KE2 EvapOEM User Manual

KE2 EvapOEM
Quick Start Guide
PN 21231 (21214v3.0)
Q.1.45 October 2022
thermsolutions
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
This reference should remain on site with
the installed KE2 Evap OEM controller.
Overview
The KE2 Evap OEM provides the energy savings, precise temperature control,
frost reduction, and communications capability of the KE2 Evaporator Eciency
in a compact and economical package. It replaces and performs the function
of multiple mechanical components such as the thermostat, defrost time clock,
defrost termination, and fan delay. The KE2 Evap OEM controls the liquid line
solenoid (LLS), evaporator fans, and defrost heaters (if present). It is able to
control an electronic expansion valve (EEV) to regulate superheat, but will also
function with a mechanical thermostatic expansion valve.
Defrosts are initiated by a proprietary calculation of actual evaporator
eciency. When evaporator eciency has dropped to 90%, the controller will
initiate a defrost. Defrost is terminated based on one or more coil temperature
sensors. To maximize eciency, fans may run for several minutes at the start of
a defrost before turning o and energizing heaters.
Fans are also managed in a unique way. If wired to control fans with fan
management enabled, during the o cycle the controller will intelligently cycle
fans based on room and coil temperature for precise room temperature control.
Fans should always be running when the controller is calling for refrigeration.
Communications capability on the KE2 Evap OEM was designed with the
service technician in mind. The controller has built-in webpages that show
system performance in real time, allow setpoint changes, provide a 30 day
room/coil temperature graph, and a 30 day datalog of all variables. The
webpages can be accessed by smartphone or tablet through a KE2 Therm Wi-
Fi accessory, a local network, or by plugging directly into the controller with a
Cat5e cable and laptop. If the controller is provided wired internet access, it can
be accessed remotely via KE2 SmartAccess.
NO NC
COM
EARTH
ON
Panic
Alarm
Light
Control
Temp
Alarm
Door Heater
Control
Remote
Display
+
Liquid Line Sol./
Comp. Contactor
Defrost Heater
Management
Precise Room
Temperature
TEV/EEV
Multiple
Alarms
Evap. Fan
Management
Remote Access
& Control
Data
Logging
KE2 Combo Display
KE2 Evap OEM
+
Humidity Control
& Monitoring
Heat / Reheat
Timer
Output
Humidier /
Dehumidier
Superheat Control
Based on Humidity
KE2 Humidity Control
SHSHSH
Contents
Point to Point Wiring Diagram
Controller with KE2 Terminal Board Page 2
General Wiring Diagram
Controller without KE2 Terminal Board Page 3
Coil Sensor Location Page 4
Navigation / User Interface / Setup Page 5
Key Presses / Bonding / Pairing Page 6
Menus and Parameters
Basic Setpoints Menu Page 7
Advanced Setpoints Menu Page 7-9
Alarm Status Menu Page 10
Variables Menu Page 11
Types of Control - First Time Setup Menu Page 12
System Modes Page 12
Auxiliary Input Modes Page 12
Valve Types Page 12
Refrigerants Page 12
Alphabetical List of Abbreviations Page 13-17
KE2 SmartAccess Page 18
Dimensions Page 19
Accessories Page 20
Specications Page 21
Get your controller
online, & benet from remote
monitoring, control, and text /
e-mail alarm notices.
Just a few easy steps, with
KE2 SmartAccess
FIRST YEAR FREE
NO COM MIT MEN T R EQU I RED
This Quickstart guide provides an overview of the controller, general wiring,
basic display operation, and setpoints. Please follow the link below for the
latest version of this document, alarm troubleshooting guide, and webpage
explanations for further information.
KE2 Evap OEM Literature
https://ke2therm.com/literature/literature-ke2-evap-oem/
KE2 Combo Display
KE2 Evap OEM controllers may be installed with the KE2 Combo Display. The KE2
Combo Display provides a remote display for the KE2 Evap OEM and a number
of extra features. Please follow the link below for further information on the KE2
Combo Display.
KE2 Combo Display Literature
https://ke2therm.com/literature/literature-ke2-combo-display/
KE2 Humidity Control
KE2 Evap OEM controllers with rmware v3.0 or above may add the KE2
Humidity Control to new or existing installs. This adds humidity monitoring
& control, including outputs for humidication, dehumidication, heat, and a
unique superheat control designed to maximize or minimize dehumidication.

KE2 EvapOEM Specifications

General

Brand	KE2
Model	EvapOEM
Category	Security System
Language	English