beautypg.com

Table 7—gas rate (cu ft/hr), Fig. 11—redundant automatic gas control valve, A warning – Carrier WEATHERMAKER 8000 58WAV User Manual

Page 12

Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".

background image

Table 7—Gas Rate (Cu Ft/Hr)

SECONDS

FOR 1

REVOLUTION

10
11
12

13
14

15
16
17
18
19

20
21
22

23
24

25
26
27
28

29

30
31
32
33
34

35
36
37
38
39

40
41
42
43
44

45
46
47
48
49

SIZE OF

TEST DIAL

1

cu ft

360
327
300
277
257

240
225

212

200

189

180
171
164
157
150
144
138
133
129
124

120

116
113
109
106

103

100

97
95
92

90

88
86

84
82

80
78
76
75

73

2

cu ft

720
655
600
555
514

480
450

424
400
379
360
343
327
313
300

288
277
267
257
248

240
232
225
218

212

206

200

195
189
185

180
176
172
167
164

160
157
153
150
147

5

CU ft

1800
1636
1500
1385

1286

1200

1125
1059

100

947

900

857
818

783
750

720
692
667
643
621

600
581
563
545
529
514
500
486
474
462

450
439
429
419
409

400
391
383
375
367

SECONDS

FOR 1

REVOLUTION

50
51
52
53
54

55
56

57
58
59
60
62
64

66
68

70
72
74
76
78
80
82
84

86
88

90
92
94
96
98

100

102

104
106
108

110
112

116

120

SIZE OF

TEST DIAL

1

cu ft

72
71
69

68

67

65
64

63
62
61

60
58
56
54
53

51
50
48
47
46
45
44
43
42
41

40
39
38
38
37

36
35
35
34
33

33
32
31
30

2

cu ft

144
141
138
136
133
131
129

126
124

122

120

116

112

109
106

103

100

97
95
92

90

88
86

84
82

80
78
76
75
74

72
71
69

68

67

65
64
62
60

Table 8—Canadian Orifice Size

5

cu ft

360
355
346
340
333
327
321

316
310
305

300
290
281
273
265
257
250
243
237
231

225

220

214
209
205

200

196
192
188
184

180
178
173
170
167

164
161
155
150

GAS

SEA LEVEL

0—2000 FT

HIGH ALTITUDE

2001—4500 FT

Natural

43

44

Propane

54

55

2. Set temperature rise.

Do not exceed the temperature rise range specified on the unit

rating plate. Determine the air temperature rise as follows:
a. Place duct thermometers in return and supply ducts as near

furnace as possible. Be sure thermometers do not "see" heat

exchangers so that radiant heat will not affect thermometer

readings. This is particularly important with straight-run

ducts.

b. When thermometer readings stabilize, subtract return-air

temperature from supply-air temperature to determine tem­

perature rise.

- c. Adjust air temperature rise by adjusting blower speed.

Increase blower speed to reduce temperature rise. Decrease

blower speed to increase temperature rise.

A90044

Fig. 11—Redundant Automatic Gas Control Valve

BURNER FLAME

A

WARNING

Disconnect the electrical power before changing the speed

tap. A failure to follow this warning can cause personal

injury.

d. To change motor speed taps, remove the motor tap lead and

relocate it on the desired terminal on the plug-in terminal

block/speed selector located on the blower housing. (See

Table 9.)

Table 9—Speed Selector

SPEED

TAP NO.*

Common

C

High

1

Med-High

2

Med-Low

3 .

Low

4t

* White wire from control box to common; black wire from control box to cooling

speed selection; red wire from control box to heating and constant fan speed

selection.

tSpped tap No. 4 is not used on 045-08 and 070-08 units.

12