22
Servicing should only be performed by a Quali
fi
ed Service Technician
MAINTENANCE
Follow the service and maintenance procedures given throughout this service handbook and in component
literature shipped with the water heater. Failure to perform the service and maintenance could result in
damage to the water heater or system. Failure to follow the directions in this service handbook and component
literature could result in severe personal injury, death, or substantial property damage.
The water heater should be inspected annually only by a quali
fi
ed service technician. In addition, the
maintenance and care of the water heater designated in Table 5 and explained on the following pages must
be performed to assure maximum water heater ef
fi
ciency and reliability. Failure to service and maintain the
water heater and system could result in equipment failure.
Electrical shock hazard – Turn off power to the water heater before any service operation on the water
heater except as noted otherwise in this service handbook. Failure to turn off electrical power could result in
electrical shock, causing severe personal injury or death.
Review with owner
1. Emphasize the need to perform the maintenance schedule speci
fi
ed in this service handbook.
2. Remind the owner of the need to call a quali
fi
ed service technician should the water heater or system
exhibit any unusual behavior.
3. Remind the owner to follow the proper shutdown procedure and to schedule an annual maintenance.
4. Inspect any problems reported by the owner and correct before proceeding.
Inspect water heater area
1. Verify that water heater area is free of any combustible materials, gasoline and other
fl
ammable vapors
and liquids.
2. Verify that air intake area is free of any of the contaminants listed in the XP Water Heater Instruction
Manual. If any of these are present in the water heater intake air vicinity, they must be removed. If they
cannot be removed, reinstall the air and vent lines per this Service Handbook and the XP Water Heater
Instruction Manual.
Inspect water heater interior
1. Remove the front access cover and inspect the interior of the water heater.
2. Vacuum any sediment from inside the water heater and components. Remove any obstructions.
Clean condensate trap
1. Inspect the condensate drain line, condensate PVC
fi
ttings, and condensate trap.
2. Remove the PVC cap retaining screw from the PVC cap (See Figure 5).
3. Remove the 2 inch PVC cap with the switch located at the top of the trap (See Figure 5).
4. Remove any sediment in the trap.
5. Fill with fresh water until the water begins to pour out of the drain.
6. Replace the cap. Press the cap onto the trap until the cap makes contact with the drain.
7. Replace the retaining screw.
IMG00846
TO FLOOR DRAIN
2" PVC CAP WITH
BLOCKED DRAIN SWITCH
CONDENSATE FROM
HEAT EXCHANGER
1/2" (12.7mm) PVC ELBOW
( FIELD SUPPLIED)
RETAINING SCREW
Figure 5. Condensate Trap
