3.After the water heater completes a heat-up cycle, check the water temperature at a faucet. Allow enough water to flow to ensure that the water temperature reflects the tank temperature. Adjust the water heater’s temperature setting as necessary.
a.Adjusting to a lower temperature setting will not immediately affect water temperature. Draw sufficient water or allow the water heater to sit until a heat-up cycle is initiated. Repeat step 3.
b.Adjusting to a higher temperature may not immediately affect water temperature. If a heat- up cycle begins, return to step 3. If a heat-up cycle does not begin, draw sufficient water or allow the water heater to sit until a heat-up cycle is initiated. Repeat step 3.
MAINTENANCE
The Single-wall Indirect is intended to provide a service life of many years. Components that require service, however, may be subject to failure. Failure to use the correct procedures or parts in these circumstances may make the water heater unsafe.
The owner should arrange to have the following inspections and simple maintenance procedure performed by qualified service personnel at the frequencies suggested.
1.Boiler and Domestic Water Piping (Annual) – Check all piping for signs of leakage at joints, unions, and shut-off valves. Repair as needed.
2.Temperature-Pressure Relief Valve (Annual)- The temperature-pressure relief valve should be checked to ensure that it is in operating condition. To check the relief valve, lift the lever at the end of the valve several times. The valve should seat properly and operate freely. If water does not flow, remove and inspect for obstructions or corrosion. Replace with a new valve of the recommended size as necessary. Do not attempt to repair the valve, as this could result in improper operation and a tank explosion. In areas with poor water conditions, it may be necessary to inspect the temperature-relief valve more often than once a year.
CAUTION
Before manually operating the valve, make sure that a drain line has been attached to the valve to direct the discharge to an open drain. Failure to take this precaution could mean contact with extremely hot water discharging from the valve during this checking operation.
If the temperature–pressure relief valve on the heater discharges periodically or continuously, it may be due to thermal expansion of water in a closed water supply system, or it may be due to a faulty relief valve. Thermal expansion is the normal response of water when it is heated. In a closed system, thermal expansion will cause the system pressure to build until the relief valve actuation pressure is equaled. Then the relief valve will open, allowing some water to escape, slightly lowering the pressure. Contact your water supplier or local plumbing inspector on how to control this situation.
ABOVE ALL, DO NOT PLUG THE TEMPERATURE AND PRESSURE RELIEF VALVE. THIS IS NOT A SOLUTION AND CAN CREATE A HAZARDOUS SITUATION.
3.Anode Inspection and Replacement - This water heater is equipped with multiple sacrificial anodes. Anodes protect the glass-lined tank from corrosion by sacrificing themselves through electrolysis. When the anode material is consumed, there is no more protection and corrosion of the tank accelerates. Inspection of the anode every year allows you to identify a spent anode and replace. Replace the anode when its diameter is 3/8 of an inch, or every other year, which ever is first. Aggressive, very hot and softened water causes rapid consumption of the anode, requiring frequent inspections. Anodes are available from your distributor or from the manufacturer listed on the rating plate.
To inspect or replace an anode:
The anodes on this water heater are easily accessible from the top of the heater making replacement simple and quick.
a.Turn the water heater electricity off for the zone containing the Single-wall Indirect. Flow water until the discharge is cool or allow enough time for the potable water to cool naturally. Connect a hose to the drain valve. Locate the hose’s discharge in an area where any remaining hot water will not cause any damage or injury.
