Heatcraft BOHN MAC7X - Programming Smart Controller; DEFTYP - ELE or AIR; REFTYP - Selection for type of refrigerant; BOXTMP - Box Temp

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Programming Beacon II Smart Controller
To make a change, press the PROGRAM REVIEW button until
the setpoint item that needs to be changed is displayed. The
SETPOINT Slide-bar is then used to change to the desired new
setting. When the new desired setting is displayed, press the
“ENTER” button. The new setting is now programmed into the
Smart Controller memory.
Press the PROGRAM REVIEW button and follow the steps
below (to back up one step during programming, while pressing
the “MONITOR” button, press the “PROGRAM REVIEW”
button):
•
DEFTYP
– ELE or AIR: Select for Electric Defrost or
Air Defrost then press “ENTER”. This selection will
automatically set the defaults for Air and Electric Defrost.
Important: This will set the refrigerant type to R404A for
Air and R404A for Electric. You must change to the
refrigerant you are using in your application if these
are incorrect.
•
REFTYP
– Selection for type of refrigerant R-22 (22), R-404A
(404), R-507 (507), R-407A (47A), R-407C (47C), R-407F
(47F), R448A (48A), R449A (49A).
•
BOXTMP
– Box Temp: -30° F to 70° F. Use “SETPOINT”
slide-bar to get desired temperature, then press “ENTER.”
•
SUPRHT
– Superheat: 4 to 20 ° F. Use “SETPOINT”
slide-bar to select desired superheat temperature, then
press “ENTER.” If multiple evaporators are connected, use
the “+” button to set other evaporators on this system.
•
SMT DFT
– Smart Defrost: On/Off. Use “SETPOINT” slide-
bar to turn it ON or OFF, then press “ENTER” - (for version
1.2. When Smart Defrost is turned on, 8 defrost periods per day
will automatically be programmed. These will be at 12:00 am,
3:00 am, 6:00 am, 9:00 am, 12:00 pm, 3:00 pm, 6:00 pm, and
9:00 pm. Also, the defrost fail safe time will be set to 60
minutes, and the defrost termination temperature will be set to
55°F. The user can change these as needed for the application).
•
DMD DFT
– Demand Defrost: On/Off use “SETPOINT” slide-
bar to turn it ON or OFF, then press “ENTER”. (The defrost
fail-safe time is defaulted to 60 minutes, and the defrost
termination temperature will be set to 55° F).
•
DEF ST
- Defrost Start time: Up to 12 settings per day (For
dF 1, use the “TIME” slide-bar to select rst defrost time, then
press “ENTER”. Use + button to scroll to next defrost period,
dF 2, use “TIME” slide-bar to select second defrost time and
press “ENTER”.
Repeat steps for each required defrost period). If defrost times
are not programmed the system will use the defaults:
Electric Defrost - four per day at 4:00 AM, 10:00 PM, 4:00 PM,
10:00 AM. Air Defrost - two per day at 9:00 AM, 9:00 PM.
•
DEFSAF
– Defrost Fail Safe Time: 10 to 200 minutes.
When this time has elapsed, the defrost cycle will end,
even if the programmed Defrost Termination temperature
was not achieved. Use “SETPOINT” slide-bar to select
desired time, then press “ENTER”.
•
DEFTMP
– Defrost Termination Temperature: 40 to 100° F.
Use “SETPOINT” slide-bar to select desired temperature, then
press “ENTER”. If multiple evaporators are connected, use
the “+” button to set other evaporators on this system.
•
ALR HI
– Alarm High Temperature. -40 to 90° F. Use
“SETPOINT” slide-bar to select desired temperature, then
press “ENTER”.
•
ALR LO
– Alarm Low Temperature -40 to 90° F. Use
“SETPOINT” slide-bar to select desired temperature, then
press “ENTER”.
•
ALRMIN
– Alarm Time, in minutes. Condition must
exceed before alarm is indicated: 2 to 120 minutes. Use
“SETPOINT” slide-bar to select desired time, then press
“ENTER”.
•
° F/ ° C
– ° F or ° C. Use “SETPOINT” slide-bar to
select then press “ENTER”.
•
12/24H
– Clock: 12H is for standard time. 24H is for
international time. Use “SETPOINT” slide-bar to select,
then press “ENTER”.
•
FNSTIR
– Evaporator fan stirring: On/Off. Use
“SETPOINT” slide-bar to turm it On or Off, then press
“ENTER”.
•
TEST
– OFF or ON: Puts all evaporators in TEST mode.
Use with Caution. This will cycle each output at 10
second intervals. Use “SETPOINT” slide-bar to select,
then press “ENTER”. Return to “OFF” and then press
“ENTER” to end the test.
•
SERVIC
– ON or OFF: When placed in the ON mode this
will pump the system down and shut it off. The system will
not restart until SERVIC is placed back in the OFF mode.
When multiple evaporators are connected as master/slave,
depressing the + or - button will display information specic
to each evaporator. Units in a master/slave connection are
numbered 1 through 4. The rst evaporator connected to the
SMART CONTROLLER MULTI-OUT Terminals is
Evaporator #1.
Programming Smart Controller
PROGRAMMING SMART CONTROLLER