6 | © Danfoss | Produced by Danfoss Redan A/S | 2020.08
145X2039
AN352656760258en-000101
Start-up
The shut-off valves should be opened and the unit observed as it enters
service. Visual checking should confirm temperatures, pressures, acceptable
thermal expansion and absence of leakage.
If the heat exchanger operates in accordance with design, it can be put
to regular use.
After water has been added to the system and the system has been put
into operation, re-tighten ALL connections. Check that all hairpins in click
connections are completely pushed in.
01. Fix the water heater on a solid wall with two strong bolts, screws,
expansion plugs or the like.
02. Close all shut-off valves, before the water heater is connected to
the household piping.
03. IMPORTANT! Tighten all connections, as vibrations during transport
and handling may have caused leaks.
04. For systems with safety valve, a discharge outlet must be established
in compliance with local regulations.
05. If the household plumbing system includes hot water recirculation
the water heater must be connected to the hot water recirculation
system. Remember always to mount safety valve on the DCW inlet. The
pump must be connected to power supply, but do not switch on the pump.
06. Carefully open the ball valve on DH supply. Subsequently open the
remaining ball valves.
07. Check the water heater and the household piping carefully for any
leaks.
08. Perform pressure testing of the household installation in compliance
with local regulations.
09. Switch on circulation pump (if any).
10. Finally adjust the water heater according to the enclosed installation
instructions.
IMPORTANT! Heating and cooling of the system may cause leaks.
Therefore tightening of all connections may be necessary after
commencement of operation.
4. START-UP
Re-tightening of connections
After water has been added to the system and the sys-
tem has been put into operation, re-tighten
ALL
con-
nections.
Pump
The pump must be switched off during system fill.
Mounting and installation guide
EvoFlat WSS Water Heaters
