Carrier CRPWREXH008B00, CRPWREXH009B00, CRPWREXH010B00 Installation Instructions Manual

Large Rooftop Units

POWER EXHAUST

INSULATED
PANEL

CENTER POST

Fig. 1 — Accessory Power Exhaust Package

Fig. 2 — Typical Base Unit

Accessory Power Exhaust

50/60 Hz

Installation Instructions

Part Number: CRPWREXH008B00

GENERAL

The accessory power exhaust package is used on the fol­lowing units when these base units are fitted with economizers:
15 to 25 ton, standard-efficiency electric heat/electric cool and
gas heat/electric cool units; 12 to 20 ton, high-efficiency elec­tric heat/electric cool and gas heat/electric cool units; and 13
and 15 ton, high-efficiency heat pump units. See Table 1.
The accessory will show a date code of 0903000001. Use this

accessory with 13 to 25 ton rooftop units with a serial
number of 3503Fxxxxx or later that are equipped with the
EconoMi$er+.

NOTE: This accessory is not compatible with the preassembled
horizontal supply transition accessory.

Table 1 — Accessory Power Exhaust Usage

UNIT VOLTAGE

208/230, 460 V (60 Hz)

575 V (60 Hz)

220 V, 400 V (50 Hz)

*Power exhaust motor is wired for 460 v.

POWER EXHAUST

PACKAGE NO.

CRPWREXH008B00*

CRPWREXH010B00
CRPWREXH009B00

Cancels: IIK 542J-150-20 IIK 542J-150-24

CRPWREXH009B00
CRPWREXH010B00

3. Remove
main control box (see Fig. 4) and two
in partition separating return-air compartment from
control box section. Install snap bushing provided in
knockout closest to economizer side of unit (see
Fig. 5).

4. Position power exhaust box (see Fig. 5) next to alter­nate return-air opening (see Fig. 3) and install using
screws provided.

5

/8-in. and 7/8-in. knockouts from bottom of

9/15/03

7

/8-in. knockouts

PACKAGE CONTENTS

QUANTITY ITEM

Power exhaust with motor, control box, fan,

1

and fan grille
Conduit assembly

1

Electrical snap bushings

5

No. 10AB x

7

Center post

1

Insulated panel

1

No. 10-32 x

2

Wire nut connectors

3

1

/2-in. lg screws

3

/8-in. machine screws

INSTALLATION

1. Unpack accessory package. See Fig. 1.

2. Disconnect power to unit. Remove the control box
access panel, main control box cover, and alternate
return-air access panel (see Fig. 2). Using screws from
alternate return-air access panel, install center post and
insulated panel as shown in Fig. 3.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book111444
Tab 1a1b5a5a6a6b

PC 111 Catalog No. 534-80153 Printed in U.S.A. Form 48/50H,T-30SI Pg 1 9-03 Replaces: 48/50H,T-14SI

INSULATED
PANEL

CENTER POST

ALTERNATE
RETURN-AIR
OPENING

Fig. 3 — Panel and Center Post Installation

Fig. 4 — Low-Voltage Control Box Connections

Power Wiring —

Power exhaust accessory package
CRPWREXH008B00 is shipped with power wiring connected
to motor for 460-v operation, but may be rewired for 208/230-v
operation.

Lock open and tag power disconnect before working on any
electrical components.

1

208/230 V, 60 Hz — Remove the no. 10AB x

/2-in. lg
screws from the perimeter of power exhaust front panel. Re­move front panel containing fan and fan motor.

Referring to Fig. 6-8, change connection at power exhaust

motor as follows:

1. Remove splice between leads 1 and 2.

2. Remove cap from lead 5.

3. Remove yellow wire from lead 4.

4. Remove red wire from lead 3.

5. Connect red wire to lead 1.

6. Connect yellow wire to leads 2 and 4.

7. Splice leads 3 and 5.
Replace front panel containing fan and fan motor. Proceed

as described below.
ALL UN ITS — Feed the red and blue power wires from rear

of power exhaust box through conduit assembly. Route conduit
assembly through hole in partition to main control box (see
Fig. 5). Secure conduit assembly to bottom of main control box
and at rear of power exhaust box.

