Atmos CombinAir Settings and Maintenance of the CombinAir Issue 13.8.10 Operation and commissioning: The control unit on the front of the CombinAir is used to adjust the settings during commissioning. The settings for the heat pump which need to be checked or adjusted during commissioning are shown in colour. This document gives guidance on how to access and change the settings.
Control unit Nr. Description Type 1 Set button button 2 Reset button button 3 hot water button button 4 hot water LED LED 5 Status 1 x 7 segments 6 CH water 2 x 7 segments
USER PROGRAM The user program is identified by a permanently lit letter followed by a dot. Access : Press the Set button for 5 seconds until the letter C. appears Next setting : Press the Set button Different value : Press the Hot Water button Exit program : Press the Reset button Status CH water Function Setting 88 CH flow temperature C C. 0.0 CH pressure sensor is de-activated 8.8 CH water pressure Bar F. 88 Last malfunction (gas boiler) G. 88 Last blocking (gas boiler) H. 88 Last malfunction (heat pump) J. 88 Last blocking (heat pump) L. 88 Last warning (heat pump) S. 00 Non standard setting INSTALLER PROGRAM The installer program is identified by permanently illuminated letter without a dot. Access : Press the Set button for 10 seconds until the letter A appears Next setting : Press the Set button Different value : Press the Hot Water button Exit program : Press the Reset button To enter sub-menu : Press the Hot Water button Status CH water A?? LL /?? HH /?? Description Ionisation flow (virtual) when appliance is operating Low capacity (continuous), alternating with the virtual ionisation flow High capacity (continuous), alternating with the virtual ionisation flow Remarks Adjusting O2% / CO2% b Sb Submenu sensor values Sub-menu sensor values c 01 One temperature zone with WDC without RT 02 03 04 05 06 One temperature zone WDC with RT Two temperature zones, linked control: Two temperature zones, linked control: Two temperature zones: Two temperature zones: Heat pump WDC without RT, Gas boiler WDC without RT Heat pump WDC with RT, Gas boiler WDC with RT Heat pump WDC without RT, gas boiler WDC without RT Heat pump WDC without RT, gas boiler WDC with RT
07 Two temperature zones: Heat pump WDC without RT, gas boiler no WDC 08 09 10 Two temperature zones: Two temperature zones: Two temperature zones: Heat pump WDC with RT, gas boiler WDC without RT Heat pump WDC with RT, gas boiler WDC with RT Heat pump WDC with RT, gas boiler no WDC d Sb Submenu CH- settings heat pump (LT zone) See settings heat pump E Sb Submenu CH- settings gas boiler (HT zone) See settings gas boiler F?1 /?2 Last malfunction (lock-out)?1 = fault serial number?2 = fault code G?1 /?2 Last blocking?1 = serial number of blocking?2 = blocking code H 0.0 0.1 0.2 0.3 0.4 1.0 24 P 00 03 06 q 05 10 15 20 S 00 11 Hot water pump overrun time 1 [min] Hot water pump overrun time 10 [min] Hot water pump overrun time 20 [min] Hot water pump overrun time 30 [min] Hot water pump overrun time 40 [min] Hot water pump overrun time 60 [min] Hot water pump overrun time continuous heating delay off heating delay 3 [min] heating delay 6 [min] Frost protection gas boiler 5ºC Frost protection gas boiler 10ºC Frost protection gas boiler 15ºC Frost protection gas boiler 20ºC Non standard settings Standard settings NL/B Standard settings D delay in responding to a call for space heating after the last firing for space heating 22 t?? Appliance recognition See blocking messages u Sb Submenu settings heat pump See settings heat pump
Submenu sensor values To access the submenu sensor values go to setting b in the service settings menu (installer program) and press the hot water button. On the status the sensor value b / A is alternately ed. Pressing the set button will the next sensor value. Exit the menu by pressing the reset button. Status CH water Description Remarks b / A Value DHW temperature ºC b / c Value CH flow temperature ºC b / C Value CH pressure bar. b / d Value CH return temperature ºC b / E Value Gas boiler fan speed Rpm (x100) b / F Value Heat pump fan speed Rpm (x100) b / G Value Heat pump air inlet temperature ºC b / H Value Heat pump evaporator temperature ºC b / I Value Heat pump condenser outlet temperature ºC b / J Value Heat pump compressed gas temperature ºC b / L Value Heat pump flow temperature ºC b / n Value Frequency flow-sensor Number b / P Value Heat pump blend temperature ºC b / q Value Heat pump system temperature ºC b / r Value Selection resistance 2 Number b / t Value Selection resistance 1 Number b / u Value Outside temperature ºC
