an entire control panel, better than what is provided by the OEM.
Connection
Connect the unit to a computer using the provided RS485/ModBus cable extruding from the top. There is no need to add 820 Ohm 5V pull-up/gnd pull-down or 120 Ohm termination. It works fine as is.
The pin-out is as the following:
| RJ-45 flat cable | Wire color | Function |
|---|---|---|
| Pin 1 | - | Not used |
| Pin 2 | - | Not used |
| Pin 3 | Red | +24VDC |
| Pin 4 | Yellow | RS485 A+ |
| Pin 5 | Green | RS485 B- |
| Pin 6 | White | Gnd |
| Pin 7 | - | Not used |
| Pin 8 | - | Not used |
Modbus settings
To establish a working connection, it's important to match the following connection parameters. A single wrong setting will make the connection not work at all.
| Bits per second/baudrate | 19200 |
| Data bits/word length | 8 |
| Parity | Even |
| Stop bits | 1 |
It is also important to use the correct Modbus ID. It's the identifier on the bus and has to be correct in order for communication to happen with the AHU.
The C4 unit has a different Modbus ID than later models, so make sure to double check. Either of the following will work with only one unit on the Modbus line.
| Modbus ID | 20 (specific C4 identification address) 254 (common identification address) |
Register list
The C4 unit uses the following Modbus data register functions to read and write data.
A CR2032 battery keeps the registers concurrent when the unit is unplugged, ex. the time and date. Needs replacing after 8 years.
The unit will respond 01 Illegal register or 01 Illegal data register if you are trying to access something that does not exist. If you receive Timeout responses, make sure you use Modbus ID 20, cabling is correct, and the unit is plugged into the mains.
| Description | Modbus protocol | Function description | Unit properties |
|---|---|---|---|
| Read data | Function code 03 | Read Holding Registers / analog output holding registers | Operation status, temperatures, fans speed, and etc. |
| Write data single register | Function code 06 | Preset Single Register / analog output holding register | Turn on/off unit, set temperature, change auto/manual mode |
| Write multiple data registers | Function code 16 | Preset Multiple Registers / two analog output holding registers | Set multiple individual registers at once, similar to 06 |
Controller registers available on the C4 unit. When manually inquiring the unit, use the actual register address. This is because Domekt offsets the register address by add 9000 and subtract -1, ex. register address 1000 => 99999.
- EC = Stepper type fan motor, digitally controlled - DIP switch 3 set to ON
- AC = Regular alternating current type motor, transformer controlled - DIP switch 3 set to OFF
General
13 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 9999 | Read/write | Integer | 0..1 | AHU start/stop control | 1-Start, 0-Stop | - |
| 10000 | Read/write | Integer | 0..1 | Season (heating permitted or prohibited) | 1-Winter, 0-Summer (heater off) | 1 |
| 10001 | Read | Integer | 0..14 | Alarm status (warnings) | 14-Service, 13-Heater off, 11-Rotor stop | - |
| 10002 | Read | Binary | 0x0..0xF [b3-b0, 0..1] Ex. 0x01=>64=>00000001 b0=1, rotating heat exchanger |
System configuration/DIP switch status | b0-Heat exchange type (0-RECU/1-REGO), b1-Heater type (0-Electric/1-Water), b2-Fan type (0-AC/1-EC), b3-OVR-mode (0-All fans/1-Exhaust fan stop) (1-On, 0-Off) |
- |
| 10003 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Time, hhmm | Ex. 8:05 => 0x0805, 18:30 => 0x121E (18=0x12, 30=0x1E) | - |
| 10004 | Read/write | Integer | 1-7 | Day of the week | 1-Mon, 2-Tue, 3-Wed, 4-Thu, 5-Fri, 6-Sat, 7-Sun | - |