Route the red and blue power wires from conduit termina-

tion to main control box components: per Fig. 6 for 15 ton
standard-efficiency electric heat/electric cool and gas heat/
electric cool units and 12 ton high-efficiency electric heat/
electric cool and gas heat/electric cool units; per Fig. 7 for 18 to
25 ton standard-efficiency electric heat/electric cool and gas
heat/electric cool units, 15 and 20 ton high-efficiency electric
heat/electric cool and gas heat/elect ric cool units, and 15 ton
high-efficiency heat pump units; and per Fig. 8 for 13 ton high­efficiency heat pump units.

LEGEND

Indoor Fan Contactor

IFC —

NOTE: Dashed lines indicate field-installed control wiring.

Fig. 5 — Control Wiring Installation

2

MAIN CONTROL BOX

BLK

YEL

IFC

21

IFC

22

BLK

11

YEL

12

POWER EXHAUST BOX

RED

BLU

FU9FU9

FU8

460 V, 60 Hz (PART NO. CRPWREXH008B00)

MAIN CONTROL BOX POWER EXHAUST BOX

BLK

YEL

FU1

FU2

BLK

YEL

RED

BLU

FU9

FU8

208/230 V, 60 Hz (PART NO. CRPWREXH008B00)

RED

BLU

RED

BLU

EMC

EMC

YEL

YEL

CAP

YEL

CAP

YEL

BRN

BRN

1

2

3

4

5

6

1

2

3

4

5

6

EFM

EFM

MAIN CONTROL BOX

BLK

YEL

MAIN CONTROL BOX

BLK

NEUTRAL TB

POWER EXHAUST BOX

IFC

21

IFC

22

BLK

11

RED

YEL

12

BLU

FU9

FU8

RED

BLU

EMC

YEL

CAP

BLK

EFM

RIBBED OR WHT

SMOOTH OR BRN

575 V, 60 Hz (PART NO. CRPWREXH010B00)
220 V, 50 Hz (PART NO. CRPWREXH009B00)

POWER EXHAUST

IFC

21

BLK

11

RED

BLU

FU9

FU8

RED

BLU

EMC

YEL

CAP

BLK

RIBBED OR WHT

EFM

SMOOTH OR BRN

400 V, 50 Hz, (PART NO. CRPWREXH009B00)

LEGEND

CAP —
EMC —
EFM —
FU —
IFC —
TB —

Capacitor
Exhaust Motor Contactor
Exhaust Fan Motor
Fuse
Indoor-Fan Contactor
Terminal Block

Fig. 6 — Power Wiring Connection Diagrams
(15 Ton Standard-Efficiency Electric Heat/Electric Cool and Gas Heat/Electric Cool Units
and 12 Ton High-Efficiency Electric Heat/Electric Cool and Gas Heat/Electric Cool Units)

3

MAIN CONTROL BOX

BLK

YEL

BLK

YEL

IFCB

11

IFCB

12

BLK

21

YEL

22

POWER EXHAUST BOX

RED RED

BLU

FU9FU9

FU8

BLU

EMC

460 V, 60 Hz (PART NO. CRPWREXH008B00)

MAIN CONTROL BOX POWER EXHAUST BOX

IFCB

11

IFCB

12

BLK

21

FU9

FU8

RED

BLU

RED

YEL

22

BLU

208/230 V, 60 Hz (PART NO. CRPWREXH008B00)

