CRPWREXH030A01,CRPWREXH021A01--CRPWREXH023A01For Use With VerticalEconomi$ert IV orEconomi$ert2 Only

Installation Instructions

Small Rooftop UnitsAccessory Vertical Power Exhaust

Gas Heating/Electric Cooling,Electric Cooling, and Heat Pump Units

2 to 12---1/2 Ton

TABLE OF CONTENTSPACKAGE CONTENTS 1. . . . . . . . . . . . . . . . . . . . . . . . .

PACKAGE USAGE 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SAFETY CONSIDERATIONS 1. . . . . . . . . . . . . . . . . . . .

GENERAL 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INSTALLATION 2--10. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Exhaust Wiring with Economi$er IV 3. . . . . . . . . . . . . .

Power Exhaust Wiring with Economi$er2and PremierLinkt Controller 3. . . . . . . . . . . . . . . . . . . . . . . . .

Connect Power Wiring 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Install Hinged Door Angle 10. . . . . . . . . . . . . . . . . . . . . . . . . .

IMPORTANT: Read these instructions completely beforeattempting to install the accessory power exhaust.

PACKAGE CONTENTSQTY CONTENTS1 Power Exhaust Hood/Fan Assembly1 Low Voltage Wiring Harness with plug21 High Voltage Wiring Harness with plug28 No. 10 x 1 in. (25.4mm) Mounting Screws1 Gasketing Roll1 Sealing Angle1

NOTES:1. The sealing angle was included beginning with unit serialnumbers 3502Gxxxxx. For use with Hinged Panel Units only.

2. Both wiring harnesses are shipped attached to the powerexhaust assembly.

PACKAGE USAGEUNITSIZE

POWER EXHAUSTPART NUMBER

POWER EX-HAUST VOLTAGE

2 to 6 Ton(R---410A andR---22)

CRPWREXH030A01 208/230 V,1 Ph

CRPWREXH021A01 460 V, 3 Ph71/2 to 121/2 Ton(R---22), and7---1/2 to 10 Ton(R---410A)

CRPWREXH022A01 208/230 V, 1 Ph

CRPWREXH023A01 460 V, 3 Ph

NOTE: For 575---v installations, a field---supplied and installedtransformer (part no. HT01AH859) must be used with 208/230 Vpower exhaust.

SAFETY CONSIDERATIONSInstallation and servicing of air--conditioning equipmentcan be hazardous due to system pressure and electricalcomponents. Only trained and qualified service personnelshould install, repair, or service air-conditioning equipment.Untrained personnel can perform the basic maintenancefunctions. All other operations should be performed bytrained service personnel. When working on air-condition-ing equipment, observe precautions in the literature, tagsand labels attached to the unit, and other safety precautionsthat may apply.

Follow all safety codes. Wear safety glasses and workgloves.

Recognize safety information. This is the safety--alert

symbol . When you see this symbol on the unit and ininstructions or manuals, be alert to the potential forpersonal injury.

Understand the signal words DANGER, WARNING, andCAUTION. These words are used with the safety--alertsymbol. DANGER identifies the most serious hazardswhich will result in severe personal injury or death.WARNING signifies a hazard which could result in person-al injury or death. CAUTION is used to identify unsafepractices which may result in minor personal injury orproduct and property damage. NOTE is used to highlightsuggestions which will result in enhanced installation, reli-ability, or operation.

GENERALThe accessory vertical power exhaust is used in conjunctionwith the vertical Economi$er IV or Economi$er2 accesso-ries. For horizontal applications, this power exhaust acces-sory cannot be used. The horizontal power exhaust access-ory must be used for horizontal applications.

See Table 1 and 2 for Economi$er usage. See Fig. 1 fordimensions.

