Glycoolpac 27hx Manual
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Hoshizaki Lancer reserve the right to change specifications without notice.
Part No 68000204
Images are for illustration purposes only as product may vary.
No 024 – 27 November 2013
7. Control
Settings
7.1 Programming Instructions For Carel PJEZ Refrigeration
Controller
The GP27hx uses a special thermostat developed with Carel to tailor the controller’s functions
with the requirements unique to glycol systems in general.
7.1.1 Set point
Push and hold the “SET” key, “st” is displayed then the current set point is displayed
and flashes, release “SET” key to change the set point value.
Push the “UP” or “DOWN” arrow keys to change the set point value.
To accept the new value press the “SET” key or wait 60 seconds without pressing
any keys for the unit to time out.
7.1.2 Other parameters
Push and hold the “SET” key, until “rd” is displayed.
Select the required parameter to change using the “UP or “DOWN arrow keys then
press the “SET” key to display its value.
Press the “UP” or “DOWN” key to change its value.
Press the “SET” key to store the new value and move to the next parameter.
To exit from programming mode press the “SET” key for 3 seconds or wait 60 seconds
without pressing any keys for the unit to time out.
7.1.3 Eco mode
Eco Mode is also known as “night” or “off peak” mode. It is useful in troubleshooting
freeze-ups. In ECO mode a fixed value is added to the setpoint thus raising the
operating temperature of the glycol bath generally above the freezing point of water.
An offset is added to the Set point: “St” + “r4”. For example, in ECO mode the factory
ECO offset of 7C is added to the factory setpoint of -2C so that the refrigeration now
cycles on a glycol bath of +5C.
To set the ECO mode press and hold the “UP” key, “on” or “oF” is displayed showing
how ECO mode will be changed, when “on” or “oF” disappears release key. In ECO
mode the display will flash between “Ec” and the Glycol bath temperature.
7.1.4 View antifreeze probe temperature
Press and Hold “DOWN” button for approximately 5 seconds.
UP key
DOWN key
SET key
DISPLAY