CAUTION
CAUTION
-76 c mHg
Lo-lev er
Hi-leve r
Charg e hos e
Charg e hos e
Vac uum p ump
Lo-lev er
Manifo ld valv e
Multi-m eter Pressu re meter
Fig.8-7
Refrigerant cannot be charged until field wiring has been
completed.
Refrigerant may only be charged after performing the leak
test and the vacuum pumping.
When charging a system, care shall be taken that its
maximum permissible charge is never exceeded, in view of
the danger of liquid hammer.
Charging with an unsuitable substance may cause
explosions and accidents, so always ensure that the
appropriate refrigerant is charged.
Refrigerant containers shall be opened slowly.
Always use protective gloves and protect your eyes when
charging refrigerant.
Ventilate the air if there was any refrigerant leakage
during the installation.
Leaked refrigerant will generate poisonous gas if
meeting fire.
Make sure there is no refrigerant leakage after the
installation.
Leaked refrigerant will generate poisonous gas if
meeting fire.
Allowed Lenght and Drop of Pipes
Requirements are different when installing the outdoor unit,
please refer to outdoor unit installation manual for detailed
information.
Material and Size of the Pipes
8.2. Refrigerant pipe installation
NOTE
Drainage test
Drainage test
Check whether the drainpipe is unhindered.
New built house should have this test done before paving
the ceiling.
Remove the test cover, and stow water of about 2000ml to the
water receiver through the stow tube.
Turn on the power, and operate the air conditioner under the
"COOLING" mode. Listen to the sound of the drain pump.
Check whether the water is discharger well (a lag of 1min is
allowed before discharging, according to the length of the drain
pipe), and check whether water leaks from the joints.
1
2
Stop the air conditioner, turn off the power, and reset the test
cover to its original position.
3
The drain plug is used to empty the water-receiver for
maintenance of the air conditioner. Please stuff it imposition at
all times during operation to avoid leakage.
The body's pump pipe and the drainpipe (especially the
indoor part) should be covered evenly with the out-let pipe
sheath (fittings) and be bound tightly with the constrictor to
prevent condensation caused by entered air.
To prevent water from flowing backwards into the air
conditioner while the air conditioner stops, please lean the
drainpipe down toward outdoor (outlet-side) at a degree of
over 1/ 50. And please avoid any bulge or water deposit.
Do not drag the drainpipe violently when connecting to
prevent the body from being pulled. Meanwhile, one
drainpipe from yielding.Or you can tie the drainpipe with the
connecting pipe to fix it.
In the case of prolonged drainpipe, you had better tighten its
indoor part with a protection tube to prevent it from loosing.
If the outlet of the drainpipe is higher than the body's pump
joint, the pipe should be arranged as vertically as possible.
water will overflow when the air conditioner stops.
The end of the drainpipe should be over 2.0inch higher than
the ground or the bottom of the drainage chute, and do not
immerse it in water. If you discharge the water directly into
sewage, be sure to make a U-form aquaseal by bending the
pipe up to prevent the smelly gas entering the house through
the drain pipe.
9. CONNECT THE DRAIN PIPE
Install the drainpipe of the indoor unit
You can use a polyethylene tube as the drainpipe
market or from your dealer.
Set the mouth of the drainpipe onto the root of the body's
pump-pipe, and clip the drainpipe and the out-let pipe sheath
(fittings) together firmly with the out-let pipe clasp (fitting).
13
installation manual
Three length(9.8ft,16.4ft,32.8ft)of pipes are available to purchase.
And the lift distance must be less than 7.8inch, otherwise the
supportpoint should be set every 3.3~4.9ft to prevent the
(out-dia.1.46-1.54in, in-dia.1.26in). It could be bought at local