Submenu CH settings heat pump To access to the submenu CH settings heat pump go to setting d in the service settings menu (installer program) and press the hot water button. On the status the first setting d / h is alternately ed. By pressing the set button the next setting is ed. Change the setting by pressing the hot water button. Pressing the reset button twice will exit the menu and save the settings. Status CV water d / h 01 03 05 d / H 10 20 30 40 50 60 d / o 12 20 24 d / O 15 30 25 50 d / P -5 2 10 d / q 12 15 18 21 24 d / S 4 6 8 10 d / t 1 2 4 6 d / u -15-10 0 d / U 25 40 80 Description Overrun time CH pump heat pump 1 minute Overrun time CH pump heat pump 3 minutes Overrun time CH pump heat pump 5 minutes WDC pump switching interval period 10 minutes WDC pump switching interval period 20 minutes WDC pump switching interval period 30 minutes WDC pump switching interval period 40 minutes WDC pump switching interval period 50 minutes WDC pump switching interval period 60 minutes WDC base point at outside temperature 12 ºC WDC base point at outside temperature. ºC WDC base point at outside temperature 20 ºC WDC base point at outside temperature. ºC WDC base point at outside temperature 24 ºC WDC flow temperature 15 ºC at base point d / o WDC flow temperature... ºC at base point d / o WDC flow temperature 30 ºC at base point d / o WDC flow temperature... ºC at base point d / o WDC flow temperature 25 ºC at base point d / o WDC flow temperature... ºC at base point d / o WDC flow temperature 50 ºC at base point d / o WDC base point night reduction at base point - 5 ºC WDC base point night reduction at base point - ºC WDC base point night reduction at base point 2 ºC WDC base point night reduction at base point - ºC WDC base point night reduction at base point 10 ºC WDC recalculation time RT 12 minutes WDC recalculation time RT 15 minutes WDC recalculation time RT 18 minutes WDC recalculation time RT 21 minutes WDC recalculation time RT 14 minutes WDC switching difference 4 ºC WDC switching difference 6 ºC WDC switching difference 8 ºC WDC switching difference 10 ºC Waiting time for switching on the gas boiler 30 minutes Waiting time for switching on the gas boiler 60 minutes Waiting time for switching on the gas boiler 120 minutes Waiting time for switching on the gas boiler 180 minutes WDC climate point at outside temperature 15 ºC WDC climate point at outside temperature ºC WDC climate point at outside temperature 10 ºC WDC climate point at outside temperature ºC WDC climate point at outside temperature 0 ºC WDC flow temperature 25 ºC at climate point d / u WDC flow temperature ºC at climate point d / u WDC flow temperature 40 ºC at climate point d / u WDC flow temperature ºC at climate point d / u WDC flow temperature 80 ºC at climate point d / u Remarks increments of 1 ºC increments of 1 ºC increments of 1 ºC increments of 1 ºC increments of 1 ºC increments of 5 ºC
Submenu CH settings gas boiler To access the submenu CH settings gas boiler go to setting E in the service settings menu (installer program) and press the hot water button. On the status the first setting E / h is alternately ed. By pressing the set button the next setting is ed. Change the setting by using the hot water button. Exit the menu by pressing the reset button three times. Status CH water Display E / h 40 80 90 E / h 01 03 05 E / H 10 20 30 40 50 60 E / L 00 05 10 15 E / n 00 02 05 10 E / o 12 20 24 E / O 15 30 25 50 E / P -5 2 10 E / q 12 15 18 21 24 E / S 4 6 8 10 Description CH flow maximum temperature 40 ºC increments of 1 ºC CH flow maximum temperature 80 ºC increments of 1 ºC CH flow maximum temperature 90 ºC Overrun time CH pump heat pump 1 minutes Overrun time CH pump heat pump 3 minutes Overrun time CH pump heat pump 5 minutes WDC pump switching interval period 10 minutes WDC pump switching interval period 20 minutes WDC pump switching interval period 30 min WDC pump switching interval