© Copyright 2014 KE2 Therm Solutions, Inc., Washington, Missouri 63090

Q.1.27 July 2014

Configuring a KE2 Evaporator Efficiency for use with a Door Switch

Door Switch - Specifications - pn 20543 20543 - Door SwitchContact 22AWG

Contact Rating 10VA

Contact Type Normally Open

Max Carry Current 2 Amp

Max Switching Current .5 Amp

Breakdown Voltage 250 VDC

Operating Gap 2 inches

Temperture Range 32°F to 120°F (0°C to 49°C)

Housing Material solid aluminum housing

Cable Length 24” stainless steel armored cable

Certifications UL and ULC listed

Temperature Sensors Pressure TransducerT1SuctT4Aux T2AirT3Coil

line / L1 groundneutral / L2

NCNO

NO NC

NO NC

COM

COM

NC

Power In

gree

n

red

blac

k

NO

Transformer

3A Relay

3A Relay COM

COM

COMNCNO

COMNCNO

18V

DI 1

DI 3

DI 2

Electric Valve

Temperature Sensors (4)

Pressure Transducer

RJ45 Ethernet Connection

DAC for ECM Fan

Fuse

groundredgreenwhiteblack

Auxiliary Relay

Fan Relay (10 amp)

groundsignal +5

Defrost (Heater) Relay(20 amp)

Bk/MDL-1/4Time Delay

Liquid Line Solenoid

Power In

(compressor)

door switchsystem o�

dual temp settingexternal alarm

light switchdefrost interlock

defrost lockout

Digital Inputs

Pressure Transducer Wiring Detail black

red

green

VoltageSelector

1 2 3 4

0-10V analog out

+_

Steps for setting up the KE2 Evap for use with a door switch

Exclusively designed for rugged high traffic installations. The reed switch is hermetically sealed with a PVC shock absorber enclosed within a solid aluminum housing. Installation wires are protected in a 24” stainless steel armored cable. The magnet is mounted on an adjustable L shaped bracket designed for greater flexibility, universal mounting, greater pulling power, and to provide a professional installation appearance.

Operation of the KE2 Evap with door switch activated: Normal KE2 Evap system operation while the door is closed. When the door is opened, evaporator fans are turned off. If the door is left open for longer than 60 seconds, the solenoid (EEV) is closed to initiate system pumpdown. System will remain in pumpdown until door is closed If the door is left open for time set in Door Alarm Delay (default is 30 min.) and the temperature rises 5° above setpoint, a Door

Alarm is activated and the system is turned back on to resume cooling Once the door is closed, normal KE2 Evap system operation resumes.

1. Wire door switch (dry con-tact) to a Digital Input

© Copyright 2014 KE2 Therm Solutions, Inc., Washington, Missouri 63090

Configuring a KE2 Evaporator Efficiency for use with a Door Switch

Q.1.27 July 2014Page 2

2. Access controller’s web page and select Setpoints from the Home Page.

3. Select Login to make Setpoint changes.

4. Enter the User Name ke2admin and the Password ke2admin* and press Enter (Return) on your keyboard or click the Submit button on the bot-tom right of the screen.

*For security purposes, the User Name and Password can be changed from the factory default under the Settings Page.

Q.1.27 July 2014Page 3

© Copyright 2014 KE2 Therm Solutions, Inc., Washington, Missouri 63090

Configuring a KE2 Evaporator Efficiency for use with a Door Switch

5. Set Digital Input Mode to Door Switch from the dropdown menu.

6. Set Digital Input State to active when Open from the dropdown menu. Note: This can be set to Closed for a Normally Open door switch.

7. Click Save.

8. If the door is left open for the time set in Door Alarm Delay, an alarm is activated and the system resumes cooling.

Adjust the Door Alarm Delay based on your typical delivery timeframe.

© Copyright 2014 KE2 Therm Solutions, Inc., Washington, Missouri 63090Q.1.27 July 2014 supersedes Q.1.27 June 2014 and all prior publications

Configuring a KE2 Evaporator Efficiency for use with a Door Switch

Q.1.27 July 2014Page 4

KE2 Therm Solutions 209 Lange Dr. . Washington, MO 63090

1-888-337-3358 . www.ke2therm.com

Menu Parameters:

MANUAL CONTROLMANUAL VALVE4

CLEAR ALARMSMANUAL COMPRESSOR RELAY

MANUAL DEFROST RELAYMANUAL FAN RELAYMANUAL AUX RELAY

FACTORY RESETWEB PASSWORD RESET

DOD INITCLEAR MD

Menus: Variables Manual(view only)

Non-adjustable

NO ALARMPRESSURE SENSOR

SUCTION TEMP SENSORAIR TEMP SENSOR

COIL TEMP SENSORAUX TEMP SENSOR

HIGH SUPERHEATLOW SUPERHEAT

HIGH AIR TEMPLOW AIR TEMP

EXCESS DEFROSTDEFR TERM ON TIME

DOOR SWITCHCOMMUNICATION ERROR

EXT ALARMEMAIL FAILURE

Alarms (view only)

ENTER

ENTER

Left and Right Arrows Use to move between Menus

Up Arrow and Down ArrowScroll through Menu Parameters

ENTERPress and hold ENTER for 3 seconds, when display begins blinking changes can be made

BACK Press BACK to return to the previous view.

