16
Control Board
Output
REFT
Refrigerant Type (If REFT = 404A, then R-404A refrigerant, If REFT = R22, then R-22 refrigerant)
SHSP
Superheat Set Point seen at the evaporator (5ºF to 20ºF)
RMSP
Room Temperature Set Point or "cut-out" (-40ºF to 75ºF range)
ADIF Cut-in Temperature Differential (0ºF to 25ºF)
MOTM Minimum Time the EEV is closed, or minimum off time (0 to 15 minutes)
MRTM Minimum Time the EEV is open, or minimum run time (0 to 15 minutes)
MNPR Minimum Suction Pressure Set Point (-14.6 psi to 3.0 psig)
MOP Maximum Suction Pressure Set Point (-5.0 psi to 99.0 psig)
DFPD Number of Defrost/Day. When DFPD=0, demand defrost, when DFPD = 1-12, scheduled defrost
DFMD
Defrost Mode (If DFMD = ELEC, then electric, If DMFD = HGDF, then reverse cycle, If DFMD =AIRD, then air)
INTV
Only applicable when in the demand defrost scheme and RMSP <=35ºF, this Set Point designates
the time between a safety defrost. (Example; if INTV = 480, then a defrost will occur every 8 hrs (480/60).
PMDM Pump Down Timeout duration (0-5 minutes). Only applicable to elec. and air defrost schemes
DTSP Defrost Termination Temperature (40ºF to 90ºF)
MXDT Maximum Defrost Duration (10 to 99 minutes)
DRAN Drip Time Duration (0-10 minutes)
MEVM Multiple Evaporator Mode, ALTN = Alternating mode, SYNC = Peer to Peer Mode
ALSP
If in alternating mode, this value indicates the number of degrees above the cut-in Set Point
(RMSP + ADIF + ALSP) at which both controllers are overridden and both go into COOL MODE.
HITA
High Temperature Alarm Set Point (-35ºF to 60ºF)
HITD Temperature Alarm Delay (10 to 59 minutes)
LOTA Low Temperature Alarm Set Point (-40ºF to 55ºF)
The Following list indicates parameter values of the controller and may be changed to customize the refrigeration system
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