water coil

Variable Air Volume Box with Hot Water Reheat | Commercial HVAC

Variable Air Volume Box with Hot Water Reheat Variable Air Volume Box with Hot Water Reheat – The variable air volume box or VAV box is a commercial solution to adding multiple zones to large buildings. VAV boxes offer zoning solutions so that separate zoning demands or temperature selections can be maintained in different areas of […]

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 […]

VAV Air Handler | HVAC Zoning

 VAV Air Handler | HVAC Zoning VAV Air Handlers are ideal for providing zones in a commercial building. Office space typically has several offices and open areas that need to be conditioned for the comfort of the people working in those areas or offices. By installing VAV boxes and zoning the duct work from those […]

DDC Controlled Chilled Water Actuator | HVAC Automation

DDC Controlled Chilled Water Actuator | HVAC Automation This chilled water actuator is attached to a valve which supplies chilled water to the air handling unit chilled water coil. The actuator modulates the valve based on a set point inside the DDC program. If the program has trim and respond capabilities the set point will […]

Air Handler Components 3 | HVAC Air Handling

Air Handler Components: Hot Water Coil Heat Air Handler Components – Hot water coils inside of air handler units combine a boiler system or a special capacity hot water heater and forced air to provide forced-air heating. The concept is simple and used a lot in commercial and some in residential. Commercial systems almost exclusively […]

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.

MagicAire Air Handler with Hot Water Coil

MagicAire Air Handler with Hot Water Coil This Magic-aire air handler serves part of a large club and uses a DX (direct expansion) coil for cooling and a hot water coil in air handler for heating. Many commercial air handlers are set up in this manner for heating and air conditioning. Hot water for the […]

Air Handling Unit Components 2 | HVAC Forced Air Systems

Air Handling Unit Components: Heat There are many different types and arrangements of heating systems for air handling units and these types of heating systems and arrangements of heating systems vary from commercial to residential. Some air handling units do not have any heat source inside them at all but have remote heat for zoning. […]

Water Heater Appliance Types 2 | HVAC and Plumbing

Water Heater Appliance Types Gas, Electric, Oil, and Tankless water heaters were covered on page one and on page two we cover boilers with domestic water heater coils, heat pump water heaters, and solar water heaters. Please navigate back to page one if you want to peruse gas, oil, electric, or tankless hot water heaters.

Trane Chilled Water Systems – Multi-Zone Air Conditioning Systems

This Trane HVAC chiller serves four different apartments. Chilled water systems offer a great way for multi-zone air conditioning. From small apartment buildings to large commercial buildings chilled water systems can serve multi-zone air conditioning systems. From one air conditioning zone to hundred the only limitation is the size of the chiller. If the air […]

York Air Handling Unit Chilled Water Coil

York Air Handling Unit Chilled Water Coil This coil is a cooling coil in a large commercial York air handling unit. The air handler serves approximately 80 VAV boxes and is responsible for providing cool conditioned air to all the zones the VAV boxes serve based on a set point determined in a DDC program […]

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