DEFROST MENU
The DEFROST menu is used to configure defrost type
and scheduling for units whose defrost is controlled by
the Safe-NET display module. This menu also contains
maintenance functions for use in manually controlling
defrost for troubleshooting and repair activity.
A relay module properly connected to defrost heaters,
solenoids, etc., is required for the defrost cycle control
function.
See section on Safe-NET wiring for proper
equipment, techniques and safety considerations.
Note:
Changing these parameters as well as performing
maintenance functions requires that a valid PASSWORD be
entered first.The procedure for entering the PASSWORD is
covered in the associated section of this manual.
DTYP
The Safe-NET system is capable of controlling defrost
activity and scheduling. The Safe-NET system is capable
of controlling six types of defrost: OffC, DET, Mod,
ELE2, GAS, and ELE1.
1.
OffC
(Off-Cycle) — During off-cycle defrost,
refrigeration to the fixture is stopped by either cycling off
the compressor if so equipped, shutting off the liquid
line solenoid valve, shutting off the suction stop
solenoid, or closing the EEPR if so equipped.
Termination of the defrost cycle can be configured as
temperature, time, time/temperature or via a command
received from a master device when in a network
configuration.
2.
DET
— Defrost terminates when the digital input is
high. This requires the digital input of the Safe-NET
display module to be connected to the defrost termination
temperature activated switch. Defrost will terminate
when the coil temperature satisfies the setting of the
termination temperature activated switch.
4-30
P/N 0461391A
MENUS
DEFR
DTYP
STOP
START
FCTL
TSET
DURA
TTYP
STAR
NDEF
Value
Value
Value
Value
Value
Value
Value
Menu Structure — Defrost
Summary of Contents for ARL
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