CyberOne EC DX IOM Manual
2.8
System Charging Procedures
2.8.1
Water/Glycol Systems
All self-contained water/glycol cooled units (units that
require no refrigerant field piping) are factory charged with
refrigerant. No field refrigerant charging is required. The
following precautions must be observed when installing and
filling the water/glycol loop:
The piping system must be cleaned prior to
adding water/glycol to the system.
Glycol must be mixed with water before it is
added to the system. All air must be bled from
the piping system. Use only water/glycol solu-
tion with inhibitors for corrosion protection.
Figure 15. Interconnecting Field Wiring Glycol Systems
21
COS-024/060-G-U
SHOWN FOR REFERENCE
NOTES:
1. PHANTOM WIRES (
) NOT APPLICABLE FOR SINGLE PHASE POWER SUPPLIES.
2. NUMBER OF CONDUCTORS VARY DEPENDING ON NUMBER OF FAN MOTORS.
3. OPTIONAL REMOTE MOUNTED DEVICES.
MAIN POWER SUPPLY
208-460V/1PH-3PH/60Hz
INTERCONNECTING FIELD WIRING
(TO BE INSTALLED IN ACCORDANCE
WITH NFPA 70, N.E.C.)
SEE NOTE 1
PUMP PACKAGE
(GLYCOL UNITS ONLY)
L1
L2
L3
ELECTRIC
BOX
24VAC
DRYCOOLER
INTERCONNECTING FIELD WIRING
(TO BE INSTALLED IN ACCORDANCE
WITH NFPA 70, N.E.C.)
SEE NOTES 1 & 2
L1
L2
L3
MAIN POWER SUPPLY
208-460V/1PH-3PH/60Hz
SEE NOTE 3
REMOTE TEMPERATURE/
HUMIDITY SENSOR
E
²
CONTROLLER DISPLAY
E
² DISPLAY PLUGS DIRECTLY INTO THE
CONTROLLER INSIDE THE ELECTRIC BOX
3 CONDUCTOR
SHIELDED CABLE
6 CNDCT. PHONE TYPE
NON-SHIELDED CABLE
