Integrated Circuit Systems

Machine Room Ventilation Control Panel






Each system comes with a Main Panel configured for each customer specific engineering needs. The programmable logic controller can be specified as Allen-Bradley, Wago, Siemens, or other manufacturers. The system will utilize a 10-inch or larger touchscreen as an operator interface for user interaction with the system. The system can be configured for multiple ammonia detectors located in the machine room. A configuration will allow personnel to span the ammonia detectors range from the operator interface. Each ammonia detector power and analog signal is monitored to alert personnel of an issues with ammonia detectors. The panel will have a shunt trip relay that can be configured to shutdown multiple compressors and other circuits based on engineering needs. Each panel has a configurable PPM Relay that can be set to trigger at any ppm concentration sensed for monitoring to other control or security systems. There is contact that can be monitored to alert personnel in case of a power failure of the system. Each system will have two remote mounted control stations for ventilation control. A tailored PPM panel can be installed to allow for remote monitoring of ammonia concertation and ventilation control at a machine room door. Motion Detectors for each machine room entrance door to allow for occupied ventilation to be turned on. Engine Room Temperature sensor to allow for temperature control of machine room.

PPM Simulate:
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IIAR2 Compliant Design

This UL listed panel is designed to meet the specifications set forth in the ANSI/IIAR-2 Standard for Safe Design of Closed-Circuit Ammonia Refrigeration Systems. Focusing the design of the panel on Sections 6.12 through 6.14 we incorporate emergency ventilation, occupied ventilation, temperature control, ammonia alarm level indication, and machine room de-energization. Per Section 6.13.2.3 the panel utilizes a latching relay that will latch the emergency ventilation on until the system is manually reset by a switch located in the machine room. Per Section 6.14.1 the panel turns on the occupied ventilation only when motion is detected in the machine room. A reset switch located outside the machine room will de-activate the occupied ventilation. Per Section 6.13 the panel incorporates ammonia detection for concentrations equal to or exceeding 25ppm, 150ppm, and the upper detection limit of the detector in the machine room.



Audio and Visual Indicators

This fully programmable display allows the operator to view the ammonia concentration set points defined by ANSI/IIAR-2. Per Section 6.13, the three ammonia concertation levels are 25ppm, 150ppm, and the upper detection limit of the highest detector range or 40,000 PPM. Once these set points have been reached, the system will notify by audible and visual indicators. Each machine room will be fitted to have stack lights at each entrance and exit as well as the maintenance room. This allows personnel to be notified of any detection. Each ammonia detector may be placed into a lockout or maintenance mode with built-in security access on the operator interface. Each stack light comes with four levels of visual indication and an audible horn.

Interactive Display

The operator interface will come with preloaded graphics of your machine room showing what exhaust fans are running, the ammonia detection status (i.e. faulted or running), the ammonia concentration, the machine room differential pressure, outside air temperature and humidity, and machine room temperature. Each sensor will allow the operator to define set points for when they would like to be notified of a status in their system.

Configurable Options

Check Out Our Tailored Parts-Per-Million (PPM) Panel

This custom PPM panel can be directly connected to the machine room exhaust ventilation panel, giving the operator even more insight and control. ICS recommends this panel to be located at the main entry to the machine room. It will display the ammonia concentration level is parts-per-million, a remote emergency ventilation control switch and an emergency stop break glass switch.

The PPM Panel makes the controls readily available for the persons entering the machine room. Pick up a PPM brochure for more information, or contact us directly.

PPM Panel





CONTACT


Michigan
info@icsnh3.com


Telephone: 616-263-9501
Facsimile: 616-263-9503

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