KE2 EvapOEM User manual

KE2 EvapOEM
Quick Start Guide
PN 21231 (21214v3.0)
Q.1.45 October 2022
thermsolutions
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
This reference should remain on site with
the installed KE2 Evap OEM controller.
Overview
The KE2 Evap OEM provides the energy savings, precise temperature control,
frost reduction, and communications capability of the KE2 Evaporator Eciency
in a compact and economical package. It replaces and performs the function
of multiple mechanical components such as the thermostat, defrost time clock,
defrost termination, and fan delay. The KE2 Evap OEM controls the liquid line
solenoid (LLS), evaporator fans, and defrost heaters (if present). It is able to
control an electronic expansion valve (EEV) to regulate superheat, but will also
function with a mechanical thermostatic expansion valve.
Defrosts are initiated by a proprietary calculation of actual evaporator
eciency. When evaporator eciency has dropped to 90%, the controller will
initiate a defrost. Defrost is terminated based on one or more coil temperature
sensors. To maximize eciency, fans may run for several minutes at the start of
a defrost before turning o and energizing heaters.
Fans are also managed in a unique way. If wired to control fans with fan
management enabled, during the o cycle the controller will intelligently cycle
fans based on room and coil temperature for precise room temperature control.
Fans should always be running when the controller is calling for refrigeration.
Communications capability on the KE2 Evap OEM was designed with the
service technician in mind. The controller has built-in webpages that show
system performance in real time, allow setpoint changes, provide a 30 day
room/coil temperature graph, and a 30 day datalog of all variables. The
webpages can be accessed by smartphone or tablet through a KE2 Therm Wi-
Fi accessory, a local network, or by plugging directly into the controller with a
Cat5e cable and laptop. If the controller is provided wired internet access, it can
be accessed remotely via KE2 SmartAccess.
NO NC
COM
EARTH
ON
Panic
Alarm
Light
Control
Temp
Alarm
Door Heater
Control
Remote
Display
+
Liquid Line Sol./
Comp. Contactor
Defrost Heater
Management
Precise Room
Temperature
TEV/EEV Multiple
Alarms
Evap. Fan
Management
Remote Access
& Control
Data
Logging
KE2 Combo Display KE2 Evap OEM
+
Humidity Control
& Monitoring
Heat / Reheat
Timer
Output
Humidier /
Dehumidier
Superheat Control
Based on Humidity
KE2 Humidity Control
SHSHSH
Contents
Point to Point Wiring Diagram
Controller with KE2 Terminal Board Page 2
General Wiring Diagram
Controller without KE2 Terminal Board Page 3
Coil Sensor Location Page 4
Navigation / User Interface / Setup Page 5
Key Presses / Bonding / Pairing Page 6
Menus and Parameters
Basic Setpoints Menu Page 7
Advanced Setpoints Menu Page 7-9
Alarm Status Menu Page 10
Variables Menu Page 11
Types of Control - First Time Setup Menu Page 12
System Modes Page 12
Auxiliary Input Modes Page 12
Valve Types Page 12
Refrigerants Page 12
Alphabetical List of Abbreviations Page 13-17
KE2 SmartAccess Page 18
Dimensions Page 19
Accessories Page 20
Specications Page 21
Get your controller
online, & benet from remote
monitoring, control, and text /
e-mail alarm notices.
Just a few easy steps, with
KE2 SmartAccess
FIRST YEAR FREE
NO COMMITMENT REQUIRED
This Quickstart guide provides an overview of the controller, general wiring,
basic display operation, and setpoints. Please follow the link below for the
latest version of this document, alarm troubleshooting guide, and webpage
explanations for further information.
KE2 Evap OEM Literature
https://ke2therm.com/literature/literature-ke2-evap-oem/
KE2 Combo Display
KE2 Evap OEM controllers may be installed with the KE2 Combo Display. The KE2
Combo Display provides a remote display for the KE2 Evap OEM and a number
of extra features. Please follow the link below for further information on the KE2
Combo Display.
KE2 Combo Display Literature
https://ke2therm.com/literature/literature-ke2-combo-display/
KE2 Humidity Control
KE2 Evap OEM controllers with rmware v3.0 or above may add the KE2
Humidity Control to new or existing installs. This adds humidity monitoring
& control, including outputs for humidication, dehumidication, heat, and a
unique superheat control designed to maximize or minimize dehumidication.

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 2
KE2 EvapOEM
Quick Start Guide
BL/BK
OR/BK
Y/BK
FAN/S
HEATERS
LL SOLENOID/COMP RELAY
BK/OR
L1
WT/R
L2
HS
GND
P/N 20996
12 AMP
20 AMP
3 AMP
OR NEUTRAL HEATERS
thermsolutions
®
R/W
BL/BK
BK
BL/BK
FROM
CONTROLLER
EC MOTOR
RELAY
NO NC
COM
TSuc Aux3 Aux2 Aux1 TCoil TAir
0 to 10VDC Output
Alarm Relay** Door Alarm Relay** Variable Speed Fan
Ethernet Display
Defrost Relay
Liquid Line Solenoid/ Comp. Contactor Relay
Fan Relay
Blue Orange Yellow Red Black
Empty Red Green White Black
EEV
A B Shield
RS 485
Line/L1
Neutral/L2
Incoming Power
Red (+5 VDC) Black (0 VDC) Green (Signal)
Pressure Transducer
NO COM NC
NO
COM
Ground*
EARTH
Chassis Ground*
Fuse
NO
COM (L2)
+ –
+ –
*Use only chassis ground or spade connector ground.
**Requires PN 21304
Supply Voltage
Fan
Motor
Fan
Motor
Fan
Motor
Evaporator
Fans
Heater Safety/High Limit Switch
Defrost Heaters
Liquid Line Solenoid
N.C.





2 4
68
1
0
1
0
2 4
68
3
7
Point to Point Wiring Diagram - Controller with KE2 Terminal Board

Q.1.45 October 2022
Page 3
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
General Wiring Diagram - Controller without KE2 Terminal Board
NO
COM
NO
COM
NO
COM
NC
Fan Relay
L iq. Line Sol./
Comp. Contactor
Relay
Defrost Relay
COM
NO
L1 N/L2
VOUT MOTOR Aux3
Aux2
Aux1 TCoil TAir TSuc PSI RS-485*
HS
Defrost
Heaters
Evap Fans
S
Liquid Line Sol.
NC
NX
BLK
RED
BLK
FIELD SUPPLY
(SINGLE PHASE)
Ethernet
Display
BLUE
ORANGE
YELLOW
RED
BLACK
MOTOR
RED
GREEN
WHITE
BLACK
EEV
EMPTY
RSV
Transducer
A
B
Shield
G
GRN
ORG
*Only for use with Aux Relay Board or KE2 Humidity Control.
BLACK (0 VDC)
GREEN (SIGNAL)
RED (+5 VDC)
+
−
Optional Alarm Relay
Mechanical Relay
120V (PN 21469)
240V (PN 21470)
(+)
(−) Solid State Relay
(PN 21304)
+3/A1 2/T1
1/L1
4/A2
Line/L1
120/208-240 Vac
10A Max
Neutral/L2
20A Max
2 4 68
1 0
1 0
2 4 68
3 7

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 4
KE2 EvapOEM
Quick Start Guide
IMPORTANT
Steps to Ensure Proper Coil Sensor Location
The coil sensor acts as defrost termination sensor, and must be installed where frost is last to
disappear during defrost to ensure a clear coil.
Installing the Sensor - The most active portion of the sensor is the rst 1/2” of the probe.
The photo in Figure 2 shows that the sensor is positioned so that it is touching two circuit tubes.
When inserting the sensor into the coil, the tip should touch one of the circuit tubes, and the probe
should be inserted into the ns so approximately 1/16" of the stainless shielding is still outside of the
ns. Pinch the ns gently together, securing the sensor in place. This provides thermal ballast to ensure
a complete defrost.
NOTE: The sensor should not be located adjacent to the electric heating elements.
Alternate Method - As the defrost termination sensor, it is important to ensure the sensor does not
terminate defrost before all frost is removed from the coil. In some installations, inserting the sensor into
the coil may position it too close to the defrost heat source. An alternate method of positioning, Figure
3a, places the sensor vertically between the coil ns. Figure 3b shows the coil sensor properly secured.
NOTE: On a small fraction of installations the sensor placement may require adjusting. This is
typically caused by product loading, door openings, air ow, high/low superheat etc.The sensor(s)
should be placed where frost disappears last on the coil.
Extending sensor wires
After the sensors are mounted, they are routed back to the controller. If the wires must be extended,
use 18 gauge twisted shielded pair cable. Maximum recommended combined length for extension
is 100 ft.
If additional resistance aects the temperature or pressure reading of the controller, the temperature and
pressure may be“oset” to read correctly. Use the OFFSET* function, in the SETPOINTS menu.
* Requires KE2 Combo Display or access to the KE2 Evap OEM's webpage.
When running the sensor wires to the controller, avoid introducing electrical noise. Electrical noise can
occur when sensor wires are located near high voltage lines. Underwriter’s Laboratories denes high
voltage as above 30V. The higher the voltage, the more likely electrical noise will occur.
If crossing a high voltage line is necessary, run sensor wiring at right angles to prevent noise.
1.5”
Thermistor
Epoxy
.5”
Figure 1
Figure 2
Figure 3a Figure 3b
Technical Videos
Further information on coil sensor placement and installation are available in the videos below:
Determine coil sensor location:
https://www.youtube.com/watch?v=ZZWfEkNK-cE
Properly install a coil sensor:
https://www.youtube.com/watch?v=Q9p3rcjKlAM

