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1133394-YIM-A-1014
24
Johnson Controls Unitary Products
Table 9: Physical Data
ZT037-061 Single Stage Gas Heat Physical Data
Component
Models
ZT037
ZT049
ZT061
Nominal Tonnage
3.0
4.0
5.0
AHRI COOLING PERFORMANCE
Gross Capacity @ AHRI A point (MBh)
39000
54000
66000
AHRI net capacity (MBh)
38000
52000
64000
EER
14.15
14.35
13.85
SEER
18.1
18
17.5
IPLV
-
-
-
Nominal CFM
1200
1600
2000
System power (KW)
2.70
3.64
4.62
Refrigerant type
R-410A
R-410A
R-410A
Refrigerant charge (lb-oz)
System 1
9-12
13-2
12-7
System 2
-
-
-
AHRI HEATING PERFORMANCE
Heating model
A05
A07
A09
A05
A07
A09
A07
A09
A13
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
1
1
1
1
1
1
1
1
1
Temperature Rise Range (ºF)
20-50°F 25-65°F 35-80°F 20-50°F 25-65°F 35-80°F 25-65°F 35-80°F 45-75°F
Gas Limit Setting (ºF)
200
235
290
200
235
290
235
290
240
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.)
922
960
968
COMPRESSORS
Type
2-stage scroll
2-stage scroll
2-stage scroll
Quantity
1
1
1
Unit Capacity Steps (%)
67/100
67/100
67/100
CONDENSER COIL DATA
Face area (Sq. Ft.)
12.2
12.2
12.2
Rows
1
1
1
Fins per inch
23
23
23
Tube diameter (in./MM)
.98/25
.98/25
.98/25
Circuitry Type
2-pass Microchannel
2-pass Microchannel
2-pass Microchannel
EVAPORATOR COIL DATA
Face area (Sq. Ft.)
10.56
10.56
10.56
Rows
3
4
4
Fins per inch
15
15
15
Tube diameter
0.375
0.375
0.375
Refrigerant control
TXV
TXV
TXV