Carrier CRPWREXH030A01, CRPWREXH021A01, CRPWREXH022A01, CRPWREXH023A01, CRPWREXH080A00 Installation Instructions Manual
...
Gas Heating/Electric Cooling,
Electric Cooling, and Heat Pump Units
3 to 15 Tons Small Rooftop Units
Vertical Power Exhaust Accessory
Installation Instructions
PART NO. CRPWREXH030A01, CRPWREXH021A01, CRPWREXH022A01,
CRPWREXH023A01, CRPWREXH080A00, CRPWREXH081A00
FOR USE WITH VERTICAL ECONOMI$ER
ECONOMI$ER
®
®
IV, ECONOMI$ER® 2, OR
X ONLY
TABLE OF CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . .1
PACKAGE CONTENTS AND USAGE . . . . . . . . . . . . .1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installing the Vertical Power Exhaust . . . . . . . . . . . .3
Power Exhaust Wiring with EconoMi$er IV and
EconoMi$er X. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Power Exhaust Wiring with EconoMi$er and
PremierLink Controller or RTU-MP/OPEN . . . . . .7
Attaching Power Exhaust to the Unit . . . . . . . . . . . .9
Installing the Hinged Door Angle
(Small and Large Cabinet) . . . . . . . . . . . . . . . . . . .10
PremierLink — Operational Notes for
Testing Purposes . . . . . . . . . . . . . . . . . . . . . . . . . . .10
IMPORTANT: Read entire instructions before installing
the accessory.
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
Table 2 — Package Usage
When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and
other safety precautions that may apply.
Follow all safety codes, including ANSI (American National
Standards Institute) Z223.1. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have fire
extinguisher available for all brazing operations.
WARNING
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work
is completed.
PACKAGE CONTENTS AND USAGE
See Tables 1 and 2 for package content and usage.
Table 1 — Package Contents
QTY CONTENTS
1 Power Exhaust Hood/Fan Assembly
Low Voltage Wiring Harness with plug and 12-in. (305
1
mm) gray jumper wire
1 High Voltage Wiring Harness with plug
8 No. 10 x 3/4 in. (19 mm) Mounting Screws
1 Gasketing Roll
1 Sealing Angle
NOTES:
1. Both wiring harnesses are shipped attached to the power
exhaust assembly.
2. The sealing angle was included beginning with unit serial numbers 3502Gxxxxx (21A-23A and 30A power exhaust only). For
use with Hinged Panel units only.
1
2
1
1
UNIT CONFIGURATION UNIT FOOTPRINT (IN.) POWER EXHAUST PART NUMBER POWER EXHAUST VOLTAGE
3
Small Cabinet 46
Large Cabinet 58
Extra Large Cabinet 66
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480206-01 Printed in U.S.A. Form IIK-CRPWREXH021-07 Pg 1 8-18 Replaces: IIK-CRPWREXH021-06
/4 x 74 3/
1
/2 x 88 1/
3
/8 x 115 7/
8
8
8
CRPWREXH030A01 208/230 V, 1 Ph
CRPWREXH021A01 460 V, 3 Ph
CRPWREXH022A01 208/230 V, 1 Ph
CRPWREXH023A01 460 V, 3 Ph
CRPWREXH080A00 208/230 V, 1 Ph
CRPWREXH081A00 460 V, 3 Ph
GENERAL
ECONOMIZER
INLET
POWER EXHAUST
OUTLET
Z
X
Y
NOTE: Dimensions in inches (mm).
UNIT
CONFIGURATION
XYZ
Small Cabinet 18.5 (470) 19.25 (515) 0.4375 (11)
Large Cabinet 26 (660) 25 (635) 0 (0)
Extra Large
Cabinet
28.6 (725) 37.75 (960) 4.5 (115)
The accessory vertical power exhaust is used in conjunction with the vertical EconoMi$er IV, EconoMi$er X, or EonoMi$er2 accessories. For horizontal applications, this power
exhaust accessory cannot be used. The horizontal power exhaust accessory must be used for horizontal applications.
See Tables 3 and 4 for EconoMi$er usage. See Fig. 1 for
dimensions.
