Acond PRO-N - Cleaning Filters in the Heating System

Heat pumps AIR / WATER
Operation manual 39
Expansion vessel
Ball valve
Drain valve
For pressure control:
• turn off the heat pump
• close ball valve 1 above expansion vessel (see Figure 15)
• release the drain valve cover 2, open the drain valve - be careful, up to several litres of
water may leak from the drain valve tube, have a large enough container ready
• use a pressure gauge (e.g. to measure tyre air pressure) to measure the air pressure in
the expansion tank air bag
• if the air pressure does not match the data on the expansion tank label, refill the bag with
air
• close drain valve 2, screw valve cover
• open ball valve 1 above expansion vessel
• check the water pressure in the system on the pressure gauge 3
• if the pressure on the pressure gauge 3 does not match the information on the
expansion tank label, refill the water in the system
• turn on the heat pump
5.5 Cleaning filters in the heating system
Turn off the heat pump before cleaning the filters in the heating circuit!
Figure 15 Expansion vessel connection