ENTER Press and hold ENTER for 3 seconds to save change

To change settings:

To save setting changes:

To move throughcontroller menus:

To return to Main Menu:

Indicator lights Red light - critical alarm (system o�)Yellow light - non-critical alarm (system running)Green light - compressor onGreen �ashing - compressor waiting on timer to start/stop

KE2 EvaporatorEfficiency

TM

thermsolutions

ENTER

BACK

22

1 T1 and T4 are parameters that can be set to various functions. The default for T1 is Suction Temp, the T4 is Coil Temp.

2 The Setpoint paramenters shown in BOLD (Valve Type, Room Temp Setpoint and Defrost Mode) need to be set by the user prior to start up. The other Setpoint Parameters can also be adjusted, however the factory setpoints are generally correct for most applications.

3 The Setpoint parameters shown in ITALIC are only displayed when a Custom EEV is used.

4 Displayed when an EEV is used.

5 Only available if mechanical valve is selected. When using an electric valve the default, suction temperature, is required.

6 The Setpoint parameters shown in BOLD ITALIC are used for bonded controllers only.

7 Only displayed when Run Time Defrost is selected.

ROOM TEMPCOIL TEMP

SYSTEM MODESUPERHEAT

SUCTION PRESSURE T1 SUCTION TEMP1

SATURATION TEMPVALVE % OPEN4

T4 AUX TEMP1

COMPRESSOR RELAYDEFROST RELAY

FAN RELAYAUX RELAY

DIG 1 STATUSDIG 2 STATUSDIG 3 STATUS

IP OCTET 1IP OCTET 2IP OCTET 3IP OCTET 4

SUBNET MASK OCTET 1SUBNET MASK OCTET 2SUBNET MASK OCTET 3SUBNET MASK OCTET 4

FIRMWARE VERSION

ENTER Press ENTER to go from parameter to value.To toggle beweendescription and value :

ROOM TEMP2

DEFROST TYPE2

VALVE TYPE2

MOTOR STEP RATE3

MAX VALVE STEPS3

SUPERHEAT4

MAX OPERATING PRES4

REFRIGERANTAUX TEMP 4 MODE

AUX TEMP 1 MODE5

AUX RELAY MODEFAN SPEED

MIN COMP RUN TIMEMIN COMP OFF TIME

REFRIG FAN MODEDEFROST MODEDEFROSTS / DAY

1ST DEFROST DELAYDEFROST FAN STATE

DEFROST TERM TEMPDEFROST PARAMETER/MAX DEFROST TIME

DRAIN TIMECOMP RUN TIME7

ELEC DEFROST MODEFAN DELAY TEMP

MAX FAN DELAY TIMEPUMP DOWN TIME

MULTI AIR TEMP CTRLMULTI EVAP COOL6

MULTI EVAP DEFROST 6

MULTI EVAP SENSOR6

HIGH TEMP ALARM OFFSETHIGH TEMP ALARM DELAY

LOW TEMP ALARM OFFSETLOW TEMP ALARM DELAY

DOOR ALARM DELAYDIG IN 1 MODEDIG IN 1 STATEDIG IN 2 MODEDIG IN 2 STATEDIG IN 3 MODEDIG IN 3 STATE

2ND ROOM TEMPSUCT PRES OFFSET

SUCT TEMP OFFSETAIR TEMP OFFSET

COIL TEMP OFFSETAUX TEMP OFFSET

TEMP UNITSAIR TEMP DIFF

EXTREME TEMP DIFFPROPORTIONAL

INTEGRALDERIVATIVE

Setpoints

Variables for DIG IN MODEDISABLED2ND (ROOM) TEMPDOOR SWITCHEXT ALARMSYSTEM OFFDEFROST LOCKOUTDEFROST INTERLOCK

Enter Password

Variables for DIG IN StateCLOSEDOPEN

Setting up the KE2 Evap for use with a door switch using the controller’s display

1. Using the arrows, navigate to Setpoints, then find Digital Input Mode. Changed it from Disabled to Door Switch.

2. Then change Ditigal Input State to Open (or Closed)