Maintenance ���������������������������������������������������� 24 operating mode ���������������������������������������������������� 6 4�2 Time control ��������������������������������������������������������� 7 Disposal ������������������������������������������������������������ 24 4�3 Using CP plus and IR remote control for the air Technical data �������������������������������������������������� 24 conditioning system together ������������������������������� 8 Troubleshooting guide ������������������������������������ 25 4�4 Using CP plus and iNet Box together �������������������� 8 13�1 Heater Combi / Combi E (H) �������������������������������...
• ter understanding or to optimise work processes� Validity Symbol for an action� These instructions apply to the Truma CP plus control Something must be done here� panel, referred to a CP plus below� Optional parts Product names Reference to a picture (Fig�...
Switch off the CP plus to prevent the heater being switched Safety instructions back on by the Truma App or the time switch (see “Switching on/off”)� General safety or CP plus CI-BUS for CI-BUS – cannot be retrofitted�...
Only competent, trained personnel (experts) may in- If a Combi heater is connected to the CP plus, you stall and repair the Truma product and carry out the can no longer use the time switch ZUCB� function check with consideration of the installation and operating instructions and the current recognised rules of engineering�...
Method of operation Controlling connected appliances / operating mode To control the room temperature, the CP plus controls either the connected heater or air conditioning system� When a new or replacement appliance (Combi (D), air conditioning system or Truma iNet Box) is connected to the bus system, repeat the procedure described in “Ini-...
Aventa air conditioning systems� with good circulation and not on the vehicle • ceiling� Truma Partners are trained in the correct installation of automatic climate control� You will find our authorised dealers / Truma Partners at www�truma�com� Time control In addition to normal operation, a time switch can al- so be used�...
Method of operation Truma CP plus Using CP plus and IR remote control Use only the CP plus time switch to define the start and end time of a required period� for the air conditioning system together Using CP plus and iNet Box together...
Menu control Truma CP plus Menu control When a new command is entered via the Truma App, the connected appliances and the Truma CP plus are activated with the specified values� When a new or replacement Truma iNet Box is con- nected to the bus system, repeat the procedure de- scribed in “Initial start-up”...
Menu control Truma CP plus Selecting a menu item Symbol Menu item Setting the room temperature The backlit screen shows the menu level� The first icon flashes� Selecting the hot water level Selecting the energy type Selecting the fan level...
Truma CP plus Menu control and change setpoints and parameters; press the button Turn the rotary push button to save these� Selected menu items flash� clockwise Menu is run through from left to • right� Turn the rotary push button clockwise Increase values (+)�...
Operation Truma CP plus Displaying saved settings / activated After confirmation, the Truma CP plus initialises itself� “INIT ��” appears on the display while this is in pro- functions gress� The appliances that are found are stored in the Truma CP plus�...
(This is unneces- If you park your vehicle in an enclosed space or sary if just one appliance is connected to the CP plus�) if you will not be using it for an extended period,...
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16 – 31 °C (1 °C increments) system or automatic climate control modes are deacti- (AC) vated and blanked out on the CP plus� With automatic Automatic climate 18 – 25 °C (1 °C increments) climate control, the Combi / Combi D is deactivated, control (AUTO) even in heating mode�...
Operation Truma CP plus Press the rotary push button to go to the setting Symbol Displayed Description level� text Select desired level with rotary push button� AUTO Air conditioning system is (Circulated set to automatic: circulated Press the rotary push button to confirm the value�...
Operation Truma CP plus Selecting the energy type Symbol Operating Energy type mode The energy supply for the heater can be adjusted to GAS / Gas / Diesel suit the available energy types (parking area, camp site, DIESEL while driving)�...
(HEATER), air conditioning (AC) or automatic The heater switches automatically to electric mode� climate control (AUTO)� The CP plus activates the fan of the appliance that is operating at the time (heater or For the heater to operate in mixed mode again, rec- tify the cause of the malfunction and acknowledge air conditioning)�...
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Fan is switched off� (can be ed, all functions associated with air conditioning system selected only if no appli- or automatic climate control modes are deactivated and ance is in operation)� blanked out on the CP plus� 34020-01385 · 00 · 07/2022...
Brightness selectable in 5 levels� Switch off the CP plus to prevent the heater – Switch lighting off� being switched back on by the Truma App or Tap the rotary push button to confirm the value� the time switch (see “Switching on/off”)�...
Operation Truma CP plus 6.12 Service menu Enter the start time Set the hours then the minutes with the rotary push Use the rotary push button to select in the menu button� line� In 12h mode: A: am, P: pm�...
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Default setting: °C (Celsius)� Example: Set room temperature 23 °C; Changing the background lighting AC SET = 2 °C Change the background lighting of the Truma CP plus in Setpoint for air conditioning = 25 °C • 10 levels� Default setting: +1 °C (Celsius)� 12 h / 24 h mode Display time in 12 h (a�...
T = Truma iNet Box Default setting (RESET) The reset function resets the CP plus to the default setting� This deletes all settings� Newly connected appli- ances are detected and stored in the Truma CP plus� Truma App with iNet Box Switch on the power supply, 12 V for Truma CP plus...
Warning Truma CP plus Warning In this case, the warning is not acknowledged in the CP plus and the warning symbol remains� The affected indicates that an operating parameter has reached appliance remains in warning status� Other connected ap- an undefined state� In this case the appliance concerned pliances can be operated�...
CP plus TIN bus In this case, the malfunction is not acknowledged in the CP plus and the warning symbol remains� The appliance CP plus CI BUS TIN bus, CI bus remains in malfunction state� Other connected appli- Power supply 8 V – 16�5 V DC ances can be operated�...
Truma CP plus 13 Troubleshooting guide If these measures do not remedy the malfunction or if fault codes are displayed that you cannot find in the troubleshooting guide, contact Truma Service. 13.1 Heater Combi / Combi E (H) Fault Cause...
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Troubleshooting guide Truma CP plus Fault Cause Remedy code E 112 H, Flame out or not detected, Check that the gas supply has the correct operating pressure E 121 H, Flame unstable during operation, (see Fault catalogue, gas supply) E 122 H,...
Truma CP plus Troubleshooting guide Fault Cause Remedy code W 408 H Gas supply interrupted in mixed mode Check that the gas supply has the correct operating pressure� Start the heater in gas mode, acknowledge the fault and switch to...
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Troubleshooting guide Truma CP plus Fault Cause Remedy code E 122 H Lack of fuel due to low tank level, tank is empty and / or Ensure 12 V power supply under load at appliance input / check for •...
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Troubleshooting guide Truma CP plus Fault Cause Remedy code E 162 H Window above cowl open (window switch) Close window above cowl W 163 H One of the temperature switches has opened Allow the heater to cool� If this occurs frequently, contact...
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Troubleshooting guide Truma CP plus Fault Cause Remedy code W 303 H, Risk of low voltage� Battery voltage too low < 10�8 V Ensure 12 V power supply under load at appliance input / check for • W 411 H...
Troubleshooting guide Truma CP plus 13.3 Air conditioning system (A) Fault Cause Remedy code 8 A, IR receiver unplugged or cable broken Check the connection of the IR receiver W 8 A E 17 A, Voltage dip at 230 V power supply...
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Should problems occur, please contact the Truma Service Centre or one of our authorised service partners (see www.truma.com). In order to avoid delays, please have the unit model and serial number ready (see type plate). Service Truma Gerätetechnik GmbH & Co� KG Wernher-von-Braun-Straße 12...
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