Foster HR80MF - Parameter Range

7
Parameter Range Description
Default
Setting
FCM
Evaporator fan mode during thermostatic control:
NON
NON Fan(s) run continuously (subject to door & defrost).
TMP
Temperature based control. When compressor is on, fans are
on. When compressor is off, fans run as long as temperature
difference Te-Ta > ‘FDT’. Fans on again with ‘FDH’.
TIM
Time based control. When compressor is on, fans are on.
When compressor is off, fans in accordance to parameters
FT1’, ‘FT2’ and ‘FT3’.
FDT -12.0 ... 0°
Te-Ta difference for fans to turn off after compressor stopped.
(Only if ‘T2’ = ‘YES’ and ‘FCM’ = ‘TMP’).
-1
FDH 1 ... 12.0 °
Temperature differential for evaporator fan restart.
(Only if ‘T2’ = ‘YES’ and ‘FCM’ = ‘TMP’).
3
FDS 0 ... 120 sec Minimum evaporator fan stop period (following door opening etc.). 20
FT1 0 ... 180 sec Fan stop delay after compressor stop. 15
FT2 0 ... 30 min
Timed fan stop following ‘FT1’.
(With FT2 = ‘0’ the fans remain on all the time).
0
FT3 0 ... 30 min
Timed fan run following ‘FT2’.
(With ‘FT3’ = ‘0’ & ‘FT2’ > ‘0’ the fans remain off all the time).
2
ATM
Alarm threshold conguration:
REL
NON
All temperature alarms are inhibited (the following parameter will be
'ADO').
ABS The value set in 'ALA' & 'AHA' represent actual alarm setpoints.
REL
The values set in 'ALR' & 'AHR' are alarm differentials which
relate to ‘SP’ and ‘SP’ + ‘HYS’ (the following parameter will be ‘ALR’).
ATM = 'ABS'
ALA -50 … 120° Low temperature alarm threshold. -3
AHA -50 … 120° High temperature alarm threshold (the following parameter will be 'ATI'). 8
ATM = 'REL'
ALR -12 … 0°
Low temperature alarm differential.
With ‘ALR’ = ‘0’ the low temperature alarm is excluded).
-5
AHR 0 … 12°
High temperature alarm differential.
(With ‘AHR’ = ‘0’ the low temperature alarm is excluded).
5
ATM = 'ABS' or 'REL'
AT1
Alarm probe:
T1
T1 Air temperature probe used for alarm detection.
T2 Evaporator temperature probe used for alarm detection (if 'T2' = 'YES').
T3 Third temperature probe used for alarm detection (if 'DI2' = 'T3').
ATD 0 … 120 min Delay before alarm temperature warning. 90
ADO 0 … 30 min Delay before door open alarm warning (only when 'DI2' = 'DOR'). 8
AHM
Operation in case of high condenser alarm (if 'DI2' = 'T3' and 'T3' =
'CND' ):
NON
NON High condenser temperature alarm inhibited.
ALR Condenser warning - 'HC' displayed, alarm sounds.
STP As 'ALR', with compressor stopped and defrosts suspended.