period 40 minutes WDC pump switching interval period 50 minutes WDC pump switching interval period 60 minutes Low capacity burner time off Low capacity burner time 5 minutes Low capacity burner time 10 minutes Low capacity burner time 15 minutes Accelerated heating off Accelerated heating 2 minutes Accelerated heating 5 minutes Accelerated heating 10 minutes WDC base point at outside temperature 12 ºC WDC base point at outside temperature. ºC WDC base point at outside temperature 20 ºC WDC base point at outside temperature. ºC WDC base point at outside temperature 24 ºC WDC flow temp. 15 ºC at base point E(d) / o WDC flow temp.... ºC at base point E (d) / o WDC flow temp. 30 ºC at base point E (d) / o WDC flow temp.... ºC at base point E(d) / o WDC flow temp. 25 ºC at base point E(d) / o WDC flow temp.... ºC at base point E(d) / o WDC flow temp. 50 ºC at base point E(d) / o WDC night reduction at base point - 5 ºC WDC night reduction at base point - ºC WDC night reduction at base point 2 ºC WDC night reduction at base point - ºC WDC night reduction at base point 10 ºC WDC recalculation time RT 12 minutes WDC recalculation time RT 15 minutes WDC recalculation time RT 18 minutes WDC recalculation time RT 21 minutes WDC recalculation time RT 24 minutes WDC switching difference 4 ºC WDC switching difference 6 ºC WDC switching difference 8 ºC WDC switching difference 10 ºC Remarks Only available when installation type = 10 increments of 1 ºC increments of 1 ºC increments of 1 ºC
E / u -15-10 0 E / U 25 40 80 E / Y 07 15 24 WDC climate point at outside temperature 15 ºC WDC climate point at outside temperature ºC WDC climate point at outside temperature 10 ºC WDC climate point at outside temperature ºC WDC climate point at outside temperature 0 ºC WDC flow temp. 25 ºC at climate point E(d) / u WDC flow temp ºC at climate point E(d) / u WDC flow temp. 40 ºC at climate point E(d) / u WDC flow temp. ºC at climate point E(d) / u WDC flow temp. 80 ºC at climate point E(d) / u Capacity limitation gas boiler 7 kw Capacity limitation gas boiler 15 kw Capacity limitation gas boiler 24 kw increments of 1 ºC increments of 1 ºC increments of 5 ºC Submenu settings heat pump To access the submenu settings heat pump go to setting u in the service settings menu and press the hot water button. On the status the first setting u / C is alternately ed. Pressing the set button will bring up the next setting. Change this setting by pressing the hot water button. Pressing the reset button twice will exit the menu and save the changed settings. Status CV water Display u / C 6-66 AA u / F 1 12 15 u / P 1 15 Description Blending valve heat pump Fan speed heat pump Fan speed heat pump Fan speed heat pump Fan speed heat pump Fan speed heat pump CH pump setting (heat pump) CH pump setting (heat pump) CH pump setting (heat pump) Don t adjust! Remarks increments of 1 between 1 and 15 increments of1 between 1 and 15
WARNING, BLOCKING AND MALFUNCTION MESSAGES The Atmos CombinAir has three types of error messages: 1. Warning messages In this case, instead of the status message, a letter appears on the status for one second, once every 5 seconds. 2. Blocking messages A permanently illuminated letter appears on the status. 3. Malfunction messages A flashing letter or number appears on the status. In the event of a warning message, the function to which the message applies will be switched off while the appliance continues to operate. In the event of a malfunction message, the entire appliance will be shut down requiring manually resetting before the boiler will continue operation. OPERATING CODES ON THE ATMOS COMBINAIR Status code Function 1 Hot water heating operating 2 Central heating operating No dot No burner Slow flashing dot Minimum fire Increasingly fast flashing dot Higher & higher firing Constant dot Burner on maximum output SUMMARY OF MESSAGES This section provides a brief description of the warning, blocking and malfunction messages which appear on the unit s status. The causes of these messages are addressed in more detail in section 5. Warning messages A warning is identified by a letter that appears on the status every 5 seconds for a period of 1 second, instead of the status message. Warning message in status Diagnosis every 5 seconds b Incorrect DHW reading; value <-10 or > 118 C c Incorrect CH water pressure; value between 0 and 0,5 bar or 3 and 9 bar (capacity is limited to low setting d Incorrect CH return sensor reading; value <-10 or > 118 C h Incorrect outside sensor reading (WDC); <-10 or > 118 C
