KE2 Therm Solutions 20844 User manual

Parts List
The following parts are included in the
KE2 Evaporator Eciency (KE2 Evap) controller kits:
Kit #20178 with 120/208-240 VAC controller
Kit #20844with 120/208-240 VAC controller
Kit #20631with 120/208-240 VAC controller
Kit #20222Beacon® I & II replacement controller
(1) KE2 Evaporator Eciency controller
(1) high voltage safety shield
(3) 15’ colored temperature sensors 
(4) 90 degree quick disconnects
(5) self-tapping screws
(2) course thread screws (1) ne thread machine screw with
lock washer
(1) KE2 Terminal Board with fuses
(1) KE2 Evap Navigation sticker
(2) 1/2” plastic knockout plugs
(4) wire ties (rated for low temp)
(1) Air sensor mount
(1) 5-position pluggable connector (for EEV)
(4) 3-position pluggable connectors (for power in, transducer
and 3A relay)
(9) 2-position pluggable connectors (for sensors and digital
input, analog output)
(1) 120 Voltage jumper
(1) 208-240V Voltage jumper (already installed on KE2 Evap)
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.3
November 2017
KE2 EvaporatorEfciency
Quick Start Guide
Supplies List
The KE2 Evap is supplied with all of the accessories required for the con-
troller to work, however, standard truck stock items will also be required
to install the controller. A list of items is provided.
Conduit to go between the controller and the evaporator
(2) Conduit connectors (straight or elbow as required)
(11) High voltage wires matched to the load of the heaters, fans, liquid
line solenoid, alarm (if used), and the controller.
(8) Spade Connectors matched to gauge of high voltage wires
Wire labeling (numbers, colors, etc.)
Additional wire ties
18 gauge twisted shielded pair (if extending sensor wires)
Foam insulation if running wires outside the space.
Silicone (for sealing any box penetrations)
Popular Accessories
The following parts are available separately:
Wire Harness- 10’ pn 20736, 25’ pn 20670, 40’ pn 20737
Mounting Box pn 20687
Door Switch pn 20543
Buzzer pn 20972
Buzzer & Light Combo pn 20973
Further information on accessories can be found in KE2 Condensed Catalog 411.
This reference should remain on site with the installed KE2 Evaporator Eciency controller.
A
C
D
E
F
G
H
I
J
K
L
M
N
B
O
P
20844 KE2 Ultimate Install kit includes KE2 Mounting Box pn 20687 and 40’
colored temperature sensors
20631 kit does not include temperature sensors
20222 Beacon® kit includes an extra temperature sensor, and pressure
transducer with cable.
Now with
KE2 Smart Access!
Get your controller
online in 3 easy steps.
See page16
L M N
DE
OP
F
B
Left Arrow & Right Arrow
Use to move between Menus columns
Up Arrow & Down Arrow
Scroll through Menu Parameters
ENTER
Press and hold ENTER for 3 seconds, when
display is blinking changes can be made.
BACK
Press BACKto return to the previous view.
Press and hold ENTER for 3 seconds.
Change settings:
Save changes:
Moving through controller menus:
Return to Main Menu:
Lights: Red - critical alarm (system not running)
Yellow- non-critical alarm (system running)
Green - compressor should be on
- compressor waiting on timer to start/stop
ENTER
Press ENTER to go from parameterto value.
Togglebeween
description & value :
Menu Layout:
Variables Manual*
(viewonly)
Alarms
(viewonly)
ENTER
Setpoints Enter
Password
NOALARM
EMAILFAILURE
ROOMTEMP
DERIVATIVE
ROOMTEMP
FIRMWARE VERSION
MANUALCONTROL
CLEARMD
Controller Navigation
ENTER
ENTER
BACK
Press BACK3 - 4 times
If youlose your place:
*For manual defrost use MANUAL CONTROL
BACK
24-hour Emergency Support: 1.888.337.3358 www.ke2therm.com
pn21061 9-14
AC
G H
IJ
K
NOTE: All sensors can be
used for any purpose and
are interchangeable,
colors are for ease of
identication only.
Video 046 How to Wire the KE2 Evap Controller
Video 033 How to Conrm the KE2 Evap is Wired Correctly
Video 068 How to Determine Proper Coil Sensor Location
Video 069 How to Properly Install a Coil Sensor
Video 032 Initial Defrost Sequence: KE2 Evap & KE2 Adaptive Control
Video 012 How to Navigate the KE2 Evap Controller
Video 020 KE2 Evap Scrolling Text - Initiate Manual Defrost
Video 017 KE2 Evap Scrolling Text - Change Room Temp Setpoint
Video 040 Congure the KE2 Evap for a Door Switch from the Front Panel
youtube.com/ke2therm
Visit our YouTube channel for videos
on KE2 Evap installation and setup.

© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.3 November 2017
Page 2
KE2 EvaporatorEfciency
Quick Start Guide
Subcooling - There should be a solid column of liquid at the inlet of the valve.
This can be veried by looking at the sight glass, however, the proper method
requires measuring the subcooling of the liquid entering the valve.
Verify Temperature Dierence
A typical Temperature Dierence (TD) between the coil temperature and the
air temperature is between 5 and 15°F. An insucient TD, between the coil
and air temperature, indicates a system issue that needs to be addressed be-
fore installing the KE2 Evap.
Understanding Frost
The air exiting side of the evaporator is often the coldest spot on the coil due
to the load aecting the temperature. As air travels through the ns of the
evaporator, the Relative Humidity will reach 100%. Moisture will begin to
drop out of the air, and deposit on the coil surfaces to form frost. Although
frost typically has a negative connotation when discussed in refrigeration, ini-
tial frost formation has a positive eect, due to increased surface area of the
tubes, which increases air velocity through the ns. It is not uncommon to see
a small amount of frost on the coils that have KE2 Evap controllers installed.
The KE2 Evap is continually measuring, monitoring, and managing the frost
to assist in maximum energy eciency. When the eciency of the coil is re-
duced due to excessive frost, the KE2 Evap will initiate a defrost.
Arriving at the Jobsite
When arriving at any jobsite, it is good practice to verify the correct operation
of the system. Even systems running for a considerable amount of time with-
out requiring a service call may not be running properly.
Inspect the coil to see the current frost pattern. If the unit has not recently
performed a defrost, look for the heaviest area of frost. This will be used to
locate the coil sensor.
Installers should account for a full system diagnostic in the installation esti-
mate for the controller.
Although it may seem unnecessary, identifying system issues before the con-
troller is installed will save time overall. It will also allow the controller to pro-
vide the highest energy savings.
Verify the system is running correctly. Taking several measurements will help
determine the current health of the system.
Two of the most critical indicators of system health are the superheat
and subcooling.
Superheat - Superheat is the most overlooked ineciency in existing sys-
tems. Typically the superheat on a mechanical thermostatic expansion valve
(TEV) is set when there is no product in the controlled space, if it is set at all.
When applying the controller to an existing system with a mechanical ex-
pansion valve, the superheat should be set to the manufacturer’s recom-
mendation. With an electronic expansion valve (EEV), lower superheat and
improved eciency can be maintained.
KE2EvaporatorEfficiency
TM
thermsolutions
ENTER
BACK
2
2
KE2EvaporatorEfficiency
TM
thermsolutions
ENTER
BACK
2
2
KE2EvaporatorEfficiency
TM
thermsolutions
ENTER
BACK
2
2
At the entrance
On the wall
On the evaporator
11
Determining Controller Location
The controller is designed to be as versatile as possible, and can be installed
inside or outside the controlled space. The location of the controller should
be discussed with the end user to determine if they have a preference, and
in a location convenient for installation by the service provider. Locating the
controller at the entrance to the space typically does not increase the com-
plexity of the wiring, merely the length of the wires.
The controller can also be located at the condenser, but should not be in-
stalled outdoors without an enclosure to protect it from sunlight and mois-
ture (must be within operating range -40°F to 140°F (-40°C to 60°C)

Q.1.3 November 2017
Page 3
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvaporatorEfciency
Quick Start Guide
NO NC
COM
NO NC
COM
COM NC
NO
COM
NC
N0
Solenoid Relay
Defrost
Relay
Fan
Relay
208-240
Power Input
Voltage Jumper
208-240 Default
L1
Ground
L2
COM NC
NO
COM
NC
N0
Auxiliary Relay
Evaporator
?
thermsolutions
ENTER
BACK
®
Efficiency
Evaporator
Pressand hold for
manualdefrost
24-hour
EmergencyTechnical Support
1.888.337.3358
2
2
Cut a length of conduit to go from the controller to the evaporator
Measure the distance between the controller and evaporator to account for
the extra length necessary to properly route conduit.
Determine the number of wires to go to the controller.
Controller power (3 wires)
Fan control (2 wires)
Defrost (heater) control (2 wires)
Liquid line solenoid (2 wires)
If the Aux Relay is used, the installer will need to supply an additional
pair of wires to the controller
Aux relay (2 wires)
Note: Install in accordance with local wiring codes. KE2 Therm does not
accept responsibility for incorrect or unsafe wiring.
22
Cut wires to length
Once the number of wires is determined, cut the wires to length.
The wire should be long enough to account for the necessary connections
in the controller and evaporator.
Use the optional KE2 Wire Harness, or select dierent colored wires, (recom-
mended colors: blue - fan, orange - heaters, yellow - solenoid, purple - alarm).
This will simplify the installation and troubleshooting. If only a single color is
available, both ends of the wires should be labeled with a matching number.
This will save time when wiring the evaporator.
3
Determine the current draw of the unit.
Use the nameplate to determine the Amp rating of the unit, and select the
proper sized wire. Also, verify the unit does not exceed the relay rating on the
KE2 Evaporator Eciency controller.
If the amp draw of the fans, heaters, compressor or aux relay exceeds the
rating of the onboard relays, external contactors must be used. In that
case, the onboard relays are used to switch the power to the contactor
coils. KE2 Therm can provide ready made and tested contactor panels
for various high amperage applications. See Page 9. Contact KE2 Therm
for specic information.
4
4
Preparing conduit
Feed the wires through the conduit.
The conduit connectors can be added at this time. Determine if a straight
or 90 degree connector is most appropriate for the installation, and attach to
the conduit.
Securely connect one end of the conduit to the controller, or mounting
box, if used.
55
Wiring the controller
The controller is pre-congured for 208/230V incoming power by the in-
stalled four-position plug with a single jumper, as shown in Figure 6.
A second plug with two jumpers, as shown in Figure 6, is included in the kit
to convert the controller to 120V incoming power. Simply replace the single
jumper plug with the two jumper plug. See Back View of Controller, page 13.
Power should not be connected to Voltage selector, it is a selector only.
Power for the controller should be connected to the Power In location us-
ing a 3 position connector.
Controller will illuminate display when 120V is applied with 208-240V
selected, however, controller will not function properly.
6
6
120V 208-240V
3

