Bulletin 100-50-9.1 –
Page 63
6.14 REMOTE MULTIPLE EVAPORATOR WITH 2 EEVS AND CIRCUIT EEPR – CONFIGURATION N
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 evaporators on the line-up 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 addition, only
one case in the line-up (lead case) needs an 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 but will not have an EEPR connected to them
if they share a common suction line with the lead case shown in the diagram below.
To configure the S3C control package for configuration N
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.
Liquid
Liquid Line
Solenoid
Common Suction
From CASE #n
EEPR (CDS)
CASE
EEV 1
EEV 2
FIGURE 6 – REMOTE MULTIPLE EVAPORATOR WITH 2 EEVS AND CIRCUIT EEPR – CONFIGURATION N
