Section 9 - Fault Finding
78
Installation and Maintenance
FAUL
T FINDING
9.1.27 Back-up Boiler no Temperature Rise Fault
Check if Back-up boiler is at a fault condition.
9.1.28 Number of Heat Pump Starts Exceeded
Is there a blockage in the pipework between Indoor and
Heat Pumps?
Are Heating and Hot Water circuits correctly sized?
If a blockage exists in internal pipework then remove it.
Remove blockage
Correctly size heating and hot water
circuits
NO
NO
YES
YES
9.1.29 No Central Heating but Hot Water works OK
Are room thermostats calling for heat?
Are the radiator valves open?
Is diverter valve stuck in hot water position?
Replace indoor unit primary PCB
Set room thermostats to call for heat
Open radiator valves
Replace diverter valve
NO
NO
NO
YES
YES
NO
Содержание Logic Air DHW IDEPLUHP180DUOPPSZ
Страница 80: ...80 Installation and Maintenance Appendix 1 1 SYSTEM SCHEMATICS 1 1 1 Schematics Key Legend...
Страница 81: ...Appendix 81 Installation and Maintenance 1 1 2 Logic Air Two Zone Pre Plumbed Cylinder with Integrated Buffer...
Страница 82: ...Appendix 82 Installation and Maintenance 1 1 3 Logic Air Single Zone Pre Plumbed Cylinder...
Страница 92: ...92 Installation and Maintenance Notes...
Страница 93: ...93 Installation and Maintenance Notes...