SBD TANK TYPE HEATERS
SERVICE HANDBOOK
V.WATER PIPING
| Is the system properly sized? | yes | no | ||
| Is the system properly installed? | yes | no | ||
| Are there any water leaks? | yes | no | ||
| Does the installation have a recirculating system? | yes | no | ||
| If so, is it operational? | yes | no | ||
VI. | PROPER SEQUENCE OF OPERATION |
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| During standby does damper close on standby? | yes | no | ||
| During standby is pilot flame off? | yes | no | ||
| On a call for heat does thermostat close? | yes | no | ||
| On a call for heat does damper open completely? | yes | no | ||
| Does sparking begin at pilot? | yes | no | ||
| Is pilot flame established? | yes | no | ||
| If so, does sparking stop? | yes | no | ||
| Does main burner ignite? | yes | no | ||
| Does the thermostat satisfy? | yes | no | ||
| Does damper close? | yes | no | ||
| Comments: |
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VII. | SAFETY |
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| A. Gas |
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| Does pilot flame prove before main burner ignites? | yes | no | ||
| Does damper blade fully open before ignition sequence occurs? | yes | no | ||
| Is burner cover plate in place? | yes | no | ||
| Is burner floor shield in place? | yes | no | ||
| Does IID lockout occur after 30 sec. trial for ignition? (Propane models only) | yes | no | ||
| B. Water Temperature |
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| Is the thermostat adjusted to the lowest acceptable temperature? | yes | no | ||
| Does the installation have a mixing valve? | yes | no | ||
| If so, is it operational? | yes | no | ||
| What is the outlet temperature of the mixing valve? |
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| Is a properly rated temperature and pressure relief valve installed? | yes | no | ||
| C. Electrical |
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| Is the 120 VAC electrical power supply properly wired? | yes | no | ||
| Are all the SBD control covers in place? | yes | no | ||
| Is the 120 VAC electrical power supply properly fused? | yes | no | ||
| D. Flammables |
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| Are flammable materials located in the area of the water heater? | yes | no | ||
| Are flammable vapors located in the area of the water heater? | yes | no |
(This service checklist may be photo copied to assist with SBD service call.)
Technical Training Department | 53 |
Ashland City, TN ©2003 |