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Refrigerant-to-water heat exchanger for VRV systems.

LT Hydrobox (HXYQ48TAVJU) is a VRV indoor unit that uses a refrigerant to water heat exchanger to produce chilled or heated water. The LT Hydrobox delivers water from 41°F to 113°F without the need for a back-up electric heater, for use in underfloor heating and cooling, air handling units and low temperature radiators, making it ideal for both new build and refurbishment projects.
  • 48 MBh capacity
  • Air to water connection to VRV for applications such as underfloor, air handling units, low temperature radiators, etc.
  • Leaving water temperature range down to 41°F in cooling and up to 113°F in heating without an electric heater
  • No gas connection or oil tank needed
  • Space saving contemporary wall hung design
  • Connectable to VRV heat pump.
  • Save time on system design as all water-side components are fully integrated with direct control over leaving water temperature.
  • 208/230V / 1Ph / 60 Hz
Unit of Measure

Power Supply

 N/A 208/230V 60Hz, 1 Phase

Cooling Capacity

 N/A 42650 Btu/h12.5 kW

Heating Capacity

 N/A 48000 Btu/h14.0 kW

Color

 N/A White

Casing Material

 N/A Precoated Sheet Metal

Water Side Heat Exchanger - Type

 N/A Brazed plate

Water Side Heat Exchanger - Quantity

 N/A 1

Water Side Heat Exchanger - Minimum Flow Rate

 N/A 3.96 gpm15 L/min

Water Side Heat Exchanger - Water Volume

 N/A 0.26 gal1 L

Water Side Heat Exchanger - Insulation Material

 N/A Foamed Synthetic Elastomer

Pump Type

 N/A DC Motor

Pump - Number of Speeds

 N/A Inverter Controlled

Pump - Cooling Nominal ESP

 N/A 24.4 ft hd73 kPa

Pump - Heating Nominal ESP

 N/A 21.8 ft hd65 kPa

Pump - Power Input

 N/A 135 W

Expansion Tank - Volume

 N/A 2.64 gal10 L

Expansion Tank - Max Water Pressure

 N/A 43.5 psi3 bar

Expansion Tank - Pre-pressure

 N/A 14.5 psi1 bar

Water Side Components

 N/A Safety valve (43.5 psi), shut-off valves, flow switch, air purge valve, strainer (20 mesh)

Water Flow Rate Range

 N/A 3.4 to 11.9 gpm15 to 45 L/min

Delta T Range

 N/A 5.4 to 14.4 ºF3 to 8 ºC

Control Method

 N/A Inlet/Outlet delta T control

Outlet Temp. Range - Cooling

 N/A 50 to 68 ºF10 to 20 ºC

Outlet Temp. Range - Heating

 N/A 77 to 113 ºF25 to 45 ºC

Ambient Temp. Range - Cooling

 N/A 50 to 109 ºF10 to 43 ºC

Ambient Temp. Range - Heating

 N/A -4 to 75 ºF-20 to 24 ºC

Sound Power Level

 N/A 60 dB

Sound Pressure Level

 N/A 31 dB

Pipe Connections - Liquid

 N/A 3/8 (Flare) in9.5 (Flare) mm

Pipe Connections - Gas

 N/A 5/8 (Flare) in15.9 (Flare) mm

Pipe Connections - Water Side Connection

 N/A BSPP, G 1-1/4 in31.8 mm

Piping Adaptor

 N/A NPTF 1-1/4 in31.8 mm

Refrigerant Type

 N/A R-410A

Refrigerant Control

 N/A Electronic expansion valve

Connectable Outdoor Unit

 N/A VRV IV X Heat Pump

Standard Accessories

 N/A Operation/Installation manual, user interface kit, shut-off valve, user interface cover, bottom plate, top plate, conduit mounting plates, adaptors

Weight

 N/A 44 kg97 lb

Minimum Circuit Amps

 N/A 2.5 A

Maximum Overcurrent Protection

 N/A 15.0 A

Depth

 N/A 13-1/2 in344 mm

Width

 N/A 18-7/8 in480 mm

Height

 N/A 35-1/16 in890 mm

N/A For high efficiency space heating and cooling

  • Air to water connection to VRV for applications such as underfloor, air handling units, low temperature radiators, …
  • Leaving water temperature range from 50 to 113°F (10 to 45°C) without electric heater
  • Super wide operating range for hot/cold water production from -4 to 110°F (-20 to +43°C) ambient outdoor temperature
  • Saves time on system design as all water-side components are fully integrated with direct control over leaving water temperature
  • Space saving contemporary wall hung design
  • No gas connection or oil tank needed
  • Connectable to VRV IV-X heat pump

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