| 10005 | Read/write | 2x Char/Int8 | 0x0101..0x0C1F | Month-day date, mmdd | Ex. 9th May => 0x0509, 31th Sept => 0x091F (Sept=0x09, 31=0x1F) | - |
| 10006 | Read/write | Integer | 2010-2200 | Year date, yyyy | Ex. 2023 | - |
| 10007 | Read | Binary | 0x00..0x7F [b7-b0, 0..1] Ex. 0x40=>64=>00000010 b1=1, supply sensor B1 fault |
Alarm status (stop flags) | b1-Supply sensor B1, b2-Heater overheating, b3-Water temp. low, b4-Rotor stop, b5-Frost possibility, b6-Air temp. high, b7-Air temp. low (1-Fault, 0-None) |
- |
| 10008 | Read | Integer | 0..28 | Alarm status (stop code) | 3-Rotor stop, 4-Heater overheating, 9-Supply sensor B1, 19-Air temp. low, 20-Air temp. high, 27-Water temp. low, 28-Frost possibility |
- |
| 10009 | Read/write | Integer | 1..100 | Modbus ID, default 20 | Ex. 20 | 20 |
| 10010 | Read/write | Integer | 0..1 | External heater control signal type | 0-0..12V analog voltage-type, 1-12V digital PWM-type (always 0 if heater configured as water type) |
- |
| 10011 | Read | - | - | Unknown | - |
Ventilation
14 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 10099 | Read/write | Integer | 1..3 | Ventilation intensity level (manual mode) | 1-Low fan speed (60VAC), 2-Normal fan speed (recommended) (150VAC), 3-High fan speed (230VAC) |
2 |
| 10100 | Read | Integer | 0..4 | Ventilation intensity level current | 0-Standby, 1-Low fan speed, 2-Normal fan speed, 3-High fan speed, 4-Override mode (OVR-register enabled or FC-wiring closed) |
- |
| 10101 | Read/write | Integer | 0..1 | Control mode (Auto/Manual) (no Comfort or Economy mode available) | 0-Manual (preset fan speed), 1-Auto (schedule) | 0 |
| 10102 | Read/write | Integer | 20..100 / 0 | Supply ventilation intensity level 1 (EC-type fan) | 20 to 100% (EC-fan only) | - |
| 10103 | Read/write | Integer | 20..100 / 0..2 | Supply ventilation intensity level 2 (EC-type fan / AC-type fan) | 20 to 100% (EC-fan), 0 to 2 (AC-fan) | 2 |
| 10104 | Read/write | Integer | 20..100 / 0 | Supply ventilation intensity level 3 (EC-type fan) | 20 to 100% (EC-fan only) | - |
| 10105 | Read/write | Integer | 20..100 / 0 | Supply ventilation intensity level 4 (EC-type fan) | 20 to 100% (EC-fan only) | - |
| 10106 | Read/write | Integer | 20..100 / 0 | Exhaust ventilation intensity level 1 (EC-type fan) | 20 to 100% (EC-fan only) | - |
| 10107 | Read/write | Integer | 20..100 / 0..2 | Exhaust ventilation intensity level 2 (EC-type fan / AC-type fan) | 20 to 100% (EC-fan), 0 to 2 (AC-fan) | 2 |
| 10108 | Read/write | Integer | 20..100 / 0 | Exhaust ventilation intensity level 3 (EC-type fan) | 20 to 100% (EC-fan only) | - |
| 10109 | Read/write | Integer | 20..100 / 0 | Exhaust ventilation intensity level 4 (EC-type fan) | 20 to 100% (EC-fan only) | - |
| 10110 | Read/write | Integer | 0..1 | Override/OVR-mode, enables fan override intensity level for a set time period | 0-Disable, 1-Enable - DIP switch 4 set to ON will disable the exhaust fan, or OFF to leave both fans running | 0 |
| 10111 | Read/write | Integer | 1..90 | Override mode timer duration | 1 to 90 minutes | 30 |
| 10112 | Read | Integer | 0..90 | Override timer count down | 0 to 90 minutes | - |
Scheduler
63 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 10199 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Mon1 start time | Ex. 08:05 => 0x0805 | - |
| 10200 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Mon1 stop time | Ex. 15:05 => 0x0F05 | - |
| 10201 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Mon2 start time | Ex. 08:05 => 0x0805 | - |
| 10202 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Mon2 stop time | Ex. 15:05 => 0x0F05 | - |
