E-6
English
8
8 Commissioning
8.1 General Information
To ensure that start-up is performed correctly, it should only be
carried out by an after-sales servic e technici an authorise d by the
manufacturer. This ma y be a condi tion f or exten din g the guaran -
tee (see Warranty).Start-up should be carried out in heating op-
eration.
8.2 Preparation
The following items need to be checked prior to start-up:
The heat pump must be fully connected, as described in
Chapter 7.
The heat source system and the heating circuit must have
been filled and checked.
The dirt trap must be inserted in the brine inlet of the heat
pump.
All valves tha t could impair proper f low in the brine and he at-
ing circuits must be open.
The heat pump controller must be adapted to the heating
system in accordance with the controller’s operatin g instruc -
tions.
8.3 Start-up Procedure
The heat pump is started up via the heat pump controller.
ATTENTION!
The heat pump must be started up in accordance with the installati on and
operating instructions of the heat pump controller.
If an overflow valve is fitted to assure the mi nimum heating water
flow rate, the valve must be set in accordance with the require-
ments of the respective heating system. Incorrect adjustment
can lead to faulty operation and increased energy consumption.
We recommend carrying out the following procedure to correctly
adjust the overflo w val v e:
Close all of the heating circuits that may also be closed during
operation (depending on the type of heat pump usage) so that
the most unfavourab le operatin g state - with respect to th e water
flow rate - is achieved. This normally means the heating circuits
of the rooms on the south and west sides of the bui lding. At lea st
one heating circuit must remain open (e.g. bathroom).
The overflow valve should be opened far enough to produce the
maximum temperature spread between the heating flow and re-
turn flow list ed in the table below for th e current heat source te m-
perature. The temperature spread should be measured as close
as possible to the heat pump. The heating element of mono en-
ergy systems should be disconnected.
Any faults occurring during operation are displayed on the heat
pump controller an d can be corrected as described in the o perat-
ing manual of the heat pump controller.
Heat source
temperature Max. temperature spread
between heating flow and return
flow
From To
-5° C 0° C 10 K
1° C 5° C 11 K
6° C 9° C 12 K
10° C 14° C 13 K
15° C 20° C 14 K
21° C 25° C 15 K