Carrier 45J Installation, Start-Up And Service Instructions Manual

CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . .1
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Unit Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
CONTROL OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .4
VAV CCN Controls and OPEN VAV Controls . . . . .4
CCN Controls and OPEN VVT Controls . . . . .4
®
VVT
Analog Electric Controls. . . . . . . . . . . . . . . . . . . . . . . .4
Pneumatic Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Direct Digital Controls (By Others). . . . . . . . . . . . . . . .4
No Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Step 1 - Install Fan-Powered Box . . . . . . . . . . . . . . . .4
Step 2 - Make Duct Connections . . . . . . . . . . . . . . . .5
Step 3 - Connect Power Wiring . . . . . . . . . . . . . . . . . .5
Step 4 - Set Up System and Calibrate. . . . . . . . . . . .7
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Initial Start-Up Procedures. . . . . . . . . . . . . . . . . . . . . . . .8
Balancing Carrier Fan Terminals. . . . . . . . . . . . . . . . . .9
Speed Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Setting Fan Air Flow with ECM Motors . . . . . . . . . . .16
PNEUMATIC CONTROLS . . . . . . . . . . . . . . . . . . . . . .17
General - Single Function Pneumatic Controller
Control Sequences (1300-1305, 1400-1401) . . . .17
Units with Single-Function Controllers . . . . . . . . . .17
Units with Multi-Function Controllers
(Sequences 1306-1317 and 1402-1405) . . . . . . . .18
Operation Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Analog Controls Installation and Balancing
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Thermostat Installation . . . . . . . . . . . . . . . . . . . . . . . . . .20
Programming Thermostat . . . . . . . . . . . . . . . . . . . . . . .20
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Fan Motor and Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Fan Motor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Fan Motor Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . .22
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53450003-01
Installation, Start-Up and
Service Instructions
Printed in U.S.A.
Variable Air Volume Terminals

SAFETY CONSIDERATIONS

Air-handling equipment will provide safe and reliable
service when operated within design specifications.
The equipment should be operated and serviced only
by authorized personnel who have a thorough knowl-
edge of system operation, safety devices, and emer-
gency procedures.
Good judgment should be used in applying any manu-
facturer's instructions to avoid injury to personnel or
damage to equipment and property.
Disconnect all power to the unit before performing mainte-
nance or service. Unit may automatically start if power is
not disconnected. Electrical shock and personal injury
could result.
If it is necessary to remove and dispose of mercury contac-
tors in electric heat section, follow all local, state, and fed-
eral laws regarding disposal of equipment containing
hazardous materials.
See Fig. 1 for the Proposition 65 warning label.
! WARNING: Cancer - www.P65Warnings.ca.gov
Fig. 1 - Proposition 65 Warning Label

General

The 45J,K,Q constant volume (series) and 45M,N,R variable
volume (parallel) fan powered boxes (see Fig. 2 and 3) can be
equipped to provide pressure independent, variable volume
(VAV). All units can also be equipped with factory-installed
analog electronic, pneumatic, or variable air volume (VAV)
controls. Units are available with factory-installed electric or hot
water heat.
Form 45-5SI Pg 1
45J,K,M,N,Q,R
Fan Powered
SAFETY NOTE
WARNING
WARNING

PRE-INSTALLATION

8-18 Replaces: 45-3SI