Q.1.45 October 2022
Page 5
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
Access the basic setpoint menu by pressing and holding , or advanced setpoint menu by pressing and holding ,
until tS (temperature setpoint) displays on the screen.
ENTER
Press or to scroll through available setpoints.
ENTER
Press to view the current setting.
Indicator lights Red light Critical alarm (system not running)
Yellow light Non-critical alarm (system running)
Green light Calling for refrigeration, liquid Line Solenoid (LLS)/compressor contactor relay energized.
Green ashing Waiting on min. run or min. o timer to energize/de-energize LLS/comp. contactor relay.
Press or to change the setpoint.
ENTER
Press momentarily to move between the digits to accelerate the changes.
ENTER
Press and hold to save setpoint changes.
BACK
Press to escape.
BACK
Navigation Using
the Basic Display
KE2 Basic Display
Most KE2 Evap OEM controllers ship with the KE2 Basic Display. The display allows service technicians to change major setpoints. Setpoints can also be ac-
cessed using the KE2 Combo Display or the controller’s webpages.
Controller Setup
When powering up the controller for the rst time, the controller will enter
Introduction Mode. Introduction Mode consists of four Types of Control. A
maximum of four steps are required to begin refrigeration.
Step 1
Press or to move through the available Types of Control. Once the
correct option is displayed, press and hold
ENTER
for 3 seconds.
Ed Ed Electric Defrost with Mechanical TEV
AdE AdE Air Defrost with Electric Expansion Valve (EEV)
Ad Ad Air Defrost with Mechanical TEV
EdE EdE Electric Defrost with Electric Expansion Valve (EEV)
Note: For mechanical valve control options (Ed and Ad), go to Step 4.
For EEV control options (Ede and AdE), go to Step 2.
Step 2
Next, the controller asks for the Expansion Valve Type and displays
rS (RSV). If this is the correct valve, press and hold
ENTER
for 3 seconds. If
not, press or to select the correct valve. See page 12 for a list of valve
types. With correct EEV displayed, press and hold
ENTER
for three seconds.
Note: Custom valve setup is not available from the Basic Display.
Step 3
The controller next prompts for RefrigerantType and displays 404 (R-404a).
Press or to change the selection. See page 12 for a list of refrigerants.
Once you have the correct refrigerant, press and hold
ENTER
for three seconds.
Step 4
The nal prompt is to set KE2 SMART ACCESS to ENABLED or DISABLED.
KE2 SMART ACCESS allows you to easily view and modify your controllers
online. Press or to make your selection, then press and hold
ENTER
for
three seconds.
THESE ARE THE ONLY SETPOINTS REQUIRED TO BEGIN REFRIGERATION.
Variables Menu
When not in a menu, press or to cycle through the Variables. The
variables show important system information in real time. Press
ENTER
to
toggle between the variable name and value.
Changing Setpoints
To enter the Basic Setpoints menu press and hold
ENTER
until tS is
displayed. Press or to cycle through available Setpoints. Press
ENTER
to view the current setpoint value.
To enter the Advanced Setpoints menu press and hold
BACK
until tS is
displayed. Press or to cycle through the available Setpoints. Press
ENTER
to view the current setpoint value.
or will increase or decrease the numerical value or scroll through the
available options. Press
ENTER
momentarily to change the digit being modied.
Press and hold
ENTER
for 3 seconds to save the displayed value.
To cancel changes, press
BACK
to return to the setpoint abbreviation.
Manual Valve Control
Press and hold
BACK
and to switch to EEV Manual Control mode. The
current valve open percentage will be displayed. To open the valve press . To
close the valve press . The controller will immediately attempt to move the
valve in the direction indicated.
ENTER
will advance to the next digit.
BACK
will exit this mode and return to automatic control.
Manual Defrost
Press and hold
ENTER
and to put the controller into Defrost. The defrost
will terminate automatically based on coil temperature, however, pressing
and holding
ENTER
and again during defrost will skip to drain (drip) mode.
Note: Fans may run for the rst few minutes of electric defrost before
fans turn o and heaters are energized.

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 6
KE2 EvapOEM
Quick Start Guide
Bonding (Multi-Evap Applications)
Bonding allows multiple controllers to synchronize refrigeration and/or defrost.
It is required on systems with multiple evaporators on one condensing unit
with no unloading capability. Bonding can easily be done through the control-
ler webpages, or from the KE2 Basic Display if only bonding two controllers.
Run a Cat5e cable between the two controllers. Plug the cable into the Eth-
ernet port at each controller. The cable will remain permanently plugged into
both controllers in order to allow the synchronization. Cables can also be run
from each controller to a network switch, however, only the two controllers to
be bonded can be connected to the switch during the bonding process when
bonding from the display.
Go to bnd in the Advanced Menu. Press and hold
ENTER
until the red LED is
blinking. Wait several seconds. PAS means the bond was successful and both
controllers will restart. FAimeans the bond failed, check cables and ensure
only two KE2 Evap OEM controllers are on the network before trying again.
Press
ENTER
again to return to the Advanced Menu.
To unbond controllers from the display, go to Unb. Press and hold
ENTER
until
the red LED is blinking.Wait several seconds.The controllers will unbond and re-
start. If bonded to more than one controller, the controllers must be unbonded
using the webpages.
Note: Only controllers with the same rmware and version can be bonded.
Pairing (Lead/Lag, KE2 Combo Display)
Pairing is used to setup two KE2 Evap OEM controllers for lead/lag control, or
to allow them to both be displayed on a single KE2 Combo Display.
Run a Cat5e cable between the two controllers. Plug the cable into the Eth-
ernet port at each controller. The cable will remain permanently plugged into
both controllers in order to communicate. Cables can also be run from each
controller to a network switch, however, only the two controllers to be paired
can be connected to the switch during the pairing process when pairing from
the display.
Go to PAr in the Advanced Menu. Press and hold
ENTER
until the red LED
is blinking. Wait several seconds. PAS means the pair was successful. FAi
means the pair failed, check cables and ensure only two KE2 Evap OEM control-
lers are on the network before trying again. Press
ENTER
again to return to the
Advanced Menu.
To enable lead/lag control, go to tEt in the Advanced Menu. Select L
G
Cfor
redundant cool, L
G
Ffor redundant o, or ALt for Alternate. If using a redun-
dant mode, the default switch time is 12 hours. This can be adjusted using the
Lead/Lag Time setpoint LLt. Conrm the 2nd Room Temp setpoint t52, as
this will be the backup temperature setpoint for the lag controller.
To unpair controllers from the display, go to UnP. Press and hold
ENTER
until
the red LED is blinking. Wait several seconds. PAS means the unpairing was
successful. FAimeans the unpair failed. Press
ENTER
again to return to the
Advanced Menu.
Note: Only controllers with the same rmware and version can be paired.
System O (Pumpdown)
Press and hold
BACK
and at the same time until SoF is displayed. The
controller is in system o and will not refrigerate or defrost until system o
is cleared or one hour has passed. Press and hold
BACK
and again to exit
system o. Power cycling the controller resets the one hour timer. If controller
maintains SoF even after the proper button presses, check auxiliary inputs
(AU1, AU2, AU3) for proper operation.
Display Lock
Press and hold
BACK
and
ENTER
at the same time until LoC is displayed.
The display will be locked and show LoC whenever a button is pressed. To
unlock, press and hold
BACK
and
ENTER
until LoC disappears.
Diagnostics Mode
The KE2 Evap OEM has been programmed with a diagnostics mode. When
activated in the advanced setpoints menu, the controller energizes each relay
for 30 seconds. While the LLS relay is energized, the EEV will regulate to the
superheat setpoint.
To activate diagnostics mode, go to diAin the Advanced Setpoints Menu.
Press and hold
ENTER
until fan relay FAr is displayed. The defrost relay dEr,
then LLS/Comp. Contactor relay Cpr will be energized in turn.
Web Login
The User Name and Password are required when making changes to the
controller using the built-in webpages. Upon logging in for the rst time
the user will be required to change the password. Please record the new
password in a secure location for future reference.
The defaults are: User Name: ke2admin Password: ke2admin
IMPORTANT: For security purposes, the Password MUST be
changed from the default.
Resetting the controller Web Password
If the username or password for the controller is forgotten or lost, the web
page login must be reset to regain login access.
From the KE2 Basic Display default screen, press and hold
BACK
until tS is
displayed. Press several times to display PAS. Press and hold
ENTER
until
the red LED blinks, then release.
From the KE2 Combo Display default screen, press several times to navigate
to MANUAL MENU . Press
ENTER
. LOGIN will be displayed, if not logged in
already. Press
ENTER
again, 0000 will be displayed. Use  to enter the
password 2222 . Press and hold
ENTER
until the screen changes. Pressto
navigate to WEB PASSWORD RESET . Press
ENTER
to display RESET . Press
and hold
ENTER
until the display goes back to WEB PASSWORD RESET . Press
BACK
to exit.
The username and password will be reverted to the default "ke2admin",
however, the user will still be required to change from the default password
when logging in for security purposes.

