Carrier 30RA-900 050 Series Installation & Operation Instructions

Installation and Operation Instructions
Part No: 30RA-900---050; 30RA-900---051; 30RA-900---052
CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Step 1 - Rig and Place the Tank . . . . . . . . . . . . . . . 1
• RIGGING
• PLACING ACCESSORY TANK
• MOUNTING ACCESSORY TANK
• MOUNTING UNIT TO ACCESSORY TANK
Step 2 - Connect Cooler Fluid and Drain Piping . . 7
• PREPARATION FOR YEAR-ROUND OPERATION
• PREPARATION FOR WINTER SHUTDOWN
Step 3 - Make Electrical Connections . . . . . . . . . . . 8
• POWER SUPPLY
• ELECTRIC HEAT
• CONDUIT CONNECTION
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
APPENDIX A - PRESSURE DROP CURVES . . . . . 14

INTRODUCTION

The chilled water storage tank accessory permits a storage tank to
be mounted under the 30RAP chiller. Chilled water storage is rec-
ommended on some applications to maintain a desired loop vol-
ume, allowing the chiller to achieve the desired performance and
control compressor cycling. See Table 1 for usage.
Located in the control box included with the accessory are fasten-
ers to attach the chiller to the accessory tank. In addition to the
parts supplied with the accessory package, the following material
must be field-supplied:
• Water piping between the tank system and the chiller
• Tubing insulation (length determined by installation)
Table 1 - Package Usage
ACCESSORY PART NO.
30RA-900---050
30RA-900---051
30RA-900---052

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning equipment
can be hazardous due to system pressures, electrical components
and equipment location.
Only trained, qualified installers and service technicians should in-
stall, start up, and service this equipment.
When installing this accessory, observe precautions in the litera-
ture and on any labels attached to the equipment, and all other
safety precautions that may apply.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300276-01
Page
UNIT SIZE 30RAP
010,015
018-030
035-060
Printed in U.S.A. Form No. 30RAP-21SI
Chilled Water Storage Tank
WARNING
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation. There may be
more than one disconnect switch. Tag all disconnect locations
to alert others not to restore power until work is completed.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Keep quenching cloth and fire extinguisher nearby when
brazing.
• Use care in handling, rigging, and setting bulky equip-
ment. Refer to Table 2 for tank weights and Fig. 1 and 2
for rigging and weight information.

INSTALLATION

WARNING
Before beginning installation of this equipment, be sure all
power to the unit is disconnected, and that tags are properly
placed to alert others. Electrical shock can cause personal
injury and death.

Step 1 - Rig and Place the Tank

RIGGING
Use spreader bars to rig the unit at a single point with 4 cables and
hooks. Refer to the rigging label on the accessory for details con-
cerning rigging options, shipping weights, distance between lifting
holes, and center of gravity. See Fig. 1.
If overhead rigging is not possible, the accessory may be lifted
from either end, but care must be taken to align forks to slots pro-
vided in each rail for support. Care must be taken not to hit or
damage insulated tanks with forks.
PLACING ACCESSORY TANK
Determine the location of the accessory and 30RAP unit together.
Ensure that the location supports the filled weight of the tank sys-
tem and the chiller. See Table 2 and Fig. 2-5 for weights and di-
mensions. Since the 30RAP chiller mounts on top of the accesso-
ry, there must be at least 3 ft (0.9 m) for servicing and for unre-
stricted airflow on all non-coil sides of the unit, and a minimum of
3.5 ft (1.1 m) clear air space on coil sides. For multiple units, allow
8 ft (2.5 m) separation between units for airflow and service.
MOUNTING ACCESSORY TANK
When the accessory is in the proper location, the use of mounting
holes in base rails is recommended for securing the accessory to
supporting structure, or for mounting the accessory on vibration
isolators if required. See Fig 3-5. Fasteners for mounting the ac-
cessory are field supplied. Be sure the accessory is level to within
1/8 in. per foot for proper oil return in the 30RAP chiller mounted
on top.
Pg 1
30RAP010-060
Accessory
10-23 Replaces: 30RAP-15SI