CA
T NO.
XR30CX – XR70CX
Refrigeration Controllers
OVERVIEW
The product has .5” LED temperature display and up to 8 status Icons on the front
display. The unit shall have a 6 keypad interface, consisting of a Up, Down,
SET, DEF, Light and ON/OFF or ES Mode (Energy Savings) The control can
display in either °F or °C and have a range of -58°F to 230°F (°C)
MOUNTING
The product is panel mounted in a 29 x 71mm panel hole or wall mounted
in a C-Box 108 x 108 x 90mm enclosure.
SENSOR
The product shall have up to 2 NTC Thermistors (XR30CX) or up to 4 (XR70CX)
temperature probes, which can be extended up to 300ft. The Room probe
(controlling probe) is to be placed typically in the return–air, or discharge air,
and the Evaporator probe to be mounted in the coldest spot of the evaporator.
Optional third and fourth probes can be used for display or condenser.
POWER
The product shall be powered by 120Vac or 230Vac (+/-10% 50/60Hz).
INPUTS
The CX control shall have one Digital Input (open/closed circuit) that is typically
used with a magnetic door switch to indicate door openings.
OUTPUTS
The XR30CX has two relay outputs. Compressor (or solenoid valve) rated at
16FLA/96LRA plus a second relay (8A) for alarm, light or fan.
The XR70CX has four relay outputs. Compressor 16FLA/60LRA, Defrost 8A,
Fan 5A, plus a fourth 8A relay, that can be configured as: Alarm/Light/2nd
Comp/2nd Def/Anti-Sweat heater.
COMMUNICATIONS
The Pr
oduct has a TTL Serial por
t. A XJ485CX adaptor is required. The two
way communication pr
otocol is MOD-BUS-R
TU. The Contr
ol has a settable
serial address of 1-247. MOD-BUS–Comments, Registers and Hex Codes are
free and open (available on request.)
PROGRAMMING
The control is pre-programmed for Medium temp applications (XR30CX), and
Low Temp applications (XR70CX). There are 2 levels of parameters that are
password protected. The Keyboard can also be locked. A Hot Key flash memory
device can upload or download a program to the unit. The program shall remain
in internal memory without power.
WEISS INSTR
UMENTS,
INC., 905 WAVERLY AVE., HOLTSVILLE, NEW YORK 11742 • 631.207.1200 • FAX: 631.207.0900
•
www
.weissinstruments.com
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
WARRANTY
ONE YEAR
XR30CX
XR70CX
Dimensions in mm.
(20 paginas)
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