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12 TECHNICAL DATA
12.1 Ratings and Capacity
*Max CH Supply temp 176° F (80°C)
*Max CH Supply temp 176° F (80°C)
12.2 Domestic Hot Water Specifications
12 - RATINGS AND CAPACITIES
CH Input, MBH
CH Input, MBH
Model
Model
Number
Number
Maximum
Maximum
-125
-125
125
125
-150
-150
125
125
-165
-165
164
164
-205
-205
164
164
(1) 1000 Btu/hr (British Thermal Units Per Hour)
(1) 1000 Btu/hr (British Thermal Units Per Hour)
(2) Heating Capacity and AFUE (Annual Fuel Utilization Efficiency) are based on DOE (Department of Energy) test
(2) Heating Capacity and AFUE (Annual Fuel Utilization Efficiency) are based on DOE (Department of Energy) test
procedures.
procedures.
(3) Net AHRI Ratings based on piping and pickup allowance of 1.15. Contact Technical Support before selecting boiler
(3) Net AHRI Ratings based on piping and pickup allowance of 1.15. Contact Technical Support before selecting boiler
for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive
for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive
piping systems, etc.
piping systems, etc.
Item
Input Ratings (MBH)
*Max DHW temp 140° F (60° C)
Output Ratings (MBH)
Domestic Water Pressure
Minimum Flow Rate
Maximum Flow Rate
Flow Rate 77°F (43°C) Temp. Rise
DHW Supply Connection Size
Cold Water Input Connection Size
*Max DHW temp 140° F (60° C)
(1)
(1)
Heating
Heating
(1)(2) CH
(1)(2) CH
Capacity, MBH *
Capacity, MBH *
Minimum
Minimum
Rating Water, MBH
Rating Water, MBH
22
22
113
113
22
22
113
113
29.5
29.5
153
153
29.5
29.5
153
153
-150
Min
22
Max
153
Min
19
Max
136
2.9 psi (0.2 bar) - 116 psi (8.0 bar)
3.50 gpm
3.25 gpm
1/2"NPT
1/2"NPT
54
Net AHRI
Net AHRI
(1)(3)
(1)(3)
AFUE%
AFUE%
(2)
(2)
98
98
95.0
95.0
98
98
95.0
95.0
133
133
95.0
95.0
133
133
95.0
95.0
-205
29.5
205
26
180
0.50 GPM
5.00 gpm
4.65 gpm
3/4"NPT
3/4"NPT
240012879 REV A, [01/31/2020]
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