Ratings And Capacities; Ratings And Capacity; Domestic Hot Water Specifications - ECR International Utica Boilers MAH-100 Installation, Operation & Maintenance Manual

12 TECHNICAL DATA

12.1 Ratings and Capacity

Model
Number
MAH-100
MAC-115
MAH-125
MAC-150
MAH-165
MAC-205
(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.
*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)
**1/2" Copper stub adapters included with boiler

12 - RATINGS AND CAPACITIES

(1)
CH Input, MBH
Maximum Minimum
93.5 16.6
93.5 16.6
125 22
125 22
164 29.5
164 29.5
Min
Max
Min
Max
1/2"BSPT at boiler or
1/2" Copper Sweat**
1/2" BSPT at boiler or
1/2" Copper Sweat**
(1)(3)
Net AHRI
(1)(2)
CH Heating
Rating Water,
Capacity, MBH *
MBH
85.4 74
85.4 74
113 98
113 98
153 133
153 133
MAC-115 MAC-150
16.6 22
115.5 153
15.3 19
105.5 136
2.9 psi (0.2 bar) - 116 psi (8.0 bar)
0.55 GPM
2.64 gpm 3.50 gpm
2.35 gpm 3.25 gpm
1/2" NPT
1/2" NPT
64
(2)
AFUE%
95.0
95.0
95.0
95.0
95.0
95.0
MAC-205
29.5
205
26
180
0.50 GPM
5.00 gpm
4.65 gpm
3/4" NPT
3/4" NPT
240013354 REV A [07/01/2021]