Final Work - Dimplex LAK 3IMR Installation And Operating Instruction

English
7.2.2 Indoor unit
Two supply cables must be connected to the indoor unit: The
power supply to the heat pump and the control voltage for the in-
tegrated heat pump manager (see Appendix Cap. 3.5 on pag.
XV). (Load: 3~; 1x 5-core; control: 1~; 1x three-core) The VDE di-
rectives and regulations and local conditions must be taken into
account in the design and installation of the cables.
With the heat pump combination with the 6 kW or 9 kW outdoor
unit, the power supply can take place with two separate supply
cables (2x 1~/N/PE; 230 VAC; 50 Hz) via load distribution. Oth-
erwise, the power supply always takes place with one cable (3~/
N/PE; 400 VAC; 50 Hz).
NOTE
The positions of the copper link cables in the terminals for the power
supply must be complied with. In factory default, the copper link cables
come connected correctly for a single supply cable. For the 6 kW or 9 kW
units and when using two supply cables, the positions of the copper link
cables must be changed (See "Last / Load / Puissance LAK 6IMR /
LAK 9IMR / LAK 14ITR" on page XV.).
The supply cable for the output section of the heat pump (up to
5-core) is fed from the electricity meter of the heat pump via the
utility blocking contactor (if required) into the heat pump (see
heat pump operating instructions for supply voltage). An all-pole
disconnecting device with a contact gap of at least 3 mm (e.g.
utility blocking contactor or power contactor) and an all-pole cir-
cuit breaker with common tripping for all external conductors
must be installed in the power supply for the heat pump (tripping
current and characteristic in compliance with the device informa-
tion). The connection takes place on X1.
The supply cable (1~L/N/PE~230 V, 50 Hz) for the heat pump
manager must have a continuous voltage. For this reason, it
should be tapped upstream from the utility blocking contactor or
be connected to the household current, because otherwise im-
portant protection functions could be lost during a utility block.
The correct control voltage must be ensured according to the
general information leaflet/rating plate. The connection takes
place on X2.
The utility blocking contactor (K22) with 3 main contacts (1/3/5 //
2/4/6) and an auxiliary contact (NO contact 13/14) should be di-
mensioned according to the heat pump output and must be sup-
plied by the customer. The NO contact of the utility blocking con-
tactor (13/14) is looped from terminal strip X3/GND to connector
terminal N1-J7/DI3. CAUTION! Extra-low voltage!
For detailed instructions on how to connect the external compo-
nents as well as how the heat pump manager functions, please
refer to the device connection diagram and the operating instruc-
tions supplied with the heat pump manager.
The 2nd heat generator is connected with a 6 kW heat output in
factory default. To reduce the output to 4 kW or 2 kW, one or both
of the two copper link cables must be removed from terminal X7
(see circuit diagram).
For detailed information, see circuit diagrams in the attachment.
The electric cables can be fed into the unit from below (in the re-
frigeration connection area).
EN-12

7.3 Final work

Once the pipes and electric cables have been connected, the
pipes must be bent and a number of tests carried out. The leak
test must be carried out with particular care, as a refrigerant leak
results in a direct reduction in output.
Leaks are also difficult to identify once the installation is com-
plete.
7.3.1 Pipe bends
Bend the pipe by covering the connection cable and refrigerant
pipe (between the indoor and outdoor unit) with insulation and fix
the insulation in place with two adhesive tapes.
1) Fix the refrigerant pipe, mains cable and connection cable
with adhesive tape from bottom to top. Fix the bound pipe-
work along the wall.
2) Form a siphon to prevent water from entering the chamber
and electrical components.
3) Fix the pipework to the wall using clamps or similar.
Wrap the pipework in adhesive tape
1) Fix the pipes, mains cable and connection cable with adhe-
sive tape from bottom to top. If they are fixed from top to bot-
tom, rain could enter into the pipes or cables.
2) Fix the bound pipework along the external wall with clamps
or similar.
3) A siphon prevents water from entering the electrics.
452162.66.09 · FD 9703
LAK 3IMR - LAK 14ITR
www.dimplex.de