Immergas MAGIS M4-30 Use And Installation page 43

Pump operation and space heating and cooling.
e unit will switch to heating or cooling mode depending on the setting made on the room thermostat. When the room
thermostat (S20) demands space heating/cooling, the pump is activated and the unit (1) switches to heating/cooling mode.
e unit (1) will run to reach the required cold/hot water outlet temperature. In cooling mode, the 3-way valve (19) closes
so that cold water does not ow through the oor heating circuits (FHL).
CAUTION
MOSTAT in the control panel. (Chap. 10.5 Settings on eld/ROOM THERMOSTAT).
wired following method A according to that described in Chap. 9.7.6 Connection for other components/For the room
thermostat.
e wiring of the 3-way valve (19) is di erent for an NC (normally closed) and NO (normally open) valve!
Make sure to connect to the correct terminal numbers as indicated in the connection diagram.
in the control panel.
• Domestic hot water heating.
How domestic hot water is heated is described in Chap. 8.5 Application 2.
e room thermostat must be
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