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4.0 PRE-STARTUP INSPECTION
4.1 Minimum Equipment Required For Startup And Troubleshooting
Volt-Ohn Meter
Clamp-On Ammeter
Megohm Meter
Torque Wrench – inch lbs
Torque Wrench – foot lbs
4.2 Mechanical System Checks
4.2.1 Plumbing Connections Completed
Inlet / Makeup water?
Discharge / Outlet?
Drain / Blowdown?
Relief / Safety Valve discharge?
4.2.2 Feedpumps / Circulating Pumps
Pumps wired, connected and checked for proper rotation?
Is the boiler filled to the proper level with water?
4.2.3 System Flush
Has the System been flushed?
Has the unit been cleaned of all construction debris?
4.2.4 Valves
Are all valves in the proper open or closed positions?
4.3 Electrical System Checks
WARNING:
All
POWER
supplying boiler should be off and locked out with the unit(s) main power switch(es)
OFF
and
Locked out!
□
Inspect all components, external and internal, to assure that there has been no damage during shipment or
installation
□
Remove one of the unit’s control circuit transformer primary fuses. Then check the resistance phase-to-
phase for all three phases. Make sure that there are no short circuits phase-to-phase or phase-to-ground.
With a megger (500VDC minimum) check contactor load side terminals to ground. If a reading of <1 megohm is
obtained, consult the Factory
.
Replace the control transformer fuse which was previously removed.
□
Remove element access panel(s) and open doors to the electrical control panel(s). Run an inspection of the
tightness of all electrical connections (IE: at fuse lugs, power entrance lugs, contactors, heating elements).
All branch circuit connections should be tightened to 40 – 50 inch lbs. (actual value listed on components).
Torque to avoid component damage from heat build-up. This tightness inspection is vital, because the vibration
during shipment can often loosen electrical connections. If this is not done, damage may occur to component
parts when power is switched on, and those damaged parts will not be covered under the manufacturer’s
Limited Warranty.
NOTE:
See Maintenance Section on rechecking the torque on these components after an initial break-in period.
Typically one to two weeks after start-up and then at least annually
.
