5. Turn theadjustingknob (2) oftheoverowvalve
(1) until the temperature drop between the ow
and return temperature is set as follows:
–
at heat source temperature 0 °C: 8 K
–
at heat source temperature 10 °C: 10 K
2
1
6. Open valves to heating circuit.
7. Reset the heating and heat pump controller.
10 Commissioning
NOTE
The rst lling and initial startup of the
domestichotwater tankmustbe carriedout
byqualiedpersonnel.
Relevant planning & design data of the system is
documented in full.
Thecompetentenergysupplierhasbeennotied
of operation of the heat pump system.
System is air-free.
Installationcheckusingthegeneralchecklisthas
been completed successfully.
1. Ensure that the following points are fullled
completely:
–
Right-hand (clockwise) rotating load infeed
eldisavailableatthecompressor.
–
Heating station is installed and mounted
according to this operating manual.
–
The electrical installation has been carried out
properly according to this operating manual
and local regulations.
8 Insulate hydraulic
connections
1. Insulate heating circuit, heat source and domestic
water pipes according to the local regulations.
2. Open shut-off devices.
3. Performapressuretestandcheckforleaks.
4. Insulate the internal piping of the module box with
the insulation material from the separate pack
included.
5. Insulate external piping on site.
6. Insulateallconnections,ttingsandpipes.
7. Insulate heat source so that it is vapour-diffusion
tight.
8. Insulate the heating circuit of units with cooling
vapour-diffusion tight too.
9 Settheoverowvalve
NOTE
● The activities in this section are only
necessaryforin-linetankintegration.
● Completetheworkstepsquickly,otherwise
the maximum return temperature can be
exceeded and the heat pump switches to
high-pressure fault.
● Turn the adjusting knob at the overow
valve to the right to increase the
temperature difference (the temperature
drop), 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. Ensurethatthetotalowisroutedviatheoverow
valve.
4. Read out the ow and return temperature at the
heating and heat pump controller ( operating
manual of the heating and heat pump controller).