Lennox iComfort S30 Smart Thermostat - Mag-Mount Display Interface; Troubleshooting with Display Removed; HD Display Electrical Interface

- 9 -
2.2.3. Troubleshooting with Display Removed
Check for 12VDC on Mag-Mount terminals + and -.
2.2.4. HD Display Interface (Electrical) (Do not push on terminals)
S Ground
S 5-VDC
S RX
S TX
S Sense
Figure 4. Mag-Mount HD Display Contactors