Specifications

25
We reserve the right to modify technical specifications without prior notice.
83053100bUK © Alpha-InnoTec GmbH
Insulating the hydraulic
connections
NOTICE.
Insulate the heating circuit and the heat source
according to local applicable standards and di-
rectives.
The angle ball valves of the connections on the module
box must be opened.
Check seals of all hydraulic connections. Conduct
pressure test…
Remove insulation material for internal piles from
the extra box…
Insulate all connections, angle ball valves, vibra-
tion decouplers, connections and lines of the heat
source in the unit so that they are vapor diffu-
sion-tight…
For units with cooling function, insulate angle ball
valve and connecting pipe so that they are vapor
diffusion-tight…
Overow valve
inspecting and setting up the overflow valve
NOTICE.
Make sure to perform the following steps within
a relatively short time. The heat pump switches
to high-pressure fault if the maximum return
ow temperature is exceeded.
Make sure that the system is running in the heating
mode (ideally in cold condition)…
With the heating curve set low, switch the system
to “Forced heating”…
Operating manual of the heating and heat pump
regulator.
Shut off valves to heating circuit…
Make sure that the volume ow is channeled 100%
through the overow valve…
Read the forward ow and return ow temperatures
in the heating and heat pump regulator…
Operating manual of the heating and heat pump
regulator.
Turn the adjusting knob of the overow valve until
the temperature difference (= spread) between the
forward and return ow is between 5 and 9 K…
1 Adjusting knob
2 Overow valve
NOTICE.
Turning the adjusting knob:
– clockwise = increases spread.
– counterclockwise = decreases spread.
Open valves to heating circuit.
Reset the heating and heat pump regulator.