Water Cooled VRV (RWEYQ) - For Geothermal or Boiler/Tower Applications

The VRV IV-W Series offers an energy saving alternative to traditional centralized equipment. Its remarkable compact and light weight structure makes installation of VRV technology in large buildings possible. At only 330 lbs. and less than 40” high, the VRV IV-W Series can take a ride up the elevator to be installed in a machine room. Offering state of the art comfort for hotels, offices and large commercial applications, the engineer solution tool box just got bigger. The VRV system keeps running costs at an absolute minimum by controlling each zone individually and being able to shut down completely in unoccupied areas.

VRV IV-W Series Systems are equivalent to 4-Pipe chilled water systems, but also offer a viable alternative to WSHP Solutions. Each connected Indoor Unit can provide heating and cooling independently to suit zone requirements making these systems suitable for both open plan, or cellular applications with different operation requirements.

Two Stage Heat (Energy) Recovery is available between indoor units on the same VRV system and then across all the systems connected to a common water loop. This has a dramatic impact on Power Consumption and helps improves energy efficiency.

The VRV IV-W Series allows for extensive refrigerant piping, enabling several spaces to be cooled by a single refrigerant circuit. The VRV IV-W Series uses the same Daikin inverter technology that is used with air-cooled systems, but extends the application of VRV products by utilizing the same quality family of VRV indoor units and controls options.

Water-Side Infrastructure & Components

• A water loop system is routed around the building, either vertically or horizontally. This can be either plastic or steel pipe work.
• Heat Injection (Boilers) and Rejection (Cooling Tower or Dry Coolers) are required to ensure that the water loop stays between the required design conditions of 67 and 95 ° F.
• VRV IV-W Series condensers are connected to the water loop and the connecting refrigerant circuit serves indoor units the same as any Air cooled VRV system.
• The following Water Side components are required:
  • Strainer (Mandatory – Field Supplied)
  • Flow Switch or Differential Pressure Switch (Essential)
  • Thermostat (For Water Temperature)
  • Circulation Pumps
  • Adjustable Flange
• Operation Range of Water Volume is 13.2 ~ 39.5 gpm.  The optimum water volume is 16 gpm or more.
• The Operation range for Inlet Water Temp is 50 ~ 113 F. The Optimum Water Temp Range is 67 ~ 95 F.
• The Geothermal Operation range for Inlet Water Temp is 14 ~ 95 F during heating operation, and 27 ~ 113 F during

Standard VRV IV-W Specifications