Carrier 17/19EX User Manual
Page 427
INSPECT WIRING AND RECORD ELECTRICAL DATA:
RATINGS:
Motor Voltage
Motor(s) Amps
Oil Pump Voltage
Starter Amps
Line Voltages:
Motor
Oil Pump
Controls/Oil Heater
STARTER CHECKOUT:
Check continuity T1 to T1, etc. (Motor to starter, disconnect motor leads T4, T5, T6.) Do not megohm test solid-state starters,
disconnect leads to motor and megger the leads.
MEGGER MOTOR
‘‘PHASE TO PHASE’’
‘‘PHASE TO GROUND’’
T1-T2
T1-T3
T2-T3
T1-G
T2-G
T3-G
10-Second Readings:
60-Second Readings:
Polarization Ratio:
STARTER:
Electro-Mechanical
Ⅺ
Solid-State
Ⅺ
Motor Load Current Transformer Ratio
:
Signal Resistor Size
Ohms
Transition Timer Time
Seconds
Check Magnetic Overloads
Add Dash Pot Oil
Yes
Ⅺ
No
Ⅺ
Solid-State Overloads
Yes
Ⅺ
No
Ⅺ
Solid State Starter:
Torque Setting
O’Clock
Ramp Setting
Seconds
OPEN-DRIVE MOTOR BEARINGS: Added Oil to Proper Level
Ⅺ
Yes
CONTROLS: SAFETY, OPERATING, ETC.
Perform Controls Test (Yes/No)
PIC CAUTION
COMPRESSOR MOTOR AND CONTROL PANEL MUST BE PROPERLY AND INDIVIDUALLY CON-
NECTED BACK TO THE EARTH GROUND IN THE STARTER. (IN ACCORDANCE WITH BULLETIN
C-8912).
Yes
RUN MACHINE:
Do these safeties shut down machine?
Condenser Water Flow Switch
Yes
Ⅺ
No
Ⅺ
Chilled Water Flow Switch
Yes
Ⅺ
No
Ⅺ
Pump Interlocks
Yes
Ⅺ
No
Ⅺ
INITIAL START:
Line Up All Valves in Accordance With Instruction Manual:
Start Water Pumps and Establish Water Flow
Oil Level OK and Oil Temperature OK
Check Oil Pump Rotation-Pressure
Check Compressor Motor Rotation (Motor End Sight Glass) and Record:
Clockwise
Restart Compressor, Bring Up To Speed. Shut Down. Any Abnormal Coastdown Noise?
Yes*
Ⅺ
No
Ⅺ
*If yes determine cause.
START MACHINE AND OPERATE. COMPLETE THE FOLLOWING:
A: Trim Charge and Record Under Charge Refrigerant Section on page 57.
B: Complete Any Remaining Control Calibration and Record Under Controls Section (pages 12-45).
C: Take At Least 2 Sets of Operational Log Readings and Record.
E: After Machine Has Been Successfully Run and Set Up, Shut Down and Mark Shutdown Oil and Refrigerant Levels.
F: Give Operating Instructions to Owner’s Operating Personnel.
Hours Given:
Hours
G: Perform Hot Alignment (Open Drive Machines Only)
SIGNATURES:
DATE
CARRIER
CUSTOMER REPRESENTATIVE
TECHNICIAN
DATE
CL-2