Q.1.45 October 2022
Page 7
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
ADVANCED Setpoints Menu - Press and hold BACK. Setpoints marked with *depend on an auxiliary board or other setpoints to appear.
(E) denotes default if DEFROST TYPE = ELECTRIC, (A) denotes default if DEFROST TYPE = AIR.
Basic Display KE2 Combo Display Min Max Default Descripon
Abbreviaon Scrolling Text
tS tS ROOM TEMP -50.0°F90.0°F 0.0°F (E)
37.8°F (A) Room temperature to be maintained (cut-out temperature).
rFG rF
G
REFRIGERANT N/A N/A R-404A Refrigerant used. See table on page 12.
dtY dt
Y
DEFROST TYPE N/A N/A Electric (ELE) for electric. (Air) for off time. (HGn) for hot gas with LLS relay on. (HGF) for hot gas with
LLS relay off.
Edt Edt VALVE TYPE N/A N/A Mechanical Expansion valve used on system. See table on page 12.
ind
i
nd DEFROST MODE N/A N/A Demand Mode to initiate defrost. (dnd) demand. (SCH) schedule. (rnt) comp run time.
dPd* dPd DEFROSTS / DAY 0 8 5 If DEFROST MODE = SCH: Defrosts per day. Number of evenly spaced defrosts per day.
dtP dtP DEFROST TERM TEMP 35.0°F90.0°F50.0°F(E)
39.8°F(A)*
Temperature the coil sensor(s) must exceed to terminate defrost. *If DEFROST TYPE = AIR,
term temp will automatically adjust 2.0°Fabove ROOM TEMP if ROOM TEMP if changed.
dEF* dEF DEFROST PARAMETER 090 30 (E)
40 (A) If DEFROST MODE = DEMAND: Do not adjust unless directed to by KE2 Therm tech support.
dtL* dtL MAX DEFROST TIME 0 min. 90 min. 45 min. If DEFROST MODE = SCH: Maximum amount of time the defrost relay will be energized.
drn drn DRAIN TIME 0 min. 15 min. 2 min. (E)
0 min. (A) Time to be in drain mode (drip time).
rFt rFt REFRIG FAN TYPE Manage/Cycle, Per-
manent, On with Com-
pressor, Title 24
On w/
Compressor
Select evaporator fan management. (CYC) cycle, i.e. manage fans during refrigeration and
off cycle. (FoC) fans on w/ compressor will primarily manage fans only during the off cycle.
(PEr) permanent forces fans to run during refrigeration and off cycle. (t24) Title 24 cycles
fans based on California's Title 24 regulations.
FtS FtS MIN FAN SWITCH TIME 10 sec. 240 sec. 10 sec. Minimum time before fans can be turned on again after turning off.
Stt Stt SUPERHEAT 5.0°F30.0°FEEV = 8.0°F
TEV = 20.0°F
When EEV selected, target superheat value. When mechanical valve selected, high
superheat alarm threshold. If humidity control enabled, becomes minimum superheat
value.
LPt* LPt MAX TIME FOR LPCO 0 min. 15 min. 0 min.
If EEV selected: 0 = Disabled. Do not enable unless instructed to by KE2 Therm tech support.
Maximum time allowed to run compressor after entering off mode or defrost. If suction
pressure does not reach (LPC) Low Pressure Cutout in this time will lead to (Pdt) Pump
Down Timeout alarm.
LPC* LPC LOW PRESSURE
CUT OUT -5.0 psig 138.0 psig 8.0 psig If LPt greater than 0: Low pressure cut-out when low pressure cut-out (LPCO) mode is
enabled. LPCO is enabled when (LPt) is set to a value higher than 0 min.
LPd* LPd PRESS DIFF FOR LPCO 1.0 psig 50.0 psig 15.0 psig If LPt greater than 0: Differential for low pressure cut-in when LPCO mode is enabled.
LOW PRESSURE CUT OUT + PRESS DIFF FOR LPC = low pressure cut-in.
Att* Att LPCO ATTEMPTS 1 5 5
If LPt greater than 0: Number of times comp. contactor relay may be de-energized during a
refrigeration run cycle due to low pressure, or energized during an off cycle due to high
pressure, before triggering (SCC)Short Compressor Cycle alarm.
rnt* rnt COMP RUN TIME 0 hrs. 24 hrs. 6 hrs. If DEFROST MODE = rnt: Runtime defrost only, hours of refrigeration before initiating a defrost.
Htn* Htn ELECTRIC DEFROST
MODE N/A N/A Pulse If DEFROST TYPE = ELE: (Prn) Permanent, leaves defrost relay energized during the defrost
cycle. (PUL) Pulse, utilizes advanced heater management.
HAo HAo HIGH TEMP ALARM
OFFSET 0°F99.9°F 10.0°F(E)
3.0°F(A) Degrees above ROOM TEMP + AIR TEMP DIFF to trigger HIGH TEMP ALARM.
HAd HAd HIGH TEMP ALARM
DELAY 0 min. 120 min. 60 min. Delay before triggering HIGH TEMP ALARM.
LAo LAo LOW TEMP ALARM
OFFSET 0°F20.0°F4.0°FDegrees below ROOM TEMP to trigger LOW TEMP ALARM.
LAd LAd LOW TEMP ALARM
DELAY 0 min. 30 min. 10 min. Delay before triggering LOW TEMP ALARM.
dAd dAd DOOR ALARM DELAY 0 min. 180 min. 30 min. Time door must be open before triggering DOOR OPEN ALARM. Requires door switch.
AU1 AU
1
AUX IN 1 MODE N/A N/A Disabled See Auxiliary Input Modes table on page 12.
BASIC Setpoints Menu - Press and hold ENTER
Basic Display KE2 Combo Display Min Max Default Descripon
Abbreviaon Scrolling Text
tS tS ROOM TEMP -50.0°F90.0°F 0.0°F (E)
37.8°F (A) Room temperature to be maintained (cut-out temperature).
rFG rF
G
REFRIGERANT N/A N/A R-404A Refrigerant used. See table on page 12.
dtY dt
Y
DEFROST TYPE N/A N/A Electric (ELE) for Electric. (Air) for off time. (HGn) for hot gas with LLS relay on. (HGF) for hot gas with
LLS relay off.
Menus and Parameters

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 8
KE2 EvapOEM
Quick Start Guide
ADVANCED Setpoints Menu (Continued)
Basic Display KE2 Combo Display
Min Max Default Descripon
Abbreviaon Scrolling Text
A1A A
1
AAUX IN 1 STATE N/A N/A Closed (oPn) active if input is an open circuit. (CLo) active if input is shorted.
AU2 AU2 AUX IN 2 MODE N/A N/A Disabled See Auxiliary Input Modes table on page 12.
A2A A2A AUX IN 2 STATE N/A N/A Closed (oPn) active if input is an open circuit. (CLo) active if input is shorted.
AU3 AU3 AUX IN 3 MODE N/A N/A Sys Off See Auxiliary Input Modes table on page 12.
A3A A3A AUX IN 3 STATE N/A N/A Closed (oPn) active if input is an open circuit. (CLo) active if input is shorted.
tS2 tS2 2ND ROOM TEMP -50.0°F90.0°F-50.0°F
If AU1, AU2, or AU3 = (t2n) 2ND ROOM TEMP: This value becomes the ROOM TEMP setpoint when
the Auxiliary Input is active, or, if (tEt) = (LGC) Redundant Cool or (ALt) Alternate, this value
becomes the ROOM TEMP setpoint when the controller is in Lag mode.
10t
1
0t 0 TO 10 VDC MODE - - Alarm Relay (ALr) Alarm relay. (FSd) Evap fan speed control. (dAL) Door alarm relay.
tEt tet MULTI EVAP MODE - - Off
Lead/lag mode. (oFF) Off, lead/lag disabled. (LGC) Redundant Cool, time based lead/lag
with backup system controlling to 2nd Room Temp. (LGF) Redundant Off, time based lead/
lag with backup system always off. (ALt) Alternate, lead/lag system will switch after every
refrigeration run cycle.
PAd PAd PAIRED DEFROST MODE - - Off Select operation when lead/lag pair controller goes into defrost. (oFF) Off, paired controller
will stay off. (AUt) Auto, paired controller will refrigerate based on room temp.
LLt LLt LEAD/LAG TIME 1 hour 168 hours 12 hours Toggle time between lead/lag when (tEt) = (LGC) Redundant Cool or (LGF) Redundant Off.
HU* HU HUMIDITY MODE diS, EnA,
HEt diS diS (diS) Disabled. (EnA) humidity control enabled. (HEt) heater control only.
HSP* HSP HUMIDITY SP 0.0 % 100.0 % 65.0 % Humidity target for humidity control.
HdP* HdP HUMIDITY DIFF SP 0.0 % 25.0 % 5.0 % Humidity differential. Humidity setpoint +/- the differential will determine the control
range.
UAo* UAo HUM ALARM OFST SP 0.0 % 25.0 % 5.0 % Offset added & subtracted above/below Humidity Target & Humidity Differential for
High/Low Humidity alarms.
UAd* UAd HUMIDITY ALARM
DELAY 0 min. 360 min. 120 min. Delay before triggering High/Low Humidity alarm once humidity is out of range.
USt* USt MAX SUPERHEAT 8.0°F60.0°F25.0°FMaximum allowed superheat for humidity control.
dto* dto DEHUM TEMP OFFSET -140.0°F0.0°F0.0°F
DeHumidify Offset. Allows controller to overcool the space if humidity is high. Room Temp
- DeHumidify Offset is new target temperature if humidity is high. Must be a negative
number.
HEt* HEt HEATER SP -50.0°F90.0°F-50.0°FCut-in temperature for heater control.
HEd* HEd HEATER DIFF SP 0.1°F25.0°F0.1°FDifferential added to Heater Setpoint to determine heater cut-out temperature.
H2P* H2P HUMIDITY 2 SP 0.0 % 100.0 % 65.0 % Second Humidity target used when 2nd Humidity Input is active.
Unt Unt TEMP UNITS N/A N/A Fahrenheit Display temperature in (FAH) Fahrenheit or (CEL) Celsius.
EdF EdF EXTREME TEMP DIFF 0°F99.9°F20.0°FShould not be adjusted unless instructed to by KE2 Therm.
CLA CLA CLEAR ALARMS N/A N/A -Press and hold ENTER until red LED starts blinking, alarms will be reset. Sensor and
transducer alarms will immediately return until fixed.
diA d
i
ADIAGNOSTICS MODE N/A N/A -Press and hold ENTER until FAr is displayed. Energizes each relay individually for 30
seconds: (FAr) fan relay, (dEr) defrost relay, (CPr) compressor relay.
FAC FAC FACTORY RESET N/A N/A -
Press and hold ENTER to reset the controller's refrigeration setpoints to KE2 Therm
defaults. Does NOT reset network settings. Do not press unless requested to by tech
support.
PAS PAS WEB PASSWORD RESET N/A N/A -Press and hold ENTER to reset the web username and password to the factory default.
PAr*PAr PAIR L/L - - - Press and hold ENTER until red LED blinks. (PAS) successful pairing. (FAi) pairing failed. Only
two controllers can be present on network.
UnP* UnP UNPAIR L/L - - - Press and hold ENTER until red LED blinks. (PAS) successful unpairing. (FAi) unpairing failed.
bnd* bnd BOND - - - Press and hold ENTER until red LED blinks. (PAS) successful bond. (FAi) bond failed. Check
cabling and only two controllers can be present on network to bond from display.
Unb* Unb UNBOND - - - Press and hold ENTER until red LED blinks. Controllers will unbond and restart. Only works
if bonded to one other controller.
SA SA SMART ACCESS N/A N/A Disabled Turn KE2 SmartAccess on or off. (EnA) enabled. (diS) disabled.
dHC dHC DHCP N/A N/A Disabled Turn DHCP client mode on or off. (EnA) enable DHCP mode. (diS) disable DHCP mode. IP
address can change automatically from default when DHCP mode is enabled.

