Product Overview
The Emerson 1311-103 is a 3-wire valve designed for zoning hydronic systems. It is suitable for systems operating up to 50 PSI and is specifically designed for 1-inch I.D. tubing. This valve includes built-in auxiliary contacts, which allow for control of a burner or circulator relay, enhancing system efficiency and control.
- 3-wire hydronic zone valve for 1 inch tubing (I.D.).
- Built-in auxiliary contacts to control burner or circulator relay.
- Automatic recycling manual operator shows valve position at all times.
- Maximum system pressure: 50 PSI.
- Features a stainless steel valve stem for durability and quiet operation.
Setup and Installation
Proper installation of the Emerson 1311-103 zone valve is crucial for optimal performance and system longevity. Ensure all power to the hydronic system is turned off before beginning installation.
- System Preparation: Drain the hydronic system completely to prevent scalding and water damage.
- Mounting: The valve is designed for 1-inch I.D. tubing. Securely mount the valve body into the plumbing system. Ensure the flow direction matches the system requirements.
- Wiring: Connect the 3-wire electrical connections according to your system's wiring diagram. The auxiliary contacts can be wired to control a burner or circulator relay as needed. Refer to the specific wiring instructions provided with the valve for detailed connections.
- Head Installation: Carefully attach the valve head to the valve body. Ensure it is properly seated and secured.
- System Refill and Test: Once installed, slowly refill the hydronic system, bleeding air as necessary. Check for any leaks at the valve connections. Restore power and test the valve's operation by activating the associated zone.
Figure 1: The Emerson 1311-103 zone valve installed on a hydronic system. The valve head is connected to the copper piping, with electrical wiring visible at the top. The manual operator is visible at the bottom of the valve head.
Operating Instructions
The Emerson 1311-103 zone valve operates automatically in response to signals from your thermostat or zone controller. When a call for heat is received for its specific zone, the valve will open to allow hot water to circulate through that zone.
- Automatic Operation: The valve opens and closes automatically based on the demand from the zone thermostat.
- Manual Operator: An automatic recycling manual operator is integrated into the valve, which indicates the current position of the valve (open or closed). This can be used for manual override during system testing or in case of power failure, though it will return to automatic operation once power is restored or the system demands change.
- Auxiliary Contacts: The built-in auxiliary contacts activate when the valve is fully open, signaling the boiler or circulator to operate, ensuring efficient heat delivery to the designated zone.
Maintenance
Regular inspection and maintenance can extend the life of your zone valve and prevent system issues.
- Leak Inspection: Periodically check the valve body and connections for any signs of water leaks. Leaks often indicate worn O-rings within the valve.
- O-Ring Replacement: If minor leaks are detected, the O-rings inside the valve may need replacement. This procedure requires draining the system and disassembling the valve head from the body. It is recommended to consult a qualified technician for this task.
- Valve Head Replacement: In cases of persistent leaks, operational failure, or significant wear, replacing the entire valve head (the electrical and mechanical actuator part) is often the most effective solution. The valve body can typically remain in place, simplifying the replacement process.
- Cleanliness: Keep the area around the valve clean and free from debris to ensure proper operation and prevent obstruction of moving parts.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Valve is leaking | Worn O-rings or seals within the valve body. | Drain system, replace O-rings, or replace the valve head. Consult a professional if unsure. |
| Zone not heating | Valve not opening, electrical issue, or thermostat malfunction. | Check thermostat settings. Verify power to the valve. Inspect wiring for loose connections. Manually operate the valve to check if it moves. |
| Valve not closing | Debris obstructing valve, faulty motor, or electrical issue. | Check for obstructions. Verify electrical signal to close. If the motor is faulty, the valve head may need replacement. |
| Auxiliary contacts not activating | Valve not fully opening, faulty contacts, or wiring issue. | Ensure the valve opens completely. Check wiring to the burner/circulator relay. If contacts are faulty, replace the valve head. |
Specifications
| Brand | Emerson |
| Model Number | 1311-103 |
| Material | Stainless Steel |
| Item Dimensions (L x W x H) | 8.9 x 5.7 x 3.5 inches |
| Inlet Connection Size | 1 Inches |
| Inlet Connection Type | Threaded |
| Outlet Connection Size | 1 Inches |
| Outlet Connection Type | NPT |
| Maximum Operating Pressure | 50 PSI |
| Number of Ports | 2 |
| Voltage | 24 Volts |
| Included Components | Zone valve, instructions manual |
| UPC | 786710003950 |
