Watts AERCO Benchmark BMK5000 User Manual

Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 8 – MAINTENANCE
OMM-0145_D • GF-218 • 11/2/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 131 of 213
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
SEC
ITEM
6 MOS. *
12 MOS.
24 MOS.
LABOR
TIME
8.2
Igniter-Injector
(BMK750 – 5000N only)
Inspect
Inspect, replace
if necessary
Replace
15 mins.
8.3
Pilot Burner
(BMK5000 & 6000 only)
Inspect
Inspect, replace
if necessary
Replace
15 mins.
8.4
Flame Detector
Inspect
Inspect, replace
if necessary
Replace
15 mins.
8.5
O
2
Sensor
Inspect
Inspect/Clean
15 mins.
4.4
Combustion Calibration
Check
Check
1 hr.
8.6
Testing of Safety Devices
See ASME
CSD-1 Chart
45 mins.
8.7
Burner
Inspect
2 hrs.
8.8
Condensate Drain Trap
Inspect
Inspect, Clean &
Replace
Gaskets
Inspect, Clean
& Replace
Gaskets
30 mins.
8.9
Air Filter
Clean
Replace
15 mins.
8.10
Refractory Replacement
(BMK5000-6000 only)
Repair if needed
8.13
Periodic Testing
Routine verification of functionality, various schedule
* 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#
Parts Serviced/Replaced
Doc Name
750 - 3000
58025-01
Ignitor, Flame Rod, Condensate trap O rings
TID-0131
5000/6000
58025-11
Pilot Burner, Flame Rod & Condensate trap
TID-0095

Watts AERCO Benchmark BMK5000 Specifications

General

Brand	Watts
Model	AERCO Benchmark BMK5000
Category	Boiler
Language	English