MSA Chillgard LS - Wiring Connections; Opening the Unit; Wiring; Caution

Wiring Connections
Opening the Unit
See Appendix A, "Installation Outline Drawings" for wire entry hole
locations.
Do not open the cover unless the monitor is protected from splashing,
spraying, or dripping water; otherwise, damage to the internal
components may result.
Wiring
The Chillgard LS Refrigerant Monitor is factory-wired with either a
universal power supply for 110/220 VAC operation or no power supply
for 24 V AC/DC operation. Refer to FIGURE 1-1 to determine power
requirement for the unit.
The following steps outline the procedure for connecting the wiring:
1. Determine the power supply for your Chillgard LS Refrigerant
Monitor (FIGURE 1-1).
If unsure of the power voltage available, contact your facility engineer or
safety officer. Instrument damage may occur if incorrect power voltage is
applied to the instrument.
NOTE: External overcurrent shall be included in the building instal-
lation, shall be in close proximity to the equipment and
within easy reach of the operator, and shall be marked as
the disconnecting device for the equipment.
All power wiring is connected to the terminal block (FIGURE 2-2
and FIGURE 2-3).
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CAUTION
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CAUTION
2-6