Chilled water system is using refrigerant to deep cooling water & use water to cool the air through air side machines (FCU, AHU). It is not using refrigerant direct to cool air like other DX systems.
Types
Air Cooled – Chilled Water System
Water Cooled – Chilled Water System
Components of System
Chillers
Pumps
Cooling Tower (In Case Water Cooled)
Chilled Water Piping
Accessories (Air Separator, Chemical Dosing)
Where to use:
For High Capacities 500 TR & Higher
For Variable Heat Load
For Industrial Areas
For Big Commercial buildings
For High Rise Buildings
Direct Expansion DX
Direct Expansion DX
DX system is using refrigeration cycle to cool the air & push the air direct to air-conditioned areas. It uses 1 outdoor unit connected by copper piping to 1 indoor unit.
Types
Split Type
Package Type
Split type
has various shapes of ac machines, for example:
Hi.Wall Split
Free stand
Cassette
Concealed (FCU)
Central Split
Package Unit
has various shapes of ac machines, for example:
Window
Roof Top & Horizontal – Package AC Unit
Dx Air Handling Unit (AHU)
Components of System:
Compressor
Expansion Valve
Evaporator
Condenser
Where to use
For Low & Medium Capacities 0-500 TR
For separate areas
For residential & commercial small & medium building
For Low Rise Buildings
VRF SYSTEM
VRF SYSTEM
VRV system is like DX system but as big as chilled water system. It has just 1 combination of outdoor could supply & feed refrigerant to multiple indoor units or AHUs. It uses copper piping network to connect this just 1 outdoor or its combination to multiple indoor units with various shapes
Types
It has only 1 type air cooled VRV outdoors connected to multiple indoor or AHUs
Components of System:
Outdoor Condensing units
Piping network
Y-Branches
Control Loops
Indoor units
Where to use
For High Capacities 500 TR & Higher
For LEED Building
For Low Power Consumption
For Variable Heat Load
For Industrial Areas
For Big Commercial buildings
For Very High-Rise Buildings
About Us
Salem Balhamer HVAC and Maintenance Contracting Company is recognized for its extensive experience in the field of general and maintenance contracting.