OPERATION General information OPERATION Other symbols in this documentation Note General information is identified by the adjacent symbol. f Read these texts carefully. General information The chapters "Special Information" and "Operation" are intended Symbol Meaning for both the user and qualified contractors. Material losses The chapter "Installation"...
OPERATION Appliance compatibility Troubleshooting WARNING Injury f For safety reasons, only operate the appliance with If you cannot remedy the fault, notify your qualified contractor. the casing closed. To facilitate and speed up your enquiry, please provide the serial number from the type plate. The type plate is located at the front top, on the right or left hand side of the casing.
INSTALLATION Safety INSTALLATION Installation General information Safety Note We do not recommend installing the appliance in wet Only a qualified contractor should carry out installation, commis- rooms. Wet rooms include rooms used, for example, for sioning, maintenance and repair of the appliance. washing or drying clothes.
INSTALLATION Installation Wall mounting ASL-HM General Minimum clearances HM (S) | HM(S) Trend without ASL-HM ≥400 ≥1000 f Position the installation template horizontally at the required installation location. The installation template can be found in the cardboard box. f Mark the holes on the wall. Please note that the bottom two holes are only required in combination with the ASL-HM.
INSTALLATION Installation Hydraulic connection HM(S) | HM(S) Trend with ASL-HM First mount the ASL-HM connector block on the wall. Material losses The heating system to which the appliance is connected must be installed by a qualified contractor in accordance with the water installation drawings that are part of the technical guides.
INSTALLATION Installation Filling the system Venting the appliance 9.6.1 General information Multifunction assembly (MFG) Material losses Never switch on the power before filling the system. Material losses High flow rates or water hammer can damage the ap- pliance. f Fill the appliance at a low flow rate. In the delivered condition, the diverter valve of the MFG is posi- tioned at the centre, enabling the heating and DHW circuits to be filled evenly.
INSTALLATION Power supply Safety valve 10. Power supply WARNING Electrocution Carry out all electrical connection and installation work in accordance with national and regional regulations. WARNING Electrocution The connection to the power supply must be in the form of a permanent connection. Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3 mm contact separa- tion.
Should the heat pump suffer a fault that prevents its contin- mode ued operation, the heating output will be covered by the elec- tric emergency/booster heater. Electrical connection 3 phase HM | HM Trend XD02 Electric emergency/booster heater (DHC) L1, L2, N1, N2, PE Connected load Terminal assignment 2.9 kW...
INSTALLATION Power supply 10.3 WPM heat pump manager Safety extra low voltage X1.18 CAN (connection for FET remote control and CAN B ISG Internet Service Gateway) WARNING Electrocution Only components that operate with safety extra low voltage (SELV) and that ensure secure separation from X1.19 CAN (connection for heat pump and WPE heat the mains voltage supply may be connected to the low...
INSTALLATION Power supply 10.4 Sensor installation 10.4.2 Heat metering with the WPL 07-17 ACS classic / HPA-O 3-8 CS Plus 10.4.1 Return temperature measuring Note f Connect an additional return sensor in combination with the f Install the following immersion sensor for the heat following heat pump types: pump, in addition to the sensor described in chapter - HPA-O 3-8 CS Plus (only in combination with a buffer...
INSTALLATION Power supply 10.6 Fitting the appliance cap If no ASL-HM connector block is used: f Fit the appliance cap in reverse order to the instructions pro- vided in chapter “Removing the appliance cap”. Cable with connector 1 Connection 1 Immersion sensor 2 Connector from the programming unit f Solder the sensor well provided onto the common return f Fit the connector from the programming unit in the control...
INSTALLATION Commissioning 11. Commissioning f Check whether the heating system is charged to the correct pressure. f Have you closed the air vent valve of the multi-function as- Material losses sembly (MFG) again after venting? To prevent the temperature falling below the dew point, f Have you placed and connected the outside temperature sen- the casing must be closed during operation and undam- sor and the return sensor correctly?
INSTALLATION Troubleshooting 12. Troubleshooting 12.1 Resetting the high limit safety cut-out If the heating water temperature exceeds 90 °C, the electric emer- WARNING Electrocution gency/booster heater shuts down. f Isolate the appliance from the power supply when carrying out any work. Material losses When removing the appliance cap, pull the connection plug of the programming unit out of the control panel.
INSTALLATION Specification 14.4 Data table HM Trend HMS Trend 233010 232805 233827 233826 Power consumption Power consumption, emergency/booster heater Application limits Max. permissible pressure Min. application limit on the heating side °C Max. cooling application limit on the heating side °C...
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GUARANTEE | ENVIRONMENT AND RECYCLING Guarantee The guarantee conditions of our German companies do not apply to appliances acquired outside of Germany. In countries where our subsidiaries sell our products a guarantee can only be issued by those subsidiaries. Such guarantee is only grant- ed if the subsidiary has issued its own terms of guarantee.
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