Mounting and installation guide
EvoFlat WSS Water Heaters
© Danfoss | Produced by Danfoss Redan A/S | 2020.08 | 13
AN352656760258en-000101
145X2039
11. CONTROLS
TPC-M multi-functional controller
Multi-functional controller with integrated zone valve, air vent, differ-
ential pressure and DHW temperature controller.
DHW temperature control
By turning the handle for temperature temperature in (+/MAX) direc-
tion the temperature is increased, by turning it in (-/MIN) direction the
temperature is decreased.
Setting range 40-60°C.
DHW temperature should be adjusted to 45-50 °C, as this provides op-
timal utilization of DH water. At DHW temperatures above 55 °C the
possibility of lime scale deposits increases significantly.
Differential pressure controller
The differential pressure controller equalizes the high fluctuations in
pressure arriving from the heat source, ensuring constant operating
pressure
Zone valve
The TPC-M multi-functional controller contains a zone valve. The
TWA-Q/NC actuator can be mounted on the zone valve. The transport
protection on the TWA-QZ/NC actuator must be removed before use.
Air vent
The station should be vented during start up.
Safety valve
The purpose of the safety valve is to protect the flat station from
excessive pressure.
The blow-off pipe from the safety valve must not be closed. The
blow-off pipe outlet should be placed so that it discharges freely
and it is possible to observe any dripping from the safety valve.
It is recommended to check the operation of safety valves at inter-
vals of 6 months. This is done by turning the valve head in direction
indicated.
