Painted welded structural steel frame Oil System:

• Coalescent oil separator

Copeland Discus Compressors: (With following mounted)

• Sealed oil filter
• Suction and discharge service valves
• Oil pressure reducing valve
• Oil regulator
• Discharge line check valve
• Oil Regulator adapter. ( 4D & 6D compressors)
• Discharge vibration eliminator Electrical:
• Crankcase heater
• ETL-508A listed control panel
• Encapsulated fixed high-pressure control
• Definite purpose contactors
• Head cooling fan (low temp. only)
• Compressor circuit breakers
• Demand cooling for R22 low temp. applications
• Phase monitor with alarm light
• Discharge muffler plate
• Fused control circuit transformer
• Rubber vibration mounts
• Control circuit, circuit breaker
• Independent switches and lights per defrost circuits
• Independent switches and lights per compressor circuits

Liquid Assembly:

• Liquid level alarm light
• Horizontal receiver with liquid level indicator
• One low-pressure switch per suction group
• Dual pressure relief valve assembly
• Solid state optical low-level alarm Controls:
• Replaceable core filter drier and sight glass
• Einstein Microprocessor w/phone modem & software
• Temperature Sensors shipped loose for field installation

Suction Assembly;

• One room sensor per evaporator
• Brass shell replaceable core suction filter per compressor
• One termination sensor per evaporator (positive defrost)
• Suction accumulator (insulated) per compressor
• Adjustable head pressure control valves.
• Split condenser valve(s) mounted on the rack
• Hot gas bypass per suction group

RACK OPTIONS

Micro Processor Controls: Controls:

• Controls up to 15 compressors/unloaders in three suction groups.
• Low-pressure switch per compressor.
• Controls up to 12 pairs of fans for head pressure control.
• Mechanical defrost timer.(gang timer)
• Options include Oil pressure transducers, Power monitor,
• Mechanical alarm.
  remote communications, Room Temp. control.
• EPR valves and Suction stop EPR valves.
• Alarm functions: Refrigerant level, low/high suction, and discharge
• Liquid line solenoid valves mounted on the rack
  pressures, oil failure, refrigerant leak detection.
• Adjustable head pressure control valves.
• Split condenser valve kit.
  Compressors:
• Scroll, Open drive, other manufacturers of compressors.
• Eight compressors maximum.
  Defrost circuits: (Please specify quantity, net capacity and defrost type for each circuit and suction group)
• Electric: Includes both liquid and suction isolation ball valves, liquid and suction solenoids as well as fan and heater contactors
• Hot Gas: Includes liquid, suction and hot gas isolation ball valves, and liquid, suction and hot gas solenoids as well as fan contactors
• Priority One reverse cycle individual circuit hot gas defrost.
  The Priority One hot gas defrost design consists of using the suction line as a dedicated hot gas supply line and the liquid line as a dedicated condesate or hot gas return line during the defrost cycle. Hot gas enters the evaporator through the drain pan loop, then through suction header and flows in a reverse cycle through the evaporator, exiting through a side port on the distributor and through the TXV & LLSV bypass line before entering the liquid line. Termination is accomplished by a field installed temperature sensor located on the TXV & LLSV bypass line at the evaporator.
• Four Pipe Soft Gas defrost
  The four pipes soft gas defrost design consists of supplying hot gas through a dedicated common hot gas supply line and returning condensate and/or hot gas through a common hot gas return line. Upon initiation of defrosting, the hot gas supply line is slowly pressurized for approximately 30 seconds by a smaller secondary hot gas valve prior to the main hot gas valve opening. Hot gas enters the evaporator through the suction header and flows in a reverse cycle through the evaporator, exiting through a side port on the distributor. Condensate and/or hot gas leaving the evaporator is returned to a dedicated hot gas return line. Both the hot gas supply and return lines are drained through drain lines when not in use for defrosting. Termination is accomplished by a field installed temperature located on the hot gas return line at the evaporator.
• Off-Cycle: Includes both liquid and suction isolation ball valves. (Liquid and suction solenoids optional).
• Circuit Stubs: Includes both liquid and suction isolation ball valves (only up to 3-1/8″)