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46

Table 15 − 

Unit Wire/Fuse or HACR Breaker Sizing Data − Single Speed Indoor Fan Motor (cont)

UNIT

NO M. V-Ph-HZ

IFM

TYPE

ELEC. HTR

NO C.O. or UNPWR C.O.

w/ PWRD C.O.

CRHEATER

****00

Nom
(kW)

FLA

 NO P.E.

w/ P.E. (pwrd fr/unit)

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

MCA

MAX

FUSE or

HACR
BRKR

DISC. SIZE

MCA

MAX

FUSE or

HACR
BRKR

DISC. SIZE

FLA

LRA

FLA

LRA

FLA

LRA

FLA

LRA

 50HCQD09 (2-stage cool) 

208/230-3-60

STD

NONE

-

-

46

60

47

236

49

60

52

240

50

60

53

241

54

60

57

245

117A

7.8/10.4

21.7/25.0

73/77

80/80

72/76

258/261

76/81

80/90

77/80

262/265

77/82

80/90

78/82

263/266

81/85

90/90

82/86

267/270

110A

12.0/16.0

33.4/38.5

87/94

90/100

86/92

269/275

91/97

100/100

90/96

273/279

92/98

100/100

91/97

274/280

96/102

100/110

96/101

278/284

111A

18.6/24.8

51.7/59.7

110/120

110/125

107/116

288/296

114/124

125/125

111/120

292/300

115/125

125/125

112/121

293/301

119/129

125/150

117/126

297/305

112A

24.0/32.0

66.7/77.0

129/142

150/150

124/136

303/313

133/146

150/150

128/140

307/317

134/147

150/150

129/141

308/318

138/150

150/150

134/146

312/322

112A+117A

31.8/42.4

88.4/102.0

156/173

175/175

149/165

413/440

160/177

175/200

153/169

417/444

161/178

175/200

154/170

418/445

165/182

175/200

159/174

422/449

MED

NONE

-

-

49/49

60/60

51/51

278

53/52

60/60

55/55

282

54/53

60/60

56/56

283

57/57

70/70

61/61

287

117A

7.8/10.4

21.7/25.0

76/80

80/80

76/80

300/303

80/84

80/90

80/84

304/307

81/85

90/90

81/85

305/308

84/89

90/90

86/89

309/312

110A

12.0/16.0

33.4/38.5

91/97

100/100

89/95

311/317

94/101

100/110

94/99

315/321

95/102

100/110

95/101

316/322

99/105

100/110

99/105

320/326

111A

18.6/24.8

51.7/59.7

113/123

125/125

110/119

330/338

117/127

125/150

115/124

334/342

118/128

125/150

116/125

335/343

122/132

125/150

120/129

339/347

112A

24.0/32.0

66.7/77.0

132/145

150/150

128/139

345/355

136/149

150/150

132/144

349/359

137/150

150/150

133/145

350/360

141/154

150/175

138/149

354/364

112A+117A

31.8/42.4

88.4/102.0

159/176

175/200

153/168

455/482

163/180

175/200

157/173

459/486

164/181

175/200

158/174

460/487

168/185

175/200

162/178

464/491

HIGH

NONE

-

-

51

60

53

292

55

60

58

296

56

60

59

297

60

70

63

301

117A

7.8/10.4

21.7/25.0

78/82

80/90

78/82

314/317

82/86

90/90

83/87

318/321

83/87

90/90

84/88

319/322

87/91

90/100

88/92

323/326

110A

12.0/16.0

33.4/38.5

93/99

100/100

92/98

325/331

97/103

100/110

96/102

329/335

98/104

100/110

97/103

330/336

101/108

110/110

102/108

334/340

111A

18.6/24.8

51.7/59.7

116/126

125/150

113/122

344/352

119/129

125/150

117/127

348/356

120/130

125/150

118/128

349/357

124/134

125/150

123/132

353/361

112A

24.0/32.0

66.7/77.0

134/147

150/150

130/142

359/369

138/151

150/175

135/146

363/373

139/152

150/175

136/148

364/374

143/156

150/175

140/152

368/378

112A+117A

31.8/42.4

88.4/102.0

161/178

175/200

155/171

469/496

165/182

175/200

160/175

473/500

166/183

175/200

161/176

474/501

170/187

175/200

165/181

478/505

460-3-60

STD

NONE

-

-

21

25

22

118

23

25

24

120

23

25

24

120

25

30

26

122

116B

13.9

16.7

42

45

41

135

44

45

43

137

44

45

43

137

46

50

46

139

113B

16.5

19.8

46

50

45

138

48

50

47

140

48

50

47

140

50

50

49

142

114B

27.8

33.4

63

70

60

151

65

70

62

153

65

70

63

153

67

70

65

155

115B

33.0

39.7

71

80

67

158

73

80

69

160

73

80

70

160

75

80

72

162

MED

NONE

-

-

23

25

24

139

25

30

26

141

25

30

26

141

27

30

28

143

116B

13.9

16.7

44