Blocking messages A blocking is an error that occurs without causing a malfunction. The unit waits until the blocking has been resolved and then continues to operate normally. A blocking is indicated by a permanently lit letter on the status. The sensor value for the sensor that the blocking message refers to, can be ed in the CH water by accessing the submenu sensor values in the installer program. Status code c CH water HH LL Diagnosis CH flow temperature sensor error; > 118 C CH flow temperature sensor error; < -10 C C CH water pressure lower than 1 bar F Mains frequency error H Internal error (control unit) L Electrical mains plug error correct supply polarity n Mains or reference voltage too low HH Appliance type recognition error; value > 118 C LL Appliance type recognition error; value < -10 C 10 Appliance type recognition error; control unit is set to 24/80 11 Appliance type recognition error; control unit is set to 24/80+ 20 Appliance type recognition error; control unit is set to 32/80 t 21 Appliance type recognition error; control unit is set to 32/80+ 22 Appliance type recognition error; control unit is set to 30/50+ 30 Appliance type recognition error; control unit is set to 38/80+ 40 Appliance type recognition error; control unit is set to Combipact 50 Appliance type recognition error; control unit is set to CombinAir 60 Appliance type recognition error; control unit is set to CombinAirCool Malfunction messages A malfunction is an error which is so serious that the unit is locked. A malfunction message is identified by a locked control unit accompanied by a flashing number or letter on the status. The appliance can only be unlocked by pressing the reset button. Status code CH water Diagnosis 1 Blocking for longer than one hour 2 Fan defective (5 Hz deviation per minute) 3 Incorrect ionisation (flame) signal 3. No ionisation (flame) signal during start-up procedure 4 Ionisation signal absent during heat supply 4. Ionisation signal remains present after heat supply 6 Gas valve control defective 7 Insufficient flow of CH water during DHW demand 7. Insufficient flow of CH water during CH demand 8 Maximum thermostat cuts out and CH water pressure was < 0,5 bar 9 Maximum thermostat cuts out and CH flow sensor was > 80 C 9. Safety internal malfunction in control unit Letter Internal malfunction in control unit (Dark ) Appliance receiving no mains power
CAUSES OF MESSAGES Warning messages A warning is identified by a letter that appears on the status every 5 seconds for a period of 1 second, instead of the status message. The appliance continues to operate, but the function to which the message applies will be switched off or ignored. Once the cause of the warning message has been solved, the appliance will start up again automatically so resetting is not necessary. The possible causes are described below in order of probability. Also look for the malfunction in this order. The sensor value for the sensor that the warning message refers to, can be ed in the CH water by accessing the submenu sensor values in the installer program. Message Diagnosis in status every 5 seconds b DHW temperature < -10 or > 118 C. In sub-menu sensor values the message HH (> 118 C) or LL (< - 10 C) appears on the CH water c CH water pressure too low or too high. Whilst this is the case the output will be limited to the lowest capacity. If the current CH water pressure is not shown on the CH water the current CH water pressure can be read through the sub-menu sensor values. d CH return temperature < -10 C or > 118 C. In the sub-menu sensor values HH (> 118 C) or LL (< - 10 C) will appear on the CH water h Outside temperature < -10 C or > 118 C. In the sub-menu sensor values HH (> 118 C) or LL (< - 10 C) will appear on the CH water (only WDC) CH water Cause HH CH temperature > 118 C Connector K4 loose or improperly connected Temperature sensor wiring interrupted. For the sensor wiring connection to connector K4 see the diagram in the appendix. Sensor defective LL