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16

Table 2 — Operating Weights

50AJ,AK,AW,AY Units

 

                LEGEND

NOTES:

1. Base unit weight includes outdoor-air hoods. Base unit weight

does NOT include indoor-fan motor. ADD indoor-fan motor,
FIOPs, and accessories for TOTAL operating weight.

2. The VAV motor weights include indoor fan motor and the VFD

(variable frequency drive), VFD transducers, and associated
wiring.

UNIT

BASE UNIT WEIGHTS — lb

020

025

027

030

035

040

050

060

50AJ,AK

3642

3715

3832

3982

4120

4660

5131

7148

50AW,AY

3720

3793

3910

4060

4313

4853

5324

7363

OPTION/

ACCESSORY

OPTION/ACCESSORY WEIGHTS — lb

020

025

027

030

035

040

050

060

Barometric Relief

300

300

300

300

300

300

300

450

Power Exhaust

450

450

450

450

450

450

450

675

Mod. Power Exhaust

500

500

500

500

500

500

500

725

Electric Heat

110

110

110

110

110

110

110

165

Cu Tubing/Cu Fin Condenser Coil

220

220

220

220

285

285

380

651

Outdoor Air Hood Crate and 
Packaging
(Less Hoods' Weight)

45

45

45

45

45

45

45

45

(Packaging Only)

(Packaging Only)

Outdoor Air Hoods/Filters

170

170

170

170

170

170

170

255

Roof Curb (14-in.)

365

365

365

365

410

410

410

585

CV MOTOR WEIGHTS — lb

MOTOR

HP

UNIT

VOLTAGE

HIGH

EFFICIENCY

IFM

PREMIUM

EFFICIENCY

IFM

5

230/460

78

94

575

78

92

10

230/460

118

164

575

118

156

15

230/460

150

217

575

150

220

20

230/460

212

250

575

212

258

25

230/460

240

309

575

240

319

30

230/460

283

355

575

283

359

40

230/460

372

415

575

372

410

Cu

Copper

CV

Constant Volume

FIOP —

Factory-Installed Option

HP

Horsepower

IFM

Indoor Fan Motor

VAV

Variable Air Volume

VFD

Variable Frequency Drive

VAV MOTOR WEIGHTS — lb

MOTOR

HP

UNIT

VOLTAGE

HIGH

EFFICIENCY

IFM

PREMIUM

EFFICIENCY

IFM

5

230/460

125

141

575

163

177

10

230/460

204

250

575

204

242

15

230/460

238

305

575

240

310

20

230/460

348

386

575

304

350

25

230/460

377

446

575

375

454

30

230/460

480

552

575

418

494

40

230/460

637

680

575

587

625

Summary of Contents for 48AJ/AK/AMD020

Page 1: ...e level This is necessary to permit unit drain to func tion properly Unit leveling tolerance is shown in Fig 1 4 Refer to Accessory Roof Curb Installation Instructions for additional information as re...

Page 2: ...wer exhaust To attach ductwork to roof curb insert duct approximately 10 to 11 in up into roof curb Connect ductwork to 14 gage roof curb material with sheet metal screws driven from inside the duct S...

Page 3: ...3 Fig 1 Roof Curb 50AJ AK020 035 Units...

Page 4: ...4 Fig 2 Roof Curb 50AJ AK040 050 Units...

Page 5: ...5 Fig 3 Roof Curb 50AJ AK060 Units...

Page 6: ...6 Fig 4 Reduced Supply Duct Opening Roof Curb 50AJ AK060 Units...

Page 7: ...7 Fig 5 Base Unit Dimensions 50AJ AK020 035...

Page 8: ...8 Fig 6 Base Unit Dimensions 50AJ AK040 050...

Page 9: ...lication Engineering Department 5 Bottom ducts designed to be attached to accessory roof curb If unit is mounted on dunnage it is recom mended the ducts must be supported by cross braces as done on ac...

Page 10: ...10 Fig 8 Base Unit Dimensions 50AW AY020 035...

Page 11: ...11 Fig 9 Base Unit Dimensions 50AW AY040 050...

Page 12: ...y roof curb 6 Base unit weights include outdoor air hoods and filters indoor fan motor is not included Add indoor motor FIOPs and accessories for total operating weight 7 VAV motor weights include ind...

