Operation
en
Other commands
“S” status
This command provides an overview of the status of the 4430 unit. The 4430 unit
sends the status data as a text message to the GSM phone of the person sending
the enquiry.
An example of the data received in response to the “1234 S4” command:
Response text message:
Wallas: Heater is off. The heater has been stopped
Local control. The heater has been adjusted with the equipment control
switch.
Set temp:16C The user-set temperature is 16°C
Read temp:25C The measured temperature of the room is 25°C
Volt:12.0V The voltage is 12.0 V
GSM12A+ V3.4 Remote starter’s software version
Connections for a Wallas heater
TXU Data to Wallas 10 pin connector
RXI Data from Wallas 10 pin connector
GND Wallas Data grounding 10 pin connector
T1 Temperature signal input 10 pin connector
T2 Temperature signal 2 input 10 pin connector
GND Normal grounding 10 pin connector
I1 Input 1 10 pin connector
I2 Input 2 10 pin connector
S Signal 10 pin connector
GND Grounding 10 pin connector
+12V Output 7 – 15 VDC 6 pin connector
GND Grounding 6 pin connector
R1 Relay 1 6 pin connector
R1 Relay 1 6 pin connector
R2 Relay 2 6 pin connector
R2 Relay 2 6 pin connector
4430 takes power from the Wallas heater’s control panel
Frequently Asked Questions
No signal LED:
• Check whether the power source is connected correctly
• Check the accumulator charge
• Check the GSM signal
• Check the aerial connection
ThegreenLEDasheswithshortintervals:
• Check whether the SIM card is in place
• Check if the PIN code has been disabled
• Check whether the SIM card is valid
The LED colour is red:
• Wait for 2 – 3 seconds for the unit to automatically restart.
• If it stays on, try to restart the 4430 unit by disconnecting the power source for
10 seconds.
• Please contact the equipment dealer.
D30061
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