7
90
45
• First of all remove the top front panel by undoing the 2 clips
A a quarter of a turn.
Pull the front panel towards you and lift it.
• Then remove the bottom front panel by undoing the 2 clips
B a quarter of a turn.
Pull the front panel towards you and lift it.
Gas valve
Liquid valve
Hole for pipes and cables
HP tapping point
Hole for electric
cables
LP tapping point
Electrical equipment cabinet
• The pipes and cables are inserted through
the right-hand side of the unit.
Open the cap and use the rubber profiled
section supplied as protection.
Note:
To make it easier to install the pipes, the
stiffener can be removed. Make sure that it is
then re-fitted for good panel rigidity.
4.2 - PREPARING THE OUTDOOR UNIT - GRV 265 X
(to gain access to the refrigerant valves and electrical box)
Stiffener
4.3 - REFRIGERANT CONNECTION
*
For lengths greater than 20 m, please consult us.
• If the difference in level is greater than 3 metres, do an oil trap.
NOTE:
The nominal capacity is given for a total length of 8 m.
Indoor unit
A
B
Oil trap
Outdoor unit
APPLIANCES FILLED WITH R 407 C
R 407 C
• Fluid R 407 C, as opposed to R22, is not a pure fluid but a blend
composed of:
- 23% R 32 + 25% R 125 + 52% R 134 A.
• The compressors approved for operation with this fluid are filled
beforehand with polyalcohol oil.
Contrary to mineral oil, it is very hygroscopic: it absorbs the
humidity of the ambient air very quickly. This can modify its
lubricant properties and lead in time to the destruction of the
compressor.
MAINTENANCE INSTRUCTIONS
1 - Never add oil to the appliance; the compressor is filled with
polyalcohol oil, a special oil which cannot tolerate the presence
of other oils.
2 - The instruments used for:
- filling,
- pressure measurements,
- emptying under vacuum,
- recovering the fluid,
must be compatible and only used for the R 407 C fluid.
3 - The weight of the refrigerant contained in the storage bottle must
be checked constantly. Do not use it from the moment the
remaining weight is less than 10% of the total weight.
4 - In the case of a new charge:
- do not use the charging cylinder,
- use a balance and a dip pipe type R 407 C cylinder,
- charge the weight of R 407 C as per the value indicated on the
unit’s identification plate (for "split systems", refer to the
installation instructions as the charge must consider the
length of the connecting lines),
- IMPORTANT: see paragraph 3.
5 - The charge must be undertaken in liquid phase.
6 - In case of leakage, do not complete the charge: recover the
remaining refrigerant for recycling and perform a total charge.
Recovery, recycling or the destruction of the fluid must be done
in compliance with the laws in force in the country concerned.
7 - If the refrigerant circuit is opened, you must:
- avoid the entry of air into the circuit as much as possible,
- replace the filter drier,
- perform the "vacuum operation" at a minimum level of 0.3
mbar (static).
Model
Dia.of pipes
Liquid
1/2"
5/8"
1/2"
5/8"
1/4"
3/8"
1/4"
3/8"
7
10
7
10
Gas
> 2 m 25 g/extra m
> 2 m 35 g/extra m
> 0 m 35 g/extra m
> 2 m 55 g/extra m
20
20
20
20
CPV 188 L
CPV 268 X
CP 188 R
CP 268 R
R 407 C = 1 670
1-phase
1 710
3-phase
R 407 C = 1 970
R 22
= 2 000
R 22
= 2 220
Maximum
difference in level
B (in m)
Max. length of
pipes
A (in m)
*
Additional charge
for extra length
Refrigerant load
in outdoor unit
(g)
