CyberOne EC DX IOM Manual
2.7.4.2
Remote Condensing Unit (AHU Models)
Systems equipped with a remote condensing unit require field
control wiring between the A/C system and the condensing
unit (see Figure 14). The number of conductors required
between the two systems varies based upon the control
options provided. Refer to the electrical drawing supplied with
your unit to determine the exact number of field wires needed
and appropriate wire terminations required specifically for
your system.
2.7.5
Glycol Systems
(G Models)
Systems equipped with a glycol-cooled system/pump
package require field wiring between the glycol unit and
pump package (see Figure 15). The installer must wire two
control conductors from the terminal board within the glycol
A/C unit, to the pump package electrical box. Refer to the
electrical drawing supplied with your unit for the number of
field wires needed and appropriate wire terminations required
specifically for your system.
Figure 14. Interconnecting Field Wiring Remote Condensing Unit
20
COS-096/120-D-AHU-D
SHOWN FOR REFERENCE
NOTES:
1. PHANTOM WIRES (
) NOT APPLICABLE FOR SINGLE PHASE POWER SUPPLIES.
2. NUMBER OF CONDUCTORS VARY DEPENDING UPON OPTIONS PROVIDED.
3. OPTIONAL REMOTE MOUNTED DEVICES.
INTERCONNECTING FIELD WIRING
(TO BE INSTALLED IN ACCORDANCE
WITH NFPA 70, N.E.C.)
SEE NOTE 1
MAIN POWER SUPPLY
208-460V/-3PH/60Hz
INTERCONNECTING FIELD WIRING
(TO BE INSTALLED IN ACCORDANCE
WITH NFPA 70, N.E.C.)
SEE NOTES 1 & 2
L1
L2
L3
REMOTE CONDENSING UNIT
L3
L2
L1
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
