chilled water

Compressor Rebuild | HVAC Heating and Cooling Refrigeration

Compressor Rebuild – This freshly rebuilt reciprocating compressor is destined for a large commercial chiller. Chillers chill water for air conditioning. Compressors compress refrigerant vapor and pump the compressed refrigerant to the condenser to be condensed into a liquid. The compressor provides compression which is an integral part of the refrigeration process. The old compressor was […]

Glycol Feed System for Chiller Condenser Water Loop | Antifreeze Protection

Glycol Feed System for Chiller Condenser Water Loop Glycol is like antifreeze and is used in chilled water piping loops to prevent freezing. Everyone knows when the pipes freeze they also break and start leaking. Having antifreeze in a chilled water loop is important to prevent freezing. So, how do you keep antifreeze in the […]

Actuators for Chilled Water Valve | DDC Commercial Systems

Actuators for Chilled Water Valve – These chilled water actuators control the flow rate for a chilled water system in a data center. There are various sequence of operations for chilled water systems and the sequence of operation is usually always different from one chiller plant to another chiller plant. It depends on the components in […]

Air Handler Water Coil Freeze Stat | Freezing Protection Control

Air Handler Water Coil Freeze Stat Air Handler Water Coil Freeze Stat – The HVAC Air Handler Freeze Stat is a low temperature limit control and it is used mainly in commercial systems in the duct work on economizers or in air handlers just before any coil especially water coils. It is a safety and […]

About Chilled Water Systems | HVAC Hydronics

About Chilled Water Systems | HVAC Hydronics About Chilled Water Systems – Chilled water systems are mainly used in large commercial HVAC air conditioning systems and industrial cooling applications although there are some residential and light commercial HVAC chilled water systems in use. Chilled water systems are popular because they use water as a refrigerant. […]

Chilled Water Pipe Vibration Isolators | HVAC Piping

Chilled Water Pipe Vibration Isolators Chilled Water Pipe Vibration Isolators – Vibration isolators protect the chilled water piping from receiving vibrations transmitted through the piping when the chillers are running. The vibrations can create problems not only for the chilled water piping but also for the buildings structure. The vibration isolators reduce or eliminate the […]

Ammonia Chilled Water System | Commercial HVAC

Ammonia Chilled Water System | Commercial HVAC This chilled water unit is a new ammonia chiller. This unit is also unique in that it has no compressor. Instead it uses the chemical properties of ammonia and heat from natural gas to condense the refrigerant which is ammonia. A chiller provides chilled water to a chilled […]

HVAC Definitions Terms & Acronyms | Heating Cooling

HVAC Definitions Terms & Acronyms This is a comprehensive list of HVAC Acronyms and HVAC Terms. High Performance HVAC is certain there are more terms and acronyms. If you know of something we missed please email us. Thanks! AC – Air Conditioning or Alternating Current ACCA – Air Conditioning Contractors Associations AFUE – Annual Fuel […]

Cooling Tower Fan | Commercial HVAC

This is a HVAC chilled water system cooling tower fan for a large chilled water system. Four large cooling towers for two chiller plants in a data center. Data center cooling systems generally are redundant not only for emergency situations but also for maintenance. The cooling tower fan typically has vibration switches installed in the […]

Belimo Actuators HVAC Automatic Valve Control

Belimo Actuators HVAC Automatic Valve Control Many processes or actions in HVAC are made more efficient by having them automatically controlled by the control system. This enhancement of efficiency is possible by using Belimo actuator valve control. The Belimo automatic HVAC valve control is made possible with DDC and modulating electric Belimo actuators.

Large Condenser Pump for a Chilled Water System

Large Condenser Pump for a Chilled Water System This large HVAC condenser pump serves a new chiller located in a data center. This pump pumps condenser water through the condenser chiller barrel and to a cooling to reject the heat absorbed in the chillers evaporator barrel. The pump works to move the water from the […]

Air Handler Coils | HVAC AHU

Air Handler Coils The air handler coils should be checked for dirt and debris which may have been sucked into the air handler inadvertently. Some air handlers have the filters inside them before the coils. It is a good time to change the filters when making this check. Any dirt or debris on the coil(s) […]

HVAC Piping Valves | Heating and Cooling Hydronics

HVAC Piping Valves | Heating and Cooling Hydronics Triple Duty Valves are three valves in one as the name implies. Triple Duty Valves act as a check valve, balancing valve, and a shut-off valve all in one valve. From the smallest hydronic loops to the largest hydronic loops triple duty valves are very a popular […]

Variable Air Volume Systems – Commercial HVAC

Variable Air Volume Systems – Variable Air Volume (VAV) systems are the best way to zone especially in large buildings. A VAV system with the proper controls and set-up will help the building owner realize large savings in energy usage. There are many VAV systems out there set up in different ways. The most common […]

Chilled Water Storage Tank | Critical Facilities

Chilled Water Storage Tank | Critical Facilities Data centers use redundant systems for back-ups in case of an emergency. An HVAC chilled water storage tank adds an extra layer of redundancy to the process so if the chiller plants crash the chilled water storage tank or tanks will provide a small cushion of time to […]

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