SR501-HC-4 Overview
Key Features
- 240 VAC Application: 1 zone switching relay when switching both of the circulator hot leads (L1 & L2)
- Operation: Connect a thermostat to the R & W1 and/or W2 terminals on the switching relay
- When the thermostat(s) call for heat, the relays are energized and power is given to the circulator(s)
- Zone Control Power Input: Connect 120 volt AC power input to terminals N and H
- Neutral wire to terminal N
- Hot wire to terminal H
- External Diagnostics: The external lights show full functionality of the switching relay
- The green light should always be on, indicating that power is connected
- When either thermostat calls for heat, both the appropriate relay and red indicating light are energized
- No matter the application, Taco now provides the products to maximize system performance while simplifying both installation and service
