Carrier COMFORTLINK 48HG014 Bedienungsanleitung

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

PC 111 Catalog No. 534-80230 Printed in U.S.A. Form 48/50H,P-14SI Pg 1 3-05 Replaces: New

Book1144

Tab 1a1b6a6b

Installation Instructions

Power Exhaust Part Numbers: CRPWREXH018B00,

CRPWREXH019B00, CRPWREXH020B00

Barometric Relief Part Number: CRBARRLF003B00

CONTENTS

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

GENERAL ...................................... 1,2

INSTALLATION ................................. 2-6

Barometric Relief Damper ........................6

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can

be hazardous due to system pressure and electrical compo-

nents. Only trained and qualified service personnel should

install, repair, or service air-conditioning equipment.

Untrained personnel can perform the basic maintenance

functions of cleaning coils and filters and replacing filters. All

other operations should be performed by trained service

personnel. 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.

GENERAL

Consult price pages for the economizer accessory if the unit

is not already equipped. Refer to Table 1 for a complete list of

parts contained in each kit.

Each hood assembly has 2 power exhaust blowers.

Brackets, wires and extra gasket screws are also included in the

package.

POWER EXHAUST PACKAGE USAGE

Table 1 — Power Exhaust/Barometric Relief Parts List

IMPORTANT: There are two different design revision

48/50HG units currently being produced. Because of

these differences, there are two different versions of

this accessory. This accessory literature covers acces-

sories manufactured for units with design revision 1.

Design revision 0 units are not covered in this acces-

sory book.

To determine the design revision, refer to the full unit

model number. See Fig. 1 for an example of an HG

model number. The design revision number in the model

number nomenclature is located in position 13.

Turn off main power to the unit and tag disconnect switch

before performing service or maintenance operations. Elec-

trical shock could cause personal injury or death.

IMPORTANT: The power exhaust accessory requires

the use of the economizer. Power Exhaust will not

operate without the use of an economizer.

UNIT VOLTAGE PART NUMBER

48/50HG014-028,

48/50PG20-28

208/230 V CRPWREXH018B00

460 V CRPWREXH019B00

575 V CRPWREXH020B00

ITEM DESCRIPTION DESCRIPTION (QUANTITY)

CRPWREXH018B00 CRPWREXH019B00 CRPWREXH020B00 CRBARRLF003B00

Blower/Damper

Assembly

Power Exhaust

(208/230 V)

Power Exhaust

(460 V)

Power Exhaust

(575 V) Barometric Relief

Contactor HN52KC010 (2) HN52KC010 (2) HN52KC010 (2) —

Screw 8-18 x 1/2

″AL56AU166 (4) AL56AU166 (4) AL56AU166 (4) —

Power Wiring Harness 50TG402807 50TG402807 50TG402807 —

Control Wiring Harness 50TG403083 50TG403083 50TG403083 —

Snap Bushing HY93NH091 HY93NH091 HY93NH091 —

Plug Plate 50TG500128 50TG500128 50TG500128 —

Left Hand Bracket 50TG502765 50TG502765 50TG502765 50TG502765

Right Hand Bracket 50TG502865 50TG502865 50TG502865 50TG502865

Screw - 1/4

″x3/4

″AL31AZ308 (9) AL31AZ308 (9) AL31AZ308 (9) AL31AZ308 (9)

Seal Strip ————

48/50HG014-028, 48/50PG20-28

with

COMFORT

LINK™ Controls

Power Exhaust and

Barometric Relief Accessory

Fig. 1 — Model Number Chart

PositionNo.12345678 9 10 11 12 13 14 15 16

Example:48HGD016AA C 611AA

DESIGN REVISION NUMBER

INSTALLATION

1. Remove return end cover and save screws for reuse. See

Fig. 2.

2. As shown in Fig. 3, the power exhaust motor is factory

wired to terminal 1 (high speed). To change motor speed,

move the black wire from terminal 1 to terminal 2 (medi-

um speed) or terminal 3 (low speed). If high speed is

desired, no wiring changes are required. The motor

closest to the control box is PEM1. The motor furthest

away from the control box is PEM2.

3. Position the power exhaust damper assembly at the return

end of the unit. Add seal strip to the edges of the hood

assembly. See Fig. 4. The long piece of seal strip is for the

top and bottom and the short piece is for the two sides.

4. Remove patch plate attached to the bottom of the com-

pressor partition behind compressor B1. Save screws.

5. Feed 6-pin connector of the motor harness through hole

created by the removal of the patch plate. Pull as much

wire through the hole as possible without causing damage

to the harness.

6. Place the power exhaust/damper assembly into the unit.

The accessory should pivot on the unit end panel. See

Fig. 5.

7. Fold power exhaust/damper assembly back into the unit

asshowninFig.6.

8. Install the side brackets using the screws included (1/4x

3/4-in.). Be sure to properly position the hood. See Fig. 7.

9. Tilt the assembly out of the unit and into final operating

position. See Fig. 8.

10. Secure the assembly using the screws removed earlier

from Step 1.

11. Snap the 6-pin connector of the control box harness into

the plug plate provided with the accessory.

12. Plug the 6-pin connectors together (PL9). Bundle up

excess wire in the motor harness and secure with a

wire tie. When bundling wires, be sure to gather wires

as close as possible to compressor partition so as to

reduce the overall length of the wires. Push excess

wire through hole in partition. Secure plate with

screws originally used to secure patch plate. This will

ensure that the extra wire length will not come into

contact with moving parts.

