Installation, Start-Up, Adjustment and Maintenance Manual
38
5. ELECTRICAL CONNECTION
IN THE FOLLOWING SECTION PLEASE REFER TO "L" AS "L1" AND TO "N" AS "L2".
5.1 POWER SUPPLY AND PUMP WIRING FOR A SINGLE ACF60-00 UNIT
All wiring should be installed in accordance with the latest edition of the National Electrical Codes,
ANSI/NFPA No. 70, CSA Standard C22.1 when installed in Canada, and with any local codes.
The UNIT electrical system is wired for single-phase, 208-230 volt and 60Hz operation. The electrical control
box includes a 208 – 230 - 24 volt transformer to supply low voltage to the control system. The high voltage
line connections to be made at the time of installation consists of connecting 208-230 volt, 60 Hz to the high
voltage terminal board of the control panel. A fused disconnect switch should be installed in the 208-230 volt
supply line within sight of and not over 50 feet from the unit.
- An error in wiring installation could cause problems during the UNIT operation and could damage the
electrical components of the appliance.
- The unit must be electrically grounded in accordance with national requirements.
- The power supply line must not be used to turn the unit “ON” or “OFF”. The dedicated control switch in
the R-Y line is for this purpose.
- Disconnect the power supply lines only when assured that unit is completely shut off.
DO NOT OPERATE the unit unless the chilled water system is filled with water and antifreeze.
USE A 15 AMP TIME
LAG FUSE ON L WIRE.
L, N WIRING TO THE
TERMINAL BOARD MUST
BE DONE RESPECTING
THE CORRECT POLARITY
GROUND CABLE HAS TO BE
CONNECTED BY A SUITABLE EYELET
TO THE GROUND PIN INTO THE
ELECTRICAL BOX, AND FIXED TO IT
BY THE PROPER PRESET NUT.
Figure 15 – WIRING FOR A SINGLE ACF60-00 UNIT WITH PUMP ABSORBED CURRENT LESS THAN 4 AMP.
NOTE
WARNING
WARNING
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