Johnson Controls GCGD12, GCGD24, GCGD18, GCGD30, GCGD36 Technical Manual

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TECHNICAL

TECHNICAL

GUIDE

GUIDE

SPLIT-SYSTEM

IR CONDITIONERS
13 SEER – R-22
MODELS:

GCGD12 THRU 60
(1 THRU 5 NOMINAL TONS, 1 PHASE)

ISO 9001

Certified Quality

Management System

LISTED

Due to continuous product improvement, specifications
are subject to change without notice.

isit us on the web at www.york.com
dditional rating information can be found at

ww.ahridirectory.org

400038-UTG-B-0708

DESCRIPTION

The 13 SEER Series condensing unit is the outdoor part of a
versatile system of air conditioning. It is designed to be cus­tom-matched with one of UPG’s complete line of evaporator
sections, with each serving a specific function. Matching Air
Handlers are available for upflow, downflow, or horizontal
applications to provide a complete system. Electric Heaters
are available, if required. Add-On coils are available fo r use
with upflow, downflow, or horizontal furnaces and air han­dlers.

WARRANTY

Single Phase Units:

5-year limited parts warranty.
5-year limited compressor warranty.

FEATURES

• QUALITY CONDENSER COILS - The coil is constructed
of aluminum microchannel tubing and enhanced aluminum
fins for increased efficiency and corrosion protection.

• PROTECTED COMPRESSOR - The compressor is inter­nally protected against high pressure and temperature.
This is accomplished by the simultaneous operation of
high pressure relief valve and a temperature sensor which
protects the compressor if undesirable operating condi­tions occur. A liquid line filter-drier further protects the
compressor.

• DURABLE FINISH - The cabinet is made of pre-painted
steel. The pre-treated galvanized steel provides a better
paint to steel bond, which resists corrosion and rust creep.
Special primer formulas and matted-textured finish insure
less fading when exposed to sunlight.

• LOWER INSTALLED COST - Installation time and costs
are reduced by easy power and control wiring connec­tions. Available in sweat connect models only. The unit
contains enough refrigerant for matching indoor coils and
15 feet of interconnecting piping. The small base dimen­sion means less space is required on the ground or roof.

• TOP DISCHARGE - The warm air from the top mounted
fan is blown up away from the structure and any landscap­ing. This allows compact location on multi-unit applica­tions.

• LOW OPERATING SOUND LEVEL - The upward air flow
carries the normal operating noise away from the living
area. The rigid top panel effectively isolates any motor
sound. Isolator mounted compressor and the rippled fins
of the condenser coil muffle the normal fan motor and
compressor operating sounds.

• LOW MAINTENANCE - Long life permanently lubricated
motor-bearings need no annual servicing.

• EASY SERVICE ACCESS - Fully exposed refrigerant con­nections, and a single panel covering the electrical con­trols make for easy servicing of the unit.

• SECURED SERVICE VALVES - Secured re-usable ser-
vice valves are provided on both the liquid and vapor
sweat connections for ease of evacuating and charging.

• U.L. and C.U.L. listed - approved for outdoor application.

Certified in accordance with the Unitary Small Equipment cer­tification program, which is based on ARI Standard 210/240.

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

400038-UTG-B-0708

Physical and Electrical Data

MODEL

GCGD12

S21S2

GCGD18

S21S2

GCGD24

S21S2

GCGD30

S21S2

GCGD36

S21S2

GCGD42

S21S2

GCGD48

S21S2

GCGD60

S21S2

Unit Supply Voltage 208-230V, 1φ, 60Hz
Normal Voltage Range

1

187 to 252

Minimum Circuit Ampacity 6.2 9.5 11.3 14.0 18.2 19.9 22.7 33.5
Max. Overcurrent Device Amps
Min. Overcurrent Device Amps

2

3

15 15 15 20 30 30 35 50
15 15 15 15 20 20 25 35

Compressor Type Rotary Rotary Rotary Recip Recip Recip Recip Scroll
Compressor Amps

Rated Load 4.5 7.2 8.4 10.6 13.4 14.7 17.0 25.6

Locked Rotor 26.0 40.0 47.0 61.0 78.0 78.0 86.0 150.0
Crankcase Heater No No No No No No No No
Fan Motor Amps Rated Load 0.50 0.50 0.80 0.80 1.4 1.5 1.5 1.5
Fan Diameter Inches 18 18 18 18 18 22 22 22

