Hitachi Cooling & Heating / SERIES OVERVIEW

Hitachi AVSL Low-Ambient Air-Source Heat Pumps

R410A low-ambient EVI inverter scroll heat pump

Brand
Hitachi Cooling & Heating
Series
AVSL
Equipment category
Heat Pumps
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Product overview

The AVSL range comprises RHUA065AVSL and RHUA130AVSL. Each has separate nominal heating, standard heating, low-temperature heating and cooling test data. The plate-type water heat exchanger and AVSL electrical / hydraulic requirements distinguish it from AVXL. Selection should follow the project’s outdoor design point and required water temperature, using the matching test condition.

Key technical specifications

Match the complete model and configuration to your design duty. Compare ratings only at the stated water and ambient conditions; then send the model reference, quantity and project requirements for review.

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AVSL — nominal cooling (A)

Independent AVSL heat-pump selection; test points are not interchangeable.

AVSL — nominal cooling (A). Independent AVSL heat-pump selection; test points are not interchangeable.
Model referenceCooling capacity(kW)Cooling input(kW)Cooling COP(W/W)IPLV (C)(W/W)
RHUA065AVSLRequest a Quote6521.63.014.45
RHUA130AVSLRequest a Quote13043.334.45
  • A — nominal cooling: outdoor air 35 °C dry bulb; leaving chilled water 7 °C; water-flow coefficient 0.172 m³/(h·kW).
  • B — nominal heating: outdoor dry bulb / wet bulb −12 / −13.5 °C; leaving hot water 41 °C; water flow established by nominal cooling duty.
  • C — standard heating: outdoor dry bulb / wet bulb 7 / 6 °C; leaving hot water 45 °C; water-flow coefficient 0.172 m³/(h·kW).
  • D — low-temperature heating: outdoor dry bulb −20 °C; leaving hot water 41 °C; water flow established by nominal cooling duty. No wet-bulb value is supplied for D.
  • Low-temperature heat output is withheld pending clarification of the source table’s capacity-unit label. Input and COP are retained as printed; no heat output is calculated from them.
  • Printed envelope bounds: cooling water leaving 5–20 °C and air 5–43 °C; heating water leaving 25–50 °C and air −26–25 °C. Bounds do not establish every water / air combination; use the manufacturer operating envelope for selection.
  • R410A; main supply 380 V / 3 phase / 50 Hz. Water-side design pressure 1.0 MPa; projects above 1,000 m require manufacturer review. These are equipment test points, not a destination-climate guarantee.
  • Manufacturer reference: Z0050010-251008; physical PDF page 9.

AVSL — nominal heating (B)

Independent AVSL heat-pump selection; test points are not interchangeable.

AVSL — nominal heating (B). Independent AVSL heat-pump selection; test points are not interchangeable.
Model referenceHeating capacity(kW)Heating input(kW)Heating COP(W/W)IPLV (H)(W/W)
RHUA065AVSLRequest a Quote4418.22.422.95
RHUA130AVSLRequest a Quote8836.62.42.95
  • A — nominal cooling: outdoor air 35 °C dry bulb; leaving chilled water 7 °C; water-flow coefficient 0.172 m³/(h·kW).
  • B — nominal heating: outdoor dry bulb / wet bulb −12 / −13.5 °C; leaving hot water 41 °C; water flow established by nominal cooling duty.
  • C — standard heating: outdoor dry bulb / wet bulb 7 / 6 °C; leaving hot water 45 °C; water-flow coefficient 0.172 m³/(h·kW).
  • D — low-temperature heating: outdoor dry bulb −20 °C; leaving hot water 41 °C; water flow established by nominal cooling duty. No wet-bulb value is supplied for D.
  • Low-temperature heat output is withheld pending clarification of the source table’s capacity-unit label. Input and COP are retained as printed; no heat output is calculated from them.
  • Printed envelope bounds: cooling water leaving 5–20 °C and air 5–43 °C; heating water leaving 25–50 °C and air −26–25 °C. Bounds do not establish every water / air combination; use the manufacturer operating envelope for selection.
  • R410A; main supply 380 V / 3 phase / 50 Hz. Water-side design pressure 1.0 MPa; projects above 1,000 m require manufacturer review. These are equipment test points, not a destination-climate guarantee.
  • Manufacturer reference: Z0050010-251008; physical PDF page 9.

AVSL — standard heating (C)

Independent AVSL heat-pump selection; test points are not interchangeable.

AVSL — standard heating (C). Independent AVSL heat-pump selection; test points are not interchangeable.
Model referenceHeating capacity(kW)Heating input(kW)Heating COP(W/W)
RHUA065AVSLRequest a Quote7020.53.41
RHUA130AVSLRequest a Quote14041.23.4
  • A — nominal cooling: outdoor air 35 °C dry bulb; leaving chilled water 7 °C; water-flow coefficient 0.172 m³/(h·kW).
  • B — nominal heating: outdoor dry bulb / wet bulb −12 / −13.5 °C; leaving hot water 41 °C; water flow established by nominal cooling duty.
  • C — standard heating: outdoor dry bulb / wet bulb 7 / 6 °C; leaving hot water 45 °C; water-flow coefficient 0.172 m³/(h·kW).
  • D — low-temperature heating: outdoor dry bulb −20 °C; leaving hot water 41 °C; water flow established by nominal cooling duty. No wet-bulb value is supplied for D.
  • Low-temperature heat output is withheld pending clarification of the source table’s capacity-unit label. Input and COP are retained as printed; no heat output is calculated from them.
  • Printed envelope bounds: cooling water leaving 5–20 °C and air 5–43 °C; heating water leaving 25–50 °C and air −26–25 °C. Bounds do not establish every water / air combination; use the manufacturer operating envelope for selection.
  • R410A; main supply 380 V / 3 phase / 50 Hz. Water-side design pressure 1.0 MPa; projects above 1,000 m require manufacturer review. These are equipment test points, not a destination-climate guarantee.
  • Manufacturer reference: Z0050010-251008; physical PDF page 9.

