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TM5-4120-387-14
Loosen the hose connections to the two air conditioner charging valves
slightly.
d.
Open the two charging manifold valves.
e.
Open the refrigerant -22 drum value slightly to allow a small amount of
refrigerant
conditioner
f.
Close
liquid refr
g.
Posit
to purge-air from the hoses.
Tighten-the hose connections at the air
charging valves.
the low pressure (suction) charging manifold valve. Never introduce
igerant into the low pressure (suction) charging valve.
ion the refrigerant -22 drum so that liquid will be used for charging.
(Some drums must be inverted and some are equipped ’with a selector valve.)
h.
Using accurate scales, measure and record the weight of the refrigerant -22
drum.
i.
Open the refrigerant -22 drum valve.
j.
Open the high pressure charging valve on the air conditioner. Allow liquid
refrigerant to enter the system until the drum weight has decreased by 2.3 pounds
(1.05 kg) or until system pressure has equalized.
k.
Close the refrigerant drum valve and the high pressure (discharge) manifold
valve.
1.
Connect air conditioner to a remote control module assembly.
m.
Connect power.
n.
Press and release both pressure switch reset buttons.
o.
Turn air conditioner on and operate in the COOL mode with the Temperature
control thermostat set at a maximum DECREASE position and fan speed set to HI
SPEED.
p.
I f t h e 2 . 3 p o u n d ( 1 . 0 5 k g ) f u l l c h a r g e w a s o b t a i n e d , s k i p s t e p s q t h r u s .
If the system pressure equalized prior to obtaining a full charge of 2.3 pounds
(1.05 kg), proceed with step q.
q.
Switch the refrigerant drum to the gas only position.
r.
Be sure that the refrigerant drum has been switched to the gas position and
open the refrigerant drum valve, the low (suction) pressure charging manifold
valve, and the low (suction) pressure charging valve on the air conditioner.
Monitor the weight of the refrigerant drum as the air conditioner compressor
pulls additional refrigerant gas into the system until the full 2.2 pound (1.0 kg)
charge is obtained.
When the system is fully charged, immediately close the air
conditioner low pressure charging valve and the refrigerant drum valve.
5-18
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