Q.1.3 November 2017
Page 4
KE2 EvaporatorEfciency
Quick Start Guide
Controller Power
The KE2 Wire Harness wires are pre-stripped (if not using the KE2 Wire
Harness, strip the end of the wires used to provide power to the controller).
Locate a 3-position pluggable connector in the parts kit.
Fasten incoming power to the 3-position pluggable connector*.
Plug the 3-position pluggable connector into board as indicated in Wiring
Schematic.
*All terminal screws should be tightened to 5 ft-lbs.
7
Fan Relay WITH the KE2 Wire Harness
The BLUE wires are used for FAN control.
Locate the blue wire with a black stripe, and the black wire with a blue stripe.
Plug the black wire with a blue stripe into the COM terminal of the Fan Relay
Plug the blue wire with a black stripe into the NO position of the Fan Relay
Fan Relay WITHOUT the KE2 Wire Harness
Strip the end of the 2 wires used for fan control.
Locate 2 female spade connectors in the parts kit.
Crimp on the female spade connectors.
Plug the connectors into the COM and NO positions of the Fan Relay.
Conrm combined fan motor load is not over 10 amps
8
Defrost (Heater) Relay WITH the KE2 Wire Harness
The ORANGE wires are used for the HEATER control.
Locate the orange wire with black stripe, and black wire with orange stripe.
Plug the black wire with orange stripe into the COM terminal.
Plug the orange wire with black stripe into the NO position of Defrost Relay.
Defrost (Heater) Relay WITHOUT the KE2 Wire Harness
Strip the end of the 2 wires used for the defrost control.
Locate the remaining 2 female spade connectors in parts kit.
Crimp on the female connectors.
Plug the connectors into COM and NO positions of the Defrost Relay.
Conrm combined heater load is not over 20 amps.
9
NO NC
COM
NO NC
COM
COM NC
NO
COM
NC
N0
Solenoid Relay
Defrost
Relay
Fan
Relay
208-240
Power Input
Voltage Jumper
208-240 Default
L1
Ground
L2
COM NC
NO
COM
NC
N0
Auxiliary Relay
Supply Voltage
8
9
10
11
7
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Yellow with black stripe
16 AWG stripped and retained
Black with yellow stripe (L1)
16 AWG stripped and retained
Blue with black stripe
12 AWG ag connectors
Black with blue stripe (L1)
12 AWG ag connectors
Orange with black stripe
12 AWG ag connectors
Black with orange stripe (L1)
12 AWG ag connectors
Black with white (L1)
16 AWG stripped and retained
White with red (L2/neutral)
16 AWG stripped and retained
Green (Ground)
16 AWG stripped and retained
LLS/Compressor
Defrost Heaters
Fans
Power
Wire Harness Key

Q.1.3 November 2017
Page 5
KE2 EvaporatorEfciency
Quick Start Guide
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Note: Before installing the safety cover, plug in any remaining connectors to
store for future use.
Install Safety cover
Once all of the high voltage wiring is complete, install the metal cover on
the controller.
Locate the cover and 3 small screws from the accessories kit.
Position the cover over the 3 mounting posts.
Using the 2 coarse thread screws attach cover to the plastic posts.
Use the ne threaded machine screw with lock washer to fasten the cover
to the metal post.
Set the controller in a safe place.
12
12
Preparing the Evaporator
The evaporator wiring will require access to the high voltage terminal block
on the coil.
Turn o power to the system.
Verify power is no longer present using a multimeter.
13
13
14
Evaporator wiring
Now that the conduit is prepared, it can be connected to the evaporator.
Locate the proper sized knockout and carefully remove knockout.
Connect conduit to the evaporator
14
Liquid Line Solenoid (LLS)/Comp. Relay USING KE2 Wire Harness
The YELLOW wires are used for LIQUID LINE SOLENOID control.
Locate a 3-position pluggable connector from the parts kit.
Fasten the black wire with yellow stripe into the COM position of the LLS/
Comp Relay.
Fasten the yellow wire with black stripe into the NO position of the LLS/
Comp Relay.
Plug the 3-position pluggable connector into the location as indicated in
the Wiring Schematic.
Liquid /Compressor Relay WITHOUT the KE2 Wire Harness
Strip the end of the 2 wires used to control the Liquid Line Solenoid.
Locate a 3-position pluggable connector from the parts kit.
Fasten the incoming power for the liquid line solenoid to COM position of
the LLS/Comp Relay
Fasten the lead from the liquid line solenoid to the NO position of the LLS/
Comp Relay.
Plug the 3-position pluggable connector into the location as indicated in
Wiring Schematic.
Max relay rating is 3A.
10
Auxiliary Relay
If using the Auxiliary Relay, the installer will need to supply an additional
pair of wires to the controller.
Strip approx. 1/4” of wire insulation on end of the 2 wires, for the auxiliary
device.
Locate a 3-position pluggable connector from the parts kit.
Plug the 3-position pluggable connector into the location as indicated in
the Wiring Schematic.
Max relay rating is 3A.
11

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
NO NC
COM
COM NC
NO
COM
NC
N0
Solenoid Relay
Defrost
Relay
Fan
Relay
208-240
Power Input
Voltage Jumper
208-240 Default
L1
Ground
L2
COM NC
NO
COM
NC
N0
Auxiliary Relay
Supply Voltage
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
®
NO NC
COM
NO NC
COM
COM NC
NO
COM
NC
N0
Solenoid Relay
Defrost
Relay
Fan
Relay
208-240
Power Input
Voltage Jumper
208-240 Default
L1
Ground
L2
COM NC
NO
COM
NC
N0
Auxiliary Relay
FAN
MOTOR
FAN
MOTOR
FAN
MOTOR
EVAPORATOR
FANS
R/W
BL/BK
BK
BL/BK
FROM
CONTROLLER
EC MOTOR
RELAY
Q.1.3 November 2017
Page 6
KE2 EvaporatorEfciency
Quick Start Guide
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Study the existing wiring.
Although the existing terminal board
in the evaporator may be used, it is often
poorly labeled and dicult to wire. KE2
Therm provides a fused terminal board
(Item G in the parts list) that greatly sim-
plies wiring as well as provides addition-
al protection for controller components.
The instructions below are based on the
use of this board.
Determine the location of the following:
incoming power, fan leads, heater leads,
defrost termination leads, and fan delay
leads.
15
Evaporator wiring – Controller
Bring uninterrupted power to L1 and L2/
neutral on the terminal board. Connect
ground to the terminal board.
Strip the end of the wires used to power
the controller.
Attach to the line power to provide con-
tinuous power to the controller.
Connect ground from terminal board to
the controller
Note: Ground is required for the internal
safeties to operate properly.
16
Evaporator wiring – Fans
Strip the ends of the wires (connected
to the KE2 Evap) used to control the
evaporator fans.
The fan wires can be attached to the
terminal block using either screw down
terminals or spade connectors.
Attach one of the wires to the L1/Line.
This wire should be connected to COM of
fan relay on the controller.
Attach the wire connected to the NO
terminal on the Fan Relay to one of the
Fan Terminals on the supplied terminal
board.
Connect the remaining fan lead(s) to
the L2/Neutral position(s) on the termi-
nal board.
17
Power
Black with white (L1)
16 AWG stripped and retained
White with red (L2/neutral)
16 AWG stripped and retained
Green (Ground)
16 AWG stripped and retained
Blue with black stripe
12 AWG ag connectors
Black with blue stripe (L1)
12 AWG ag connectors
Evaporator Fans
17
16

