Table 5: Meter Conversion - Natural Gas
Burner inputs in Btu/hr for various meter timings and
heat values. (Tables based on 2 cubic feet of gas through
meter).
Time that Heat Value of Gas
meter is (Btu/cubic foot)
read (sec)
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
I00
105
110
115
120
125
1000
288000
240000
205714
180000
160000
144000
130909
120000
110769
102857
96000
90000
84706
80000
75789
72000
68571
65455
62609
60000
57600
1025 1050
295200 302400
246000 252000
210857 216000
184500 189000
164000 168000
147600 151200
134182 137455
123000 126000
113538 116308
105429 108000
98400 100800
92250 94500
86824 88941
82000 84000
77684 79579
73800 75600
70286 72000
67091 68727
64174 65739
61500 63000
59040 60480
I;;I [O4:l=(O4[_eleJld :J;{ole]=lmlgl;|
I. 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. To check operation of the ignition system safety
shut-off features:
a. Standing Pilot:
i) Turn the gas control knob counterclockwise to
"PILOT". The main burner should go out
and the pilot should remain lit.
ii) Extinguish the pilot flame. Pilot gas flow
should stop within 2-I/2 minutes. Complete
shutdown is proven since the safety shut-off
valve has stopped main and pilot gas flow.
iii) Reset the boiler by following Lighting
Instructions.
3.
4.
5.
6.
7.
8.
9.
i0.
iv) Observe boiler operation through one
complete cycle
b. Intermittent Ignition System:
i) Turn gas supply off
it) Set thermostat or controller above room
temperature to call for heat. Watch for igniter
glow at pilot burner.
iii) Igniter will continue to glow for 30 seconds,
de-energize for 30 seconds, then re-energize
and glow for another 30 seconds. It will then
de-energize for 5 minutes before restarting
the sequence.
iv) Turn gas supply on.
v) Reset the boiler and conlrol by following
Operating Instructions.
vi) Observe boiler operation through one
complete cycle.
Low Water Cut-Off (if used) - Consult the
manufacturer's instructions for the low water cut-off
operational check procedure.
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.
Check the expansion tank and automatic fill valve (if
used) to confirm that they are operating con-ectly. 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.
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°E Adjust the boiler limit as required to maintain
boiler temperature above this level.
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.
Review operation and User's Information Manual
with end-user.
Complete the Warranty Card and submit it to
Peerless Heater Company.
Hang the Installation, Operation and Maintenance
Manual and User's Information Manual in an
accessible position near the boiler.
25
To Next Page
Loading...
