KE2 Therm Solutions PN21301 KE2 Temp Valve Control Instruction Manual

: June 13, 2024
: KE2 Therm Solutions

Table of Contents

PN21301 KE2 Temp Valve Control
Product Information
Product Usage Instructions
Read User Manual Online (PDF format)
Download This Manual (PDF format)

PN21301 KE2 Temp Valve Control

Product Information

The KE2 Temp+Valve Control is a controller designed for
temperature air defrost and electronic valve control. It is part of
the thermsolutions KIT PN 21301. The kit includes the following
components:

A (1) KE2 Temp+ Valve controller (pn21393 – controller
only)
B (1) 10′ pressure transducer
E (4) self-tapping mounting screws
F (1) sensor zip tie
G (1) screwdriver
H (2) screws for high voltage shield

In addition to the kit components, standard truck stock items
are required for installation. These include conduit, conduit
connectors, high voltage wires, wire labeling, wire ties, shielded
pair wire, foam insulation, and silicone for sealing box
penetrations.

The KE2 Temp+Valve Control is versatile and can be installed in
various locations such as evaporator cabinets, outside controlled
spaces, adjacent to entrances, side-by-side, above doors, and more.
It also supports remote monitoring, control, and alarm
notifications through RS-485 Modbus communications when used with
the KE2 Edge Manager (KE2-EM).

Furthermore, the controller features a post-defrost indicator to
prevent unnecessary service calls. It alerts the user when it is
coming out of a defrost cycle using the onboard display, displaying
“dEF” and the actual temperature measured by the air sensor until
reaching the setpoint or the defrost time limit.

Product Usage Instructions

Select a suitable mounting location for the KE2 Temp+Valve
Control based on your specific application.
Ensure you have all the necessary supplies listed in the
manual, including conduit, conduit connectors, high voltage wires,
wire labeling, wire ties, shielded pair wire (if needed), foam
insulation (if running wires outside the space), and silicone for
sealing box penetrations.
Wire the controller by following these steps:
Remove the display by loosening the four corner screws. The
display is connected to the lower board by a short ribbon
cable.
Gently move the cover to the side after detaching the four
screws from the lower section.
Remove the high voltage protective cover by unscrewing the two
screws.
With the high voltage cover removed, you will see two screw
terminal connectors. The red 2-position connector is for the
controller’s power.
Attach the temperature sensor, pressure transducer, valve, and
communication wires via the upper conduit connector.

For further information and detailed instructions, please refer
to the KE2 Temp+Valve Control Installation Manual.

This reference should remain on site with the installed KE2 Temp+Valve controller.

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual
thermsolutions KIT PN 21301

Q.3.49 January 2023

What’s in the Kit – Parts List

The following are included in the KE2 Temp + Valve kit, pn 21301:

A (1) KE2 Temp+ Valve controller (pn21393 – controller only)

B (1)10′ pressure transducer

C (1) temperature sensor 45″

D (1) temperature sensor 10′

E (4) self-tapping mounting screws

F (1) sensor zip tie

G (1) screwdriver

H (2) screws for high voltage shield

Supplies List
Standard truck stock items are required to install the controller. A list is provided below
V Conduit to go between the controller and the evaporator.
V (2) Conduit connectors (straight or elbow as required).
V (4) High voltage wires matched to the load of the liquid line solenoid/compressor and the controller.
V Wire labeling (numbers, colors, etc.).
V Additional wire ties.
V 18 gauge twisted shielded pair (if extending sensor wires/adding communication).
V foam insulation (if running wires outside the space).
V silicone (for sealing any box penetrations).

Select Mounting Location
The KE2 Temp + Valve is designed for a wide range of applications, with many potential installation locations. Breaking down the installation location, by application, provides the most helpful reference.

Application
Under counter Walk-in

Locations
Evaporator cabinet Outside controlled space Evaporator cabinet Adjacent to entrance

Side-by-side

Above door

Remote Monitoring, Control, Alarm Notifications
The Temp + Valve includes RS-485 Modbus communications, and can now be accessed remotely using the KE2 Edge Manager (KE2-EM). See page 4 for additional details.
Service Call Saver – Post Defrost Indicator
To eliminate unnecessary service calls, the KE2 Temp + Valve alerts the user when it is coming out of a defrost cycle using the onboard display. The display alternates between dEF and the actual temperature measured by the air sensor. This continues until the temperature has reached setpoint, or for the amount of time set by dFt (Defrost Time) whichever is shorter.

Walk-in

Under Counter

Wine Cabinet

Commercial

Q.3.49 January 2023 Page 2
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Wiring the Controller
The Temp + Valve was designed with functionality in mind. The con-

troller accepts 120V / 208-240V to power the controller through the

lower conduit connection. The temperature sensor, pressure trans-

ducer, valve, and communication wires are attached via the upper

conduit connector.

A When wiring the controller first remove the display by loosening
the four corner screws. The display is connected to the lower board

by a short ribbon cable.

Caution: The board may be damaged if excessive force is used

when removing the cover.

B After the four screws have been detached from the lower section,

the cover may be gently moved to the side.

C Next remove the high voltage protective cover. There are two screws
holding it in place.

D With the high voltage cover removed, the two screw terminal con-

nectors can be seen. The Red 2-position connector is the controller’s

power supply.

E Connect line (L1) to the right most terminal position and neutral
(L2) to the terminal position.

F The liquid line solenoid-compressor contactor relay accepts a vari-
ety of input voltages and is not required to match the controller’s input. See table for relay ratings. The relay uses the 3-position screw terminal to make the connection on the board. It may control either the liquid line solenoid or as a pilot to the compressor contactor. When connecting the wires to the relay, the controller will be breaking one leg of the power.
If solenoid will use the same voltage as controller, one leg of incoming power (L1) supply for the liquid line solenoid should be connected to the common terminal of the liquid line solenoid relay, the left most terminal connection. The other leg of the incoming power (L2) should be connected directly to the solenoid lead. The remaining lead from the solenoid should be connected to the NO (normally open) terminal, the center terminal location.
Proper wiring practices must be followed. Local wiring codes take precedence over any information in this bulletin.
G Replace high voltage shield after wiring is completed.

Relay Rating

Outputs:

(1) Relay Single Pole

FLA

Double Throw Resistive

Pilot Duty

Normally Open Normally Closed 140V 240V 120V 240V 5A 5A 5A 5A 5A 5A 5A 5A 800VA 720VA 290VA 360VA

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual
Low Voltage Connections
H Air Temperature Sensor – The air temperature sensor terminal is lo-
cated on the cover’s circuit board, and is permanently attached. The temperature sensor input consists of the right two terminal positions. The sensor is not polarized and may be connected in either orientation.
The sensor should be fed through the top conduit connection, before being attached to the board.
This terminal is also used for an External System Off signal in certain control modes. See the diagrams at the end of the bulletin for more detailed information.

I Suction Temperature Sensor – The suction temperature sensor
terminal is located on the cover’s circuit board, and is permanently attached. The temperature sensor input consists of the middle two terminal positions. The sensor is not polarized and may be connected in either orientation.
The suction temperature sensor is required when applying the controller with an electronic expansion valve. The sensor’s proximity to the evaporator outlet differs slightly for electronically controlled valves from the placement of a TEV bulb. Due to the more refined control from an electronically controlled valve, the sensor must be placed as close to the outlet of the coil as feasible.
Although the distance from the outlet is different, the nature of the refrigerant’s flow through the tube remains unchanged, thus the orientation of the sensor remains at the 4 or 8 o’clock position. The sensor should be secured to the suction line using the included wire ties designed or low ambient operation. Only zip tie the sensor bulb, DO NOT zip tie the sensor cable.
This terminal is also used for an External System Off signal in certain control modes. See the diagrams at the end of the bulletin for more detailed information.

