INSTRUKCJA SERWISOWA GHC201.07 i GHC201.08 strona 7
PPUH „GECO” Sp. z o.o. Wydanie I OD DNIA 2018-02-22
‘Cooling set temperature’ is set by the user as parameter ‘u2’ in range of ‘u1+1’- ‘d1’ (factory setting u2=4).
‘Cooling activation temperature’ is calculated as ‘u2’ + value of cooling hysteresis ‘d3’.
‘Cooling off temperature’ is calculated as ‘u2’ - value of cooling hysteresis ‘d3’.
If the parameter 'r5' has been set to 2, the controller controls heating and cooling (in the same range) of
block 1. The adjustment method is shown in figure 2:
Fig 2. Principle of controlling the relays by the control block in "cooling and heating in the same range" - thick line
means switching the relay on
‘Set temperature’ is given by user as ‘u1’ parameter, in range of ‘d0’ - ‘d1-1’ (factory setting: u1=2).
‘Heating activation temperature / cooling off temp.’ is calculated as‘u1’ – value of hysteresis ‘d2’.
‘Heating off temperature / cooling activation temp.’ is calculated as ‘u1’ + value of hysteresis ‘d2’.
The cooling relay is switched on when the following conditions are met:
• 'temperature 1' is equal to or greater than the 'cooling activation temperature'.
• after the time 'c2' has elapsed since the last cooling shutdown.
• The heating relay is turned off
• after the time 'c2' has elapsed since the power was turned on. *
• after the time 'c6' has elapsed - if the 'c5' parameter has been protected - the maximum working time*
*
After turning on the controller with
button, cooling activation time is reduced to:
- 5 seconds, while ‘c2’ is different than zero,
- 0, when ‘c2’ is zero,
It is made to enable service technicians to quickly switch on the cooling.
Heating off temperature / cooling activation temp.
Heating activation temperature / cooling off temp.
Temperature of overcooling alarm activation
Temperature of overheating alarm activation
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