KE2 Therm Solutions Case Control Installation Instructions Manual

KE2 Case Control Installation Instructions
N.1.5
September 2024

1. Introduction

The KE2 Case Control is designed for optimal control of reach-ins, coffin cases, merchandisers, open-air showcases,
and display cases. The controller, with the addition of auxiliary KE2 Valve Drivers, can simultaneously drive one Electric
Evaporator Pressure Regulator (EEPR) or Electric Hot Gas Bypass Valve (EHGBP), and up to a total of three Electric
Expansion Valves (EEVs) or Pulse Width Modulation (PWM) valves. The electric valve control has been optimized
based on decades of industry experience. A unique hybrid control for EEPRs is available on the controller, which
provides superior temperature stability compared with other control methods. In addition to hybrid control, when an
EEPR or EHGBP is selected the controller can be set to control to the target discharge air temperature, the target
return air temperature, or target suction pressure.
The KE2 Case Control's defrosts are initiated based
on a unique calculation of actual evaporator efficiency,
which minimizes temperature fluctuations, eliminates
excess frost on the products, preserves product
quality, extends shelf life, and saves energy. The defrost
algorithm has been proven in the industry over nearly
a decade and across thousands upon thousands of
installations. When the efficiency of the evaporator
drops to 90% due to frost accumulation, the controller
will initiate a defrost, reducing the total number of
defrosts by up to 90% compared with scheduled
defrosts.
Communications is another major feature of the KE2 Case Control. The controller's embedded webpages allow
users to access the controller directly to monitor real-time values, view past data, and adjust setpoints. Wi-Fi is
available for the service technician at the controller, allowing direct access to the KE2 Case Control's webpages from
a smartphone, tablet, or PC. Remote access is also extremely simple to setup. KE2 SmartAccess technology on
the controller allows remote access to the KE2 Case Control through a portal site. Simply enable KE2 SmartAccess
on a controller, provide it with internet access, and add it to your KE2 SmartAccess account. These features make
both monitoring and servicing the unit more efficient.
The KE2 Case Control has an API built-in to allow integration with larger building management systems, providing
a multitude of ways to communicate with the controller. BACnet/IP is also available with the addition of a KE2-Edge
Manager to act as an interface.
PN 21739 v2.06 © Copyright 2024 KE2 Therm Solutions, Inc., Washington, Missouri 63090