J4AH4P Installation Manual
5
2.1 UNIT DIMENSIONS
NOTE: 25” CLEARANCE IS REQUIRED IN THE FRONT 
OF THE UNIT FOR FILTER AND COIL MAINTENANCE.
DIMENSIONAL DATA
41-3/8"[1050] 18-1/8"[ 460] 20-1/2"[520] 16"[406] 101/114 [46]/[52]
24
36
125/141 [57]/[64]
60 54-1/2"[1385] 22"[560] 24"[610] 19-1/2"[496]
MODEL SIZE
Dimensions inch [mm]
SUPPLY 
DUCT "A" 
UNIT HEIGHT 
"H" IN. [mm]
UNIT WIDTH 
"W" IN.[mm]
UNIT LENGHT
"D" IN.[mm]
UNIT WEIGHT 
/SHIPPING WEIGHT 
(LBS.[kg])
159/177 [72]/[80]
46-1/2"[1180]
19-5/8"[500] 21-5/8"[550] 18"[456]
UPFLOW UNIT SHOWN;
UNIT MAY BE INSTALLED UPFLOW, DOWNFLOW, 
HORIZONTAL RIGHT OR LEFT AIR SUPPLY.
Fig.6 DIMENSIONS
SUPPLY AIR
FLANGES ARE PROVIDED 
FOR FIELD INSTALLATION
ELECTRICAL CONNECTIONS 
MAY EXIT TOP OR EITHER SIDE
HIGH VOLTAGE CONNECTION 7/8”, 
1-3/8”, 1-3/4” DIA KNOCK OUTS
LOW VOLTAGE CONNECTION
BREAKER SWITCH 
(FOR ELECTRIC HEATER ONLY)
VAPOR LINE CONNECTION COPPER (SWEAT)
LIQUID LINE CONNECTION COPPER (SWEAT)
AUXILIARY DRAIN CONNECTION 3/4
"
FEMALE PIPE THREAD (NPT)
AUXILIARY DRAIN CONNECTION 3/4
"
FEMALE PIPE THREAD (NPT)
PRIMARY DRAIN CONNCETION 3/4
"
FEMALE PIPE THREAD (NPT)
A
W
H
D
10
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