Installer’s Guide

TABLE 12

GAS FLOW IN CUBIC FEET PER HOUR

2 CUBIC FOOT DIAL

SEC.

FLOW

SEC.

FLOW

SEC.

FLOW

SEC.

FLOW

8

900

29

248

50

144

82

88

9

800

30

240

51

141

84

86

10

720

31

232

52

138

86

84

11

655

32

225

53

136

88

82

12

600

33

218

54

133

90

80

13

555

34

212

55

131

92

78

14

514

35

206

56

129

94

76

15

480

36

200

57

126

96

75

16

450

37

195

58

124

98

73

17

424

38

189

59

122

100

72

18

400

39

185

60

120

104

69

19

379

40

180

62

116

108

67

20

360

41

176

64

112

112

64

21

343

42

172

66

109

116

62

22

327

43

167

68

106

120

60

23

313

44

164

70

103

124

58

24

300

45

160

72

100

128

56

25

288

46

157

74

97

132

54

26

277

47

153

76

95

136

53

27

267

48

150

78

92

140

51

28

257

49

147

80

90

144

50

g

Outlet Pressure Boss

Regulator

Adjustment

 

Inlet Pressure

 

 

Boss (opt.)

On/Off Switch

 

 

 

 

White-Rodgers 36G gas valve

 

h

On/Off Switch

 

White-Rodgers 36F gas valve

22

 

 

 

 

 

 

TABLE 13

 

 

 

 

 

Orifice

 

 

 

ALTITUDE ABOVE SEA LEVEL

 

Twist Drill

 

 

 

 

Size If

 

and Orifice Required At Other Elevations

 

Installed

 

 

At Sea

 

 

 

 

 

 

 

 

 

 

 

 

Level

 

 

 

 

 

 

 

 

 

 

 

 

2000

3000

4000

5000

6000

7000

8000

9000

10000

 

42

42

 

43

 

43

43

44

44

45

46

 

47

43

44

 

44

 

44

45

45

46

47

47

 

48

44

45

 

45

 

45

46

47

47

48

48

 

50

45

46

 

47

 

47

47

48

48

49

49

 

50

46

47

 

47

 

47

48

48

49

49

50

 

51

47

48

 

48

 

49

49

49

50

50

51

 

52

54

54

 

55

 

55

55

55

55

56

56

 

56

55

55

 

55

 

55

56

56

56

56

56

 

57

56

56

 

56

 

57

57

57

58

59

59

 

60

57

58

 

59

 

59

60

60

61

62

63

 

63

58

59

 

60

 

60

61

62

62

63

63

 

64

From National Fuel Gas Code - Table F-4

LIGHTING INSTRUCTIONS

! WARNING

DO NOT attempt to manually light the burner.

Failure to follow this warning could result in property damage, personal injury or death.

Lighting instructions appear on each unit. Each installation must be checked out at the time of initial start up to insure proper operation of all components. Check out should include putting the unit through one complete cycle as outlined below.

Turn on the main electrical supply and set the thermo- stat above the indicated temperature. The ignitor will automatically heat, then the gas valve is energized to permit the flow of gas to the burners. After ignition and flame is established, the flame control module monitors the flame and supplies power to the gas valve until the thermostat is satisfied.

TO SHUT OFF

For complete shutdown: Move the control switch on the main gas valve to the “OFF” position (See Figures 25 and 26). Disconnect the electrical supply to the unit.

! CAUTION

If this is done during the cold weather months, provi- sions must be taken to prevent freeze-up of all water pipes and water receptacles.

Failure to follow this warning could result in property damage.

Whenever your house is to be vacant, arrange to have someone inspect your house for proper tem- perature. This is very important in below freez- ing weather. If for any reason your furnace should fail to operate damage could result, such as frozen water pipes.

18-CD21D1-5

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Trane DD1D120A9H51B, UD1D120A9H51B Lighting Instructions, To Shut OFF, GAS Flow in Cubic Feet PER Hour Cubic Foot Dial