Rated HP 1/12 1/12 1/8 1/8 1/4 1/4 1/4 1/4
Fan Motor

Nominal RPM 1100 1100 1075 1075 1100 850 850 850

Nominal CFM 1350 1550 1850 1950 2400 3000 3000 3300

Face Area Sq. Ft. 8.1 9.7 9.7 11.3 12.1 16.5 16.5 19.75
Coil

Rows Deep 11111111

Fin / Inches 23 23 23 23 23 23 23 23
Liquid Line Set OD (Field Installed) 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
Vapor Line Set OD (Field Installed) 5/8 5/8 3/4 3/4 3/4 7/8 7/8 1-1/8

Unit Charge (Lbs. - Oz.)

4

3 - 2 3 - 0 3 - 13 3 - 7 3 - 15 4 - 2 4 - 5 5 - 4

Charge Per Foot, Oz. 0.66 0.66 0.68 0.68 0.68 0.70 0.70 0.76
Operating Weight Lbs. 96 110 130 150 160 175 176 200

1.Rated in accordance with ARI Standard 110, utilization range “A”.

2.Dual element fuses or HACR circuit breaker. Maximum allowable overcurrent protection.

3.Dual element fuses or HACR circuit breaker. Minimum recommended overcurrent protection.

4.The Unit Charge is correct for the outdoor unit, matched indoor coil and 15 feet of refrigerant tubing. For tubing lengths other than
15 feet, add or subtract the amount of refrigerant, using the difference in length multiplied by the per foot value.

All dimensions are in inches. They are subject to change
without notice. Certified dimensions will be provided upon

C

request.

DIMENSIONS

Unit

Model

12 24

A

18 28
24 28 23-1/2 23-1/2
30 32 23-1/2 23-1/2
36 34 23-1/2 23-1/2
42 34 29 29

B

48 34 29 29
60 40 29 29 1-1/8”

1. Including Fan Guard.

2 Johnson Controls Unitary Products

Dimensions

(Inches)

1

B C Liquid Vapor

A

Refrigerant Connection

Service Valve Size

23-1/2 23-1/2
23-1/2 23-1/2

3/8”

3/4”

7/8”

400038-UTG-B-0708

Additional R-22 Charge / Orifice Size for Various Matched Systems

Outdoor Unit

Required Orifice or TXV
Factory R-22 Charge, lbs-oz 3 - 2 3 - 0 3 - 13 3 - 7 3 - 15 4 - 2 4 - 5 5 - 4

