Johnson Controls GCGD18S Specifications page 2

Outdoor Unit
Required Orifice or
1,2
TXV
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
3,4
Indoor Unit
FC/MC/PC18
FC/MC/PC35
FC/MC/PC43
FC/MC/62
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.
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.
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.
System Charge for Various Matched Systems
GCGD18 GCGD24
S21S2X(E) S21S2X(E)
0.052/2A1 0.059/2A1
include 15 feet of lineset.
3 - 1 --
-- --
-- --
-- --
GCGD30 GCGD36
S21S2(E) S21S2(E)
0.065/2A1 0.073/2A1
System Charge, lbs - oz
-- --
3 - 11 --
-- 4 - 3
-- --
Thermo Products, LLC
5235 West State Road 10
North Judson, IN 46366
www.thermopride.com
GCGD42 GCGD48
S21S2X(E) S21S2(E)
0.081/2C1 0.084/2C1
-- --
-- --
4 – 2 --
-- --
GCGD60
S21S2(E)
0.096/2C1
--
--
--
5 - 4-