13
Subject to technical amendments without notice | 83059700iUK – Translation of the original operating manual | ait-deutschland GmbH
2. Vent heat pump on the condenser and on the
desuperheater if installed.
1 Desuperheater venting
2 Condenser venting
3 Condenser venting
4 Condenser emptying
9 Insulate hydraulic connections
Insulate hydraulic lines in accordance with local
regulations.
1.
Open shut-off devices.
2. Perform a pressure test and check for leaks.
3. Insulate external piping on site.
4.
Insulate all connections, fittings and pipes.
5. If the device is used for cooling below 18°C, the
insulation must be vapour diffusion-tight.
6. If desuperheating is used on the device,
the insulation on the corresponding lines
and components must be able to withstand
temperatures up to 90°C.
7. Isolate the cones drain in a frost-proof manner
10
Set the overflow valve
NOTE
●
The activities in this section are only
necessary for the integration of storage
tanks in series .
●
Complete the work steps quickly, otherwise
the maximum return temperature may be
exceeded and the heat pump switches to
high-pressure fault.
● Turn the adjusting knob at the overflow
valve to the right to increase the
temperature difference (the spread), turn it
to the left to reduce it.
System is running in heating mode (ideally in cold
condition).
1. In case of low heating curve: Set the system to
"Forced heating" (
operating manual of the
heating and heat pump controller).
2.
Shut off valves to the heating circuit.
3.
Ensure that the total flow is routed via the overflow
valve.
4.
Read out the flow and return temperature at the
heating and heat pump controller (
operating
manual of the heating and heat pump controller).
5.
Turn the adjusting knob (1) of the overflow valve
(2) until the spread between the flow and return
temperature is set as follows:
Outdoor
temperature
Recommended
setting
-10 °C
4 K
0 °C
5 K
10 °C
8 K
20 °C
9 K
30 °C
10 K
1 Rotary-push button
2 Overflow valve
6. Open valves to heating circuit.
7. Reset the heating and heat pump controller.