GCGD12

S21S2

1,2

0.041 / 2A 0.052 / 2A 0.059 / 0.061 / 2A 0.065 / 2A 0.073 / 2A 0.081 / 2C 0.084 / 2C 0.096 / 2C

GCGD18

S21S2

GCGD24

S21S2

GCGD30

S21S2

GCGD36

S21S2

GCGD42

S21S2

GCGD48

S21S2

GCGD60

S21S2

Indoor Coil

FC/MC/PC/UC18A2A 0 0 – –––––
FC/MC/PC/UC18B2A 0 0 – –––––
FC/MC/PC/UC24A2A –0 – –––––
FC/MC/PC/UC24B2A –0 – –––––
FC/MC/PC32A2A –– +3 +4 ––––
FC/MC/PC35B2A –– +3 +4 ––––
FC/MC/PC35C2A –– +3 +4 ––––
FC/MC/PC/UC36A2A –– 0 –––––
FC/MC/PC/UC36B2A –– 0 –––––
FC/MC/PC/UC36C2A –– 0 –––––
FC/MC/PC37A2A – – +7 +12 +4 – – –
FC/MC/PC43B2C –– – ––0 ––
FC/MC/PC43C2C –– – ––0 ––
FC/MC/PC/UC48C2C – – – – – +5 +2 –
FC/MC/PC/UC48D2C – – – – – +5 +2 –
FC/MC62D2C –– – ––––0
HC18A2A 0 0 – –––––
HC30A2A –– 0 –––––
HC36B2A –– +3 +4 ––––
HC42C2C – – – +12 +4 0 – –
AHP18B2A 0 0 – –––––
AHP24B2A –0 – –––––
AHP30B2A –– +3 +4 ––––
AHP36C2A – – – +12 +4 – – –
AHP42C2C –– – ––0 ––
AHP/SHP60D2C –– – –––0 –
FC/MC/PC/UC18A3X 41 + 0 52 + 0 – –––––
FC/MC/PC/UC18B3X 41 + 0 52 + 0 – –––––
FC/MC/PC/UC24A3X –52 + 2 – –––––
FC/MC/PC/UC24B3X –52 + 2 – –––––
FC/MC/PC32A3X –– 61 + 3 65 + 4 ––––
FC/MC/PC35B3X –– 61 + 3 65 + 4 ––––
FC/MC/PC35C3X ––61 + 3 65 + 4 ––––
FC/MC/PC/UC36A3X –– 59 + 0 –––––
FC/MC/PC/UC36B3X –– 59 + 0 –––––
FC/MC/PC/UC36C3X –– 59 + 0 –––––
FC/MC/PC37A3X – – 61 + 7 65 + 12 73 + 4 – – –
FC/MC/PC43B3X – – 61 + 7 65 + 12 73 + 4 81 + 0 – –
FC/MC/PC43C3X – – 61 + 7 65 + 12 73 + 4 81 + 0 – –
FC/MC/PC/UC48C3X – – – – 73 + 4 81 + 5 84 + 2 –
FC/MC/PC/UC48D3X – – – – 73 + 4 81 + 5 84 + 2 –
FC/MC62D3X –– – ––––96 + 0
HC18A3X 41 + 0 52 + 0 – –––––
HC30A3X –– 59 + 0 –––––
HC36B3X –– 61 + 365 + 4 ––––
HC42C3X – – 61 + 7 65 + 12 73 + 4 81 + 0 – –
For Notes See Page 4.

3,4

Additional Charge, Oz

Johnson Controls Unitary Products 3

400038-UTG-B-0708

Additional R-22 Charge / Orifice Size for Various Matched Systems (Continued)

Outdoor Unit

Required Orifice or TXV

GCGD12

S21S2

1,2

0.041 / 2A 0.052 / 2A 0.059 / 0.061 / 2A 0.065 / 2A 0.073 / 2A 0.081 / 2C 0.084 / 2C 0.096 / 2C

Factory R-22 Charge, lbs-oz 3 - 2 3 - 0 3 - 13 3 - 7 3 - 15 4 - 2 4 - 5 5 - 4

GCGD18

S21S2

GCGD24

S21S2

GCGD30

S21S2

GCGD36

S21S2

GCGD42

S21S2

GCGD48

S21S2

GCGD60

S21S2

Indoor Coil

3,4

Additional Charge, Oz

AHP18B3X 41 + 0 52 + 0 – –––––

AHP24B3X –52 + 0 – –––––
AHP30B3X –– 61 + 3 65 + 4 ––––
AHP36C3X – – – – 73 + 4 – – –
AHP42C3X – – – – 73 + 4 81 + 0 – –
AHP/SHP60D3X – – – – – – 84 + 0 –

F4FP024

F4FP036

F4FP040

F5FP048

F5FP060

See Caution below

See Caution below

See Caution below

See Caution below

See Caution below

–52 + 0 – –––––
–2A + 0 – –––––
–– 61 + 1 –––––
––2A + 2 –––––
–– – 65 + 0 ––––
–– – 2A + 0 ––––
– – – – 73 + 0 81 + 5 84 + 2 –
– – – – 2A + 0 2C + 5 2C + 2 –
–– – –––84 + 0 –
–– – –––2C + 0 –

FOOTNOTES:

1. For applications requiring a TXV use 1TVM series kit.

2. Approved orifice shipped with outdoor unit.

3. Systems matched with furnace or air handlers not equipped with blower-off delays may require blower Time Delay Kit
2FD06700224.

4. PC coils cannot be used in downflow or horizontal applications. FC coils cannot be used in horizontal applications.

PROCEDURES:

1. Unit factory charge listed on the unit nameplate includes refrigerant for the condenser, the smallest evaporator and 15 feet of inter­connecting line tubing.

2. Verify the TXV or orifice and additional charge required for specific evaporator coil in the system using the above table.

3. Additional charge for the amount of interconnecting line tubing greater than 15 feet at the rate specified in Physical and Electrical
Data Table.

4. For TXV match charge weight needs to be weighed in for specififc coil match and lineset length.

5. Permanently mark the unit nameplate with the total system charge. Total System Charge = Base Charge (as shipped) + adder for
evaporator + adder for line set.