2

Table 1 – Accessory Vertical Economi$er Use

PART NO. DESCRIPTIONCRECOMZR030A02 Economi$er IV with

W7212 controller.CRECOMZR021A03

CRECOMZR022A00 Economi$er2 without controller(typically used with PremierLink ora field---supplied buildingmanagement system).CRECOMZR023A00

Table 2 – Factory--Installed VerticalEconomi$er Use

BASE UNIT SERIAL DESCRIPTIONFrom 4005Gxxxxxto current

Economi$er IV withW7212 controller.

From 0802Gxxxxxto current

Economi$er2 without controller(used with PremierLink orfield-supplied buildingmanagement system).

C07390

Fig. 1 -- Dimensions, Economi$er with Power Exhaust

INSTALLATIONIMPORTANT: Follow all applicable local and nationalelectrical codes when installing this accessory.

The vertical power exhaust can be used with 2 differenttypes of Economi$ers. While the physical installation of thepower exhaust assembly stays the same, the wiring differsbetween the two Economi$er types. These instructions willclearly describe the installation and wiring for each type.The 2 types are:

1. Economi$er2 without controller. It is generally usedwith a separate PremierLink controller or afield--supplied building management system.

2. Economi$er IV with controller W7212.

To install the vertical power exhaust, perform the follow-ing procedure:

1. Turn off unit power supply and install lockout tag.For gas units, turn off the gas supply.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personalinjury and/or death.

Before beginning any modification, be certain that themain--line electrical disconnect switch is in the OFFposition. Close the main gas supply shutoff valve. Tagdisconnect switch and gas valve with suitable warninglabels.

! WARNING

NOTE: Before installing, ensure voltage of power exhaustagrees with power supply to the equipment.

2. Install the vertical Economi$er per the instructionsprovided with the Economi$er. Do not install therainhood shipped with the Economi$er. Set aside thealuminum air filter for use with the power exhaust.

3. Remove the shipping blocks from the bottom of theaccessory vertical power exhaust. (See Fig. 2.)

4. Remove the power exhaust knockout plugs locatedon the lower left side of the Economi$er. (See Fig.3.)

5. Remove the RTU unit filter panel to allow access tothe inside of the rooftop.

6. The panel covering the horizontal return opening onthe unit may also be removed for easier access andinstallation. Be sure to replace this panel wheninstallation is complete.

CRPWREXH

3

C07391

Fig. 2 -- Shipping Block Removal

POWEREXHAUSTKNOCKOUTS

ECONOMI$ER

C07392

Fig. 3 -- Power Exhaust Knockout Location

7. There may be a hinged door panel in place of thefilter panel. Open the hinged door, remove the screwsand hinges, remove the door and set it aside. Keep allscrews and hinges.

8. Place the power exhaust close to the Economi$er toallow for wiring harness connection.

9. Follow the wiring instructions specific to theEconomi$er. Be sure power exhaust wiring does notinterfere with damper operation.

Power Exhaust Wiring with Economi$er IVUse these instructions and diagrams if using the verticalpower exhaust with Economi$er IV.

1. The 2--wire low voltage harness from the powerexhaust and the 24 in (610mm). low voltageextension harness are plugged together for shipping.Unplug these 2 harnesses for installation.

2. Insert the 2--wire low voltage harness plug from thepower exhaust into the top knockout on theEconomi$er. (See Fig. 3 and 4.)

3. From the rear of the Economi$er, connect the 24 in(601mm). long low voltage extension harness plug tothe power exhaust harness.

4. Route the other end of the 24 in. (610mm). lowvoltage extension harness to the Economi$ercontroller. (See Fig. 4.) The harness is connected tothe controller by connecting the terminal on the tanwire to the tan wire lead coming from the 24 VACCOM on the controller. The terminal on the graywire is connected to terminal EF1 on the controller.Install the gray jumper wire on the controller fromthe exhaust fan terminal (EF), to the 24 VAC HOTterminals. See Fig. 5 and 6 for Economi$er wiringdiagrams.

5. The high voltage harness from the power exhaust andthe [134 in. (3406mm) or 194 in. (4928mm)] highvoltage extension harness are plugged together forshipping. Unplug these 2 harnesses for installation.

