9
A14567
Fig. 10 -- Select Refrigerant Charging
A14568
Fig. 11 -- Select Charging Subcooling
3. If installed indoor unit is a furnace coil, model should have
been selected manually during the initial discovery process.
Press the text “line set” and “vapor line” to choose line set
length and vapor line diameter. After complete, press “next”
to advance to next screen. The “weigh in” value is the total
charge weight and includes refrigerant shipped in unit. If
“weigh in” text is selected the additional charge required is
broken down into the line set adder and indoor coil size
adder.
A14569
A14570
Fig. 12 -- Select Line Set Length & Vapor Line Diameter
CAUTION
!
UNIT OPERATION HAZARD
Failure to follow this caution may result in improper unit
operation.
For new installations only.
Add additional refrigerant due to
indoor coil, line set, and vapor line settings. Outdoor unit is
pre--charged with weight of refrigerant shown on rating plate.
A14571
Fig. 13 -- Weigh In Value
4. Add additional required charge for line set and indoor coil
size then fully open liquid and vapor service valves. If line-
set is less than 15 feet (4.57 m) in length, charge removal
may be necessary and will be shown as a negative number
on UI screen. UI screen displays charge in lb and oz, while
unit rating plate is in decimal format.
Factory Charge
Coil & Lineset
Additional Charge
Required
A14572
Fig. 14 -- Additional Required Charge
