Technical Guide

5126749-YTG-A-0715
Johnson Controls Unitary Products 11
DIMENSIONS
Unit Dimensions
Model
Dimensions
ABC
PCE4A2421 51-1/4 35-3/4 47
PCE4A3021 51-1/4 35-3/4 49
PCE4A3621 51-1/4 35-3/4 49
PCE4A4221 51-1/4 35-3/4 49
PCE4B4821 51-1/4 45-3/4 53
PCE4B6021 51-1/4 45-3/4 55
HIGH VOLTAGE
CONNECTION 7/8”
HIGH VOLTAGE
CONNECTION 1-3/32”
COMPRESSOR
ACCESS PANEL
CONDENSATE
DRAIN
BLOWER
ACCESS
PANEL
CONTROL ACCESS
PANEL
LOW VOLTAGE CONNECTION
HEAT EXCHANGER
ACCESS PANEL
B
A
C
A0379-001
COIL GUARD
Unit Clearances
1
Direction Distance (in.) Direction Distance (in.)
Top
2
36 Power Entry (Right Side) 36
Side Opposite Ducts 36 Left Side 24
Duct Panel 0 Bottom
3
1
1. A 1" clearance must be provided between any combustible material and the supply air duct work.
2. Units must be installed outdoors. Overhanging structures or shrubs must not obstruct condenser air discharge outlet.
3. Units may be installed on combustible materials made from wood or class A, B or C roof covering materials only if factory
base rails are left in place as shipped.
Electric Heat Minimum Supply Air
Model Voltage
Minimum Blower Speed for Electric Heat
Heater kW
258 1013151820 25
PCE4A2421 208/230-1-60 Low #1 Low #1 Med. Low #2 Med. #3 Med. Hi #4 -- -- -- --
PCE4A3021 208/230-1-60 Low #1 Low #1 Low #1 Med. Low #2 Med #3 High #5 -- -- --
PCE4A3621 208/230-1-60 Low #1 Low #1 Low #1 Low #1 Med. Low #2 High #5 -- -- --
PCE4A4221 208/230-1-60 -- Low #1 Low #1 Low #1 Low #1 Med. Low #2 Med. Hi #4 High #5 --
PCE4B4821 208/230-1-60 -- Low #1 Low #1 Low #1 Low #1 Low #1 Med. Low #2 Med. High #4 --
PCE4B6021 208/230-1-60 -- Low #1 Low #1 Low #1 Low #1 Low #1 Low #1 Med. Low #2 Med. High #4