Table of Contents
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Step 2 − Rig and Place Unit . . . . . . . . . . . . . . . . 7
• RIGGING
• PLACING THE UNIT
• VIBRATION ISOLATION
• POSITIONING THE 09BY UNIT
• VERTICAL DISCHARGE
Inlet Filter Kit (If Required) . . . . . . . . . . . . . . . . 8
Step 4 − Install Rain Drain . . . . . . . . . . . . . . . . . 8
Step 5 − Complete Refrigerant Piping . . . . . . . 8
• GENERAL
• REFRIGERANT LINE SIZING
• PRESSURE RELIEF
• REFRIGERANT RECEIVER
• SWEAT CONNECTIONS
• MANIFOLDING CIRCUITS
Step 6 − Ductwork . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 7 − Insulate the Unit . . . . . . . . . . . . . . . . . 11
• GENERAL
• CONTROL CIRCUIT POWER WIRING
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
System Evacuation and Dehydration . . . . . . . . 13
Charging Procedure . . . . . . . . . . . . . . . . . . . . . . . 13
Controls and Rotation of Fans . . . . . . . . . . . 13
Adjust Fan Speed . . . . . . . . . . . . . . . . . . . . . . . . . 13
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-15
Cleaning Condenser Coils . . . . . . . . . . . . . . . . . 13
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Condenser Fan Adjustment . . . . . . . . . . . . . . . . 13
• TO CHANGE FAN WHEEL
• TO REPLACE FAN BEARING
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . 15
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 16
START-UP CHECKLIST . . . . . . . . . . . . . . . . CL-1,CL-2
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2 4
PC 111
Tab
4a 4a
Installation, Start-Up and
Service Instructions
Page
Catalog No. 530-969
Printed in U.S.A.
Air-Cooled Condenser Units
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equip-
ment can be hazardous due to system pressures, electrical
components, and equipment location.
Only trained, qualified installers and service mechanics
should install, start-up, and service this 09BY equipment
(Fig. 1).
When working on the equipment, observe precautions in
the literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work gloves.
Keep quenching cloth and fire extinguisher nearby when braz-
ing. Use care in handling, rigging, and setting bulky
equipment.
ELECTRIC SHOCK HAZARD
Separate power sources (main and control
power circuits) are used for these units. Be
sure both main and control power circuits are
disconnected before servicing.
GENERAL
The 09BY air-cooled condenser is a remote air-cooled con-
denser designed to be used with the 50BZ vertical packaged
units. See Table 1. Airflow is horizontal, both into and out
from the same face of the unit. The unit is designed to be
mounted indoors in a window, through the wall in high-rise
buildings, or on the wall on the building exterior. See Fig. 2
for typical applications. Ductwork is not needed, but may be
added easily if required by the application. Airflow is pro-
vided by centrifugal fans with an adjustable belt drive to meet
varying static requirements. Units may also be matched with
other compressor and evaporator combinations. Contact your
local representative for more details.
Check space requirements, service clearances, floor strength,
location of piping, size of power supply, and location of duct-
work (if used) before installing. See Fig. 3 for unit dimen-
sions and Table 2 for unit operating weights.
INSTALLATION
Step 1 - Complete Pre-Installation Checks -
Examine unit for damage incurred during shipment. File claim
immediately with transit company if damage is found. Check
the shipment for completeness. Verify that the nameplate elec-
trical requirements match the available power supply.
Form 09BY-2SI
Pg 1
09BY006-024
5 to 20 Tons
9-96
Replaces: 09BY-1SI
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Table of Contents
Related Manuals for Carrier AIR-COOLED CONDENSER UNITS 09BY006-024
Summary of Contents for Carrier AIR-COOLED CONDENSER UNITS 09BY006-024
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Page 1: Table Of Contents
Controls and Rotation of Fans ... 13 Adjust Fan Speed ......13 SERVICE . - Page 2 Fig. 1 — 09BY Unit (008-014 Shown)
- Page 3 LEGEND Refrigerant Connection Field-Supplied Refrigerant Piping *Field-Supplied Floor Stand (Height to Match Wall Opening). 09BY TO REFRIGERANT PIPING COMPRESSOR/ EVAPORATOR UNIT 09BY IN REMOTE APPLICATION WITH DUCTWORK (Shown Suspended from Ceiling) 50BZ POWER CONNECTION FLOOR STAND* 09BY DIRECT CONNECTION TO 50BZ UNIT Fig.
- Page 4 09BY DIMENSIONS (English) DIMENSION (Ft-in.) (Ft-in.) (Ft-in.) 2-11 ⁄ 3- 6 ⁄ 3- 6 ⁄ 1- 7 ⁄ 1-11 ⁄ 1-11 ⁄ 4- 0 ⁄ 4- 8 5- 3 ⁄ 1-11 ⁄ 2- 3 ⁄ 2- 3 ⁄ 0-11 ⁄ 1- 2 1- 2 0- 6...
