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14.2 Subcooling charging and refrigerant adjustment in cooling (above 55 F outdoor temp.)
STEP 1 - Check the outdoor ambient temperatures.
STEP 2 - Ensure Sections 7, 8, 9, 10, and 13 have
been completed.
STEP 3 - Stabilize the system.
After starting the system in cooling mode, short press
“FORCE”button, and “┣” symbol appears in 10 minutes,
operate the system for a minimum of twenty (20) minutes.
20 MIN.
55 ºF
80 ºF
70 ºF
Outdoor Temp1
Indoor Temp
120 ºF
55 ºF
Outdoor Temp2
Important:Whenever charge adjustment or expan-
sion valve adjustment,if unit is running continuously,
the system must be operated for a minimum of five
(5) minutes, otherwise repeat step 3.
Subcooling (in cooling mode) is the only recommended
method of charging above 55ºF outdoor ambient
temperatures.
For best results the indoor temperature should be kept
between 70ºF to 80ºF.
For outdoor ambient temperatures below 55ºF , use
weigh-in charge method.
Note:It is important to return in the spring or summer to
accurately charge the system in the cooling mode when
outdoor ambient temperature is above 55ºF.
Outdoor
Temperature
Above 55ºF
Outdoor
Temperature
Below 55ºF
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