| 10203 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Mon3 start time | Ex. 08:05 => 0x0805 | - |
| 10204 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Mon3 stop time | Ex. 15:05 => 0x0F05 | - |
| 10205 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Tue1 start time | Ex. 08:05 => 0x0805 | - |
| 10206 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Tue1 stop time | Ex. 15:05 => 0x0F05 | - |
| 10207 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Tue2 start time | Ex. 08:05 => 0x0805 | - |
| 10208 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Tue2 stop time | Ex. 15:05 => 0x0F05 | - |
| 10209 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Tue3 start time | Ex. 08:05 => 0x0805 | - |
| 10210 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Tue3 stop time | Ex. 15:05 => 0x0F05 | - |
| 10211 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Wed1 start time | Ex. 08:05 => 0x0805 | - |
| 10212 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Wed1 stop time | Ex. 15:05 => 0x0F05 | - |
| 10213 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Wed2 start time | Ex. 08:05 => 0x0805 | - |
| 10214 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Wed2 stop time | Ex. 15:05 => 0x0F05 | - |
| 10215 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Wed3 start time | Ex. 08:05 => 0x0805 | - |
| 10216 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Wed3 stop time | Ex. 15:05 => 0x0F05 | - |
| 10217 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Thu1 start time | Ex. 08:05 => 0x0805 | - |
| 10218 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Thu1 stop time | Ex. 15:05 => 0x0F05 | - |
| 10219 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Thu2 start time | Ex. 08:05 => 0x0805 | - |
| 10220 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Thu2 stop time | Ex. 15:05 => 0x0F05 | - |
| 10221 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Thu3 start time | Ex. 08:05 => 0x0805 | - |
| 10222 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Thu3 stop time | Ex. 15:05 => 0x0F05 | - |
| 10223 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Fri1 start time | Ex. 08:05 => 0x0805 | - |
| 10224 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Fri1 stop time | Ex. 15:05 => 0x0F05 | - |
| 10225 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Fri2 start time | Ex. 08:05 => 0x0805 | - |
| 10226 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Fri2 stop time | Ex. 15:05 => 0x0F05 | - |
| 10227 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Fri3 start time | Ex. 08:05 => 0x0805 | - |
| 10228 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Fri3 stop time | Ex. 15:05 => 0x0F05 | - |
| 10229 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sat1 start time | Ex. 08:05 => 0x0805 | - |
| 10230 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sat1 stop time | Ex. 15:05 => 0x0F05 | - |
| 10231 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sat2 start time | Ex. 08:05 => 0x0805 | - |
| 10232 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sat2 stop time | Ex. 15:05 => 0x0F05 | - |
| 10233 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sat3 start time | Ex. 08:05 => 0x0805 | - |
| 10234 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sat3 stop time | Ex. 15:05 => 0x0F05 | - |
| 10235 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sun1 start time | Ex. 08:05 => 0x0805 | - |
| 10236 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sun1 stop time | Ex. 15:05 => 0x0F05 | - |
| 10237 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sun2 start time | Ex. 08:05 => 0x0805 | - |
| 10238 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sun2 stop time | Ex. 15:05 => 0x0F05 | - |
