background image

45

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

 50HCQD08 (2-stage cool) 

208/230-3-60

STD

NONE

-

-

38

50

40

191

42

50

44

195

43

50

45

196

47

50

49

200

117A

7.8/10.4

21.7/25.0

65/69

70/70

65/68

213/216

69/73

70/80

69/73

217/220

70/74

70/80

70/74

218/221

74/78

80/80

74/78

222/225

110A

12.0/16.0

33.4/38.5

80/86

80/90

78/84

224/230

84/90

90/90

82/88

228/234

85/91

90/100

83/89

229/235

88/95

90/100

88/94

233/239

111A

18.6/24.8

51.7/59.7

103/113

110/125

99/108

243/251

107/117

110/125

103/113

247/255

108/118

110/125

105/114

248/256

111/121

125/125

109/118

252/260

112A

24.0/32.0

66.7/77.0

122/134

125/150

116/128

258/268

125/138

125/150

121/132

262/272

126/139

150/150

122/134

263/273

130/143

150/150

126/138

267/277

112A+117A

31.8/42.4

88.4/102.0

149/166

150/175

141/157

368/395

152/169

175/175

146/161

372/399

153/170

175/175

147/162

373/400

157/174

175/175

151/167

377/404

MED

NONE

-

-

40/40

50/50

42/41

229

44/43

50/50

46/46

233

45/44

50/50

47/47

234

48/48

60/60

51/51

238

117A

7.8/10.4

21.7/25.0

67/71

70/80

66/70

251/254

71/75

80/80

71/74

255/258

72/76

80/80

72/76

256/259

76/79

80/80

76/80

260/263

110A

12.0/16.0

33.4/38.5

82/88

90/90

80/86

262/268

85/92

90/100

84/90

266/272

86/93

90/100

85/91

267/273

90/96

90/100

90/95

271/277

111A

18.6/24.8

51.7/59.7

104/114

110/125

101/110

281/289

108/118

110/125

105/114

285/293

109/119

110/125

106/115

286/294

113/123

125/125

111/120

290/298

112A

24.0/32.0

66.7/77.0

123/136

125/150

118/130

296/306

127/140

150/150

123/134

300/310

128/141

150/150

124/135

301/311

132/144

150/150

128/140

305/315

112A+117A

31.8/42.4

88.4/102.0

150/167

150/175

143/159

406/433

154/171

175/175

148/163

410/437

155/172

175/175

149/164

411/438

159/176

175/200

153/168

415/442

HIGH

NONE

-

-

44

50

46

258

47

60

50

262

48

60

51

263

52

60

56

267

117A

7.8/10.4

21.7/25.0

71/75

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

296/302

94/100

100/100

94/100

300/306

111A

18.6/24.8

51.7/59.7

108/118

110/125

105/114

310/318

112/122

125/125

110/119

314/322

113/123

125/125

111/120

315/323

117/127

125/150

115/124

319/327

112A

24.0/32.0

66.7/77.0

127/140

150/150

122/134

325/335

131/144

150/150

127/139

329/339

132/145

150/150

128/140

330/340

136/148

150/150

132/144

334/344

112A+117A

31.8/42.4

88.4/102.0

154/171

175/175

147/163

435/462

158/175

175/175

152/167

439/466

159/176

175/200

153/169

440/467

163/180

175/200

157/173

444/471

460-3-60

STD

NONE

-

-

18

20

19

95

20

25

21

97

21

25

21

97

22

25

23

99

116A

13.9

16.7

39

40

38

112

41

45

40

114

41

45

41

114

43

45

43

116

113A

16.5

19.8

43

45

42

115

45

45

44

117

45

45

44

117

47

50

46

119

114A

27.8

33.4

60

60

57

128

62

70

59

130

62

70

60

130

64

70

62

132

115A

33.0

39.7

68

70

65

135

70

70

67

137

70

70

67

137

72

80

69

139

MED

NONE

-

-

19

25

20

114

21

25

22

116

21

25

22

116

23

25

24

118

116B

13.9

16.7

40

40

39

131

42

45

41

133

42

45

42

133

44

45

44

135

113B

16.5

19.8

44

45

43

134

46

50

45

136

46

50

45

136

48

50

47

138

114B

27.8

33.4

61

70

58

147

63

70

60

149

63

70

61

149

65

70

63

151

115B

33.0

39.7

69

70

65

154

71

80

68

156

71

80

68

156

73

80

70

158

HIGH

NONE

-

-

21

25

22

129

23

25

24

131

23

25

24

131

25

30

27

133

116B

13.9

16.7

42

45

41

146

44

45

43

148

44

45

44

148

46

50

46

150

113B

16.5

19.8

46

50

45

149

48

50

47

151

48

50

47

151

50

50

49

153

114B

27.8

33.4

63

70

60

162

65

70

62

164

65

70

63

164

67

70

65

166

115B

33.0

39.7

71

80

68

169

73

80

70

171

73

80

70

171

75

80

72

173

575-3-60

STD

NONE

-

-

13

15

13

77

17

20

18

81

15

20

15

79

19

20

20

83

118A

18.0

17.3

35

35

33

94

39

40

38

98

36

40

35

96

40

40

40

100

119A

36.0

34.6

56

60

53

112

60

60

58

116

58

60

55

114

62

70

59

118

MED

NONE

-

-

14

15

14

81

17

20

18

85

15

20

16

83

19

20

20

87

118A

18.0

17.3

35

35

34

98

39

40

38

102

37

40

36

100

41

45

40

104

119A

36.0

34.6

57

60

54

116

61

70

58

120

59

60

56

118

62

70

60

122

HIGH

NONE

-

-

14

20

15

92

18

20

19

96

16

20

17

94

20

25

21

98

118A

18.0

17.3

36

40

35

109

40

40

39

113

38

40

37

111

41

45

41

115

119A

36.0

34.6

58

60

55

127

61

70

59

131

59

60

56

129

63

70

61

133

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...

Reviews: