Returning The Boiler To Service After Shutdown; Recommended Periodic Testing - Watts Aerco Benchmark BMK750 Operation And Service Manual

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

8.11 RETURNING THE BOILER TO SERVICE AFTER SHUTDOWN

After a prolonged shutdown (one year or more), the following procedures must be followed:
Placing the Boiler Back in Service After A Prolonged Shutdown Instructions
1. Review installation requirements included in Section 2 of the Benchmark 750-6000 with
Edge [i]: Install-Startup Manual (OMM-0144, GF-217).
2. Inspect all piping and connections to the unit.
3. Inspect exhaust vent and air inlet duct work (if applicable).
4. Perform initial startup per Section 4 of this guide.
5. Perform the instructions in Section 5: Safety Device Testing, above, and all scheduled
procedures described Section 8: Maintenance.

8.12 RECOMMENDED PERIODIC TESTING

WARNING!
Periodic testing of all boiler controls and safety devices is required to ensure they continue to
operate as designed. Precautions must be taken while tests are being performed to protect
against bodily injury and property damage. The owner or user of an automatic boiler system
should set up a formal system of periodic preventive maintenance and testing. Tests should
be conducted on a regular basis and the results recorded in a log-book.
TABLE 8-3: Recommended Periodic Testing
ITEM
NOTE: Refer to indicated sections of this manual and the Benchmark 750-6000 with Edge [i]:
Install-Startup Manual (OMM-0144, GF-217) for detailed procedures.
Gauges, monitors
and indicators
Instrument and
equipment settings
Firing Rate Control
Flue, vent, stack and
intake air duct
Spark Igniter-Injector
Air/Fuel Valve
position
OMM-0145_D • GF-218 •
11/2/2020
FREQUENCY ACTION BY
Daily Operator
Daily Operator
Weekly Operator
Semi-Annually Service Tech
Annually Service Tech
Monthly Operator
Weekly Operator
Weekly Operator
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
REMARKS
Visual inspection and record readings in
operator log
Visual check against factory recommended
specifications
Verify factory settings
Verify factory settings
Check with combustion calibration test
equipment (see Section 4.2: Tools &
Instruments for Combustion Calibration in this
guide), and the O sensor (see Section 8.4: O
2
Sensor in this guide).
Visually inspection condition and check for
obstructions
See Section 8.2: Ignitor-Injector of this guide.
Check position indicator dial. See Section 3.2:
Start Sequence in this guide.
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