- Page 5 CORNER WEIGHTS (Lb) UNIT SIZE NOTES: 1. Operational clearances are 0 in. on all sides of the unit. 2. Service clearances are 0 in. (minimum) on the top, rear, and front of the unit. A minimum of 3 ft service clearance is required on the unit right side, and a 3 ft clearance is recommended on the left side (2 ft is the minimum).
- Page 6 -in. OD Enhanced Copper Tube, Aluminum Fin 4...14 5...14 5...14 6.33 8.75 10.12 ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ 24-V Control Fan Contactor Provided in Unit R-22 6/11 8.38/14.5 14.5 0.31/0.47 0.47 7200 9000 6000-7600 6700-9750 7500-11,000 11.0 × 11.0 12.4 ×...
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Page 7: Step 2 - Rig And Place Unit
Step 2 — Rig and Place Unit RIGGING — The 09BY units are mounted on skids. Leave the unit on the skid until it is in the final position. While on the skid, the unit can be rolled, dragged or forklifted; do not apply force to the unit. -
Page 8: Step 3 - Install Accessory Low-Ambient Kit Or
Provide tees plugged on one side for cleanouts. Leave clearance for servicing, and observe all lo- cal sanitary codes. Refer to Carrier System Design Manual for additional pip- ing details. Step 5 — Complete Refrigerant Piping GENERAL —... -
Page 9: Liquid Lift
LIQUID LIFT — Amount of liquid lift available before re- frigerant flashing occurs depends on amount of liquid sub- cooling in the system. All 09BY condensers have positive subcooling when ap- plied with optimum charge. With subcooling, it is possible to overcome an appreciable pressure drop and/or static head pressure (due to elevation of the liquid metering device above the condenser when condenser is below evaporator coil). -
Page 10: Check Valve
CHECK VALVE — When the 09BY condenser is installed with the condenser located above the compressor evapora- tor, it is recommended that a field-supplied check valve be installed on the hot gas discharge line. This prevents refrig- erant which condenses in the discharge line during the off cycle from draining back into the compressor. -
Page 11: Condenser Air Duct Insulation Step 7 − Insulate The Unit
460 v or 575 v operation. If the unit will be used on a 208 or 230 v system, rewire the condenser fan motor prior to unit start-up. The 575-v motor is connected to the proper voltage as shipped, and all connections are internal to the motor. -
Page 12: Main Power Wiring
Condenser operation on improper line voltage or exces- sive phase imbalance may be considered abuse and any re- sulting damage may not be covered by Carrier warranty. All wiring must be in accordance with local or NEC (National Electrical Code) regulations. Refer to Fig. 11 for combination field wiring. -
Page 13: Start-Up
If an airflow is not specified, use the nominal airflow from Table 2 and adjust the fan speed to compensate for actual job conditions. Use Table 5 to determine proper fan speed. If the unit trips on high pressure due to high condensing tem- perature, then it may be necessary to increase the fan speed and condenser airflow. - Page 14 9.14 LEGEND BHP — Brake Horsepower NOTES: Shaded areas indicate field supplied drive and or motor are required. 2. Nominal cfm is 600 cfm/ton. Table 5 — Condenser Fan Performance EXTERNAL STATIC PRESSURE (in. wg) 0.51 1085 0.80 1039 0.82 1197 1.14...
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Page 15: Service
TO CHANGE FAN WHEEL — If a fan wheel should fail, it may be replaced as follows: 1. Remove belts from fan pulley. 2. Loosen locking collars on the fan bearings and set screws on the fan wheels. 3. Remove the shaft through the access panel on either side of the unit. -
Page 16: Troubleshooting
TROUBLESHOOTING See Table 6 for problems and possible solutions. PROBLEM 1. Fan belts are slipping or broken. 2. Fan is not delivering adequate air for condenser. Unit is tripping on 3. Low-ambient damper is not functioning correctly high-pressure switch (if equipped). - Page 18 Copyright 1996 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 2 4 PC 111 Catalog No. 530-969 Printed in U.S.A. Form 09BY-2SI Pg 18 9-96...
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Page 19: Start-Up Checklist
HAS THE CIRCUIT PROTECTION BEEN SIZED AND INSTALLED PROPERLY? ARE THE POWER WIRES TO THE UNIT SIZED AND INSTALLED PROPERLY? HAVE DRAINAGE CONNECTIONS BEEN COMPLETED? HAVE FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENT? DO THE FAN BELTS HAVE PROPER TENSION? HAS CORRECT FAN ROTATION BEEN CONFIRMED? - Page 20 CIRCUIT A (L1/L2) CIRCUIT B (L1/L2) CIRCUIT C (L1/L2) NOTES: Copyright 1996 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 2 4 PC 111 Catalog No. 530-969 4a 4a Printed in U.S.A.