EMC

YEL

YEL

CAP

YEL

CAP

YEL

BRN

BRN

1

2

3

4

5

6

1

2

3

4

5

6

EFM

EFM

MAIN CONTROL BOX

BLK

YEL

MAIN CONTROL BOX

BLK

NEUTRAL TB

POWER EXHAUST BOX

IFCB

11

IFCB

12

BLK

21

RED

YEL

22

BLU

FU9

FU8

RED

BLU

EMC

YEL

CAP

BLK

EFM

RIBBED OR WHT

SMOOTH OR BRN

575 V, 60 Hz (PART NO. CRPWREXH010B00)
220 V, 50 Hz (PART NO. CRPWREXH009B00)

POWER EXHAUST

IFCB

11

BLK

21

RED

BLU

FU9

FU8

RED

BLU

EMC

YEL

CAP

BLK

RIBBED OR WHT

EFM

SMOOTH OR BRN

400 V, 50 Hz (PART NO. CRPWREXH009B00)

LEGEND

CAP —
EMC —
EFM —
FU —
IFCB —
TB —

Capacitor
Exhaust Motor Contactor
Exhaust Fan Motor
Fuse
Indoor Fan Circuit Breaker
Terminal Block

Fig. 7 — Power Wiring Connection Diagrams

(18 to 25 Ton Standard-Efficiency Electric Heat/Electric Cool and Gas Heat/Electric Cool Units,

15 and 20 Ton High-Efficiency Electric Heat/Electric Cool and Gas Heat/Electric Cool Units,

and 15 Ton High-Efficiency Heat Pump Units)

4

MAIN CONTROL BOX

BLK

YEL

FU1

FU2

BLK

YEL

POWER EXHAUST BOX

RED RED

BLU

FU9FU9

FU8

460 V, 60 Hz (PART NO. CRPWREXH008B00)

MAIN CONTROL BOX POWER EXHAUST BOX

BLK

YEL

FU1

FU2

BLK

YEL

RED

BLU

FU9

FU8

208/230 V, 60 Hz (PART NO. CRPWREXH008B00)

BLU

RED

BLU

EMC

EMC

YEL

YEL

CAP

YEL

CAP

YEL

BRN

BRN

1

2

3

4

5

6

1

2

3

4

5

6

EFM

EFM

MAIN CONTROL BOX

BLK

YEL

FU1

FU2

BLK

YEL

POWER EXHAUST BOX

RED

BLU

FU9

FU8

RED

BLU

EMC

YEL

575 V, 60 Hz (PART NO. CRPWREXH010B00)

LEGEND

CAP —
EMC —
EFM —
FU —

Capacitor
Exhaust Motor Contactor
Exhaust Fan Motor
Fuse

Fig. 8 — Power Wiring Connection Diagrams

(13 Ton High-Efficiency Heat Pump Units)

CAP

BLK

EFM

RIBBED OR WHT

SMOOTH OR BRN

5

Control Wiring

1. Route the gray wire from the power exhaust assembly
through the partition panel and into the main control box.
Connect the gray wire to the yellow wire from PL-1. (See
Fig. 9.)

2. Remove screw from return air base rail halfway
between power exhaust and economizer motor. Install
wire tie under screw and secure gray wire to return-air
base rail.

3. Insert snap bushi ng (pro vided ) into

5

/8-in. knockout in
bottom of low-voltage control box. Route brown wire
through partition panel snap bushing and into low­voltage control box. Connect bro wn w ire to ter minal C
on low-voltage terminal strip (see Fig. 9).

4. Replace access panels and return power to unit.
Figure 10 shows the unit with accessory power exhaust

package installed. Figure 11 shows a typical unit wiring sche­matic with power exhaust wiring.

LEGEND

EMC —

Exhaust Motor Contactor

Fig. 9 — Control Wiring Connection Diagram

Fig. 10 — Accessory Power Exhaust Package

Installed on Base Unit

LEGEND

C—
CAP —
EMC —
EFM —
FU —
IFC —
QT —
TB —

Contactor
Capacitor
Exhaust Motor Contactor
Exhaust Fan Motor
Fuse
Indoor Fan Contactor
Quadruple Terminal
Terminal Block

Terminal (Unmarked)

Terminal (Marked)

Terminal Block Connection

Splice

Fig. 11 — Typical Unit Wiring Schematic

6

NOTES: Fan motor thermally protected.

Copyright 2003 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book111444
Tab 1a1b5a5a6a6b

PC 111 Catalog No. 534-80153 Printed in U.S.A. Form 48/50H,T-30SI Pg 8 9-03 Replaces: 48/50H,T-14SI