HM161HF - Heat pump LG - Free user manual and instructions
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| Product Type | Air-to-water heat pump |
| Brand | LG |
| Model | HM161HF |
| Heating Capacity | 16.0 kW (approx. 54,600 BTU/h) |
| Cooling Capacity | 14.0 kW (approx. 47,800 BTU/h) |
| COP (Heating) | Up to 4.5 |
| Refrigerant | R32 |
| Compressor Type | Twin-rotary inverter |
| Power Supply | 380-415 V, 3N~, 50 Hz |
| Water Connection | G1B (female thread) for inlet and outlet |
| Dimensions (W x H x D) | 799 x 710 x 1075 mm |
| Weight | 81 kg (without packaging) |
| Operating Ambient Temperature | -20°C to 43°C |
| Leaving Water Temperature | 5°C to 60°C (adjustable) |
| Noise Level (Outdoor) | 55 dB(A) at 1 m |
| Safety Features | Automatic defrost, high-pressure switch, overheat protection, anti-freeze |
| Maintenance | Clean air filter, inspect water pressure, check condensate drain, periodic service |
| Installation Type | Outdoor, floor-standing monobloc |
| Certifications | CE, EN 14511 |
| Repairability | Spare parts available for 10 years, modular components |
Frequently Asked Questions - HM161HF LG
What type of heat pump is the LG HM161HF?
The LG HM161HF is an air-to-water heat pump designed for residential and light commercial heating. It extracts heat from the outside air and transfers it to water for hydronic heating systems, such as radiator or underfloor heating.
What refrigerant does the HM161HF use?
This model uses R32 refrigerant, which has a low global warming potential (GWP) of 675 and is more energy-efficient than older refrigerants like R410A. Always handle refrigerant by certified technicians.
Can this heat pump provide both heating and cooling?
Yes, the LG HM161HF is a reversible heat pump. It can operate in heating mode to warm your home in winter and cooling mode to provide chilled water for fan coils or other cooling systems during summer.
What are the recommended maintenance tasks for the LG HM161HF?
Regular maintenance includes cleaning or replacing the air filter, checking water pressure in the system, inspecting condensate drain for blockages, and scheduling a professional service every 1-2 years to check refrigerant levels and electrical connections.
How do I reset the heat pump after a fault?
To reset the unit, turn off the power supply using the main switch, wait 5-10 minutes, then turn it back on. If the error persists, consult the error code table in the manual or contact a certified LG technician. Never attempt internal repairs yourself.
What is the operating temperature range for the HM161HF?
The heat pump is designed to operate in ambient temperatures from -20°C to 43°C. Below -20°C, heating performance may degrade, and an auxiliary or backup heater is recommended. The leaving water temperature can be set between 5°C and 60°C.
How noisy is the LG HM161HF?
The outdoor unit has a sound pressure level of approximately 55 dB(A) at a distance of 1 meter. This is comparable to a moderate conversation. For quietest operation, ensure proper installation with vibration absorbers and adequate clearance.
What are the water connection requirements?
The unit has standard G1B threaded connections (female) for the water inlet and outlet. The water circuit must be properly pressurized (typically 1.5-2.5 bar) and air purged. Use flexible hoses or copper pipes with compatible fittings.
How can I improve the energy efficiency of my heat pump?
To maximize COP (Coefficient of Performance), maintain a lower leaving water temperature (e.g., set to 35°C for underfloor heating, not 55°C for radiators), keep the air filter clean, ensure good airflow around the outdoor unit, and regularly descale the water circuit.
Where can I find spare parts for the HM161HF?
LG provides genuine spare parts for at least 10 years from the end of production. You can order them through authorized LG service centers or official LG distributors. To identify parts, have your model number and serial number ready.
User questions about HM161HF LG
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USER MANUAL HM161HF LG
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Product information
Brand : LG
Model : HM161HF
Category : Heat pump