54
11 - GENERAL MAINTENANCE AND CLEANING
11.6 Hydraulic Unit (DHW)
For special areas, where water is harder than 200 ppm or 12
grains/ gallon, install polyphosphate dispenser or equivalent
treatment system, compliant with current regulations.
LEGEND
A
DHW exchanger fixing screw
B
DHW priority sensor with filter
C
Boiler/system drain tap (150 unit only)
(
C-1 & C-2:
access to tap
C
- bottom of boiler)
D
Boiler / system filling tap (150 unit only)
E
DHW temperature NTC probe
F
Low water cutoff
11.7 Cleaning The Cold Water Filter
Boiler is fitted with cold water filter located on DHW hydraulic
assembly (
B
). To clean:
• Drain domestic hot water system. (C - 150 only)
•
165 Drain is field supplied/installed.
• Remove nut on DHW priority sensor unit using 18mm
wrench. (B)
•
Pull out flow sensor and its filter.
• Remove any impurities.
11.8 Final Commissioning
• Allow heating system to heat. Balance the system to
achieve temperature difference across heating supply and
return pipes at the boiler.
• Check system for proper volume and pressure. See page 4
for acceptable volume and pressure.
• Turn off boiler.
•
Thoroughly flush water pipe work. Clean filters in heating
return and supply water isolating valves.
• Repressurize the system.
11.9 Final Assembly
• Place front jacket in position over boiler. Ensure bottom is
located behind the control panel. Secure in position at top
using screws previously removed.
• If boiler is to be left in service with the User, set controls
and room thermostat.
• If boiler is not to be handed over immediately, close boiler
gas service valve and turn off electrical supply.
• If there is possibility of boiler being left during frost
conditions drain boiler and system. See section
11: Component Replacement Or Periodic Cleaning.
Manufacturer recommends attaching a label to the boiler
drawing attention to the fact that the system has been
drained.
Model MAC-150
Model MAC-205
B
A
Hydraulic Assembly (B)
F
E
NOTICE
When replacing and/or cleaning “O-rings” on hydraulic
assembly (DHW), use only Molykote 111 as a lubricant,
not oil or grease.
240011941 REV B, [03/31/2018]
Содержание MAC-150
Страница 2: ...MAC 205 ...
Страница 4: ...MAH 165 ...
Страница 65: ...61 APPENDIX A WIRING DIAGRAMS A 1 MODELS 125 Heat Only 240011941 REV B 03 31 2018 ...
Страница 66: ...62 APPENDIX A WIRING DIAGRAMS A 2 MODELS 165 Heat Only 240011941 REV B 03 31 2018 ...
Страница 67: ...63 APPENDIX A WIRING DIAGRAMS A 3 MODELS 150 Combi 240011941 REV B 03 31 2018 ...
Страница 68: ...64 APPENDIX A WIRING DIAGRAMS A 4 MODELS 205 Combi 240011941 REV B 03 31 2018 ...
Страница 69: ...65 NOTES 240011941 REV B 03 31 2018 ...
Страница 70: ...66 NOTES 240011941 REV B 03 31 2018 ...
Страница 81: ...9 125 WITH ZONE CIRCULATOR PUMPS 125 with Zone Circulator Pumps PN 240011430 REV G 03 31 18 ...
Страница 84: ...12 125 WITH ZONE VALVES PIPING DIAGRAM 125 with Zone Valves PN 240011430 REV G 03 31 18 ...
Страница 87: ...15 165 WITH ZONE CIRCULATOR PUMPS PIPING DIAGRAM 165 with Zone Circulator Pumps PN 240011430 REV G 03 31 18 ...
Страница 90: ...18 165 with Zone Valves 165 WITH ZONE VALVES PIPING DIAGRAM PN 240011430 REV G 03 31 18 ...
Страница 94: ...22 150 205 WITH ZONE PUMPS WIRING DIAGRAM 150 205 With Zone Pumps PN 240011430 REV G 03 31 18 ...
Страница 95: ...23 150 205 with Zone Valves 150 205 WITH ZONE VALVES PIPING DIAGRAM PN 240011430 REV G 03 31 18 ...
Страница 96: ...24 150 205 WITH ZONE VALVES WIRING DIAGRAM 150 205 With Zone Valves PN 240011430 REV G 03 31 18 ...
Страница 102: ...30 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Страница 103: ...31 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Страница 104: ...32 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Страница 105: ...33 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Страница 110: ...38 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV G 03 31 18 ...
Страница 111: ...39 NOTES PN 240011430 REV G 03 31 18 ...
Страница 112: ......
Страница 115: ......