Q.1.3 November 2017
Page 7
KE2 EvaporatorEfciency
Quick Start Guide
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Evaporator wiring – Heater
Strip the ends of the wires being used for
heater control.
The heater wires can be attached to the
terminal block using either screw down
terminals or spade connectors.
18
Evaporator wiring – Liquid Line Solenoid
/Compressor
Strip the ends selected to control the liq-
uid line solenoid.
Attach the wire connected to the NO
terminal on the LL Solenoid/Compressor
relay on the controller, to the fused LL
SOLENOID/COMP terminal on the board,
as shown.
Attach the wire from the COM on the LL
Solenoid/Compressor relay on the control-
ler, to the L1/Line Voltage on the board.
Connect remaining LL Solenoid/
Compressor lead to L2/NEUTRAL terminal
on the board.
20
Remove defrost termination (Klixon®)
from circuitry
Attach the wire connected to the Heater
Relay COM terminal on the controller to
the L1 terminal on the board.
Attach the wire connected to the NO
terminal on the Heater Relay to the fused
HEATERS terminal on the board as shown.
Connect L2/NEUTRAL to the remain-
ing HEATERS terminal as shown using the
HEATER LIMIT SWITCH (or jumper).
The defrost safety should not be removed
from the circuit. Its purpose is to prevent
the heaters from over heating and causing
damage.
19
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
®
NO NC
COM
NO NC
COM
COM NC
NO
COM
NC
N0
Solenoid Relay
Defrost
Relay
Fan
Relay
208-240
Power Input
Voltage Jumper
208-240 Default
L1
Ground
L2
COM NC
NO
COM
NC
N0
Auxiliary Relay
HEATER LIMIT SWITCH
DEFROST HEATERS
R/W
BL/BK
BK
BL/BK
FROM
CONTROLLER
EC MOTOR
RELAY
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
®
NO NC
COM
NO NC
COM
COM NC
NO
COM
NC
N0
Solenoid Relay
Defrost
Relay
Fan
Relay
208-240
Power Input
Voltage Jumper
208-240 Default
L1
Ground
L2
COM NC
NO
COM
NC
N0
Auxiliary Relay
LIQUID LINE SOLENOID
N.C.
R/W
BL/BK
BK
BL/BK
FROM
CONTROLLER
EC MOTOR
RELAY
Defrost Heaters
Orange with black stripe
12 AWG ag connectors
Black with orange stripe (L1)
12 AWG ag connectors
18
Yellow with black stripe
16 AWG stripped and retained
Black with yellow stripe (L1)
16 AWG stripped and retained
LLS/Compressor
20

Q.1.3 November 2017
Page 8
KE2 EvaporatorEfciency
Quick Start Guide
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
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
®
NO NC
COM
NO NC
COM
COM NC
NO
COM
NC
N0
Solenoid Relay
Defrost Relay Fan Relay
208-240
Power Input
Voltage Jumper
208-240 Default
L1
Ground
L2
COM NC
NO
COM
NC
N0
Auxiliary Relay
Yellow with black stripe
16 AWG
Black with yellow stripe
(L1) 16 AWG
Blue with black stripe
12 AWG
Black with blue stripe
(L1) 12 AWG
LLS/Compressor
Fans
Black with white
(L1) 16 AWG
White with red
(L2/neutral) 16 AWG
Green
(Ground) 16 AWG
Power
Orange with black stripe
12 AWG
Black with Orange stripe
(L1) 12 AWG
Defrost Heaters
Supply Voltage
FAN
MOTOR
FAN
MOTOR
FAN
MOTOR
EVAPORATOR
FANS
HEATER LIMIT SWITCH
DEFROST HEATERS
LIQUID LINE SOLENOID
N.C.
R/W
BL/BK
BK
BL/BK
FROM
CONTROLLER
EC MOTOR
RELAY
Wiring Schematic - Controller New Installation
Wiring Schematic - Controller New Installation

Q.1.3 November 2017
Page 9
KE2 EvaporatorEfciency
Quick Start Guide
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Evaporator Fan Motors
Con1 Max HP & Amp Ratings (Total All Fans)
Voltage Max HP Max AMPS
230 3Ø 15 42 460 3Ø 30 40 575 3Ø 30 32
Wiring Schematic - Controller with KE2 Contactor Box
Existing Defrost Heaters Max Current Ratings
(Amps are Total All Heaters)
Relay Box P/N 230V 3Ø460V 3Ø575V 3Ø
20217 54 Amps 52 Amps 52 Amps 20218 68 Amps 65 Amps 62 Amps 20219 80 Amps 77 Amps 62 Amps
Legend
EFM - Evaporator Fan Motor DH - Defrost Header LLS - Liquid Line Solenoid AUX - Auxiliary PT - Pressure Transducer T1 SUCTION - Suction Temperature T2 AIR - Return Air Temperature T3 COIL - Evaporator Coil Temperature T4 AUX - Auxiliary Temperature EEV - Electric Expansion Valve ECM - Electronically Commutated Motor D1 - Digital Input 1 D2 - Digital Input 2 D3 - Digital Input 3 - - - By others
All eld wiring must conform to local codes Contactor ratings per UL508 CSA 22.2
Wiring Schematic - Controller with KE2 Contactor Box
P/N: 20217 - 50A 20218 - 65A 20219 - 80A

Q.1.3 November 2017
Page 10
KE2 EvaporatorEfciency
Quick Start Guide
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
21
IMPORTANT
Determine the coil sensor location
To determine the most appropriate coil sensor location, put the system into
defrost. The coil sensor location is easily determined by viewing the frost pat-
tern during defrost. The last place frost disappears during the defrost cycle is
the correct coil sensor location.
Monitor both the air entering side, as well as the air exiting side, of the evapo-
rator coil. Don’t be surprised if the last place for frost to disappear is on the air
exiting side. It is usually near the right or left end of the coil.
It is important to verify all heating elements are working properly.
22
23 Steps to Ensure Proper Coil Sensor Location
More often than not on coils, the location of the sensor is a short distance
from the end, approximately 1 to 1-1/2” away from the right and left edges
of the active coil surface. The ice tends to grow from these edges towards
the center. Therefore, the sensor location is best situated approximately 1
to 1-1/2” from the outer edges and typically near the bottom 1/3rd portion
of the evaporator. The sensor needs to be as far away from the defrost heat
sources as possible. Be aware that the drain pan heater may aect coil sensor
location.
This is easily located by viewing the frost pattern during defrost. The last place
frost disappears during the defrost cycle is the correct coil sensor location.
Note: Insert plug (Item I from parts list) into coil housing when mounting
sensor wire to prevent damage to the sensor from sharp edges. Two plugs
are provided. One plug should be inserted into the inner housing to access
the coil, and the other into the outer housing to exit the coil. Installer must
puncture plug to insert sensor.
As with any wiring installation, it is appropriate to leave a service loop.
Enough wire should be left to move the sensor to the opposite end of the
evaporator.
Typically last spots to defrost
22
Locate sensor approx.
1-1/2” from end, in the
bottom third of coil
Item I from Parts List on page 1
23

© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.3 November 2017
Page 11
KE2 EvaporatorEfciency
Quick Start Guide
25
25 Installing the sensors
Sensors should be labeled with their function. Although not required, KE2
Therm suggests that the following sensor wiring colors be used for clarity, and
consistency, on kits having color sensor wires.
Blue for Room Air Temp and connected to T2
Yellow for Coil Temp and connected to T3
Green for the 2nd Coil Temp (T4Aux), when used, and connected to T4
Black for Suction Temp sensor, when used, and connected to T1
Note: All sensors can be used for any purpose and are interchangeable,
colors are for ease of identication only.
26
Air Sensor Bracket
Install the Air Temperature Sensor using the Stainless Steel self-piercing
screw and bracket from the parts kit.
The end with the single loop is designed to be mounted with the screw
included.
The end with multiple loops is designed to hold the sensor.
Locate the best place to install the sensor.
The sensor should be located between 8 - 12 inches away from the face
of the evaporator. This distance prevents the sensor from sensing heat from
the heating elements during the defrost cycle, but close enough to accurately
sense the return air temperature.
The sensor bracket may be bent as necessary to locate the sensor in the
proper position.
The air sensor should be installed at a height 2/3 down from the top of the
evaporator to accurately measure air going through the evaporator.
WARNING! Do not allow the metal portion of the air sensor to touch any-
thing other than air. It should not touch the bracket, nylon cable tie, or
any other solid surface.
26
Evaporator wiring – Auxiliary
The auxiliary relay is optional and wiring will vary depending on the auxil-
iary relay method selected.
Depending on auxiliary relay function, an additional conduit may be
required.
Strip the ends selected to control the auxiliary component.
Break the hot leg of the auxiliary component.
Attach the wire from the NO terminal on the auxiliary relay to one of the
auxiliary component leads. Attach the wire from the COM on the auxiliary
component relay to the L1/Line Voltage.
Connect L2/Neutral to the remaining auxiliary component lead.
Route and secure the conduit to the location the controller is to be installed.
Wiring must follow local wiring codes.
24
Coil Sensor
It is essential that the sensor is in the coldest location on the coil at
the end of the defrost cycle, this will ensure a complete defrost each and
every time. See steps 21-23 to determine correct coil sensor location.
Once you determine the proper sensor location, as described in prelimi-
nary steps 21-23, the coil sensor can be installed.
1.5”
Thermistor
Epoxy
.5”
27
Installing the Sensor Properly
Note, the most active portion of the sensor is the rst 1/2” of the 1-1/2” long
stainless steel probe. Figures 28 and 29 show two methods for installing the
sensor in the coil. The method shown in 28 will work in most applications,
however in some cases inserting the sensor into the coil may position it too
close to the defrost heat source. In these instances, the method shown in
Figure 29 can be used.
27

