KE2 Therm Solutions EvapPanel User manual

thermsolutions
© Copyright 2023 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapPanel
Quick Start Guide Q.1.77 February 2023
This reference should remain on site
with the installed KE2 Evap Panel.
Controller Webpages
The controller has a built-in webpage for service.The webpage can
be accessed multiple ways, including: plugging the controller into
a KE2 Therm communication accessory like the KE2-Edge Manager
(KE2-EM), connecting the controller to a network/provide it
internet access, using the KE2 Service Tool App with an Ethernet
dongle, or by plugging a laptop directly into it.
Once on the webpage, logging in is required to make changes.
The defaults are: User Name: ke2admin Password: ke2admin
IMPORTANT: The password MUST be changed from the default
upon logging in for the rst time for security purposes.
Parts List
Kit #21958 KE2 Evap Panel (Single)
Kit #21959 KE2 Evap Panel (Double)
The following parts are included:
(1) KE2 Evap Panel
(3) 40’colored temperature sensors
(1) KE2 Terminal Board with fuses
(2) ½”plastic knockout plugs
(1) air sensor mount
(4) wire ties (rated for low temp)
(1) 2’Ethernet cable
❶21959 contains (2) KE2 Evap OEM controllers & displays, (6) 40’ colored temperature sensors,
(2) KE2 Terminal Boards, (4) ½” plastic knockout plugs, (2) air sensor mounts, and (8) wire ties.
❷Only in 21959.
D
E
B
A
C
G
F
NOTE:
All sensors can be used
for any purpose and
are interchangeable,
colors are for ease of
identication only.
A
C
D
E
F
G
B
Basic accessories for the controller are included, however, certain truck
stock items are required to complete the installation.
V Conduit to go between the controller and the evaporator (high &
low voltage).
V Conduit connectors (straight or elbow as required).
V High voltage wires matched to the load of the heaters, fans, liquid
line solenoid, and the controller (for ease of install consider using
the KE2 Wire Harness accessory).
V Spade Connectors matched to the gauge of the high voltage wires.
V Wire labeling (numbers, colors, etc.).
V Additional wire ties.
V 18 gauge twisted shielded pair, if extending sensor wires.
V Foam insulation, if running wires outside the space.
V Silicone (for sealing any box penetrations).
Popular Accessories
The following parts are available separately:
V KE2 Wire Harness - 10’pn 20736, 25’pn 20670, 40’ pn 20737
V Door Switch - pn 20543
Further information on accessories can be found in the KE2 Condensed Catalog 411.
Supplies List
Installation Steps
Installation consists of mounting the panel, wiring the high voltage connections, wiring the low voltage connections (sensors, transducer & EEV if
used), and inputing the initial setpoints.
Additional Literature
Please visit:
https://ke2therm.com/literature/literature-ke2-evap-oem/
— OR —
use this QR code
Video 068 How to Determine Proper Coil Sensor
Location
Video 069 How to Properly Install a Coil Sensor
Visit our YouTube channel for videos
on installation and setup.
youtube.com/ke2therm

Q.1.77 February 2023
Page 2
© Copyright 2023 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapPanel
Quick Start Guide
NO NC
COM
TSuc (Suction Temp)
Aux3
Aux2
Aux1 (2nd Coil Temp)
TCoil (Coil Temp)
TAir (Return Air Temp)
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*
Chassis
Ground*
Fuse
NO
COM (L2)
+
–
+
–
*Use only chassis
ground or spade
connector ground.
**Requires PN 21034 Solid State Relay (NO) or
PN 22005 Solid State Relay (NC) depending on purpose.
Additional wiring/relays may be required.
TSC1A250-1A
1A 250V
slow blow
5mm x 20mm
(only for Aux Relay Board or KE2 Humidity Control)
2 4 68
1 0
1 0
2 4 68
3 7
High Voltage Wiring - Wiring Schematic w/ KE2 Terminal Board & Wiring Harness
Return Air
2/3 down from top
12” minimum
8-12”
8-12”
COM NO
NC
COM NO
NC
L1 L2
KE2 Evap OEM
Power Input
Fan Relay
Defrots Relay
“Comp” Relay
COM NO
NC
Defrost
Heat
Evaporator
Fan Motors
Liquid Line
Solenoid
We recommend standardizing for all installations
Green (Aux1) &
Yellow (TCoil) for Coil Sensors
Blue (TAir) for Air Sensor
Sensor Installation - Return Air Temp Sensor
Install the air temp sensor using the air sensor
mount E, approximately 2/3 down from the
top of the evaporator, and 8 - 12 inches from
coil in the return air of the evaporator.
E
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
Supply Voltage
Fan
Motor
Fan
Motor
Fan
Motor
Evaporator Fans
Heater Safety/High Limit Switch
Defrost Heaters
Liquid Line Solenoid
N.C.

