Section 8. Maintenance; Maintenance Schedule - Watts AERCO Benchmark BMK750 Operation And Service Manual

Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 8 – MAINTENANCE

SECTION 8. MAINTENANCE

8.1 MAINTENANCE SCHEDULE

All Benchmark boilers 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 Table 8-1. For a complete inspection check list see
ASME CSD-1 chart.
WARNING!
Prior to servicing, ensure that the following guidelines are strictly observed:
•
Follow all Lockout/Tagout protocols in effect at the site.
•
Disconnect the AC power supply by turning off the service switch and AC supply circuit
breaker.
•
Shut off the 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.
TABLE 8-1: Maintenance Schedule
ITEM
SEC
Igniter-Injector
8.2
(BMK750 – 3000 only)
Pilot Ignition Rod
8.3
(BMK5000 & 6000 only)
8.4 Flame Detector
8.5 O Sensor
2
4.4 Combustion Calibration
8.6 Testing of Safety Devices
8.7 Burner
8.8 Condensate Drain Trap
8.9 Air Filter
Refractory Replacement
8.10
(BMK5000-6000 only)
8.13 Periodic Testing
* Only performed after initial 6-month period after initial startup.
In order to perform the maintenance tasks specified in Table 8-1, the following maintenance kits
are available from AERCO. All kits included a Technical Instruction Document (TID) with
instructions for performing the maintenance.
TABLE 8-2a: 12 Month Maintenance Kits
Model Kit#
750 - 3000 58025-01
5000/6000 58025-11
OMM-0145_A99 • GF-218 •
6 MOS. *
Inspect
Inspect
Inspect
Inspect
Check
Inspect
Routine verification of functionality, various schedule
Parts Serviced/Replaced
Ignitor, Flame Rod, Condensate trap O rings
Pilot Burner, Flame Rod & Condensate trap
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
9/18/2019
12 MOS. 24 MOS.
Inspect, replace
Replace
if necessary
Inspect, replace
Replace
if necessary
Inspect, replace
Replace
if necessary
Inspect/Clean
Check
See ASME
CSD-1 Chart
Inspect
Inspect, Clean & Inspect, Clean
Replace & Replace
Gaskets Gaskets
Clean Replace
Repair if needed
LABOR
TIME
15 mins.
15 mins.
15 mins.
15 mins.
1 hr.
45 mins.
2 hrs.
30 mins.
15 mins.
Doc Name
TID-0131
TID-0095
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