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LA 60TUR+
3
Scope of supply
3.1 Basic device
The heat pump contains the components listed below.
The refrigerating circuit is "hermetically sealed". It contains the
Kyoto protocol approved fluorinated refrigerant R417A with a
GWP value of 2235. It is CFC-free, non-ozone depleting and
non-combustible.
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11
2
1)
Evaporator
2)
Liquefier
3)
Ventilator
4)
Switch box
5)
Compressor 1
6)
Compressor 2
7)
Filter dryer
8)
Expansion valve
9)
Collector
10) Hot water liquefier
11) Dirt trap
3.2 Switch box
The switch box is located in the heat pump. It can be swung out
after removing the lower front cover and loosening the fastening
screw located in the upper right-hand corner.
The switch box contains the supply connection terminals as well
the power contactors and the soft starter unit.
The plug connectors for the control line are located on the switch
box panel near the pivotal point.
EN-4
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452163.66.40 · FD 9304
3.3 Heat pump manager
Use the heat pump manager included in the scope of supply to
operate the air-to-water heat pump.
The heat pump manager is a convenient electronic regulation
and control device. It controls and monitors the entire heating
system based on the external temperature, as well as domestic
hot water preparation and safety systems.
The customer must install the external temperature sensor,
which is included in the scope of supply of the unit heat pump
and heat pump manager together with the necessary fixing ac-
cessories.
The enclosed operating instructions describe the function and
use of the heat pump manager.
4
Accessories
4.1 Electrical connection line
The electrical connection line is an accessory required for the
functioning of the system. It connects the heat pump to the heat
pump manager and it is available in various lengths.
4.2 External four-way reversing
valve
The external four-way reversing valve (Y12) enables optimised
heating and cooling operation of the reversible air-to-water heat
pump. The reversal of the flow direction ensures an optimum flow
through the heat exchanger in the heat pump in heating opera-
tion as well as in the opposite direction in cooling operation.
The electrical actuator required for the automatic switching is
controlled by the heat pump manager. (Max. permissible switch-
ing current 2A).
If the external four-way reversing valve is not used, the heat out-
puts and the COPs are reduced as specified in the device infor-
mation. With heating-only operation without an external four-way
valve, the hydraulic connection should be carried out such that
the heat exchanger is loaded in the opposite direction (observe
note in section 7.2 „Connection on heating side").
The external four-way reversing valve with a set time of max. 30
seconds, which is available as special accessory, ensures
switching of the water flow over the complete range of operating
temperatures without any mixing losses.
The hydraulic and electrical circuit diagrams in the appendix
show the basic design. Detailed installation instructions are pro-
vided with the four-way reversing valve.
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