Page 13: ...Nominal Cfm 8 000 10 000 11 000 12 000 Motor Hp 5 10 15 5 10 15 10 15 20 10 15 20 Motor Frame Size 184T 215T 254T 184T 215T 254T 215T 254T 256T 215T 254T 256T Motor Bearing Type Ball Ball Ball Ball Ma...

Page 14: ...16 000 18 000 24 000 Motor Hp 15 20 25 15 20 25 20 25 30 25 30 40 Motor Frame Size 254T 256T 284T 254T 256T 284T 256T 284T 286T 284T 286T 324T Motor Bearing Type Ball Ball Ball Ball Maximum Allowable...

Page 15: ...25 48AW AY AXE027 5083 2306 87 7 2227 69 6 1768 44 6 1133 50AJ AK AM030 5023 2278 87 7 2227 68 0 1727 43 6 1107 48AJ AK AMD030 5113 2319 87 7 2227 69 1 1755 44 0 1118 48AJ AK AME030 5193 2356 87 7 222...

Page 16: ...er Coil 220 220 220 220 285 285 380 651 Outdoor Air Hood Crate and Packaging Less Hoods Weight 45 45 45 45 45 45 45 45 Packaging Only Packaging Only Outdoor Air Hoods Filters 170 170 170 170 170 170 1...

Page 17: ...0 1 625 1187 2B5V58 5 9 B 1 625 2B5V86 8 7 B 1 9375 2 5VX530 11 030 10 1 375 884 2BK50 4 4 H 1 375 2B5V94 9 5 B 1 9375 2 BX50 8 15 1 625 1096 2B5V56 5 7 B 1 625 2B5V90 9 1 B 1 9375 2 5VX530 9 20 1 625...

Page 18: ...PT coupling for 24 v control wiring are provided in basepan In the side post there are two 21 2 in 50A020 035 or 3 in 50A040 060 knockouts for the field power wiring See Fig 5 10 If control wiring is...

Page 19: ...ation from average voltage AB 457 452 5 v BC 464 457 7 v AC 457 455 2 v Maximum deviation is 7 v Determine percent of voltage imbalance Voltage Imbalance 100 x 1 53 This amount of phase imbalance is s...

Page 20: ...2 103 2 125 86 6 36 127 3 150 173 2 72 192 2 200 23 6 126 8 150 86 6 36 156 8 175 173 2 72 221 7 225 10 28 0 117 2 125 86 6 36 143 3 150 173 2 72 208 2 225 23 6 140 8 150 86 6 36 172 8 175 173 2 72 2...

Page 21: ...ea 5 15 2 107 8 125 86 6 36 127 3 150 173 2 72 192 2 200 23 6 131 4 150 86 6 36 156 8 175 173 2 72 221 7 225 10 28 0 121 2 125 86 6 36 143 3 150 173 2 72 208 2 225 23 6 144 8 150 86 6 36 172 8 175 173...

Page 22: ...125 0 150 86 6 36 143 3 150 173 2 72 208 2 225 23 6 148 6 150 86 6 36 172 8 175 173 2 72 237 7 250 15 42 0 142 5 175 86 6 36 160 8 175 173 2 72 225 7 250 23 6 166 1 200 86 6 36 190 3 200 173 2 72 255...

Page 23: ...a 10 28 0 137 8 150 86 6 36 143 3 150 173 2 72 208 2 225 23 6 161 4 175 86 6 36 172 8 175 173 2 72 237 7 250 15 42 0 155 3 175 86 6 36 160 8 175 173 2 72 225 7 250 23 6 178 9 200 86 6 36 190 3 200 173...

Page 24: ...200 86 6 36 164 3 200 173 2 72 225 7 250 23 6 187 9 225 86 6 36 190 3 225 173 2 72 255 2 300 20 54 0 179 3 225 86 6 36 179 3 225 173 2 72 240 7 250 23 6 202 9 250 86 6 36 205 3 250 173 2 72 270 2 300...

Page 25: ...6 36 198 7 225 173 2 72 225 7 250 23 6 222 3 250 86 6 36 222 3 250 173 2 72 255 2 300 20 54 0 213 7 250 86 6 36 213 7 250 173 2 72 240 7 250 23 6 237 3 250 86 6 36 237 3 250 173 2 72 270 2 300 25 68 0...

