air source heat pump heating system installation

Below is a structured English technical guide on air source heat pump heating system installation，Key installation specifications, precautions, and maintenance steps are covered for professional reference.

🔧 I. Host Unit Installation Location

1. Ventilation & Sun Exposure
   • Install in well-ventilated areas (balcony, roof, ground), ensuring ≥1m clearance for air intake and ≥2m for exhaust outlets. Avoid obstructions to airflow .
   • Prioritize sunny locations to enhance thermal efficiency and reduce energy consumption .
2. Load-Bearing & Stability
   • The base must withstand 2–3 times the unit’s weight. Use a 15–20cm concrete base for ground installation; wall-mounted units require expansion bolts .
   • Install horizontally with rubber shock pads to minimize operational resonance .
3. Weather & Drainage Protection
   • Top-exhaust units need snow hoods to prevent fan blockage .
   • Defrost drainage pipes must slope toward sewers to avoid ice accumulation and equipment damage .

⚙️ II. Hydraulic System Standards

1. Water Pump Installation
   • Orientation: Mount horizontally to prevent bearing wear or motor burnout .
   • Position: Install on the return-water side (not outlet) to ensure sufficient flow and prevent overheating alarms .
   • Flow Optimization: Minimize elbows to reduce resistance and maintain pump head .
2. Freeze Protection & Exhaust
   • Insulate all outdoor pipes with rubber foam + aluminum tape .
   • Install automatic air vents at the system’s highest point to prevent airlocks .
   • Drain water during prolonged inactivity to avoid pipe freezing .

🔌 III. Electrical & Control Systems

1. Wiring Safety
   • Position the pump junction box upward to prevent condensation damage .
   • Ensure voltage matches unit ratings and install leakage protectors .
2. Temperature Settings
   • Gradually increase initial water temperature (≤40°C) to prevent system shock .
   • Coordinate thermostat settings with host parameters to minimize frequent starts/stops .

🛠️ IV. Commissioning & Maintenance

1. Pre-Debugging Checks
   • Verify leak-free pipes, secure wiring, and proper end-unit connections .
   • Test compressor delay protection (3-min startup), abnormal noise, and condensate drainage .
2. Long-Term Maintenance
   • Clean hydraulic filters and evaporator fins annually .
   • Set to low-temperature mode during short absences; drain and power off for extended disuse