Low Noise Air Source Heat Pump

Low Noise Air Source Heat Pump

The [Brand/Series Name] Low Noise Air Source Heat Pump is an engineered Monobloc heating and cooling solution designed for high-density urban residential installations, European retrofit projects, and noise-sensitive commercial zones.
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Description

The [Brand/Series Name] Low Noise Air Source Heat Pump is an engineered Monobloc heating and cooling solution designed for high-density urban residential installations, European retrofit projects, and noise-sensitive commercial zones.
By integrating acoustic-optimized fluid dynamics, variable-speed DC inverter twin-rotary compressors, and multi-layer sound-damping enclosures, this series achieves a sound power level down to 52 dB(A) at rated conditions, and 42 dB(A) at a 3-meter distance under Night Quiet Mode. It operates stably at ambient temperatures down to -25 degrees C while delivering high-temperature water up to 75 degrees C, utilizing R290 (Propane) refrigerant with a GWP of 3.

 

Product Range

 

Model Series

Nominal Capacity (Heating at A7/W35)

Power Supply

Refrigerant

Primary Application

HP-NS-06R

6.0 kW

220V-240V/1Ph/50Hz

R290

Small Apartments / Low-energy Houses

HP-NS-09R

9.0 kW

220V-240V/1Ph/50Hz

R290

Detached Houses / Standard Retrofits

HP-NS-12R

12.0 kW

380V-415V/3Ph/50Hz

R290

Large Residential / Multi-family Villas

HP-NS-16R

16.0 kW

380V-415V/3Ph/50Hz

R290

Light Commercial / Hybrid Heating Systems

 

Technical Specifications

 

Technical Parameters

Unit

Model: HP-NS-06R

Model: HP-NS-09R

Model: HP-NS-12R

Model: HP-NS-16R

Heating Capacity (A7/W35)

KW

6.10

9.20

12.10

15.80

COP (A7/W35)

-

4.90

4.85

4.78

4.72

Heating Capacity (A-7/W35)

KW

5.60

8.45

11.00

14.10

COP (A-7/W35)

-

2.95

2.92

2.88

2.85

Max Water Outlet Temperature

Degrees C

75

75

75

75

Operating Ambient Range

Degrees C

-25 to 43

-25 to 43

-25 to 43

-25 to 43

Sound Power Level (LwA) (EN 12102)

DB(A)

49.0

50.5

52.0

53.0

Sound Pressure Level at 1 Meter

DB(A)

37.5

39.0

40.5

41.5

Refrigerant / Charge Volume

Type / kg

R290 / 0.75 kg

R290 / 0.85 kg

R290 / 1.20 kg

R290 / 1.40 kg

ErP Efficiency Class (35 degrees C / 55 degrees C)

-

A+++ / A++

A+++ / A++

A+++ / A++

A+++ / A++

Hydraulic Connection

Inch

G 1" Female

G 1" Female

G 1-1/4" Female

G 1-1/4" Female

Dimensions (W x D x H)

Mm

1000 x 450 x 850

1100 x 480 x 880

1150 x 500 x 1420

1150 x 500 x 1420

Net Weight

Kg

115

125

155

168

 

Key Features

 

TA Lärm Acoustic Compliance: Meets municipal nighttime noise limits, allowing close-to-boundary installations.

R290 Refrigerant: Features a GWP of 3 and ODP of 0, complying with EU F-Gas regulations.

75 degrees C Flow Temperature: Compatible with existing high-temperature radiator systems without emitter replacement.

Inverter Modulation: Frequency scaling matches real-time building load variations to prevent short-cycling.

Integrated Hydraulic Module: Built-in circulation pump, expansion vessel, and safety relief valve reduce installation footprint.

Smart Defrost Algorithm: Dynamic frosting detection minimizes defrost cycle frequency in humid-cold climates.

 

Technology & Working Principle

 

Acoustic Suppression Architecture

Compressor Enclosure: 15mm high-density acoustic damping foam housing decoupled via rubber vibration isolators.

CFD-Optimized Air Duct: Internal air path modeled via Computational Fluid Dynamics (CFD) to reduce vortex shedding noise.

Low-RPM Biomimetic Fan: 550mm 5-blade skewed fan profile lowers rotational speed while sustaining air volume.

Vapor Injection Technology (EVI)

Equipped with an Enhanced Vapor Injection (EVI) scroll compressor and electronic expansion valve (EEV) control loop. Intermediate pressure refrigerant injection maintains heating capacity at -15 degrees C ambient and stable water delivery down to -25 degrees C.

 

Applications

 

Urban Townhouse & Duplex Developments: Restricted garden or balcony spaces bound by local noise codes.

Energy Retrofit Projects: Replacing fossil-fuel boilers by pairing 75 degrees C output with existing radiators.

Multi-Unit Cascading Systems: Up to 6 units linked via Modbus protocol for larger commercial or multi-family demands.

 

System Solutions

 

Hybrid Integration: Interface with existing gas/oil boilers or solar thermal arrays through an external buffer tank.

 

Hydraulic Layout Options:

Option Single-zone direct heating/cooling + Domestic Hot Water (DHW) via 3-way diversion valve.

Option B: Multi-zone mixing valve configuration for mixed floor heating and radiator circuits.

 

OEM & ODM Customization

 

Casing & Branding: RAL standard sheet metal color matching, laser-etched OEM logos, private-label packaging, and localized manuals.

Controller Firmware: Tailored Modbus register mapping, customized touch-screen UI, and integration with KNX or Home Assistant protocols.

Hydraulic Layout Adjustments: Specific port sizing and internal component relocation based on regional plumbing codes.

 

Quality Control & Testing Standards

 

100% Factory Run Testing: Automated electrical safety test, helium leak testing, and a 45-minute thermal running test.

Acoustic Testing Laboratory: Sound power levels verified using an in-house semi-anechoic chamber conforming to EN ISO 3744.

Key Certifications: CE-LVD / CE-EMC, EHPA Keymark (in progress/certified), ErP Efficiency Label (A++ / A+++), and RoHS / REACH compliance.

 

FAQ

 

Q: What is the exact sound pressure level at 3 meters under night mode?

A: For the 9kW model, sound pressure drops from 39 dB(A) to 34.5 dB(A) under Night Quiet Mode, complying with residential night noise regulations.

Q: Does the Monobloc unit require anti-freeze protection in sub-zero climates?

A: Yes. External glycol solution (propylene glycol) or dedicated anti-freeze backup valves must be installed. Frost-protection hydraulic diagrams are provided with every order.

Q: What is the standard lead time for OEM bulk orders?

A: 35 to 45 days following receipt of deposit and technical sign-off on controller UI and sheet metal drawings.

Q: Can this heat pump integrate with a photovoltaic (PV) solar system?

A: Yes. Features a Smart Grid (SG Ready) input and dedicated PV-surplus contact to shift heating loads during peak solar generation.

 

Request a Quote / Technical Documentation

 

Required Heating Capacity / Model: [ ] 6kW [ ] 9kW [ ] 12kW [ ] 16kW
Project Location / Ambient Design Temp: ______________________________
Application Type: [ ] Distribution / Wholesale [ ] HVAC Contractor Project [ ] OEM / Brand Customization
Estimated Annual Volume (Units): ______________________________
Contact Email / Corporate Domain: ______________________________ 

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