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TABLE 1: GAS RATE - CUBIC
FEET PER HOUR
SECONDS
SIZE OF TEST DIAL
FOR ONE
REV.
1/2 CU. FT.
10
180
12
150
14
129
16
113
18
100
20
80
22
82
24
75
26
69
28
64
30
60
32
56
34
53
36
50
38
47
40
45
42
43
44
41
46
39
48
37
50
36
52
35
54
34
56
32
58
31
60
30
1.
EXAMPLE: By actual measurement, it
takes 38 seconds for the hand on the 1-
cubic foot dial to make a revolution with
just a 100,000 BTUH furnace running.
Using this information, locate 28 sec-
onds in the first column of the table.
Read across to the column headed "1
Cubic Foot," where you will see that 95
cubic feet of gas per hour are consumed
by the gas heat section at that rate. Mul-
tiply 95 x 1050 (the BTU rating of the
gas obtained from the local gas com-
pany). The result is 99,750 BTUH which
is close to the 100,000 BTUH rating of
the equipment.
6
TROUBLESHOOTING
1
BEFORE CALLING A SERVICE-
PERSON:
A.
Check thermostat setting and
1 CU. FT.
insure thermostat is calling for heat
360
or cooling.
300
257
B. Check thermostat for lint, dust,
225
etc.
200
180
C. Check fuses or circuit break-
164
ers.
150
138
D. Check filters for excessive dust
129
accumulation and/or restric-
120
tion.
113
106
REPLACEMENT PARTS
100
95
Contact your local York parts distri-
90
bution center for authorized replace-
86
ment parts.
82
78
SOME EFFICIENCY DO'S
75
AND DON'TS
72
69
67
DON'T heat or cool unused areas.
Reduce supply and return air flow
64
to a minimum in areas which are
62
not living spaces (storage rooms,
60
garaged, basements, etc.).
DON'T be a "thermostat jiggler".
Moving your thermostat setting will
not make your system heat or cool
any faster. Adjust your thermostat
to a comfortable setting and leave it
there.
DON'T restrict air circulation. Plac-
ing furniture, rugs, etc. in such a
way that they interfere with air
vents will make your system work
harder to achieve a comfortable
temperature level. This requires
more energy, which means greater
cost to you.
858539-YUM-A-0512
DON'T heat or cool when you are
away. If you are going to be away
for a day or more, re-adjust your
thermostat accordingly. Your furni-
ture is far less demanding than you
are when it comes to comfort lev-
els. However, don't expect the sys-
tem to restore comfort conditions
immediately upon returning home.
It will take a little time.
DON'T locate lamps or other heat-
producing appliances (radios, TV's,
heaters, etc.) near your thermostat.
The heat from these items will give
your thermostat "false information"
about the temperature in the room.
DO select a comfortable thermostat
setting, but keep in mind that mod-
eration in temperature selection will
save energy.
DO turn on your kitchen exhaust
fan when cooking and your bath-
room exhaust fan when showering.
Also, make sure your clothes dryer
is properly vented. If these items
are neglected, an excess heat and
humidity condition may be created,
causing your air conditioning sys-
tem to run longer.
DO set your thermostat a few
degrees lower than normal several
hours before entertaining a large
group of people in a relatively small
area. People give off a consider-
able amount of heat and moisture
in a closed area.
DO keep drapes and Venetian
blinds
closed
when
These items provide insulation
against heat loss/gain.
DO contact a qualified service per-
son to make repairs or adjustments
to your system. They have been
trained to perform this service.
Unitary Products Group
practical.
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