Owner's Manual

70
adjusting screw counterclockwise to decrease
manifold pressure (gas rate) or clockwise to
increase. Adjustment of Regulator must be within
limitations set forth by Gas Supplier.
If necessary to increase or decrease manifold
pressure more than 0.3" water for natural gas to
provide rated input, remove orice plugs installed
in burner manifold and:
a) Increase orices one (1) drill size larger to reduce
manifold pressure to that recommended, or
b) Replace orices with one (1) drill size smaller to
raise manifold pressure to that recommended.
c) Reinstall orice plugs and recheck input rate.
5) After adjusting manifold pressure to that
recommended, make a nal check on input by
clocking the gas meter. Only the gas boiler should
be in operation (make sure that all other gas
appliances connected to the same meter are not
operating). Check the gas consumption indicated
by the gas meter for three minutes for conformity
to that required and as determined by the following
formula:
Gas Input, Cu. Ft. per 3 minutes =
(Input, Btu/hr.
(Heating Value of gas, Btu/Cu. Ft.) x 20
NOTE: In the above formula, (Input, Btu/hr.) is
that shown on the Boiler rating plate, and heating
value of gas, Btu/Cu. Ft., must be obtained from
the local gas company.
I.E. Input for 5-Section Boiler is 264,000 Btu/hr.
Heating value of gas is 1,000 Btu/cu. ft.
Therefore: 264,000 = 264,000 = 13.2 cu. ft./3 min.
1,000 x 20 20,000
6) Return all control settings to their normal
positions.
6.6 ADJUST AIR SHUTTERS on Main Burners by
loosening shutter lock screw and closing them until
yellow tips appear on ames, then open shutters
slowly until clearly dened inner cones may be seen.
Tighten screws to hold the air shutters in this position.
6.7 SEQUENCE OF CONTROLS
See Section 5.0 for the sequence of controls that
applies to the system installed.
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
6.8 CLEANING BOILER FLUES AND BURNERS
Boiler ues should be inspected annually and
burners should be cleaned annually. The proper
procedures for this maintenance, including removal
and reinstallation of canopy, burners, and pilot
assemblies, are detailed and diagrammed in the
"INSTALLATION, OPERATING AND SERVICE
INSTRUCTIONS" manual supplied with each
8H/8HE Series Boiler.
Heating Contractor Installation Date
Address Phone Number
For service or repairs to boiler, call our heating contractor. When seeking information on boiler, provide
Boiler, provide Boiler Model Number and Serial Number as shown on Rating Label.
Boiler Model Number Boiler Serial Number
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _
_8_ _ _ _ _ - ____ 6_ _ _ _ _ _ _