Q.1.45 October 2022
Page 9
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
Only
available on
controller
built-in
webpages.
Webpage Text Min Max Default Descripon
START TIMER 1* 12:00 AM 11:59 PM 12:00 AM Energizes the Timer Relay on the KE2 Humidity Control board at the specified time.
STOP TIMER 1* 12:00 AM 11:59 PM 12:00 AM De-energizes the Timer Relay on the KE2 Humidity Control board at the specified time.
START TIMER 2* 12:00 AM 11:59 PM 12:00 AM Energizes the Timer Relay on the KE2 Humidity Control board at the specified time.
STOP TIMER 2* 12:00 AM 11:59 PM 12:00 AM De-energizes the Timer Relay on the KE2 Humidity Control board at the specified time.
ADVANCED Setpoints Menu (Continued)
Basic Display KE2 Combo Display
Min Max Default Descripon
Abbreviaon Scrolling Text
Only
available on
KE2 Combo
Display or
controller
built-in
webpages.
MOTOR TYPE Unipolar or Bipolar Unipolar Motor type for custom valve, bipolar or unipolar.
MOTOR STEP RATE 30 400 40 Motor Step rate for custom valve.
MAX VALVE STEPS 200 6400 500 Full stroke steps for custom valve.
MAX OPERATING PRES 10.0 psig 150.0
psig** 150.0 psig** **Max operating pressure. Max is 300 when R-410A selected, 750 when R-744
selected.
FAN SPEED -100.0% 100.0% 0.0% Fan speed %. Do not adjust unless using the 0-10 VDC output for variable speed fans.
MIN COMP RUN TIME 0 min. 15 min. 2 min. Minimum Compressor Run Time.
MIN COMP OFF TIME 0 min. 15 min. 5 min. Minimum Compressor O Time.
1ST DEFROST DELAY 0 min. 240 min. 120 min. If DEFROST MODE = SCHEDULED delay after power cycle before initiating 1st scheduled
defrost.
DEFROST FAN STATE ON or OFF OFF(E)/
ON(A) OFF = fans off during defrost; ON = fans ON during defrost.
FAN DELAY TEMP -40.0°F35.0°F5.0°FAfter electric or hot gas defrost, temperature that coil must fall below to resume normal
fan operation, or Max Fan Delay Time elapses, whichever is sooner.
MAX FAN DELAY TIME 0 min. 20 min. 3 min. (E)
0 min. (A) Maximum amount of time after defrost to resume normal fan operation.
PUMP DOWN TIME 0 min. 90 min. 0 min. Minimum time between de-energizing the liquid line solenoid/compressor contactor relay
and energizing the defrost relay.
MULTI AIR TEMP CTRL Warmest or Average Warmest Air Bonded controls w/synchronized refrigeration only. Warmest Air = use warmest air temp
from bonded controls; Average Air = use average of air temp from bonded controls.
MULTI EVAP COOL Synchronized or
Independent
Synchro-
nized
Synchronized = synchronize bonded controller in refrigeration mode; Independent =
bonded controllers control temperature independently bonded controllers refrigerate
independently based on their local room temp sensor.
MULTI EVAP DEFROST Synchronized or
Independent
Synchro-
nized
Synchronized = synchronize bonded controller in defrost mode; Independent = bonded
controllers defrost independently.
MULTI EVAP SENSOR Shared or Unshared Shared Shared = share sensor readings from bonded controllers; Unshared = use local sensor
readings only.
ROOM TMP IND DEF -50.0°F90.0°F0.0°F
Room temp while bonded controller is in defrost. Only applies to bonded controllers with
Multi Evap Defrost set to Independent. Allows better defrost performance in certain multi-
evap applications.
SUCT PRES OFFSET -5.0°F5.0°F0.0°FOffset added or subtracted from the suction line pressure transducer reading, if needed.
SUCT TEMP OFFSET -5.0°F5.0°F0.0°FOffset added or subtracted from the suction temp sensor reading, if needed.
COIL TEMP OFFSET -5.0°F5.0°F 0.0°FOffset added or subtracted from the coil temperature sensor reading, if needed.
AIR TEMP OFFSET -5.0°F5.0°F0.0°F Offset added or subtracted from the room temperature sensor reading, if needed.
AUX 1 OFFSET -5.0°F5.0°F0.0°F
When Aux1, Aux2, or Aux 3 is used as a temperature sensor, an offset is added or
subtracted from the reading.
AUX 2 OFFSET -5.0°F5.0°F0.0°F
AUX 3 OFFSET -5.0°F 5.0°F0.0°F
PROPORTIONAL 0255 3Coefficient to valve control algorithm. Increases responsiveness as value increases.
INTEGRAL 0255 5Coefficient to valve control algorithm. Increases responsiveness as value increases.
DERIVATIVE 0255 3Should not be adjusted unless instructed to by KE2 Therm.
AIR TEMP DIFF 0.1°F5.0°F1.0°FDegrees above ROOM TEMP before the controller will begin REFRIGERATION.
HUMIDITY OFFSET* -5.0% 5.0% 0.0% Offset added or subtracted from the humidity sensor reading, if needed.
MIN OPERATING
PRESSURE* 0.0 psig 150.0
psig** 0.0 psig **Min operating pressure when humidity control is enabled & EEV present. Max is 300 when R-410A selected, 750 when R-744 selected.

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 10
KE2 EvapOEM
Quick Start Guide
Alarm Status Menu - See Q.1.61 Alarm Troubleshooting Guide for further details. https://ke2therm.com/literature/literature-ke2-evap-oem/
Basic Display KE2 Combo Display Descripon
Abbreviaon Scrolling Text
EAP EAP N/A Not an alarm. Displays when controller is powering up.
PrF PrF N/A KE2 Basic Display not able to communicate with controller.
PSA PSA PRESSURE SENSOR Suction pressure sensor is shorted, open, or pressure out of range.
SSA SSA SUCTION TEMP SENSOR Suction temp sensor is shorted or open.
ASA ASA AIR TEMP SENSOR Return air temp sensor is shorted or open.
CSA CSA COIL TEMP SENSOR Coil temp sensor is shorted or open.
HSH HSH HIGH SUPERHEAT [EEV] Superheat 2°F above SUPERHEAT setpoint for 90 minutes of cumulative runtime, and valve > 90% open.
[TEV] Superheat above SUPERHEAT setpoint for 90 minutes of cumulative runtime.
LSH LSH LOW SUPERHEAT Superheat below 3°F for 5 minutes and EEV < 10% open.
HtA HtA HIGH AIR TEMP Air temp above ROOM TEMP + AIR TEMP DIFF + HIGH TEMP ALARM OFFSET longer than HIGH TEMP ALARM DELAY.
LtA LtA LOW AIR TEMP Air temp below ROOM TEMP - LOW TEMP ALARM OFFSET longer than LOW TEMP ALARM DELAY.
EdF EdF EXCESS DEFROST Time between defrosts too short in demand defrost. Check if defrost terminating on temperature properly.
dtt dtt DEFR TERM ON TIME Defrost terminated on time instead of temperature for two consecutive cycles.
dor dor DOOR SWITCH Door open and air temp above ROOM TEMP + 0.5°F longer than DOOR ALARM DELAY.
CoA CoA COMMUNICATION ERROR [Bonded controllers only] No communication between bonded controllers for one minute or more.
EA1 EA
1
EXTERNAL ALARM 1 If AU1 = EAL and the auxiliary input is in an active state.
EA2 EA2 EXTERNAL ALARM 2 If AU2 = EAL and the auxiliary input is in an active state.
EA3 EA3 EXTERNAL ALARM 3 If AU3 = EAL and the auxiliary input is in an active state.
EFL EFL EMAIL FAILURE Email alert was not confirmed by provided email server after seven consecutive attempts.
A1A A
1 AAUX1 SENSOR AU1 is set to rtP, CLt, or oni and temp sensor is shorted or open.
A2A a2a AUX2 SENSOR AU2 is set to rtP, CLt, or oni and temp sensor is shorted or open.
A3A a3a AUX3 SENSOR AU3 is set to rtP, CLt, or oni and temp sensor is shorted or open.
Pdt Pdt PUMP DOWN TIMEOUT [LPCO only] LOW PRESSURE CUT OUT TIME exceeded before suction pressure reached Low Pressure Cut Out.
SCC SCC SHORT COMP CYCLE [LPCO only] Compressor started excessive number of times due to suction pressure in off mode, or compressor cut-out
excessive number of times due to suction pressure while in refrigeration mode.
LPA LPA LOW PRESSURE [LPCO only] Suction pressure low despite attempts to run.
CLL CLL LEAD/LAG COMM ERROR Communication lost between lead/lag controllers.
CCA CCACOMP SEQ COMM ERROR [Siteview Only] Communication lost to KE2 Compressor Sequencer OEM.
ntP ntp TIMER SERVER COMM Controller cannot communicate with external time of day server (SNTP server).
dtS dtS DOOR TEMP SENSOR Combo Display Aux 1 Door Temp Sensor is shorted or open.
dt2 dt2 DISPLAY AUX2 SENSOR Combo Display Aux 2 Temp Sensor is shorted or open.
dt3 dt3 DISPLAY AUX3 SENSOR Combo Display Aux 3 Temp Sensor is shorted of open.
dtH dtH DOOR TEMP HIGH Combo Door Temp above Door Temperature + High Door Alarm Oset longer than High/Low Door Temperature Alarm Delay.
dtL dtL DOOR TEMP LOW Combo Door Temp below Door Temperature - Low Door Alarm Oset longer than High/Low Door Temperature Alarm Delay.
Hd2 Hd2 HIGH MONITOR TEMP2 Combo Aux2 Monitor Temp above Monitor Temp2 High Alarm longer than Monitor Temp2 Alarm Delay.
Ld2 Ld2 LOW MONITOR TEMP2 Combo Aux2 Monitor Temp below Monitor Temp2 Low Alarm longer than Monitor Temp2 Alarm Delay.
Hd3 Hd3 HIGH MONITOR TEMP3 Combo Aux3 Monitor Temp above Monitor Temp3 High Alarm longer than Monitor Temp3 Alarm Delay.
Ld3 Ld3 LOW MONITOR TEMP3 Combo Aux3 Monitor Temp below Monitor Temp3 Low Alarm longer than Monitor Temp3 Alarm Delay.
EA1 EA
1
DISPLAY EXTERNAL ALARM 1 Combo External Alarm 1 input is active.
EA2 EA2 DISPLAY EXTERNAL ALARM 2 Combo External Alarm 2 input is active.
EA3 EA3 DISPLAY EXTERNAL ALARM 3 Combo External Alarm 3 input is active.
Pbt pbt HELP Combo Display panic button is active. Press and hold panic button again to clear.
HSA HSA HUMIDITY SENSOR Humidity sensor is shorted or open.
HHA HHA HIGH HUMIDITY Humidity above HUMIDITY SP + HUMIDITY DIFF + HUMIDITY ALARM OFFSET for longer than HUMIDITY ALARM DELAY.
LHA LHA LOW HUMIDITY Humidity below HUMIDITY SP - HUMIDITY DIFF - HUMIDITY ALARM OFFSET for longer than HUMIDITY ALARM DELAY.
CHA CHA HUMIDITY COMM KE2 Evap OEM lost communication with KE2 Humidity Control board for 10 seconds.

