Setting up a QREV and PSHC
To set up a QREV and PSHC, navigate to the
SYSTEM SETUP
start screen and press
SET
. To move
through the QREV and PSHC screens, press
DOWN
and
UP
.
Note:
If you select
NO
on the
PSHC INSTALLED
screen, the
QREV/PSHC SUPERHEAT
and
QREV/
PSHC REFRIGERANT
screens do not appear.
Figure 12: QREV and PSHC navigation map
Table 12: QREV and PSHC screen descriptions, values, and selections
Screen name
Description
Value or
selection
QREV/PSHC
This screen is the QREV and PSHC start screen. To set up the
QREV and PSHC interface, press
SET
.
n/a
QREV/PSHC:
INSTALLED
To indicate whether a QREV or PSHC is installed and
connected to the controller or not, select
YES
or
NO
and
press
SET
.
Note:
If you select
NO
, the
QREV/PSHC: SUPERHEAT
screen and the
QREV/PSHC: REFRIGERANT
screen do not
display.
•
YES
•
NO
To set the superheat temperature value, press
SET
.
n/a
QREV/PSHC:
SUPERHEAT
Conditional
screen
Select the superheat temperature value. To save your
selection, press
SET
.
2°F to 45°F
To set the refrigerant type that the system uses, press
SET
.
n/a
QREV/PSHC:
REFRIGERANT
Conditional
screen
Select the refrigerant type from the available options and
press
SET
.
Note:
For more information about available refrigerants,
refer to the
Quick Response Expansion Valve (QREV) and
Precision Superheat Controller (PSHC) Product Bulletin
LIT-12012398
.
Refrigerant
types
31
MR5 Series Panel Mount Case Controller Technical Bulletin
Discontinued
