KE2 21301 Temp+Valve Control Installation Guide
- June 6, 2024
- KE2
Table of Contents
21301 Temp+Valve Control
This reference should remain on site with the installed KE2 Temp + Valve controller.
thermsolutions
KE2 Temp+Valve Control
For Temp. Air Defrost, and Electronic Valve Control Installation Manual
KIT PN 21301
Remote monitoring, control & text or e-mail alarm notices
when used with the
KE2-EM
Q.3.49 August 2021
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)
A
B (1)10′ pressure transducer
C (1) temperature sensor – 45″
D (1) temperature sensor – 10′
B
E (4) self-tapping mounting screws
F (1) sensor zip tie
G (1) screwdriver
H (2) screws for high voltage shield
C
D
Supplies List
Standard truck stock items are required to install the controller. A list is
provided below conduit to go between the controller & evaporator (2) conduit
connectors (straight or elbow as required)
(4) high voltage wires matched to the load of the liquid line
solenoid/compressor and the controller.
wire labeling (numbers, colors, etc.)
additional wire ties
18 gauge twisted shielded pair (if extending sensor wires/adding
communication)
foam insulation (if running wires outside the space)
silicone (for sealing any box penetrations)
E
F
H
G
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 Side-by-side
Locations
Evaporator cabinet Outside controlled space Evaporator cabinet Adjacent to
entrance 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
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 2
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Wiring the Controller The Temp + Valve was designed with functionality in
mind. The con- A
troller accepts 120V / 208-240V to power the controller through the lower
conduit connection. The temperature sensor, pressure transducer, 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 B
cover may be gently moved to the side.
C
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- D
nectors can be seen. The Red 2-position connector is the controller’s
power supply.
E
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 variety of input voltages and is not required to match the controller’s input.
F
See table for relay ratings. The relay uses the 3-position screw termi-
nal 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 remain-
ing lead from the solenoid should be connected to the NO (normally open)
terminal, the center terminal location.
Relay Rating
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.
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
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Low Voltage Connections H Air Temperature Sensor – The air temperature sensor
terminal is
located 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.
J 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 August 2021 Page 3
I
H
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 4
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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)
KE2-EM
WAN LAN
KE2 Wireless Sensors
Wireless Sensor
Wireless Sensor
Wireless Sensor
AB
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
EARTH EARTH
COM NO NC
Power
Low Temp Defrost
– 3. 1
thermsolutions
Temp Air Defrost
thermsolutions
Temp Air Defrost
Hold for manual 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
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.
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
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Q.3.49 August 2021 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
SH
EPR or HGB
SUb
SHt
SH
EPR or HGB
Manual Menu
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
tS
AdF
CSH
dPd
Only visible if CUS
(custom) is selected
for dPd (Defrost per
day) tOd d1
Manual Menu
d2
d3
d4
d5
d6
d7
d8
d9
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
Sr
SFS
Ub
inP
PSP or tPr
ts
CSH
dPd
Only visible if CUS
(custom) is selected for dPd (Defrost per
day)
tOd
d1
d2
d3
d4
d5
d6 d7 d8
Manual Menu
d9
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
rFG
SSP
Only visible if input
is Pt (pres/temp)
tOP
tS
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. © Copyright 202P1reKsEs2ETNhTeErRmtoSoelnuteiornms,aIncu.a,
lWvaaslvheincgotonntr,oMl,issouri 63090
& to adjust, and press BACK to exit.
Q.3.49 August 2021 Page 6
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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
Variables Menu
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.
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
Refrigerant List
CRITICAL System is off.
NON -CRITICAL System is still running, and trying to maintain cooling
Alarms
Description
LED
iSA iSA Inlet Sensor Alarm: Valve closes and turns system off.
Red
PSA PSA Pressure Sensor Alarm: Valve closes and turns system off.
Red
SSA SSA Suction Temperature Sensor Alarm: Valve closes and turns system off.
Red
ASA ASA HPA HPA HSH HSH
HtA HtA
LPA LPA LSH LSH LSA LSA LtA LtA Pdt Pdt PF Pf SCC sCC
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.
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
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
refrigeation 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 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.
