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12.2.2.7. ELECTRIC HEATING BATTERY OPTION
EC
: Heating elements
EC1
: Stage 1 heating elements (single phase models only).
EC2
: Stage 2 heating elements (single phase models only).
K2
: Power contactor for heating elements (three phase models)
FA
: Automatic reset safety thermostats.
FM
: Manual reset safety thermostats.
12.2.3. PRESSOSTATS SETTINGS
LP
: Low Pressure fixed setting: 1.5 bar (20 PSI) reset at 2.4bar (35 PSI)
HP
: High Pressure fixed setting: 29 bar (420 PSI) reset at 21 bar (305 PSI).
12.2.4. COLOUR CODE
BK
: Black
OG
: Orange
GNYE
: Green/Yellow
BN
: Brown
WH
: White
RD
: Red
BU
: Blue
GY
: Grey
VT
: Violet
YE
: Yellow
13. ELECTRICAL CONNECTIONS
13.1. GENERALITIES
Ensure that the available electrical power supply and the network frequency are matched to the required
operating current, taking account of the appliance’s specific location and the current required to supply any
other appliances connected to the same circuit.
1. Ensure that the unit is supplied with the specified voltage. Two stuffing boxes and one grommet hole
are provided on the side of the appliance. They are used respectively for the power and the control
wiring. The power supply line must be properly dimensioned with a motor supply type fuse or a
mains circuit breaker to protect the circuit against voltage surges. (Refer to the Maker’s Plate for the
voltages to be taken into consideration).
2. On three phase 400V / 3ph / 50Hz units, a neutral line is necessary for supplying the fan circuit with
230V /1ph / 50Hz.
3. Always shut down the power supply to the unit before connecting the thermostat wiring.
VERY IMPORTANT:
3N~400V-50HZ
The outdoor unit is equipped as standard with a phase sequence and cut-out controller located in the
electrical box.
THIS PRODUCT IS EQUIPPED WITH A PHASE SEQUENCE CONTROLLER. THE LED’s INDICATE THE FOLLOWING
CONDITIONS:
Green LED = 1
Yellow LED =1
Low voltage supply
The compressor rotation
direction is correct
Green LED = 1
Yellow LED =0
Phase inversion or phase
absent (L1)
The compressor and the
fans do not start.
Green LED = 0
Yellow LED =0
Phase absent (L2 or L3)
the compressor and the
fans do not start.
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