Mounting The Unit; Sample System Installation; Warning - MSA Chillgard RT Instruction Manual

8. DO NOT:
• back-pressure the exhaust line or
• connect it to a vacuum source or
• install a flow meter in the exhaust line.
ALWAYS :
connect an exhaust line that is vented to a safe area or an
outside atmosphere.

Mounting the Unit

The instrument has four mounting lugs (FIGURE 2-1). Securely mount
the unit to a wall or support, using appropriate hardware.
Do not mount the unit directly to a chiller; the vibration may
affect the operation of the monitor, resulting in incorrect
readings.

Sample System Installation

1. Remove all caps on the sample inlets and exhaust of the Chillgard
RT Monitor (FIGURE 2-3).
Failure to remove any caps from the unit gas inlet or exhaust
fittings prevents gas sampling and may cause an undetected
toxic and hazardous gas build-up and a flow trouble
indication.
2. Route the 1/4" (6.4 mm) OD tubing into the areas to be monitored.
NOTE: For Refrigerant Units:
1/4" (6.4 mm) OD rigid copper tubing with compression
type fittings is recommended for most refrigerants.
Soldered connections on the sample line(s) should be
avoided due to the possibility of the monitor being
sensitive to the solvents in the soldering flux paste.
For Ammonia Units:
It is recommended that stainless steel tubing and filters be
used. Do not use copper or brass for tubing or connection
components as they are not compatible with ammonia.
3. After the line(s) are installed and BEFORE they are connected to
the monitor:
2-6

WARNING

WARNING