Carrier AIRSTREAM 42BHE, Installation, Start-Up And Service Instructions Manual, Page: 1 / 12

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53420006-01 Printed in U.S.A. Form 42B-3SI Pg 1 2-11 Replaces: 42B-2SI
Installation, Start-Up and Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Step 1 — Unpack and Inspect Unit
. . . . . . . . . . . . . . . 2
Step 2 — Protect Unit from Damage
. . . . . . . . . . . . . . 2
Step 3 — Prepare Jobsite
. . . . . . . . . . . . . . . . . . . . . . . . 2
Step 4 — Prepare Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 5 — Position Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 6 — Make Piping Connections
. . . . . . . . . . . . . . 4
Step 7 — Make Electrical Connections
. . . . . . . . . . . 5
Step 8 — Make Duct Connections
. . . . . . . . . . . . . . . . 6
Step 9 — Install Mixing Box
. . . . . . . . . . . . . . . . . . . . . . 6
Step 10 — Make Final Preparations
. . . . . . . . . . . . . . 6
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Air System Balancing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7,8
Clean Coils
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Check Drain
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Fan and Motor Bearings
. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Align Pulley
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Adjust Fan Belt Tension
. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Clean Fan Wheel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Clean or Replace Air Filters
. . . . . . . . . . . . . . . . . . . . . . 7
Recommended Maintenance
. . . . . . . . . . . . . . . . . . . 8
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Excessive Condensation on Fan Coil Unit Parts
. . 8
Motor Overload
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
START-UP CHECKLIST
. . . . . . . . . . . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Air-handling equipment is designed to provide safe and
reliable service when operated within design specifications. To
avoid injury to personnel and damage to property or equip-
ment, use good judgment and follow safe practices as outlined
below when installing and operating this equipment.
INTRODUCTION
The following contains general installation instructions for
the 42BHE,BVE fan coil units. (See Fig. 1.) Refer to the unit-
wiring diagram installed on the blower housing or specific
manufacturer literature for any other type of factory-mounted
controls.
DANGER
NEVER REACH INTO a unit while the fan is running.
LOCK OPEN AND TAG the fan motor power disconnect
switch before working on unit. In addition, remove the
fuses and take them with you after noting this on tag.
DISCONNECT ALL POWER before attempting any
installation or service. More than one power source may be
supplied to a unit. Power to remote mounted control
devices may not be supplied through the unit.
CHECK THE WEIGHT of assembly and components to
be sure that rigging equipment can handle them safely.
NEVER PRESSURIZE a coil with a non-liquid for leak
testing. A dangerous burst may occur.
DO NOT STEAM CLEAN coils until you are sure all per-
sonnel are clear of the area.
Failure to follow these warnings will result in severe per-
sonal injury or death.
ISOLATORS
(FIELD FURNISHED AND INSTALLED)
WASHER AND
DOUBLE NUT
(FIELD FURNISHED
AND INSTALLED)
Fig. 1 — Component Identification (42BHE Units Shown)
A42-4258
AIRSTREAM™
42BHE,BVE06-40
System Fan Coil Air Conditioners