Models 12-48 require start kits for TXV matches. Models with “H” on the end of the model number have factory installed start kits.
For models without an “H” refer to tech guide for kit number reference.

F*FP Air Handlers come with a factory installed R-22 TXV. Please note that some models may take a different TXV then what is factory
installed. The proper TXV must be installed for system reliability and performance. Also note, TXV must be removed for orifice match.

4 Johnson Controls Unitary Products

400038-UTG-B-0708

COOLING CAPACITY - With Air Handler Coils

UNIT

MODEL

AIR HANDLER

MODEL W

COIL

MODEL

1

RATED

CFM

TOTAL SENS.

13 SEER AC WITH MA

GCGD18S21S2

MA08B 17 FC/MC18B 600 18.0 12.6 13.00 11.00
MA08B 17 FC/MC24B 600 18.0 12.6 13.00 11.00
MA08B 17 FC/MC35B 800 24.0 17.2 13.00 11.00

GCGD24S21S2

MA08B 17 FC/MC36B 800 24.0 17.2 13.00 11.00
MA08B 17 FC/MC43B 800 24.0 17.2 13.00 11.00

GCGD30S21S2

GCGD36S21S2

MA12B 17 FC/MC35B 1000 29.0 21.2 13.00 11.00
MA12B 17 FC/MC43B 1000 29.0 21.2 13.00 11.00
MA12B 17 FC/MC43B 1200 35.0 24.4 13.00 11.00
MA14D 24 FC/MC48D 1200 35.0 24.4 13.00 11.00
MA16C 21 FC/MC43C 1400 42.0 29.4 13.00 11.00

GCGD42S21S2

MA14D 24 FC/MC48D 1400 42.0 29.4 13.00 11.00
MA16C 21 FC/MC48C 1400 42.0 29.4 13.00 11.00

GCGD48S21S2

MA16C 21 FC/MC48C 1600 46.0 32.6 13.00 11.00
MA20D 24 FC/MC48D 1600 46.0 32.6 13.00 11.00

GCGD60S21S2 MA20D 24 FC/MC62D 1800 54.0 41.5 13.00 11.00

13 SEER AC WITH AHP / SHP / F*FP

GCGD12S21S2 AHP18 17 –

AHP18 17 –

GCGD18S21S2

AHP24 17 –

F4FP024 18 –

GCGD24S21S2

AHP30 17 –

F4FP036 21.5 –

AHP30 17 –

GCGD30S21S2

AHP36 21 –

F4FP040 21.5 –

GCGD36S21S2

GCGD42S21S2

AHP36 21 –

F5FP048 24 –

AHP42 21 –

F5FP048 24 –

AHP/SHP60 24 –

GCGD48S21S2

F5FP048 24 –
F5FP060 24 –

Rated in accordance with DOE test procedures (Federal Register 12-27-79 and 3-18-88) and ARI Standards 210.
Cooling MBH based on 80°F entering air temperature, 50% RH, and rated air flow.
EER (Energy Efficiency Ratio) is the total cooling output in BTU’s at 95°F outdoor ambient divided by the total electric power in watt-hours at those conditions.
SEER (Seasonal Energy Efficiency Ratio) is the total cooling output in BTU’s during a normal annual usage period for cooling divided by the total electric power
input in watt-hours during the same period.

450 12.0 8.9 13.00 11.00
650 18.0 12.6 13.00 11.00
650 18.0 12.6 13.00 11.00
600 18.0 12.6 1300 11.00
795 24.0 17.3 13.00 11.00
860 24.0 17.3 13.00 11.00
1015 29.0 21.2 13.00 11.00
1015 29.0 21.2 13.00 11.00
1000 29.0 21.2 13.00 11.00
1235 35.0 24.4 13.00 11.00
1235 35.0 24.4 13.00 11.00
1485 42.0 29.4 13.00 11.00
1455 42.0 29.4 13.00 11.00
1600 46.0 33.0 13.00 11.00
1690 46.0 33.0 13.00 11.00
1680 46.0 33.0 13.00 11.00

COOLING

NET MBH

SEER EER

1. MC coils available with a factory installed horizontal drain pan. See price pages for specific model number.
— = Not applicable.

Johnson Controls Unitary Products 5