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VERIFICATION PROCEDURE AND ADJUSTMENT
IV. Measure new input rate (cover screw must be
installed). Repeat steps I.-IV until the input rate is
within +/-2% of the nameplate input rating.
V. If the actual input rate can not be set to within 2%
of the correct input rating by adjusting manifold
pressure, a change in gas orifi ce size is required.
Consult the boiler manufacturer for information on
correct orifi ce sizing. The specifi c gravity (G) and the
higher heating value (HHV) of the local natural gas
must be obtained from the local gas utility in order to
determine the proper orifi ce size.
Set Thermostat To Desired Room Temperature
Observe several operating cycles to verify proper operation.
Review All Instructions
Review all instructions shipped with this boiler with owner
or maintenance person. Instructions must be affi xed on or
adjacent to the boiler.
Complete and sign the “Installation and Check-Out
Certifi cate” on page 62
.
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