Case Electronic Controller - Hussmann RL2W Installation & Operation Manual

P/N 3053328_C

CASE ELECTRONIC CONTROLLER

IMPORTANT!
Disconnect electrical power before beginning any service
on electrical or electronic equipment. DO NOT work
around live electrical circuits. Make sure the machine is
switched off before working on electrical connections.
All operations must be carried out by qualified personnel.
Check that the supply voltage is correct before connecting
devices. Never use power that differs from that indicated
in the manual. Power supplies other than those specified
can seriously damage the refrigeration system or other
components and parts.
Separate the cables of the analogue inputs from those of
the digital input and the serial line cables from the power
cables (resistive as well as inductive), in order to prevent
malfunction due to electromagnetic interference.
All system components should be obtained from
Hussmann to ensure system compatibility and reliability.
Make connections as short as possible, and do not wind
them around electrically connected parts. When connecting
loads, follow connection diagrams carefully.
Never connect the secondary of the supply transformer
to the earth.
The low voltage connections must have reinforced
insulation.
When using the digital inputs of the CoreLink
Case Controller use another transformer in order to
prevent the digital inputs from malfunctioning or being
damaged.
To avoid causing static discharge, do not touch the
electronic components on the boards.
DO NOT use the same secondary of the controllers
power. Doing so can result in damage to case controller.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
! CAUTION
! WARNING
NOTICE
DO NOT exceed the maximum current capacity of the
onboard controller relays. Always verify the capacity
of the output used.
IMPORTANT
DO NOT plug in accessory devices that are not
approved by Hussmann.
DO NOT exceed the maximum current capacity of the
STOP
onboard controller relays.
Always verify the capacity of the output used.
DANGER
!
DO NOT plug in accessory devices that are not
approved by Hussmann.
DANGER
!
GND is Common(-), not earth ground. Do not earth
ground this device.
NOTE
Permitted Use
→ Food Display Merchandisers
→ Coolers
→ Self-Contained
→ Remote Cases
Improper Use
→ HVAC
→ Unspecified Installation
→ Deviation from established Legislation and
Hussmann is not responsible for misuse or device.
Hussmann is not held responsible for deviation from
this manual and its intended use. If you have any
questions, contact your Hussmann representative for
details.
In case of failure or faulty operation, send the
controller back to the distributor with a detailed
description of the fault.
The controller should not be used for purposes different
from those described in this manual. It cannot be used
as a safety device.
ATTENTION
INSTALLER
STOP
NOTE
Standards
2-3
Reach-In