International comfort products RGH072 Installation Instructions Manual Download Page 27

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27

Specifications are subject to change without notice.

Table 6 -- Unit Wire/Fuse or HACR Breaker Sizing Data with Single Speed Indoor Fan Motor (cont)

UNIT

NOM.V---Ph---Hz

IFM

TYPE

w/ PWRD C.O.

NO P.E.

w/ P.E. (pwrd fr/ unit)

MCA

MAX FUSE or

HACR BRKR

DISC. SIZE

MCA

MAX FUSE or

HACR BRKR

DISC. SIZE

FLA

LRA

FLA

LRA

RGH072

(1---stage cool)

208/230--- 3--- 60

STD

38

50

37

166

42

60

42

170

MED

41/41

60/60

41/41

219

45/45

60/60

46/45

223

HIGH

46/45

60/60

47/46

235

50/49

60/60

52/50

239

460--- 3--- 60

STD

17

20

17

81

19

25

19

83

MED

19

25

19

108

21

25

21

110

HIGH

21

25

21

116

23

30

23

118

575--- 3--- 60

STD

13

15

13

68

17

20

17

72

MED

14

20

14

83

18

20

19

87

HIGH

17

20

17

97

21

25

22

101

RGH073

(2---stage cool)

208/230--- 3--- 60

STD

35

50

35

166

39

50

39

170

MED

39/38

50/50

39/39

219

42/42

50/50

43/43

223

HIGH

44/43

60/50

45/44

235

48/47

60/60

49/48

239

460--- 3--- 60

STD

17

25

17

81

19

25

19

83

MED

19

25

19

108

21

25

21

110

HIGH

21

25

21

116

23

30

23

118

575--- 3--- 60

STD

13

15

12

68

17

20

17

72

MED

14

20

14

83

18

20

18

87

HIGH

17

20

17

97

21

25

21

101

RGH090

(2---stage cool

208/230--- 3--- 60

STD

44

50

46

196

48

60

51

200

MED

46/46

50/50

48/48

234

50/49

60/60

53/52

238

HIGH

49

60

52

263

53

60

57

267

460--- 3--- 60

STD

21

25

21

97

22

25

23

99

MED

21

25

22

116

23

25

24

118

HIGH

23

25

24

131

25

30

27

133

575--- 3--- 60

STD

14

15

15

79

18

20

19

83

MED

15

20

15

83

19

20

20

87

HIGH

16

20

16

94

19

25

21

98

RGH102

(2---stage cool)

208/230--- 3--- 60

STD

44

50

46

196

48

60

51

200

MED

46/46

50/50

48/48

234

50/50

60/60

53/53

238

HIGH

50

60

53

263

53

60

57

267

460--- 3--- 60

STD

21

25

22

97

23

25

24

99

MED

22

25

23

116

23

25

25

118

HIGH

24

25

25

131

25

30

27

133

575--- 3--- 60

STD

16

20

16

79

20

25

21

83

MED

16

20

17

83

20

25

21

87

HIGH

17

20

18

94

21

25

22

98

RGH110

(2---stage cool)

208/230--- 3--- 60

STD

54

60

57

262

57

70

61

266

MED

59

70

63

318

63

70

67

322

HIGH

62/61

70/70

66/65

320

66/65

80/80

71/70

324

460--- 3--- 60

STD

25

30

26

125

26

30

28

127

MED

27

30

29

153

29

35

31

155

HIGH

28

30

30

154

30

35

32

156

575--- 3--- 60

STD

19

25

20

97

23

25

24

101

MED

20

25

21

108

24

25

25

112

HIGH

23

25

24

122

27

30

29

126

RGH120

(2---stage cool)

208/230--- 3--- 60

STD

52

60

55

287

56

60

60

291

MED

58

70

61

343

62

70

66

347

HIGH

61/60

70/70

65/64

345

65/64

80/70

69/68

349

460--- 3--- 60

STD

26

30

27

137

27

30

29

139

MED

28

30

30

165

30

35

32

167

HIGH

29

35

31

166

31

35

33

168

575--- 3--- 60

STD

19

25

20

107

23

25

25

111

MED

20

25

21

118

24

30

26

122

HIGH

23

25

24

132

27

30

29

136

See “Legend and Notes for Tables 6 and 7 on page 30.