45

43

156

45

45

45

158

46

50

45

158

48

50

47

160

113B

16.5

19.8

47

50

46

159

49

50

48

161

50

50

49

161

51

60

51

163

114B

27.8

33.4

64

70

62

172

66

70

64

174

67

70

65

174

68

70

67

176

115B

33.0

39.7

72

80

69

179

74

80

71

181

75

80

72

181

76

80

74

183

HIGH

NONE

-

-

24

30

25

146

26

30

27

148

26

30

27

148

28

30

29

150

116B

13.9

16.7

45

45

44

163

46

50

46

165

47

50

47

165

49

50

49

167

113B

16.5

19.8

49

50

48

166

50

50

50

168

51

60

50

168

53

60

52

170

114B

27.8

33.4

66

70

63

179

67

70

65

181

68

70

66

181

70

70

68

183

115B

33.0

39.7

73

80

70

186

75

80

73

188

76

80

73

188

77

80

75

190

575-3-60

STD

NONE

-

-

17

20

17

97

21

25

22

101

18

20

19

99

22

25

23

103

118A

18.0

17.3

38

40

37

114

42

45

41

118

40

40

39

116

44

45

43

120

119A

36.0

34.6

60

60

57

132

64

70

61

136

62

70

59

134

66

70

63

138

MED

NONE

-

-

18

20

18

108

21

25

22

112

19

25

20

110

23

25

24

114

118A

18.0

17.3

39

40

38

125

43

45

42

129

41

45

40

127

45

45

44

131

119A

36.0

34.6

61

70

58

143

65

70

62

147

63

70

60

145

66

70

64

149

HIGH

NONE

-

-

18

20

18

108

21

25

22

112

19

25

20

110

23

25

24

114

118A

18.0

17.3

39

40

38

125

43

45

42

129

41

45

40

127

45

45

44

131

119A

36.0

34.6

61

70

58

143

65

70

62

147

63

70

60

145

66

70

64

149

See “Legend and Notes for Tables 15 and 16” on page 42.

48HC

50HCQ

Summary of Contents for WeatherMaster 50HCQ

Page 1: ...al Connections 16 Field Power Supply 16 Units with Factory Installed Non Fused Disconnect 17 Units without Factory Installed Non Fused Disconnect 18 Convenience Outlets 18 Factory Option Thru Base Con...

Page 2: ...the unit and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING CAUTION and NOTE These words are used with the safety alert symbol DAN...

Page 3: ...trols 0 Electro mechanical Controls can be used with W7212 EconoMi er IV Non Fault Detection and Diagnostic 1 PremierLinkTM Controller 2 RTU Open Multi Protocol Controller 6 Electro mechanical with W7...

Page 4: ...4 C160133 Fig 2 Unit Dimensional Drawing 07 08 Size Units 50HCQ...

Page 5: ...5 C160134 Fig 2 Unit Dimensional Drawing 07 08 Size Unit cont 50HCQ...

Page 6: ...6 C10588 Fig 3 Unit Dimensional Drawing 09 Size Units 50HCQ...

Page 7: ...7 C10589 Fig 3 Unit Dimensional Drawing 09 Size Unit cont 50HCQ...

Page 8: ...ical unit piping schematic unit size 09 4 row indoor coil with two compressor circuits is shown Dual function outdoor and indoor coils are designed to provide parallel coil circuits during evaporator...

Page 9: ...A Closed Check Valve B Open Check Valve C Closed Check Valve D Open COMPRESSOR ACCUMULATOR HPS COMPRESSOR ACCUMULATOR HPS Filter Drier 2B 1B LPS LOC Acutrol DFT 1 Cooling Liquid Lines DFT 2 2A 1A 1D...

Page 10: ...llation For example on curb mounted units some accessories must be installed on the unit before the unit is placed on the curb Review the following for recommended sequences for installation steps Cur...

Page 11: ...nd control wiring is to be routed through the basepan attach the accessory thru the base service connections to the basepan in accordance with the accessory installation instructions Slab Mount Horizo...

Page 12: ...OF CARRIER CORPORATION 1 DEC 2 DEC 3 DEC ANG MATERIAL AUTHORIZATION NUMBER TITLE 1029120 CURB ASY ROOF ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS SIZE DRAWING NUMBER REV T 005 Y 002 DRAFTER CH...

Page 13: ...from falling into the conditioned space Due to electric heater supply duct will require 90 degree elbow WARNING Step 6 Rig and Place Unit Keep unit upright and do not drop Spreader bars are not requi...

