INSTALLATION
WARNING:
Although the Wall Mounted Remote Control unit is a low voltage device,
the heater controller to which it connects contains hazardous voltages. The
heater controller must be powered off and isolated before commencing
installation of the Wall Mounted Remote Control unit.
Solaira SMaRT heater controllers are high power electrical devices and
MUST ONLY BE INSTALLED BY A CERTIFIED ELECTRICIAN TO
LOCAL AND NATIONAL ELECTRICAL CODE
The wired connection containing the following 4 connections:
24VDC power (+VE, +)
GND (COM, -)
RS485 A signal (A)
RS485 B signal (B)
The suggested cable for connection between the Wall Mounted Remote Control and the heating controller is:
Unshielded or shielded
2 twisted pairs
Minimum gauge of 24AWG for each of the four conductors.
Maximum length of 24AWG cable 200 feet.
If a longer cable length is required the gauge of the cable may have to be increased due to voltage drop.
The connection between the two units is shown in the pictures below:
Switch SW2 on the main controller PCB should be set to "REMOTE COMMS" as shown in the picture above. When
"REMOTE COMMS" is selected the front panel buttons and the infrared interface on the main controller is disabled and
the unit can only be controlled from the wall mounted remote control unit.