Q.1.45 October 2022
Page 11
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
Variables Menu
Basic Display KE2 Combo Display Descripon
Abbreviaon Scrolling Text
rtP rtP ROOM TEMP Room Temperature as measured by controller.
HU HU HUMIDITY Relative humidity as measured by controller.
CLt CLt COIL TEMP Coil Temperature as measured by controller.
SYS S
Y
SSYSTEM MODE Current operating status.
SHt SHt SUPERHEAT Superheat as calculated by the controller.
PrS PrS SUCTION PRESSURE Suction Pressure as measured by controller.
SUt SUt T1 SUCTION TEMP Suction Temperature as measured by controller.
SAt SAt SATURATION TEMP Saturation Temperature as calculated by controller.
oPn oPn VALVE % OPEN Percentage EEV is open.
LLS LLS LLS RELAY Current status of LLS/Compressor Contactor Relay.
dEr dEr DEFROST RELAY Current status of Defrost Relay.
FAr FAr FAN RELAY Current status of Fan Relay.
HUr HUr HUMIDIFIER RELAY Current status of Humidifier Relay.
dHr dHr DEHUMIDIFIER RELAY Current status of Dehumidifier Relay.
Htr Htr HEATER RELAY Current status of Heater Relay.
t r t r TIMER RELAY Current status of Timer Relay.
AU1 AU1AUX 1 STATUS Current status/temperature as measured by controller at Aux Input 1.
AU2 AU2 AUX 2 STATUS Current status/temperature as measured by controller at Aux Input 2.
AU3 AU3 AUX 3 STATUS Current status/temperature as measured by controller at Aux Input 3.
HU2 HU2 2ND HUM SP STAT 2nd Humidity Input status, when active uses 2nd Humidity Setpoint as humidity target.
ott ott OR TIMER STAT Timer Override Input status. When input is active energizes Timer Relay.
iP1
i
P1 IP OCTET 1 First 3 digits of the controller's IP address.
iP2
i
P2 IP OCTET 2 Second 3 digits of the controller's IP address.
iP3
i
P3 IP OCTET 3 Third 3 digits of the controller's IP address.
iP4
i
P4 IP OCTET 4 Fourth 3 digits of the controller's IP address.
PnH PnH FIRMWARE PARTNUM First three digits of firmware PN.
PnL PnL FIRMWARE PARTNUM Last three digits of firmware PN.
Fir F
i
rFIRMWARE VERSION Current version of firmware on controller.

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 12
KE2 EvapOEM
Quick Start Guide
First Time Setup - Types of Control & KE2 SmartAccess
Basic Display KE2 Combo Display Descripon
Abbreviaon Scrolling Text
Ed Ed ELECTRIC DEFROST /TEV Electric Defrost w/Mechanical valve
EdE EdE ELECTRIC DEFROST /EEV Electric Defrost w/Electric Expansion Valve
Ad Ad AIR DEFROST /TEV Air Defrost w/Mechanical Valve
AdE AdE AIR DEFROST /EEV Air Defrost w/Electric Expansion Valve
SA SA SMART ACCESS MODE KE2 SmartAccess (Enabled/Disabled)
System Modes
Basic Display KE2 Combo Display Descripon
Abbreviaon Scrolling Text
EAP EAP EVAP Displays when controller is starting up (KE2 Evap OEM).
rEF rEF REFRIGERATE Controller is calling for refrigeration (LLS/Compressor Contactor relay
should be energized).
ddF ddF DEFROST DELAY FAN Preparing for defrost by stopping refrigeration and running fans only.
dEF dEF DEFROST Controller in defrost mode.
drn drn DRAIN TIME Controller in drain or "drip" time.
FdL FdL FAN DELAY Controller in fan delay, will turn on fans once coil reaches fan delay temp.
SoF SoF SYSTEM OFF Controller in system off.
oFF oFF OFF Satisfied on temperature or off for other reason (ex. door switch).
Refrigerants
Abbreviation Full Name
404 404 R-404A
458 458 R-458A
452 452 R-452A
513 5
1
3R-513A
450 450 R-450A
449 449 R-449A
448 448 R-448A
744 744 R-744
410 4
1
0R-410A
407 407 R-407F
409 409 R-409A
408 408 R-408A
438 438 R-438A
717 7
1
7R-717
r22 r22 R-22
134
1
34 R-134a
42d 42d R-422D
42A 42A R-422A
40C 40C R-407C
40A 40A R-407A
507 507 R-507
Auxiliary Input Modes
Basic Display KE2 Combo Display Descripon
Abbreviaon Scrolling Text
diS d
i
SDISABLED Not used.
rtP rtP ROOM TEMP Sets the Aux Input as an additional room (air) temperature sensor input.
CLt CLt COIL TEMP Sets the Aux Input as an additional coil temperature sensor input.
oni on
i
MONITOR Sets the Aux Input as a monitor temperature input. Monitor temp does not affect controller operation.
t2n t2n 2ND (ROOM) TEMP Switches between main and 2nd Room Temperature setpoints.
Inactive = 2nd room temp SP off (t2F). Active = 2nd room temp SP on (t2n).
dor dor DOOR SWITCH Inactive = Door Closed (dCL). Active = Door Open (don).
EAL EAL EXT ALARM Receive a dry contact from a 3rd party device to show an alarm for that device on the controller.
Active = (EAo). Inactive = (EAF).
SoF SoF SYS OFF Active input will cause the controller to enter system off (pumpdown).
Inactive = System On (Son).Active = System Off (SoF).
dFi dF
i
DFR INTERLOCK Prevents the defrost relay from energizing when active.
Inactive = Defrost Heaters normal (AUt). Active = Defrost Heaters Off (oFF).
dFL dFL DEFR LOCK Prevents defrost from initiating when active.
Inactive = Defrost Normal (AUt). Active = Defrost Not Allowed (dLo).
Valve Types
Basic Display KE2 Combo Display Descripon
Abbreviaon Scrolling Text
tHr tHr MECHANICAL Traditional Thermostatic Expansion Valve.
PLS PLS PULSE VALVE Pulse Width Modulation (PWM) Valve.
rS rS KE2 RSV KE2 Therm’s Refrigeration Stepper Valve.
SEi SE
i
SER/SEI 1 TO 20 12 VDC Bipolar Sporlan EEV with 1,600 max steps, 200 steps/second.
SEr SEr SER AA TO L 12 VDC Bipolar Sporlan EEV with 2,500 max steps, 200 steps/second.
CrL CrL CAREL 12 VDC Bipolar Carel EEV with 480 max steps, 50 steps/second.

Q.1.45 October 2022
Page 13
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
Alphabetical List of Abbreviations
Abbreviaon Full Name Type Descripon
10t
1
0t 0 to 10 VDC Mode Setpoint (ALr) Alarm relay. (FSd) Evap fan speed control. (dAL) Door alarm relay.
A1A A
1
AAux Input 1 state Setpoint (oPn) active if input is an open circuit. (CLo) active if input is shorted.
A1A A
1
AAU1 Temp Sensor Alarm Alarms AU1 is set to rtP, CLt, or oni and temp sensor is shorted or open.
A2A a2a Aux Input 2 state Setpoint (oPn) active if input is an open circuit. (CLo) active if input is shorted.
A2A a2a AU2 Temp Sensor Alarm Alarms AU2 is set to rtP, CLt, or oni and temp sensor is shorted or open.
A3A a3a Aux Input 3 state Setpoint (oPn) active if input is an open circuit. (CLo) active if input is shorted.
A3A a3a AU3 Temp Sensor Alarm Alarms AU3 is set to rtP, CLt, or oni and temp sensor is shorted or open.
Ad ad Air Defrost w/Mechanical valve Type of
Control System operates with default values for Air Defrost and Mechanical Valve.
AdE ade Air Defrost w/EEV Type of
Control System operates with default values for Air Defrost and Electric Valve.
Ai A
i
Air Defrost (Off time) Setpoint Option for evaporator Defrost Type (dtY) setpoint. (Ai) Air O time Defrost. Other options are (ELE) Electric, (HGn)
Hot Gas w/ Compressor On, and (HGF) Hot Gas w/ Compressor O.
ALt aLt Alternate Setpoint Sets lead/lag control to alternate. Lead/lag will switch after every refrigeration run cycle.
ALr aLr Alarm Relay Setpoint Sets 0 to 10 VDC output to alarm relay.
ASA aSA Air Sensor Alarm Alarms Return air temp sensor is shorted or open.
AU1 AU
1
Aux Input 1 Variables Current status/temperature as measured by controller at Aux1 input.
AU1 AU
1
Aux Input 1 mode Setpoint Options for configuring the Auxiliary Input, see Auxiliary Input Modes table.
AU2 aU2 Aux Input 2 Variables Current Status/Temperature as measured by controller at Aux2 input.
AU2 aU2 Aux Input 2 mode Setpoint Options for configuring the Auxiliary Input, see Auxiliary Input Modes table.
AU3 aU3 Aux Input 3 Variables Current Status/Temperature as measured by controller at Aux3 input.
AU3 aU3 Aux Input 3 mode Setpoint Options for configuring the Auxiliary Input, see Auxiliary Input Modes table.
AUt aUt Defrost Interlock -Heaters Normal Auxiliary
Input Defrost interlock inactive. Defrost heaters will energize as needed.
AUt aUt Defrost Lockout - Defrost Normal Auxiliary
Input Defrost lockout inactive. Defrost will be initiated as normal by controller logic.
bnd bnd Bond Setpoint Press and hold ENTER until red LED blinks. (PAS) successful bond. (FAi) bond failed. Only two controllers can be
present on network to bond from display.
CCA CCACompressor Communications
Alarm Alarms [Siteview Only] Communication lost to KE2 Compressor Sequencer OEM.
CEL CEL Celsius Setpoint Option for Temp Units (Unt) setpoint. (FAH) Fahrenheit. (CEL) Celsius.
CHA CHA Humidity Comms Alarm Alarms KE2 Evap OEM lost communication with KE2 Humidity Control board for 10 seconds.
CLA CLA Clear Alarms Setpoint Press and hold ENTER until red LED starts blinking, alarms will be reset. Sensor and transducer
alarms will immediately return until fixed.
CLL CLL Lead/Lag Comm Error Alarms Communication lost between lead/lag controllers.
CLo CLo Closed Setpoint Option for Aux Input State (A1A, A2A, A3A) setpoints. Input will be Active when it reads a closed circuit.
CLt CLt Coil Temp Variables Coil temperature (TCoil Sensor) as measured by the controller.
CLt CLt Coil Temp Auxiliary
Input Coil Temp as measured by Aux input.
CoA CoA Communication Alarm Alarms [Bonded controllers only] No communication between bonded controllers for one minute or more.
CrL CrL Carel Valve Type Pre-configured EEV selection. 12 VDC Bipolar Carel EEV with 480 max steps, 50 steps/second.
CSA CSA Coil Sensor Alarm Alarms Coil temperature sensor is shorted or open.
CYC C
Y
CCycle Setpoint Option under Refrig Fan Type (rFt) setpoint. (CYC) to cycle, i.e. managed fan control. Other options are (FoC) on
w/ compressor, (PEr) permanent, and (t24) title 24.
dAd dAd Door Open Alarm Delay Setpoint Time door must be open before triggering DOOR OPEN ALARM. Requires door switch.
dAL dAL Door Alarm Setpoint Sets 0 to 10 VDC output to door alarm. Will only activate for door alarm.
dCL dCL Door Switch - Door Closed Auxiliary
Input Auxiliary input set to Door Switch indicates that the door is closed.
ddF ddF Defrost Delay Fan System
Mode
At start of defrost, fans will continue running for several minutes, using stored cooling in the coil.
Once the coil reaches room temp, fans will stop, and heaters will turn on to begin electric defrost.
dEF dEF Defrost Parameter Setpoint If DEFROST MODE = DEMAND: Do not adjust unless directed to by KE2 Therm tech support.
dEF dEF Defrost System
Mode Controller is performing a defrost cycle.

