Bock Water heaters OT125, Инструкция по установке и эксплуатации, Страница: 42 / 56

Page 42
SECTION VI: MAINTENANCE
NOTICE TO THE OWNER: If you are having a mechanical problem with your water heater,
contact your service company or installer.
The required maintenance schedule for this water heater is shown in Table 8. Further detail is
given in this section for each component.
WATER PIPING
On an annual basis, all piping should be checked for leakage at joints, shut-off valves, and unions.
T&P RELIEF VALVE
On an annual basis, the temperature and pressure relief valve should be checked for proper
operation. First, attach a drain line to the valve to direct the water discharge to an open drain.
This is very important because the temperature of the discharge could be very hot. Second, lift
lever at the end of the valve several times. The valve should operate freely and return to its
original position properly. If water does not flow out of the valve, remove and inspect for
corrosion or obstructions. Replace with a new valve if necessary. Do not repair the faulty valve
as this may cause improper operation.
ANODE RODS
The water heater is supplied with a factory installed powered anode system to prevent corrosion
of internal tank components. The two anode rods in the tank are made from titanium and are
not consumed over time and, therefore, do not need to be removed and inspected.
The powered anode module and status LED are mounted on the control panel underneath the
control enclosure cover. The status LED is located on the right side of the panel. When the
tank is filled with water and the heater is connected to the power supply, the status LED will
be green. If the LED is flashing red, this indicates a system error. Refer to Table 14 in Section
VII: Troubleshooting for possible causes and remedies when the LED is flashing red. Check the
status LED every three months to ensure proper operation.
NOTICE TO THE OWNER: The water heater must be connected to the power supply for the
powered anode system to operate. DO NOT DISCONNECT THE WATER HEATER FROM THE
POWER SUPPLY FOR AN EXTENDED PERIOD OF TIME. WITHOUT POWER, THE ANODE SYSTEM
WILL NOT BE CAPABLE OF PROVIDING CORROSION PROTECTION. When the power switch to
the right of the display is OFF and there is a connection to the power supply, the powered
anode system will still function. If the water heater must be disconnected from the power
supply for an extended period, the tank must be drained. Refill the tank prior to
reconnecting the water heater to the power supply.
Table 8: Maintenace Schedule
Component Operation Interval Required
Water piping Check for leaks Annually Repair when necessary
T&P Relief Valve Verify operation Annually Proper operation
Powered Anode System Check status LED 3 months Verify "green" LED status
Tank Sediment removal 6 months Flush tank
Vent System Inspect Annually
Terminations are clear; joints
are sealed; proper support
Condensate Trap Inspect 6 months Remove sediment
Combustion System Measurements Annually
Check inlet gas pressure; take
combustion reading (O2%)