AVSL — low-temperature heating (D)

Independent AVSL heat-pump selection; test points are not interchangeable.

AVSL — low-temperature heating (D). Independent AVSL heat-pump selection; test points are not interchangeable.
Model referenceLow-temperature heating input(kW)Low-temperature heating COP(W/W)
RHUA065AVSLRequest a Quote17.71.85
RHUA130AVSLRequest a Quote35.61.85
  • A — nominal cooling: outdoor air 35 °C dry bulb; leaving chilled water 7 °C; water-flow coefficient 0.172 m³/(h·kW).
  • B — nominal heating: outdoor dry bulb / wet bulb −12 / −13.5 °C; leaving hot water 41 °C; water flow established by nominal cooling duty.
  • C — standard heating: outdoor dry bulb / wet bulb 7 / 6 °C; leaving hot water 45 °C; water-flow coefficient 0.172 m³/(h·kW).
  • D — low-temperature heating: outdoor dry bulb −20 °C; leaving hot water 41 °C; water flow established by nominal cooling duty. No wet-bulb value is supplied for D.
  • Low-temperature heat output is withheld pending clarification of the source table’s capacity-unit label. Input and COP are retained as printed; no heat output is calculated from them.
  • Printed envelope bounds: cooling water leaving 5–20 °C and air 5–43 °C; heating water leaving 25–50 °C and air −26–25 °C. Bounds do not establish every water / air combination; use the manufacturer operating envelope for selection.
  • R410A; main supply 380 V / 3 phase / 50 Hz. Water-side design pressure 1.0 MPa; projects above 1,000 m require manufacturer review. These are equipment test points, not a destination-climate guarantee.
  • Manufacturer reference: Z0050010-251008; physical PDF page 9.

AVSL — module / water-side data

Independent AVSL heat-pump selection; test points are not interchangeable.

AVSL — module / water-side data. Independent AVSL heat-pump selection; test points are not interchangeable.
Model referenceMain power supplyRefrigerantRefrigerant circuits(count)Compressors(count)Compressor typeWater heat exchangerWater flow(m³/h)Water pressure drop(kPa)Water connectionFans(count)Fan input (as printed)(kW)Total airflow(m³/h)Length(mm)Width(mm)Height(mm)Expansion deviceNet weight(kg)Maximum current(A)
RHUA065AVSLRequest a Quote380 V / 3 phase / 50 HzR410A12EVI DC-inverter scrollStainless-steel plate11.1855DN50 grooved11.6521500137012002410Electronic expansion valve57047.5
RHUA130AVSLRequest a Quote380 V / 3 phase / 50 HzR410A24EVI DC-inverter scrollStainless-steel plate22.3640DN65 grooved23.343000243812002410Electronic expansion valve105095
  • A — nominal cooling: outdoor air 35 °C dry bulb; leaving chilled water 7 °C; water-flow coefficient 0.172 m³/(h·kW).
  • B — nominal heating: outdoor dry bulb / wet bulb −12 / −13.5 °C; leaving hot water 41 °C; water flow established by nominal cooling duty.
  • C — standard heating: outdoor dry bulb / wet bulb 7 / 6 °C; leaving hot water 45 °C; water-flow coefficient 0.172 m³/(h·kW).
  • D — low-temperature heating: outdoor dry bulb −20 °C; leaving hot water 41 °C; water flow established by nominal cooling duty. No wet-bulb value is supplied for D.
  • Low-temperature heat output is withheld pending clarification of the source table’s capacity-unit label. Input and COP are retained as printed; no heat output is calculated from them.
  • Printed envelope bounds: cooling water leaving 5–20 °C and air 5–43 °C; heating water leaving 25–50 °C and air −26–25 °C. Bounds do not establish every water / air combination; use the manufacturer operating envelope for selection.
  • R410A; main supply 380 V / 3 phase / 50 Hz. Water-side design pressure 1.0 MPa; projects above 1,000 m require manufacturer review. These are equipment test points, not a destination-climate guarantee.
  • Manufacturer reference: Z0050010-251008; physical PDF page 9.

Key configuration options

  • Nominal heating uses outdoor air −12 / −13.5 °C dry bulb / wet bulb and leaving hot water 41 °C. Standard heating uses air 7 / 6 °C and water leaving 45 °C.
  • The −20 °C dry-bulb test retains its own heating input and COP. The heat-output row is withheld because the printed capacity unit requires manufacturer clarification.
  • AVSL and AVXL have different rated outputs, water-side components and operating envelopes. AVXL or AVXLN figures do not extend the AVSL selection range.

Applications

  • Commercial heating equipment selection against a stated low-ambient design condition.
  • Water-system projects assessing AVSL module duties, flow and installation requirements.

Information for equipment selection

  • RHUA065AVSL or RHUA130AVSL, required quantity and heating / cooling duties.
  • Outdoor design dry bulb / wet bulb, hot-water temperatures and load at the required low-temperature point.
  • Water flow, installation altitude, power supply and destination country.

Application suitability requires a review of the project requirements and selected model.

Project equipment procurement

Delta M&E reviews equipment requirements, manufacturer selections and supply arrangements for each inquiry. Send your BOQ or equipment schedule to discuss the required model, documentation and destination.

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Technical documents

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Related series

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Product reference: Hitachi AVSL Low-Ambient Air-Source Heat Pumps

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