KE2 EvaporatorEfciency
Quick Start Guide
Q.1.3 November 2017
Page 12
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
The inset photo in Figure 28 shows that the sensor is positioned so that it is
touching two circuit tubes, as shown in Figure 28 1& 2. When inserting
the sensor into the coil, the tip should touch one of the circuit tubes 2, and
the probe should be inserted into the ns approximately 1/16” deeper than
the stainless shielding. 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. It should be about half the distance between the heaters if
possible.
28
Alternate method - As the defrost termination sensor, it is important to en-
sure 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
29A, places the sensor vertically between the coil ns. Figure 29B shows the
coil sensor properly secured.
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. Maximum
length for 18 gauge: 100 ft..
If additional resistance aects the temperature or pressure reading of the con-
troller, the temperature and pressure may be“oset”to read correctly. Use the
OFFSET function, in the SETPOINTS menu, Page 18.
When running the wires back to the controller take care to avoid introduc-
ing electrical noise into the sensor wires. Electrical noise can be introduced
when sensor wires are located near high voltage lines. High voltage is dened
by Underwriter’s Laboratories as above 30V. The higher voltage, the more
likely it is to introduce electrical noise.
If crossing a high voltage line is necessary, run sensor wiring at right angles
to prevent noise.
29
Connecting sensor wires to controller
The temperature sensors are designed to be attached to the controller us-
ing 2-position screw terminals. Using a connector from the parts kit, attach
the sensor to the screw terminal. The sensors are not polarized, so wire loca-
tion does not eect sensor performance.
Connect all sensors to pluggable connectors.
Once connected, the sensors should be plugged into the proper location on
the controller. The location can be determined from the label on the interior
wall of the enclosure or from the Wiring Schematic.
Strain relief
The enclosure is designed with a strain relief bar to prevent the sensor wires
from becoming unplugged from inadvertent contact.
Before securing the sensor wires, create a service loop. Figure 30.
Using a cable tie from the parts kit, securely fasten the sensor wires to the
strain relief bar.
Note: Unused connectors should be placed (installed) in their respective loca-
tion for future use.
30
Controller Mounting
Locate the 4 stainless steel mounting screws in the accessories kit
Install the 4 screws
Place the controller on the screws and tighten down the screws.
31
31
Final Step
Leave installation instructions onsite for future service.
32
30
29
A B
28
1
2

© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.3 November 2017
Page 13
KE2 EvaporatorEfciency
Quick Start Guide
Specications
Controller
Input Voltage: 120V or 208 - 240V
Ambient Temp: -40° to 140°F (-40°C to 60°C)
Operating Temp: -40° to 140°F (-40°C to 60°C)
Display: 4-digit alphanumeric LED
IP Rating: IP65
Inputs: (4) temperature sensors
(1) pressure transducer
Valve Types: unipolar and bipolar stepper motors (12V) (Beacon®is 21V)
Relays:
20A resistive (defrost)
10A inductive (evaporator fan)
(2) 3A inductive rated cycles
Digital Input 1: door contact, use 2nd air temp setpoint, disabled, system
o, external alarm notication
Digital Input 2: door switch, use 2nd air temp setpoint, disabled, system o, external alarm notication, defrost lockout, defrost
interlock
Digital Input 3: door switch, use 2nd air temp setpoint, disabled, system
o, external alarm notication, light switch
Communication: Standard TCP/IP
Pressure Transducer - pn 20201 (10 ft lead) or pn 20204 (40 ft lead)
Pressure Range: 0 to 150 psia
Proof Pressure: 450 psi
Burst Pressure: 1500 psi
Operating Temp: -40° to 275°F (-40°C to 135°C)
Temperature Sensor - 3 pack pn 21151 (15 ft leads) or pn 21066 (40 ft leads)
Sensor Specs: -60° to 150°F (-51°C to 65°C) moisture resistant package
208-240
120
120
Temperature Sensors Pressure
Transducer
T1SuctT4Aux T2AirT3Coil
line /L1
ground
neutral /L2
NC
NO
NO NC
NO NC
COM
COM
NC
Power In
green
red
black
NO
Transformer
3A Relay
3A Relay
COM
COM
COM NC
NO
COM NC
NO
18V
DI 1
DI 3
DI 2
Electric Valve:
Temperature Sensors (4) Pressure Transducer
RJ45 Ethernet Connection
DAC for ECM Fan
Fuse
empty
red
green
white
black
Auxiliary Relay
Fan Relay
(10 amp)
ground
signal +5
Defrost (Heater) Relay
(20 amp)
1/2 or 500mA
Time Delay
Liquid Line Solenoid
Power In
(compressor)
door switch
system o
dual temp setting
external alarm
light switch
defrost interlock
defrost lockout
Digital Inputs
Pressure Transducer
Wiring Detail
black
red
green
Voltage
Selector
120V - Jumpers
1&2 3&4
208-240V Jumper
2&3 only
1 2 3 4
0-10V analog out
+
_
KE2 HSV KE2 RSV
blue
orange
yellow
red
black
yellow
blue
red
white
black
Beacon® I
red
blue
white
black
Beacon® II
brown
green
white
yellow/black
Beacon® II
Part Number
20222 Beacon
replacement
controller
required.
(push down & 1/4
turn to remove fuse)
Back View of Controller - General Layout
For wiring schematics see pages 7-10

KE2 EvaporatorEfciency
Quick Start Guide
Q.1.3 November 2017
Page 14
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Table 1 - Controller Navigation - Menu Structure
Menu
Parameters:
MANUAL CONTROL
MANUAL VALVE4
CLEAR ALARMS
MANUAL COMPRESSOR RELAY
MANUAL DEFROST RELAY
MANUAL FAN RELAY
MANUAL AUX RELAY
FACTORY RESET
WEB PASSWORD RESET
KE2 SMART ACCESS
DHCP
DOD INIT
CLEAR MD
Menus: Variables Manual
(view only)
Non-adjustable
NO ALARM
PRESSURE SENSOR
SUCTION TEMP SENSOR
AIR TEMP SENSOR
COIL TEMP SENSOR
AUX TEMP SENSOR
HIGH SUPERHEAT
LOW SUPERHEAT
HIGH AIR TEMP
LOW AIR TEMP
EXCESS DEFROST
DEFR TERM ON TIME
DOOR SWITCH
COMMUNICATION ERROR
EXT ALARM
EMAIL FAILURE
FTP
SNTP
FLASH RW
Alarms
(view only)
ENTER
ENTER
Left and Right Arrows Use to move between Menus
Up Arrow and Down Arrow
Scroll through Menu Parameters
ENTER
Press and hold ENTER for 3 seconds, when display
begins blinking changes can be made
BACK
Press BACK to return to the previous view.
ENTER
Press and hold ENTER for 3 seconds to save change
To change settings:
To save setting changes:
To move through
controller menus:
To return to Main Menu:
Indicator lights Red light - critical alarm (system is not running)
Yellow light - non-critical alarm (system running)
Green light - compressor on
Green ashing - compressor waiting on timer to start/stop
1 T1 & T4 are parameters and can
be set to various functions. The
default for T1 is Suction Temp,
the default for T4 is Coil Temp.
2 The Setpoint paramenters
shown in BOLD (Valve Type,
Room Temp Setpoint and
Defrost Mode) need to be set by
the user prior to start up. The
other Setpoint Parameters can
also be adjusted, however the
factory setpoints are generally
correct for most applications.
3 The Setpoint parameters shown
in ITALIC are displayed only
when a Custom EEV is used.
4 Displayed when an EEV is used.
5 Only available if mechanical
valve is selected. When using an
electric valve the default,
suction temperature, is required.
6 The Setpoint parameters shown
in BOLD ITALIC are active for
bonded controllers only.
7 Only displayed when Run Time
Defrost is selected.
ROOM TEMP
COIL TEMP
SYSTEM MODE
SUPERHEAT
SUCTION PRESSURE
T1 SUCTION TEMP1
SATURATION TEMP
VALVE % OPEN4
T4 AUX TEMP1
COMPRESSOR RELAY
DEFROST RELAY
FAN RELAY
AUX RELAY
DIG 1 STATUS
DIG 2 STATUS
DIG 3 STATUS
IP OCTET 1
IP OCTET 2
IP OCTET 3
IP OCTET 4
SUBNET MASK OCTET 1
SUBNET MASK OCTET 2
SUBNET MASK OCTET 3
SUBNET MASK OCTET 4
FIRMWARE VERSION
ENTER
Press ENTER to go from parameter to value.
To toggle beween
description and value :
ROOM TEMP2
DEFROST TYPE2
VALVE TYPE2
MOTOR TYPE3
MOTOR STEP RATE3
MAX VALVE STEPS3
SUPERHEAT4
MAX OPERATING PRES4
REFRIGERANT
AUX TEMP 4 MODE
AUX TEMP 1 MODE5
AUX RELAY MODE
FAN SPEED
MIN COMP RUN TIME
MIN COMP OFF TIME
REFRIG FAN MODE
DEFROST MODE
DEFROSTS / DAY
1ST DEFROST DELAY
DEFROST FAN STATE
DEFROST TERM TEMP
DEFROST PARAMETER/MAX DEFROST TIME
DRAIN TIME
COMP RUN TIME7
ELEC DEFROST MODE
FAN DELAY TEMP
MAX FAN DELAY TIME
PUMP DOWN TIME
MULTI AIR TEMP CTRL
MULTI EVAP COOL6
MULTI EVAP DEFROST 6
MULTI EVAP SENSOR6
HIGH TEMP ALARM OFFSET
HIGH TEMP ALARM DELAY
LOW TEMP ALARM OFFSET
LOW TEMP ALARM DELAY
DOOR ALARM DELAY
DIG IN 1 MODE
DIG IN 1 STATE
DIG IN 2 MODE
DIG IN 2 STATE
DIG IN 3 MODE
DIG IN 3 STATE
2ND ROOM TEMP
SUCT PRES OFFSET
SUCT TEMP OFFSET
AIR TEMP OFFSET
COIL TEMP OFFSET
AUX TEMP OFFSET
TEMP UNITS
AIR TEMP DIFF
EXTREME TEMP DIFF
PROPORTIONAL
INTEGRAL
DERIVATIVE
Setpoints
Options for DIG IN STATUS
DISABLED
2ND (ROOM) TEMP
DOOR SWITCH
EXT ALARM
SYSTEM OFF
LIGHT SWITCH
DEFROST LOCKOUT
DEFROST INTERLOCK
Enter
Password
thermsolutions
ENTER
BACK
®
Efficiency
Evaporator
Press and hold for
manual defrost
24-hour
Emergency Technical Support
1.888.337.3358
2
2

