Bulletin 100-50-9.1 – Page 45
6.8 REMOTE SINGLE EVAPORATOR WITH CASE EEPR – CONFIGURATION H
The S3C case controller is capable of controlling and monitoring single temperature, single evaporator refrigerated fixtures
installed as a line-up. The case shown in the diagram below is the lead case of the line-up. In this scenario, one S3C case
controller is required. The S3C case controller will control all case functions as well as take all the desired sensor inputs and
drive the EEPR. The typical control method is to regulate the discharge air temperature of the evaporator with the EEPR while
allowing the TEV to control superheat. That the required liquid line solenoid (LLS) may be installed as one-per-case or one-
per-line-up. Case numbers 2, 3, 4,…n will require their own S3C case controller as well.
To configure the S3C control package for configuration H
shown above, follow these directions:
If the controller has not been factory set, then upon initial
start-up, the controller will be in set-up mode and the screen
will display (for self-contained case).
1. Press the SET button, then use ▲▼ buttons to scroll
to o; press SET. This will configure the controller to
support a remote case.
2. Press the SET button when
(Rack Identifier)
is displayed. Use the
▲▼
buttons to configure the 4
character Rack Identifier. Note: Push
▲
button for
numeric,
▼
for alpha characters. When satisfied
with each digit, press the SET button to go to the next
digit. Pressing SET multiple times will move to the next
parameter.
3. Press the SET button when ud (Line-up Identifier)
is displayed. Use the
▲▼
buttons to configure the 4
character Line-up Identifier. Note: Push
▲
button for
numeric,
▼
for alpha characters. When satisfied
with each digit, press the SET button to go to the next
digit. Pressing SET multiple times will move to the next
parameter.
4. Press the SET button when d (Case Identifier)
is displayed. Use the ▲▼ buttons to configure the 4
character Case Identifier. Note: Push
▲
button for
numeric,
▼
for alpha characters. When satisfied
with each digit, press the SET button to go to the next
digit. Pressing SET multiple times will move to the next
parameter.
5. Press the SET button when (Application Type) is
displayed. Use the ▲ button and scroll to (Single
Temperature Case); press SET.
6. Press the SET button when (Local Stepper Valve
Configuration) is displayed. Use the ▲ button to scroll
to (Electronic Evaporator Pressure Regulator);
press SET. This is the valve that is attached to the main
S3C Case Controller.
7. Press the SET button when (Expansion Valve
Type) is displayed. Use the ▲ button to scroll to e
(Thermostatic Expansion Valve); press SET.
8. Press the SET button when (Building Automation
System Expected) is displayed. Use the ▲▼ buttons to
choose e or o; press SET.
a. If e is chosen, the display will show (Building
Automation System Protocol). Press the SET button
then use ▲▼ buttons to choose the B.A.S. Protocol
based on the below chart; press SET.
EEPR (CDS)
Common Suction
CASE
From CASE #n
Liquid
Liquid Line
Solenoid
REMOTE SINGLE EVAPORATOR WITH CASE EEPR – CONFIGURATION H
Display Meaning
485
Modbus Protocol over RS-485
6485
Bacnet Protocol over RS-485
Bacnet Protocol over IP (Ethernet)
o
Modbus Protocol over IP (Ethernet)
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