GENERAL INFORMATION
POWER BURNER
The initial
The sequence of operation of the power burner is provided on page 15. For detailed Power Burner Operation, Maintenance and Troubleshooting refer to the separate Power Burner Manual provided with this water heater.
THERMOSTAT
It is suggested the thermostat be turned to the lowest setting, which satisfies the hot water requirements of the system. This helps minimize scale formation in the heater.
HIGH LIMIT
The high limit (not adjustable) is factory set to cutout at 205°F (96°C). The high limit switch must be manually reset by depressing the reset button on front of the control when water temperature drops to about 180°F (82°C).
GAS AND AIR SUPPLY SPECIFICATIONS TABLE 10
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Min. Dynamic Gas |
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Supply Line | 8” w.c. (2 kPa) When heater is ON | |||
Pressure |
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Max. Static Gas |
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Supply Line | 14” w.c. (3.5 kPa) When heater is OFF | |||
Pressure |
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Gas Manifold | 4.7”w.c. (1.1 kPa) | 4.7”w.c. 1.1 kPa) | 4.7”w.c. (1.1 kPa) | |
Pressure | (Ref.)* | (Ref.)* |
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Gas Orifice Size | 1/2” | 11/16” |
| N/A |
Air Inlet Damper | 3** | 4.5** |
| 5.6** |
Dial Setting |
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Combustion | Flue Gas O2: 5 - 6.5%** |
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Emissions | (or CO2 reading 8 - 9%) |
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Range |
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*Note: Flue gas excess O2 below 3% may cause combustion chamber premature failure; flue gas excess O2 above 7% may cause rough operation or incomplete combustion. Final manifold pressure settings should be based on flue O2/CO2 reading!
**Note: Air inlet damper setting needs to be adjusted at field for direct vent and/or high elevation installations.
MAINTENANCE
GENERAL
KEEPAPPLIANCEAREACLEARANDFREEFROMCOMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS. (SEE WARNING PAGE 6).
Water heater maintenance includes periodic tank flushing and cleaning, and removal of lime scale. The power burner should be inspected and adjusted to maintain proper combustion. Refer
to the following table. A periodic inspection of the venting system should be made. Where used the water heating system circulating pump should be oiled.
MAINTENANCE SCHEDULE
Following are the instructions for performing some of the recommended maintenance. Power burner inspection and adjustment should be performed by a competent technician.
MAINTENANCE SCHEDULE
Component | Operation | Interval | Required |
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| Sediment |
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Tank | Removal | Monthly | Flushing |
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| Lime Scale |
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| Removal | Delimer | |
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Relief Valve | Inspect |
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| SAE No. 20 |
Circulating Pump(1) | Oiling | Four Months | |
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| motor oil |
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PowerBurnerBlower | Clean Inlet |
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Screen and | As Required | Soft Brush | |
| Blower Wheel |
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Power Burner and |
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Ignition Device(2) | Inspection |
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| Make sure gate |
Barometric Damper | Inspect | Every 3 | swings freely, |
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| Months | no spillage |
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| into room |
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Flue | Cleaning | As Required | Wire Brush |
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| Every 3 | Joints should |
Vent System | Inspect | Months | be sealed |
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(1)If furnished with oiling provisions.
(2)If flange gasket is damaged, it must be replaced.
ELECTRICAL SERVICING
CAUTION
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
FLUSHING
1.Turn off the heater electrical disconnect switch.
2.Open the drain valve and allow water to flow until it runs clean.
3.Close the drain valve when finished flushing.
4.Turn on the heater electrical disconnect switch.
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