J
Pressure Transducer The pressure transducer terminal is located on the cover’s circuit board, and is permanently attached. The pressure transducer input consists of the 3 terminal positions on the lefthand side of the board.
When replacing a mechanical expansion valve, the external equalizer can be repurposed for the pressure transducer. Cut and braze a 1/4″ male SAE fitting with schrader valve to the external equalizer. The pressure transducer can alternatively be attached to the suction service port on the evaporator’s suction header. If a suction port is not available, mount the pressure tap on the top of a horizontal section of tube, approx. 3 inches downstream of the suction temperature sensor.

Remote Monitoring, Control, Alarm Notifications
The KE2 Temp + Valve includes RS-485 Modbus communications, and can now be accessed remotely using the KE2 Edge Manager (KE2EM). See page 4 for further details.

Q.3.49 January 2023 Page 3
H

Q.3.49 January 2023 Page 4
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual
Accessing the KE2 Temp + Valve on a Local Area Network
When the KE2 Temp + Valve is connected to the KE2-EM communication device’s serial terminal, the device will find the controller, and provide immediate local network communication. More information on the KE2-EM is found in bulletin Q.5.62.

WiFi to Smartphone, Tablet, Laptop for service

Accessing the KE2 Temp + Valve on the Internet
When used with the KE2-EM , the KE2 Temp + Valve can be accessed remotely through the KE2 Smart Access portal, anywhere Internet service is available. So, there’s no need to worry about your refrigerated products overnight, during holidays, or vacations. Just go online and see, or setup the email/text alarm alerts feature, for instant notification of system issues. More information on KE2 Smart Access is found in bulletin Q.1.34 and A.1.76.

To exsisting network for Internet access (wired or Wi-Fi)
WAN KE2 Switch

TM thermsolutions
Evaporator Efficiency

ENTER Press and hold for manual defrost

BACK

TM thermsolutions
Evaporator Efficiency

ENTER Press and hold for manual defrost

BACK

COM NO NC

Webpage View
From the Webpage you can monitor temperatures, relay status and alarms, as well as make changes to setpoints, and manually control the system.

EARTH EARTH

COM NO NC

KE2-EM LAN

KE2 Wireless Sensors
Wireless Sensor

Wireless Sensor

Power

Low Temp Defrost
– 3. 1

thermsolutions
Temp Air Defrost

Hold for manual defrost

Low Temp Defrost
– 3. 1

KE2 Therm Ethernet Controllers: KE2 Evaporator Efficiency KE2 Evap OEM KE2 Evap RE(2) KE2 Controlled Environment KE2 Compressor Sequencer OEM KE2 Condensor Fan Control

KE2 Therm Modbus Controllers: KE2 Temp + Air Defrost
KE2 Temp + Valve Control KE2 Low Temp
KE2 Adaptive Control

Visit our YouTube channel for videos on the KE2-EM and KE2 Smart Access. Video 123 Intro Walk Through to the KE2-
EM Video 125 The KE2-EM Best Practices for a
Successful Setup Video 062 Communication Made Easy with
KE2 Smart Access
youtube.com/ke2therm

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Q.3.49 January 2023 Page 5

Programming the Controller
Many applications can use the controller’s preset defrosts per day. This automatically spaces the defrosts throughout the day, based on the number of defrost cycles selected. The user can change the number of defrost cycles performed by changing the Defrost per Day setpoint, ranging from 0 to 12. Or, if required, each individual defrost can be scheduled for a specific time of day.

KE2 Temp + Valve Control Basic Navigation Understanding the KE2 Temp + Valve Defrost’s menu structure will simplify configuration. Figure 1 shows the basic button functions, as well as a list of basic setpoints.
NOTE: A brief description of each of the abbreviations is found in the alphabetical list on pages 15-16.

Figure 1

35 1

Indicator lights
Red light – Critical alarm (system is NOT running) Yellow light – Non-critical alarm (system running) Green light – Calling for refrigeration, liquid Line Solenoid (LLS)/compressor contactor relay energized. Green blinking – Waiting on short cycle timer to energize/de-energize LLS/comp. contactor relay.
Access Setpoint mode by pressing and holding the ENTER button until CtL (control type) displays on the screen.
Use arrow to advance through available setpoints.
Press ENTER to view the current setting.
Use the and to change the setpoint.
Press ENTER to move between digits to accelerate the changes.

Press ENTER and hold to confirm each setpoint change Press BACK to escape.

EEV Control

Accessing the Menus

ADVANCED MENUS

BASIC MENUS

CtL
(control type)

EEV Control Only No Thermostat

HGB & EEPR Control

Press and hold for 3 seconds
Subcool Control

Press and hold for 3 seconds
EEV Control

CtL
(control type)
EEV Control Only No Thermostat

HGB & EEPR Control

SHt

EPR or HGB

SUb

SHt

EPR or HGB

Manual Menu

Edt

Only visible if CUS

(custom) is selected

SFS

inP

Pt or tt

Only visible if input

is Pt (pres/temp)

rFG

SSP

Only visible if input is Pt (pres/temp)

tOP

LPC

LPd

LPt

AdF

CSH

dPd

Only visible if CUS

(custom) is selected for dPd (Defrost per

day) tOd d1

Manual Menu

d10

d11

d12

dFt

HAO

LAO

tAd

Adr

Unt

PrO

int

dEr

CLA

FAC

SOF

POS

rEL

Edt Only visible if CUS (custom) is selected Sr SFS Ub
inP Pt or tt
Only visible if input is Pt (pres/temp)
rFG SSP
Only visible if input is Pt (pres/temp)
tOP LPC LPd LPt Adr Unt PrO int dEr CLA FAC SOF POS rEL
Manual Menu

Edt

Only visible if CUS

(custom) is selected

SFS

inP

PSP or tPr

CSH

dPd

Only visible if CUS (custom) is selected

for dPd (Defrost per

day)

tOd

d6 d7 d8

Manual Menu

d10

d11

d12

dFt

HAO

LAO

tAd

Adr

Unt

PrO

int

dEr

CLA

FAC

SOF

POS

rEL

Edt Only visible if CUS (custom) is selected Sr

SFS

inP

rFG

SSP

Only visible if input is Pt (pres/temp)

tOP

HAO

LAO

tAd

Adr

Unt

PrO int

VARIABLES MENU

dEr Non Adustable (view only)

CLA FAC SOF POS rEL

rtP/LLt SYS
SH PrS

SUt

SAt

inL

OPn

COr

ALs

Edt Only visible if CUS (custom) is selected Sr SFS Ub Only visible if input is Pt (pres/temp) under Advanced
rFg SSP tS AdF CSH dPd
Only visible if CUS (custom) is selected for dPd (Defrost per day)
tOd d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 dFt

Edt Only visible if CUS (custom) is selected Sr SFS Ub Only visible if input is Pt (pres/temp) under Advanced Menu
rFg SSP

Edt Only visible if CUS (custom) is selected Sr SFS Ub
tS CSH dPd
Only visible if CUS (custom) is selected for dPd (Defrost per day)
tOd d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 dFt

Footnotes
Not shown if in EEPR, EHGBP, SH, or SUb control, and input is pressure.
Only shown if SUb control is selected. Only shown if SH, SHt, or SUb control is selected.
Only if in SH, SHt, or SUb and Pt is selected . Only shown if input is pressure for EEPR or EHGBP Only shown if in SH, SHt, or SUB and tt selected.
Press & hold ENTER for 3 seconds to activate. Press BACK button to return to normal operation. Press ENTER to enter manual valve control,
& to adjust, and press BACK to exit.

