OMM-0153_E
• 5/11/2023 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 64 of 124
CENTURION Installation, Operation & Maintenance Manual
SECTION 7: MAINTENANCE
SECTION 7:
MAINTENANCE
7.1 Maintenance Schedule
All Centurion Water Heaters require regular routine maintenance to keep up efficiency and
reliability. For best operation and life of the unit, the following routine maintenance procedures
should be performed in the time periods specified in the table below. For a complete inspection
check list see ASME CSD-1 chart.
W A R N I N G !
Prior to servicing, ensure that the following guidelines are strictly observed:
● Follow all Lockout/Tagout protocols in effect at the site.
● Disconnect power supply by turning off the service switch and AC supply circuit breaker.
● Shut off gas supply at the manual shut-off valve provided with the unit.
● Allow the unit to cool to a safe water temperature to prevent burning or scalding.
Maintenance Schedule
SEC
ITEM
6 MOS. *
12 MOS.
24 MOS.
LABOR
TIME
7.2
Igniter-Injector
Inspect
Inspect, replace if
necessary
Replace
15 mins.
7.3
Flame Detector
Inspect
Inspect, replace if
necessary
Replace
15 mins.
7.4
O
2
Sensor inspection and
calibration
Inspect
Inspect/Clean/
Calibrate
15 mins.
5.4
Combustion Calibration
Check
Check
1 hr.
7.5
Testing of Safety Devices
See ASME
CSD-1 Chart
45 mins.
7.6
Burner
Inspect
2 hrs.
7.8
Condensate Drain Trap
Inspect
Inspect, Clean &
Replace Gaskets
Inspect, Clean &
Replace Gaskets
30 mins.
7.8
Air Filter
Clean
Replace
15 mins.
7.9
Isolation Valve
Check
7.10
Recirculation Pump
Check
7.12
Periodic Testing
Routine verification of functionality, various schedule
* Only performed after initial 6-month period after initial startup.
The following maintenance kits are available from PVI. All kits include a Technical Instruction
Document (TID) with instructions for performing the tasks specified.
Maintenance Kits
Model
Kit#
Parts Serviced/Replaced
Doc Name
12 Month Maintenance Kit
CEN 2000/1600
58025-25 Ignitor, Flame Rod, Condensate trap O rings
TID-
0236
24 Month Maintenance Kit
CEN 2000/1600
58025-26 Burner & Blower gaskets, LWCO, air filter replacement
TID-
0237
58025-27 Burner & Blower gaskets, LWCO, air filter
cleaner