16
PROGRAM
12
Programming & Reviewing
Programming And Reviewing Settings/Changes (cont’d.)
Use the “PROGRAM REVIEW” button to select these items:
• Defrost Type – “A-E” - Selection is made for air
defrost or electric defrost coil. This will automatically set
the system factory defaults for air defrost and electric
defrost. (See default settings.)
• Refrigerant Type - “rEF” - 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).
• Box Temperature - “bot” - Select box temperature
setpoint. Selection range is -30°F to +70° F. Defaults:
Electric defrost -10°F and air defrost +35°F.
• Superheat - “SUP” - Evaporator superheat is controlled by
the board on each evaporator. Each board measures the
evaporator saturation suction temperature and the suction
pressure to determine the superheat. The superheat value
at the evaporator can be changed to ensure a 20°F to 30°F
superheat at the Compressor.
Default: 7°F.
• Evaporator Board: Slave? - “SLA”
systems, each evaporator board has to be programmed
to be a Master or a Slave. Each board is shipped from our
factory set as a Master. You must make this change to
each Slave evaporator. A selection of “YES” is made for this
setting.
The default for each board is a Master, so on Single
Evaporator systems no change is required.
• Demand Defrost Enable – “ddF” – Demand defrost is
available for electric defrost systems only. Selection is
made to enable demand defrost by a selection of “Yes” or
to not enable demand defrost by a selection of “No”. If this
parameter is enabled then parameters dFn and dFS
will no
longer be displayed in the menu as they are no longer used.
Default: electric defrost: No
• Number. of Defrost per Day - “dFn” - A selection must
be made for the number of defrosts cycles per day –
1,2,3,4,5,6,8,10 or 12 per day. If no selection is made,
defaults: electric defrost 4 per day and air defrost 2 per day.
• Defrost fail-safe - “dFF” - This is the maximum time allowed
for a coil to remain in defrost. Defrost will be terminated if the
defrost end temperature is not attained when this time has
expired. On multiple evaporator systems, this is controlled by
the Master unit. Each board should have the same setting.
Defaults: electric defrost 30 minutes and air defrost 40 minutes.
• Defrost End Temperature - “dFt” - This is the temperature
at which the defrost will be terminated. Defaults: electric
defrost +60°F and air Defrost +45°F.
• Defrost Delay Start Time - “dFS” - This allows the delay of
the start of the first defrost. Default: 0.0 hours.
• Alarm High Temperature - “ALH” - Temperature at which a
high box temperature alarm will be triggered. This does not
apply during defrost. Defaults: electric defrost +5°F and air
defrost +50°F.
• Alarm Low Temperature - “ALL” - Temperature
at which a Low Box Temperature alarm will be
triggered. Defaults: Electric Defrost -15°F and Air
Defrost +30°F.
• Alarm Time - “ALt” - Time which High Temperature or
Low Temperature condition must exceed before alarm is
triggered. Default: 60 minutes.
• °F/°C - “F-C” - Select units to display temperature.
Fahrenheit or Celsius. Default: Fahrenheit. When °C is
selected, a red dot will appear in the right bottom corner of
the LED display of the Heatcraft Quick Response Controller
board.
• Off cycle fan stir cycle enable – “FnS” – This allows
evaporator fan stir cycling in the off cycle utilizing a
fixed stir cycle timing of 7 minutes on and 5 minutes off.
Selection is made to enable off cycle stir cycling by a
selection of “ON” or to not enable off cycle stir cycling by
a selection of “Off”. Defaults: electric defrost off and air
defrost off
12
Programming & Reviewing
Programming And Reviewing Settings/Changes (cont’d.)
Use the “PROGRAM REVIEW” button to select these items:
• Defrost Type – “A-E” - Selection is made for air
defrost or electric defrost coil. This will automatically set
the system factory defaults for air defrost and electric
defrost. (See default settings.)
• Refrigerant Type - “rEF” - 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).
• Box Temperature - “bot” - Select box temperature
setpoint. Selection range is -30°F to +70° F. Defaults:
Electric defrost -10°F and air defrost +35°F.
• Superheat - “SUP” - Evaporator superheat is controlled by
the board on each evaporator. Each board measures the
evaporator saturation suction temperature and the suction
pressure to determine the superheat. The superheat value
at the evaporator can be changed to ensure a 20°F to 30°F
superheat at the Compressor.
Default: 7°F.
• Evaporator Board: Slave? - “SLA” - On multiple evaporator
systems, each evaporator board has to be programmed
to be a Master or a Slave. Each board is shipped from our
factory set as a Master. You must make this change to
each Slave evaporator. A selection of “YES” is made for this
setting.
The default for each board is a Master, so on Single
Evaporator systems no change is required.
• Demand Defrost Enable – “ddF” – Demand defrost is
available for electric defrost systems only. Selection is
made to enable demand defrost by a selection of “Yes” or
to not enable demand defrost by a selection of “No”. If this
parameter is enabled then parameters dFn and dFS will no
longer be displayed in the menu as they are no longer used.
Default: electric defrost: No
• Number. of Defrost per Day - “dFn” - A selection must
be made for the number of defrosts cycles per day –
1,2,3,4,5,6,8,10 or 12 per day. If no selection is made,
defaults: electric defrost 4 per day and air defrost 2 per day.
• Defrost fail-safe - “dFF” - This is the maximum time allowed
for a coil to remain in defrost. Defrost will be terminated if the
defrost end temperature is not attained when this time has
expired. On multiple evaporator systems, this is controlled by
the Master unit. Each board should have the same setting.
Defaults: electric defrost 30 minutes and air defrost 40 minutes.
• Defrost End Temperature - “dFt” - This is the temperature
at which the defrost will be terminated. Defaults: electric
defrost +60°F and air Defrost +45°F.
• Defrost Delay Start Time - “dFS” - This allows the delay of
the start of the first defrost. Default: 0.0 hours.
• Alarm High Temperature - “ALH” - Temperature at which a
high box temperature alarm will be triggered. This does not
apply during defrost. Defaults: electric defrost +5°F and air
defrost +50°F.
• Alarm Low Temperature - “ALL” - Temperature
at which a Low Box Temperature alarm will be
triggered. Defaults: Electric Defrost -15°F and Air
Defrost +30°F.
• Alarm Time - “ALt” - Time which High Temperature or
Low Temperature condition must exceed before alarm is
triggered. Default: 60 minutes.
• °F/°C - “F-C” - Select units to display temperature.
Fahrenheit or Celsius. Default: Fahrenheit. When °C is
selected, a red dot will appear in the right bottom corner of
the LED display of the Heatcraft Quick Response Controller
board.
• Off cycle fan stir cycle enable – “FnS” – This allows
evaporator fan stir cycling in the off cycle utilizing a
fixed stir cycle timing of 7 minutes on and 5 minutes off.
Selection is made to enable off cycle stir cycling by a
selection of “ON” or to not enable off cycle stir cycling by
a selection of “Off”. Defaults: electric defrost off and air
defrost off
Beacon II Controller
Programming And Reviewing Settings/Changes (continued)
Use the “PROGRAM REVIEW” button to select these items:
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