251934-YTG-G-0708
Johnson Controls Unitary Products
17
ZR180-300 Physical Data
Component
Models
ZR180
ZR240
ZR300
Nominal Tonnage
15
20
25
ARI COOLING PERFORMANCE
Gross Capacity @ ARI A point (Btu)
189
243
303
ARI net capacity (Btu)
183
235
288
EER
11.6
12.1
10.5
SEER
-
-
-
IPLV
12.4
13.8
11.3
Nominal CFM
6000
8000
10000
System power (KW)
14.40
20.10
28.50
Refrigerant type
R-410a
R-410a
R-410a
Refrigerant charge (lb-oz)
System 1
22
24
25
System 2
22
24
24-8
ARI HEATING PERFORMANCE
Heating model
24
32
24
32
24
32
Heat input (K Btu)
300
400
300
400
300
400
Heat output (K Btu)
240
320
240
320
240
320
AFUE %
-
-
-
-
-
-
Steady state efficiency (%)
80
80
80
80
80
80
No. burners
6
8
6
8
6
8
No. stages
2
2
2
2
2
2
Temperature Rise Range (ºF)
20-50
30-60
20-50
30-60
20-50
30-60
Gas Limit Setting (ºF)
195
195
195
195
195
195
Gas piping connection (in.)
1
1
1
1
1
1
DIMENSIONS (inches)
Length
180-19/32
Width
92
Height
52-5/8
OPERATING WT. (lbs.)
2360
2660
2760
COMPRESSORS
Type
Scroll
Scroll
Scroll
Quantity
2
2
2
Unit Capacity Steps (%)
50 / 100
50 / 100
50 / 100
CONDENSER COIL DATA
Face area (Sq. Ft.)
63.8
63.8
63.8
Rows
2
2
2
Fins per inch
20
20
20
Tube diameter (in.)
3/8
3/8
3/8
Circuitry Type
Split-face
Split-face
Split-face
EVAPORATOR COIL DATA
Face area (Sq. Ft.)
20
20
20.52
Rows
3
4
4
Fins per inch
13.5
13.5
13.5
Tube diameter
3/8
3/8
3/8
Circuitry Type
Intertwined
Intertwined
Intertwined
Refrigerant control
TXV
TXV
TXV
REHEAT COIL DATA
Face area (Sq. Ft.)
17.2
17.2
17.2
Rows
2
2
2
Fins per inch
13
13
13
Tube diameter
3/8
3/8
3/8
