Ratings And Capacities; Ratings And Capacity; Domestic Hot Water Specifications - UTICA BOILERS MAH-125 Installation, Operation And Maintenance Manual

12 TECHNICAL DATA

12.1 Ratings and Capacity

12.2 Domestic Hot Water Specifications

MAH-125
Parameter P71 *
Fan Speed (rpm)
Parameter P72 *
Fan Speed (rpm)
CO Limit (ppm)
MAC-150
Parameter P71 *
Fan Speed (rpm)
Parameter P72 *
Fan Speed (rpm)
CO Limit (ppm)
* To modify the fan speed see section 9.12.

12 - RATINGS AND CAPACITIES

CH Input, MBH
Model
Number
Maximum
MAH-125 125
MAC-150 125
MAH-165 164
MAC-205 164
(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.
*Max CH Supply temp 176° F (80°C)
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)
Natural gas (A)
17.4 mbar
7.0 in w.c.
0 - 2000 Ft
0 - 610 m
115
5,650
Natural gas (A)
17.4 mbar
7.0 in w.c.
0 - 2000 Ft
0 - 610 m
220
6,700
(1)
Heating
(1)(2) CH
Capacity, MBH *
Minimum
22 113
22 113
29.5 153
29.5 153
MAC-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
2000 - 4500 Ft
610 – 1370 m
60
5,100
40
1,150
2000 - 4500 Ft
610 – 1370 m
170
6,200
40
1,150
56
Net AHRI
(1)(3)
(2) AFUE%
Rating Water, MBH
98 95.0
98 95.0
133 95.0
133 95.0
MAC-205
29.5
205
26
180
0.50 GPM
5.00 GPM
4.65 GPM
3/4"NPT
3/4"NPT
LP gas (E)
27.4 mbar
11.0 in w.c.
0 - 2000 Ft
0 - 610 m
65
5,150
25
1,000
<400
LP gas (E)
29.8 mbar
12.0 in w.c.
0 - 2000 Ft
0 - 610 m
170
6,200
25
1,000
<400
240011941 REV B, [03/31/2018]
2000 - 4500 Ft
610 – 1370 m
40
4,900
2000 - 4500 Ft
610 – 1370 m
150
6,000