A52x Series Electronic Refrigeration Controller with Adaptive Defrost Technical Bulletin
38
QREV/PSHC Setup Screens
To scroll through the system setup start screens, tap the
DOWN
or
UP
keys. To go to the
INSTALLED
screen, press
SET.
No selection
Select
YES
or
NO
to indicate whether or not a QREV/PSHC is
installed. To save the selection, press
SET.
Note:
If you select
NO,
the
REFRIGERANT TYPE
screen and
SUPERHEAT SETPOINT
screen do not display.
YES
or
NO
NO
To go to the
QREV
/
PSHC
SUPERHEAT
screen, press
SET
. No
selection
Select the Superheat temperature value, and press
SET
. The
Superheat temperature range is 2F° to 45F°.
2F° to 45F°
To go to the
QREV/PSHC
REFRIGERANT
TYPE
screen, press
SET
.
No selection
Select the
refrigerant type used by the system and press
SET
.
Refer to the product bulletin
Quick Response Expansion Valve
(QREV) and Precision Superheat Controller (PSHC) LIT-
12012398
for available programmed refrigerants.
To set the system name, select the preferred characters and
numbers and press
SET.
A-Z
To go to the
UNITS
screen, press SET.
No selection
To set the units of temperature measurement, select
F
(Fahrenheit) or
C
(Celsius), and press
SET
.
F
(Fahrenheit)
or
C
(Celsius)
F
Table 8: A52x Controller Set Up Screens, Descriptions, Behaviors, Value Ranges a Selection Lists (Part 7
of 19)
Screen Name in
Message Field
Parameter Description, Behavior, User Action
Value Range or
Selection List
Default
Value or
Selection
QREV/PSHC
SET
QREV/PSHC
INSTALLED
NO
QREV/PSHC:
SUPERHEAT
SET
QREV/PSHC:
SUPERHEAT
45
2
6°
QREV/PSHC
REFRIGERANT
SET
QREV/PSHC
REFRIGERANT
TYPE
513
A
SYSTEM NAME
SET
UNITS
SET
UNITS
F
