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Check voltage imbalance – Bryant 569J User Manual

Page 56

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56

CHECK VOLTAGE IMBALANCE

LINE-TO-LINE VOLTS:

AB

V

AC

V

BC

V

(AB + AC + BC)/3 = AVERAGE VOLTAGE =

V

MAXIMUM DEVIATION FROM AVERAGE VOLTAGE =

V

VOLTAGE IMBALANCE = 100 X (MAX DEVIATION)/(AVERAGE VOLTAGE) =

IF OVER 2% VOLTAGE IMBALANCE, DO NOT ATTEMPT TO START SYSTEM!

CALL LOCAL POWER COMPANY FOR ASSISTANCE.

CHECK INDOOR UNIT FAN SPEED AND RECORD.

CHECK OUTDOOR UNIT FAN SPEED AND RECORD.

AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS:

SUCTION PRESSURE CIR 1:

CIR 2:

SUCTION LINE TEMP CIR 1:

CIR 2:

LIQUID PRESSURE

CIR 1:

CIR 2:

LIQUID LINE TEMP

CIR 1:

CIR 2:

ENTERING OUTDOOR UNIT AIR TEMP

LEAVING OUTDOOR UNIT AIR TEMP

INDOOR UNIT ENTERING-AIR DB (dry bulb) TEMP

INDOOR UNIT ENTERING-AIR WB (wet bulb) TEMP

INDOOR UNIT LEAVING-AIR DB TEMP

INDOOR UNIT LEAVING-AIR WB TEMP

COMPRESSOR 1 AMPS (L1/L2/L3)

/

/

COMPRESSOR 2 AMPS (L1/L2/L3)

/

/

NOTES:

2011 Bryant Heating and Cooling Systems. D 7310 W. Morris St. D Indianapolis, IN 46231

Printed in U.S.A.

Edition Date: 04/11

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Catalog No: II569J---10

Replaces: II569J--- 08

569J