Description
Rhella TAC424 thermal 4-wire manifold valve actuator
The TAC424 is designed to work with Rhella Radiant Manifolds. It provides individual loop flow control on a multi-zoned manifold.
Featuring
- Status Indicator
- 4-wire
- Normally Closed
- Hand-tight installation onto the manifold.
| Actuator TAC424 Four Wire Normally Closed | |
| Voltage | 24VAC |
| Switch-on current max | 250 mA |
| Operating current | 75 mA |
| Operating capacity | 3 W |
| Closing and opening times | 3 minutes |
| Displacement | 4 mm |
| Pulling Load | 100 N +/- 5 % |
| Ambient temperature | 0°C up to +65 °C |
| Operating range | -58 to 140℉ (-50 to 60 ℃) |
| Weight | 100 g with cable |
Important!
Components may become damaged during transportation and storage.
- Check all parts.
- Replace damaged actuators.
- Do not attempt to repair.
- Mount the actuator so that it is aligned horizontally or facing up. If you align the actuator facing down, its useful life may be shorter due to contamination
| Wire on Actuator | Uponor Zone Control Module | TACO Zone Valve Controller |
| Blue (24 VAC) | R1 | 1 |
| Brown (24 VAC) | R2 | 2 |
| Black (End Switch) | Y1 | 3 |
| Black (End Switch) | Y2 | 4 |
Connect 24 VAC power from a thermostat or zone control module to the brown and blue wires of the actuator. When 24 VAC power is applied to the actuator, it will take 3-4 minutes for the actuator to fully open. When power is cut, it will take 3-4 minutes for the actuator to fully close. A dry-contact end switch is built in to the actuator. When the actuator fully opens, the end switch will close. If required, connect the two black end switch wires to a suitable 24 VAC-powered relay, to activate a device to be operated by the actuator’s end switch. If the end switch is not needed, it is not necessary to use the black wires, and they may be trimmed.
