Installation Manual

2.3.3. Harness 3 - RS485 PN WATSTATH301 2.3.4. Harness 4 – Damper PN WATSTATH401
Pin Number Function Color
1 RS-485 A (-) Black
2 RS-485 B (+) Red
3 GND Green
Pin Number Function Color
1 Reserved no connection N/A
2 TER_Dam R 24 VAC Red
3 TER Dam No Normally Open White
4 TER Dam No Normally Closed Black
2.3.5 Wiring Diagrams
2.3.5.1 Diagram 1 – 24VAC 4-Pipe FCU – Maestro App Type 3F 1S H/C
2.3.5.2 Diagram 2 – HpB Single Stage Heat 24VAC – Maestro App Type 3F HpB-1SH