800SA/801SA: Installation, Start–Up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
29
Table 12 – Orifice Size* And Manifold Pressure (In. W.C.) For Gas
Input Rate
A10181
A10181a
6. Set thermostat heat anticipator.
a. Mechanical thermostat - Set thermostat heat anticipator to match
the amp. draw of the electrical components in the R-W circuit.
Accurate amp. draw readings can be obtained at the wires
normally connected to thermostat subbase terminals, R and W.
The thermostat anticipator should NOT be in the circuit while
measuring current.
(1.) Remove thermostat from subbase or from wall.
(2.) Connect an amp. meter as shown in
W subbase terminals or R and W wires at wall.
(3.) Record amp. draw across terminals when furnace is in
heating and after blower starts.
(4.) Set heat anticipator on thermostat per thermostat
instructions and install on subbase or wall.
b. Electronic thermostat: Set cycle rate for 4 cycles per hr.
A96316
Fig. 46 – Amp. Draw Check with Ammeter
WARNING
!
FURNACE OVERHEATING HAZARD
Failure to follow this caution may result in reduced furnace life.
Recheck temperature rise. It must be within limits specified on the
rating plate. Recommended operation is at the mid-point of rise range
or slightly above.
Table 13 – Gas Rate (Cu Ft./Hr.)
SECONDS
FOR 1
REVOLUTION
SIZE OF TEST
DIAL
SECONDS
FOR 1
REVOLUTION
SIZE OF TEST
DIAL
1 Cu
Ft.
2 Cu
Ft.
5 Cu
Ft.
1 Cu
Ft.
2 Cu
Ft.
5 Cu
Ft.
10
360 720 1800
50
72
144 360
11
327 655 1636
51
71
141 355
12
300 600 1500
52
69
138 346
13
277 555 1385
53
68
136 340
14
257 514 1286
54
67
133 333
15
240 480 1200
55
65
131 327
16
225 450 1125
56
64
129 321
17
212 424 1059
57
63
126 316
18
200 400 1000
58
62
124 310
19
189 379 947
59
61
122 305
20
180 360 900
60
60
120 300
21
171 343 857
62
58
116 290
22
164 327 818
64
56
112 281
23
157 313 783
66
54
109 273
24
150 300 750
68
53
106 265
25
144 288 720
70
51
103 257
26
138 277 692
72
50
100 250
27
133 267 667
74
48
97
243
28
129 257 643
76
47
95
237
29
124 248 621
78
46
92
231
R
Y W G
10 TURNS
THERMOSTAT SUBBASE
TERMINALS WITH
THERMOSTAT REMOVED
(ANITICIPATOR, CLOCK, ETC.,
MUST BE OUT OF CIRCUIT.)
HOOK-AROUND
AMMETER
EXAMPLE:
5.0 AMPS ON AMMETER
10 TURNS AROUND JAWS
=
0.5 AMPS FOR THERMOSTAT
ANTICIPATOR SETTING
FROM UNIT 24-V
CONTROL TERMINALS
