Robur GAHP Line AR Series, Installation, Use And Maintenance Manual

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Plumbing installer section
Ed. 2014-08
45
To configure the appliance, access menu 3 of the electronic board.
With regard to the hydraulic configuration, three parameters may be set for cooling mode
and three for heating mode. Select the letter E to exit to the previous menu.
HYDRAULIC PARAMETER THE DISPLAY SHOWS
SELECT COLD WATER THERMOSTATING
COLD WATER SET-POINT
COLD WATER TEMPERATURE DIFFERENTIAL
SELECT HOT WATER THERMOSTATING
HOT WATER SET-POINT
HOT WATER TEMPERATURE DIFFERENTIAL
(EXIT TO PREVIOUS MENU)
Table 18 - Parameters for hydraulic configuration of the appliance
Description of parameters:
- Select water thermostat action, parameters 73 and 160: these parameters may have
two values, 0 or 1. When the user chooses:
•
0: the temperature that affects the activation and deactivation of the
appliance is detected by the sensor on the INLET water, i.e. water
flowing into the appliance.
•
1: the temperature that affects the activation and deactivation of the
appliance is detected by the sensor on the OUTLET water, i.e. water
flowing out of the appliance.
- Water set-point, parameters 75 and 161: these parameters set the water temperature
that, when reached, causes the appliance to be deactivated.
- Water differential, parameters 76 and 162: these parameters represent an interval in
degrees that, when added to the set-point, defines the temperature at which the
appliance is reactivated.
Operation in cooling mode:
The appliance functions by cooling the water until it reaches the set-point temperature. At
this point it switches off. The temperature of the water rises until it reaches the
temperature corresponding to "set-point + differential"; when this is reached the appliance
switches on again.
Example:
Thermostating:
reading from outlet sensor.
Set-point: +44.6 °F