Heatcraft Refrigeration Products 25001401, Инструкция по установке и эксплуатации

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Defrost Delay Start Time
Example: The system is first powered up at 8:00 AM and is
programmed for 4 defrost per day. The user would like the first
defrost at 10:00 AM. To accomplish this, use the
“PROGRAM
REVIEW” button to scroll to
dFS
. Use the “SELECTOR” switch to
select 2 hours delay start, then press “ENTER.” The 1
st
defrost will
now occur at 10:00 AM and then a defrost will occur every 6 hours
thereafter.
Time Remaining Until Next Defrost
To find out how much time is left until the next defrost is scheduled,
use the
“MONITOR” button to scroll to
dFS
. The time displayed will
be how much time until the next scheduled defrost.
Defrost Schedule In Memory
Beacon II does not have a real time clock but it keeps track of the
time that has elapsed in its memory. It also keeps in memory the
number of defrosts scheduled and how much time has elapsed
between defrosts. If a power failure occurs, when power is restored,
Beacon II remembers how many defrosts are scheduled and it
remembers how much time was left until the next defrost. It will
then defrost based on this timing. So, if the power failure lasted 15
minutes, the defrost schedule will be off by 15 minutes.
Resetting Defrost Schedule
When a power interruption causes a severe lag in the defrost
schedule, the defrost schedule can be reset in the following manner.
First, press the reset time button on the board to zero out the internal
counters. Then, program the appropriate defrost delay start time for
the next desired defrost period. The defrost schedule will be correct
until you have another power outage.
Service Defrost
Service Mode
A single pole, single throw switch (SPST) is supplied in each
condensing unit for shutting off the system. Closing the "
SERVICE "
switch in the condensing unit will cause the system to pumpdown
and shut off. "
SEr " will be displayed on the Beacon board LED and
" SERVICE " is displayed on the Smart Controller LCD display. The
evaporator fan and heaters will be de-energized in the Service Mode.
The system will not restart until the SPST switch is placed in
the “NORMAL” or “OFF” position.
OR
A remote " SERVICE " switch can be added to the Beacon II board
across the " Ser " and " C " connections of the terminal block. It will
operate in the same manner as the switch above.
OR
The system can be pumped down by pressing the " SERVICE " button
twice. To restart the system, press the " CLEAR " button.
OR
The system can be pumpdown for service by closing the liquid line
service valve in the condensing unit, then closing the suction line
service valve when the system trips on the low pressure switch.
In order for air defrost evaporator fan motors to cycle off during
"
SERVICE " mode, the fan motors must be wired through the fan
relay on the Beacon II board.
Defrost
Defrost Timing
When power is first applied to the system, its timer starts counting
time. If 4 defrost are programmed, it will initiate a defrost every 6
hours from when power was first applied. Beacon II does not have
a real time clock. Beacon II does provide the ability to delay the
starting of the first defrost.