CH temperature < -10 C Short circuit in temperature wiring Sensor defective 0 0,5 Bar 3 9 Bar CH system lacking water pressure Leak in the appliance or CH system CH pressure sensor defective confirmed by pressure reading remaining unchanged when filling the system wiring from pressure sensor to connector K2 defective or bad connection CH system water over pressurised (but PRV should discharge when pressure > 3 bar) Wiring from pressure sensor to connector K2 defective or bad connection CH pressure sensor defective confirmed by pressure reading remaining unchanged when water is discharged HH See cause of HH for warning code b. LL HH LL See cause of LL for warning code b See cause of HH for warning code b See cause of LL for warning code b
Blocking messages A blocking message is identified by a permanently illuminated letter on the status. Once the blocking has been solved, the appliance will start up again automatically. So resetting is not necessary. The possible causes are described below in order of probability. Also look for the malfunction in this order. Status CH water Diagnoses c HH CH flow temperature > 118 C. (access through submenu sensor values in the installer program) C LL CH flow temperature < -10 C (access through submenu sensor values in the installer program) Appliance blocked because CH system Cause Connector K4 loose or improperly connected Temperature sensor wiring interrupted. For the sensor wiring connection to connector K4 see the diagram in the appendix. Sensor defective Short circuit in temperature wiring Sensor defective CH pressure lower than 1 bar pressure is too low F Mains frequency error If this blocking occurs frequently or for a long period, replace control unit H Internal error (control unit) If this blocking occurs frequently or for a long period, replace control unit L Electrical mains supply Mains supply has wrong polarity Not earthed Ionisation electrode earth wire loose n Mains or reference voltage too low Mains voltage < 200 Volts Mains voltage insufficient HH Appliance type recognition error; value > 118 C LL Appliance type recognition error; value < - 10 C 10 Appliance type recognition error; control unit is set to 24/80 11 Appliance type recognition error; control unit is set to 24/80+ 20 Appliance type recognition error; control unit is set to 32/80 t 21 Appliance type recognition error; control unit is set to 32/80+ 22 Appliance type recognition error; control unit is set to 30/50+ 30 Appliance type recognition error; control unit is set to 38/80+ 40 Appliance type recognition error; control unit is set to 24/33 50 Appliance type recognition error; control unit is set to CombinAir 60 Appliance type recognition error; control unit is set to CombinAirCool Control unit selected incorrectly Selection resistance defective
Blocking messages heat pump Status message CH water CE 25 CE 26 CE 27 CE 28 CE 37 CE 38 CE 40 CE 41 CE 42 CE 43 CE 44 CE 45 CE 46 CE 48 CE 49 CE 50 CE 51 CE 52 CC 01 CC 02 CC 03 Cause Condenser temperature sensor error (<-30 [ C], open circuit) Compressed gas sensor error (<-30 [ C], open circuit) Heat flow temperature sensor error (<-30 [ C], open circuit) Evaporator temperature sensor error (<-30 [ C], open circuit) Air flow temperature sensor error (<-30 [ C], open circuit) Heat mixing temperature sensor error (<-30 [ C], open circuit) System temperature sensor error (<-30 [ C], open circuit) Condenser temperature sensor error (> 90 [ C], shorted) Compressed gas sensor error (> 90 [ C], shorted) Heat flow temperature sensor error (> 90 [ C], shorted) Evaporator temperature sensor error (> 90 [ C], shorted) Air flow temperature sensor error (> 90 [ C], shorted) Heat mixing temperature sensor error (> 90 [ C], shorted) System temperature sensor error (> 90 [ C], shorted) This error code can only occur if the CombinAir is connected to a two-zone system. The boiler cannot support the heat pump with the result that the dwelling is not or insufficiently heated. This may be caused by air in the system or it can be caused by a software error in the control unit of the heat pump. Communication problem between the heat pump and gas boiler. Without communications there will be no heat delivered because the position of the mixing valve is unclear. Check the connection