Page 14: ...7 Convert to Horizontal and Connect Ductwork when required Unit is shipped in the vertical duct configuration Unit without factory installed economizer or return air smoke detector option may be field...

Page 15: ...ft the hood assembly with metal tray through the filter access opening and assemble per the steps outlined in Economizer Hood and Two Position Hood below Economizer Hood and Two Position Hood NOTE If...

Page 16: ...must have an external trap for condensate drainage Install a trap at least 4 in 102 mm deep and protect against freeze up If drain line is installed downstream from the external trap pitch the line a...

Page 17: ...result in personal injury death or property damage Do not connect aluminum wire between disconnect switch and furnace Use only copper wire See Fig 19 WARNING COPPER WIRE ONLY ELECTRIC DISCONNECT SWIT...

Page 18: ...pade connector from the 230 v connection and moving it to the 208 v 1 4 in male terminal on the primary side of the transformer Refer to unit label diagram for additional information Field power wires...

Page 19: ...nect switch is open Other connection methods will result in the convenience outlet circuit being de energized when the unit disconnect switch is open See Fig 24 Using unit mounted convenience outlets...

Page 20: ...Open controller is available as a factory installed option only Thermostat Install a Carrier approved accessory 2 stage Cooling Heating thermostat according to installation instructions included with...

Page 21: ...ng one compressor on 08 09 systems compressor unloaded on 07 2 stage system Stage 2 Cooling both compressors run on 08 09 systems compressor full load on 07 2 stage system or Stage 1 Heating both comp...

Page 22: ...DO 24Vac P3 7 to P3 5 Energize in COOL RVS2 DO 24Vac P3 6 to P3 4 Energize in COOL COMP 1 DO 24Vac P3 10 FPT REHEAT 6 COMP 2 DO 24Vac P3 8 REHEAT 8 HEAT 2 DO 24Vac E HEAT HC 1 TB4 1 COM 24Vac P3 3 HC...

Page 23: ...he indoor access panel Heater modules slide into the compartment on tracks along the bottom of the heater opening See Fig 32 Fig 33 and Fig 34 Not all available heater modules may be used in every uni...

Page 24: ...necessary Single Point Boxes without Fuses Unit heater applications not requiring supplemental fuses require a special Single Point Box without any fuses The accessory Single Point Boxes contain a set...

Page 25: ...leted through harnesses connected to the CTB thermostat Field connections are made at a 16 pole terminal block TB1 located on the bottom shelf of the unit control box in front of the PremierLink contr...

Page 26: ...26 C160124 Fig 39 Typical PremierLinkt Control Wiring Diagram 50HCQ...

Page 27: ...devices Be sure the probe tip does not come in contact with any of the unit s heater surfaces Outdoor Air Temperature OAT Sensor The OAT is factory mounted in the EconoMi er2 FIOP or accessory It is...

Page 28: ...sor 33ZCT55CO2 Space temperature and CO2 room sensor with override 33ZCT56CO2 Space temperature and CO2 room sensor with override and setpoint Table 9 Space Sensor Mode TB1 TERMINAL FIELD CONNECTION I...

Page 29: ...11 IAQ COM OAQ COM RH COM Analog 4 20mA 12 CCN RED Digital 5VDC 13 OAQ SEN RH SEN Analog 4 20mA 14 CCN Gnd WHT Digital 5VDC 15 AUX OUT Power Exhaust Output Discrete 24VAC 16 CCN BLK Digital 5VDC LEGE...

Page 30: ...minals on the CTB s THERMOSTAT connection strip for these Connect the thermostat s Y1 Y2 W1 W2 and G terminals to PremierLink TB1 as shown in Fig 45 If the 50HCQ unit is equipped with factory installe...

Page 31: ...ndoor Air Quality Sensor For each sensor use two 2 conductor 18 AWG American Wire Gage twisted pair cables unshielded to connect the separate isolated 24 vac power source to the sensor and to connect...

Page 32: ...int to read DIRTY Using Filter Timer Hours Refer to the PremierLinkt Controller Installation Start up and Configuration Instructions for instructions on using the PremierLink Configuration screens and...

Page 33: ...Conductors and drain wire must be at least 20 AWG stranded and tinned copper Individual conductors must be insulated with PVC PVC nylon vinyl Teflon or polyethylene An aluminum polyester 100 foil shi...

Page 34: ...connections to the RTU Open board NOTE The RTU Open controller acts as an intelligent imbedded thermostat A room thermostat cannot be used with the RTU Open controller J4 J2 J1 J5 J5 J22 J17 J19 J14...

Page 35: ...35 C160125 Fig 56 Typical RTU Open Controller Wiring Diagram 50HCQ...

Page 36: ...equired at this terminal to provide Run Enable status See Input Output section for additional instructions 2 These inputs are configurable If installed they take the place of the default input on the...

