56
12 - RATINGS AND CAPACITIES
12 TECHNICAL DATA
12.1 Ratings and Capacity
Model
Number
CH Input, MBH
(1)
(1)(2) CH
Heating
Capacity, MBH *
(1)(3)
Net AHRI
Rating Water, MBH
(2)
AFUE%
Maximum
Minimum
MAH-125
125
22
113
98
95.0
MAC-150
125
22
113
98
95.0
MAH-165
164
29.5
153
133
95.0
MAC-205
164
29.5
153
133
95.0
(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)
MAH-125
Natural gas (A)
17.4 mbar
7.0 in w.c.
LP gas (E)
27.4 mbar
11.0 in w.c.
0 - 2000 Ft
0 - 610 m
2000 - 4500 Ft
610 – 1370 m
0 - 2000 Ft
0 - 610 m
2000 - 4500 Ft
610 – 1370 m
Parameter P71 *
Fan Speed (rpm)
115
5,650
60
5,100
65
5,150
40
4,900
Parameter P72 *
Fan Speed (rpm)
40
1,150
25
1,000
CO Limit (ppm)
<400
MAC-150
Natural gas (A)
17.4 mbar
7.0 in w.c.
LP gas (E)
29.8 mbar
12.0 in w.c.
0 - 2000 Ft
0 - 610 m
2000 - 4500 Ft
610 – 1370 m
0 - 2000 Ft
0 - 610 m
2000 - 4500 Ft
610 – 1370 m
Parameter P71 *
Fan Speed (rpm)
220
6,700
170
6,200
170
6,200
150
6,000
Parameter P72 *
Fan Speed (rpm)
40
1,150
25
1,000
CO Limit (ppm)
<400
* To modify the fan speed see section 9.12.
Item
MAC-150
MAC-205
Input Ratings (MBH)
Min
22
29.5
Max
153
205
Output Ratings (MBH)
Min
19
26
Max
136
180
Domestic Water Pressure
2.9 psi (0.2 bar) - 116 psi (8.0 bar)
Minimum Flow Rate
0.50 GPM
Maximum Flow Rate
3.50 gpm
5.00 GPM
Flow Rate 77°F (43°C) Temp. Rise
3.25 GPM
4.65 GPM
DHW Supply Connection Size
1/2"NPT
3/4"NPT
Cold Water Input Connection Size
1/2"NPT
3/4"NPT
12.2 Domestic Hot Water Specifications
*Max DHW temp 140° F (60° C)
240011941 REV B, [03/31/2018]
Summary of Contents for MAC-150
Page 2: ...MAC 205 ...
Page 4: ...MAH 165 ...
Page 65: ...61 APPENDIX A WIRING DIAGRAMS A 1 MODELS 125 Heat Only 240011941 REV B 03 31 2018 ...
Page 66: ...62 APPENDIX A WIRING DIAGRAMS A 2 MODELS 165 Heat Only 240011941 REV B 03 31 2018 ...
Page 67: ...63 APPENDIX A WIRING DIAGRAMS A 3 MODELS 150 Combi 240011941 REV B 03 31 2018 ...
Page 68: ...64 APPENDIX A WIRING DIAGRAMS A 4 MODELS 205 Combi 240011941 REV B 03 31 2018 ...
Page 69: ...65 NOTES 240011941 REV B 03 31 2018 ...
Page 70: ...66 NOTES 240011941 REV B 03 31 2018 ...
Page 81: ...9 125 WITH ZONE CIRCULATOR PUMPS 125 with Zone Circulator Pumps PN 240011430 REV G 03 31 18 ...
Page 84: ...12 125 WITH ZONE VALVES PIPING DIAGRAM 125 with Zone Valves PN 240011430 REV G 03 31 18 ...
Page 90: ...18 165 with Zone Valves 165 WITH ZONE VALVES PIPING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 94: ...22 150 205 WITH ZONE PUMPS WIRING DIAGRAM 150 205 With Zone Pumps PN 240011430 REV G 03 31 18 ...
Page 102: ...30 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 103: ...31 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 104: ...32 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 105: ...33 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 110: ...38 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV G 03 31 18 ...
Page 111: ...39 NOTES PN 240011430 REV G 03 31 18 ...
Page 112: ......
Page 115: ......
