LG Hydro Kit Ductless Systems Heat Only

The LG Hydro Kit is a winner of the 2020 AHR EXPO Innovation Awards in the plumbing category. Designed to be used with LG’s Multi V 5, Multi V Water 5 Heat Pump and Heat Recovery systems, and Multi V S (48kBtu/h ~ 96kBtu/h for ARNH423K3A4 and 96kBtu/h for ARNH763K3A4), the LG High Temperature Hydro Kit is an indoor refrigerant to water heat exchanger, capable of using the rejected heat to provide hot water for applications where hot water is needed, including domestic hot water heating, radiant floor heating, historic radiators and more.

ARNH423K3A4 K3 – Heat Only
ARNH763K3A4 K3 – Heat Only

The Hydro Kit may be used in conjunction with single-phase Multi V S or three-phase Multi V 5 outdoor units, as well as with Multi V Water 5. The Hydro Kit system uses a refrigerant to water heat exchanger to produce heated water.

  • High temperature water heating (K3 Chassis)
  • Water cooling and medium temperature heating (K2 chassis)
  • Domestic water heating
  • Cold surface insulation
  • Factory mounted inlet/outlet water temperature sensors
  • Factory mounted internal flow switch
  • Third party thermostat interface
  • Group control
  • Remote on/off site monitoring capability via the internet

Requires the use of an indirect hot water storage tank.

Field provided and mounted.

Field provided thermostat must be a 208V, 24V or mechanical type. Must be field adjustable heating only or cooling/heating with a manual changeover. Cooling and heating setpoint, deadband, and manual restart functions provided by Hydro Kit Controller are not available with use of a 3rd party thermostat. Cannot be used in conjunction with remote temperature sensor (K2 chassis). Field provided thermostat must be a line voltage (208V) heating only thermostat. Heating setpoint, deadband, and manual restart functions provided by Hydro Kit controller are not available with use of a 3rd party thermostat. Cannot be used in conjunction with remote temperature sensor (K3 chassis)

Wired Remote Group Control Cable Assembly (PZWRCG3) required and sold separately.

Monitoring capability available with LG’s AC Smart Premium or a BMS system integration gateway (sold separately). Requires a field provided LAN/internet connection or BMS system provided by others.

LG Hydro Kit Ductless Systems Heat Only was last modified: May 9th, 2024 by HVAC Expert


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