State Water Heaters SUF 130 300 Instruction Manual page 60

GENERAL
The Water Heater on page 11.
PRECAUTIONS
CAUTION
Do not operate the water heater if it has
been exposed to or exhibits the following:
Flooding at or above the level of the burner or controls.
External damage.
Firing without water.
Sooting.
Do not operate the water heater until all corrective steps
have been made by a qualified service agent.
page 15.
MAINTENANCE
Explosion Hazard
Overheated water can cause
water tank explosion.
Properly sized temperature and
pressure relief valve must be
installed in the opening provided.
MAINTENANCE SCHEDULE
TABLE 14
COMPONENT OPERATION
Tank
Removal
Tank
Removal
T&P Valve Test Operation
Vent System
DRAINING AND FLUSHING
To drain the water heater storage tank:
1.
2. Turn off the gas supply at the Main Gas Shutoff Valve if the
3.
4.
5.
6.
7.
8.
9.
10.
To Flush the tank perform the following steps:
1.
2.
3.
4.
60
INTERVAL REQUIRED
Semi Annually
Semi Annually UN-LIME®
Annually
Deposits
Semi Annually Test
Annually Termination
Reseal/Repair
Burn harzard.
Hot water discharge.
Keep hands clear of drain
valve discharge.