Q.1.3 November 2017
Page 15
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvaporatorEfciency
Quick Start Guide
Adjusting Controller Parameters
The controller has the ability to access an abundance of information from the
4-digit alphanumeric display. However, the controller requires a password,
adding a degree of protection from unwanted modications. The control-
ler will prompt the user for a PASSWORD when the user attempts to access
setpoints they do not have permission to change.
Table 1 shows the menu structure of the controller. The default display of the
controller always shows the actual room temperature, defrost, or any alarm
condition. Pressing the or arrow will move from the default display
to the next menu column, shown in the Controller Navigation on page 14.
The VARIABLES menu column consists of the current sensor readings, and
the relays’ state.
The User Password (1111) only provides access to the ROOM TEMP setpoint.
For the protection of the system, access to the SETPOINT and MANUAL con-
trol requires an Installer Password (2222). A complete list of parameters is
shown in Table 3.
Pressing the
BACK
button at any time will return the user to next level up the
menu. A second/third press will either return to the Main Menu, or to the
room temperature reading.
Table 2 - Introduction Mode
Mechanical Valve
TEV - 4 steps
Dened EEV
5 steps
Custom EEV
8 steps
Room Temp Room Temp Room Temp
Defrost Type Defrost Type Defrost Type
Valve Type Valve Type Valve Type
KE2 Smart Access Refrigerant Refrigerant
KE2 Smart Access Motor Type (Unipolar/Bipolar)
Motor Step Rate
Max Valve Steps
KE2 Smart Access
Web Login
The User Name and Password are required when accessing the controller us-
ing the webpage.
The defaults are: User Name: ke2admin Password: ke2admin
IMPORTANT: The User Name and Password should be changed from the
default for security purposes.
User Interface
The KE2 Evap’s onboard user interface uses a familiar 6-button arrangement to
simplify navigation through the controller’s menus. The menus are grouped
in columns. The user is not required to scroll though unrelated setpoints.
The and arrows move between the menu column categories. If
pressed while in a menu, the and arrows move to the main screen or
the adjacent menu column.
The and arrows move the user through the available options for each
menu column. All users are allowed access to the variables and alarms menu
columns. All other information is password protected to prevent unauthor-
ized access to the controller’s functionality.
The
ENTER
button is used to save an input option when it has been changed.
The
ENTER
button must be held for 3 seconds, to prevent accidental
changes. Changes may be discarded by waiting, to allow the controller to
time-out and return to default screen, or by pressing the
BACK
button. The
BACK
button is used to return to the previous screen. Pressing the
BACK
several times will return the user to the default view. See Controller Naviga-
tion on page 14.
4 Controller Setup: Four Step Intro Mode
Upon initially applying power to the controller, the controller will initialize,
then automatically enter the Introduction Mode. The Introduction Mode
consists of as little as 4 setpoints that must be congured for the KE2 Evap to
begin controlling the system. See Table 2.
Step 1 - The rst setpoint the user is asked to enter is the desired ROOM
TEMP. The default value is -10.0ºF, and the right most 0 will be ashing. Use
the and arrows to change the digit being modied. If you want the
room temperature warmer, press the arrow, and if you want it colder, press
the arrow. Once you have the proper room temp for your system, press
and hold
ENTER
for three seconds.
Step 2 - Next, the controller will display DEFROST TYPE, and then display
ELECTRIC, for electric defrost. The controller is designed to work with electric,
hot gas, and air defrosts. Change this value by pressing the or arrow.
Once you have the correct value, press and hold
ENTER
for three seconds.
Step 3- The controller now prompts for the expansion valve type, and dis-
plays MECHANICAL as the default. If you have a mechanical valve, press and
hold
ENTER
for three seconds. If you have an electric valve, use the or
arrow to move to the correct valve. With the correct electric valve displayed,
press and hold
ENTER
for three seconds. NOTE: If you select an electric valve,
you will then be prompted to specify the REFRIGERANT.
The KE2 Evap may also be applied to user dened CUSTOM electric valves.
When CUSTOM is selected, the user is prompted to select MOTOR TYPE, MO-
TOR STEP RATE, and MAX VALVE STEPS.
Step 4 - The fourth prompt is whether KE2 SMART ACCESS is ENABLED
or DISABLED. KE2 SMART ACCESS allows you to easily view your control-
ler online. (See pages 16 & 17 for more information.) Make your selection by
using the or arrow, and then press and hold
ENTER
for three seconds.
These are the only setpoints required to begin controlling the system. For
setup with multi-evaporator applications see bulletins Q.5.10 and Q.1.32

© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.3 November 2017
Page 16
KE2 EvaporatorEfciency
Quick Start Guide
Introduction to KE2 Smart Access
KE2 Smart Access provides quick and easy, real time access to your refrigera-
tion systems, 24/7
The KE2 Evap has always been internet accessible, but now it’s easier than
ever to monitor and adjust your KE2 Evap remotely. With the launch of
version 4.0 firmware, KE2 Smart Access is available.
While the KE2 Evap’s free connectivity is still available, KE2 Therm recog-
nizes that some customers prefer the simplicity and convenience of KE2
Smart Access to provide the benefits of the controller’s communication
capability.
For a nominal monthly fee, KE2 Smart Access provides easy, real time ac-
cess to your refrigeration system 24/7. No port forwarding. No VPN.
All the KE2 Evap needs is a physical connection to the network router with
a cat 5 cable. Once enabled, KE2 Smart Access quickly connects to your
personal web portal, hosted by KE2 Therm, and provides a “customized”
dashboard of all the controllers you setup with KE2 Smart Access.
Preliminary
Connect the KE2 Evap to the customer’s network.
CAT5 Ethernet
Cable
1 2 3 654 7
Link/ACT
100/1000Mbps
POWER
Customer Network
thermsolutions
ENTER
BACK
®
Efficiency
Evaporator
Pressandhold for
manualdefrost
24-hour
EmergencyTechnical Support
1.888.337.3358
2
2
Screen shot of a single KE2 Evap
connected through KE2 Smart
Access.
Screen shots of KE2 Smart Access
dashboard. Controller and system
information is displayed for all of the
controllers on the portal.
Benets of KE2 Smart Access
KE2 Smart Access auto launches, and can eliminate
the need for costly IT support
Doesn’t require port forwarding or a vpn
Customized dashboard lets you remotely view all
the controllers on one page
It’s easier than ever to set up every controller you
service to provide alarm notications via text or
email
Easy setup of remote monitoring & system control
Video 062 Communication Made Easy with KE2 Smart Access
Video 063 Setup KE2 Smart Access on a New KE2 Evap Installation
Video 064 Setup KE2 Smart Access on a Previously Installed KE2 Evap
Video 046 Wire the KE2 Evap Controller
Video 053 The KE2 LDA: Communication Device for KE2 Therm Serial-
ModBus and Ethernet Controllers
Video 059 The KE2 LDA: Connecting the KE2 LDA to KE2 Smart Access
youtube.com/ke2therm
Visit our YouTube channel for videos
on KE2 Smart Access.

Smart Phone
MODIFY STATUS
ABC Contracting
[phone]
All Clear
Compressor
On
System Mode
Cool Evaporator Fan Off
Room Temp
-8.5 F Coil Temp 15.4 F
Sat Temp
46.0 F
Superheat
0.0 F Valve Position Manual
Suct Pressure
96.2 F Suct Temp 87.7 F
Dig Input 3
Dis
Defrost
Off Aux Temp Dis
Dig Input 1
Closed Dig Input 2 Dis
PC/Mac iPad/Tablet
MODIFY STATUS
ABC Contracting
[phone]
All Clear
Compressor
On
System Mode
Cool Evaporator Fan Off
Room Temp
-8.5 F Coil Temp 15.4 F
Sat Temp
46.0 F
Superheat
0.0 F Valve Position Manual
Suct Pressure
96.2 F Suct Temp 87.7 F
Dig Input 3
Dis
Defrost
Off Aux Temp Dis
Dig Input 1
Closed Dig Input 2 Dis
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.3 November 2017
Page 17
KE2 EvaporatorEfciency
Quick Start Guide
Step 3
Enter default information
Enter default information, and click Log In button.
Site: installer
Password: controllers Mac Address
(from sticker on back of controller)
Step 1
Enable KE2 Smart Access in the Introduction
Mode menu
After setting the Room Temp, Defrost Type and Valve
Type, set KE2 Smart Access to Enabled.
Use the or arrow to change KE2 Smart Access
to Enabled. Press and hold the
ENTER
button for 3 sec-
onds to save the change.
Note: KE2 Smart Access may be enabled during intro-
duction Mode Menu, or anytime thereafter through the
Manual Menu. See Table 1, Controller Navigation on Page
14.
Introduction Mode
Mechanical Valve TEV
4 steps
Dened EEV
5 steps
Custom EEV
8 steps
Room Temp Room Temp Room Temp
Defrost Type Defrost Type Defrost Type
Valve Type Valve Type Valve Type
KE2 Smart Access Refrigerant Refrigerant
KE2 Smart Access Motor Type (Unipolar/Bipolar)
Motor Step Rate
Max Valve Steps
KE2 Smart Access
1
1
1
Step 2
Go to smartaccess.ke2therm.net
Using your PC, tablet or smartphone, enter
http://smartaccess.ke2therm.net in the web browser’s
address bar.
KE2 Smart Access - Online Access In 3 Easy Steps
installer
IP-10.10.52.19
MAC
00:04:A3:14:E5:92
IP-10.10.52.19
MAC
00:04:A3:14:E5:92
For additional information on KE2 Smart Access, visit
http://ke2therm.com/productliteratureevap4.html, and
see bulletins A.1.76 The KE2 Evap v4.0 with KE2 Smart
Access and Q.1.34 KE2 Smart Access Setup and Custom-
izing.

