48
LEGEND
75/100 / 125
165
A
Heating supply connection
11/4” sweat
[31.75 mm]
11/2” sweat
[38.1 mm]
B
Drain Connection for
condensate
3/4" NPT [22.2 mm]
C
Gas shutoff connection
3/4" NPT [22.2 mm]
D
Optional Indirect DHW
connection (may exit right
or left)
3/4" sweat
[22.2 mm]
NA
E
Heating return connection
11/4” sweat
[31.75 mm]
11/2” sweat
[38.1 mm]
9.1
Central Heating System Connections
- HEAT ONLY
MAHF-75,100 & 125 HEATING ONLY
WITH
OPTIONAL INDIRECT DHW
CONNECTION
MAHF-75,100,125 HEATING ONLY
WITHOUT
OPTIONAL INDIRECT DHW
CONNECTION
9.2 Central Heating System Connections - Combi
MACF- 115, 150 & 205 COMBI (150 shown)
LEGEND
75/100/115/150
205
A
Heating supply
connection
11/4 " sweat [31.75
mm]
11/2 " sweat
[38.1 mm]
B
DHW outlet
1/2" sweat [12.7
mm]
3/4" sweat
[19.1 mm]
C
Drain connection for
condensate
3/4" NPT [22.2 mm]
D
Gas shutoff connection
3/4" NPT [22.2 mm]
E
Cold DHW inlet tap
1/2" sweat
[12.7
mm]
3/4" sweat
[22.2 mm]
F
Heating return
connection
11/4 " sweat
[31.75
mm]
11/2 " sweat
[38.1 mm]
9 - START UP PROCEDURE
240013503 REV A, [03/15/2022]
MAHF-165 HEATING ONLY
WITHOUT
INDIRECT DHW CONNECTION
B
E
A
C
D
F
A
B
C
E
E
A
B
C
E
A
D
C
B
Summary of Contents for UTICA BOILERS MACF-115
Page 2: ...MACF 150...
Page 4: ...MAHF 125...
Page 77: ...73 A 1 MODEL 75 100 Heat Only APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 78: ...74 A 2 MODEL 125 Heat Only APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 79: ...75 APPENDIX A WIRING DIAGRAMS A 3 MODEL 165 Heat Only 240013503 REV A 03 15 2022...
Page 80: ...76 APPENDIX A WIRING DIAGRAMS A 4 MODEL 115 Combi 240013503 REV A 03 15 2022...
Page 81: ...77 A 5 MODEL 150 Combi APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 82: ...78 A 6 MODEL 205 Combi APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 117: ...33 PN 240012875 REV D 03 15 2022 MODEL 75 100 HEAT ONLY 75 100 HEAT ONLY WIRING DIAGRAM...
Page 118: ...34 PN 240012875 REV D 03 15 2022 MODEL 125 HEAT ONLY 125 HEAT ONLY WIRING DIAGRAM...
Page 119: ...35 PN 240012875 REV D 03 15 2022 MODEL 165 HEAT ONLY 165 HEAT ONLY WIRING DIAGRAM...
Page 120: ...36 PN 240012875 REV D 03 15 2022 115 COMBI WIRING DIAGRAM MODEL 115 COMBI...
Page 121: ...37 PN 240012875 REV D 03 15 2022 MODEL 150 COMBI 150 COMBI WIRING DIAGRAM...
Page 122: ...38 PN 240012875 REV D 03 15 2022 MODEL 205 COMBI 205 COMBI WIRING DIAGRAM...
Page 128: ...44 PN 240012875 REV D 03 15 2022 LOW WATER CUTOFF LOW WATER CUTOFF DETAIL NO NO YES...
Page 133: ...49 PN 240012875 REV D 03 15 2022 3 FAULT SOLUTION SECTIONS...
