Johnson Controls GCGD18 thru 60 Fascicule
System Charge for Various Matched Systems
Outdoor Unit
GCGD18
S21S2X(E)
GCGD24
S21S2X(E)
GCGD30
S21S2(E)
GCGD36
S21S2(E)
GCGD42
S21S2X(E)
GCGD48
S21S2(E)
GCGD60
S21S2(E)
Required Orifice or
TXV
TXV
1,2
0.052/2A1 0.059/2A1 0.065/2A1 0.073/2A1 0.081/2C1 0.084/2C1 0.096/2C1
Units have been shipped without refrigerant. Remove nitrogen holding charge, select Indoor Unit, select orifice or
TXV, evacuate, and charge to the system charge listed below for matching Indoor Unit. System charges listed
include 15 feet of lineset.
Indoor Unit
3,4
System Charge, lbs - oz
FC/MC/PC18 3
-
1
-- -- -- -- -- --
FC/MC/PC35
--
--
3 - 11
--
--
--
--
FC/MC/PC43
--
--
--
4 - 3
4 – 2
--
--
FC/MC/62
-- -- -- -- -- --
5
-
4-
Footnotes:
1.
For applications requiring a TXV use S1-1TVM*** series kit.
2.
Approved orifice(s) shipped with outdoor unit.
3.
Systems matched with furnaces or air handlers not equipped with blower-off delays may require blower Time Delay Kit S1-2FD06700224.
4.
PC coils cannot be used in downflow or horizontal applications. FC coils cannot be sued in horizontal applications.
Procedures:
1.
Units are shipped from the factory without refrigerant. Remove nitrogen holding charge.
2.
Verify the TXV or orifice for the specific matched indoor unit in the system using the above table.
3.
System charge weights shown are for the outdoor unit, matched indoor unit, and 15 feet of refrigerant tubing.
4.
Add or subtract charge for the amount of interconnecting line tubing less than or greater than 15 feet at the rate specified in Physical and
Electrical Data Table.
Electrical Data Table.
5.
Weigh in the Total System Charge for the specific matched indoor unit and lineset length.
6.
Permanently mark the unit nameplate with the Total System Charge. Total System Charge = Base Charge (as shipped) + charge adder for
matched indoor unit + charge adder for lineset.
matched indoor unit + charge adder for lineset.
Important:
Models 18-48 require Hard Start Kits for TXV matches. Refer to the Hard Start Kit Accessory Installation Manual for the Hard Start Kit part number
for each model.
for each model.
Thermo Products, LLC
5235 West State Road 10
North Judson, IN 46366
www.thermopride.com