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3 Technical specifications
Connector
Compressor capacitor
Power supply
E-Heater
OFF-PEAK
N
L
CT1
CT2
4–WAY VALVE
COM1
LOW SPEED
HIGH SPEED
RT5L
RT3
RT4
RTh
RTp
A - B - E – P - Q
PRO_P
Compressor outside overload
protection
S1
SW1
Tab.5
Switches
Switch
S1 - 1
S1 - 2
S1 - 3
Tab.6
Colour code
Colour
Description
Black
Black
Blue
Blue
Tab.7
Temperature sensors: exchanger – outside air – suction
Temperature (°C)
Resistance (KOhm)
Tab.8
Domestic hot water tank temperature sensor
Temperature (°C)
Resistance (KOhm)
22
SPC Split
Description
Compressor capacitor
Electrical power supply
Electrical back-up
Off-peak rate signal
Neutral
Live
Earth
Current transformer
Differential current transformer
4-way valve
Control panel bus
Low fan speed
High fan speed
Domestic hot water tank temperature sensor
Exchanger temperature sensor
Outside air temperature sensor
Air suction temperature sensor
Air discharge temperature sensor
OFF-PEAK terminal block connectors
High-pressure pressure switch
Compressor outside overload protection
Selector
Switch
OFF
-
Anti-legionella mode disabled
Temperature in anti-legionella mode 65°C
Colour
Description
Brown
Brown
Grey
Grey
-20
0
20
115
35.2
12.6
-20
0
20
526
167
61.9
Colour
Description
Orange
Orange
Red
Red
3.4.3
Sensor specifications
40
60
5.18
2.36
40
60
26.1
12.2
ON
-
Anti-legionella mode enabled
Temperature in anti-legionella mode 70°C
Colour
White
Yellow/
Green
80
100
1.17
0.63
80
100
6.20
3.39
7740321 - v04 - 03122019
Description
White
Yellow/Green
120
0.36
120
1.97
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