Nordyne TC060, Installation Instructions Manual

Page: 38 / 44

38
Table 12. Gas Flow Rate
Primary Gas Valve – The gas valve controls the
flow of gas to all of the burners. When the gas
valve is energized it automatically opens and
regulates the gas pressure in the manifold.
Secondary Gas Valve – The gas valve controls
the flow of gas to the high fire burners only.
Pressure Switch – The pressure switch veri-
fies that the inducer is drawing the combustion
gases through the heat exchanger. It also
senses a blocked condensate drain condition.
Vent Pressure Switch – The vent pressure
switch reacts to blockage in the vent or combus-
tion air piping.
Supply Air Limit Switch – The supply air limit
switch prevents the air temperature leaving the
furnace from exceeding the maximum outlet air
temperature.
Vent Safety Switch – The vent safety switch
shuts the furnace down if the outlet flue gas
temperature increases above 160°F. This switch
protects the plastic flue system and the inducer
from over-temperature conditions.
Flame Roll-Out Switch – This switch provides
flame roll-out protection to the furnace and
combustion air inlet pipe.
MAINTENANCE
It is recommended that the furnace be checked
yearly. At a minimum, this check should include
the following items.
!
WARNING:
To avoid electric shock, personal injury,
or death, disconnect the electric power
before performing any maintenance.
!
WARNING:
Holes in the vent pipe or heat exchanger
can cause products of combustion to
enter the home. Replace the vent pipe
or heat exchanger if leaks are found.
Failure to prevent products of com-
bustion from being circulated into the
living space can create potentially haz-
ardous conditions including carbon
monoxide poisoning that could result
in personal injury or death.
TIME FOR TIME FOR
ONE REVOLUTION ONE REVOLUTION
(SECONDS) 1 5 10 (SECONDS)
24 150 750 1500 74
26 138 692 1385 76
28 129 643 1286 78
30 120 600 1200 80
32 113 563 1125 82
34 106 529 1059 84
36 100 500 1000 86
38 95 474 947 88
40 90 450 900 90
42 86 429 857 92
44 82 409 818 94
46 78 391 783 96
48 75 375 750 98
50 72 360 720 100
52 69 346 692 102
54 67 333 667 104
56 64 321 643 106
58 62 310 621 108
60 60 300 600 110
62 58 290 581 112
64 56 281 563 114
66 55 273 545 116
68 53 265 529 118
70 51 257 514 120
72 50 250 500
GAS FLOW RATE (CUBIC FEET PER HOUR)
CUBIC FEET PER REVOLUTION OF
METER
1 5 10
49 243 486
47 237 474
46 231 462
45 225 450
44 220 439
43 214 429
42 209 419
41 205 409
40 200 400
39 196 391
38 191 383
38 188 375
37 184 367
36 180 360
35 176 353
35 173 346
34 170 340
33 167 333
33 164 327
32 161 321
32 158 316
31 155 310
31 153 305
30 150 300
CUBIC FEET PER REVOLUTION OF
METER