Use Instructions And Limitations; Use For; Do Not Use For; Features - Macurco RD-6 User Instructions

Macurco RD-xx User Manual

2 Use Instructions and Limitations

Each person using this equipment must read and understand the information in this user manual
before use. Use of this equipment by untrained or unqualified persons or use that is not in
accordance with this user manual, may adversely affect product performance.

2.1 Use For

The Macurco RD-xx is a dual relay Refrigerant (REF) detector, controller, and transducer. The RD-xx has selectable 4-20 mA
output, buzzer and digital display options. The RD-xx has a long-life solid-state sensor (expected lifespan of 7+ years). The RD-xx
is a low-level meter capable of displaying from 0-1,000 ppm of refrigerant gas. It is an electronic detection system used to
measure the concentration of refrigerant gas and provide feedback and automatic exhaust fan control to help reduce
refrigerant gas concentrations in industrial refrigeration, cold storage, warehouses, hockey rinks or other commercial
applications. The RD-xx is capable of detecting several refrigerants including R-22, R-134A, R-404A, R-407C and R-410A. The RD-
xx is factory calibrated and 100% tested for proper operation.
Refrigerants are colorless and nearly odorless liquids or gases divided into two groups according to toxicity and flammability.
See ANSI/ASHRAE Standard 34-2007 - Designation and Safety Classification of Refrigerants for details. Always review the
refrigerant MSDS and safety classifications before use. RD-xx can be used stand alone, with the Macurco Detection and
Ventilation Control Panel, other 12 VAC or 24 VDC fire/security panels or building automation systems.
Use only for monitoring the gas which the sensor and monitor is designed to detect. Failure to
do so may result in exposures to gases not detectable and cause serious injury or death. For
proper use, see supervisor or user manual, or contact Technical Support at 1-844-325-3050.

2.2 Do NOT use for

The RD-xx is not intended for use in hazardous locations. Do not mount the RD-xx where the normal ambient temperature is
below 0°F or exceeds 125°F (below -18°C or above 52°C). The RD-xx mounts on a 4x4 electrical box supplied by the contractor.
Do not install the RD-xx inside another box unless it has good air flow through it.
This equipment may not function effectively below 0°F or above 125°F (-18°C or above 52°C).
Using the detector outside of this temperature range may adversely affect product performance.

2.3 Features

• ETL Listed to UL 61010-1 and CSA C22.2 No 61010-1
• Low level meter capable of displaying from 0-1,000 ppm refrigerant gas
Selectable fan and alarm relay activation
•
5 A SPDT fan relay controls starters of exhaust fans
•
• 0.5 A N.O. or N.C. alarm relay connects to warning devices or control panels
• 4-20 mA Current Loop
RD-xx mounts on a standard 4x4 electrical box and becomes cover for the box
•
• Supervised system: any internal detector problem will cause the fan & alarm relay to activate
• Calibration kit is available. One screw allows access for calibration or gas test
REV – 1.0
WARNING
WARNING
WARNING
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