KE2 Temp + Valve Controller is a versatile device that offers precise temperature and valve control for various refrigeration applications. With its advanced features, it enables efficient and reliable operation of refrigeration systems. It provides accurate temperature monitoring and adjustment, allowing users to maintain desired temperatures. The controller also offers valve control, enabling users to regulate the flow of refrigerant and optimize system performance.
KE2 Temp + Valve Controller is a versatile device that offers precise temperature and valve control for various refrigeration applications. With its advanced features, it enables efficient and reliable operation of refrigeration systems. It provides accurate temperature monitoring and adjustment, allowing users to maintain desired temperatures. The controller also offers valve control, enabling users to regulate the flow of refrigerant and optimize system performance.
KE2 Temp+Valve Control
For Temp. Air Defrost, and Electronic Valve Control
Condensed Quick Start Guide
KIT PN 21301
Q.3.66 June 2021
thermsolutions
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
This reference should remain on site with the
installed KE2 Temp + Valve controller.
Remote
monitoring, control
& text or e-mail
alarm notices
when used with the
KE2-EM
Ribbon
Cable
Air Temp Sensor /
Leaving Liquid Temp (Subcooling Control)
120 (208 - 240)/1/60
CONTROLLER
POWER SUPPLY
Neutral (L2)
LLS
COMP
115/230
VAC
NOCOM NC
Relay
Red Blk Grn
TEMP 3
TEMP 1 TEMP 2
PWR CB
CN7 CN3
CN2 RS-485
Sh B A
RSV- Blue Org Yel Red Blk
Empty Red Grn Wht Blk
Transformer
18V
ModBus
Suction Sensor
Suction Pressure Transducer
EEV
4 3 2 15
L1L2
Put jumper wire
from L1 (terminal 1)
to COM (terminal 5)
Observe proper orientation
of Ribbon Cable.
LLS (Liquid Line Solenoid) or
COMPRESSOR CONTACTOR Line (L1)
Ribbon Cable
Air Temp Sensor
120 (208 - 240)/1/60
CONTROLLER POWER
SUPPLY
L1
LLS
COMP
115/230
VAC
Red Grn Blk
TEMP 3
TEMP 1 TEMP 2
PWR CB
CN7 CN3
CN2 RS-485
Sh B A
RSV- Blue Org Yel Red Blk
Empty Red Grn Wht Blk
Neutral (L2)
Transformer
18V
ModBus
Suction Sensor
Pressure Transducer
EEV
+
_
120 (208 - 240)/1/60
CONTROLLER
POWER SUPPLY
Neutral (L2)
LLS
COMP
115/230
VAC
NOCOM NC
Relay
4 3 2 15
L1L2
LLS (Liquid Line Solenoid) or
COMPRESSOR CONTACTOR
POWER SUPPLY
LLS (Liquid Line Solenoid) or
COMPRESSOR CONTACTOR
(1) KE2 Temp + Valve controller
(pn21393 - controller only)
(1)10’ pressure transducer
(1) temperature sensor - 45”
(1) temperature sensor - 10’
(4) self-tapping mounting screws
(1) sensor ziptie
(1) screwdriver
(2) screws for high voltage shield
B
C
D
E
F
A
H
G
Alternate Wiring Method
A
C
D
E
B
F
G
H
Wiring Diagram
What’s in the KE2 Temp + Valve kit, pn 21301: Complete Instructions
Please visit:
http://ke2therm.com/product/
ke2-temp-valve-control/
scroll down the page and click
Link to Literature
use this QR code.
KE2 Temp + Valve Literature
— OR —
KE2 Temp + Valve Videos
❺ ❹ ❸ ❷ ❶❺ ❹ ❸ ❷ ❶
Supplies List
Truck stock items are required to install the controller:
conduit between the controller & evaporator
(2) conduit connectors (straight or elbow as required)
(4) high voltage wires (matched to LLS/compressor
contactor & the controller load)
wire labeling (numbers, colors, etc.)
additional wire ties
18 gauge twisted shielded pair
(if extending sensor wires)
Cat5e (if adding communication)
foam insulation (if running wires outside the space)
silicone (for sealing any box penetrations)
KE2 Therm Solutions
12 Chamber Drive . Washington, MO 63090
1.888.337.3358 . www.ke2therm.com
© Copyright 2021 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.3.66 June 2021 supersedes all prior publications.
Q.3.66 June 2021
Page 2
KE2 Temp + Valve Control (pn 21301)
For Temp, Air Defrost, and Electronic Valve Control
Condensed Quick Start
Use and to change the setpoint
Access Setpoint mode by pressing and holding until
CtL (control type) displays on the screen.
Use and to advance through available setpoints.
Press to view the current setting.
Press to move between digits to accelerate the changes.
Press and hold to conrm each setpoint change
Press to escape.
ENTER
ENTER
ENTER
BACK
ENTER
Red light - Critical alarm (system is NOT running).
Yellow light - Non-critical alarm (system running).
Green light - Liquid Line Solenoid (LLS) relay energized.
Green blinking - Waiting on min. run or min. o timer to energize/de-energize LLS relay.
