8
MAINS POWER CABLE A
• 3 G 2.5 mm
2
to 230V/1/50Hz.
• 5 G 1.5 mm
2
to 400 V/3N/50 Hz.
Note:
Power is supplied to the electric heater kit separately
(see Accessories chapter).
CONNECTION CABLE C between the units
• For cooling only models, use wiring of the same size as
that of the mains power supply cable.
• 7 G 1.5 mm
2
(6 conductors used) for heat pump models.
CONNECTION CABLE OF DE-FROSTING SENSOR D
of the outdoor unit (heat pump models only)
• 2 x 1.5 mm
2
(maximum length: 50 m).
Caution: Do not lay this cable near power cables.
REMOTE CONTROL CONNECTION CABLE E
(heat pump models only)
• Number of conductors: 10.
• Min. section
: 0.14 mm
2
(copper).
• Max. section
: 0.75 mm
2
(copper).
• Service voltage
: 100 V mini.
• Max. diameter
: 7 mm.
• Maximum length
: 50 m.
Caution: Do not lay this cable near power cables
(including inside the PA).
3
1
1
2
4
4.3.4 - USING THE FLARE VALVE
• After completing the connection to the internal and external units, the
connections and internal unit must be bled.
• Proceed as indicated below:
1 - Undo the plugs (1).
2 - Remove the bleed plug (2).
3 - Connect the vacuum pump (3).
4 - We recommend that you fit a shut-off valve (4).
5 - After bleeding, close the shut-off valve (4).
6 - Open the two valves completely until they are right against the seat.
7 - Remove the vacuum pump (3) and the shut-off valve (4).
8 - Tighten the bleed plug (2).
9 - Fully tighten the plugs (1).
10 - Add more charge if necessary (see paragraph 4.3).
Note: Refrigerant and electrical connections can be supplied as
accessories. See the "Accessories" section.
Liquide size
3-way valve
3-way
valve
Gas size
Indoor
unit
NOTE : The sections are given as an indication only.
They must be checked and adapted to suit the installation
conditions according to existing standards.
4.4 - ELECTRICAL CONNECTION
REMINDER:
• The PA-C and X models (cooling only) are supplied
without regulation.
• The PA-R models (heat pump) come with specific
electronic regulation with wired remote control.
NOTES:
• The acceptable voltage variation is
±
10% during
operation.
• The electrical connection conduits must be fixed.
• The electrical installation must be carried out in
compliance with the rules in force (especially NFC 15-100
CEI 364).
• The cables are not included in the supplies.
• Short circuit current: 6 kA (GR 268 R only).
MAINS SUPPLY:
• The power supply must come from an isolation and
electric protection device (not supplied) in accordance
with existing regulations.
Note:
In the case of the 3-phase GRV 265 X and GR 268 R,
check the correct phase rotation order. If this order is
not complied with, the SCROLL compressor "runs the
wrong way round" (and makes a strange noise).
To remedy this, simply invert 2 phases.
4.4.1 - CONNECTION CABLES
• See drawings in paragraph 12.
4.3.1 - INSULATION OF PIPES
• Insulate the 2 tubes separately.
• Use minimum 8 mm thick polyethylene sheathing.
• Pay particular attention to preventing water entering along the pipes via the hole in the wall.
Tightening torque
Dia. of pipes
1/4"
3/8"
1/2"
5/8"
2 kgf-m
3 kgf-m
5 kgf-m
6.5 kgf-m
4.3.2 - CONNECTION ON THE INDOOR UNIT
• Check that the connections are clean.
• Tighten the fittings by hand.
• Tighten using torque wrenches (see tightening torque in the table
opposite).
4.3.3 - CONNECTION ON THE OUTDOOR UNIT
• Connect the gas and liquid tubes on the corresponding Flare valves.
• Tighten by hand.
• Tighten using torque wrenches (see tightening torque in the table above).