Q.3.49 January 2023 Page 6
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Service Call Saver – Post Defrost Indicator
To eliminate unnecessary/unwarranted service calls, the KE2 Temp + Valve alerts the user when it is coming out of a defrost cycle using the onboard display. The display alternates between dEF and the actual temperature measured by the air sensor. This continues until the temperature has reached setpoint, or for the amount of time set by dFt (Defrost Time) whichever is shorter.

Variables Menu

Name
rtP rtP LLt LLt SYS SYS SH SH PrS Prs SUt SUt SAt SAT inL inL OPn OPn COr COr
ALS ALS

Description
Room Temperature (not shown if in SUb, EEPR or EHGBP control, and input is pressure) Leaving Liquid Temp (Subcool control only) System Mode: Refrigerate, Defrost, Off, System Off (manually) Superheat (only shown if SH or SHt control selected) Pressure (only if input control type is pressure) Suction Temperature (only if in SH or SHt control selected) Saturation Temperature (only if in SH or SHt control selected, and Pt is selected as input) Inlet Temperature (only if in SH or SHt control selected, and tt selected as input) Valve Percent Open Compressor Relay
Alarm Status: See table below for alarm descriptions.

Range
-50ºF to 100ºF -50ºF to 150ºF rEF, dEF, OFF, SOF, ESO 0ºF to 200ºF -14.6 to 150 psig -50ºF to 150ºF -87ºF to 150ºF -50ºF to 150ºF 0 to 100% OFF – On OFF On nOA nOA (no alarm), PSA, SSA, iSA, ASA, HSH, LSH, LPA, Pdt, SCC, HtA, HPA, LtA, LPA, PF

Alarm List

Alarms

Description

CRITICAL System is off.

iSA iSA Inlet Sensor Alarm: Valve closes and turns system off.

PSA PSA Pressure Sensor Alarm: Valve closes and turns system off.

SSA SSA Suction Temperature Sensor Alarm: Valve closes and turns system off.

ASA ASA HPA HPA

Room (Air )Sensor Alarm: Alarm occurs when the room temperature sensor input is open or shorted.
High Pressure Alarm: occurs when the temperature reading is above the Pressure set point + High Alarm Offset setpoint for the amount of time in setpoint High/Low Alarm Delay.; High Temperature or pressure alarm is suppressed while in defrost.

HSH HSH

High Superheat Alarm: Occurs when superheat is 2 or more degrees above setpoint and valve is 100% open for 90 minutes; Clears when superheat is within 2 degrees of setpoint

NON -CRITICAL System is still running, and trying to maintain cooling

HtA HtA
LPA LPA LSH LSH LSA LSA LtA LtA Pdt Pdt PF Pf

High Temperature Alarm: occurs when the temperature reading is above the Temperature set point + Temperature differential set point + High Alarm Offset set point for the amount of time in setpoint High/Low Alarm Delay; High Temperature or pressure alarm is cleared and disabled while in defrost
Low Pressure Alarm: When LPC (Low Pressure Cut Out) is enabled while in refrigeration mode, if compressor is shut off 3 times for pressure going below LPC set point without being satisfied on temperature, set alarm; Alarm is cleared when temperature is satisfied
Low Superheat Alarm: Occurs when superheat is less than 3 degrees for 5 minutes; Clears when superheat is above 3 Fahrenheit degrees Leaving Liquid Temp Sensor Alarm: Leaving Liquid Temp Sensor (Temp 2) input is open or shorted. SUb (subcool) control mode only. Low Temperature Alarm: occurs when the temperature reading is below the Temperature setpoint – Low Alarm Offset setpoint for the amount of time in setpoint High & Low Temperature Alarm Delay; Low temperature or pressure is cleared and disabled when in defrost
Pump Down Timeout Alarm: Occurs when call for pumping system down and the compressor is turned off due to time out instead of pressure reaching LPC setpoint for 2 consecutive times; Alarm is cleared when pressure reaches LPC setpoint instead of timing out.
Power Failure: occurs when the controller has lost power at some point, and controller had CUS (custom defrost schedule) selected under Defrosts Per Day

Short Cycle Compressor Alarm: Occurs when the compressor has to come back on because of

SCC sCC

pressure going above LPC set point without satisfying minimum off time. If this occurs 4 times while in Off mode, can be over multiple cycles, set alarm; Clear alarm if pressure does not go

above LPC setpoint through minimum off time.

LED
Red Red Red Amber Amber Amber
Amber
Amber Amber Amber Amber
Amber Amber
Amber

Refrigerant List

Refrigerant Abbreviation

R-22

R22

R-134a

134

R-404A

404

R-407A

40A

R-407C

40C

R-410A

410

R-717

717

R-422A

42A

R-422D

42d

R-507

507

R-448A

448

R-449A

449

R-450A

450

R-438A

438

R-408A

408

R-409A

409

R-407F

407

R-744

744

R-513A

513

R-458A

458

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Q.3.49 January 2023 Page 7

Basic Menu: “Out of Box” or if Superheat (SHt)

Setpoint
CtL CtL

Description

Range

Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool

SHt, EPr, HGb, SH, SUb SHt epr H b SH SUb

Edt Edt (Expansion device type)

Valve Type: Mechanical (tHr), KE2-HSV (HS), KE2-RSV (rS), tHr, HS, rS, SEi ,SEr CrL, CUS**

SEI, SER, Carel (CrL), Custom (CUS)

tHr HS rS SEi SEr CrL CUS

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS

(valve type) Ub Ub

Only if inP inP(in-

put) is Pt Pt under rFg rF

Advanced Menu

SSP ssp

tS tS

AdF AdF

CSH CSH

dPd dPd

tOd tOd

d1 d1

d2 d2

d3 d3

d4 d4

Only if dPd (Defrosts per Day) is CUS

d5 d5 d6 d6 d7 d7

d8 d8

d9 d9

d10 d10

d11 d11

d12 d12

dFt dft

Step Rate Steps Full Stroke Motor Type
Refrigerant Type
Superheat Setpoint Temperature Setpoint Air Differential Compressor Starts/Hour Maximum Defrost Per Day Time of Day Start time of Defrost #1 Start time of Defrost #2 Start time of Defrost #3 Start time of Defrost #4 Start time of Defrost #5 Start time of Defrost #6 Start time of Defrost #7 Start time of Defrost #8 Start time of Defrost #9 Start time of Defrost #10 Start time of Defrost #11 Start time of Defrost #12 Defrost Time

30 – 400 20(0)-640(0) Uni-(unipolar), bi (bipolar) Uni bi
See Refrigerant List on Page 6
5.0ºF (2.8K) to 50ºF (28K) -50°F (-45°C) to 100°F (38°C) 1.0°F (0.5K) to 30°F (17K) 5 (Off) to 10 0 to 12, CUS 00:00 to 23:59 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 6 min to 720 min

Selecting fewer than 5 compressor starts per hour results in the starts per hour feature being turned off. The compressor will then function on temperature only. Selecting CUS (custom) unlocks additional Setpoints. Last zero is truncated on the display.

