Carrier 09BY006-024 Electrical Data, Unit Voltage Supply Voltage FAN Power Supply, Fla Mca, Nec

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Fig. 10 Ð Placement of Duct Flanges on Units

09BY016 and 09BY024

3.A high-density ®berglass (2 lb minimum density) or semi- rigid foamed insulation such as Styrofoam™ will be re- quired inside the ducts to prevent air erosion. The insu- lation must be ®rmly secured in the discharge duct near the blower discharge to withstand the high air velocity.

Step 7 Ð Insulate the Unit Ð The 09BY units are not insulated. If the unit will be operated during cold weather and the equipment room is not at outdoor temperatures, the unit cabinet should be insulated to prevent condensation. In- sulate the unit in the same manner as the ductwork insula- tion described in Condenser Air Duct Insulation section on page 10.

Step 8 Ð Complete Electrical Connections

IMPORTANT: Units may be used on 208, 230, 460, or 575 v, 3-phase systems. As shipped from the fac- tory, units are wired for 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.

To rewire the unit, disconnect and reconnect the wires at the motor junction box as shown on the connection diagram on the unit motor cover or in the unit wiring book.

GENERAL Ð Verify that nameplate electrical requirements match available power supply. Voltage at condenser must be within the minimum and maximum shown in Table 4 and phases must be balanced within 2%. Contact local power com- pany for line voltage corrections. Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percentage of volt- age imbalance:

% Voltage Imbalance

= 100 x

max voltage deviation from average voltage

average voltage

 

Example: Supply voltage is 240-3-60.

AB = 243 v

BC = 236 v

AC = 238 v

243 + 236 + 238

Average Voltage =

3

717

=

3

= 239 v

Table 4 Ð Electrical Data

UNIT

VOLTAGE

SUPPLY VOLTAGE*

 

FAN

POWER SUPPLY

09BY

(3 Ph, 60 Hz)

Min

Max

FLA

 

Hp

MCA

MOCP

 

208/230

187

254

7.5

 

 

9.4

15

006

460

414

508

3.4

 

2

4.3

15

 

575

518

632

2.7

 

 

3.4

15

 

208/230

187

254

10.5

 

 

13.6

20

008

460

414

508

4.8

 

3

6.0

15

 

575

518

632

3.9

 

 

4.9

15

 

208/230

187

254

10.5

 

 

13.6

20

012

460

414

508

4.8

 

3

6.0

15

 

575

518

632

3.9

 

 

4.9

15

 

208/230

187

254

16.7

 

 

20.9

35

014

460

414

508

7.6

 

5

9.5

15

 

575

518

632

6.1

 

 

7.6

15

 

208/230

187

254

16.7

 

 

20.9

35

016

460

414

508

7.6

 

5

9.5

15

 

575

518

632

6.1

 

 

7.6

15

 

208/230

187

254

30.8

 

 

38.5

60

024

460

414

508

14.0

 

10

17.5

30

 

575

518

632

11.0

 

 

13.8

20

 

LEGEND

FLA

Ð Full Load Amps

MCA

Ð Minimum Circuit Amps. Used for wire sizing.

 

(Complies with NEC Section 430-24.)

MOCP Ð Maximum Overcurrent Protection

NEC

Ð National Electrical Code

*Units are suitable for use on electrical systems where voltage sup- plied to the unit terminals is within listed minimum and maximum limits.

NOTES:

1.Maximum allowable phase imbalance: Voltage ± 2%; Amps ± 10%.

2.Maximum incoming wire size for power circuit is 2/0 max.

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Contents General ContentsSafety Considerations Installation09BY Unit 008-014 Shown Mounting Applications 006 008 012 014 016,024 09BY Dimensions EnglishDimension 006 008 012 014 016,024 Ft-inUnit APPROX. Shaft Length Unit SizePhysical Data Condenser Unit ApplicationRig and Place Unit Threaded Rod Installed in BracketComplete Refrigerant Piping Install Rain Drain See FigHot Gas Liquid Qty Length of Pipe UnitHot Gas Liquid Condenser Ductwork Details DimensionsFLA Unit Voltage Supply Voltage FAN Power SupplyElectrical Data FLA MCAGND EquipFMC START-UP ServiceCleaning Condenser Coils Condenser Fan AdjustmentExternal Static Pressure in. wg 09BY Cfm Rpm Bhp Condenser Fan PerformanceUnit Airflow Maintenance Problem Potential Cause Solution TroubleshootingTroubleshooting Page Copyright 1996 Carrier Corporation Pre-Start-Up START-UP ChecklistPreliminary Information Check Voltage Imbalance Start-Up

09BY006-024 specifications

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