Start-Up - Conair EP2 series User Manual

Table 16 – PLC Controller Modbus RTU Parameters (continued)
Modbus Register Data Format
32008
32009
32010
32011
32012
32013
32014
32015
32016
32017
32018
32019
40001

Start-Up

Every unit is factory set to deliver chilled water in
accordance with the standard operating
specifications for that particular chiller. Due to
variables involved with different applications and
different installations, minor adjustments may be
required during the initial start-up to ensure proper
operation. Use a qualified refrigeration technician to
perform the start-up procedure in sequence. The
following serves as a checklist for the initial start-up
and for subsequent start-ups if the chiller is out of
service for a prolonged time.
WARNING: This equipment contains hazardous
voltages that can cause severe injury or death.
WARNING: This equipment contains refrigerant under
pressure. Accidental release of refrigerant under
pressure can cause personal injury and or property
damage.
WARNING: This equipment may contain fan blades or
other sharp edges. Make sure all fan guards and other
protective shields are securely in place.
WARNING: The exposed surfaces of motors, refrigerant
piping, and other fluid circuit components can be very
hot and can cause burns if touched with unprotected
hands.
Data Access Level
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
INTEGER
BOOL
Read Suction Temperature
Read Discharge Temperature
Read Suction Pressure
Read Discharge Pressure
Read Compressor 1 Anti-Cycle Time
Read Compressor 2 Anti-Cycle Time
Read Compressor 3 Anti-Cycle Time
Read Superheat
Read PLC Version
Read Electronic Expansion Valve Percent
Read Variable-Speed Drive Speed Feedback
Read Hot Gas Bypass Valve Percent
Write Set Point Temperature Setpoint (x 10, ie. 50.0° = 505)
28
Description
CAUTION: Disconnect and lock out incoming power
before installing, servicing, or maintaining the
equipment. Connecting power to the main terminal
block energizes the entire electric circuitry of the unit.
Electric power at the main disconnect should be shut
off before opening access panels for repair or
maintenance.
CAUTION: Wear eye protection when installing,
maintaining, or repairing the equipment to protect
against any sparks, debris, or fluid leaks.
CAUTION: Wear protective gloves when installing,
maintaining, or repairing the equipment to protect
against any sparks, debris, or fluid leaks.
CAUTION: The unit requires the main power to remain
connected during off-hours to energize the
compressor's crankcase heater. Disconnect main
power only when servicing the chiller. The crankcase
heater should remain on when the compressor is off to
ensure liquid refrigerant does not accumulate in the
compressor crankcase. Connect main power at least
24 hours prior to initial start-up.
CAUTION: Wire the unit ground in compliance with
local and national codes.