22
Hillphoenix Refrigeration Systems
CO
2
One Condensing Unit
Section 4: T
ranspor
t and Installation
•
Management of the low-temperature system (if equipped)
Wiring of the Various System Components
The equipment components must be wired properly prior to powering up the system:
• Supervision network (if equipped)
• Other optional components
ATTENTION: The sizing and laying of the cables that connect the equipment to all its external
components must be carried out in compliance with local codes and ordinances.
ATTENTION: When laying cables, where possible, it is recommended to avoid a common path
between the cables used to transport energy for powering the equipment, or in general for
powering motors (i.e., fans and solenoid valves) and those dedicated to the transmission of signals
(such as network cables, or 0/10V). Failure to comply with this provision could jeopardize proper
functionality of the system due to major disruption of the power supply.
Supervision Network
ATTENTION: Where possible, it is recommended to keep the equipment’s supervision network
separate from that of the supermarket control devices (i.e., desks, cells, and cabinets). This is to
avoid conflicts between devices with the same network addresses.
For the wiring of the RS485 serial line on which the supervision network will sit, the following are recommended:
•
Use BELDEN 8762 AWG20 type cable
•
Minimize the length of the serial line (RS485 max. 3,280 feet)
Do not create bifurcations of the line or star connections, as shown:
Summary of Contents for CO2One
Page 1: ...CO2 One CO2 Condensing Unit Manual DECEMBER 2021 ...
Page 8: ...VII ...