Page 37: ...VAC See Fig 59 for internal connections at the T 59 Connect the SEN terminal BLU to the RTU Open controller at J20 1 Connect the COM terminal BRN to J20 2 Connect the SET terminal STO or BLK to J20 3...

Page 38: ...is accessory detects plugged filters When installing this accessory the unit must be configured for filter status by setting MENU Config Inputs input 3 5 8 or 9 to Filter Status and normally open N O...

Page 39: ...nted Equipment Toucht Interface The Equipment Touch interface is a wall mounted interface used to connect to the RTU Open controller to access the control information read sensor values and maintenanc...

Page 40: ...e has just been formatted 2 flashes per second 4 flashes then pause Two or more devices on this network have the same MSTP network address 2 flashes per second On Exec halted after frequent system err...

Page 41: ...r Enthalpy Switch Return Air Enthalpy Sensor CTB ECON P LINK to J4 2 or RTU Open to J2 6 C11161 Fig 67 Outside and Return Air Enthalpy Sensor Wiring Smoke Detectors Smoke detectors are available as fa...

Page 42: ...s where one value is shown it is the same for either 208 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 foll...

Page 43: ...4 21 7 25 0 69 72 80 80 67 69 252 255 72 76 80 80 71 74 256 259 73 77 80 80 72 75 257 260 77 81 80 90 76 79 261 264 110A 12 0 16 0 33 4 38 5 83 89 90 90 80 85 263 269 87 93 90 100 84 89 267 273 88 94...

Page 44: ...21 7 25 0 68 71 80 80 66 69 252 255 72 75 80 80 70 73 256 259 73 76 80 80 71 74 257 260 76 80 80 80 76 78 261 264 110A 12 0 16 0 33 4 38 5 82 88 90 90 79 84 263 269 86 92 90 100 84 88 267 273 87 93 9...

Page 45: ...75 80 80 71 75 280 283 74 79 80 80 75 79 284 287 75 80 80 80 76 80 285 288 79 83 80 90 81 84 289 292 110A 12 0 16 0 33 4 38 5 85 92 90 100 84 90 291 297 89 95 90 100 89 94 295 301 90 96 90 100 90 96 2...

Page 46: ...90 78 82 314 317 82 86 90 90 83 87 318 321 83 87 90 90 84 88 319 322 87 91 90 100 88 92 323 326 110A 12 0 16 0 33 4 38 5 93 99 100 100 92 98 325 331 97 103 100 110 96 102 329 335 98 104 100 110 97 10...

Page 47: ...68 80 80 66 68 253 255 117A 7 8 10 4 21 7 25 0 68 71 80 80 66 69 252 255 72 75 80 80 70 73 256 259 73 76 80 80 71 74 257 260 76 80 80 80 76 78 261 264 110A 12 0 16 0 33 4 38 5 82 88 90 90 79 84 263 26...

Page 48: ...56 55 258 117A 7 8 10 4 21 7 25 0 71 74 80 80 71 74 271 274 75 78 80 80 75 78 275 278 76 79 80 80 76 79 276 279 79 83 80 90 81 83 280 283 110A 12 0 16 0 33 4 38 5 85 91 90 100 84 89 282 288 89 95 90 1...

Page 49: ...92 117A 7 8 10 4 21 7 25 0 78 81 80 90 79 81 305 308 82 85 90 90 83 86 309 312 83 86 90 90 84 87 310 313 87 90 90 90 89 91 314 317 110A 12 0 16 0 33 4 38 5 93 98 100 100 92 97 316 322 97 102 100 110 9...

Page 50: ...e installation Step 12 Install Accessories Available accessories include Roof Curb Thru base connection kit must be installed before unit is set on curb Manual outside air damper Two Position motorize...

Page 51: ...r shaft and the blower shaft 2 Set the tension gauge to the desired tension see Table 1 in Fig 71 Place the large O ring at that point 3 Press the tension checker downward on the belt until the large...

Page 52: ...4 C11504 Fig 72 Belt Drive Motor Mounting Pre Start and Start Up This completes the mechanical installation of the unit Refer to the unit s Service Manual for detailed Pre Start and Start Up instructi...

Page 53: ...53 50HCQ...

Page 54: ...dition Date 11 16 Printed in U S A Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 50HCQ 7 9 03SI Replaces 50HCQ 7 9...

Page 55: ...AIR INLET SCREENS ARE IN PLACE j VERIFY THAT UNIT IS LEVEL j CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND VERIFY SETSCREW IS TIGHT j VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS...

Page 56: ...USING CHARGING CHARTS GENERAL j ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS IF EQUIPPED j VERIFY SMOKE DETECTOR UNIT SHUTDOWN BY UTILIZING MAGNET TEST REPEAT PROCESS FOR 2 COMP...

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