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Summary of Contents for KE2 Enviro-Control EvaporatorEfficiency
- Page 1 KE2 Evaporator Enviro-Control™ thermsolutions KE2 EvaporatorEfficiency ENTER BACK Installation Instructions 01/13 Rev. A 151627...
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Page 2: Table Of Contents
Introduction implementing demand defrosts. The KE2 Evap offers quick pay- The KE2 Evaporator Efficiency (KE2 Evap) is an electronically op- back, and a life expectancy that matches that of the system. The erated evaporator controller engineered to save energy in re-... -
Page 3: Location
If viewing the temperature outside the walk-in or refrigerated using accepted wiring practices, it is plugged into the controller room is desirable, the KE2 Evap may be used as a digital thermo- stat. The controller is then installed near the door of the space... - Page 4 Figure 4 shows the proper sensor placement. Due to the many factors influencing the evaporator perfor- mance, it is impossible for KE2 Therm to provide the proper loca- tion of every installation. However, the coil sensor is an integral part of the control algorithm used to determine coil efficiency to initiate, as well as, terminate defrosts.
- Page 5 Due to the spacing of the enclosure Pressure Transducer - In addition to the suction temperature the spades require a 90 degree terminal. KE2 Therm has includ- sensor, a pressure transducer is also required for superheat ed (4) spade connectors to assist in wiring the relays.
- Page 6 KE2 EvaporatorEfficiency Enviro-Control™ Installation Instructions Figure 5 - KE2 Evaporator Efficiency - Diagram (back view) Fuse 208-240 Bk/MDL-1/4 Time Delay Voltage Selector Power In 1 2 3 4 line Power In 120V - Jumpers ground neutral 1&2 3&4 Fan Relay...
- Page 7 KE2 EvaporatorEfficiency Enviro-Control™ Installation Instructions Figure 7 - Wiring Schematic - Controller New Install Legend EFM - Evaporator Fan Motor DH - Defrost Header LLS - Liquid Line Solenoid AUX - Auxiliary PT - Pressure Transducer TSUCTION - Suction Temperature...
- Page 8 KE2 EvaporatorEfficiency Enviro-Control™ Installation Instructions 01/13 Rev. A 151627...
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Page 9: Dimensions
KE2 EvaporatorEfficiency Enviro-Control™ Installation Instructions Figure 9 - KE2 Evaporator Efficiency - Dimensions (front view) Dimensions - Inches Depth 2.45” Pressure Transducer 5.75 0.95 0.67 2.03 1.40 2.03 female 1/4” SAE with 11.75 6.75 depressor Temperature Sensor 0.187 R 0.105 1.50... -
Page 10: Mounting The Controller
If using a standard/predefined EEV, the user will also be prompt- The left and right arrows move between the categories. When ed to specify the REFRIGERANT. The KE2 Evap may also be ap- pressed while in a menu, the left and right arrows will move to plied to user defined EEVs. - Page 11 KE2 Evaporator Enviro-Control™ Installation Instructions Table 2 - Navigation Through the Controller Menu and Menu Paramenters Indicator lights Red light Yellow light - non-critical alarm (system running) Green light - compressor on - compressor waiting on timer to start/stop Left Arrow and Right Arrow...
- Page 12 Enviro-Control™ Factory Default Settings Electric Defrost Factory Settings Air Defrost Factory Settings (freezer applications) (cooler applications) PARAMETER SETTING PARAMETER SETTING ROOM TEMP -10.0°F ROOM TEMP 36.0°F DEFROST TYPE ELEC DEFROST TYPE VALVE TYPE CUSTOM VALVE TYPE CUSTOM MOTOR TYPE BIPOLAR MOTOR TYPE BIPOLAR MOTOR STEP RATE...
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Page 13: Variables Menu
KE2 EvaporatorEfficiency Enviro-Control™ Installation Instructions Table 3 - Controller Menus and Menu Parameters Manual Menu Parameter Name Description Range Default MANUAL CONTROL Force the controller into the next operating mode REFRIGERATE, OFF, DEFROST, DRIP TIME, FAN DELAY MANUAL VALVE Manually open or close the EEV in percentage increments... -
Page 14: Setpoint Menu
Units for temperature’s display in °F or °C AIR TEMP DIFF The number of degrees above ROOM TEMP before the controller will go into REFRIGERATION mode EXTREME TEMP DIFF ADVANCED TOPIC: Call KE2 Therm for assistance 01/13 Rev. A 151627... - Page 15 -50°F to 90°F ELEC ELEC, AIR, HOT GAS COMP ON, HOT GAS COMP OFF MECHANICAL, KE2, SER/SEI 1 TO 20, SER B TO L, SEI 30, SEI 50, SEH, ETS12 TO 50, MECHANICAL ETS100, ETS250/400, KV, CAREL, CUSTOM; BIPOLAR, UNIPOLAR...
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Page 16: Communication
When networking multiple controllers an ethernet switch or door contact, use 2nd air temp setpoint, dis- router is required. KE2 Network Router is available in a 4-port Digital Input 3 abled, system off, external alarm notification, and KE2 Switch in an 8-port model.
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