6. Insert the high voltage harness plug from the powerexhaust into the bottom knockout on the Economi$er.(See Fig. 3 and 4.)

R--410A Rooftop Models Only (2--10 ton):For single point wiring application, connect thepower exhaust power wire harness to the compressorcontactor in the control box. Install the power ex-haust power wire harness into the pressure lugs onthe compressor contactor, used for the field powerwiring also.

7. From the rear of the Economi$er, connect the longhigh voltage extension harness plug to the powerexhaust harness. (See Fig. 4.)

8. Route the other end of the long high voltageextension harness through the HVAC unit to thecontrol box. (See Fig. 7.) The harness must be routedthrough the grommets provided in the unit. Do notdrill routing holes. Be careful not to route the powerexhaust harness on top of the indoor coil. Wire theend of the high voltage harness extension to thepower exhaust power source. (See Fig. 5 and 6.)

Power Exhaust Wiring with Economi$er2 andPremierLink ControllerUse these instructions when installing the vertical powerexhaust with Economi$er2 and PremierLink controller.

1. The low voltage extension harness for 004--007 sizeunits is short [134 in. (3406mm)] and for 008--014size units is long [194 in. (4928mm)]. Theseharnesses will be supplied with the Economi$er2(without controller) beginning with unit serialnumber 2703Gxxxxx. Prior to serial 2703Gxxxxx,the supplied low voltage extension harness [24 in.(610mm) long] is not long enough to reach thePremierLink control board and will have to be fieldextended.The two--wire low voltage harness and the low volt-age extension harness are plugged together for ship-ping. Unplug the harnesses for installation.

CRPWREXH

4

2. Insert the 2--wire low voltage harness plug from thepower exhaust into the top knockout on theEconomi$er2. (See Fig. 3 and 8.)

3. From the rear of the Economi$er2, connect the lowvoltage extension harness plug to the two--wireharness from the power exhaust. (See Fig. 8.)

4. Route the other end of the of the low voltageextension harness to the PremierLink controller. (SeeFig. 8.)

5. The high voltage harness from the power exhaust andthe [134 in. (3406mm) or 194 in.. (4928mm)] highvoltage extension harness are plugged together forshipping. Unplug these 2 harnesses for installation.

6. Insert the high voltage harness plug from the powerexhaust into the bottom knockout on theEconomi$er2. (See Fig. 3 and 8.)

7. From the rear of the Economi$er2, connect the longhigh voltage extension harness plug to the powerexhaust harness. (See Fig. 8.)

8. Route the other end of the long high voltageextension harness through the HVAC unit to thecontrol box. (See Fig. 7.) The harness must be routedthrough the grommets provided in the unit. Do notdrill routing holes. Be careful not to route the powerexhaust harness on top of the indoor coil.

9. Wire the end of the high voltage harness extension tothe power exhaust power source.

UNIT ROOF CURB

HVAC UNIT

W7212CONTROLLER

ROOFKNOCKOUTS

HIGH VOLTAGEHARNESS

ECONOMI$ER/POWEREXHAUSTOUTDOOR AIR HOOD

24-IN. (610mm)LOW VOLTAGEEXTENSION HARNESS

ECONOMI$ER

COVER PANEL OVERHORIZONTALRETURN

2-WIRELOWVOLTAGEHARNESS

COIL

FILTERS

POWER EXHAUST(INSTALLED POSITION)134-IN. (3406mm)

OR 194-IN. (4928mm)HIGH VOLTAGEEXTENSION HARNESS

C07393

Fig. 4 -- Power Exhaust Harness Installation for Economi$er IV with W7212 Controller

CRPWREXH

5

GREEN - YELLOW

GR

EE

N-

YE

LLO

W

GREEN

TAN TAN

WH

ITE

RE

DB

LAC

K

GRAY GRAY

GR

AY

BLA

CK

BLA

CK

BLACKBLACK EXH.FAN #1

EXH.FAN #2

GRD.

GRD.