Summary of Contents for RGH072

Page 1: ...stall Outside Air Hood 13 Economizer and Two Position Damper Hood Package Removal and Setup Factory Option 13 Economizer Hood and Two Position Hood 13 Step 9 Install Flue Hood 14 Step 10 Install Gas P...

Page 2: ...ability or operation FIRE EXPLOSION HAZARD Failure to follow this warning could result in personal injury or death Disconnect gas piping from unit when leak testing at pressure greater than 0 5 psig 3...

Page 3: ...Heat Exchanger Heating Capacity A Standard Static Motor B High Static Motor C Medium Static Motor Motor Options A None B Economizer w Barometric Relief OA Temp Sensor E Economizer w Barometric Relief...

Page 4: ...4 509 01 3808 00 Specifications are subject to change without notice Fig 1 RGH 072 102 Unit Dimensional Drawing sheet 1 of 2...

Page 5: ...509 01 3808 00 5 Specifications are subject to change without notice Fig 1 RGH 072 102 Unit Dimensional Drawing sheet 2 of 2...

Page 6: ...6 509 01 3808 00 Specifications are subject to change without notice Fig 2 RGH 110 120 Unit Dimensional Drawing sheet 1 of 2...

Page 7: ...509 01 3808 00 7 Specifications are subject to change without notice Fig 2 RGH 110 120 Unit Dimensional Drawing sheet 2 of 2...

Page 8: ...a tion requirements 2 Determine unit location from project plans or select unit location 3 Check for possible overhead obstructions which may interfere with unit lifting or rigging Step 1 Plan for Uni...

Page 9: ...cated ductwork at unit duct openings Install outdoor air hood Install flue hood Install gas piping Install condensate line trap and piping Make electrical connections Install other accessories Frame m...

Page 10: ...T WITHOUT THE WRITTEN AUTHORIZATION OF CARRIER CORPORATION 1 DEC 2 DEC 3 DEC ANG MATERIAL AUTHORIZATION NUMBER TITLE 1029120 CURB ASY ROOF ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS SIZE DRAWI...

Page 11: ...cross sectional dimensions are equal to or greater than the unit supply duct opening dimensions for the first 18 in 458 mm of duct length from the unit basepan Insulate and weatherproof all external...

Page 12: ...ainst water from higher level runoff and overhangs UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage All panels must be in place when rigging Unit is not designed for ha...

Page 13: ...omizer Hood and Two Position Hood NOTE If the power exhaust accessory is to be installed on the unit the hood shipped with the unit will not be used and must be discarded Save the aluminum filter for...

Page 14: ...0 m above sea level The input rating for altitudes above 2000 ft 610 m must be derated by 4 for each 1000 ft 305 m above sea level For natural gas applications gas pressure at unit gas connection must...

Page 15: ...e embossed raised section of the unit basepan in the condenser section See Fig 15 LOW VOLTAGE CONDUIT CONNECTOR HIGH VOLTAGE CONDUIT CONNECTOR BRASS FITTING FOR 3 TO 6 TON UNITS C13410 Fig 15 Thru Bas...

Page 16: ...ly tape per manufacturer s instructions 4 Pressure test all gas piping in accordance with local and national plumbing and gas codes before connect ing piping to unit NOTE Pressure test the gas supply...

Page 17: ...in per 10 ft 25 mm in 3 m of run Do not use a pipe size smaller than the unit connection 3 4 in Step 12 Make Electrical Connections ELECTRICAL SHOCK HAZARD Failure to follow this warning could result...

