Hoshizaki HR24A User Manual
19
b) Service Menu Chart
Setpoint
Service Menu Min.
Max.
Unit
Factory Setting
Description
SP
See r1 See r2 °C/°F 39°F
Cabinet setpoint.
(compressor off temperature).
(see r0 for compressor on temperature).
(compressor off temperature).
(see r0 for compressor on temperature).
Thermistor Input (Do Not Adjust)
Service Menu
Min.
Max.
Unit
Factory Setting
Description
CA1
-25
25
°C/°F
0
Cabinet thermistor temperature offset.
CA2
-25
25
°C/°F
0
Evaporator thermistor temperature
offset.
offset.
P1
0
1
---
0
Decimal point for °C display: 0=no,
1=yes.
1=yes.
P2
0
1
---
1
Temperature display scale: 0=°C, 1=°F
P3
0
2
---
0
Evaporator thermistor:
0=not connected
1=defrost/evaporator fan
2=defrost
0=not connected
1=defrost/evaporator fan
2=defrost
P8
0
250
ds
5
Temperature display delay.
Operation (Do Not Adjust)
Service Menu
Min.
Max.
Unit
Factory Setting
Description
r0
0
15
°C/°F
4°F
Temperature differential above
setpoint for the compressor to
turn on.
setpoint for the compressor to
turn on.
r1
-99
r2
°C/°F
34°F
Minimum cabinet setpoint.
r2
r1
99
°C/°F
52°F
Maximum cabinet setpoint.
r3
0
1
---
0
Locked setpoint. 0=no, 1=yes
r4
0
99
°C/°F
0
Energy saving and overcooling
Do not adjust.
Do not adjust.
r5
0
99
°C/°F
0
r6
0
240
min.
30
Compressor Protection (Do Not Adjust)
Service Menu
Min.
Max.
Unit
Factory Setting
Description
C0
0
240
min.
2
Compressor delay at startup
and after power interruption.
and after power interruption.
C1
0
240
min.
5
Minimum time between
compressor starts.
compressor starts.
C2
0
240
min.
3
Minimum compressor off time.
C3
0
240
sec.
180
Minimum compressor run time.
C4
0
240
min.
10
Compressor off time with
defective cabinet thermistor.
defective cabinet thermistor.
C5
0
240
min.
10
Compressor on time with
defective cabinet thermistor.
defective cabinet thermistor.