Page 26: ...243 8 250 173 2 72 243 8 250 23 6 267 4 300 86 6 36 267 4 300 173 2 72 270 2 300 25 68 261 3 300 86 6 36 261 3 300 173 2 72 261 3 300 23 6 284 9 350 86 6 36 284 9 350 173 2 72 287 7 350 30 80 276 3 35...

Page 27: ...44 8 400 35 4 335 6 400 129 9 54 335 6 400 259 8 108 389 1 400 30 80 315 2 350 129 9 54 315 2 350 259 8 108 359 8 400 35 4 350 6 400 129 9 54 350 6 400 259 8 108 404 1 450 40 104 345 2 400 129 9 54 34...

Page 28: ...ttings as follows Settings may be changed slightly to provide a greater degree of comfort for a particular installation SPT Space Temperature Sensor For constant volume ap plications the ComfortLink c...

Page 29: ...f power to the control box 2 Cut the CCN wire and strip the ends of the red white ground and black conductors If a different net work color scheme is used substitute appropriate colors 3 Remove the 3...

Page 30: ...onnected to TB6 terminals 1 and 2 Note that the controls also support integrated economizer changeover using outdoor dry bulb differential dry bulb out door enthalpy and differential enthalpy See Fig...

Page 31: ...Economizer Control Board EDT Evaporator Discharge Sensor EMM Energy Management Board FIOP Factory Installed Option GND Ground HC Heat Contactor HGBP Hot Gas Bypass HIR Heat Interlock Relay HPS High Pr...

Page 32: ...32 CONTROLS OPTION BOARD Fig 19 Small Chassis Component Location Size 020 035 Units...

Page 33: ...33 CONTROLS OPTION BOARD Fig 20 Large Chassis Component Locations Size 040 060 Units...

Page 34: ...34 Fig 21 Typical Main Control Box Wiring Schematic TO NEXT PAGE TO NEXT PAGE...

Page 35: ...35 FROM PREVIOUS PAGE FROM PREVIOUS PAGE Fig 21 Typical Main Control Box Wiring Schematic cont...

Page 36: ...36 TO NEXT PAGE TO NEXT PAGE Fig 22 Auxiliary Control Box Wiring Schematic...

Page 37: ...37 FROM PREVIOUS PAGE FROM PREVIOUS PAGE FROM PREVIOUS PAGE Fig 22 Auxiliary Control Box Wiring Schematic cont...

Page 38: ...38 Fig 23 Typical Power Schematic Size 060 Unit Shown...

Page 39: ...39 Fig 23 Typical Power Schematic Size 060 Unit Shown cont...

Page 40: ...40 Fig 24 Controls Option Wiring Schematic...

Page 41: ...41 Fig 25 Electric Heat Control Circuit Size 060 Unit Shown...

Page 42: ...p to overhang 1 8 in past the end opposite the mounting flange See Fig 26 2 Assemble hood sides top and cross member with gasketed screws provided See Fig 27 3 Attach 15 green speed clips provided to...

Page 43: ...filters are installed with the airflow in the correct direction NOTE Tabs from both filter tracks will be in the same space After one filter track has been inserted into hood side bend the tabs so th...

Page 44: ...4 50AJ AK AW AY020 050 units or 6 50AJ AK AW AY060 units power exhaust blowers and motors or 4 50AJ AK AW AY020 050 units or 6 50AJ AK AW AY060 units barometric relief dampers MOUNTING ANGLE WITHOUT T...

Page 45: ...to route tubing The low pressure tap is factory routed to the atmosphere For a positive pressure building route the high tap to building air and low tap to atmosphere For a negative pressure building...

Page 46: ...020 050 units There are 3 panels on 50AJ AK060 and units These openings are normally used for power exhaust or barometric relief 3 Run the return air ductwork up to the openings One single duct is rec...

Page 47: ......

Page 48: ...ntinue or change at any time specifications or designs without notice and without incurring obligations PC 111 Catalog No 535 00075 Printed in U S A Form 50A 1SI Pg 48 8 03A 7 03 Replaces New Book 1 T...

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