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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 40RU-07SI
Printed in U.S.A.
Form 40RU-7SI Rev B
Pg CL-2
7-22
Replaces: 40RU-05SI
© 2022 Carrier
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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.
III. START– UP
CHECK INDOOR FAN MOTOR SPEED AND RECORD.
AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS:
COMP A1 COMP B1
OIL PRESSURE ______________ ____________
SUCTION PRESSURE ______________ ____________
SUCTION LINE TEMP ______________ ____________
DISCHARGE PRESSURE ______________ ____________
DISCHARGE LINE TEMP ______________ ____________
ENTERING OUTDOOR UNIT AIR TEMP ______________ ____________
LEAVING OUTDOOR UNIT AIR TEMP ______________ ____________
INDOOR UNIT ENTERING AIR DB TEMP ______________ ____________
INDOOR UNIT ENTERING AIR WB TEMP ______________ ____________
INDOOR UNIT LEAVING AIR DB TEMP ______________ ____________
INDOOR UNIT LEAVING AIR WB TEMP ______________ ____________
OUTDOOR UNIT ENTERING WATER TEMP
(40RUS ONLY) ______________ _____________
OUTDOOR UNIT LEAVING WATER TEMP
(40RUS ONLY) _______________ ______________
INDOOR UNIT ENTERING WATER TEMP
(40RUS ONLY) _______________ ______________
INDOOR UNIT LEAVING WATER TEMP
(40RUS ONLY) ________________ ______________
COMPRESSOR AMPS (L1/L2/L3) ____/____/____ ____/____/____
CHECK THE COMPRESSOR OIL LEVEL SIGHT GLASSES, ARE THE SIGHT GLASSES SHOWING
OIL LEVEL AT 1/8 to 1/3 FULL? (Y/N)_______________
NOTES:
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Summary of Contents for 40RU 25
Page 3: ...3 Fig 1 Dimensions Size 25...
Page 4: ...4 Fig 1 Dimensions Size 25 cont...
Page 5: ...5 Fig 2 Dimensions Sizes 28 and 30...
Page 6: ...6 Fig 2 Dimensions Sizes 28 and 30 cont...
Page 37: ......