Carrier CRPWREXH008B00 User manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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
Book111444
Tab 1a1b5a5a6a6b
Cancels: IIK 542J-150-20 IIK 542J-150-24
9/15/03
Installation Instructions
Part Number: CRPWREXH008B00
CRPWREXH009B00
CRPWREXH010B00
GENERAL
The accessory power exhaust package is used on the fol-
lowing 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 elec-
tric 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
*Power exhaust motor is wired for 460 v.
PACKAGE CONTENTS
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.
3. Remove 5/8-in. and 7/8-in. knockouts from bottom of
main control box (see Fig. 4) and two 7/8-in. knockouts
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 alter-
nate return-air opening (see Fig. 3) and install using
screws provided.
UNIT VOLTAGE POWER EXHAUST
PACKAGE NO.
208/230, 460 V (60 Hz) CRPWREXH008B00*
575 V (60 Hz) CRPWREXH010B00
220 V, 400 V (50 Hz) CRPWREXH009B00
QUANTITY ITEM
1 Power exhaust with motor, control box, fan,
and fan grille
1Conduit assembly
5Electrical snap bushings
7No. 10AB x 1/2-in. lg screws
1Center post
1Insulated panel
2No. 10-32 x 3/8-in. machine screws
3 Wire nut connectors
Large Rooftop Units
Accessory Power Exhaust
50/60 Hz
POWER EXHAUST
INSULATED
PANEL
CENTER POST
Fig. 1 — Accessory Power Exhaust Package
Fig. 2 — Typical Base Unit

2
Power Wiring — Power exhaust accessory package
CRPWREXH008B00 is shipped with power wiring connected
to motor for 460-v operation, butmay be rewired for 208/230-v
operation.
208/230 V, 60 Hz — Remove the no. 10AB x 1/2-in. lg
screws from the perimeter of power exhaust front panel. Re-
move 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 UNITS — 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/electric cool units, and 15 ton
high-efficiency heat pump units; and per Fig. 8 for 13 ton high-
efficiency heat pump units.
Lock open and tag power disconnect before working onany
electrical components.
ALTERNATE
RETURN-AIR
OPENING
CENTER POST
INSULATED
PANEL
Fig. 3 — Panel and Center Post Installation
Fig. 4 — Low-Voltage Control Box Connections
LEGEND
IFC — Indoor Fan Contactor
NOTE: Dashed lines indicate field-installed control wiring.
Fig. 5 — Control Wiring Installation

3
EFM
1
2
3
4
5
6
BLU
FU8
FU9FU9
BLU
RED RED
BLK
YEL YEL
BLK
IFC
IFC
21 11
22 12
MAIN CONTROL BOX POWER EXHAUST BOX
EMC YEL BRN
CAP
YEL
FU9
FU8 BLU YEL BRN
CAP
YEL
RED
EMC
1
2
3
4
5
6
BLK
MAIN CONTROL BOX POWER EXHAUST BOX
FU1
FU2
YEL YEL
BLK
RED
BLU
EFM
BLK
YEL
FU8
FU9
EMC YEL
RED
BLU CAP
21 11
22 12
IFC
IFC
RED
BLU
MAIN CONTROL BOX POWER EXHAUST BOX
BLK
RIBBED OR WHT
EFM
SMOOTH OR BRN
BLK
YEL
EFM
BLK
RIBBED OR WHT
SMOOTH OR BRN
FU8
FU9
CAP
YEL
EMC
RED
RED
BLU BLU
BLK
NEUTRAL TB
21 11
IFC BLK
POWER EXHAUST
MAIN CONTROL BOX
460 V, 60 Hz (PART NO. CRPWREXH008B00)
208/230 V, 60 Hz (PART NO. CRPWREXH008B00)
575 V, 60 Hz (PART NO. CRPWREXH010B00)
220 V, 50 Hz (PART NO. CRPWREXH009B00)
400 V, 50 Hz, (PART NO. CRPWREXH009B00)
LEGEND
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)
CAP — Capacitor
EMC — Exhaust Motor Contactor
EFM — Exhaust Fan Motor
FU — Fuse
IFC — Indoor-Fan Contactor
TB — Terminal Block