BLU

E

BLU

E

BROWN BROWN

RELAY

TO ECONOMI$ERACTUATOR

24 VACHOT

24 VACCOM

EF 1

+

3

1

2

3

A B

1 3

7 9

4 6

33

11

22

44

4

BLACK

REDEND

SWITCHPLUG

POWER LINEPLUG

C1 C2

TRANSFORMERNO. HT01AH859(FIELD-SUPPLIEDAND INSTALLED)

575V

TO 575V POWER

PRIMARY

SECONDARY

220V

BLA

CK

RE

D

3

OR

FIELDSUPPLIED

FUSEDDISCONNECT

FIELD SUPPLIED2 x 4 JUNCTION BOX

GROUND

FOR 575-V POWER SUPPLY

FOR 208/230-V SEPARATEPOWER SUPPLY

2

ECONOMI$ERCONTROLLER 2

1

2

4

1

2

4

3

POWEREXHAUSTACCESSORY

EF

NOTES:575 V transformer No. HT01AH859 is ordered sepa-rately from power exhaust.Economizer actuator and controller are shipped withthe Economizer - not with power exhaust.Connections from End Switch plug to the Economizercontroller are made by installer.If a single power source is to be used, size wire toinclude power exhaust MCA and MOCP.Check MCA and MOCP when power exhaust is pow-ered through the unit. Determine the new MCA includ-ing the power exhaust using the following formula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using an electric cooling, 6-ton R-22 unit with MCA = 28.9 and MOCP = 35, withCRPWREXH030A01 power exhaust. MCA New = 28.9 amps + 1.6 amps = 30.5 ampsIf the new MCA does not go over the MOCP pub-lished, then MOCP would not change. The MOCP inthis example is 35 amps, the MCA New is below 35,

larger size. For separate power, the MOCP for thepower exhaust will be 15 amps per NEC.

Field Supplied Wiring

1

2

3

4

FIELD

POWER

SUPPLY

BLK

YEL

BLU

GRN/YEL

To C11

To C23

To IFC13

therefore the MOCP is OK. If “MCA New” is larger thanthe published MOCP, raise the MOCP to the next

C07489

Fig. 5 -- Power Exhaust Wiring for Economi$er IV with Controller W7212 — 208/230 V and 575 V Units

