Foster HR80MF - Page 7

6
BIT25 Controller Default Parameter Values
Parameter Range Description
Default
Setting
SPL -50 … SPH Minimum limit for 'SP' setting. 1
SPH SPL … 110° Maximum limit for 'SP' setting. 3
SP SPL … SPH Temperature setpoint to be achieved. 2
C-H REF or HEA Refrigeration or Heating control mode. REF
HYS 1 … 10° Off / On thermostat differential. 3
CRT 0 … 30 min Compressor rest time. 2
CT1 0 … 30 min
Thermostat run time with faulty T1 probe.
(‘CT1’ = 0 output with faulty T1 will always be off).
6
CT2 0 … 30 min
Thermostat off time with faulty T1 probe.
(‘CT2’ = ‘0’ & ‘CT1’ =>’0’ output with faulty T1 will always be on).
4
CSD 0 … 30 min
Compressor stop delay after door has been opened.
(Only if ‘DS’ = ‘YES’).
1
DFM
Defrost start mode:
TIM
NON Defrost function is disabled (the following parameter will be 'FCM').
TIM Regular time defrost.
FRO Defrost time elapses only in condition of frost accumulation.
DFM = 'TIM' or 'FRO'
DFT 0 … 99 hours Time interval between defrosts. 6
DFB
Defrost timer clock.
YESYES Following mains interruption, timer resumes count.
NO Following mains interruption, timer restarts from zero.
DLI -50 … 110° Defrost end temperature (Only if ‘T2’ = ‘YES’). 15
DTO 1 … 120 min
Maximum defrost duration.
20
DTY
Defrost type:
OFF
OFF Timed off cycle defrost (compressor and heater off).
ELE Electric heater defrost (compressor off, heater on).
GAS Hot gas defrost (compressor and heater on).
DPD 0 … 240 sec Evaporator pump down. Timed pause at start of defrost. 0
DPR 0 ... 20 sec
Defrosting Pressure Reduction. Period between hot gas valve shutting
and compressor stopping (only active when 'DTY' = 'GAS').
3
DRN 0 … 30 min Drain down period. 2
DDM
Defrost display mode:
DEF
RT Real (actual) air temperature.
LT Last temperature display before start of defrost.
SP The current setpoint value.
DEF "DEF"
DDY 0 … 60 min
Defrost display delay period.
Time ‘DDM’ is shown following defrost termination.
10
FID
Fans in defrost:
YESYES Fans run during defrost.
NO Fans do not run during defrost.
FDD -50 … 110°
Evaporator fan restart temperature following defrost.
(Only if ‘T2’ = ‘YES’).
5
FTO 0 … 120 min
Maximum evaporator fan stop period following defrost (only when 'T2' =
'YES').
3