Stanley WSL141, Руководство по установке, эксплуатации и техническому обслуживанию

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4.3 Connection with the external device
The connection between the internal and external device is performed via refrigerant pipes.
CAUTION
The pipeline and electrical cables have to be protected with heat and waterproof insulation
in a protective pipe. This prevents the pipe connections soaking in cases of high
groundwater or rainwater and with it intensive draining of heat into its surroundings.
4.3.1 Refrigeration connection - Gas and liquid connection
The pipe connection between the external and internal device can be made by laying the pipes in two
ways:
A inside two separate ribbed protective pipes,
B in one joint ribbed protective pipe.
A B
P16 Fill with waterproof polyurethane
foam
P20 Ribbed protective pipe min.
ɸ 75
P17 Protective pipe for external sensors
and communication cable
P21 The ribbed protective pipe for the power cable
depends on the dimension of the supply cable
P18 Copper pipe Cu P22 Ribbed protective pipe min.
ɸ 150
P19 Insulation min. 13 mm.
Preparation of the refrigeration pipe
Prepare the refrigeration pipe in steps. Unsuitably made joints are one of the main reasons for leakage,
the joints must thus be made thoroughly and in accordance with the listed steps.
STEP 1: Cutting of the pipe
Use a pipe cutter which does not produce chips to cut the pipe.
Determine the distance between the outdoor and indoor device.
Cut the pipe to appropriate length, and connect the internal and external device.
Make sure that the pipe after soldering / screw driving not be tense.