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284720-BIM-D-0909
(There must be clearance between Grommet & Nut)
0.02 – 0.08 in. (0.5 – 2mm)
UNIT CHASSIS
FIGURE 7 - ROTARY COMPRESSOR MOUNTING
TABLE 3: NATURAL GAS APPLICATION DATA - SINGLE STAGE
INPUT
AVAILABLE ON
MODELS
(MBH)
2, 2-1/2, 3 TON
45
2, 2-1/2 TON
70
3 TON
70
3-1/2, 4, 5 TON
80
3 TON
90
3-1/2 TON
108
4, 5 TON
108
4, 5 TON
135
1. Heating capacity valid for elevations up to 2000 feet above sea level. For elevations above 2,000 feet, rated capacity should be
reduced by 4% for each 1,000 feet above sea level.
2. Based on 1075 BTU/Ft.
3. The air flow must be adequate to obtain a temperature rise within the range shown. Continuous return air temperature should not
be below 55°F.
TABLE 4: NATURAL GAS APPLICATION DATA - TWO STAGE
AVAILABLE ON
INPUT (MBH)
MODELS
HIGH FIRE / LOW FIRE
2, 2-1/2 TON
3 TON
3 TON
4, 5 TON
108 / 70.2
4, 5 TON
135 / 87.75
1. Heating capacity valid for elevations up to 2000 feet above sea level. For elevations above 2,000 feet, rated capacity should be
reduced by 4% for each 1,000 feet above sea level.
2. Based on 1075 BTU/Ft.
3. The air flow must be adequate to obtain a temperature rise within the range shown. Continuous return air temperature should not
be below 55°F.
10
OUTPUT
1
(MBH)
36
56
56
64
72
87
87
108
3
.
1
OUTPUT (MBH)
HIGH FIRE/LOW FIRE
70 / 45.5
56 / 36.4
70 / 45.5
56 / 36.4
90 / 58.5
72 / 46.8
87 / 56.2
108 / 70.2
3
.
2
GAS RATE
NUMBER OF
3
BURNERS
FT.
/HR.
42
65
65
74
84
100
100
126
2
GAS RATE
HIGH FIRE/LOW FIRE
65 / 42
65 / 42
84 / 54
100 / 65
126 / 82
MOUNTING STUD
NUT
COMPRESSOR BASE
GROMMET
TEMP. RISE ºF AT
FULL INPUT
MIN.
2
25
3
30
3
25
3
25
4
30
4
45
4
35
5
45
3
NUMBER OF
FT.
/HR.
BURNERS
3
3
4
4
5
Johnson Controls Unitary Products
3
MAX.
55
60
55
55
60
75
65
75
TEMP. RISE ºF AT
3
FULL INPUT
MIN.
MAX.
30
60
25
55
30
60
35
65
45
75
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