| 10239 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sun3 start time | Ex. 08:05 => 0x0805 | - |
| 10240 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Sun3 stop time | Ex. 15:05 => 0x0F05 | - |
| 10241 | Read/write | Integer | 0..3 | Mon1 ventilation level (fan speed) | 0-Standby, 1-Low, 2-Normal, 3-High | - |
| 10242 | Read/write | Integer | 0..3 | Mon2 ventilation level (fan speed) | 0 to 3 | - |
| 10243 | Read/write | Integer | 0..3 | Mon3 ventilation level (fan speed) | 0 to 3 | - |
| 10244 | Read/write | Integer | 0..3 | Tue1 ventilation level (fan speed) | 0-Standby, 1-Low, 2-Normal, 3-High | - |
| 10245 | Read/write | Integer | 0..3 | Tue2 ventilation level (fan speed) | 0 to 3 | - |
| 10246 | Read/write | Integer | 0..3 | Tue3 ventilation level (fan speed) | 0 to 3 | - |
| 10247 | Read/write | Integer | 0..3 | Wed1 ventilation level (fan speed) | 0-Standby, 1-Low, 2-Normal, 3-High | - |
| 10248 | Read/write | Integer | 0..3 | Wed2 ventilation level (fan speed) | 0 to 3 | - |
| 10249 | Read/write | Integer | 0..3 | Wed3 ventilation level (fan speed) | 0 to 3 | - |
| 10250 | Read/write | Integer | 0..3 | Thu1 ventilation level (fan speed) | 0-Standby, 1-Low, 2-Normal, 3-High | - |
| 10251 | Read/write | Integer | 0..3 | Thu2 ventilation level (fan speed) | 0 to 3 | - |
| 10252 | Read/write | Integer | 0..3 | Thu3 ventilation level (fan speed) | 0 to 3 | - |
| 10253 | Read/write | Integer | 0..3 | Fri1 ventilation level (fan speed) | 0-Standby, 1-Low, 2-Normal, 3-High | - |
| 10254 | Read/write | Integer | 0..3 | Fri2 ventilation level (fan speed) | 0 to 3 | - |
| 10255 | Read/write | Integer | 0..3 | Fri3 ventilation level (fan speed) | 0 to 3 | - |
| 10256 | Read/write | Integer | 0..3 | Sat1 ventilation level (fan speed) | 0-Standby, 1-Low, 2-Normal, 3-High | - |
| 10257 | Read/write | Integer | 0..3 | Sat2 ventilation level (fan speed) | 0 to 3 | - |
| 10258 | Read/write | Integer | 0..3 | Sat3 ventilation level (fan speed) | 0 to 3 | - |
| 10259 | Read/write | Integer | 0..3 | Sun1 ventilation level (fan speed) | 0-Standby, 1-Low, 2-Normal, 3-High | - |
| 10260 | Read/write | Integer | 0..3 | Sun2 ventilation level (fan speed) | 0 to 3 | - |
| 10261 | Read/write | Integer | 0..3 | Sun3 ventilation level (fan speed) | 0 to 3 | - |
Temperature
6 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 10299 | Read | Integer | -300..750 | Supply air temperature, C (sensor B1, after heat exchanger and heater element, to rooms) | -30 to 75C, 10x C, ex. 250 => 25.0C | - |
| 10300 | Read/write | Integer | 100..400 | Supply set point temperature, C (for calculation of recuperation, heating levels) | 10 to 40C, 10x C, ex. 25.0C => 250 | 23 |
| 10301 | Read/write | Integer | -90..90 | Temperature correction, C (time based, lower or raise temperature in a set period) | -9 to +9C, 10x C, ex. +4.5C => 45 | 0 |
| 10302 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Temperature correction start time | Ex. 08:05 => 0x0805 | - |
| 10303 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Temperature correction stop time | Ex. 15:05 => 0x0F05 (15=0x0F, 05=0x05) | - |
| 10304 | Read | Integer | -100..1100 | Water temperature, C (external, sensor B5, if installed, DIP switch 2 set to ON) | -10 to 110C, 10x C, ex. 320 => 32.0C | - |
Operation control panel (not in tech doc)
29 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 10399 | Read | Binary | 0x0..0xF [b3-b0, 0..1] Ex. 0x01=>64=>00000001 b0=1, rotating heat exchanger |
System configuration/DIP switch status | b0-Heat exchange type (0-RECU/1-REGO), b1-Heater type (0-Electric/1-Water), b2-Fan type (0-AC/1-EC), b3-OVR-mode (0-All fans/1-Exhaust fan stop) (1-On, 0-Off) |
