TX Series Installation, Operation, and Maintenance Manual
Diversified Heat Transfer, Inc.
439 Main Road, Route 202
Towaco, New Jersey 07082
Page
23
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33
Phone: 800-221-1522
Website: www.dhtnet.com
SECTON 6: MAINTENANCE
To ensure efficient and safe operation, DHT recommends the servicing of the heater by a competent
service technician.
Turn off/disconnect all electric power before attempting any maintenance procedure.
SECTON 6.1: WATER HEATER MAINTENANCE
Lime or Sediment Buildup (Every 6 months)
To reduce the buildup of lime or sediment, it is recommended that the tank be flushed every six months.
1.
Drain the tank through the drain valve at the bottom of the tank until the water is clear.
2.
Inspect the tank for any deposits of lime or sediment.
3.
Remove lime, scale, or deposits using care not to damage the tank lining.
Temperature & Pressure Relief Valve (Every 12 months)
1.
Before manually testing the T&P relief valve, make sure the valve is piped in a manner that will
not cause harm or damage any surrounding area.
2.
Manually open the relief valve and allow it to flush out any lime or sediment deposits.
3.
Allow the relief valve to snap shut, making sure the seal closes properly.
NOTE:
Also refer to the manufacturer’s documentation for the T&P relief valve that was supplied with your unit
for additional maintenance/installation/setup instructions.
Others
Check all domestic and boiler water piping, joints, valves, and other fittings for any signs of leakage.
Repair or replace if necessary.
