Penn MR5 Series, Technical Bulletin

Page: 55 / 70

See the menu flow charts in Navigating the high-level status and setup start screens to view the
navigation path to the selection screens. The availability of the selection screens and codes depend
on your selections on the system setup screens.
Table 25: Information field selection codes, code identifications, and code descriptions
Info field
codes
Code identification and description
12H 12-hour time display format:
Select to display hours as 1 to 12 and with AM or PM time periods.
24H 24-hour time display format:
Select to display hours as 1 to 24 and without AM or PM time periods.
A99 A99 temperature sensor:
Select to set the sensor type to an A99 temperature sensor.
ADA
PTI
Adaptive defrost:
Select the defrost algorithm/mechanism.
AUT
OMA
Auto-generate:
Defrost interval start times occur at equal frequency throughout the day.
To automatically set up the frequency and real-time values for all of the selected
number of defrost cycles, select auto-generate.
AUX Auxiliary output:
Select to enable the fan/auxiliary relay as an auxiliary output.
AUX
ON
Turn on auxiliary output:
Select to set the action of a binary input to turn on the auxiliary relay.
AVG Average:
Select to set up the SN1 Sensor Failure Mode for averaging. When the system detects
an SN1 failure condition, the controller cycles the cooling system at an on/off frequency
that is equal to the average of the last four on/off cycles before the sensor failure
condition.
BAC
NET
Controller communications option:
Select a standard BACnet network as the communications option.
C Celsius (degrees):
Select the units of temperature measure.
CA
SE
Case temperature measurement:
Select to configure SN3 as an additional case temperature sensor.
CLO
SED
Closed:
Select to set the active state of a binary input.
COO
OFF
Shut off cooling:
Select to set the action of a binary input to shut off the cooling.
DEF Defrost termination temperature:
Select to configure SN3 as an additional defrost termination temperature sensor.
DMY Day, Month, and Year (date format):
The date displays as DD/MM/YYYY.
DOR
OPN
Door open:
Select an optional alarm condition mode on the ALARM setup screens and optional
binary input mode on binary input setup screens.
ELC
TRC
Electric resistive defrost:
To choose a defrost type on the system setup screens, select electric resistive defrost.
ENG Language selection option:
Select the English language for UI text.
55 MR5 Series Panel Mount Case Controller Technical Bulletin
Discontinued