Default
SHt
rS
30 50(0)*** Unipolar
404
8.0°F (4.4K) 35.0°F (9.7°C) 2.0°F (1.1K)
6 4 12:00 diS (disabled) diS diS diS diS diS diS diS diS diS diS diS 45 min

Q.3.49 January 2023 Page 8
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Advanced Menu: “Out of Box” or if Superheat (SHt)

Setpoint
CtL CtL

Description

Range

Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool

SHt, EPr, HGb, SH, SUb SHt epr H b SH SUb

Edt Edt (Expansion device type)

Valve Type: Mechanical (tHr), KE2-HSV (HS), KE2-RSV (rS), tHr, HS, rS, SEi ,SEr CrL, CUS**

SEI, SER, Carel (CrL), Custom (CUS)

tHr HS rS SEi SEr CrL CUS

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS
(valve type) Ub Ub

inP inP

Only if inP (input) is Pt

rFG rF

SSP SSP

Only if inP (input) is Pt

tOP

LPC LPC

LPd LPd

LPt LPt

tS tS

AdF AdF

CSH CSH

dPd dPd

tOd tOd

d1 d1

d2 d2

d3 d3

d4 d4

Only if dPd (Defrosts per Day) is CUS

d5 d5 d6 d6 d7 d7

d8 d8

d9 d9

d10 d10

d11 d11

d12 d12

dFt dft

HAO HAO

LAO LAO

tAd tAd

Adr Adr

Unt Unt

PrO PrO

int int

dEr dEr

CLA CLA

MANUAL CONTROL OPTIONS

FAC FAC SOF SOF POS POS

rEL reL

Step Rate Steps Full Stroke Motor Type Input type when CtL is SH: pressure/temp (Pt) or temperature/temperature (tt)
Refrigerant Type
Superheat Setpoint
Maximum (Top) Operating Pressure setpoint
Low Pressure Cut Out Setpoint Low Pressure Cut Out Differential Low Pressure Cut Out Delay Temperature Setpoint Air Differential Compressor Starts/Hour Maximum Defrost Per Day Time of Day Start time of Defrost #1 Start time of Defrost #2 Start time of Defrost #3 Start time of Defrost #4 Start time of Defrost #5 Start time of Defrost #6 Start time of Defrost #7 Start time of Defrost #8 Start time of Defrost #9 Start time of Defrost #10 Start time of Defrost #11 Start time of Defrost #12 Defrost Time High Alarm Offset Low Alarm Offset Temp Alarm Delay Address, Mod Bus Communications Units for temperature display Proportional Integral Derivative Manually Clear Alarms Return Controller to Factory Default Settings Manually Enter System Off Mode Manually Adjust Valve Position Manually Control Relay

30 – 400 20(0)-640(0) Uni-(unipolar), bi (bipolar) Uni bi
Pt, tt Pt tt
See Refrigerant List on Page 6
5ºF (2.8K) to 50ºF (28K) Standard: 10 psig to 150 psig R-410A 10psig to 300 psig R-744 10 psig to 500 psig -5 psig to 138 psig 1 to 50 psig O to 15 min. -50°F (-45°C) to 100°F (38°C) 1.0°F (0.5K) to 30.0°F (17K) 5 (Off) to 10 0 to 12, CUS 00:00 to 23:59 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 00 – 23 6 min to 720 min. 1°F (1K) to 10°F (6K) 1°F (1K) to 10°F (6K) 1 min. to 180 min 1 to 247 FAH or CEL 0 to 255 0 to 255 0 to 255
0 to 100%

Default
SHt
rS
30 50(0)*** Unipolar
Pt
404
8.0°F (4.4K)
150 psig
8.0 psig 15.0 psig O min. 35.0°F (4.4K) 2.0°F (1.1K)
6 4 12:00 diS (disabled) diS diS diS diS diS diS diS diS diS diS diS 45 min. 5.0°F 3.0°F 90 min. 1 FAH 3 5 3

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Q.3.49 January 2023 Page 9

Basic Menu: EEV Control Only – No Thermostat (SH)

Setpoint
CtL CtL

Edt Edt (Expansion device type)

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS

(valve type) Ub Ub

Only if inP (input) is Pt

rFG rF

SSP SSP

Description
Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool
Valve Type: Mechanical (tHr), KE2-HSV (HS), KE2-RSV (rS), SEI, SER, Carel (CrL), Custom (CUS) Step Rate Steps Full Stroke Motor Type Refrigerant Type Superheat Setpoint

Range
SHt, EPr, HGb, SH, SUb SHt epr H b SH SUb tHr, HS, rS, SEi ,SEr CrL, CUS** tHr HS rS SEi SEr CrL CUS 30 – 400 20(0)-640(0)*** Uni-(unipolar), bi (bipolar) Uni bi
See Refrigerant List on Page 6
5.0ºF (2.8K) to 50.0ºF (28K)

Selecting fewer than 5 compressor starts per hour results in the starts per hour feature being turned off. The compressor will then function on temperature only. ** Selecting CUS (custom) unlocks additional Setpoints. *** Last zero is truncated on the display.

Default
SH
rS
30 50(0)*** Unipolar
404 8°.0F (4.4K)

Q.3.49 January 2023 Page 10
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Advanced Menu: EEV Control Only – No Thermostat (SH)

Setpoint
CtL CtL

Edt Edt (Expansion device type)

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS
(valve type) Ub Ub

inP inP

Only if inP (input) is Pt

rFG rF

SSP SSP

tOP

Only if inP (input) is Pt

LPC LPC LPd LPd

LPt LPt

Not shown if SH (Superheat) is selected

tAd tAd

Adr Adr

Unt Unt

PrO PrO

int int

dEr dEr

CLA CLA

MANUAL CONTROL OPTIONS

FAC FAC SOF SOF POS POS

rEL reL

Description
Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool
Valve Type: Mechanical (tHr), KE2-HSV (HS), KE2RSV (rS), SEI, SER, Carel (CrL), Custom (CUS)
Step Rate Steps Full Stroke Motor Type Input type when CtL is SH: pressure/temp (Pt) or temperature/temperature (tt)
Refrigerant Type
Superheat Setpoint
Maximum (Top) Operating Pressure setpoint
Low Pressure Cut Out Setpoint Low Pressure Cut Out Differential Low Pressure Cut Out Delay
Temp Alarm Delay
Address, Mod Bus Communications Units for temperature display Proportional Integral Derivative Manually Clear Alarms Return Controller to Factory Default Settings Manually Enter System Off Mode Manually Adjust Valve Position Manually Control Relay

Range
SHt, EPr, HGb, SH, SUb SHt epr H b SH SUb tHr, HS, rS, SEi ,SEr CrL, CUS** tHr HS rS SEi SEr CrL CUS 30 – 400 20(0)-640(0)*** Uni (unipolar), bi (bipolar) Uni bi Pt, tt Pt tt
See Refrigerant List on Page 6
5.0ºF (2.8K) to 50.0ºF (28K) Standard: 10 psig to 150 psig R-410A 10psig to 300 psig R-744 10 psig to 500 psig -5 psig to 138 psig 1.0 to 50.0 psig 0 to 15 min
1 min to 180 min
1 to 247 FAH or CEL 0 to 255 0 to 255 0 to 255
0 to 100%

Default
SH
rS
30 50(0)*** Unipolar
Pt
404 8.0°F (4.4K)
150 psig
8.0 psig 15.0 psig
0 min 90 min
1 FAH 3 5 3

Selecting fewer than 5 compressor starts per hour results in the starts per hour feature being turned off. The compressor will then function on temperature only. ** Selecting CUS (custom) unlocks additional Setpoints. *** Last zero is truncated on the display.

