Water-Cooled
Systems

Features

Geothermal Operation and Advantages VRV T-Series can use the Earth as a Heat Sink, eliminating the need for another heat source. It uses the clean and sustainable energy stored in the earth to heat and cool buildings, which makes the VRV a more environmentally friendly solution.

Indoor installation makes unit invisible from the outside

Because the system is water cooled, outside air temperature does not affect system capacity. Condensing units are installed inside the building, which enhances design flexibility and makes it easier to adapt to different building types.

• Great solution for sound sensitive environments as there is no noise mitigation outside to disturb building neighbors
• Superior efficiency, even in the most extreme outside conditions, especially in geothermal operation

Extended Water Temperature Operation Range Condenser water inlet temperature can be as low as 23°F in cooling and 14°F heating. Please note that glycol usage is required when EWT is below 50°F. Please refer to Engineering Manual for further details.

2-Stage Heat (Energy) Recovery

2-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 improve energy efficiency.

Variable Water Flow Control  Condensing unit can control water control device such as an inverter pump or modulating valve via 0-10V signal based on capacity requirement. This increases the total system efficiency by reducing the water flow when possible.

Space Saving – Compact Design & Stacked Configurations

Compact casing (Height: 38-9/16” Width: 30-1/8” Depth: 22-1/16”) allows for stacking of the units to maximize space saving. Stacked systems can easily fit in mechanical rooms with 7 ft. (dual stack) or 11 ft. (triple stack) ceilings thanks to the
reduced unit height.

Heat Rejection Cancellation Technology  Engineered with Patented heat rejection cancellation technology to eliminate heataddition to mechanical rooms* * This function needs to be enabled through field settings.

Easy Installation and Servicing

Developed for easy installation and servicing: options to choose between top or front connection for refrigerant piping and drop-down switch box for easy access to components.

VRT mode control selection to match user preferences

This chart reflects the operation trend of a VRV system when in normal operation and under VRT control. Actual energy savings through  VRT vary based on the building location, load characteristics, occupancy and system usage conditions.

Simplified Commissioning and Servicing

• New configurator software designed to simplify the commissioning and maintenance of the system.
• 3-digit 7-segment digital display on the unit for improved and faster configuration, commissioning, and troubleshooting.
  
  

Technology

Geothermal Application

The VRV water cooled system can connect to a geothermal water loop as standard, which makes it one of the most energy-efficient air-conditioning systems available in the market.

Underground temperatures remain relatively constant all year round. They are warmer than the air above it during the winter and cooler than the air above it during the summer.VRV Water Cooled systems are capable of utilizing this constant temperature by exchanging heat with the earth through a ground heat exchanger.

This helps reduce the load on the compressor and provides substantial energy savings.

Why select a VRV Water Cooled System?

• The efficiency and capacity of air-cooled systems reduce at extreme ambient conditions, causing systems to be oversized and increasing initial cost. Water cooled VRV operation does not get affected by outside air temperatures.
• Geothermal energy can be used to heat and cool your building, which can help you gain more LEED points.
• Extreme piping lengths in applications such as high-rise buildings cause capacity reductions. Positioning water cooled condensing units floor-by-floor reduces the capacity reduction and improves the system efficiency.
• Water cooled VRV systems typically require less base refrigerant charge than that of a similar air cooled VRV system and thus can be used in applications with limited allowable refrigerant within the building.
• Condensing units can be linked to existing water piping and utilize the existing heat source to reduce initial costs.
• No external operation sound produced by condensing units to disturb your building neighbors since water cooled VRV systems are installed indoors only.