3
TABLE OF CONTENTS
1 - Important Information .................................... 6
2 - Introduction .................................................... 7
3 - Component Listing .......................................... 8
4 - Locating Boiler .............................................. 12
5 - Hydronic Piping ............................................. 15
5.1 General .....................................................15
5.2 Special Conditions .......................................16
5.3 Safety Relief Valve and Air Vent ....................16
5.4 Trim Piping .................................................17
5.5 System Piping ............................................17
5.6 Low Water Cut Off .......................................18
5.7 Recommendation - Use of Strainer ................20
5.8 Central Heating System ...............................21
5.9 Domestic Hot Water Mode ............................21
5.10 Frost Protection Mode ................................21
5.11 Pump Protection .......................................21
6 - Combustion Air And Vent Piping .................... 22
6.1 General .....................................................22
6.2 Removal of Existing Boiler ............................22
6.3 Definitions
.................................................23
6.4 Securing Twin Pipe Polypropylene Venting ......... 23
6.5 Approved Venting Materials .........................24
6.6 Vent Termination ........................................24
6.7 Coaxial Venting Instructions .........................25
6.8 Twin Pipe Systems ......................................26
6.9 Flexible Vent System....................................29
6.10 Condensate Piping .....................................31
7 - Gas Supply Piping ......................................... 32
7.1 General .....................................................32
7.2 Leak Check Gas Piping .................................32
8 - Electrical Connections ................................... 33
8.1 General .....................................................33
8.2 Install Room Thermostat ..............................33
8.3 Electrical Connections ..................................33
8.4 Access To Connection Block ..........................34
8.5 Main Supply Connection ...............................34
8.6 Install Room Thermostat ..............................35
8.7 Optional Electrical Connections .....................36
8.8 Indirect Storage Tank ..................................37
9 - Start Up Procedure ........................................ 38
9.1 Central Heating System Heat Only ............... 38
9.2 Central Heating System Combi .....................39
9.3 System Start Up .........................................40
9.4 Fill Condensate Trap with Water ....................40
9.5 Control Panel..............................................41
9.6 Commissioning ...........................................42
9.7 Calibration Function.....................................42
9.8 De-Aeration Function ...................................43
9.9 Commission Set Up (Gas) ............................43
9.10 Chimney Sweep Function (CO2 Adjust) ..... 44
9.11 Combustion Adjustment Function ................44
9.12 Check Firing Rate.......................................44
9.13 Parameter Settings ....................................45
9.14 Description Of Parameters: Factory Settings...........45
9.15 Adjusting Maximum Heating Power...............47
10 - Operating instructions ................................ 48
10.1 Boiler Sequence Of Operation .....................48
10.2 Testing For Gas Leaks And Purging ........... 48
10.3 Boiler Controls ..........................................49
10.4 Boiler Operation ........................................50
10.5 Central Heating Mode ................................50
10.6 Domestic Hot Water Mode ..........................50
10.7 Frost Protection ........................................50
10.8 Pump ......................................................50
10.9 Low Water Pressure Sensor ........................50
11 - General Maintenance and Cleaning.............. 51
11.1 Beginning of Each Heating Season ............ 51
11.2 Maintenance And Routine Servicing .......... 52
11.3 Component Replacement And Cleaning ......... 52
11.4 Draining the Boiler ....................................53
11.5 Draining the Heating Circuit ........................53
11.6 Hydraulic Unit (DHW) ................................54
11.7 Cleaning The Cold Water Filter ....................54
11.8 Final Commissioning ..................................54
11.9 Final Assembly..........................................54
11.10 User Information .....................................55
11.11 Safety Flue Thermostat ................................. 55
11.12 Flue Pressure Switch ..................................... 55
11.13 Replacement Parts ...................................55
11.14 Automatic Calibration Function ............... 55
12 - Ratings And Capacities ................................ 56
12.1 Ratings and Capacity .................................56
12.2 Domestic Hot Water Specifications...............56
12.3 High Altitude Parameter .............................57
13 - Trouble Shooting ......................................... 58
13.1 Error Messages And Resetting The Boiler ....... 58
14 - Glossary ..................................................... 59
Appendix A - Wiring Diagrams ........................... 61
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: ......