- |
| 10400 | Read/write | Integer | 0..1 | AHU start/stop control | 1-Start, 0-Stop | - |
| 10401 | Read/write | Integer | 0..1 | Control mode (Auto/Manual) (no Comfort or Economy mode available) | 0-Manual (preset fan speed), 1-Auto (schedule) | 0 |
| 10402 | Read/write | Integer | 1..3 | Ventilation intensity level (in manual mode) | 1-Low fan speed (60VAC), 2-Normal fan speed (recommended) (150VAC), 3-High fan speed (230VAC) |
2 |
| 10403 | Read | Integer | 0..4 | Ventilation intensity level current | 0-Standby, 1-Low fan speed, 2-Normal fan speed, 3-High fan speed, 4-Override mode (OVR-register enabled or FC-wiring closed) |
- |
| 10404 | Read | Integer | 0..100 | Supply fan level 0 set point | 0 to 100% | 0 |
| 10405 | Read | Integer | 0..100 | Supply fan level 1 set point | 0 to 100% | 20 |
| 10406 | Read | Integer | 0..100 | Supply fan level 2 set point | 0 to 100% | 60 |
| 10407 | Read | Integer | 0..100 | Exhaust fan level 0 set point | 0 to 100% | 0 |
| 10408 | Read | Integer | 0..100 | Exhaust fan level 1 set point | 0 to 100% | 20 |
| 10409 | Read | Integer | 0..100 | Exhaust fan level 2 set point | 0 to 100% | 60 |
| 10410 | Read | Integer | 0..100 | Override supply fan level set point | 0 to 100% | 100 |
| 10411 | Read | Integer | 0..100 | Override exhaust fan level set point (for standby/0%, set DIP switch 4 to ON) | 0 to 100% | 100 |
| 10412 | Read/write | Integer | 0..300 | Supply set point temperature, C (for calculation of recuperation, heating levels) | 0 to 30C, 10x C, ex. 25.0C => 250 | 23 |
| 10413 | Read/write | Integer | 0..1 | Season (heating permitted or prohibited) | 1-Winter, 0-Summer (air heating off) | 1 |
| 10414 | Read/write | Integer | -90..90 | Temperature correction, C (time based, lower or raise temperature in a set period) | -9 to +9C, 10x C, ex. +4.5C => 45 | 0 |
| 10415 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Temperature correction start time | Ex. 08:05 => 0x0805 | - |
| 10416 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Temperature correction stop time | Ex. 15:05 => 0x0F05 (15=0x0F, 05=0x05) | - |
| 10417 | Read | Integer | -300..750 | Supply air temperature, C (after heat exchanger and heater element, to rooms) | -30 to 75C, 10x C, ex. 250 => 25.0C | - |
| 10418 | Read | Integer | -100..1100 | Water temperature, C (external, if installed, DIP switch 2 set to ON) | -10 to 110C, 10x C, ex. 320 => 32.0C | - |
| 10419 | Read | Integer | 0..100 | Recuperation level (rotating heat exchanger, DIP switch 1 set to ON - not adjustable directly only through supply set point temperature) | 0 to 100% | - |
| 10420 | Read | Integer | 0..100 | Supply fan level current | 0 to 100% | - |
| 10421 | Read | Integer | 0..100 | Exhaust fan level current | 0 to 100% | - |
| 10422 | Read | Integer | 0..100 | Electric heater level current (heating element, DIP switch 2 set to OFF) | 0 to 100% | - |
| 10423 | Read | Integer | 0..100 | Water heating level current (external, if installed, DIP switch 2 set to ON) | 0 to 100% | - |
| 10424 | Read | Integer | 0..100 | Water cooling level current (external, if installed, DIP switch 2 set to ON) | 0 to 100% | - |
| 10425 | Read | - | - | Unknown | - | |
| 10426 | Read | Integer | 0..14 | Alarm status (warnings) | 14-Service, 13-Heater off, 11-Rotor stop | - |
| 10427 | Read | Integer | 0..28 | Alarm status (stop code) | 3-Rotor stop, 4-Heater overheating, 9-Supply sensor B1, 19-Air temp. low, 20-Air temp. high, 27-Water temp. low, 28-Frost possibility |
- |
Alarm history
701 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 10499 | Read/write | Integer | 0..50 | Alarm history count | Length of log to keep | - |
