5803641-JIM-B-0620
24
Johnson Controls Ducted Systems
Table 10: Physical Data
JA3 thru A5ZJ Two Stage Gas Heat Physical Data
Component
Models
JA3ZJ
JA4ZJ
JA5ZJ
Nominal Tonnage
3.0
4.0
5.0
AHRI COOLING PERFORMANCE
Gross Capacity @ AHRI A point (MBh)
36000
48500
59000
AHRI net capacity (MBh)
35000
47000
57000
EER
12.2
12.2
12.2
SEER
14.5
15
14.5
Nominal CFM
12000
1600
2000
System power (KW)
2.87
3.85
4.67
Refrigerant type
R-410A
R-410A
R-410A
Refrigerant charge (lb-oz)
System 1
6-8
8-6
7-8
System 2
-
-
-
AHRI HEATING PERFORMANCE
Heating model
N06
N08
N12
N06
N08
N12
N08
N12
N16
Heat input (K Btu)
60
80
120
60
80
120
80
120
160
Heat output (K Btu)
49
65
97
49
65
97
65
97
129
AFUE %
-
-
-
-
-
-
Steady state efficiency (%)
81.5
81
81
81.5
81
81
81
81
80.5
No. burners
4
4
6
4
4
6
4
6
8
No. stages
2
1
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
Temperature Rise Range (ºF)
20-50°F 25-65°F 50-80°F 20-50°F 25-65°F 40-70°F 25-65°F 35-65°F 45-75°F
Gas Limit Setting (ºF)
235°F
200°F
255°F
235°F
200°F
255°F
200°F
245°F
240°F
Gas piping connection (in.)
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
DIMENSIONS (inches)
Length
89
89
89
Width
59
59
59
Height
42
42
42
OPERATING WT. (lbs.)
740
775
770
COMPRESSORS
3
Type
Scroll
Scroll
Scroll
Quantity
1
1
1
Unit Capacity Steps (%)
100
100
100
CONDENSER COIL DATA
Face area (Sq. Ft.)
18.5
23.8
23.8
Rows
1
1
1
Fins per inch
23
23
23
Tube diameter (in./MM)
.71/18
.71/18
.71/18
Circuitry Type
2-pass Microchannel
2-pass Microchannel
2-pass Microchannel
EVAPORATOR COIL DATA
Face area (Sq. Ft.)
7.9
10.5
10.5
Rows
3
3
3
Fins per inch
15
15
15
Tube diameter
0.375
0.375
0.375
Refrigerant control
TXV
TXV
TXV
