Maintenance - Lochinvar EGS-I&S-01 Installation & Service Manual

EGS-I&S-01
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.
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.
10
CAUTION