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Q.3.49 January 2023 Page 11

Basic Menu: Hot Gas Bypass (HGb) or EEPRV (EPr)

Setpoint

Description

Range

CtL CtL

Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool

SHt, EPr, HGb, SH, SUb SHt epr H b SH SUb

Hot Gas Bypass Valve

Edt Edt (Expansion device

type)

Options
Electronic Pressure Regulating Valve

SDR-3(Sd3), SDR-4 (Sd4), Custom (CUS)
CDS 2-7 (Cd2), CDS 9-17 (Cd9 ), ESR12 (ES1), ESR20 (ES2), KVS15 (dS1), KVS42 (dS4) , Custom

Sd3, Sd4, CUS** Sd3 Sd4 CUS Cd2, Cd9, ES1, ES2, dS1, dS4, CUS Cd2 Cd9 ES1 ES2 dS1

Options

(CUS)

dS4 CUS

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS

Step Rate Steps Full Stroke

30 – 400 20(0)-640(0)***

(valve type) Ub Ub

Motor Type

Uni-(unipolar), bi (bipolar) Uni bi

Only if inP (input) is

PrS under Advanced PSP psp

Pressure Setpoint

0 psig to 138 psig

Only if inP inP (input) is tPr tPr

tS TS

Temperature Setpoint

-50.0°F (-45°C) to 100°F (38°C)

CSH CsH

Compressor Starts/Hour Maximum

5 (Off)* to 10

dPd dpd

Defrost Per Day

0 to 12, CUS**

tOd tOd

Time of Day

00:00 to 23:59

d1 d1

Start time of Defrost #1

00 – 23

d2 d2

Start time of Defrost #2

00 – 23

d3 d3

Start time of Defrost #3

00 – 23

d4 d4

Start time of Defrost #4

00 – 23

d5 d5

Only if dPd (Defrosts per Day) is CUS

d6 d6 d7 d7

Start time of Defrost #5 Start time of Defrost #6 Start time of Defrost #7

00 – 23 00 – 23 00 – 23

d8 d8

Start time of Defrost #8

00 – 23

d9 d9

Start time of Defrost #9

00 – 23

d10 d10

Start time of Defrost #10

00 – 23

d11 d11

Start time of Defrost #11

00 – 23

d12 d12

Start time of Defrost #12

00 – 23

dFt dft

Defrost Time

6 min to 720 min

Default
HGb / EPr
Sd4
Cd9
30 50(0)*** Unipolar
50 psig
35.0°F (9.7°C)
6 4 12:00 diS (disabled) diS diS diS diS diS diS diS diS diS diS diS 45 min

Selecting fewer than 5 compressor starts per hour results in the starts per hour feature being turned off. The compressor will then function on temperature only. ** Selecting CUS (custom) unlocks additional Setpoints. *** Last zero is truncated on the display.

Q.3.49 January 2023 Page 12
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Advanced Menu: Hot Gas Bypass (HGb) or EEPRV (EPr)

Setpoint

Description

Range

CtL CtL

Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool

SHt, EPr, HGb, SH, SUb SHt epr H b SH SUb

Hot Gas Bypass Valve

Edt Edt (Expansion device

type)

Options
Electronic Pressure Regulating Valve

SDR-3(Sd3), SDR-4 (Sd4), Custom (CUS)
CDS 2-7 (Cd2), CDS 9-17 (Cd9 ), ESR12 (ES1), ESR20 (ES2), KVS15 (dS1), KVS42 (dS4) , Custom

Sd3, Sd4, CUS** Sd3 Sd4 CUS Cd2, Cd9, ES1, ES2, dS1, dS4, CUS Cd2 Cd9 ES1 ES2 dS1

Options

(CUS)

dS4 CUS

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS

Step Rate Steps Full Stroke

30 – 400 20(0)-640(0)***

(valve type) Ub Ub

Motor Type

Uni-(unipolar), bi (bipolar) Uni bi

inP inP

Input type when CtL is HgB: pressure (PrS )or temperature (tPr)

PrS, tPr Prs tPr

Only if inP (input) is PrS under Advanced PSP psp

Pressure Setpoint

0 psig to 138 psig

Only if inP inP (input) is tPr tPr

tS TS

Temperature Setpoint

-50.0°F (-45°C) to 100°F (38°C)

CSH CsH

Compressor Starts/Hour Maximum

5 (Off)* to 10

dPd dpd

Defrost Per Day

0 to 12, CUS**

tOd tOd

Time of Day

00:00 to 23:59

d12 d12

Start time of Defrost #12

00 – 23

d11 d11

Start time of Defrost #11

00 – 23

d10 d10

Start time of Defrost #10

00 – 23

d9 d9

Start time of Defrost #9

00 – 23

Only if dPd (Defrosts per Day) is CUS

d8 d8 d7 d7 d6 d6

Start time of Defrost #8 Start time of Defrost #7 Start time of Defrost #6

00 – 23 00 – 23 00 – 23

d5 d5

Start time of Defrost #5

00 – 23

d4 d4

Start time of Defrost #4

00 – 23

d3 d3

Start time of Defrost #3

00 – 23

d2 d2

Start time of Defrost #2

00 – 23

d1 d1

Start time of Defrost #1

00 – 23

dFt dft

Defrost Time

6 min to 720 min

HAO HAO

High Alarm Offset

1.0°F (1K) to 10.0°F (1K)

LAO LAO

Low Alarm Offset

1.0°F (1K) to 10.0°F (1K)

tAd tAd

High & Low Temp or Pressure Alarm Delay

1 min to 180 min

Adr Adr

Address, Mod Bus Communications

1 to 247

Unt Unt

Units for temperature display

FAH or CEL FAH CEL

PrO PrO

Proportional

0 to 255

int int

Integral

0 to 255

dEr dEr

Derivative

0 to 255

Default
HGb / EPr
Sd4
Cd9
30 50(0)*** Unipolar
tPr
50 psig
35.0°F (9.7°C)
6 4 12:00 diS (disabled) diS diS diS diS diS diS diS diS diS diS diS 45 min 5.0°F 3.0°F 90 min 1 FAH 3 5 3

MANUAL CONTROL OPTIONS

CLA CLA FAC FAC SOF SOF POS POS rEL reL

Manually Clear Alarms Return Controller to Factory Default Settings Manually Enter System Off Mode Manually Adjust Valve Position Manually Control Relay

0 to 100%

Selecting fewer than 5 compressor starts per hour results in the starts per hour feature being turned off. The compressor will then function on temperature only. ** Selecting CUS (custom) unlocks additional Setpoints. *** Last zero is truncated on the display.

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Basic Menu: Subcool (SUb)

Setpoint
CtL CtL

Description
Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool

Edt Edt (expansion device type)

Valve Type: Mechanical (tHr), KE2-HSV (HS), KE2RSV (rS), SEI, SER, Carel (CrL), Custom (CUS)

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS
(valve type) Ub Ub

inP inP

Only if inP (input) is Pt

rFG rF

SSP SSP

tS tS

Step Rate Steps Full Stroke Motor Type Input type when CtL is SH: pressure/temp (Pt) or temperature/temperature (tt)
Refrigerant Type
Superheat Setpoint Temperature Setpoint

** Selecting CUS (custom) unlocks additional Setpoints. *** Last zero is truncated on the display.

Q.3.49 January 2023 Page 13
Default
SUb
rS 30 50(0)*** Unipolar Pt 404 8.0°F (4.4K) 35.0°F (4.4K)

Q.3.49 January 2023 Page 14
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Advanced Menu: Subcool (SUb)

Setpoint
CtL CtL

Description
Control Type – EEV+Temp, EEV Only, EEPR, EHGBP, Subcool

Edt Edt (expansion device type)

Valve Type: Mechanical (tHr), KE2-HSV (HS), KE2RSV (rS), SEI, SER, Carel (CrL), Custom (CUS)