4
EFM
1
2
3
4
5
6
BLU
FU8
FU9FU9
BLU
RED RED
BLK
YEL YEL
BLK
21
11
22
12
MAIN CONTROL BOX POWER EXHAUST BOX
EMC YEL BRN
CAP
YEL
IFCB
IFCB
FU9
FU8
BLU YEL BRN
CAP
YEL
RED
EMC
1
2
3
4
5
6
MAIN CONTROL BOX POWER EXHAUST BOX
RED
BLU
BLK
YEL
BLK
21
11
IFCB
YEL
22
12
IFCB
EFM
FU8
FU9
EMC YEL
RED
BLU CAP
RED
BLU
MAIN CONTROL BOX POWER EXHAUST BOX
BLK
RIBBED OR WHT
EFM
SMOOTH OR BRN
BLK BLK
21
11
IFCB
YEL YEL
22
12
IFCB
EFM
BLK
RIBBED OR WHT
SMOOTH OR BRN
FU8
FU9
CAP
YEL
EMC
RED
RED
BLU BLU
NEUTRAL TB
POWER EXHAUST
MAIN CONTROL BOX
BLK BLK
21
11
IFCB
460 V, 60 Hz (PART NO. CRPWREXH008B00)
208/230 V, 60 Hz (PART NO. CRPWREXH008B00)
575 V, 60 Hz (PART NO. CRPWREXH010B00)
220 V, 50 Hz (PART NO. CRPWREXH009B00)
400 V, 50 Hz (PART NO. CRPWREXH009B00)
LEGEND
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)
CAP — Capacitor
EMC — Exhaust Motor Contactor
EFM — Exhaust Fan Motor
FU — Fuse
IFCB — Indoor Fan Circuit Breaker
TB — Terminal Block

5
EFM
1
2
3
4
5
6
BLU
FU8
FU9FU9
BLU
RED RED
MAIN CONTROL BOX POWER EXHAUST BOX
EMC YEL BRN
CAP
YEL
BLK FU1 BLK
FU2
YEL YEL
FU9
FU8 BLU YEL BRN
CAP
YEL
RED
EMC
1
2
3
4
5
6
BLK
MAIN CONTROL BOX POWER EXHAUST BOX
FU1
FU2
YEL YEL
BLK
RED
BLU
EFM
FU8
FU9
EMC YEL
RED
BLU CAP
RED
BLU
MAIN CONTROL BOX POWER EXHAUST BOX
BLK
RIBBED OR WHT
EFM
SMOOTH OR BRN
BLK FU1 BLK
FU2
YEL YEL
460 V, 60 Hz (PART NO. CRPWREXH008B00)
208/230 V, 60 Hz (PART NO. CRPWREXH008B00)
575 V, 60 Hz (PART NO. CRPWREXH010B00)
LEGEND
Fig. 8 — Power Wiring Connection Diagrams
(13 Ton High-Efficiency Heat Pump Units)
CAP — Capacitor
EMC — Exhaust Motor Contactor
EFM — Exhaust Fan Motor
FU — Fuse

6
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 bushing (provided) into 5/8-in. knockout in
bottom of low-voltage control box. Route brown wire
through partition panel snap bushing and into low-
voltage control box. Connect brown wire to terminal 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 sche-
matic with power exhaust wiring.
LEGEND
Fig. 9 — Control Wiring Connection Diagram
EMC — Exhaust Motor Contactor
Fig. 10 — Accessory Power Exhaust Package
Installed on Base Unit
LEGEND
NOTES: Fan motor thermally protected.
C—
Contactor
CAP — Capacitor
EMC — Exhaust Motor Contactor
EFM — Exhaust Fan Motor
FU — Fuse
IFC — Indoor Fan Contactor
QT — Quadruple Terminal
TB — Terminal Block
Terminal (Unmarked)
Terminal (Marked)
Terminal Block Connection
Splice
Fig. 11 — Typical Unit Wiring Schematic

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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
Book111444
Tab 1a1b5a5a6a6b
Copyright 2003 Carrier Corporation