CRPWREXH

6

WHI T E

GR EE N - Y E L L O W

GRD

WH

I T E

B

L AC

K

B L A

C K

W H

I T E

T A N

G R A Y

+

G R

A Y

GR A Y

T A N

B L A

C K

R

E D

B L U E B L U E

RE D

G R E E N

T O E C O N O M I$ER ACTU A T O R

A A B B

8 9

1 1 2 2 3 3

7 7

5 4 6 6

E X H . F A N # 1

E X H . F A N # 2

R E L A Y # 1

3

1

2

3

1

2

4

3 3

1 1

2 2

4 4

4

1

2

BLACK BLACK

BR

OW

N

BR

OW

N

POWE R LIN E PLU G

RE L A Y # 2

4 5

8

E F 1

EN D SWITC H

PLU G

24 V HO T

24 V CO M

E C O N O M I$ER C O N T R O L L E R 1

O R

1

2

4

3

FIE L D SUPPLIE D 2 x 4 JUNCTIO N BO X

GROUN D

FIE L D SUPPLIE D

FUSE D DISCONNEC T

SE P AR A T E POWE R SOURC E

GR

E E

N

RE

D

WH

I T E

B L A

C K

GR A Y GR A Y

9

GR A Y

GR A Y

POWE R EXHAUS T ACCESSO R Y

E F

N O T E S: Economi$er actuator and controller are shipped with the Economi$erno t wi t h p o w e r e x haus t . Conne c t i on s f r o m En d S wi t c h P l u g t o t h e Economi$er controller are madeb y i n s t all e r . I f a s ingl e p o w e r s ourc e i s t o b e u s ed , s i z e w i r e t o i nclud e p o w e r e x haus t M C A an d M O C P . Che c k M C A an d M O C P whe n p o w e r e x haus t i s p o w ere d t hro u g h t h e uni t . D e t e r min e t h e n e w M C A i ncludin g t h e p o w e r e x haus t u s i n g t h e f oll o win g f o r m ula : M C A N e w = MC A uni t onl y + M C A o f P o w e r E x hau s t For example, using an electric cooling, 6-ton R-22 unit with MCA = 28.9 andM O C P = 35 , wi t h CR P W R E X H030A0 1 p o we r e x haus t . M C A N e w = 28 . 9 a mp s + 1 . 6 a mp s = 30 . 5 a mp s I f t h e n e w M C A doe s no t g o o v e r t h e M O C P pu b l i s hed , t he n M O C P woul d not c hange . T h e MO C P i n t hi s e x a m p l e i s 3 5 a m p s , t h e M C A N e w i s bel o w

F i e l d S u pp l ie d W i r i n g

1

2

3

FIELD

POWER

SUPP L Y

BLK

YE L

BLU

GRN/YE L

T o C 1 1

T o C23

T o IFC13

EQUIP GND

35, therefore the MOCP is OK. If “MCA NEW” is larger than the publishedMOCP, raise the MOCP to the next larger size. For separate power, theMOCP for the power exhaust will be 15 amps per NEC.

C07490

Fig. 6 -- Power Exhaust Wiring for Economi$er IV with Controller W7212 — 460 V Units

Field--Installed PremierLink Control (Fig. 9)Wire the power exhaust to the orange wire of theHS3/EXH/RVS (terminal J8, pin 3) and a common termi-nal. Common is available from PremierLink terminal J1 orthe common side of the unit control power transformer (thebrown leads that go to unit ground).

NOTE: When the PremierLink board is configured for aheat pump, it does not require the HS3/EXH/RVS, allowingthis terminal to be used for the power exhaust.

Connect the tan wire from the low voltage extension har-ness to J8--3 and the gray wire to common terminal. Com-mon is available from PremierLink terminal J1 or the com-mon side of the unit control power transformer (the brownleads that go to unit ground). The other end of the harnessis connected to the power exhaust wiring.

Factory--Installed PremierLink ControlThe PremierLink J8--3 terminal is factory wired to a termi-nal board TB2--8 (located in the low voltage section to theleft of the control box). The tan wire from the harnessshould be routed and wired to TB2--8. The gray wire shouldbe routed and wired to TB2--C (brown wires) on the termi-nal board.

CRPWREXH

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HIGH & LOW VOLTAGE WIRING HARNESS

ECONOMI$ER

Low Voltage Harnessnote 1

FILTER

COIL

INDOORFAN

High Voltage Harness

To RTUPower Supply

RTU CONTROL BOX

note 1

note 2

MAIN POWERLINE FROM

DISCONNECT

Field suppliedconnectors

Notes:

1. For units with Economi$er 2, route high and low voltage wires to the RTU controller in RTU control box. Use separate knockout for high and low voltage wires.

2. Ensure main power line, disconnect and fuse/breaker are sized per National Electric Code

C08020

Fig. 7 -- Power Line Harness Routing (Top View of Unit Shown)

Operational Notes For Testing PurposesIf the “continuous power exhaust” function is disabled, thepower exhaust fan will operate during Economi$er purgecycles when the Economi$er damper position is above theconfigured minimum value. If enabled, the power exhaustfan will follow the supply fan’s operation for PremierLinkversion 1.2 and will follow the occupancy configuration forPremierLink version 1.3.The PremierLink “Auxiliary Output” function defines thespecific use of the auxiliary output (HS3/EXH/RVS) for thepower exhaust. The output will be energized or deenergizedby the appropriate algorithm that uses that specific output.A setting of 1 = Exhaust fan output.

The Power Exhaust set point in the set point table deter-mines the power exhaust damper “percent open” when thepower exhaust is energized. The damper percentage setpoint has a 10% hysteresis.If “Continuous” in the service configuration table is set to“enable”, the power exhaust output will energize when oc-cupied (for PremierLink controls version 1.3 and later ) andwill be energized when the supply fan relay is on (for ver-sions prior than 1.3).