Q.1.77 February 2023
Page 3
© Copyright 2023 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapPanel
Quick Start Guide
Verify where frost is last to
disappear (often on air exiting side).
Item from Parts List on page 1.
D
Sensor Installation - Coil Temp Sensors
IMPORTANT: Determine coil sensor locations
When arriving on site, put the system into defrost, verify all heating
elements are working properly, and observe where frost is last to
disappear on the coil. Place one sensor in each of the last two places
where frost disappears ❶.
Monitor the evaporator’s air entering and exiting sides. Often the last
place frost disappears is on the air exiting side, approximately 1”to 1-1/2”
away from the right and left edges of the active coil surface, near the
top or bottom 1/3rd of the evaporator, as far away from the defrost heat
sources as possible. Ice tends to grow from the edges inward, but verify
coil sensor locations by observing an actual defrost. Do not install coil
sensor on the U-bends.
To prevent sensor wire damage from sharp edges, insert plug (D) into
coil housing - ❷. Plug is inserted in the inner housing to access the coil.
Puncture plug to insert sensor wire.
For most applications, the sensor should rest against a circuit tube in
between the evaporator ns ❸. Position the sensor vertically between
the coil ns. Pinch ns together gently all around the probe, securing the
sensor. This also provides thermal ballast, ensuring a complete defrost.
Don’t locate the sensor next to heating elements or insert the sensor too
far into the coil. Leave a handloop for service in-case the sensor must be
repositioned.
After the sensors are installed, route the sensor cables back to the control-
ler. Do not induce noise on the wires by running the sensor cables near
high voltage lines.
If the cables must be extended, use 18 gauge twisted shielded pairs. Max
recommended length for 18 gauge: 100ft.
Intro Mode
❶
❷
The controller will enter Intro Mode the rst time power is applied. Intro
Mode consists of as little as 4 setpoints that must be congured to begin
controlling the system.
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 Valvle (EEV)
Ad Ad Air Defrost with Mechanical TEV
EdE EdE Electric Defrost with Electric Expansion Valve (EEV)
2. If AdE or EdE was selected, the controller asks for the Expansion Valve
Type and displays rS. Press or to scroll through the available
expansion device types. With the correct EEV displayed, press and hold
ENTER for three seconds.
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 SEi 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.
NOTE: Custom valve setups are available via the webpage interface or KE2 Combo Display.
*Requires PN 21304 Solid State Relay N.O.
3. If AdE or EdE was selected, the refrigerant must also be selected. Press
or to scroll through the available refrigerants. Press and hold
ENTER to save a selection.
Refrigerants
Abbreviation Full Name Abbreviation Full Name
404 404 R-404A 408 408 R-408A
458 458 R-458A 438 438 R-438A
452 452 R-452A 717 717 R-717
513 513 R-513A r22 r22 R-22
450 450 R-450A 134 134 R-134a
449 449 R-449A 42d 42D R-422D
448 448 R-448A 42A 42A R-422A
744 744 R-744 40C 40C R-407C
410 410 R-410A 40A 40A R-407A
407 407 R-407F 507 507 R-507
409 409 R-409A
4. The nal prompt is to set KE2 SMARTACCESS to ENABLED or
DISABLED. KE2 SmartAccess allows you to easily view and modify
your controllers online. Press or to make your selection, then
press and hold ENTER .
Note: If a KE2-Edge Manager (KE2-EM) is on site, select DISABLED for
KE2 SmartAccess.
❸

