Technical Guide

5127524-YTG-A-0815
Johnson Controls Unitary Products 3
NOMENCLATURE
COMPONENT LOCATION
PHG 4 A 24 50 2 X 1 A
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1. Model Family
PHG - packaged heat pump with gas heat,
PCG - packaged A/C with gas heat,
PCE - packaged A/C with electric heat,
PHE - packaged heat pump with electric heat
5. Gas Heating Input BTU/Hr x 1000
050 = 50,000 BTU/Hr. input, blank = electric heat
6. Voltage-Phase-Frequency
2 = 208/230-1-60, 3=208/230-3-60, 4 = 460-3-60
2. Nominal Cooling Efficiency
4 = 14 SEER, 6 = 16 SEER, etc.
7. NOx Approval
X = low-NOx, blank = not low-Nox
3. Cabinet Size
A = small 35 x 51, B = large 45 x 51
8. Generation Level
1 = first generation
4. Nominal Air Conditioning Cooling Capacity BTUx1000
24 = 24,000 BTU, etc.
9. Revision Level
A = original release, B = second release
Examples:
PHG4B421002X1A is a dual fuel, 14 SEER, 3-1/2 ton, large cabinet, single-stage heat, 100,000 BTU gas heat, 230 volt, single phase, low-NOx
model (first generation, first release)
FAN MOTOR
OUTDOOR FAN
COIL GUARD PANEL
OUTDOOR COIL
(Behind Panel)
CONTROL BOARD
TRANSFORMER
HIGH VOLTAGE
CONTACTOR
PRESSURE SWITCH
DRAFT INDUCER BLOWER
GAS VALVE
BURNER
ASSEMBLY
GAS HEAT
EXCHANGER
BLOWER MOTOR
TXV
INDOOR COIL
INDOOR BLOWER
COMPRESSOR
REMOVABLE
BASE RAILS
A0444-001
Unit Limitations
Model Unit Voltage
Unit Limitations
Applied Voltage Outdoor DB Temp
Min Max Max (°F)
PHG4A24 208/230-1-60 187 252 125
PHG4A30 208/230-1-60 187 252 125
PHG4B36 208/230-1-60 187 252 125
PHG4B42 208/230-1-60 187 252 125
PHG4B48 208/230-1-60 187 252 125
PHG4B60 208/230-1-60 187 252 125