KE2 EvaporatorEfciency
Quick Start Guide
Q.1.3 November 2017
Page 18
Setpoints Menu
Parameter Name Description Range Default Parameter Name
ROOM TEMP Walk-in freezer or cooler room temperature to be maintained -50°F to 90°F -10°F ROOM TEMP
DEFROST TYPE Method of defrost used on the evaporator coil: Electric, Air, Hot Gas with Liquid Line Solenoid/Compressor relay o, Hot Gas with
Liquid Line Solenoid/compressor relay on ELEC, AIR, HOT GAS COMP ON, HOT GAS COMP OFF ELEC DEFROST TYPE
VALVE TYPE Type of valve used on the system: mechanical, pre-congured electric, custom EEV conguration MECHANICAL, KE2 RSV, KE2 HSV, SER/SEI 1 TO 20, SER B TO L, SEI 30, SEI 50, SEH, ETS12 TO 50,
ETS100, ETS250/400, CAREL, CUSTOM; MECHANICAL VALVE TYPE
Custom
EEV only
MOTOR TYPE If VALVE TYPE = CUSTOM: The motor type used in the valve BIPOLAR, UNIPOLAR BIPOLAR MOTOR TYPE
MOTOR STEP RATE If VALVE TYPE = CUSTOM: The motor speed setting in number of steps per second 30 to 400 steps/second 200 steps MOTOR STEP RATE
MAX VALVE STEPS If VALVE TYPE = CUSTOM: The total number of steps required to move the valve from closed to fully open 200 to 6400 steps 1600 steps MAX VALVE STEPS
SUPERHEAT The superheat value that the controller will maintain, (not applicable if VALVE TYPE = MECHANICAL) 5°F to 30°F 8°F SUPERHEAT
MAX OPERATING PRES The maximum allowable suction pressure, (not applicable if VALVE TYPE = MECHANICAL) 10-500 psig if R-744 selected, 10-300psig if R-410A selected, 10-150 psig all other refrigerants 150 psig MAX OPERATING PRES
REFRIGERANT The type of refrigerant used in the refrigeration system 404A, R507, 407A, 407C, 422A, 422D, 134A, R22, R717, 438A, 408A, 409A, 407F, 410A, 448A,
449A, 450A, 513A, R744 404A REFRIGERANT
AUX TEMP 4 MODE Conguration mode of the auxiliary temperature sensor DISABLED, MONITOR, T4 ROOM TEMP, T4 COIL TEMP T4 COIL TEMP AUX TEMP 4 MODE
AUX TEMP 1 MODE Conguration mode of the auxiliary temperature sensor (Not available if EEV is selected) T1 SUCTION TEMP, MONITOR, T1 ROOM TEMP, 2ND COIL TEMP T1 SUCTION AUX TEMP 1 MODE
AUX RELAY MODE Conguration mode of the auxiliary relay. ALARM RELAY, 2ND COMP RELAY, 2ND FAN RELAY, 2ND DEFR RELAY, 2 SPEED FAN CTL, LIGHT
RELAY, PERM DEFROST RELAY ALARM RELAY AUX RELAY MODE
FAN SPEED Provides 0-10V DC signal to control variable speed -100% to 100% 0.000 (O) FAN SPEED
MIN COMP RUN TIME Minimum amount of time the liquid line solenoid/compressor relay must remain on after it is energized 0 to 15 minutes 2 minutes MIN COMP RUN TIME
MIN COMP OFF TIME Minimum amount of time the liquid line solenoid/compressor relay must remain o before it can be energized again. 0 to 15 minutes 5 minutes MIN COMP OFF TIME
REFRIG FAN MODE Fan operation while in refrigeration mode ON WITH COMPRESSOR, PERMANENT, MANAGED, CONTROL FOR TITLE 24 ON WITH COMPRESSOR REFRIG FAN MODE
DEFROST MODE The method the controller uses to determine when to initiate a defrost. DEMAND, SCHEDULED, RUN TIME DEMAND DEFROST MODE
DEFROSTS / DAY If DEFROST MODE = SCHEDULED: The number of evenly spaced defrosts per day the controller will initiate. 0 to 8 5 DEFROSTS / DAY
1ST DEFROST DELAY If DEFROST MODE = SCHEDULED: The amount of time from controller power up until the rst defrost is initiated. 0 to 240 minutes 120 minutes 1ST DEFROST DELAY
DEFROST FAN STATE Whether or not to run the evaporator fans during defrost ON/OFF OFF if DEFROST TYPE = ELEC, HOT GAS COMP ON, HOT GAS COMP OFF
ON if DEFROST TYPE = AIR DEFROST FAN STATE
DEFROST TERM TEMP The temperature the coil sensor(s) must exceed in order to terminate defrost. The controller’s defrost mode is complete at this point. 35°F to 90°F 50°F if DEFROST TYPE = ELEC, HOT GAS COMP ON, HOT GAS COMP OFF
40°F if DEFROST TYPE = AIR DEFROST TERM TEMP
DEFROST PARAMETER if DEFROST MODE = DEMAND: Coecient to KE2 Defrost algorithm 0 to 90 30 if DEFROST TYPE = ELEC 10 if DEFROST TYPE = HOT GAS COMP ON, HOT GAS COMP OFF
40 if DEFROST TYPE = AIR DEFROST PARAMETER
MAX DEFROST TIME If DEFROST MODE = SCHEDULE or RUNTIME: The maximum amount of time the defrost relay will be energized. (Not available if DEFROST MODE = DEMAND) 0 to 90 minutes
45 minutes if DEFROST TYPE = ELEC
10 minutes if DEFROST TYPE = HOT GAS COMP ON, HOT GAS
COMP OFF
40 minutes if DEFROST TYPE = AIR
MAX DEFROST TIME
DRAIN TIME Time to be in drain mode (drip time) 0 to 15 minutes 2 minutes DRAIN TIME
COMP RUN TIME If DEFROST MODE = RUN TIME: The amount of time liquid line solenoid/compressor relay is energized before the next defrost is initiated. 0 to 24 hours 6 hours COMP RUN TIME
ELEC DEFROST MODE If DEFROST TYPE = ELEC: Whether to leave the defrost relay energized during the defrost cycle or to utilize advanced defrost algorithm. PULSE, PERMANENT PULSE ELEC DEFROST MODE
FAN DELAY TEMP After defrost, the coil sensor reading must fall below this temperature set point in order for the controller to resume normal fan operation. -40°F to 35°F 20°F FAN DELAY TEMP
MAX FAN DELAY TIME Maximum amount of time after defrost to resume normal fan operation. 0 to 20 minutes 2 minutes MAX FAN DELAY TIME
PUMP DOWN TIME Minimum amount of time between de-energizing the liquid line solenoid/compressor relay and energizing the defrost relay. 0 to 90 minutes 0 minutes if DEFROST TYPE = ELEC or AIR,
2 minutes if DEFROST TYPE = HOT GAS ON/OFF PUMP DOWN TIME
MULTI AIR TEMP CTRL Select control method to use with multiple room temperature sensors AVERAGE, WARMEST WARMEST MULTI AIR TEMP CTRL
Bonded
Control-
lers Only
MULTI EVAP COOL Select type of multi evaporator control - options are synchronous or independent SYNC, INDEPENDENT SYNC MULTI EVAP COOL
MULTI EVAP DEFROST Select whether to have all bonded controllers initiate defrost mode at the same time or independently. SYNC, INDEPENDENT SYNC MULTI EVAP DEFROST
MULTI EVAP SENSOR Select whether or not to share room temperature, coil temperature and suction pressure sensor data with bonded controllers. SHARED, NOT SHARED SHARED MULTI EVAP SENSOR
HIGH TEMP ALARM OFFSET The number of degrees above ROOM TEMP for a HIGH TEMP ALARM condition. 0°F to 99.9°F 10°F HIGH TEMP ALARM OFFSET
HIGH TEMP ALARM DELAY Minutes the room temperature must remain above ROOM TEMP + HIGH TEMP ALARM OFFSET before issuing a HIGH TEMP ALARM 0 to 120 minutes 60 minutes HIGH TEMP ALARM DELAY
LOW TEMP ALARM OFFSET The number of degrees below ROOM TEMP for a LOW TEMP ALARM condition. 0°F to 20°F 4°F LOW TEMP ALARM OFFSET
LOW TEMP ALARM DELAY Minutes the room temperature must remain below ROOM TEMP - LOW TEMP ALARM OFFSET before issuing a LOW TEMP ALARM 0 to 30 minutes 10 minutes LOW TEMP ALARM DELAY
DOOR ALARM DELAY If DIG IN (1, 2 and/or 3) MODE = DOOR SWITCH: The amount of time, in minutes, before an alarm condition is initiated if door is open and room
temperature is 5 degrees above ROOM TEMP + AIR TEMP DIFF 0 to 180 minutes 30 minutes DOOR ALARM DELAY
DIG IN 1 MODE Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF DOOR SWITCH DIG IN 1 MODE
DIG IN 1 STATE Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED DIG IN 1 STATE
DIG IN 2 MODE Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF, DEFR INTERLOCK,
DEFR LOCKOUT DISABLED DIG IN 2 MODE
DIG IN 2 STATE Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED DIG IN 2 STATE
DIG IN 3 MODE Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF, LIGHT SWITCH SYSTEM OFF DIG IN 3 MODE
DIG IN 3 STATE Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED DIG IN 3 STATE
2ND ROOM TEMP If DIG IN (1, 2 and/or 3)MODE = 2ND ROOM TEMP: This value becomes the ROOM TEMP setpoint when the digital input is active -50°F to 90°F -50°F 2ND ROOM TEMP
SUCT PRES OFFSET An oset added or subtracted from the suction line pressure transducer reading, if needed -5.0 to 5.0 psig 0.0 psig SUCT PRES OFFSET
SUCT TEMP OFFSET An oset added or subtracted from the suction temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F SUCT TEMP OFFSET
AIR TEMP OFFSET An oset added or subtracted from the room temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F AIR TEMP OFFSET
COIL TEMP OFFSET An oset added or subtracted from the coil temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F COIL TEMP OFFSET
AUX TEMP OFFSET An oset added or subtracted from the auxiliary temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F AUX TEMP OFFSET
TEMP UNITS Units for temperature’s display in °F or °C FAHRENHEIT/CELSIUS FAHRENHEIT TEMP UNITS
AIR TEMP DIFF The number of degrees above ROOM TEMP before the controller will go into REFRIGERATION mode 0.1°F to 5°F 1°F AIR TEMP DIFF
EXTREME TEMP DIFF ADVANCED TOPIC: Call KE2 Therm for assistance EXTREME TEMP DIFF
PROPORTIONAL A coecient to the valve control algorithm that increases valve responsiveness 0 to 255 3 PROPORTIONAL
INTEGRAL A coecient to the valve control algorithm that increases valve responsiveness 0 to 255 5 INTEGRAL
DERIVATIVE Should not be adjusted unless instructed by KE2 Therm technical support 0 to 255 3 DERIVATIVE
Table 3 - Controller Menus and Menu Parameters
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090

