Panasonic PAW280MAH2 Betriebsanleitung PDF herunterladen (Seite 72)

Control

7. Close the AHU Kit enclosure again (see “4.1 Installation of AHU Kit“ – step 5).

8. Via the signal wiring from the external BMS, which is now connected to contacts AI3 and AI4

(see step 2), select the 0–10 V demand control functionality as follows:

Input

Voltage* (V)

0 – 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 – 10.0

Demand (%

of nominal

current)

Stop

40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 No limit

Thermo-Off

* If a voltage range (0 – 0.5 or 9.5 – 10.0 V) is indicated, the applied voltage must be within the given limits.

However, if a single value (e.g. 1.0 V) is indicated, the applied voltage must be within +/–0.1 V of the given value to achieve the assigned demand setting.

Examples: “Stop“ can be achieved with any analogue input value greater than 0 V and less than or equal to 0.5 V;

40 % demand can be achieved with any analogue input value greater than or equal to 0.9 V and less than or equal to 1.1 V etc.

1 Stop: AHU system / indoor unit is completely switched off.

2 No Limit: No restrictions applied by BMS to AHU system / indoor unit performance (equivalent to “full-load operation“ of AHU system / indoor unit.

3 Thermo-Off: No cooling / heating operation (compressor is switched off; however, the fans may still be operating). For example, forced Thermostat-Off

mode can be used for free cooling.

7.2.4 Error Codes

Error Code Meaning

HHH Sensor breakage or polarity inversion.

Measured value is above the valid upper limit.

LLL Sensor short-circuit or polarity inversion.

Measured value is below the valid lower limit.

7.2.5 Maintenance and Service

In normal operation, the thermostat is maintenance-free.

To prolong its lifecycle, the following precautions should be observed:

● Protect the electronic components from condensation moisture.

● Avoid touching the buttons with ngernails or other pointed objects to prevent