PRO3 Top Mount Packaged Refrigeration System Outdoor
Keypads
| NORMAL OPERATION |
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BUT. NO. | pressing | pressing | START UP | ||
the button | with other | ||||
| alone | buttons |
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| pressed |
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| together |
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| more than | with 3 |
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| activates/ |
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1 | 3 s: switch |
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deactivates |
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| ON/OFF |
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| the |
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| continuous |
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| cycle |
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| - 1 s: |
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| displays/ |
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| sets the set |
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| point |
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| - more |
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| than 3 s: |
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| accesses |
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| the |
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2 | parameter | – | RESET |
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setting | current EZY |
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| menu |
| set |
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| (enter |
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| (2 and 3) | |
| password |
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| activate | |
| 22) |
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| parameter | |
| - mutes the |
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| reset | |
| audible |
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| procedure |
| alarm |
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| (buzzer) |
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| pressed |
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| more | together |
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| with 1 | for 1 s |
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| than 3 s: |
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| activates/ | displays |
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3 | activates/ |
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deactivates | firmware |
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| deactivates |
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| the defrost | the | version |
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| continuous |
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| cycle |
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Preliminary Configurations
Once the electrical connections have been completed, simply
Heatcraft recommends that you check the parameters listed.
| Control Parameters |
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st | set point |
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rd | set point differential |
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| Defrost Parameters |
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d0 | type of defrost |
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dl | interval between two defrosts | Controllers | ||
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dt | Alarm Parameters | |||
end defrost temperature |
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dP | maximum defrost duration |
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Ad | temperature alarm delay | |||
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AL | low temperature alarm threshold/deviation |
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AH | high temperature alarm threshold/deviation |
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Functions Available from Keypad
ON AND OFF
Switching the instrument ON: press UP for more than 3 s (when pressing the button, the display shows ON).
Switching the instrument OFF: press UP for more than 3 s. The display shows the message “OFF”, alternating with the temperature measured by the set probe.
In off status, the following functions are disabled (if featured by the model):
•compressor control / duty setting / continuous cycle;
•defrost;
•fan control;
•alarms : ‘LO’, ‘HI’, ‘IA’, ‘cht’, ‘CHT’;
•door switch (A4= 7/8 );
•buzzer (when available)
While the following are enabled:
•temperature display, alternating with the message “OFF”;
•parameter display and setting;
•alarms: “E0”, “E1”, “E2”;
•the internal timer relating to parameter ‘dI’ is updated. If ‘dI’ expires in OFF status, a defrost is performed when restarting;
•auxiliary relay management, only in the following configurations:
•H1= = 1/2 (“E0” alarm only)
•H1= 3, A4= 6;
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