Indicator lights
Subcool ControlHGB & EEPR Control
EEV Control EEV Control Only
No Thermostat
CtL
(control type)
SHt SH EPR or HGB
ADVANCED MENUS BASIC MENUS
Press & hold
3 seconds
rtP①/LLt②
SYS
SH③
PrS④⑤
SUt③
SAt④
inL⑥
OPn
COr
ALs
Non Adustable (view only)
VARIABLES
MENU
Edt
Only visible if CUS
(custom) is selected
Sr
SFS
Ub
inP
PSP or tPr
ts/PSP
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
HAO
LAO
tAd
Adr
Unt
PrO
int
dEr
CLA⑦
FAC⑦
SOF⑦⑧
POS⑨
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
CLA⑦
FAC⑦
SOF⑦⑧
POS⑨
rEL
Manual
Menu
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
d2
d3
d4
d5
d6
d7
d8
d9
d10
d11
d12
dFt
HAO
LAO
tAd
Adr
Unt
PrO
int
dEr
CLA⑦
FAC⑦
SOF⑦⑧
POS⑨
rEL
Manual
Menu
CtL
(control type)
① Not shown if in EEPR, EHGBP, SH, or SUb control, and
input is pressure.
② Only shown if SUb control is selected.
③Only shown if SH, SHt, or SUb control is selected.
④ Only if SH, SHt, or SUb and Pt control is selected .
⑤Only shown if input is pressure for EEPR or EHGBP
⑥ Only shown if in SH, SHt, or SUB control and tt selected.
⑦ Press & hold ENTER for 3 seconds to activate.
⑧Press BACK button to return to normal operation.
⑨ Press ENTER to enter manual valve control,
& to adjust, and press BACK to exit.
Footnotes
SUb
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
dEr
CLA⑦
FAC⑦
SOF⑦⑧
POS⑨
rEL
Manual
Menu
All Basic Menu setpoints are
available in the Advanced
Menu. See Advanced Menu.
Press & hold
3 seconds
For a complete list of
setpoints and descriptions
see Q.3.49.
Basic Menu: “Out of Box” or if Superheat (SHt)
Setpoint Description Range Default
CtL Control Type - EEV+Temp, EEV
Only, EEPR, EHGBP, Subcool
SHt, SH, EPr, HGb, SUb
SHt
Edt
(Expansion device type)
Valve Type: Mechanical (tHr), KE2-
HSV (HS), KE2-RSV (rS), SEI, SER,
Carel (CrL), Custom (CUS)
tHr, HS, rS, SEi ,SEr CrL, CUS* rS
Only if CUS
is used for Edt
(valve type)
Sr Step Rate 30 - 400 30
SFS Steps Full Stroke 200- 6400 500
Ub Motor Type Uni-(unipolar), bi (bipolar) Unipolar
Only if inP (input) is
Pt under Advanced
Menu
rFg Refrigerant Type See Refrigerant List below 404
SSP Superheat Setpoint** 5ºF (2.8K) to 50ºF (28K) 8°F (4.4K)
tS Temperature Setpoint -50°F (-45°C) to 100°F (38°C) 35°F (9.7°C)
AdF Air Temperature Dierential 1°F (0.5K) to 30°F (17K) 2°F (1.1K)
CSH Compressor Starts/Hour Maximum 5 (O)*** to 10 6
dPd Defrost Per Day 0 to 12, CUS* 4
Only if dPd (Defrosts
per Day) is CUS
tOd Time of Day 00:00 to 23:59 12:00
d1 to d12 Start time of Defrost #1 - #12 00 - 23 diS (disabled)
dFt Defrost Time 6 min to 720 min 45 min
* Selecting CUS (custom) unlocks additional Setpoints.
** Min. superheat in Subcool control.
*** Selecting fewer than 5 compressor starts per hour results in the starts per hour feature being turned o. The compressor
will then function on temperature only.
Controller Navigation
The display will show room temp (rtp), superheat (SH), sution pressure (PrS) or
leaving liquid temp (LLT) depending on control type and setup.
Service Call Saver- Post Defrost Indicator
The display will switch between room temp and dEF after a defrost. The controller
will refrigerate as normal, and dEF will clear automatically.
Alarm List
Alarms Description
CRITICAL
System is
o - Red LED
iSA iSA Inlet Sensor Alarm
PSA PSA Pressure Sensor Alarm
SSA SSA Suction Temperature Sensor
Alarm
NON -CRITICAL
System is still running, and trying to main-
tain cooling - Amber LED
ASA ASA Room (Air )Sensor Alarm
HPA HPA High Pressure Alarm
HSH HSH High Superheat Alarm
HtA HtA High Temperature Alarm
LPA LPA Low Pressure Alarm
LSA LSA Leaving Liq. Temperature Sensor
Alarm
LSH LSH Low Superheat Alarm
LtA LtA Low Temperature Alarm
Pdt Pdt Pump Down Timeout Alarm
PF Pf Power Failure
SCC sCC Short Cycle Compressor Alarm
Accessing the Menus
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
Refrigerant Abbreviation
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
-
1
-
2
KE2 Temp + Valve Controller is a versatile device that offers precise temperature and valve control for various refrigeration applications. With its advanced features, it enables efficient and reliable operation of refrigeration systems. It provides accurate temperature monitoring and adjustment, allowing users to maintain desired temperatures. The controller also offers valve control, enabling users to regulate the flow of refrigerant and optimize system performance.
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