Page 18: ...ly WARNING FIRE HAZARD Failure to follow this warning could result in personal injury death or property damage Do not connect aluminum wire between disconnect switch and RGS unit Use only copper wire...

Page 19: ...onnection and moving it to the 200 v 1 4 in male terminal on the primary side of the transformer Refer to unit label diagram for additional information Voltage to compressor terminals during operation...

Page 20: ...line side terminals on the unit mounted non fused disconnect switch this will provide service power to the unit when the unit disconnect switch is open Other connection methods will result in the conv...

Page 21: ...with the accessory Locate the thermostat accessory on a solid wall in the conditioned space to sense average temperature in accordance with the thermostat installation instructions If the thermostat c...

Page 22: ...ise in space RH above control setpoint or a combination thermostat humidistat control device with isolated contact set for dehumidification control The humidistat is normally used in applications wher...

Page 23: ...iring for Hot Gas Re Heat Dehumidification System Rc Rh W1 G Y2 C O W2 B Y1 OAT RRS SRTN HUM D1 D2 V Vg X C G W2 W1 Y2 Y1 R THERMIDISTAT Unit CTB THERMOSTAT Connection not required Hot Gas Re Heat FIO...

Page 24: ...eturn Air smoke detectors require a relocation of the sensor module at unit installation See Fig 35 for the as shipped location Completing Installation of Return Air Smoke Sensor 1 Unscrew the two scr...

Page 25: ...inals marked OCCUPANCY on CTB Remove or cut jumper JMP 2 to complete the installation Step 14 Install Accessories Available accessories include Roof Curb Thru base connection kit must be installed bef...

Page 26: ...5 45 50 50 47 47 233 HIGH 45 50 47 258 48 60 51 262 460 3 60 STD 18 20 19 95 20 25 21 97 MED 19 25 20 114 21 25 22 116 HIGH 21 25 22 129 23 25 24 131 575 3 60 STD 13 15 13 77 17 20 17 81 MED 13 15 13...

Page 27: ...49 60 60 53 52 238 HIGH 49 60 52 263 53 60 57 267 460 3 60 STD 21 25 21 97 22 25 23 99 MED 21 25 22 116 23 25 24 118 HIGH 23 25 24 131 25 30 27 133 575 3 60 STD 14 15 15 79 18 20 19 83 MED 15 20 15 83...

Page 28: ...20 19 87 HIGH 16 20 16 92 19 25 21 96 RGH102 2 stage cool 208 230 3 60 STD 40 40 50 50 42 41 195 44 44 50 50 46 46 199 MED 41 41 50 50 43 43 199 45 45 50 50 47 47 203 HIGH 45 44 50 50 47 46 249 49 48...

Page 29: ...5 21 89 HIGH 17 20 18 94 21 25 23 98 RGH102 2 stage cool 208 230 3 60 STD 45 45 50 50 47 47 200 49 48 60 60 52 51 204 MED 46 46 50 50 49 48 204 50 50 60 60 53 53 208 HIGH 50 49 60 60 53 52 254 54 53 6...

Page 30: ...08 or 230 volts 3 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the following formula to determine the percentage of voltage i...

Page 31: ...HIN SPECIFIED RANGE j CHECK GAS PIPING FOR LEAKS j CHECK THAT INDOOR AIR FILTERS ARE CLEAN AND IN PLACE j CHECK THAT OUTDOOR AIR INLET SCREENS ARE IN PLACE j VERIFY THAT UNIT IS LEVEL j CHECK FAN WHEE...

Page 32: ...ODE SUBCOOLER BY CLOSING HUMIDISTAT WITH Y1 CLOSED OBSERVE j A REDUCTION IN SUCTION PRESSURE 5 TO 7 PSI EXPECTED j B DISCHARGE PRESSURE UNCHANGED j C LIQUID TEMPERATURE DROPS TO 50 TO 55_F RANGE j D L...

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