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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.
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:
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.
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Check thermostat connections.
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Thermostat in a suitable location.
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Checking piping connections
Check
Ensure venting system is complete and seal tested.
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Confirm any common venting system at the installation site is isolated and independent of
the boiler.
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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.
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Check that the water piping system is fully flushed and charged, and that all air has been
discharged through loosened bleed caps.
Note that it is possible to run all pumps from the touchscreen – without a call for heat. This
simplifies system filling and air bleeding (refer to "Performing a manual pump purge" in the
Controller
manual). Load must be assigned. Use a minimum water pressure of 12 psig and
confirm that the pressure relief valve is installed and safely drained.
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Summary of Contents for SL Series
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Page 12: ...Figure 5 Top view SL 40 399 G3 Figure 6 Bottom view SL 40 399 G3 8 Section Specifications...
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Page 64: ...Figure 40 Electric wiring connections 60 Section Installation...
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Page 110: ...Internal wiring diagram Figure 46 Internal wiring diagram 106 Section Appendices...
Page 111: ...Sequence of operations Figure 47 Sequence of Operation 107 Sequence of operations...
