15
GB
4.3.5 - ROUTING OF CABLES
• To avoid problems related to electromagnetic disturbances, avoid routing control cables near power cables.
• Pass the cables through the cable glands.
• Route the control cables on the right side of the electric board.
• Pass the pilot wire (230 V), if used, on the left side of the electric board.
BUS
Outside air temperature sensor
ECO signal for remote controls
+
Load shedding signal
Outdoor unit control connection
Pilot wire for electric convectors
Power supply
Bottom view of the indoor unit
5 - ACCESSORIES
5.1 - WATER CONNECTION HOSES
• Length 1 m, insulated, female:
- Ø 1” code 70600055
6 - STARTING
Before carrying out any work on the installation, make sure that first the outdoor unit is disconnected
and then the hydrokit and that access to it is prevented.
Any work must be carried out by personnel qualified and authorised to work on this type of machine.
IMPORTANT NOTE
Also refer to the installation instructions provided with the outdoor unit.
6.1 - PRELIMINARY CHECKS
6.1.1 - COOLING CIRCUIT
• Refrigeration couplings correctly tightened.
• Both of the outdoor unit's shutoff valves are open.
• integrity of the cooling circuit (per Decree of 7 May 2007).
• Also refer to the verifications indicated in the outdoor unit's installation instructions.
6.1.2 - HYDRAULIC CIRCUIT
• Hydraulic couplings correctly tightened.
• Hydraulic circuit operating correct:
- purge of circuits,
- position of valves,
- hydraulic pressure (1.5 to 2.5 bar).
• Integrity of the hydraulic circuit.
