Electrical Connection; Start-Up; General; Preparation - Dimplex LA 35TUR+ Instructions D'installation Et D'utilisation

7.3
Antifreeze
A method of manual drainage (see illustration) should be
provided for heat pumps which are exposed to frost. The
antifreeze function of the heat pump manager is active whenever
the 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
cannot be detected (holiday home).

7.3 Electrical connection

A standard four-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
consumption 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 connecting,
ensure that the incoming 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
instructions (16 A fuse).
The control lines (not included in the scope of supply) have
rectangular 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
signal and/or extra-low voltage level.
EN-6
All manuals and user guides at all-guides.com
More detailed information can be found in the operating
instructions of the heat pump manager.
For detailed information, see circuit diagrams in the appendix.
8

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. This may be a condition for extending the
guarantee. (see warranty service)
Start-up should be carried out in heating operation.

8.2 Preparation

The following items need to be checked prior to start-up:

8.3 Procedure

The heat pump is started up via the heat pump manager.
Adjustments should be made in compliance with the instructions.
At hot water temperatures under 7° C, start-up is not possible.
The water in the buffer tank must be heated to a minimum of
18 °C with the second heat generator.
To ensure a problem-free start-up, the following procedure is to
be implemented:
1)
2)
3)
4)
5)
6)
7)

Start-up

All of the heat pump connections must be installed as
described 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
operating instructions.
Ensure the condensate outflow functions properly.
Close all consumer circuits.
Ensure that the heat pump has the correct water flow.
Use the controller to select the automatic operating mode.
In the special functions menu, start the "Start-up" program.
Wait until a return temperature of at least 25 °C has been
reached.
Now slowly reopen the heating circuit valves in succession
so that the heating water flow is constantly raised by slightly
opening the respective heating circuit. The heating water
temperature in the buffer tank must not be allowed to drop
below 20 °C during this process. This ensures that the heat
pump can be defrosted at any time.
When all heat circuits are fully open and a return
temperature of at least 18° C is maintained, set a minimum
volume flow quantity on the overflow valve (where present)
and on the heat circulating pump.