Bulletin 100-50-9.1 –
Page 69
6.16 REMOTE MULTIPLE EVAPORATOR WITH 2 EEVS AND CASE EEPR – CONFIGURATION P
The S3C case controller is capable of controlling and monitoring single temperature, multiple 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 and one S3C valve module are required. The S3C case controller will control all case functions as well as take all the
desired sensor inputs for one evaporator and drive EEV1. The S3C valve module will take all the desired sensor inputs for the
second evaporator as well as drive both EEV2 and the EEPR. The typical control method is to regulate the average discharge
air temperature of all case evaporators with the EEPR while allowing the EEVs to control superheat. The optional liquid line
solenoid (LLS) may be installed as one-per-case or one-per-line-up. In this configuration, each case in the line-up has its own
EEPR connected to the S3C valve module. Case numbers 2, 3, 4,...n that have two evaporators will require their own S3C case
controller and valve module as well. All case functions will be synchronized across the line-up in this configuration with the
exception of temperature control.
To configure the S3C control package for configuration P
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 Expansion Valve); press
SET.
This is the
valve that is attached to the main S3C Case Controller.
EEV 1
EEV 2
Liquid
Liquid Line
Solenoid
(optional)
Common Suction
From CASE #n
CASE
EEPR (CDS)
REMOTE MULTIPLE EVAPORATOR WITH 2 EEVS AND CASE EEPR – CONFIGURATION P