Q.1.3 November 2017
Page 19
Setpoints Menu
KE2 EvaporatorEfciency
Quick Start Guide
Parameter Name Description Range Default Parameter Name
ROOM TEMP Walk-in freezer or cooler room temperature to be maintained -50°F to 90°F -10°F ROOM TEMP
DEFROST TYPE Method of defrost used on the evaporator coil: Electric, Air, Hot Gas with Liquid Line Solenoid/Compressor relay o, Hot Gas with
Liquid Line Solenoid/compressor relay on ELEC, AIR, HOT GAS COMP ON, HOT GAS COMP OFF ELEC DEFROST TYPE
VALVE TYPE Type of valve used on the system: mechanical, pre-congured electric, custom EEV conguration MECHANICAL, KE2 RSV, KE2 HSV, SER/SEI 1 TO 20, SER B TO L, SEI 30, SEI 50, SEH, ETS12 TO 50,
ETS100, ETS250/400, CAREL, CUSTOM; MECHANICAL VALVE TYPE
Custom
EEV only
MOTOR TYPE If VALVE TYPE = CUSTOM: The motor type used in the valve BIPOLAR, UNIPOLAR BIPOLAR MOTOR TYPE
MOTOR STEP RATE If VALVE TYPE = CUSTOM: The motor speed setting in number of steps per second 30 to 400 steps/second 200 steps MOTOR STEP RATE
MAX VALVE STEPS If VALVE TYPE = CUSTOM: The total number of steps required to move the valve from closed to fully open 200 to 6400 steps 1600 steps MAX VALVE STEPS
SUPERHEAT The superheat value that the controller will maintain, (not applicable if VALVE TYPE = MECHANICAL) 5°F to 30°F 8°F SUPERHEAT
MAX OPERATING PRES The maximum allowable suction pressure, (not applicable if VALVE TYPE = MECHANICAL) 10-500 psig if R-744 selected, 10-300psig if R-410A selected, 10-150 psig all other refrigerants 150 psig MAX OPERATING PRES
REFRIGERANT The type of refrigerant used in the refrigeration system 404A, R507, 407A, 407C, 422A, 422D, 134A, R22, R717, 438A, 408A, 409A, 407F, 410A, 448A,
449A, 450A, 513A, R744 404A REFRIGERANT
AUX TEMP 4 MODE Conguration mode of the auxiliary temperature sensor DISABLED, MONITOR, T4 ROOM TEMP, T4 COIL TEMP T4 COIL TEMP AUX TEMP 4 MODE
AUX TEMP 1 MODE Conguration mode of the auxiliary temperature sensor (Not available if EEV is selected) T1 SUCTION TEMP, MONITOR, T1 ROOM TEMP, 2ND COIL TEMP T1 SUCTION AUX TEMP 1 MODE
AUX RELAY MODE Conguration mode of the auxiliary relay. ALARM RELAY, 2ND COMP RELAY, 2ND FAN RELAY, 2ND DEFR RELAY, 2 SPEED FAN CTL, LIGHT
RELAY, PERM DEFROST RELAY ALARM RELAY AUX RELAY MODE
FAN SPEED Provides 0-10V DC signal to control variable speed -100% to 100% 0.000 (O) FAN SPEED
MIN COMP RUN TIME Minimum amount of time the liquid line solenoid/compressor relay must remain on after it is energized 0 to 15 minutes 2 minutes MIN COMP RUN TIME
MIN COMP OFF TIME Minimum amount of time the liquid line solenoid/compressor relay must remain o before it can be energized again. 0 to 15 minutes 5 minutes MIN COMP OFF TIME
REFRIG FAN MODE Fan operation while in refrigeration mode ON WITH COMPRESSOR, PERMANENT, MANAGED, CONTROL FOR TITLE 24 ON WITH COMPRESSOR REFRIG FAN MODE
DEFROST MODE The method the controller uses to determine when to initiate a defrost. DEMAND, SCHEDULED, RUN TIME DEMAND DEFROST MODE
DEFROSTS / DAY If DEFROST MODE = SCHEDULED: The number of evenly spaced defrosts per day the controller will initiate. 0 to 8 5 DEFROSTS / DAY
1ST DEFROST DELAY If DEFROST MODE = SCHEDULED: The amount of time from controller power up until the rst defrost is initiated. 0 to 240 minutes 120 minutes 1ST DEFROST DELAY
DEFROST FAN STATE Whether or not to run the evaporator fans during defrost ON/OFF OFF if DEFROST TYPE = ELEC, HOT GAS COMP ON, HOT GAS COMP OFF
ON if DEFROST TYPE = AIR DEFROST FAN STATE
DEFROST TERM TEMP The temperature the coil sensor(s) must exceed in order to terminate defrost. The controller’s defrost mode is complete at this point. 35°F to 90°F 50°F if DEFROST TYPE = ELEC, HOT GAS COMP ON, HOT GAS COMP OFF
40°F if DEFROST TYPE = AIR DEFROST TERM TEMP
DEFROST PARAMETER if DEFROST MODE = DEMAND: Coecient to KE2 Defrost algorithm 0 to 90 30 if DEFROST TYPE = ELEC 10 if DEFROST TYPE = HOT GAS COMP ON, HOT GAS COMP OFF
40 if DEFROST TYPE = AIR DEFROST PARAMETER
MAX DEFROST TIME If DEFROST MODE = SCHEDULE or RUNTIME: The maximum amount of time the defrost relay will be energized. (Not available if DEFROST MODE = DEMAND) 0 to 90 minutes
45 minutes if DEFROST TYPE = ELEC
10 minutes if DEFROST TYPE = HOT GAS COMP ON, HOT GAS
COMP OFF
40 minutes if DEFROST TYPE = AIR
MAX DEFROST TIME
DRAIN TIME Time to be in drain mode (drip time) 0 to 15 minutes 2 minutes DRAIN TIME
COMP RUN TIME If DEFROST MODE = RUN TIME: The amount of time liquid line solenoid/compressor relay is energized before the next defrost is initiated. 0 to 24 hours 6 hours COMP RUN TIME
ELEC DEFROST MODE If DEFROST TYPE = ELEC: Whether to leave the defrost relay energized during the defrost cycle or to utilize advanced defrost algorithm. PULSE, PERMANENT PULSE ELEC DEFROST MODE
FAN DELAY TEMP After defrost, the coil sensor reading must fall below this temperature set point in order for the controller to resume normal fan operation. -40°F to 35°F 20°F FAN DELAY TEMP
MAX FAN DELAY TIME Maximum amount of time after defrost to resume normal fan operation. 0 to 20 minutes 2 minutes MAX FAN DELAY TIME
PUMP DOWN TIME Minimum amount of time between de-energizing the liquid line solenoid/compressor relay and energizing the defrost relay. 0 to 90 minutes 0 minutes if DEFROST TYPE = ELEC or AIR,
2 minutes if DEFROST TYPE = HOT GAS ON/OFF PUMP DOWN TIME
MULTI AIR TEMP CTRL Select control method to use with multiple room temperature sensors AVERAGE, WARMEST WARMEST MULTI AIR TEMP CTRL
Bonded
Control-
lers Only
MULTI EVAP COOL Select type of multi evaporator control - options are synchronous or independent SYNC, INDEPENDENT SYNC MULTI EVAP COOL
MULTI EVAP DEFROST Select whether to have all bonded controllers initiate defrost mode at the same time or independently. SYNC, INDEPENDENT SYNC MULTI EVAP DEFROST
MULTI EVAP SENSOR Select whether or not to share room temperature, coil temperature and suction pressure sensor data with bonded controllers. SHARED, NOT SHARED SHARED MULTI EVAP SENSOR
HIGH TEMP ALARM OFFSET The number of degrees above ROOM TEMP for a HIGH TEMP ALARM condition. 0°F to 99.9°F 10°F HIGH TEMP ALARM OFFSET
HIGH TEMP ALARM DELAY Minutes the room temperature must remain above ROOM TEMP + HIGH TEMP ALARM OFFSET before issuing a HIGH TEMP ALARM 0 to 120 minutes 60 minutes HIGH TEMP ALARM DELAY
LOW TEMP ALARM OFFSET The number of degrees below ROOM TEMP for a LOW TEMP ALARM condition. 0°F to 20°F 4°F LOW TEMP ALARM OFFSET
LOW TEMP ALARM DELAY Minutes the room temperature must remain below ROOM TEMP - LOW TEMP ALARM OFFSET before issuing a LOW TEMP ALARM 0 to 30 minutes 10 minutes LOW TEMP ALARM DELAY
DOOR ALARM DELAY If DIG IN (1, 2 and/or 3) MODE = DOOR SWITCH: The amount of time, in minutes, before an alarm condition is initiated if door is open and room
temperature is 5 degrees above ROOM TEMP + AIR TEMP DIFF 0 to 180 minutes 30 minutes DOOR ALARM DELAY
DIG IN 1 MODE Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF DOOR SWITCH DIG IN 1 MODE
DIG IN 1 STATE Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED DIG IN 1 STATE
DIG IN 2 MODE Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF, DEFR INTERLOCK,
DEFR LOCKOUT DISABLED DIG IN 2 MODE
DIG IN 2 STATE Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED DIG IN 2 STATE
DIG IN 3 MODE Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF, LIGHT SWITCH SYSTEM OFF DIG IN 3 MODE
DIG IN 3 STATE Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED DIG IN 3 STATE
2ND ROOM TEMP If DIG IN (1, 2 and/or 3)MODE = 2ND ROOM TEMP: This value becomes the ROOM TEMP setpoint when the digital input is active -50°F to 90°F -50°F 2ND ROOM TEMP
SUCT PRES OFFSET An oset added or subtracted from the suction line pressure transducer reading, if needed -5.0 to 5.0 psig 0.0 psig SUCT PRES OFFSET
SUCT TEMP OFFSET An oset added or subtracted from the suction temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F SUCT TEMP OFFSET
AIR TEMP OFFSET An oset added or subtracted from the room temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F AIR TEMP OFFSET
COIL TEMP OFFSET An oset added or subtracted from the coil temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F COIL TEMP OFFSET
AUX TEMP OFFSET An oset added or subtracted from the auxiliary temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F AUX TEMP OFFSET
TEMP UNITS Units for temperature’s display in °F or °C FAHRENHEIT/CELSIUS FAHRENHEIT TEMP UNITS
AIR TEMP DIFF The number of degrees above ROOM TEMP before the controller will go into REFRIGERATION mode 0.1°F to 5°F 1°F AIR TEMP DIFF
EXTREME TEMP DIFF ADVANCED TOPIC: Call KE2 Therm for assistance EXTREME TEMP DIFF
PROPORTIONAL A coecient to the valve control algorithm that increases valve responsiveness 0 to 255 3 PROPORTIONAL
INTEGRAL A coecient to the valve control algorithm that increases valve responsiveness 0 to 255 5 INTEGRAL
DERIVATIVE Should not be adjusted unless instructed by KE2 Therm technical support 0 to 255 3 DERIVATIVE

