![background image](http://html1.mh-extra.com/html/ibc/ex-series/ex-series_installation-and-operating-manual_3222196065.webp)
63
5.0 Before operating the boiler
Danger
Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any
other appliance. If you smell gas vapors, do not try to operate any appliance - do not touch
any electrical switch or use any phone in the building. Immediately, call the gas supplier from
a phone located remotely. Follow the gas supplier’s instructions, or if the supplier is
unavailable, contact the fire department.
Do not use this boiler if any part has been under water. Immediately call a qualified service
technician to inspect the boiler and to replace any part of the control system and any gas
control that has been under water.
Should overheating occur or the gas supply fails to shut off, do not turn off or disconnect the
electrical supply to the pump. Instead shut off the gas supply at a location external to the
appliance.
5.1 Important pre-ignition checks
Once installation of the appliance is completed, and before operating the appliance, it is important to
review the following checklist of precautions:
5.1.1 Checklist for electrical conditions, ducting and water
connections
Checking electrical conditions
Check
Check all line voltage electrical connections to ensure all connections are correct and tight.
□
Check thermostat connections.
□
Thermostat in a suitable location.
□
Checking piping connections
Check
Ensure venting system is complete and seal tested.
□
Confirm any common venting system at the installation site is isolated and independent of
the EX boiler.
□
Confirm that any holes left from the removal of a previous boiler have been sealed, and that
any resizing of the old flue has been done.
□
Summary of Contents for EX Series
Page 62: ...Intentionally left empty...
Page 80: ...Intentionally left empty...
Page 121: ...Appendices Wiring diagrams Figure 73 Controller electrical diagram 119 Appendices...
Page 122: ...Figure 74 Internal wiring diagram EX 400 and EX 500 models 120 Section Appendices...
Page 123: ...Figure 75 Internal wiring diagram EX 700 and EX 850 models 121 Wiring diagrams...
Page 124: ...Figure 76 Sequence of Operation 122 Section Appendices...
Page 126: ...Intentionally left empty...
Page 128: ...126 Boiler parts diagram EX 400 and EX 500...