1 an eye that never blinks. 2 refrigerant monitoring checking for excess moisture in the...
TRANSCRIPT
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an eye that never blinks
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Refrigerant Monitoring
Checking for excess moisture in the refrigerant
Checking for low charge or loss of refrigerant
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Moisture
Excess moisture can lead toacid formation which eats away at
refrigeration equipment.icing which can cause restrictions in valves
and ports (reducing efficiency).
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Low or Lost Refrigerant
Low refrigerant levels can lead toextensive equipment failure to labor-
intensive repairs and replacement of expensive system components.
product spoilage and loss in cooler/freezer systems.
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Why Monitor Refrigerant?
Consider the economic incentives.
Consider the environmental impact (for its own sake and for the regulations).Consider our professional responsibility to protect the facility and its occupants.
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Typical Monitoring
Direct—Probes and float switches in level columns and tanks, with connected control panels, measure refrigerant levels directly.
Indirect—Gas monitors and connected control panels measure the atmospheric result of loss.
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Typical Monitoring
Both of these methods are costly, particularly in small box operations (restaurants, convenience stores, etc.).
In the case of indirect measurements, serious loss occurs before alarms are made and repairs initiated.
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Site Glass
Simple Economical Informative
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Site Glass
But, it requires a visual inspection
Typically only inspected AFTER there has been a failure in the system
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KMC Innovation
A 24/7 eye on refrigeration site glass (an eye that never blinks).
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What is FirstWatch?
A patented, optical device designed for use with the Sporlan See-All® site glass.
Like the site glass itself, a simple, economical, and informative service tool.
A non-invasive and accurate measuring method for both moisture and low refrigerant.
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FirstWatch—Up-close
FirstWatchsite glass monitor
Refrigeration Alarm Monitor
(optional)
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FirstWatch Applications
Chiller/mechanical rooms
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FirstWatch Applications
Supermarket/Convenience store display cases and freezers
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FirstWatch Applications
Roof-top air conditioning units
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Key Features—Simplicity
Ease-of-installationMount (snap on)
Intuitive Operation
Wire (4)•24 VDC Power•Ground•Moisture (0-5 VDC proportional)
•Flash Gas (0-5 VDC proportional)
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Key Features—Flexibility
Connect FirstWatch to any conventional Building Automation System.
Or, for standalone applications, add the optional RAM (featuring audible and visual alarming).
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RAM FlexibilityBaseline setAlarm level setDelaysMuting of audible
alarms
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Key Features—Cost Effectiveness
List Price of FirstWatch is only $499.
List price for the optional RAM is just $250.
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Key Features—Design
This patented design achieved compliance with the Environmental Testing Verification, an EPA program.
Polymer housing is water and dust resistant and flame-retardant.
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Key Features—Accuracy
FirstWatch makes its reporting (to BAS or RAM) through the proportional amplitude of the respective 5 volt signals.
In the case of flash gas, indicative of low charge or refrigerant loss, FirstWatch can ignore normal transient and momentary flash.
In addition to refrigerant loss, FirstWatch can detect the flash gas that can occur due to dirty coils or other system malfunctions.
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How FirstWatch Works
FLSH
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How FirstWatch Works
H2O
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Other Benefits
Offers reporting and trending (when tied to BAS)
Can help evaluate the effectiveness of service personnelWas the system charged properly?Was moisture allowed into the system?Was the system evacuated?Was the drier replaced?Were leaks properly repaired?
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Considerations
First Watch is dependent upon the proper installation of the site glass.
In addition, the site glass should be clean.
When used with certain chiller types, FirstWatch should be tied to a BAS to compensate for start-up and cycle turbulence.
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Summary
Non-invasiveContinuous monitoring (never blinks)Early detectionHelps prevent product loss or
equipment failure.Simple, flexible, cost-effective, &
accurate
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