Only if CUS CUS Sr Sr is used for Edt Edt SFS SFS
(valve type) Ub Ub

inP inP

Only if inP (input) is Pt

rFG rF

SSP SSP

Step Rate Steps Full Stroke Motor Type Input type when CtL is SH: pressure/temp (Pt) or temperature/temperature (tt)
Refrigerant Type
Superheat Setpoint

Only if inP (input) is Pt

tOP

Maximum (Top) Operating Pressure setpoint

tS tS

HAO HAO

LAO LAO

tAd tAd

Adr Adr

Unt Unt

PrO PrO

int int

dEr dEr

CLA CLA

MANUAL CONTROL OPTIONS

FAC FAC SOF SOF POS POS

rEL reL

Temperature Setpoint High Alarm Offset Low Alarm Offset Temp Alarm Delay Address, Mod Bus Communications Units for temperature display Proportional Integral Derivative Manually Clear Alarms Return Controller to Factory Default Settings Manually Enter System Off Mode Manually Adjust Valve Position Manually Control Relay

Range
SHt, EPr, HGb, SH, SUb SHt epr H b SH SUb tHr, HS, rS, SEi ,SEr CrL, CUS** tHr HS rS SEi SEr CrL CUS 30 – 400 20(0)-640(0)*** Uni-(unipolar), bi (bipolar) Uni bi Pt, tt Pt tt
See Refrigerant List on Page 6
5ºF (2.8K) to 50ºF (28K) Standard: 10 psig to 150 psig R-410A 10psig to 300 psig R-744 10 psig to 500 psig -50°F (-45°C) to 100°F (38°C) 1°F (1K) to 10°F (6K) 1°F (1K) to 10°F (6K) 1 min to 180 min 1 to 247 FAH or CEL 0 to 255 0 to 255 0 to 255
0 to 100%

** Selecting CUS (custom) unlocks additional Setpoints. ***Last zero is truncated on the display.

Default
SUb
rS
30 50(0)*** Unipolar
Pt
404 8.0°F (4.4K)
150 psig
35.0°F (4.4K) 5.0°F 3.0°F 90 min 1 FAH 3 5 3

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Q.3.49 January 2023 Page 15

Abbreviations – Alphabetical Listing

Abbreviation
AdF AdF Adr Adr ALS ALS
ASA ASA
bi bi
Cd2 CD2 Cd9 CD9 CEL CEL CLA CLA COr COr CrL CrL

Name
Air Differential Modbus Address Alarm Status Room/Air Sensor Alarm
Bipolar CDS 2-7 Valve CDS 9 Valve Celsius Clear Alarms Manually Compressor Relay Carel Valve

Type
Setpoint Setpoint Variable Alarm
Setpoint Setpoint Setpoint Setpoint Manual Variables Setpoint

CtL CtL Control Type

Setpoint

CUS d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 dEr dFt diS dPd ds1 ds4 Edt EPr ES1 ES2 ESO FAH FAC HAO
HGb

CUS d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 dEr dFt diS dPd
ds1
ds4 Edt EPr ES1 ES2 ESO FAH FAC HAO
HB

Custom Defrost #1 Defrost #2 Defrost #3 Defrost #4 Defrost #5 Defrost #6 Defrost #7 Defrost #8 Defrost #9 Defrost #10 Defrost #11 Defrost #12 Derivative Defrost Time Disabled Defrost Per Day Danfoss KVS 15 Valve Danfoss KVS 42 Valve Expansion Device Type Electronic Pressure Regulating ESR 12 Valve ESR 20 Valve External System Off Fahrenheit Factory Default High Alarm Offset
Hot Gas Bypass Valve

Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Setpoint Manual Setpoint
Setpoint

HPA HPA High Pressure Alarm

Alarm

HS HS KE2-HSV Valve HSH HSH High Superheat Alarm

Setpoint Alarm

HtA HtA
inL inL inP inP int int iSA iSA LAO LAO LPA LPA LPC LPC

High Temperature Alarm
Inlet Temperature Input Type Integral Inlet Sensor Alarm Low Alarm Offset Low Pressure Alarm Low Pressure Cut Out

Alarm
Variable Setpoint Setpoint Alarm Setpoint Alarm Setpoint

Description
Number of degrees air temp must be above room temp setpoint (tS) to return system to refrigeration mode Controller’s address for communications Pressing ENTER from ALS will show active alarm list; scroll through list using up or down arrow. Alarm occurs when the room temperature sensor input is open or shorted
Option under (Ub) Motor Type when using a CUS (custom) valve Option under EDt valve selection for pressure regulating valves Option under EDt valve selection for pressure regulating valves Option for temperature units Allows user to manually clear alarms Current state of liquid line solenoid/compressor relay Option under EDt (Expansion Device Type) when SH (Superheat) is selected Select the type of control: SH (Electronic Expansion Valve), SHt (Electronic Expansion Valve with Thermostat) EPR (Electronic Pressure Regulating Valve), HGB (Electronic Hot Gas Bypass Valve), Used for Custom defrost schedule or Custom valve option Start time of Defrost #1 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #2 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #3 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #4 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #5 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #6 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #7 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #8 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #9 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #10 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #11 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Start time of Defrost #12 when in defrosts per day (dPd) is custom (CUSt); based on 24-hour clock Should not be adjusted unless instructed by KE2 Therm technical support Maximum time system is allowed in defrost Choice under Start time when setting CUS (custom) dPd (defrosts per day) Number of defrosts per day 0-12, CUS (custom) Option under EDt (valve selection) for pressure regulating valves Option under EDt (valve selection) for pressure regulating valves Valve Selection Type of control option under CtL (control type) Option under EDt valve selection for pressure regulating valves Option under EDt valve selection for pressure regulating valves When 3rd party signal present valve closes Default for all temperatures displayed Manual option to return controller to Factory Default settings Number of degrees above the Temperature Setpoint (tS) for a High Temp Alarm (HtA) condition.
Option under CtL (Control Type)
Occurs when the temperature reading is above the Pressure setpoint + High Alarm Offset setpoint for the amount of time in setpoint High Low Alarm Delay.; High Temperature or pressure alarm is cleared and disabled while in defrost. Electronic expansion valve option under EDt (valve selection) Occurs when superheat is 2 or more degrees above set point and valve is 100% open for 90 minutes; Clears when superheat is within 2 degrees of setpoint Occurs when the temperature reading is above the Temperature set point + Temperature differential set point + High Alarm Offset set point for the amount of time in set point High & Low Alarm Delay; High Temperature or pressure alarm is cleared and disabled while in defrost
Temperature measured at the evaporator inlet. Only if SH and tt are selected as the input
Select type of control: EPR & HGb – PrS (pressure) or tPr (temp); EEV – Pt (pressure/temp)or tt (temp/temp)
A coefficient to the valve control algorithm that increases valve responsiveness
Valve closes and turns system off.
Number of degrees below the Temperature Setpoint (tS) for a Low Temp Alarm (LtA) condition. Pressure is below Low Pressure Cutout (LPC) after 3 consecutive attempts to start the system Pressure at which controller de- energizes the Compressor/Liquid Line Solenoid relay (COr)

Q.3.49 January 2023 Page 16
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Abbreviations – Alphabetical Listing (continued)

Abbreviation
LPd LPd
LPt LPt LSA LSA

Name Low Pressure Cut Out Differential Low Pressure Cut Out Delay Leaving Liquid Temp Sensor Alarm

Type Setpoint Setpoint Alarm

Description Psi above Low Pressure Cutout (LPC) at which Compressor/Liquid Line Solenoid relay (COr) is energized Time delay before Low Pressure Alarm (LPA) is activated. 0 = Disabled. Leaving Liquid Temp Sensor (Temp 2) input is open or shorted. SUb (subcool) control mode only.

