Carrier 48/50Z030-105 User Manual download pdf

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

PC 111 Catalog No. 534-80200 Printed in U.S.A. Form 48/50A,Z-1SI Pg 1 10-03 Replaces: New

Book 1 1

Tab 1 a 1 b

Installation Instructions

Part Number CRCTLEXP003A00

SAFETY CONSIDERATIONS

Installation of this accessory can be hazardous due to

system pressures, electrical components, and equipment

location (such as a roof or elevated structure).

Only trained, qualified installers and service technicians

should install, start up, and service this equipment.

When installing this accessory, observe precautions in the

literature, labels attached to the equipment, and any other

safety precautions that apply. Follow all safety codes. Wear

safety glasses and work gloves. Use care in handling and

installing this accessory.

INTRODUCTION

The Controls Expansion Module Accessory (CEM) is

required for additional features that are offered from a

ComfortLink™ controller. The following features are supported

by this accessory:

• Fan Status Switch

• Demand Limit — Redline and Load Shed

• Fire Pressurization

• Fire Evacuation

• Fire Smoke Purge

• IAQ (indoor air quality) Switch

• OAQ (outdoor air quality) Sensor

• SAT (supply air temperature) Reset

• Remote Supply Air Set Point

• Demand Limit Controller

• OA (outdoor air) Humidity (48/50Z only)

• Space Humidity (48/50Z only)

• Return Humidity (48/50Z only)

• OA Cfm Control (48/50Z only)

ACCESSORY PACKAGE CONTENTS

INSTALLATION

48/50A Units

1. Inspect the package contents for missing or damaged

parts. File a claim with shipping agency if parts are

damaged. Notify your Carrier representative if any items

are missing.

2. Open and tag all electrical disconnects.

3. Install CEM board onto the mounting bracket with 5 no.

6B-20 x

-in. screws. Add snap bushing. See Fig. 1.

4. Open Main Control Box Access Door. Remove cover

around Scrolling Marquee display.

5. Loosen screws that secure Scrolling Marquee Display

unit (SDU) and remove panel.

6. Disengage connections to SDU and small circuit breakers

mounted on Scrolling Marquee panel.

7. Thread CEM and SDU plugs of accessory wiring harness

assembly, Scrolling Marquee plug, and circuit breaker

wires from the back side of the CEM mounting bracket,

through the snap bushing. See Fig. 2. For 48/50A020-035

use harness assembly A1110315503. For 48/50A040-060

use harness assembly A1110315506.

8. Connect accessory wire harness plugs CEM-J1, CEM-J6

and CEM-J7 to the J1, J6 and J7 terminals of the CEM

Board. See Fig. 3.

ELECTRIC SHOCK HAZARD.

To avoid the possibility of electrical shock,

open and tag all disconnects before install-

ing this equipment.

ITEM QTY

Controls Expansion Module, 30GT515218 1

CEM Mounting Bracket, 30RA500083 (48/50A) 1

Snap Bushing (48/50A) 1

Harness Assembly, A1110315503 (48/50A020-035) 1

Harness Assembly, A1110315506 (48/50A040-060) 1

Harness Assembly, A1110316502 (48/50Z030-105) 1

Screws, no. 6B-20 x

-in. 5

Screws, no. 8-18 x

-in. Pan 4

48/50A020-060 (with

Comfort

Link™ Controls)

48/50Z030-105 (with

Comfort

Link Controls)

Controls Expansion Module (CEM) Accessory

50/60 Hz

SNAP BUSHING

BRACKET

CEM

BOARD

Fig. 1 — CEM Board and Mounting Bracket

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Installation Instructions

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

Page 2 - CEPL130351-01

29. Connect accessory wire harness plug MBB-J2 to the J2terminal of the MBB Board. See Fig. 4 or 5 and Fig. 6.10. Connect accessory wire harness plug

Page 3

3MBB(SHOWN WITH SCROLLINGMARQUEE PANELREMOVED)(SEE FIG. 6)TB5TB6TB5TB6MBB(SHOWN WITHSCROLLING MARQUEEPANEL REMOVED)(SEE FIG. 6)Fig. 4 — Main Control B

Page 4 - Fig. 7 — Attach CEM Bracket

4CEPL130346-01STATUSLENJ1J2J4J3J5J6J7J8J9J10CCNRED LED - STATUS GREEN LED -LEN (LOCAL EQUIPMENT NETWORK)CIRCUITBREAKERSCEM BOARDMBBSCROLLINGMARQUEEDIS

Page 5

5CEM BOARD(SEE FIG. 3)MBBMBB(SEE FIG. 6)CEM BOARD(SEE FIG. 3)MBB(SEE FIG. 6)Fig. 9 — Main Control Box, 48/50Z055-070Fig. 10 — Main Control Box, 48/50Z

Page 6

6CONTROL MODULE COMMUNICATIONSRed LED —Proper operation of the control boards can bevisually checked by looking at the red status LEDs as shownon Fig.

Page 7

Page 8 - Tab 1 a 1 b

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1