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 14
KE2 EvapOEM
Quick Start Guide
Alphabetical List of Abbreviations - (Continued)
Abbreviaon Full Name Type Descripon
dEr dEr Defrost Relay Variables Current state of the defrost relay.
dFi dF
i
Defrost Interlock Switch Auxiliary
Input
Option for Auxiliary Input. When inactive (AUt) defrost energize as normal. Active (oFF) defrost heaters forced
o.
dFL dFL Defrost Lockout Switch Auxiliary
Input
Option for Auxiliary Input. When inactive (AUt) defrost will be initiated as normal by controller logic. Active
(dLo) defrost not allowed.
dHC dHC DHCP Setpoint Turn DHCP client mode on or o. (EnA) enable DHCP mode. (diS) disable DHCP mode.
dHr dHr Dehumidier Relay Variables Current status of Dehumidier Relay.
diA d
i
ADiagnostics Mode Setpoint Press and hold ENTER until FAr is displayed. Energizes each relay individually for 30 seconds: (FAr) fan relay, (dEr)
defrost relay, (CPr) compressor relay.
diS d
i
SDisabled Auxiliary
Input Input is not used by the controller.
dLo dLo Defrost Lockout Auxiliary
Input Defrost Lockout active. Defrost not allowed while signal is active.
dnd dnd Demand Defrost Setpoint Option for Defrost Initiation Mode (ind) setpoint. (dnd) Demand Defrost, system will defrost only when dic-
tated to by a decrease in evaporator eciency. Other options are (SCH) Scheduled, and (rnt) Compressor Run
Time.
don don Door Switch - Door Open Auxiliary
Input Auxiliary Input set to Door Switch indicates door is open.
dor dor Door Switch Auxiliary
Input Inactive (dCL) door closed. Active (don) door open, refrigeration, and fans will temporarily stop.
dor dor Door Open Alarm Alarms Door open and room temp above ROOM TEMP + 0.5°F longer than DOOR ALARM DELAY.
dPd dPD Defrosts per day Setpoint If DEFROST MODE = SCH: Defrosts per day. Number of evenly spaced defrosts per day.
drn drn Drain Time Setpoint Time to be in drain mode (drip time).
drn drn Drain System
Mode Time after defrost to allow moisture to drain from coil (drip time).
dt2 dt2 Disp Aux2 Sensor Alarms Combo Display Aux 2 Temp Sensor is shorted or open.
dt3 dt3 Disp Aux3 Sensor Alarms Combo Display Aux 3 Temp Sensor is shorted of open.
dtH dtH High Door Temp Alarms Combo Door Temp above High Door Alarm Oset longer than High/Low Door Temperature Alarm Delay.
dtL dtL Low Door Temp Alarms Combo Door Temp below Low Door Alarm Oset longer than High/Low Door Temperature Alarm Delay.
dtL dtL Max Defrost Time Setpoint If DEFROST MODE = SCH: Maximum amount of time the defrost relay will be energized.
dto dto DeHumidify Temp Offset Setpoint Allows controller to overcool the space if humidity is high. Room Temp - DeHumidify Oset is new target
temperature if humidity is high. Must be a negative number.
dtP dtP Defrost Term Temp Setpoint Temperature the coil sensor(s) must exceed to terminate defrost. If DEFROST TYPE = AIR, term temp will auto-
matically adjust 2.0°F above ROOM TEMP if ROOM TEMP is changed.
dtS dtS Door Temp Sensor Alarm Alarms Combo Display Aux 1 Door Temp Sensor is shorted or open.
dtt dtt Defr Term on Time Alarm Alarms Defrost terminated on time instead of temperature for two consecutive cycles.
dtY dt
Y
Defrost Type Setpoint (ELE) for Electric. (Air) for o time. (HGn) for hot gas with LLS relay on. (HGF) for hot gas with LLS relay o.
EA1 EA
1
External Alarm Switch Auxiliary
Input Shows status of external alarm input. Active (EAo). Inactive (EAF).
EA1 EA
1
External Alarm 1 Alarms If AU1 = EAL and the auxiliary input is in an active state.
EA2 EA2 External Alarm 2 Alarms If AU2 = EAL and the auxiliary input is in an active state.
EA3 EA3 External Alarm 3 Alarms If AU3 = EAL and the auxiliary input is in an active state.
EA1 EA
1
Disp Ext 1 Alarm Alarms Combo External Alarm 1 input is active.
EA2 EA2 Disp Ext 2 Alarm Alarms Combo External Alarm 2 input is active.
EA3 EA3 Disp Ext 3 Alarm Alarms Combo External Alarm 3 input is active.
EAo EAo External Alarm Switch Active Auxiliary
Input Auxiliary input set to external alarm is receiving an active signal.
EAF EAF External Alarm Switch Inactive Auxiliary
Input Auxiliary input set to external alarm is not receiving an active signal.
EAP EAP N/A System
Mode Not an alarm. Displays when controller is powering up.
Ed Ed Electric Defrost w/Mech. valve Type of
Control System operates with default values for Electric Defrost with Mechanical Valve.

Q.1.45 October 2022
Page 15
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
Alphabetical List of Abbreviations - (Continued)
Abbreviaon Full Name Type Descripon
EdE EdE Electric Defrost w/EEV Type of
Control System operates with default values for Electric Defrost with Electric Valve.
EdF EdF Extreme Temp Diff Setpoint Should not be adjusted unless instructed to by KE2 Therm.
EdF EdF Excess Defrost Alarm Alarms Time between defrosts too short in demand defrost. Check if defrost terminating on temp properly.
Edt Edt Valve Type Setpoint Expansion valve on the system: (tHr) mechanical, pre-congured electronic, or custom EEV conguration.
EFL EFL Email Failure Alarm Alarms Email alert was not conrmed by email server provided after seven consecutive attempts.
ELE ELE Electric Defrost Setpoint Option for evaporator Defrost Type (dtY) setpoint. (ELE) Electric. Other options are (Ai) Air (O Time) Defrost,
(HGn) Hot Gas w/ Compressor On, and (HGF) Hot Gas w/ Compressor O.
EnA EnA Enabled Setpoint Enables connection with KE2 SmartAccess for remote monitoring and control.
FAC FAC Factory reset Setpoint Press and hold ENTER to reset the controller's refrigeration setpoints to KE2 Therm defaults. Does NOT reset
network settings. Do not press unless requested to by tech support.
FAH FAH Fahrenheit Setpoint Option for Temp Units (Unt) setpoint. (FAH) Fahrenheit. (CEL) Celsius.
FAr FAr Fan Relay Variables Current state of the fan relay.
FdL FdL Fan Delay System
Mode
After drain mode (drn), the LLS relay will energize, and the coil will pulldown until it reaches the Fan Delay
Temp or Max Fan Delay Time, whichever is sooner. This allows any moisture on the coil to re-freeze, keeping it
from spraying and forming ice drops on the walk-in’s surfaces.
Fir F
i
rFirmware Version Variables Current version of the rmware on the controller.
FoC FoC Fans on with Compressor Setpoint Option under Refrig Fan Type (rFt) setpoint. (FoC) on w/ compressor. Other options are (CYC) to cycle, i.e. man-
aged fan control, (PEr) permanent, and (t24) title 24.
FSd FSd Evap Fan Speed Setpoints Sets 0 to 10 VDC output to variable speed evaporator fan control.
FtS FtS Min Fan Switch Time Setpoints Minimum time before fans can be turned on again after turning o.
H2P H2P Second Humidity Setpoint Setpoint Humidity target used when 2nd Humidity Input is active.
HAd HAd High Temp Alarm Delay Setpoint Delay before triggering HIGH TEMP ALARM.
HAo HAo High Temp Alarm Offset Setpoint Degrees above ROOM TEMP + AIR TEMP DIFF to trigger HIGH TEMP ALARM.
Hd2 Hd2 High Mon2 Temp Alarms Combo Aux2 Monitor Temp above Monitor Temp2 High Alarm longer than Monitor Temp2 Alarm Delay.
Hd3 Hd3 High Mon3 Temp Alarms Combo Aux3 Monitor Temp above Monitor Temp3 High Alarm longer than Monitor Temp3 Alarm Delay.
HdP HdP Humidity Differential Setpoint Humidity dierential. Humidity setpoint +/- the dierential will determine the control range.
HEd HEd Heater Differential Setpoint Dierential added to Heater Target to determine heater cut-in temperature.
HEt HEt Heater Target Setpoint Cut-out temperature for heater control.
HGF H
G
FHot Gas Defrost w. Compressor Off Setpoint Option for evap Defrost Type (dtY) setpoint. (HGF) Hot Gas w/ Compressor O. Other options are (Ai) Air O
time Defrost, (ELE) Electric, and (HGn) Hot Gas w/ Compressor On.
HGn H
G
nHot Gas Defrost w. Compressor On Setpoint Option for evap Defrost Type (dtY) setpoint. (HGn) Hot Gas w/ Compressor On. Other options are (Ai) Air O
time Defrost, (ELE) Electric, and (HGF) Hot Gas w/ Compressor O.
HHA HHA High Humidity Alarms Humidity above HUMIDITY SP + HUMIDITY DIFF + HUMIDITY ALARM OFFSET for longer than HUMIDITY ALARM DELAY.
HS HS HSV Valve Type Pre-congured EEV selection. (HS) KE2 Therm’s HSV, Hybrid Stepper Valve (removed in v2.05).
HSA HSA Humidity Sensor Alarms Humidity sensor is shorted or open.
HSH HSH High Superheat Alarm Alarms [EEV] Superheat 2°F above SUPERHEAT setpoint for 90 min. of cumulative runtime, and valve > 90% open.
[TEV] Superheat above SUPERHEAT setpoint for 90 minutes of cumulative runtime.
HSP HSP Humidity Target Setpoint Setpoint Humidity target for humidity control.
HtA HtA High Temperature Alarm Alarms Air temp above ROOM TEMP + AIR TEMP DIFF + HIGH TEMP ALARM OFFSET longer than HIGH TEMP ALARM DELAY.
Htn Htn Electric Defrost Mode Setpoint If DEFROST TYPE = ELE: (Prn) Permanent, leaves defrost relay energized during the defrost cycle.
(PUL) Pulse, utilizes advanced heater management.
Htr Htr Heater Relay Current status of Heater Relay.
HU HU Humidity Mode Setpoint (diS) Disabled. (EnA) humidity control enabled. (HEt) heater control only.
HU HU Humidity Variables Relative humidity as measured by controller.
HU2 HU2 2nd Humidity Setpoint Input Variables 2nd Humidity Input status, when active uses 2nd Humidity Setpoint as humidity target.
HUr HUr Humidier Relay Variables Current status of Humidier Relay.
ind
i
nd Defrost Initiation Mode Setpoint Mode to initiate defrost. (dnd) demand. (SCH) schedule. (rnt) comp run time.
iP1
i
P
1
IP Address Part 1 Variables First 3 digits of the controller's IP address.
iP2
i
P2 IP Address Part 2 Variables Second 3 digits of the controller's IP address.
iP3
i
P3 IP Address Part 3 Variables Third 3 digits of the controller's IP address.
iP4
i
P4 IP Address Part 4 Variables Fourth 3 digits of the controller's IP address.
LAd LAD Low Temp Alarm Delay Setpoint Delay before triggering LOW TEMP ALARM.

