Dimplex LA 6TU, Installation And Operating Instructions Manual

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www.dimplex.de 452163.66.36 · FD 9110 EN6
English
LA 6TU
Antifreeze
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 heat pump manager
and the heat circulating pump are ready for operation. If the heat
pump is taken out of service or in the event of a power failure, the
system has to be drained. 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).
6.3 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 connecting, ensure that the incoming supply has a clock-
wise rotating field.
Phase sequence: L1, L2, L3.
ATTENTION!
Ensure the rotary field is clockwise when connecting the mains cables (if
the rotary field is not clockwise, the heat pump will not work properly, is
very loud and may cause damage to the compressor).
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 (see heat pump manager operating instructions).
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.
Three separate lines are used as control lines: One of the lines is
designed for the 230 V control voltage level, one for the signal
and/or extra-low voltage level and one is a bus cable for commu-
nication with the electronic expansion valve.
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.
7 Start-up
7.1 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 guaran-
tee (see warranty service).
7.2 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 6.
„ 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 ventilator must turn in the direction indicated by the ar-
row.
„ 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.