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Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 4 – MAINTENANCE
SECTION 4: MAINTENANCE
4.1 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 4-1. For a complete inspection check list see
ASME CSD-1 chart.
The following maintenance kits are available through your local AERCO Sales Representative:
Model
Kit P/N
750-3000
58025-01 12 Month
58025-08 24-Month
750-1000
58025-17
58025-13 24-Month
1500-2000
58025-19
58025-10 24-Month
2500-3000
58025-18
WARNING!
Prior to servicing, ensure that the following guidelines are strictly observed:
• 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 4-1: Maintenance Schedule
ITEM
SEC
Igniter-Injector Kit (P/N
4.2
58023)
Flame Detector Kit
4.3
(P/N 24356-1)
Lean O
Sensor
2
4.4
(P/N 61026)
**
Combustion Calibration
4.5
Testing of Safety Devices
4.6
Burner
4.7
Condensate Drain Trap
4.8
Air Filter
*
Only performed after initial 6 month period after initial startup.
** Combustion Calibration instructions are in Section 4.4 of OMM-0121 (GF-205)
OMM-0122_D • GF-206 • 5/9/2019
Type
Components Serviced
Ignitor, Flame Rod & Condensate trap
58025-01 plus: Burner, LWCO, Air Filter replacement
Water/Fireside
Same as 58025-08 except clean Air Filter
58025-01 plus: Burner, LWCO, Air Filter replacement
Water/Fireside
Same as 58025-13 except clean Air Filter
58025-01 plus: Burner, LWCO, Air Filter replacement
Water/Fireside
Same as 58025-10 except clean Air Filter
6 MOS.
Inspect, replace
*Inspect
Inspect, replace
*Inspect
*Inspect
*Check
Inspect, Clean &
*Inspect
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
12 MOS.
24 MOS.
Replace
if necessary
Replace
if necessary
Inspect
Check
See ASME
CSD-1 Chart
Inspect
Inspect, Clean
Replace
& Replace
Gaskets
Gaskets
Clean
Replace
LABOR
TIME
15 mins.
15 mins.
15 mins.
1 hr.
45 mins.
2 hrs.
30 mins.
15 mins.
Page 39 of 164
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