Antifreeze
Heat pump systems, which cannot be guaranteed to be frost-
free, should be equipped with a drainage option (see Fig.). The
antifreeze function of the heat pump manager is active whenever
the heat pump manager and the heat circulating pump are ready
for operation. The system has to be drained if the heat pump is
taken out of service or in the event of a power failure. The heating
circuit should be operated with a suitable antifreeze if heat pump
systems are implemented in buildings where a power failure can-
not be detected (holiday home).
7.3 Electrical connection
A standard five-core cable is used for connecting the heat pump
to the power supply.
The cable must be provided by the customer. The conductor
cross section is selected in accordance with the power consump-
tion of the heat pump (see appendix Device information) and the
applicable VDE (EN) and VNB regulations.
An all-pole disconnecting device with a contact gap of at least
3 mm (e.g. utility blocking contactor or power contactor) as well
as a 3-pole circuit breaker with common tripping for all external
conductors must be installed in the power supply (tripping current
in compliance with the device information). When installing fault
current protection, the correct version (RCD type B) must be
used for DC components, which could be created by electronic
equipment, for example. When connecting, ensure that the in-
coming supply has a clockwise rotating field.
Phase sequence: L1, L2, L3.
ATTENTION!
Ensure that there is a clockwise rotating field: With incorrect wiring the
starting of the heat pump is prevented. A corresponding warning is
indicated on the display of the heat pump manager (adjust wiring).
The control voltage is supplied via the heat pump manager.
The heat pump manager has a 230 V AC-50 Hz power supply
and is connected in compliance with its own operating instruc-
tions.
www.dimplex.de
ATTENTION!
The control cable is essential for the operation of air-to-water heat pumps
for outdoor installation. The control cable and mains cable are to be
routed separately. It is not permissible for the customer to extend the
control cable.
Three separate lines are used as control lines. (These are not in-
cluded in the scope of supply of the heat pump). Two of these ca-
bles are equipped with rectangular plug connectors which must
be connected to the heat pump manager and to the underside of
the switch box. One of these two cables is for the 230 V voltage
level, the other for the extra-low voltage level. The third cable
serves as a communication connection between the heat pump
manager and the electronic expansion valve (N23), and must be
connected to the "field card" on the heat pump manager and to
the expansion valve driver (N23/Network) in the switch box of the
heat pump.
The control lines (not included in the scope of supply) have rec-
tangular plug connectors on both ends. One end is connected to
the heat pump manager, and the other end is connected to the
switch box in the heat pump. The plug connections to the heat
pump are located on the bottom of the switch box.
Two separate lines are used as control lines. One of the lines is
designed for the 230 V control voltage level, the other for the sig-
nal and/or extra-low voltage level.
More detailed information can be found in the operating instruc-
tions of the heat pump manager.
For detailed information, see circuit diagrams in the appendix.
8
Start-up
8.1 General
To ensure that start-up is performed correctly, it should only be
carried out by an after-sales service technician authorised by the
manufacturer. These measures can also include an additional
warranty under certain conditions (see Warranty).
8.2 Preparation
The following items need to be checked prior to start-up:
All of the heat pump connections must be installed as de-
scribed in chapter 7.
All valves that could impair the proper flow of the heating
water in the heating circuit must be open.
The air intake and air outlet paths must be clear.
The fan must turn in the direction indicated by the arrow.
The settings of the heat pump manager must be adapted to
the heating system in accordance with the manager's oper-
ating instructions.
Ensure the condensate outflow functions properly.
452163.66.40 · FD 9304
LA 60TUR+
EN-7