Q.1.77 February 2023
Page 4
KE2 Therm Solutions
12 Chamber Drive . Washington, MO 63090
1.888.337.3358 . www.ke2therm.com
© Copyright 2023 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.77 February 2023 supersedes all prior publications.
KE2 EvapPanel
Quick Start Guide
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 FLASHING Waiting on min. run or min. o timer to energize or de-energize LLS relay.
V Access the setpoint menu by pressing and holding BACK until tS (temperature setpoint) displays on the screen.
V Press or to scroll through available setpoints.
V Press ENTER to view the current setting.
V Press or to change the setpoint. Press ENTER momentarily to move between digits to accelerate the changes.
V Press and hold ENTER to save setpoint changes.
V Press BACK to escape.
VARIABLES MENU
rtP ROOM TEMP
CLt COIL TEMP
SYS SYSTEM MODE
SHt SUPERHEAT
PrS SUCTION PRESSURE
SUt T1 SUCTION TEMP
SAt SATURATION TEMP
oPn VALVE % OPEN
LLS LLS RELAY
dEr DEFROST RELAY
FAr FAN RELAY
AU1 AUX1 STATUS
AU2 AUX 2 STATUS
AU3 AUX 3 STATUS
iP1 IP OCTET 1
iP2 IP OCTET 2
iP3 IP OCTET 3
iP4 IP OCTET 4
PnH FIRMWARE PARTNUM
PnL FIRMWARE PARTNUM
Fir FIRMWARE VERSION
SETPOINTS MENU
tS ROOM TEMP SETPOINT
rFG REFRIGERANT
dtY DEFROST TYPE
Edt VALVE TYPE
ind DEFROST MODE
dPd DEFROST / DAY
dtP DEFROST TERM TEMP
dEF DEFROST PARAMETER
dtL MAX DEFROST TIME
drn DRAIN TIME
rFt REFRIG FAN TYPE
FtS MIN FAN SWITCH TIME
Stt SUPERHEAT SETPOINT
LPt MAX TIME FOR LPCO
HTn ELECTRIC DEFROST MODE
HAo HIGH TEMP ALARM OFFSET
HAd HIGH TEMP ALARM DELAY
LAo LOW TEMP ALARM OFFSET
LAd LOW TEMP ALARM DELAY
dAd DOOR ALARM DELAY
AU1 AUX IN 1 MODE
A1A AUX IN 1 STATE
AU2 AUX IN 2 MODE
A2A AUX IN 2 STATE
AU3 AUX IN 3 MODE
A3A AUX IN 3 STATE
tS2 2ND ROOM TEMP
10t 0 TO 10 VDC MODE
tEt MULTI EVAP MODE
PAd PAIRED DEFROST MODE
LLt LEAD/LAG TIME
Unt TEMP UNITS
EdF EXTREME TEMP DIFF
CLA CLEAR ALARMS
diA DIAGNOSTICS MODE
FAC FACTORY RESET
PAS WEB PASSWORD RESET
PAr PAIR L/L
UnP UNPAIR L/L
SA SMART ACCESS
dHC DHCP
See Q.1.45 for setpoint descriptions.
Press and hold BACK for
3 seconds to enter the
Setpoints Menu
ALARMS (abbreviated)
PSA PRESSURE SENSOR
SSA SUCTION TEMP SENSOR
ASA AIR TEMP SENSOR
CSA COIL TEMP SENSOR
HSH HIGH SUPERHEAT
LSH LOW SUPERHEAT
HtA HIGH AIR TEMP
LtA LOW AIR TEMP
EdF EXCESS DEFROST
dtt DEFR TERM ON TIME
dor DOOR SWITCH
CoA COMMUNICATION ERROR
A1A AUX 1 SENSOR
CLL LEAD/LAG COMM ERROR
See Q.1.45 and Q.1.61 for full list of alarms.




Menu Navigation
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 several minutes of electric defrost before fans
turn o and heaters are energized.
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.
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.
Bonding/Pairing
See Q.1.45 and Q.1.45-A for setup of multiple evaporator & lead/lag
controllers.
https://ke2therm.com/literature/literature-ke2-evap-oem/
When not in the Setpoints
Menu, press or to view
variables & alarms (if any)