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 16
KE2 EvapOEM
Quick Start Guide
Alphabetical List of Abbreviations - (Continued)
Abbreviaon Full Name Type Descripon
LAo LAo Low Temp Alarm Offset Setpoint Degrees below ROOM TEMP to trigger LOW TEMP ALARM.
Ld2 Ld2 Low Mon2 Temp Alarms Combo Aux2 Monitor Temp below Monitor Temp2 Low Alarm longer than Monitor Temp2 Alarm Delay.
Ld3 Ld3 Low Mon3 Temp Alarms Combo Aux3 Monitor Temp below Monitor Temp3 Low Alarm longer than Monitor Temp3 Alarm Delay.
LGC L
G
CRedundant Cool Setpoint Sets lead/lag control to redundant cool. Switches lead/lag based on time. Lag system will act as backup
system and refrigerate if room temperature rises.
LGF L
G
FRedundant Off Setpoint Sets lead/lag control to redundant o. Switches lead/lag on time. Both systems will never simultaneously
refrigerate, however, lead/lag will switch under certain alarm conditions.
LHA LHA Low Humidity Alarms Humidity below HUMIDITY SP - HUMIDITY DIFF - HUMIDITY ALARM OFFSET for longer than HUMIDITY ALARM DELAY.
LLS LLS LLS/Compressor Contactor Relay Variables Current state of liquid line solenoid (LLS)/compressor contactor relay.
LLt LLt Lead/Lag Time Setpoint Toggle time between lead/lag when (tEt) = (LGC) Redundant Cool or (LGF) Redundant O.
LPA LPA Low Pressure Alarm Alarms [LPCO only] Suction pressure below LOW PRESSURE CUT OUT +PRESS DIFF FOR LPCO despite attempts to run.
LPC LPC Low Pressure Cut Out Setpoint If LPt greater than 0: Low pressure cut-out when low pressure cut-out (LPCO) mode is enabled. LPCO is enabled
when (LPt) is set to a value higher than 0 min.
LPd LPd Press Diff for LPCO Setpoint If LPt greater than 0: Dierential for low pressure cut-in when LPCO mode is enabled.
LOW PRESSURE CUT OUT + PRESS DIFF FOR LPC = low pressure cut-in.
LPt LPt Max Time for LPCO Setpoint If EEV selected: 0 = Disabled. Do not enable unless instructed to by KE2 Therm tech support. Maximum time
allowed to run compressor after entering o or defrost mode. If suction pressure does not reach (LPC) Low
Pressure Cutout in this time will lead to (Pdt) Pump Down Timeout alarm.
LSH LSH Low Superheat Alarm Alarms Superheat below 3°F for 5 minutes, and, if EEV valve < 10% open.
LtA LtA Low Temperature Alarm Alarms Air temp below ROOM TEMP - LOW TEMP ALARM OFFSET longer than LOW TEMP ALARM DELAY.
ntP ntp Time Server Comm Alarm Alarms Controller cannot communicate with external time of day server (SNTP server).
oFF oFF Off System
Mode System has satised on temperature.
oFF oFF Defrost Heaters Off Auxiliary
Input Defrost Interlock is active on the Auxiliary Input, defrost heaters forced o (oFF).
oFF oFF Off (Lead/Lag) Setpoint Option for Multi Evap Mode (tEt) setpoint. (oFF) lead/lag control is disabled.
oni on
i
Monitor Temp Auxiliary
Input Monitor Temp as measured by the Auxiliary Input.
oPn oPn Valve % Open Variables Percentage the EEV is open (only available if EEV is selected).
oPn oPn Open Setpoint Option for Aux Input State (A1A, A2A, A3A) setpoints. Input will be Active when it reads an open circuit.
ott ott Timer Override Input Variables When input is active energizes Timer Relay.
PAd PAd Paired Defrost Mode Setpoint Select operation when lead/lag pair controller goes into defrost. (oFF) O, paired controller will stay o. (AUt)
Auto, paired controller will refrigerate based on room temp.
PAR PAr Pair L/L Setpoint Press and hold ENTER until red LED blinks. (PAS) successful pairing. (FAi) pairing failed. Only two controllers can
be present on network.
PAS PAS Web password reset Setpoint Press and hold ENTER to reset the web username and password to the factory default "ke2admin".
Pbt pbt Panic Button - HELP Alarms Combo Display panic button is active. Press and hold panic button again to clear.
Pdt Pdt Pump Down Timeout Alarms [LPCO only] LOW PRESSURE CUT OUT TIME exceeded before suction pressure reached LOW PRESSURE CUT OUT.
PEr PEr Permanent Fan Setpoint Option for Refrig Fan Type (rFt) setpoint. (PEr) permanent forces fans to run during o cycle.
PLS PLS Pulse Valve Setpoint Pulse Width Modulation (PWM) type expansion valve (changed from PUL in v2.05).
PnH PnH Firmware Partnumber 1 Variables First three digits of rmware PN.
PnL PnL Firmware Partnumber 2 Variables Last three digits of rmware PN.
PrF PrF Process Failure Alarms KE2 Basic Display not able to communicate with controller.
Prn Prn Permanent Setpoint Option for Electric Defrost Mode (Htn) setpoint. Applies if DEFROST TYPE = ELE. Permanent (Prn) forces the defrost
relay to stay energized during the entire defrost cycle.
PrS PrS Suction Pressure Variables Suction pressure measured by the controller (only available if suction pressure transducer used).
PSA PSA Pressure Sensor Alarm Alarms Suction pressure sensor is shorted, open, or pressure out of range.
PUL PUL Pulse Setpoint Option for Electric Defrost Mode (Htn) setpoint. Applies if DEFROST TYPE = ELE. Pulse (PUL) uses the advanced
defrost algorithm to manage the defrost relay during the defrost cycle.
rEF rEF Refrigeration System
Mode System is currently in Refrigeration mode.
rFG rF
G
Refrigerant Setpoint Refrigerant used. See table on page 12.
rFt rft Refrigeration Fan Type Setpoint Select evaporator fan management. (CYC) cycle, i.e. manage, fans during refrigeration and o cycle. (FoC) fans
on w/ compressor will primarily manage fans only during the o cycle. (PEr) permanent forces fans to run dur-
ing refrigeration and o cycle. (t24) Title 24 cycles fans based on California's Title 24 regulations.

Q.1.45 October 2022
Page 17
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
Alphabetical List of Abbreviations - (Continued)
Abbreviaon Full Name Type Descripon
rnt rnt Compressor Run Time Setpoint Option for Defrost Initiation Mode (ind) setpoint. (rnt) Compressor Run Time, system will defrost after a set
number of cumulative hours of run time.
rS r5 RSV Valve Type Pre-congured EEV selection. (RSV) KE2 Therm’s Refrigeration Stepper Valve.
rtP rtp Room Temp Variables Walk-in freezer or cooler room temperature (TAir Sensor) as measured by the controller.
rtP rtp Room Temp Auxiliary
Input Room temp as measured by the Auxiliary Input.
SA SA KE2 SmartAccess Setpoint Turn KE2 SmartAccess on or o. (EnA) enable KE2 SmartAccess. (diS) disable KE2 SmartAccess.
SAt SAt Saturation Temp Variables Saturation temperature as calculated by the controller (requires suction pressure transducer and T1 suction
temperature sensor).
SCC SCC Short Compressor Cycle Alarms [LPCO only] Compressor started excessive number of times due to suction pressure in o mode, or compressor
cut-out excessive number of times due to suction pressure while in refrigeration mode.
SCH SCH Scheduled Defrost Setpoint Option for Defrost Initiation Mode (ind) setpoint. (SCH) Scheduled, system will defrost a set number of times
per day, spaced evenly throughout the day. Other options are (dnd) Demand Defrost, and (rnt) Compressor
Run Time.
SEi SE
i
SEI Valve Type Pre-congured EEV selection. 12 VDC Bipolar Sporlan EEV with 1,600 max steps, 200 steps/second.
SEr SEr SER Valve Type Pre-congured EEV selection. 12 VDC Bipolar Sporlan EEV with 2,500 max steps, 200 steps/second.
SHt SHt Superheat Variables Superheat as calculated by the controller (requires suction pressure transducer and T1 suction temperature
sensor).
SoF SoF System Off Switch Auxiliary
Input
Option for Auxiliary Input. When inactive (Son), system runs as normal. Active (SoF), system enters pumpdown
mode and will not refrigerate or defrost until cleared.
SoF SoF System Off System
Mode System o has been activated from the display, or by an external signal to an Auxiliary Input.
Son Son System Off Switch - System On Auxiliary
Input System O Auxiliary Input is Inactive (Son), system runs as normal.
SSA SSA Suction Sensor Alarm Alarms Suction temp sensor is shorted or open.
Stt Stt Superheat Setpoint When EEV selected, target superheat value. When mechanical valve selected, high superheat alarm threshold.
SUt SUt Suction Temp Variables Suction Temperature as measured by controller.
SYS S
Y
SSystem Mode Variables Current operating status.
tr t r Timer Relay Variables Current status of Timer Relay.
t2F t2F 2nd Room Temp Setpoint Off Auxiliary
Input 2nd Temp Auxiliary Input is Inactive (t2f). System is controlling to the regular Room Temp setpoint.
t2n t2n 2nd Temp Switch Setpoint On Auxiliary
Input 2nd Temp Auxiliary Input is Active (t2n). System is controlling to the 2nd Room Temp Setpoint.
tHr tHr Mechanical Valve Type Thermostatic Expansion Valve in the Expansion Device Type (Edt) setpoint.
t24 t24 Title 24 Setpoint Option for Refrig Fan Type (rFt) setpoint. (t24) Title 24, cycle fans to comply with California Title 24 regulations.
tEt tEt Multi Evap Mode Setpoint Lead/lag mode. (oFF) O, lead/lag disabled. (LGC) Redundant Cool, time based lead/lag with backup system
controlling to 2nd Room Temp. (LGF) Redundant O, time based lead/lag with backup system always o. (ALt)
Alternate, lead/lag system will switch after every refrigeration run cycle.
tS tS Room Temp SP Setpoint Room temperature to be maintained (cut-out temperature).
tS2 tS2 2nd room temp SP Setpoint If AU1, AU2, or AU3 = (t2n) 2ND ROOM TEMP: This value becomes the ROOM TEMP setpoint when the Auxiliary Input is
active.
UAd UAd Humidity Alarm Delay Setpoint Delay before triggering High/Low Humidity alarm once humidity is out of range.
UAo UAo Humidity Alarm Offset Setpoint Oset added & subtracted above/below Humidity Target & Humidity Dierential for High/Low Humidity
alarms.
Unb Unb Unbond Setpoint Press and hold ENTER until red LED blinks. Controllers will unbond and restart. Only works if bonded to one
other controller.
UnP UnP Unpair L/L Setpoint Press and hold ENTER until red LED blinks. (PAS) successful unpairing. (FAi) unpairing failed.
Unt Unt Temperature Units Setpoint Option for Temp Units (Unt) setpoint. (FAH) Fahrenheit. (CEL) Celsius.
USt USt Max Superheat Setpoint Maximum allowed superheat for humidity control.