CRPWREXH

8

UNIT ROOF CURB

HVAC UNIT

ROOFKNOCKOUTS

HIGH VOLTAGEHARNESS

ECONOMI$ER/POWEREXHAUST OUTDOORAIR HOOD

ECONOMISER2

COVER PANEL OVERHORIZONTALRETURN

2-WIRELOWVOLTAGEHARNESS

134-IN. (3406mm) OR 194-IN. (4928mm)LOW VOLTAGE EXTENSION HARNESS TO PREMIERLINK CONTROLLER

COIL

FILTERS

POWER EXHAUST(INSTALLED POSITION)134-IN. (3406mm)

OR 194-IN. (4928mm)HIGH VOLTAGE EXTENSION HARNESS

C07395

Fig. 8 -- Power Exhaust Harness Installation with Economi$er2 and PremierLink Controls

PWR

HS3/EXH/RVS

HS2

HS1

CMP2

CMP1

FAN

RED

ORN

PNK

WHT

BLU

YEL

GRN

BRN

RED

RED

CU

T F

OR

DU

AL

TR

AN

SF

OR

ME

RE

QU

IPM

EN

T

RE

LAY

S

CU

T T

OIS

OLA

TE

CO

NT

RO

LLE

RP

OW

ER

PW

RJ1

J8

R

Y1

Y2

W1

W2

G

C

X

GRNREDYEL

BLU

RMTOCC

CMPSAFE

FSDRED

WHTSFS

REDPNKRED

ORNRED

ENTH

NOT USED

DIS

CR

ET

EJ4

DDC CONTROLRED

RED

PREMIERLINKTERMINAL

J8

R-22 ROOFTOP UNIT

C07491

Fig. 9 -- Typical PremierLink Control Wiring To Rooftop R--22 Units

CRPWREXH

9

Connect Power Wiring1. Wire the end of the power exhaust Power Linewiring harness to the power exhaust power source.See Fig. 5 and 6 for Economi$er IV andEconomi$er2. Follow all local and NEC (NationalElectrical Code) codes. If a single power source is tobe used, size the wire to include power exhaust MCAand MOCP. (See Table 3.)Check MCA and MOCP when power exhaust ispowered through the unit (must be in accordancewith NEC and/or local codes). Determine the newMCA including the power exhaust using the follow-ing formula:MCA New = MCA unit only + MCA of Power Ex-haustFor example, using a R--22 gas heat, electric cooling,6--ton unit with MCA = 28.9 and MOCP = 35, withCRPWREXH030A01 power exhaust.MCA New = 28.9 amps + 1.6 amps = 30.5 ampsIf the new MCA does not exceed the publishedMOCP, then MOCP would not change. The MOCPin this example is 35 amps, the MCA New is below35, therefore the MOCP is acceptable. If “MCANew” is larger than the published MOCP, raise theMOCP to the next larger size. For separate power,the MOCP for the power exhaust will be 15 amps perNEC.

NOTE: For 575--v installations, a field--supplied andinstalled transformer (part no. HT01AH859) must be usedwith 208/230--v power exhaust. (See Fig. 5.)

2. Make sure all wiring is secure. Use field--suppliedwire ties if necessary. Be sure that wiring does notinterfere with operation of the HVAC unit,Economi$er, or power exhaust.

3. For units with a standard filter panel (i.e., no hingeddoor): Install the gasketing (provided) on the back ofpower exhaust side mating flangees.

NOTE: This step does not apply to units with a hingeddoor.

4. Lift power exhaust and install over Economi$erusing the no. 10 x 1 in.. long screws provided. Makesure wiring harnesses are properly secured.

5. Locate the aluminum filter shipped with theEconomi$er. Open the filter clips under the top hoodof the power exhaust. Slide aluminum filter into theoutside air opening of the power exhaust. Filter willslide past filter clips. Close filter clips, which willlock filter in place.