Parameter Name Description
NO ALARM No alarms active, everything is running correctly
PRESSURE SENSOR Suction pressure sensor is shorted, open or pressure out of range
T1 SUCTION SENSOR Suction temperature sensor is shorted or open
T2 AIR SENSOR Return air temperature sensor is shorted or open
T3 COIL SENSOR Coil temperature sensor is shorted or open
T4 AUX SENSOR Auxiliary temperature sensor is shorted or open
HIGH SUPERHEAT Superheat above upper limit
LOW SUPERHEAT Superheat below lower limit
HIGH AIR TEMP Room temperature is above ROOM TEMP + AIR TEMP DIFF + HIGH TEMP ALARM OFFSET for longer than HIGH TEMP ALARM DELAY
LOW AIR TEMP Room temperature is below ROOM TEMP - LOW TEMP ALARM OFFSET for longer than LOW TEMP ALARM DELAY
EXCESS DEFROST If the controller initiates 32 defrosts within 48 hours
DEFR TERM ON TIME Defrost terminated on time instead of temperature for two consecutive cycles
DOOR SWITCH If door is open and room temperature is 5 degrees above ROOM TEMP + AIR TEMP DIFF for DOOR ALARM DELAY time
COMMUNICATION ERROR ONLY FOR BONDED CONTROLLERS: No communication between controllers for one minute or more
EXT ALARM If DIG IN (1, 2 and/or 3) MODE = EXT ALARM: The digital input is in an active state
EMAIL FAILURE Email alert was not conrmed by email server provided after seven consecutive attempts
FTP COMMUNICATION ALARM ONLY FOR SITEVIEW MANAGER: No communication to the FTP server dened in Settings/Logging Options
SNTP COMMUNICATION ALARM ONLY FOR SITEVIEW MANAGER: No communication to the SNTP server dened in Settings/Siteview Options
FLASH R/W Controller cannot read or write to the ash memory. Contact KE2 Therm.
© Copyright 2017 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.1.3 November 2017 supersedes Q.1.3 March2017 and all prior publications.
Q.1.3 November 2017
Page 20
KE2 EvaporatorEfciency
Quick Start Guide
KE2 Therm Solutions
12 Chamber Drive . Washington, MO 63090
1.888.337.3358 . www.ke2therm.com
Parameter Name Description Range Default
MANUAL CONTROL Force the controller into the next operating mode REFRIGERATE/OFF, DEFROST DELAY FAN, DEFROST,
DRAIN TIME, FAN DELAY
MANUAL VALVE Manually open or close the EEV in percentage increments 0.1%, 1%, or 10% increments
CLEAR ALARMS Clear all active alarms
MANUAL COMPRESSOR RELAY Manually energize or de-energize liquid line solenoid /compressor relay AUTO ON/OFF, MANUAL OFF, MANUAL ON AUTO
MANUAL DEFROST RELAY Manually energize or de-energize defrost relay AUTO ON/OFF, MANUAL OFF, MANUAL ON AUTO
MANUAL FAN RELAY Manually energize or de-energize evaporator fan relay AUTO ON/OFF, MANUAL OFF, MANUAL ON AUTO
MANUAL AUX RELAY Manually energize or de-energize auxiliary relay AUTO ON/OFF, MANUAL OFF, MANUAL ON AUTO
FACTORY RESET Reset the controller to the factory default setpoints RESET
WEB PASSWORD RESET Reset the web password to the factory default RESET
KE2 SMART ACCESS Turn KE2 Smart Access on or o DISABLE, ENABLE DISABLE
DHCP Turn DHCP mode on or o DISABLE, ENABLE DISABLE
DOD INIT Re-initialize KE2 defrost algorithm RESET
CLEAR MD NO LONGER USED
Parameter Name Description
ROOM TEMP Walk-in freezer or cooler room temperature (T2 Air Sensor) as measured by the controller
COIL TEMP Coil temperature (T3 Coil Sensor) as measured by the controller
SYSTEM MODE Current operating status
Only displayed when
certain congura-
tions are selected
SUPERHEAT Superheat as calculated by the controller (requires suction pressure transducer and T1 set as suction temperature sensor)
SUCTION PRESSURE Suction pressure as measured by the controller (only available if suction pressure transducer installed)
T1 SUCTION TEMP Suction temperature as measured by the controller
SATURATION TEMP Saturation temperature as calculated by the controller (requires pressure transducer and T1 sensor)
VALVE % OPEN Percentage the EEV is open (only available if EEV is selected)
T4 AUX TEMP Auxiliary Temperature (Taux) sensor reading as measured by the controller (Not available if T4 set to DISABLED)
COMPRESSOR RELAY Current state of liquid line solenoid/compressor relay
DEFROST RELAY Current state of the defrost relay
FAN RELAY Current state of the evaporator fan relay
AUX RELAY Current state of the auxiliary relay
DIG 1 STATUS Current status of the Digital Input #1
DIG 2 STATUS Current status of the Digital Input #2
DIG 3 STATUS Current status of the Digital Input #3
IP OCTET 1 The rst three digits of the IP address
IP OCTET 2 The second three digits of the IP address
IP OCTET 3 The third three digits of the IP address
IP OCTET 4 The fourth three digits of the IP address
SUBNET MASK OCTET 1 The rst three digits of the subnet mask
SUBNET MASK OCTET 2 The second three digits of the subnet mask
SUBNET MASK OCTET 3 The third three digits of the subnet mask
SUBNET MASK OCTET 4 The fourth three digits of the subnet mask
FIRMWARE VERSION Current version of the rmware on the controller
Variables Menu - Non Adjustable (view only)
Alarms Status Menu Non Adjustable (view only)
Manual Menu
DIG IN Setting Status Displayed on Controller
DIG IN STATUS = DISABLED DISABLED
DIG IN STATUS = 2ND ROOM TEMP inactive = 2ND ROOM TEMP OFF; active = 2ND ROOM TEMP ON
DIG IN STATUS = DOOR SWITCH inactive = DOOR CLOSED; active = DOOR OPEN
DIG IN STATUS = EXT ALARM inactive = NO ALARM; active = EXT ALARM (x)
DIG IN STATUS = SYSTEM OFF inactive = SYSTEM ON; active = SYSTEM OFF
DIG IN STATUS = LIGHT SWITCH inactive = LIGHTS OFF; active = LIGHTS ON
DIG IN STATUS = DEFROST LOCKOUT inactive = DEFROST RELAY AUTO; active = DEFROST LOCKED OUT
DIG IN STATUS = DEFROST INTERLOCK inactive = DEFROST RELAY AUTO; active = DEFROST RELAY OFF
Variables Menu Options for DIG IN 1,2,3 STATUS