349218-JIM-F-0512
Johnson Controls Unitary Products
25
Table 9:
J15 thru 25 ZJ Physical Data
Component
Models
J15ZJ
J18ZJ
J20ZJ
J25ZJ
Nominal Tonnage
15
17.5
20
25
AHRI COOLING PERFORMANCE
Gross Capacity @ AHRI A point (Btu)
183500
213700
242000
312000
AHRI net capacity (Btu)
178500
206000
235000
295000
EER
12.4
12.0
11.5
10.4
SEER
-
-
-
-
IEER
14.0
13.4
13.0
10.9
Nominal CFM
6000
5800
6200
10000
System power (KW)
14.40
17.10
20.10
28.50
Refrigerant type
R-410a
R-410a
R-410a
R-410a
Refrigerant charge (lb-oz)
System 1
12-8
12-8
12-0
12-8
System 2
12-8
13-8
12-0
13-8
System 3
12-8
12-8
12-0
13-0
System 4
12-8
12-8
12-0
12-8
AHRI HEATING PERFORMANCE
Heating model
24
32
24
32
24
32
24
32
Heat input (K Btu)
300
400
300
400
300
400
300
400
Heat output (K Btu)
240
320
240
320
240
320
240
320
AFUE%
-
-
-
-
-
-
-
-
Steady state efficiency (%)
80
80
80
80
80
80
80
80
No. burners
6
8
6
8
6
8
6
8
No. stages
2
2
2
2
2
2
2
2
Temperature Rise Range (ºF)
20-50
30-60
20-50
30-60
20-50
30-60
20-50
30-60
Gas Limit Setting (ºF)
195
195
195
195
195
195
195
195
Gas piping connection (in.)
1
1
1
1
1
1
1
1
DIMENSIONS (inches)
Length
180-19/32
Width
92
Height
52-5/8
OPERATING WT. (lbs.)
2609
2665
2697
2783
COMPRESSORS
Type
Scroll
Scroll
Scroll
Scroll
Quantity
4
4
4
4
Unit Capacity Steps (%)
25 / 50 / 75 / 100
25 / 50 / 75 / 100
25 / 50 / 75 / 100
25 / 50 / 75 / 100
CONDENSER COIL DATA
Face area (Sq. Ft.)
63.8
63.8
63.8
63.8
Rows
2
2
2
2
Fins per inch
20
20
20
20
Tube diameter (in.)
3/8
3/8
3/8
3/8
Circuitry Type
Split-face
Split-face
Split-face
Split-face
EVAPORATOR COIL DATA
Face area (Sq. Ft.)
25
25
25
25
Rows
4
4
4
4
Fins per inch
13.5
13.5
13.5
13.5
Tube diameter
3/8
3/8
3/8
3/8
Circuitry Type
Split-face
Split-face
Split-face
Split-face
Refrigerant control
TXV
TXV
TXV
TXV
