Chapter 2
Installation and Set-up
Unpacking the System
To unpack the Chillgard LS Refrigerant Monitor:
• Carefully remove the unit from its shipping container(s) to prevent
damage to sensitive electrical and gas sensing components.
• Search through packing material and inside of the containers to
prevent inadvertently discarding usable or valuable parts.
• Remove the plastic screws holding the cover to the enclosure.
• Remove the front cover from the Chillgard LS Refrigerant Monitor
to expose the electrical printed circuit board.
Initial Inspection
With the front cover open, carefully inspect the components and
assemblies inside the enclosure. If damage or shortage is noted,
promptly make the proper claim with the carrier.
Sensor Location
Pumped Units
Pumped units use an internal sample pump to pull refrigerant gas from
a remote location(s). The visual indication for the unit is located on the
front of the unit. Other outputs are available on the device which can be
used to provide indication of gas concentration, alarm status, and
instrument status.
Refrigerants concentrate near the floor. In typical mechanical equipment
room applications, sampling 12-18 inches above the floor is sufficient
for early warning and to provide adequate protection for someone
working close to the floor. If it is expected that an occupant's breathing
zone may be less than 12-18 inches off the floor, locate the sampling
point accordingly.
NOTE: Select sampling locations that result in the shortest possible line
length in order to reduce transport time.
Consider the following guidelines when selecting the location for the
sampling point(s).
2-1
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