VENTING THE AIR
INSTALLATION OF THE OUTDOOR UNIT
SINGLE SPLIT
19
English 11/2002
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Refrigerant flow direction
2-way valve
(6) Open 1/4 turn
valve cap
(1) Turn
(8) Tighten
(2) Turn
3-way valve
(8) Tighten
(1) Turn
(7) Turn to fully open the
valve
(7) Turn to fully open the valve
(8) Tighten
Service
port
Connect to outdoor unit
indoor unit
Valve cap
1. Install the drain fitting and the drain hose (heat
pump model only)
The condensate is drained from the outdoor unit when
the appliance operates in heating mode. To avoid dis-
turbing neighbours and to respect the environment,
install a drain fitting and a drain hose to convey the
condensate. Simply install the drain fitting and the rub-
ber washer on the chassis of the outdoor unit, then
connect a drain hose as shown in the figure.
2. Installation and fastening of the outdoor unit
Bolt the unit securely to a level and sturdy floor. If the
unit is to be installed on a wall or on the roof, make
sure the support is fastened securely to prevent it from
moving following intense vibrations or strong winds.
3. Connecting the pipe to the outdoor unit
Remove the cap from the 2- and 3-way valves. Connect
the pipes to the 2- and 3-way valves separately, tighten-
ing to the torque specified.
4. Connecting the cable to the outdoor unit (see
the previous page)
The air that contains moisture remaining inside the refrig-
erant circuit may cause problems to the compressor. After
having connected the indoor and outdoor unit, vent the air
and the moisture from the refrigerant circuit using a vacu-
um pump.
(1) Unscrew and remove the caps from the 2- and 3-way
valves.
(2) Unscrew and remove the cap from the service valve.
(3) Connect the vacuum pump hose to the valve being
used.
(4) Run the vacuum pump for 10-15 minutes, until reaching
an absolute depression of 10mm Hg.
(5) With the vacuum pump still on, close the low pressure
knob on the vacuum pump hose.Then stop the vacuum
pump.
(6) Open the 2-way valve a 1/4 of a turn, then close it
again after 10 seconds. Check the seal of all the joints
using liquid soap or an electronic leak detector.
(7) Turn the body of the 2- and 3-way valves. Disconnect
the vacuum pump hose.
(8) Reposition and tighten all the caps on the valves.
Washer
Drain hose
(supplied by the
user)
Drain fitting
Vacuum pump
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