| 10500 | Read | Integer | 2010..2200 | Alarm1 (newest) year | Ex. 2023 | - |
| 10501 | Read | 2x Char/Int8 | 0x0101..0x0C1F | Alarm1 (newest) month-day | Ex. 9th May => 0x0509, 31th Sept => 0x091F (Sept=0x09, 31=0x1F) | - |
| 10502 | Read | 2x Char/Int8 | 0x0000..0x183B | Alarm1 (newest) hour-minute | Ex. 08:05 => 0x0805 | - |
| 10503 | Read | Integer | 0..28 | Alarm1 (newest) alarm stop and warning code | Ex. 14-Service | - |
| .. | Alarm2..Alarm49 | |||||
| 10696 | Read | Integer | 2010..2200 | Alarm50 (oldest) year | Ex. 2023 | - |
| 10697 | Read | 2x Char/Int8 | 0x0101..0x0C1F | Alarm50 (oldest) month-day | Ex. 9th May => 0x0509, 31th Sept => 0x091F (Sept=0x09, 31=0x1F) | - |
| 10698 | Read | 2x Char/Int8 | 0x0000..0x183B | Alarm50 (oldest) hour-minute | Ex. 08:05 => 0x0805 | - |
| 10699 | Read | Integer | 0..28 | Alarm50 (oldest) alarm stop and warning code | Ex. 14-Service | - |
Misc
4 registers, 4 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 10799 | Read | Integer | 0..100 | Internal heater level current (heating element, DIP switch 2 set to OFF) | 0 to 100% | - |
| 10800 | Read | Integer | 0..100 | External/water heating level current (external, if installed, DIP switch 2 set to ON) | 0 to 100% | - |
| 10801 | Read | Integer | 0..100 | Service time counter | 0 to 100, when reached 100, it is service time (alarm warning 14) | - |
| 10802 | Read | Integer | 0..200 | AHU software program version | 100-V1.00, 103-V1.03 | - |
| 10889 | Read/write | Integer | -100..100 | V1 0.10V calibration value | -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | 0 |
| 10890 | Read/write | Integer | -100..100 | V2 0.10V calibration value | -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | 0 |
| 10891 | Read/write | Integer | -100..100 | External heater level calibration value | -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | 0 |
| 10892 | Read/write | Integer | -100..100 | Return water temperature calibration value | -10..+10%, 10x, 1% => 10 (Write 0x99C4 to store to memory) | 0 |
Control panel (read-only)
10 registers
| Modbus register actual | Type | Access | Range | Description | Data values | Default value |
| 10899 | Read | Integer | 0..1 | AHU start/stop control | 1-Start, 0-Stop | - |
| 10900 | Read | Integer | 0..1 | Season (heating permitted or prohibited) | 1-Winter, 0-Summer (heater off) | - |
| 10901 | Read | Integer | 0..1 | Control mode (Auto/Manual) | 0-Manual (preset fan speed), 1-Auto (schedule) | - |
| 10902 | Read | Integer | 0..4 | Ventilation intensity level current | 0-Standby, 1-Low fan speed, 2-Normal fan speed, 3-High fan speed, 4-Override mode (OVR-register enabled or FC-wiring closed) |
- |
| 10903 | Read | Integer | 100..400 | Supply set point temperature, C | 10 to 40C, 10x C, ex. 25.0C => 250 | - |
| 10904 | Read | Integer | -300..750 | Supply air temperature, C | -30 to 75C, 10x C, ex. 250 => 25.0C | - |
| 10905 | Read/write | 2x Char/Int8 | 0x0000..0x183B | Time, hhmm | Ex. 8:05 => 0x0805, 18:30 => 0x121E (18=0x12, 30=0x1E) | - |
| 10906 | Read | Binary | 0x0..0xF [b3-b0, 0..1] Ex. 0x01=>64=>00000001 b0=1, rotating heat exchanger |
System configuration/DIP switch status | b0-Heat exchange type (0-RECU/1-REGO), b1-Heater type (0-Electric/1-Water), b2-Fan type (0-AC/1-EC), b3-OVR-mode (0-All fans/1-Exhaust fan stop) (1-On, 0-Off) |
- |
| 10907 | Read | Integer | 0..14 | Alarm status (warnings) | 14-Service, 13-Heater off, 11-Rotor stop | - |
| 10908 | Read | Integer | 0..28 | Alarm status (stop code) | 3-Rotor stop, 4-Heater overheating, 9-Supply sensor B1, 19-Air temp. low, 20-Air temp. high, 27-Water temp. low, 28-Frost possibility |
- |
