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TEMPRITE ROOF TOP AIR MAKE UP
UNIT #447 |
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Nov.23/99 |
Oct.6/00 |
Oct.15/01 |
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Oct.19/04 |
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MAIN REGULATOR LOCKUP: |
12 "wc |
15.0"wc |
13.0"WC |
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13.0"WC |
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GAS PRESSURES |
Gas Supply "wc |
14 |
13 |
11.7 |
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9.44 |
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Low Fire "wc |
-4 |
-4.2 |
-4 |
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High Fire "wc |
2.5 |
2.3 |
2.6 |
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7.4 |
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High Fire |
Low Fire |
High Fire |
Low Fire |
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COMBUSTION AIR: O2 |
O2% |
9.2 |
10.1 |
11.2 |
16.7 |
10.8 |
16.4 |
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CO ppm |
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98 |
161 |
113 |
6 |
7 |
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CO2% |
6.6 |
6.1 |
5.5 |
2.4 |
5.7 |
2.5 |
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Stack F |
488 |
453 |
207 C |
76 C |
226.7 C |
226.7 |
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Efficiency% |
74.8 |
86.9 |
76.20% |
80.70% |
76.1 |
76.1 |
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OVERFIRE DRAFT (high
fire) "wc |
-0.93 |
-0.15 |
-0.18 |
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-0.48 |
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SAFETY CUTOUTS: |
Low Gas "wc |
2.5 |
OK |
OK |
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OK |
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Hi Gas "wc |
12 |
OK |
OK |
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OK |
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Flame Failure (within 4 sec) |
OK |
OK |
OK |
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OK |
2 sec. |
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SETTINGS: |
Roomstat C |
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27 |
24 |
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24 |
75 F |
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Ductstat F |
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70 |
75 |
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70 F |
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COMMENTS: |
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Oct.19/04 |
1.) Changed out
downstream Fluid Power Actuator and installed new valve kit in gas valve |
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2.) New Flame Detector
installed |
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3.) Adjusted air linkage
to reduce CO (69 ppm) at low fire |
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Oct.15/01 |
1.)
CO was 1300 plus at low fire! Adjusted combustion air damper linkage to give
more air at low fire |
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2.) Adjusted supply gas regulator
from 12.7 to 11.7"WC |
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3.) Down stream Fluid Power valve
leaking by somewhat (no change made at this time) |
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4.) New ignition and detection
electrodes installed |
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5.) Heat exchanger inspected for
cracks |
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6.) Supervisory cock
greased (new pilot solenoid installed last year) |
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Oct.6/00 |
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Past Work Done: |
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Upstream Fluid Power gas valve
replaced |
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Combustion Air Fan cleaned |
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Pilot solenoid valve replaced |
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