Instructions for using electric valves

Dec 06, 2025

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I. Installation: 3 Simple Steps for Most Scenarios​

1. Pre-Installation Checks (Avoid Rework)​

Specification Matching: Ensure the electric valve size (DN15/DN20/DN25 as mainstream specifications) matches the pipeline, and the threaded interface complies with national standards (G thread/BSP thread);​

Environment Adaptation:​

Temperature Range: Standard models (-10℃~+110℃); choose special anti-freeze/high-temperature resistant models for extreme environments (Nordic/high-temperature scenarios);​

Protection Rating: ≥IP65 required for humid environments (bathrooms/basements) to resist dust and water splashes;​

Smart Compatibility: When paired with a smart thermostat, confirm protocol compatibility (KNX/Zigbee/WiFi) to ensure "Seamless Integration with Smart Thermostats".​

2. Core Installation Steps (No Professional Qualification Needed, One Person Operable)​

Shut Off Supply & Relieve Pressure: Close the main pipeline valve, drain residual water/gas in the pipeline, and clean the pipeline interface (remove rust and dirt);​

Fix the Valve Body: Install according to the direction indicated by the arrow on the valve body (medium flow direction), either horizontally or vertically. Wrap 3-5 rounds of PTFE tape around the interface for sealing, and tighten moderately with a wrench (avoid thread stripping);​

Power On & Pairing:​

Wired Models: Connect wires by color (corresponding to live wire/neutral wire/ground wire) and dock with the thermostat control terminal;​

Wireless Models: After powering on, press and hold the pairing button (indicator light flashes), search and connect via the thermostat APP, then test "Thermostat-Controlled Precision" (set temperature and observe valve response).​

3. Installation Taboos​

Do not install in reverse (against medium flow direction), otherwise temperature control will fail;​

Avoid installation near direct sunlight or high-temperature heat sources, which may affect the service life of electronic components.​

II. Operation: 3 Control Modes for Different Needs​

1. Smart Thermostat Control (Mainstream Recommendation)​

Basic Operation: Set the target temperature via the thermostat panel/APP; the electric valve automatically achieves ±0.1℃ precise temperature control (Thermostat-Controlled Precision), dynamically adjusting flow instead of simple "on/off";​

Scene Linkage: Set "Wake-Up/Sleep/Away" modes, and the electric valve responds synchronously (e.g., automatically reduces flow to save energy when away from home);​

Voice Control: Supports Google Home/Amazon Echo, etc. Execute commands via voice (e.g., "Set the living room to 23℃").​

2. Manual Emergency Operation (During Power Outage/Failure)​

The valve body is equipped with a manual knob on the side; rotate to adjust the opening degree (0-100%) for temporary heating/refrigeration;​

Automatically restores to thermostat control mode after power on, no additional reset required.​

3. Centralized Control (Commercial Scenarios)​

For office buildings, hotels, etc., set parameters for multiple electric valves in batches via a cloud platform, and synchronously receive energy consumption data from thermostats to achieve unified management.​

III. Maintenance: Low-Cost Care to Extend Service Life to 10 Years​

1. Regular Inspections (Once Every 6-12 Months)​

Appearance: Check for valve body leakage and loose interfaces; re-tighten interfaces for slight leakage;​

Function: Send commands via the thermostat to test response speed (normal ≤0.5 seconds) and ensure precise temperature control does not degrade;​

Cleaning: Wipe surface dust with a dry cloth to avoid oil accumulation (no need to clean internal flow channels in areas with good water quality).​

2. Long-Term Shutdown Handling​

Turn off the power and drain medium in the pipeline to avoid corrosion from accumulated water;​

For smart models, set "Shutdown Mode" in the APP for low-power standby (≤0.3W, complying with energy-saving standards).​

3. Maintenance Taboos​

Do not wipe with strong acid/alkali cleaners to avoid corrosion of brass/stainless steel valve bodies;​

Do not cut off power frequently to prevent loss of thermostat pairing information.​

IV. Common Troubleshooting (Solve 90% of Problems Quickly)​

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Fault Phenomenon​

Common Causes​

Troubleshooting Methods​

No response to thermostat commands​

Pairing disconnection/Power failure/Protocol incompatibility​

1. Re-pair the electric valve with the thermostat; 2. Check if the power socket is energized; 3. Verify protocol compatibility (e.g., KNX requires a dedicated gateway)​

Large temperature deviation​

Valve jamming/Inappropriate sensor position​

1. Rotate the manual knob 3 rounds to clear jamming; 2. Move the thermostat sensor (away from doors, windows, and air conditioners)​

Valve body leakage​

Aging gasket/Loose interface​

1. Replace with food-grade gasket; 2. Tighten the interface moderately (avoid over-tightening)​

Loud operation noise​

Unfixed valve body/Excessively fast water flow​

1. Fix the valve body with a bracket to reduce vibration; 2. Lower the maximum flow rate in the thermostat​

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V. Usage Tips: Improve Efficiency and Service Life​

Residential Scenarios: Pair with a smart thermostat for zone-specific temperature control, independently adjusting bedrooms and living rooms for energy savings and comfort;​

Commercial Scenarios: Set "Unoccupied Period Frequency Reduction Mode" to reduce energy waste and operational costs;​

Extreme Environments: Enable the thermostat's "Anti-Freeze Mode" in Nordic winters; the electric valve automatically circulates a small flow of medium to prevent pipeline freezing and cracking.​

The core advantages of electric valves lie in "smart synergy + precise temperature control". Following this usage guide can not only maximize their energy-saving and convenient features but also extend their service life. For customized operation suggestions for specific scenarios (e.g., industrial temperature control, old building renovation), feel free to contact us!​

👉 Get Customized Usage Solutions​

Email: HYSEN@cn-hysen.com | Call: +86 137 9975 9669​

Compatible with mainstream smart thermostats. CE/RoHS/ERP Certified.

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