LSH LSH Low Superheat Alarm LLt LLt Leaving Liquid Temp

Alarm Variable

Occurs when superheat is 2 or more degrees above set point and valve is 100% open for 90 minutes,; Clears when superheat is above 3 deg F
Temperature of the liquid leaving the heat exchanger

LtA LtA
nOA nOA OFF OFF On On OPn OPn

Low Temperature Alarm
No Alarm Compressor Relay OFF Compressor Relay On Valve Percent Open

Alarm
Variable Variable Variable Variables

Average temperature is below the Temperature Setpoint (tS) – Low Alarm Offset (LAO) for the amount of time in the High & Low Alarm Delay (tAd)
Indicates system is clear of alarm conditions Status of Compressor Relay – OFF Status of Compressor Relay – On The percentage the valve is open from 0 to 100%

Pdt Pdt Pump down Timeout Alarm

Occurs when call for pumping system down and the compressor is turned off due to time out instead of pressure Alarm reaching LPC setpoint for 2 consecutive times; Alarm is cleared when pressure reaches LPC setpoint instead of
timing out.

PF PF
POS POS PrO PrO PrS PrS PSA PSA PSP PSP Pt Pt rEL rEL

Power Failure
Manually Adjust Valve Position Proportional Pressure Pressure Sensor Alarm Pressure Setpoint Pressure/Temperature Relay Control

Alarm
Manual Setpoint Setpoint Alarm Setpoint Setpoint Manual

Occurs when the controller has lost power at some point, and controller had CUS (custom defrost schedule) selected, under Defrosts Per Day (dPd) Manually open or close the electronic valve in percentage increments (1%, 10%, or 100% increments) A coefficient to the valve control algorithm that increases valve responsiveness Option for InP (input type) when HGB or EPR are selected for CtL (control type) Suction pressure sensor is shorted, open or pressure out of range.
Available when HGB or EEPR control is selected. Target pressure for control algorithm.
Option for InP (input type) when SH (EEV) is selected for CtL (control type) Manually control the relay

rFG rF Refrigerant

Setpoint Type of refrigerant used in the system

rS rS KE2-RSV rtP rtP Room Temp

Setpoint Electronic Expansion Valve Option under EDt (Expansion Device Type) Variable Temperature of the refrigerated space; Not shown if in EEPR or EHGBP control and input is pressure.

SAt SAt Saturation Temperature

Variable

Saturation temperature as calculated by the controller,Displayed if SH is selected for CtL (control type), and Pt (pressure/temp) is selected as InP (input type), (requires pressure transducer and T1 sensor)

SCC SCC
SD3 SD3 SD4 SD4 SFS SFS SH SH SH SH SHt SHt SOF SOF

Short Cycle Compressor

Alarm

SDR-3 Valve SDR-4 Valve Steps Full Stroke Superheat Control Superheat Superheat + Temperature Control System Off

Setpoint Setpoint Setpoint Setpoint Variable Setpoint Manual

Occurs when the compressor has to come back on because of pressure going above LPC setpoint without satisfying minimum off time. If this occurs 4 times while in Off mode, can be over multiple cycles, set alarm; Clear alarm if pressure does not go above LPC setpoint through minimum off time. Electronic Hot Gas Bypass Valve under EDt (Expansion Device Type) Electronic Hot Gas Bypass Valve under EDt (Expansion Device Type) When CUS (custom) valve is selected, the number of steps to fully open or close the valve Control type under CtL when EEV Only is used. Displayed if SHt is selected for CtL (Control Type) Control type under CtL when EEV+ Temperature is used. Manually enter system off mode

Sr Sr Step Rate SSA SSA Suction Temperature Sensor

Setpoint Alarm

When CUS (custom) valve is selected, the steps per second in opening or closing the valve (provided by the valve manufacturer)
Valve closes and turns system off.

SSP SSP Superheat Setpoint SUb SUB Subcool

Setpoint Setpoint

The superheat value that the controller will maintain, not applicable if Edt (Expansion Device Type) = tHR (mechanical)
Control type under CtL when used for a subcooler application.

SUt SUt Suction Temperature

Variable Only if in SH (EEV) control

SYS SYS
tAd tAd tHr tHr tOd tOd
tOP tOP

System Mode Temperature Alarm Delay Mechanical Valve Time of Day Maximum (Top) Operating Pressure

Variable Setpoint Setpoint Setpoint Setpoint

Displays mode of system operation: rEF (refrigerate), dEF (defrost), OFF, SOF (system manually shut off) High / Low Temperature Alarm Delay Amount of time to delay a high temp or low temp alarm Mechanical Valve selection under EDt (Expansion Device Type) Used to set the time of day on the controller; Only displayed when dPd (defrosts per day) is CUS (custom) The maximum allowable suction pressure, not applicable if Edt (Expansion Device Type) = tHR (mechanical)

tS tS Temperature Setpoint

Setpoint Room temperature to be maintained

tt tt
tPr tPr Ub Ub Unt Unt

Temperature/Temperature
Temperature Motor Type Temp Units

Setpoint
Setpoint Setpoint Setpoint

Option for InP (input type) when HS (EEV) is selected for CtL (control type)
Option for InP (input type) when HGB or EPR are selected for CtL (control type) When CUS (custom) valve is selected, the type of valve motor: Uni (unipolar), bi (bipolar) Fahrenheit (FAH) or Celsius (CEL)

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Q.3.49 January 2023 Page 17

Custom Defrost Setup The following steps will guide you through the setup of the KE2 Temp’s custom defrost feature.

STEP 3 Press the played.

up arrow until CUS is dis-

tod

Please note, the KE2 Temp + Valve Control does not have an on-board battery backup. If the controller loses power, the defrost schedule may be offset by the amount of time the controllers is without power. Abbreviations:
CUS = custom d1 = custom defrost 1 diS = disabled dpd = defrosts per day ts = temperature setpoint tod = time of day
35 1

STEP 1 Press and hold the displayed on the LEDs
tS

button, tS is

STEP 2 Press the played,

up arrow until dPd is dis-

dpd

then press displayed.

, 6 (default) will be

CUS

Press and hold the

button for 3

seconds until the dPd is displayed.

dpd

STEP 4 Press the up arrow until tod (time of day) is displayed,
tod
then press
Use the up arrow and down arrow to set the time.
Note: The time is displayed in military time (24-hr clock) The 1st 2 digits are the hour. The minutes are after the decimal. Since there are only 3 digits, the time will be set to the nearest 10 minutes. See examples below. Examples:
8:10 am would be 8.1 on the controller’s display
d8 1

STEP 5 Press the up arrow to display Defrost 1 (d1).
dd 1

To set the first defrost, press button.
diS (disabled) will be displayed.
dis
Use the down arrow to set the defrost time.
Note: Defrost times may only be set on the hour. Example:
2:00 am would be 2
dd2

Once the correct time is displayed,

press and hold the

button

until d1 is displayed.

dd 1

4:32 p.m. would be 16.3 on the controller’s display.
163

STEP 6 Repeat steps as necessary for d2 to d12.
dd2 d 12

After the time is set, press and hold the button for 3 seconds, until tOd is
displayed

STEP 7

Press the

button to save set-

tings, and return to the main screen

(room temp will be displayed).

