R410a Lanhai rotary compressor for heat pump mini chiller
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Cooling capacity 20kW-50kW
1. Structure: Panels and base frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents.
2. Compressor: Hermetic scroll type compressor, equipped with the crankcase heater and thermal protection with thermal overload cut-out and crankcase heater mounted on rubber vibration isolators.
3. Axial fan: External rotor type axial fans, equipped with single phase direct drive motors, low noise 6 poles, protection level IP54, provided with a protective outlet grille.
4. Evaporator: High efficiency and low pressure drop stainless steel (AISI 316) water exchangers, with anti-freeze heating element (option) and differential pressure switch, factory insulated with flexible close cell material
5. Condenser Coils are consisting of seamless copper tubes mechanically expanded into blue hydrophilic aluminum fins, 100% fully quality tested; sub cooling circuit to prevent freezing at the base (optional); protected with metal grill.
6. Desuperheater: High efficiency stainless steel brazed plate heat exchanger, factory insulated with flexible close cell material(optional).
7. Refrigerant circuit: Copper tube connection with charge valve, filter, sight glass, gas-liquid separator, thermostatic expansion valve, low pressure switch with automatic reset, high pressure switch with manual reset. The heat pump unit is completed also with 4-way valve, liquid receiver and one way valve.
8. Water circuit: Built with air vent valve, water drain connection, and female-threaded hydraulic connectors. Water pump (8kW-30kW), differential pressure switch. Expansion tank (8kW-30kW)
9. Electric panel: Compressor contactor, Compressor protection breaker, Fan motor protection breaker, Control circuit protection breaker, Phase sequence relay (only for 3-phase), Programmable microprocessor controller
10. Optional: Additional electric heater embedded in the coils for defrosting in low temperature ambient. It must be factory installed; Stainless steel covering; Remote condenser; Tube in tube heat exchanger; Water circuit electric heater.
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