Section 4 - Installation
INSTALLATION
38 Installation and Maintenance
4.1.10 Routing the Electrical Cables
Cables that are connecting to the heat pump are to be routed
through the cable glands to the circuit board as shown in
Figure 39.
ᘐ CAUTION: When routing cables, care should be
taken to make sure that water is not able to run down
the cables and enter the product by making sure that the
cable is routed downwards after leaving the product and
that the cable glands are tightly tted.
When making connections to the electrical terminals make
sure that there is no exposed copper wire and connections a
made in accordance with current IET regulations..
Supply and communication lines are to be installed as
shown in Figure 39, and Figure 40. Make sure that the
communication lines are attached by the securing clip below
the terminal, and that the control box grommets are secured
using the tie-wraps supplied in the installers pack.
Figure 39. Routing the Cables
Communication cable to control box
Permanent power supply (230V)
Multi core cables should be stripped back by at least 60mm
to allow for easy connection and to reduce strain on the
terminals. Once all connections have been made, the cables
are to be secured using the cable securing clamps at the
base of the control board, to prevent stress on the terminals.
It is important to maintain the neutral-phase polarity of the
heat pump. The earth continuity must be maintained, and the
earthing wire is to be longer than the other wires.
ᘐ WARNING: Failure to do electrical safety tests to
verify the circuit has a higher risk of damage to the
products and electric shock.
Upon completion of the electrical connections, electrical
safety tests are to be done to verify the integrity of the circuit.
These tests are to be done by a competent electrician in
accordance with IET guidelines.
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