13. Remove the control box cover and install the two power

exhaust contactors to the side of the control box using the

screws included with the kit (8-18 x 1/2-in.). See Fig. 9.

14. Install the plastic snap bushing into the bottom of the con-

trol box as shown in Fig. 10.

15. Route the power exhaust harness through the compressor

section and into the control box, through the snap bush-

ing. See Fig. 10.

16. Connect the wires of the harness in the control box as

shown in the wiring diagram. The harness wires are

labeled to match the corresponding component and

connection position.

When removing panels from the unit, be careful not to

damage roof or other surfaces with the panels.

Fig. 2 — Unit Return End (48/50HG Units)

LEGEND

Fig. 3 — Power Exhaust Motor Wiring

(48/50HG Units)

CAP — Capacitor

PEM — Power Exhaust Motor

PL — Plug

Fig. 4 — Hood Assembly

17. 48/50HG028 208/230-v Units only:

Do not install control wiring harness included with the

accessory. The control wires for the power exhaust

contactors are included with the unit harness as a bundle

and can be connected to the appropriate terminals on the

contactors. See Fig. 11.

All other units:

Install control wiring harness as indicated in Fig. 12.

18. Dress the wiring in the control box so that the wires are

adequately supported and secured using the wire ties

supplied.

19. Replace the control box cover.

20. Re-apply power to the unit.

21. The ComfortLink™ control can now be configured to

operate the power exhaust. To do this the unit must be

configured for Power Exhaust Enabled (default is

DISABLED), Power Exhaust 1 Percentage setting

(default is 40%), Power Exhaust 2 Percentage setting

(default is 75%). These configurations are accomplished

through the Scrolling Marquee Display by using the

Configuration menu.

22. The control system must be configured to use the power

exhaust. A password may be required to edit the configu-

rations, depending on the previous settings configured in

the unit. Default password is “1111”.

23. To access the configuration, use the arrow keys to scroll

the red LED on the display to the “Configuration”

position and press . Use the arrow keys to scroll

down until the display reads “ECON”, and press the

key. At the Power Exhaust Enabled (PE.EN)

setting, press twice. The display should be

flashing DSBL. Use the arrow keys to change the

configuration to “ENBL” and press and then

. Use the arrow keys to scroll down to the

Power Exhaust 1 Percentage setting (PE1.P) and press

twice. Use the arrow keys to increase or

decrease the economizer position percentage that will

start the first power exhaust fan, and press and

.Usethearrowkeystoscrolldowntothe

Power Exhaust 2 setting (PE2.P) and press

twice. Use the arrow keys to increase or decrease the

economizer position percentage that will start the second

power exhaust fan, and press and .

24. Configuration of the power exhaust is now complete.

Pressing the key several times will return the

display to the auto scroll setting.

25. Consult the Controls and Troubleshooting Guide for

complete instructions on using the ComfortLink control

system.

26. The unit is now ready for normal operation.

ENTER

ESCAPE

ENTER

ESCAPE

ENTER

ENTER ESCAPE

ESCAPE

BRACKET

POWER

EXHAUST

CONTACTOR

Fig. 8 — Assembly in Operating Position

Fig. 10 — Compressor Section

Fig. 6— Power Exhaust/Relief Damper Assembly

Fig. 7— Bracket and Hood Positioning

Fig. 9 — Control Box Detail

Fig. 5 — Pivot Point on Unit Panel

GRN/YEL

SECONDARY

24V V24

TRAN3

24V

ECONO

CONTROL

BOARD

(ECB)

FIOP/

ACCESSORY

C2C1 PEC

RED

BLU

BRN

RED

C.A1

3.2 AMPS

CB3

RED

BRN

Fig. 11 — Power Exhaust Wiring Diagram — 48/50HG028 208/230-v Units

LEGEND

C—Contactor

CAP — Capacitor

ECB — Economizer Control Board

FIOP — Factory-Installed Option

FU — Fuse

IAQ — Indoor-Air Quality

OAQ — Outdoor-Air Quality

PEC1 — Power Exhaust Contactor

PEM — Power Exhaust Motor

PL — Plug

Fig. 12 — Power Exhaust Wiring Diagram — All Units Except 48/50HG028 208/230-v Units

LEGEND

C—Contactor

CAP — Capacitor

CB — Circuit Breaker

ECB — Economizer Control Board

FIOP — Factory-Installed Option

FU — Fuse

PEC — Power Exhaust Contactor

PEM — Power Exhaust Motor

PL — Plug

TRAN — Transformer

Barometric Relief Damper

1. Remove return end cover. Save screws for reuse. See

Fig. 2.

2. Position the barometric relief assembly at return end of

unit. Add seal strip to the edges of the hood assembly. See

Fig. 4. The long piece of seal strip is for the top and bot-

tom. The short piece is for the two sides.

3. Place the barometric relief assembly into the unit. The

accessory should pivot on the unit end panel. See Fig. 5.

4. Fold barometric relief assembly back into the unit. See

Fig. 6.

5. Install the side brackets using the 1/4x3/4-in. screws. Be

sure to properly position the hood. See Fig. 7.

6. Tilt the assembly out of the unit and into final operating

position. See Fig. 8.

7. Secure the assembly using the screws removed from

Step 1.

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

PC 111 Catalog No. 534-80230 Printed in U.S.A. Form 48/50H,P-14SI Pg 8 3-05 Replaces: New

Book1144

Tab 1a1b6a6b

Andere Handbücher für COMFORTLINK 48HG014

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