SERVICE AND INSTALLATION MANUAL
www.maxximumfoodservice.com
2. MAIN FUNCTIONS
2.1 HOW TO SEE THE SETPOINT
1. Push and immediately release the SET key: the display will show the set point value;
2. Push and immediately release the SET key or wait for 5 seconds to display the sensor value
again.
2.2 HOW TO CHANGE THE SETPOINT
1. Push the SET key for more than 2 seconds to change the set point value;
2. The value of the set point will be displayed and the
LED starts blinking;
3. To change the set value push the
or
key within 10 seconds;
4. To memory the new set point value and push the SET key again or wait 10 seconds.
2.3 HOW TO START A MANUAL DEFROST
Push the
key for more than 2 seconds and a manual defrost will start
2.4 HOW TO LOCK THE KEYBOARD
1. Keep pressed the
and
keys for more than 3 seconds;
2. The “POF” message will be displayed and the keyboard will be locked. At this point, it will
be possible only to see the set point or the MAX or Min temperature stored;
3. If a key is pressed more than 3s the ”POF” message will be displayed.
2.5 HOW TO UNLOCK THE KEYBOARD
Keep pressed the
and
keys together for more than 3 seconds, until the “Pon”
message is displayed, then press
or
key to select the item to check or program.
3. ALARM SIGNALS
HOW TO SEE THE ALARM AND RESET THE RECORDED ALARM
1. Push the
or
key and the alarm signals will be displayed;
2. When the signal is displayed, hold the SET key until the “rst” message is displayed, and push the
SET key again, the “rst” message start blinking and the normal temperature will be displayed
again.
MESSAGE
CAUSE
OUTPUTS
“P1”
Room probe failure
Compressor Output according to par. “Con” and “COF”
“P2”
Evapurator probe failure
Defrost end is timed.
.
“HA”
Maximum temperature alarm
Outputs unchanged.
“LA”
Minimum temperature alarm
Outputs unchanged.
“dA”
Door open
Compressor and fans restart.
“EA”
External alarm
Outputs unchanged.
“CA”
“CA”
Serious external alarm (¡1F=bAL)
All outputs OFF.
Pressure switch alarm(¡1F=PAL)
All outputs OFF.
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