Table 3 — Economizer Accessory Use
PART NUMBER DESCRIPTION
CRECOMZR020A02
CRECOMZR021A03
CRECOMZR062A00
CRECOMZR022A01
CRECOMZR022B00
CRECOMZR023A00
CRECOMZR023B00
CRECOMZR068A00
CRECOMZR063A00
CRECOMZR070A00
CRECOMZR069A00
CRECOMZR071A00
CRECOMZR078A00
CRECOMZR080A00
CRECOMZR067A00
Table 4 — Factory-Installed Vertical
BASE RAIL SERIAL DESCRIPTION
4005Gxxxxx to
current
0802Gxxxxx to
current
Fig. 1 — Dimensions, Economizer with
EconoMi$er IV with W7212 Controller
EconoMi$er2 without controller
(Typically used with SystemVu™,
PremierLink, RTU Open, ComfortLink, or a
field-supplied building management system)
EconoMi$er X with W7220 Controller
Economizer Use
EconoMi$er IV with W7212 Controller
EconoMi$er2 without controller
(used with PremierLink or field-supplied
building management system)
Power Exhaust
INSTALLATION
IMPORTANT: Follow all applicable local and national
electrical codes when installing this accessory.
Follow all local and NEC (National Electrical Code)
codes. If a single power source is to be used, size the wire to
include power exhaust MCA and MOCP. (See Table 5.)
Table 5 — Power Exhaust Electrical Data
POWER EXHAUST
PART NUMBER
CRPWREXH030A01 1.5 N/A 0.64 15
CRPWREXH021A01 N/A 0.9 N/A 15
CRPWREXH022A01
CRPWREXH080A00
CRPWREXH023A01
CRPWREXH081A00
LEGEND
MCA — Maximum Circuit Amps
MOCP — Maximum Overcurrent Protection
N/A — Not Applicable
*For separate power source.
230V 460V 575V
3.3 N/A 1.32 15
N/A 1.8 N/A 15
NOTE: For R-410A units, refer to unit nameplate for MCA and
MOCP for installed power exhaust. For R-22 units, use the calculations detailed below.
Check MCA and MOCP when power exhaust is powered
through the unit (must be in accordance with NEC and/or local codes). Determine the new MCA including the power exhaust using the following formula:
MCA New = MCA unit only + MCA of Power Exhaust
For example, using a R-22 gas heat, electric cooling, 6-ton
unit with MCA = 28.9 and MOCP = 35, with
CRPWREXH030A01 power exhaust:
MCA New = 28.9 amps + 1.5 amps = 30.4 amps
If the new MCA does not exceed the published MOCP, the
MOCP would not change. The MOCP in this example is 35
amps, the MCA New is below 35, therefore the MOCP is acceptable. If “MCA New” is larger than the published MOCP,
raise the MOCP to the next larger size. For separate power,
the MOCP for the power exhaust will be 15 amps per NEC.
NOTE: For 575-v installations, a field-supplied and installed
transformer (part no. HT01AH859) must be used with 208/230v
power exhaust.
The vertical power exhaust can be used with 3 different
types of economizers. While the physical installation of the
power exhaust assembly stays the same, the wiring differs
among the three economizers types. These instructions describe the installation and wiring for each type. The 3 types
are:
• EconoMi$er IV with controller W7212
• EconoMi$er2 without controller. It is generally used with
a separate PremierLink controller or a field-supplied
building management system.
• EconoMi$er X with controller W7220.
2
MCA
MOCP*
Installing the Vertical Power Exhaust
POWER
EXHAUST
KNOCKOUTS
ECONOMI$ER
SHIPPING
BLOCKS
POWER
EXHAUST
ASSEMBLY
WARNING
Electrical shock can cause personal injury and death.
Before beginning any modification, be certain that the
main-line electrical disconnect switch is in the OFF position. Close the main gas supply shutoff valve. Tag disconnect switch and gas valve with suitable warning labels.
NOTE: Before installing, ensure voltage of power exhaust
agrees with power supply to equipment.
1. Turn off unit power supply and install lockout tag. For
gas units, turn off the gas supply
2. Remove the power exhaust knockout plugs located on
the lower left side of the EconoMi$er accessory. (See
Fig. 2.)
Fig. 2 — Power Exhaust Knockout Location
3. Remove the RTU unit filter panel to allow access to the
inside of the rooftop.
4. The panel covering the horizontal return opening on the
unit may also be removed for easier access and installation. Be sure to replace this panel when installation is
complete.
5. Install the vertical economizer per the instructions provided with the economizer. Do not install the rainhood
shipped with the economizer. Set aside the aluminum air
filter for use with the power exhaust.
6. Remove fan shield so power exhaust can lay flat without
bending the shield or damaging the roof.
7. Remove the shipping blocks from the bottom of the
accessory vertical power exhaust. (See Fig. 3.)
Fig. 3 — Shipping Block Removal
8. There may be a hinged door panel in place of the filter
panel. Open the hinged door, remove the screws and
hinges, remove the door and set it aside. Keep all screws
and hinges.
