© 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. Conrm 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. Pressto
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.