Q.3.49 January 2023 Page 18
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

CONTROL TYPE: Superheat and Temperature w. Air Defrost

Step 1

Step 2

Control Type

Step 3 Superheat & Temperature

Input

Step 4 Pressure/Temperature

Pressure Transducer Suction Temperature

LLS/Comp. Contactor Relay Wiring
Put jumper wire from L1 (terminal 1) to COM (terminal 5) 54 3 2 1
COM NC NO L2 L1 Relay
115/230 VAC

RSV

LLS / COMP CONTACTOR

L1 Neutral (L2)

120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY

Evaporator
Return Air Temperature

Shield BA+

Communication ModBus communication can be connected to existing Building Management System (BMS) or to KE2 Therm’s KE2-EM Communication device. Using the KE2-EM allows quick & easy access to monitor & control the KE2 Temp + Valve, as well as receive alarm notifications via text or email. For more information see Bulletin B.5.10.

CONTROL TYPE: Superheat Only

Step 1

Step 2

Control Type

Pressure Transducer Suction Temperature

Open = Run Short = Off

External System

Off

Superheat

Step 3

Input

Step 4 Pressure/Temperature

RSV

Evaporator

Shield BA+

KE2 Temp + Valve should be supplied with signal from 3rd party to close valve when function not desired. The controller relay will switch with 3rd party signal. The relay will be energized while the system is running. Communication ModBus communication can be connected to existing Building Management System (BMS) or to KE2 Therm’s KE2-EM Communication device. Using the KE2-EM allows quick & easy access to monitor & control the KE2 Temp + Valve, as well as receive alarm notifications via text or email. For more information see Bulletin B.5.10.
© Copyright 2023 KE2 Therm Solutions, Inc., Washington, Missouri 63090

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual
CONTROL TYPE: Hot Gas Bypass: Temperature Control

Step 1

Step 2

Step 3

Control Type

Hot Gas Bypass

Input

Step 4 Temperature

Open = Run External Short = Off System Off*

Discharge Air Temperature

Evaporator

RSV
Electric Hot Gas Bypass Valve

Shield BA+

KE2 Temp + Valve should be supplied with signal from 3rd party to close valve when function not desired. Communication ModBus communication can be connected to existing Building Management System (BMS) or to KE2 Therm’s KE2-EM Communication device. Using the KE2-EM allows quick & easy access to monitor & control the KE2 Temp + Valve, as well as receive alarm notifications via text or email. For more information see Bulletin B.5.10.
CONTROL TYPE: Hot Gas Bypass: Pressure for Capacity Control

Step 1

Step 2

Step 3

Control Type

Hot Gas Bypass

Input

Step 4

Pressure

Pressure Transducer Open = Run External Short = Off System Off*

Q.3.49 January 2023 Page 19

Evaporator

Electric Hot Gas Bypass Valve

Shield BA+

*KE2 Temp + Valve should be supplied with signal from 3rd party to close valve when function not desired. Communication ModBus communication can be connected to existing Building Management System (BMS) or to KE2 Therm’s KE2-EM Communication device. Using the KE2-EM allows quick & easy access to monitor & control the KE2 Temp + Valve, as well as receive alarm notifications via text or email. For more information see Bulletin B.5.10.

Q.3.49 January 2023 Page 20

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

CONTROL TYPE: Electronic Evaporator Pressure Regulator: Discharge or Return Air Temperature

Step 1

Step 2

Step 3

Control Type
CASES

Evaporator Pressure Regulating

Open = Run External Short = Off System Off*

Input

Step 4 Temperature

Discharge Air Temperature
Evaporator

*KE2 Temp + Valve should be supplied with signal from 3rd party to close valve when function not desired.

Communication

ModBus communication can be con-

nected to existing Building Management

System (BMS) or to KE2 Therm’s

RSV

KE2-EM Communication device.

Using the KE2-EM allows quick & easy access to monitor & control the KE2 Temp

Valve, as well as receive alarm notifications via text or email. For more information see Bulletin B.5.10.

Shield BA+

WALK-INS
Open = Run External Short = Off System Off*

RSV
Evaporator
Return Air Temperature

Shield BA+

CONTROL TYPE: Electronic Evaporator Pressure Regulator: Pressure Control

SStteepp 11

Step 2

Step 3

Control Type Pressure Transducer

Evaporator Pressure Regulating

Open = Run External Short = Off System Off*

Input

Step 4

Pressure

RSV EEPRV
Evaporator

*KE2 Temp + Valve should be supplied with signal from 3rd party to close valve when function not desired.
Communication ModBus communication can be connected to existing Building Management System (BMS) or to KE2 Therm’s KE2-EM Communication device.
Using the KE2-EM allows quick & easy access to monitor & control the KE2 Temp

Valve, as well as receive alarm notifications via text or email. For more information see Bulletin B.5.10.

Shield BA+

KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

MULTI-EVAPORATOR SETUP
Master: Controller 1 – Superheat & Temperature (SHt)
because it also controls temperature

Step 1

Step 2

Control Type Pressure Transducer

Superheat & Temperature

Suction Temperature

Air Temperature

Evaporator 1

Board shown top of cover RSV

Board shown bottom of base
NC COM

Evaporator
Return Air Temperature

Slave: Controller 2 – Superheat (SH)

Step 1

Step 2

Control Type

Pressure Transducer

Superheat

Temp 2

Suction Temperature

Evaporator 2

Board shown –

top of cover

RSV

Evaporator

Q.3.49 January 2023 Page 21

Board shown bottom of base
NC COM

Slave: Controller 3 – Superheat (SH)

Step 1

Step 2 Control Type

Pressure Transducer

Superheat

Temp 2

Suction Temperature

Evaporator 3

Board shown –

top of cover

RSV

Evaporator

Board shown bottom of base
54321

Put jumper wire from L1 (terminal 1) to COM (terminal 5)

NO L2 L1

LLS (Liquid Line Solenoid) or COMP CONTACTOR

120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY
Neutral (L2)

Q.3.49 January 2023 Page 22
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Control Type: Subcool

Step 1

Step 2

Control Type

Pressure Transducer Suction Temperature*

Subcool

Liquid Leaving Temp

Board shown top of cover

Warm Liquid

Subcooling Heat Exchanger

Subcooled Liquid

RSV

Board shown bottom of base

Put jumper wire from

54321

L1 (terminal 1) to

LLS

COM (terminal 5)

NO L2 L1
120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY Neutral (L2)

Shorting the suction temperature sensor input will cause the controller to go to System Off mode (SOF) and close the LLS and EEV.

Q.3.49 January 2023 Page 23
KE2 Temp+Valve Control
For Temp. Air Defrost, & Electronic Valve Control Installation Manual

Wiring Diagram

Air Temp Sensor / Leaving Liquid Temp (Subcooling Control)

Suction Sensor Suction Pressure Transducer

Observe proper orientation of Ribbon Cable.
Ribbon Cable

Red Blk Grn TEMP 1 TEMP 2 TEMP 3

PWR CB

ModBus
CN2

RS-485 RSV- Blue Org Yel Red Blk Sh B A Empty Red Grn Wht Blk

Transformer
18V

Dimensions – Inches

CN7

CN3

Top View

1.09

6.68 4.50

EEV

54 3 2 1
COM NC NO L2 L1 Relay
115/230 VAC

Put jumper wire from L1 (terminal 1) to COM (terminal 5)

LLS (Liquid Line Solenoid) or COMPRESSOR CONTACCLOTLMOSRP

Neutral (L2)

120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY

2.30 2.79
2.30 End View

0.20 Hole 2.14

Alternate Wiring Method

EEV

54 3 2 1

COM NC NO Relay

L2 L1
115/230 VAC

L1 LLS Power Supply LLS
COMP Neutral (L2)

Neutral (L2)

120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY

KE2 Therm Solutions 12 Chamber Drive . Washington, MO 63090
1.888.337.3358 . www.ke2therm.com

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PN21301 KE2 Temp Valve Control

Product Information

Product Usage Instructions

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