9. Place the power exhaust close to the EconoMi$er to
allow for wiring harness connection.
CAUTION
Failure to follow this caution may result in equipment damage.
Be careful to route wires to avoid pinching or cutting
during assembly. It can be difficult to protect the wires
while attaching the power exhaust to the unit.
10. Follow the wiring instructions specific to the
EconoMi$er. Be sure power exhaust wiring does not
interfere with damper operation.
Power Exhaust Wiring with EconoMi$er IV and
EconoMi$er X
Follow these instructions if using the vertical power ex-
haust with EconoMi$er IV or EconoMi$er X accessories.
1. The 2-wire low voltage harness from the power exhaust
and the 24 to 36 in. (610 or 915 mm) low voltage extension harness are plugged together for shipping. Unplug
these 2 harnesses for installation.
2. Insert the 2-wire low voltage harness plug from the
power exhaust into the top knockout on the EconoMi$er.
(See Fig. 2.)
3. From the rear of the EconoMi$er, connect the 24-in.
(601mm) low voltage extension harness plug to the
power exhaust harness.
4. For EconoMi$er IV: Route the other end of the low volt-
age extension harness to the EconoMi$er IV controller.
(See Fig. 4.) The harness is connected to the controller
by connecting the tan wire to the tan wire 24 VAC COM
terminal on the controller. The terminal on the gray wire
is connected to terminal EF1 on the controller. See Fig. 6
and 7 for EconoMi$er wiring diagrams. Install the gray
jumper wire on the controller from the exhaust fan terminal (EF), to the 24 VAC HOT terminals. The gray jumper
is shipped wire tied to the control harness.
For EconoMi$er X: Route the other end of the low voltage extension harness to the EconoMi$er X 12 pin plug,
(PL6). (See Fig. 5.) The gray wire from the low voltage
extension harness connects to the yellow wire coming
from terminal 8 in the 12 pin plug. The tan wire from the
low voltage extension harness connect to the brown wire
coming from terminal 4 in the 12 pin plug. See Fig. 6 and
7 for EconoMi$er X wiring diagrams.
5. The high voltage harness from the power exhaust and the
high voltage extension harness are plugged together for
shipping. Unplug these 2 harnesses for installation.
6. Insert the high voltage harness plug from the power
exhaust into the bottom knockout on the EconoMi$er.
(See Fig. 2 and 4.)
R-410A Rooftop Models Only: For single point wiring
application, connect the power exhaust power wire harness to the compressor contactor or indoor fan contactor
in the control box. Install the power exhaust power wire
harness into the pressure lugs on the compressor contactor or indoor fan contactor, used for the field power wiring also.
3
7. From the rear of the EconoMi$er, connect the long high
COIL
FILTERS
HVAC UNIT
W7212 CONTROLLER
24-IN. (610mm) LOW VOLTAGE
EXTENSION HARNESS
ECONOMI$ER
ECONOMI$ER/POWER
EXHAUST
OUTDOOR AIR HOOD
2-WIRE
LOW
VOLTAGE
HARNESS
POWER EXHAUST
ROOF
HIGH
VOLTAGE
HARNESS
KNOCKOUTS
UNIT ROOF CURB
134-IN. (3406mm)
OR 194-IN. (4928mm)
HIGH VOLTAGE
EXTENSION HARNESS
COIL
FILTERS
HVAC UNIT
24-IN. (610mm) LOW VOLTAGE
EXTENSION HARNESS
ECONOMI$ER
ECONOMI$ER/POWER
EXHAUST
OUTDOOR AIR HOOD
2-WIRE
LOW
VOLTAGE
HARNESS
POWER EXHAUST
ROOF
HIGH
VOLTAGE
HARNESS
KNOCKOUTS
UNIT ROOF CURB
134-IN. (3406mm)
OR 194-IN. (4928mm)
HIGH VOLTAGE
EXTENSION HARNESS
voltage extension harness plug to the power exhaust harness. (See Fig. 4-8.)
8. Route the other end of the long high voltage extension
harness through the HVAC unit to the control box. (See
Fig. 8.) The harness must be routed through the
grommets provided in the unit. Do not drill routing holes.
Be careful not to route the power exhaust harness on top
of the indoor coil. Wire the end of the high voltage
harness extension to the power exhaust power source.
(See Fig. 6 and 7.)
Fig. 4 — Power Exhaust Harness Installation for EconoMi$er IV with W7212 Controller
Fig. 5 — Power Exhaust Harness Installation for EconoMi$er X with W7220 Controller
4
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