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 18
KE2 EvapOEM
Quick Start Guide
Introduction to KE2 SmartAccess
KE2 SmartAccess provides quick and easy real time access to your refrigera-
tion systems, 24/7.
Now it’s easier than ever to monitor and adjust your KE2 Evap OEM re-
motely. While the KE2 Evap OEM's webpages can be accessed via tradi-
tional IT techniques, many customers prefer the simplicity and conve-
nience of KE2 SmartAccess.
Once the controller is provided Internet access and KE2 SmartAccess is
enabled, the controller quickly connects to your personal web portal.
Hosted by KE2 Therm, the portal provides a customized dashboard of all
the controllers you setup with KE2 SmartAccess, for a nominal monthly
fee. No port forwarding or VPN required.
Preliminary Setup
Connect your KE2 Evap OEM to the existing network directly, or, add a KE2-
Edge Manager Plus (KE2-EM Plus) & KE2 Switch to manage the refrigeration
network if you need any of the following:
KE2-EM Plus
• Bridge to existing Wi-Fi for Internet instead of running cable
• One year+ of detailed datalogs and graphs (@ 15 minute interval)
• Local dashboard of up to 35 KE2 Therm devices on location
• Add KE2 Therm Wireless Sensors to monitor additional spaces
• Incorporate existing KE2 Therm devices at site
• Local Wi-Fi access for service
• BACnet/IP integration
NONC
COM
EARTH
Cat5e Cable
KE2 Evap OEM directly connected
to Customer Network
NONC
COM
EARTH
KE2 Evap OEM with KE2 Edge Manager - Single or Multiple Controllers (up to 35)
Convienient local Wi-Fi access for service
Additional data logging, graphs, local dashboard
Connect to customer network via Wi-Fi
Quickly setup remote access for multiple devices at once through EZ Setup
or
1 2 3 654 7
Link/ACT
100/1000Mbps
POWER
Customer Network Internet
KE2 Smart Access
KE2 Edge Manager
Add KE2 Switches for multiple Controllers
Plug into LAN
1 2 3 654 7
Link/ACT
100/1000Mbps
POWER
Customer Network Internet
KE2 Smart Access
youtube.com/ke2thermVISIT OUR YOUTUBE CHANNEL FOR VIDEOS ON KE2 SMARTACCESS.
Enable KE2 SmartAccess in the Setpoints
menu
After the initial Introduction Mode setup, press and hold
BACK
until tS appears.
Presstwo times to view SA (abbreviation for KE2
SmartAccess). Press
ENTER
, then pressto change d
i
S
(disabled) to EnA (enabled).
Press and hold
ENTER
for 3 seconds to save the change.
NOTE: Enabling SA also enables dHC (DHCP client mode)
Go to smartaccess.ke2therm.net
Using your PC, tablet, or smartphone, enter
http://smartaccess.ke2therm.net in the web browser’s
address bar.
Enter default information and click Log In button
Site: installer
Password: controller’s MAC address (from sticker on controller,
all capital including colons).
KE2 SKU#:21698 IP: 10.10.52.19
KE2 Evap OEM Controller
MAC: 00:04:A3:14:E5:92 SN: 20212-114
thermsolutions
®
installer
Step ❶
KE2 SmartAccess with direct connection to network -
Online Access in 3 Easy Steps
KE2 SmartAccess setup with KE2-EM
Please follow the KE2-EM Plus Quick Start Guide that comes with the KE2-EM
to complete the EZ SETUP, or visit the link below for a digital copy:
https://ke2therm.com/literature/literature-ke2-edge-managers/
Once logged in, clicking on the controller allows access to
the controller's built-in webpages. Navigate to Setpoints ->
Communications -> KE2 SmartAccess and change the Site and
Password to something unique (Site Example: MyStore-04CD).
Follow best practices for password creation. Setting multiple
controllers to the same Site and Password will cause them all to
appear on a single KE2 SmartAccess dashboard for easy access
and monitoring. See Q.1.46 Web Screens for more details on ev-
erything available on the KE2 Evap OEM's built-in webpages:
https://ke2therm.com/literature/literature-ke2-evap-oem/
Step ❷
Step ❸

Q.1.45 October 2022
Page 19
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
1.5 in.
37 mm
2.8 in.
70 mm
3.1 in.
78 mm
1.1 in.
29 mm
0.73 in.
18 mm
1.0 in.
25 mm
2.8 in.
71 mm
Panel Cutout
1.1 in.
29 mm
KE2 Basic Display Dimensions
1.5 in.
37 mm
2.8 in.
70 mm
3.1 in.
78 mm
1.1 in.
29 mm
0.73 in.
18 mm
1.0 in.
25 mm
2.8 in.
71 mm
Panel Cutout
1.1 in.
29 mm

© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.45 October 2022
Page 20
KE2 EvapOEM
Quick Start Guide
Displays
Part # Description
21232 KE2 Basic Display w/ 18" cable
21324 Snap track - 11.2"
21877 KE2 Combo Display (w/ junction box, battery, 25' cable)
21320 KE2 Combo Display (no accessories or junction box)
21786 Combo Display - 25 ft. Cable
21320 Combo Display - Junction Box
21781 9V Rechargeable Battery for Combo Display
Pressure Transducer
Part # Description Lead Length
20201 Pressure Transducer – 0 to 150 psia 10 ft.
20204 Pressure Transducer - 0 to 150 psia 40 ft.
Sensors
Part # Description Lead Length
21151 Temperature Sensor Pack - Yellow, Green, Blue 15 ft.
21066 Temperature Sensor Pack - Yellow, Green, Blue 40 ft.
20199 Temperature Sensor - Black 10 ft.
21795 Temperature Sensor - Yellow 10 ft.
21793 Temperature Sensor - Green 10 ft.
21794 Temperature Sensor - Blue 10 ft.
20200 Temperature Sensor - Black 40 ft.
20651 KE2 Humidity Sensor 40 ft.
RSV - Refrigeration Stepper Valves
Valve Body Part # Connections - Inches ODF
Inlet x Outlet
Lead
Length
RSV-10 0 21667 3/8 x 1/2 5 ft.
RSV-10 0 21665 3/8 x 1/2 10 ft.
RSV-10 0 21666 3/8 x 1/2 40 ft.
RSV-130 21169 3/8 x 1/2 5 ft.
RSV-130 21161 3/8 x 1/2 10 ft.
RSV-130 21162 3/8 x 1/2 40 ft.
RSV-220 21170 3/8 x 1/2 5 ft.
RSV-220 21163 3/8 x 1/2 10 ft.
RSV-220 21164 3/8 x 1/2 40 ft.
RSV-320 21171 3/8 x 1/2 5 ft.
RSV-320 21165 3/8 x 1/2 10 ft.
RSV-320 21166 3/8 x 1/2 40 ft.
RSV-320 21172 1/2 x 1/2 5 ft.
RSV-320 21167 1/2 x 1/2 10 ft.
RSV-320 21168 1/2 x 1/2 40 ft.
RSV-400 21529 5/8 x 7/8 15 ft.
RSV-400 21530 5/8 x 7/8 40 ft.
RSV-550 21594 5/8 x 7/8 15 ft.
RSV-550 21595 5/8 x 7/8 40 ft.
RSV-650 21779 5/8 x 7/8 15 ft.
RSV-650 21778 5/8 x 7/8 40 ft.
RSV-C10 Stator 21149 For RSV-100 to 320 10 ft.
RSV-C40 Stator 21150 For RSV-100 to 320 40 ft.
RSV-LC15 Stator 21525 For RSV-400 to 650 15 ft.
RSV-LC40 Stator 21526 For RSV-400 to 650 40 ft.
Replacement Relays
Part # Description
21373 Replacement Fan Relay (Form A)
21374 Replacement LLS Relay (Form C)
Replacement Fuse
Part # Description
21375 Replacement Fuses (5 pcs), 1 Amp, 250V ceramic
External Relays
Part # Description
21304 Solid State Relay for 0/10 VDC Alarm Output
21469 120V Mechanical Relay (for dry contact alarm output)
21470 240V Mechanical Relay (for dry contact alarm output)
Communications
Part # Description
21902 KE2-EM Plus
21920 KE2-EM Plus (w/ BACnet/IP)
21924 KE2-EM Plus Mounting Bracket
20166 KE2 Switch - 8 Port Ethernet Switch
21011 KE2 Switch - 16 Port Ethernet Switch
Accessories
Panel Kits
Part # Description
21958 KE2 Evap Panel (Single): Includes a single KE2 Evap OEM controller mounted in UL-508 panel, (3) 40’ color temperature sensors &
terminal board.
21959 KE2 Evap Panel (Double): Includes two KE2 Evap OEM controllers mounted in UL-508 panel, (6) 40’ color temperature sensors & (2)
terminal boards. For Lead/Lag control or control of two evaporators.
21999 KE2 Environment Panel: Includes a single KE2 Evap OEM controller and Aux Humidity Board mounted in UL-508 panel, (3) 40' color
temperature sensors, 40' humidity sensor & terminal board.
22006 KE2 Humidity Panel: Includes a single KE2 Humidity Board mounted in UL-508 panel & 40' humidity sensor. For adding to existing KE2 Evap
OEM install. Requires KE2 Evap OEM.
Auxiliary Boards
Part # Description
22003 KE2 Humidity Control (board only)
21323 Aux Relay Board