Accorroni HUB RADIATOR MINI 11.0, Руководство по установке

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9
Then run the vacuum pump.
The running time varies depending on the length of the pipes
andthe capacity of the pump.
When the desired vacuum is reached, close the “LOW” knob of
the pressure gauge valve and stop the vacuum pump.
Finally, using a service valve wrench, turn the gas side valve
stem counterclockwise to fully open.
Loosen the charging hose connected to the gas side service port
to relieve the pressure, then remove the hose.
Replace the gas valve and service plug cover nut and tighten
securely with an adjustable wrench.
This procedure is very important to avoid system leaks.
Replace the service valve caps on both the gas and liquid side
and tighten well. This completes the air purge procedure with the
vacuum pump, make sure that all pipes are connected correctly
and that the service valves on the gas and liquid sides are
completely open.
3.6 OPENING THE VALVES AND RELEASING THE
REFRIGERANT RELATING TO THE OUTDOOR UNIT
1) Remove the cap of the liquid sectioning valve coolant, liquid
side (Fig. B n. 1).
2) Open valve A with the aid of a hex wrench turning
anticlockwise until it stops (Fig. B n. 2).
3) Replace the cap.
4) Remove the cap from the gas cut-off valve coolant (Fig. B n. 4).
5) Open the valve with pliers by turning counterclockwise of a
quarter of a turn (Fig. B n. 5).
6) Replace the cap.
7) Disconnect the vacuum gauge and the vacuum pump.
8) Put the cap back on the valve (Fig. B n. 3).
9) Tighten all the caps with the aid of a torque wrench with
tightening torque from 20 to 25 N / m. See table 3.
10) Check the tightness of the fittings using a leak detector
1
8
3
2
5
4
6
Fig. B
Gas side cock Liquid side tap
3.7 PUMP DOWN
This procedure is carried out when the unit needs to be moved or
assistance is carried out on the refrigerant circuit.
Emptying allows all the refrigerant to be collected in the outdoor
unit without leaks.
3.8 RECOVERY PROCEDURE
- Connect a low pressure gauge with a hose to the gas valve
service socket.
- Half open the gas valve and empty the air from the pipeline
pressure gauge using refrigerant gas.
- Close the liquid valve completely.
- Turn on the machine in cooling mode.
- When the pressure of the manometer goes between 0 and 0.5
kg / cm 2G (between 14.2 and 7.1 P.S.G.I) close the valve
completely gas and quickly turn off the indoor unit.
Complete recovery of the refrigerant from the outdoor unit was
thus carried out.
ATTENTION! Be sure to perform the emptying procedure
with the unit in COLD MODE.
3.9 ACOUSTIC REQUIREMENTS (Fig. 11)
During the installation phase of a HUB RADIATOR MINI heat
pump, it is necessary to evaluate very carefully where the
outdoor unit is positioned, in order to avoid induced noise that
goes beyond the tolerance threshold.
on the ground, free instal 3 dB (A)
in a corner of the recessed 9 dB (A)
against the 6 dB (A)
Fig. 11
POSITIONING OF THE
OUTDOOR UNIT
The external evaporating motor unit during work generates external
noise emissions and requires appropriate measures to reduce the
incidence of noise produced by the compressor and / or fan.
Very important then is the system execution that is combined with
the heat pump in this regard it is recommended to use the following
accessories listed below (see Chapter 4.9 ACCESSORIES HUB
RADIATOR MINI XL)
ANTI-VIBRATION FLOOR BASE IN VULCANIZED RUBBER
(HEIGHT FROM THE GROUND MM 95) WITH LEVEL AND
SCREWS FOR BOOSTER HR 3.0 - 7.8 - 9.0
ANTI-VIBRATION KIT FOR INSTALLATION ON SHELVES