Amber Amber Amber
Amber
Amber Amber Amber Amber Amber Amber Amber
Refrigerant
R-22 R-134a R-404A R-407A R-407C R410A R-717 R-422A R-422D R-507 R-448A R-449A
R-450A R-438A R-408A R-409A R407F R-744 R-513A R-458A
Abbreviation
R22 134 404 40A 40C 410 717 42A 42d 507 448 449 450 438 408 409 407 744 513
458
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Q.3.49 August 2021 Page 7
Basic Menu: “Out of Box” or if Superheat (SHt)
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
inP(input) is Pt Pt under Advanced
rFg rF
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
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
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 – 400 200- 6400 Uni-(unipolar), bi (bipolar) Uni bi
Default
SHt
rS
30 500 Unipolar
Refrigerant Type
See Refrigerant List on Page 6
404
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
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
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
*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.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 8
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Advanced Menu: “Out of Box” or if Superheat (SHt)
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
rFGrF
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
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 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
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 – 400 200- 6400 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
30 500 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
*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.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Q.3.49 August 2021 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), KE2RSV (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 – 400 200- 6400 Uni-(unipolar), bi (bipolar) Uni bi
See Refrigerant List on Page 6
5.0ºF (2.8K) to 50.0ºF (28K)
Default
SH
rS
30 500 Unipolar 404 8°.0F (4.4K)
*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.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 10
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 – 400 200- 6400 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
30 500 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.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Q.3.49 August 2021 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 Regultating 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 – 400 200- 6400
(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
Menu
Only if inP inP (input) is tPr tPr
tS TS
CSH CsH
Temperature Setpoint Compressor Starts/Hour Maximum
-50.0°F (-45°C) to 100°F (38°C) 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
30 500 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.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 12
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 Regultating 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 – 400 200- 6400
(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
Menu
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
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%
Default
HGb / EPr
Sd4
Cd9
30 500 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
*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.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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
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 – 400 200- 6400 Uni-(unipolar), bi (bipolar) Uni bi
Pt, tt Pt tt
See Refrigerant List on Page 6
5ºF (2.8K) to 50ºF (28K) -50°F (-45°C) to 100°F (38°C)
** Selecting CUS (custom) unlocks additional Setpoints.
Q.3.49 August 2021 Page 13
Default
SUb
rS 30 500 Unipolar Pt 404 8.0°F (4.4K) 35.0°F (4.4K)
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 14
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 – 400 200- 6400 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%
Default
SUb
rS
30 500 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
** Selecting CUS (custom) unlocks additional Setpoints.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Q.3.49 August 2021 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)
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 16
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 rS rS rtP rtP
Refrigerant KE2-RSV Room Temp
Setpoint Setpoint Variable
Type of refrigerant used in the system Electronic Expansion Valve Option under EDt (Expansion Device Type) 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)
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Installation Manual
Q.3.49 August 2021 Page 17
Custom Defrost Setup The following steps will guide you through the setup of
the KE2 Temp’s custom defrost feature.
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
STEP 3 Press the up arrow until CUS is displayed.
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,
35 1
tod
then press
Use the up arrow and down arrow to set the time.
STEP 1
Press and hold the
button, tS
is displayed on the LEDs
tS
STEP 2 Press the up arrow until dPd is displayed,
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
dpd
then press displayed.
, 6 (default) will be
4:32 pm would be 16.3 on the controller’s display.
163
tod
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
STEP 6 Repeat steps as necessary for d2 to d12.
dd2 d 12
t6
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).
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 18
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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
RSV
Evaporator
Return Air 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
LLS / COMP CONTACTOR
L1 Neutral (L2)
120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY
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 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 Short = Off
External 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 August 2021 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.
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 20
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 Short = Off
External 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+
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 August 2021 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)
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.49 August 2021 Page 22
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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 COM (terminal 5)
LLS
NO L2 L1
120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY Neutral (L2)
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and 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
Dimensions – Inches
CN7
CN3
Q.3.49 August 2021 Page 23
Transformer
18V
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)
L1
Neutral (L2)
120 (208 – 240)/1/60 CONTROLLER POWER SUPPLY
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Temp + Valve Control (pn 21301)
For Medium Temperature Applications with Air Defrost
Condensed Quick Start
Q.3.66 August 2021 Page 24
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090 Q.3.49 August 2021 supersedes all prior publications.
KE2 Therm Solutions 12 Chamber Drive . Washington, MO 63090
1.888.337.3358 . www.ke2therm.com