6. Adjust the power exhaust set point on theEconomi$er controller to the desired activation point.

7. For units with a standard filter access panel, reinstallthe unit filter access door.For units with a hinged access door, install thehinged door seal angle included in the power exhaustkit using the instructions in this instruction. Do notproceed unless the sealing angle is installed. Unitswith a hinged door that do not have a sealing anglemay not have a watertight seal.

8. Return power to unit and remove lockout tag.9. Test power exhaust operation by setting the powerexhaust set point on the Economi$er controller to0%. Power exhaust performance is shown in Fig. 10.

0

1000

2000

3000

4000

5000

0 0.1 0.2 0.3 0.4 0.5

2-6 Ton

7.5-12.5 Ton

RETURN DUCT STATIC PRESSURE (in wc)

EXH

AU

STA

IRFL

OW

(cfm

)

C07399

Fig. 10 -- Power Exhaust Performance

CRPWREXH

10

Table 3 – Power Exhaust Electrical Data

POWER EXHAUSTPART NO.

MCA(230 v)

MCA(460 v)

MCA(575 v)

MOCP(for separatepowersource)

CRPWREXH030A01 1.5 N/A 0.64 15CRPWREXH021A01 N/A 0.9 N/A 15CRPWREXH022A01 3.3 N/A 1.32 15CRPWREXH023A01 N/A 1.8 N/A 15

LEGENDMCA --- Minimum Circuit AmpsMOCP--- Maximum Overcurrent ProtectionN/A --- Not Applicable

UNIT CORNERPOST

GASKETING

POWEREXHAUST

C07397

Fig. 11 -- Gasketing Location Detail(Standard Filter Panel Only)

CONTROLLERALUMINUMFILTER

POWEREXHAUST

C07398

Fig. 12 -- Power Exhaust Installed on Unit

Install the Hinged Door AngleFollow these instructions if the unit has a hinged panelinstead of a standard filter panel. Hinged Door AngleCRPECONV003A00 is for 2 to 6 ton units and CRPE-CONV004A00 is for 71/2 to 121/2 ton units.

1. Find the sealing angle and three screws provided inthe power exhaust kit.

2. Attach the sealing angle to the top of the powerexhaust hood using the screws provided. Refer toFig. 14. Note that the gasketing flange will be facingout.

3. If there are NO pre--drilled holes in the PowerExhaust hood: Lay the hinged panel, insulation sideup, on top of the hood so that the hinge screw holesalign with the pre--drilled screw holes in the sealingangle. (For hoods with pre--drilled holes, skip to Step7.)

4. Check the alignment of the hinged door with the sideof the filter opening to be sure it will close properly.

5. Use a pencil to mark the hood where the screw holeswill be.

6. Remove the hinged door and drill four (4) 11/64 in.holes where the marks are.

GASKETLOCATION(STANDARDFILTERPANELONLY)

GASKET LOCATION

POWER EXHAUSTSIDE FLANGES

C07396

Fig. 13 -- Power Exhaust Installation

NOTE: The sealing angle will be in place; use the holes init as a guide.

7. Place the door and hinges back on the unit. Screwthrough the door hinges and sealing angle into theflanged top of the hood using the 4 screws set asidewhen the hinged door was removed. (See Fig. 15.)

8. Close the hinged door and adjust handles ifnecessary.

CRPWREXH

11

GASKETEDFLANGE

SEALINGANGLE

SCREW ANGLETO HOOD (3)

SEENOTE

SEENOTE

C07400

Fig. 14 -- Install Sealing Angle

POWER EXHAUST HOOD

SEALING ANGLE HINGED DOOR

C07401

Fig. 15 -- Re--Install the Hinged Door CRPWREXH

12

Copyright 2008 CAC / BDP D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 8/08

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

Catalog No:IIK---CRPWREXH021---02

Replaces: IIK---CRPWREXH021---01

CRPWREXH