PB Heat Peerless Boilers GM Series, Installation, Operation & Maintenance Manual

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Burner inputs in Btu/hr for various meter timings and
heat values. (Table based on 2 cubic feet of gas through
meter).
(Metric) Burner inputs in Watts for various meter timings
and heat values. (Table based on .05 cubic meters of
gas through meter).
E. CHECK-OUT PROCEDURE
1. After starting the boiler, be certain all controls are
working properly. Check to be sure that the limit will
shut off the boiler in the event of excessive water
temperature. This can be done by lowering the limit
setting until the main burners shut down. When
proper limit function is confirmed, return the dial to
its previous setting.
2. Intermittent Ignition System—To check operation of
the ignition system safety shut-off features:
a. Refer to Figure 8.3 Operating Instructions for
placing the boiler in operation and Section
6, paragraph B, Intermittent Ignition System
Operating Sequence.
b. Observe boiler operation through one complete
cycle.
3. Low Water Cut-Off – Consult the manufacturer’s
instructions for the low water cut-off operational
check procedure. Note that low water cut-off feature
is incorporated in the Hydrolevel 3200 Control with
standard Electro-Well.
4. Check the system to make sure there are no leaks
or overfilling problems which might cause excessive
make-up water to be added. Make-up water causes
liming in the boiler and brings in oxygen. Oxygen
can cause severe damage to the boiler though
oxygen corrosion pitting.
5. Check the expansion tank and automatic fill valve (if
used) to confirm that they are operating correctly. If
either of these components causes high pressure in
the system, the boiler relief valve will weep or open,
allowing fresh water to enter the system.
6. Do not allow the system controls to subject the boiler
to excessively low water temperatures, which would
cause condensation of flue gases and corrosion of
the boiler. Operate the boiler at a temperature above
130°F (54°C). Adjust the boiler limit as required to
maintain boiler temperature above this level.
7. Check the general condition of the system including
piping support, joints, etc. Check cleanliness of the
radiators, baseboard units and/or convectors. Clean
them to the extent possible. If radiators do not heat
evenly, vent any remaining air from them.
8. Review operation and User’s Information Manual
with end-user.
9. Complete the Warranty Card and submit it to PB
Heat.
10. Hang the Installation, Operation and Maintenance
Manual and User’s Information Manual in an
accessible position near the boiler.
START-UP PROCEDURES
Table 8.1a: Meter Conversion – Natural Gas
Table 8.1b: Meter Conversion – Natural Gas
Time that
meter is
read (sec)
Heat Value of Gas
(Btu/cubic foot)
1,000 1,025 1,050
15 480,000 492,000 504,000
20 360,000 369,000 378,000
25 288,000 295,200 302,400
30 240,000 246,000 252,000
35 205,714 210,857 216,000
Time that
meter is
read (sec)
Heat Value of Gas
(kJ/cubic meter)
37,300 38,200 39,100
15 124,333 127,333 130,333
20 93,250 95,500 97,750
25 74,600 76,400 78,200
30 62,167 63,667 65,167
35 53,286 54,571 55,857