York AFFINITY Series Installation Manual page 11

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TABLE 5: PROPANE (LP) 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. Propane applications are accomplished by field installation of a Propane Conversion Accessory, Model 1NP0807 for 2 thru 3 Ton
units with 33-1/2" tall cabinets and Model 1NP0808 for 3-1/2 thru 5 Ton units with 41-1/2" tall cabinets.
2. Heating capacity valid for elevations up to 2,000 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.
3. Based on 2500 BTU/Ft.
4. The air flow must be adequate to obtain a temperature rise within the range shown. Continuous return air temperatures should not
be below 55°F.
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TABLE 6: PROPANE GAS APPLICATION DATA - TWO STAGE
AVAILABLE ON
INPUT (MBH)
MODELS
HIGH FIRE / LOW FIRE
2, 2-1/2TON
3 TON
3 TON
4, 5 TON 108 / 70.2
4, 5 TON 135 / 87.75
1. Propane applications are accomplished by field installation of a Propane Conversion Accessory, Model 1NP0809 for 2 thru 3 Ton
units with 33-1/2" tall cabinets and Model 1NP0810 for 4 and 5 Ton units with 41-1/2" tall cabinets.
2. 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.
3. Based on 2500 BTU/Ft.
4. 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.
Johnson Controls Unitary Products
OUTPUT
2
(MBH)
36
56
56
64
72
87
87
108
3
.
2
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
.
3
GAS RATE NUMBER OF
3 BURNERS
FT. /HR.
18
28
28
32
36
43
43
54
3
GAS RATE
HIGH FIRE/LOW FIRE
28 / 18.2
28 / 18.2
36 / 23.4
43 / 27.95
54 / 35.1
280241-YIM-D-0909
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
4
MAX.
55
60
55
55
60
75
65
75
TEMP. RISE ºF AT
4
FULL INPUT
MIN. MAX.
30 60
25 55
30 60
35 65
45 75
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