Installation and use precautions for pumps
🔧 I. Host Unit Installation Standards
- Location & Ventilation
- Avoid direct sunlight and greasy areas (e.g., kitchen vents). Install in well-ventilated, dry locations (rooftop/balcony/ground) .
- Clearance requirements: Ensure 1m clearance for air intake and 2m for exhaust outlets to prevent airflow short-circuiting .
- Use stable bases (concrete pedestal or steel frame with anti-vibration pads). Wooden bases are strictly prohibited .
- Drainage & Frost Protection
- Install defrost water drain pipes at a slope. Clear ice buildup regularly in freezing climates to prevent blockages .
- Drain all pipes during long shutdowns and apply insulation wraps for freeze protection .
🚰 II. Piping System Installation Essentials
- Piping Connections & Sealing
- Use high-quality PP-R pipes with Teflon tape for joint sealing. Minimize elbows to reduce flow resistance .
- Install union joints on inlet/outlet pipes for maintenance access; circulate pumps should connect to the return line .
- Insulation & Protection
- Wrap all pipes with rubber foam insulation and galvanized sheets to prevent heat loss and PPR degradation .
- Provide inspection ports for buried pipes; avoid drilling or piercing above floor heating tubes
III. Electrical Safety & Commissioning
- Power Configuration
- Operations must be performed by certified electricians. Use wires rated for unit power, and install leakage protectors mandatorily
- Place control cabinets away from water tanks and rain exposure. Verify grounding reliability post-wiring
- System Testing Protocol
- Water filling & deaeration: Open all valves until stable flow confirms air purge
- Trial run checks:
- Confirm 3-minute compressor delay protection;
- Validate operating current via clamp meter (within rated range);
- Monitor high-pressure values and outlet air temperature [[1]
🛡️ IV. Long-Term Maintenance & Risk Mitigation
- Scheduled Maintenance
- Clean filters annually; inspect and replace worn seals
- Remove dust from heat exchanger fins regularly (grease buildup reduces efficiency)
- Safety Precautions
- Keep flammable materials away from high-temperature components (e.g., thermal oil pumps). Monitor motor temperature (≤85°C) .
- Central heating users should avoid auxiliary pumps to maintain system balance
💡 Critical Checklist: Post-installation "3-inspection rule":
① Leak test (pipes/refrigerant)
② Electrical test (grounding/protection devices) ;
③ Operational test (automatic start/stop at set temperature) .
Retain installation diagrams for future maintenance. Technical references:
- Air-source heat pump installation sequence
- Geothermal heat pump antifreeze protocols