of the data cable. Mix temperature imbalance. This will probably be caused by air in the system. CC 04 This code means that there is heat demand, but the CombinAir cannot transfer the heat to the installation. This is due to the fact that (part) of the installation is equipped with thermostatic radiator valves that are closed and that no bypass is installed, or is not open. Malfunction messages A malfunction message is indicated by a flashing number or letter on the status combined with a locked control unit. Once the malfunction is solved, the control unit must be unlocked by pressing the reset button once. Should the control unit fail to unlock, try again after approximately 20 seconds. Also look for the malfunction in this order. Code Diagnosis Cause Status 1 Blocking occurred for longer than one hour See last blocking gas boiler (through user program) 2 Fan defective (5 Hz deviation per minute) Fan not turning Fan s electrical connection loose or improperly connected 3 Incorrect ionisation (flame) signal Gas valve remains open 3. No ionisation (flame) signal during start-up procedure No gas supply Gas tap closed Gas valve defective Gas valve s electrical connection loose or
improperly connected Air supply obstructed Flue tube obstructed Siphon obstructed Ionisation cable not in order Ionisation probe defective or causing short-circuit such as against the burner or heat exchanger Ignition transformer defective Ignition transformer electrical connection loose or improperly connected Ignition cable defective Ignition electrode defective or causing short-circuit 4 Ionisation signal absent during heat supply Insufficient gas supply Syphon obstructed Ionisation probe defective or causing short-circuit such as against the burner or heat exchanger Gas valve setting incorrect O2/ CO2 content more than 7,5% at low setting Fan s low capacity circuit defective or interrupted Burner damaged 4. Ionisation signal remains present after heat supply Gas valve defective, remains open 6 Gas valve control defective Wiring error 7 Insufficient flow of CH water during DHW demand 7. Insufficient flow of CH water during CH demand 8 Maximum thermostat cuts out and CH water pressure was < 0,5 bar 9 Maximum thermostat cuts out and CH flow sensor was > 80 C Insufficient CH water pressure too low (minimum 1 bar at the appliance) Automatic de-aerator not functioning properly (air in the appliance) CH pump not running Connector K5 loose CH pump defective Thermal safety switched off Insufficient CH water pressure too low (minimum 1 bar at the appliance) Automatic de-aerator not functioning properly (air in the appliance) CH pump not running Connector K5 loose CH pump defective Thermal safety switched off All (thermostatic) radiator taps are closed (pressure difference regulator not set properly if present) CH water pressure incorrect (< 0,5 Bar) CH flow sensor not properly connected Thermal safety connection defective Thermal safety defective CH pump not running Connector K5 loose CH pump defective CH flow sensor not properly connected Thermal safety connection defective Thermal safety defective CH pump not running Connector K5 loose CH pump defective
9. Safety internal malfunction in control unit Letter Internal malfunction in control unit (Dark ) Appliance receiving no mains power Plug not inserted in wall socket No electricity from wall socket Wire loom connector K6 not connected Control unit fuse defective Mains voltage wiring defective Malfunction messages heat pump Status message CH water CA 2 CA 3 CA 4 CA 5 CA 6 CA 7 CA 8 CA 10 CA 13 CA 14 CA 15 CA 16 CA 17 CA 18 CA 19 CA 20 CA 21 CA 22 CA 23 CA 24 Cause Insufficient effect of the heat pump (temperature difference over the heat pump to low) Compressor temperature too high Insufficient heat transfer to CH installation Insufficient heat produced by the heat pump (evaporator temperature <-20 C) No compressor start (compressed gas temperature < air supply temperature Heat pump fan failure (running too fast or too slow) Insufficient heat produced by the heat pump (evaporator temperature > air supply temperature) Insufficient heat produced by the heat pump (compressed gas temperature < condenser temperature)
. APPENDIX Electrical diagram for the control unit of the gas boiler section: