Ratings And Capacities; Ratings And Capacity; Domestic Hot Water Specifications - ECR International Utica Boilers MAH-125 Installation, Operation And Maintenance Manual

12 TECHNICAL DATA

12.1 Ratings and Capacity

MAH-125
MAC-150
MAH-165
MAC-205
*Max CH Supply temp 176° F (80°C)

12.2 Domestic Hot Water Specifications

Item
Input Ratings (MBH)
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)

12 - RATINGS AND CAPACITIES

CH Input, MBH
Model
Number
Maximum
125
125
164
164
(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
procedures.
(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
piping systems, etc.
Min
Max
Min
Max
(1)
Heating
(1)(2) CH
Capacity, MBH *
Minimum
Rating Water, MBH
22 113
22 113
29.5 153
29.5 153
MAC-150
22
153
19
136
2.9 psi (0.2 bar) - 116 psi (8.0 bar)
0.50 GPM
3.50 gpm
3.25 gpm
1/2"NPT
1/2"NPT
56
Net AHRI
(1)(3)
AFUE%
(2)
98 95.0
98 95.0
133 95.0
133 95.0
MAC-205
29.5
205
26
180
5.00 gpm
4.65 gpm
3/4"NPT
3/4"NPT
240011941 REV G, [06/30/2019]