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SP ECIF ICATIONS - STAND ARD GAS HEAT
Model No.
Heat Input Type
Input
1st Stage
Btuh
2nd Stage
Output
1st Stage
Btuh
2nd Stage
Temperature
1st stage
Rise Range - °F
2nd
Stage
Thermal
Standard
1
Efficiency
Gas Supply Connections
Rec. Gas Supply Pressure -
Nat./ LPG
Thermal Efficiency at full input.
1
SP ECIF ICATIONS - LOW NOX G AS HEAT
Model No.
Heat Input Type
Input
1st Stage
Btuh
2nd Stage
Output
1st Stage
Btuh
2nd Stage
Temperature
1st stage 15 - 45
Rise Range - °F
2nd Stage
AFUE (single phase)
1
Thermal Efficiency
2
(three phase)
Gas Supply Connections
Rec. Gas Supply Pressure -
Nat./ LPG
Annual Fuel Utilization Efficiency based on U.S. DOE test procedures and FTC labeling regulations - 1 phase models only.
1
Thermal Efficiency at full input.
2
HIGH ALTIT UDE D ERATE
NOTE - Units may be installed at altitudes
up to 2000 ft. above sea level without any
modifications. At altitudes above 2000 ft.
units must be derated to match information
in the table shown. At altitudes above 4500
ft. unit must be derated 2% for each 1000 ft.
above sea level.
NOTE - This is the only permissible derate
for these units.
036,
074
036,
048,
048,
060
060
Standard
Medium
(1 Stage)
(1 Stage)
65,000
108,000
- - -
52,000
86,000
- - -
15 - 45
5 - 35
35 - 65
- - -
- - -
- - -
80%
80%
80%
036,
074
036,
048,
048,
060
060
Standard
(1 Stage)
(1 Stage)
65,000
- - -
52,000
- - -
5 - 35
35 - 65
- - -
- - -
- - -
81%
- - -
81%
81%
81%
81%
Heat Input Type
Standard (1 stage)
Medium (1 stage)
Medium (2 stage)
High (1 stage)
High (2 stage)
074
036,
074
048,
060
Medium
(2 Stage)
81,000
- - -
108,000
65,000
- - -
86,000
20 - 50
20 - 50
10 - 40
- - -
35 - 65
20 - 50
80%
80%
80%
1/2 in. NPT
7 in.w.g. / 11 in.w.g.
SING LE AND T HR EE P H A SE M O DELS
074
036,
048,
060
Medium
Medium
(2 Stage)
108,000
81,000
- - -
108,000
87,000
66,000
- - -
87,000
20 - 50
20 - 50
10 - 40
- - -
35 - 65
20 - 50
- - -
81%
81%
81%
1/2 in. NPT
7 in.w.g. / 11 in.w.g.
Gas Manifold Pressure
Altitude Feet
Natural Gas LPG/ Propane
2001 - 4500
2001 - 4500
2001 - 4500
3.0/1.7
2001 - 4500
2001 - 4500
3.0/1.7
Page 7
T H R EE P H AS E MO D ELS
048,
074
060
High
(1 Stage)
150,000
- - -
120,000
- - -
45 - 75
35 - 65
- - -
- - -
80%
80%
074
048,
074
060
High
(1 Stage)
150,000
- - -
121,000
- - -
45 - 75
35 - 65
- - -
- - -
- - -
81%
- - -
81%
81%
81%
in. w.g.
3.0
9.0
3.0
9.0
9.0/5.1
3.0
9.0
9.0/5.1
048,
074
060
High
(2 Stage)
113,000
150,000
90,000
120,000
30 - 60
25 - 55
45 - 75
35 - 65
80%
80%
048,
074
060
High
(2 Stage)
113,000
150,000
92,000
121,000
30 - 60
25 - 55
45 - 75
35 - 65
81%
- - -
81%
81%
Input Rate (Btuh)
60,000
100,000
100,000 / 75,000
139,000
139,000 / 104,000
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