Charging Additional Refrigerant; Finishing The Job - Sanyo SPWXDR124GH56A Manual Del Usuario

8-3. Charging Additional Refrigerant

●
Charging additional refrigerant (calculated from the
liquid tube length as shown in "Amount of addition-
al refrigerant charge") using the liquid tube service
valve. (Fig. 8-5)
●
Use a balance to measure the refrigerant accurately.
●
If the additional refrigerant charge amount cannot
be charged at once, charge the remaining refrig-
erant in liquid form by using the gas tube service
valve with the system in Cooling mode at the time
of test run. (Fig. 8-6)
* If an additional refrigerant charge has been per-
formed, list the refrigerant tubing length and
amount of additional refrigerant charge on the
product label (inside the panel).

8-4. Finishing the Job

(1) With a hex wrench, turn the liquid tube service
valve stem counter-clockwise to fully open the
valve.
(2) Turn the gas tube service valve stem counter-
clockwise to fully open the valve.
CAUTION
(3) Loosen the charge hose connected to the gas
tube service port (5/16 in.) slightly to release the
pressure, and then remove the hose.
(4) Replace the 5/16 in. flare nut and its bonnet on
the gas tube service port and fasten the flare nut
securely with an adjustable wrench or box wrench.
This process is very important to prevent gas from
leaking from the system.
(5) Replace the valve caps at both gas and liquid
service valves and fasten them securely.
DC̲Inverter̲Eng.indd 61 DC̲Inverter̲Eng.indd 61
To avoid gas from leaking
when removing the charge
hose, make sure the stem of
the gas tube is turned all the
way out ("BACK SEAT" posi-
tion.
Manifold valve
Pressure
Lo Hi
gauge
Close
Gas
tube
Liquid
tube
Fig. 8-5
Open
Gas
tube
Liquid
tube
Fig. 8-6
61
GB
Valve
FR
Liquid
DE
R410A
Close
PT
Outdoor unit
GR
Close
ES
Open
Outdoor unit
Open
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IT