Johnson's Air Conditioning

Humidity Sources - Infiltration into the conditioned space

Infiltration Sources - Open Doors and Windows

Infiltration Sources - Closed Doors and Windows

Infiltration Sources - Attics and Cavities

Infiltration Sources - Fixtures in ceilings below attics

Leaking Ductwork in a Vented Attic

Humidistat used with Dehumidification Equipment

Stand-Alone Dehumidifiers

Stand-Alone Dehumidifier substituting for AC operation

Stand-Alone Dehumidifier supplementing AC Operation

Advanced Thermostat / Humidity Control

Humidistat used to control Air Conditioning Equipment

Humidistat Control with Central Air Conditioning Equipment

Humidistat use with AC Thermostats

Thermostat / Humidistat setpoints command system operation together

Indoor Temperature and Relative Humidity ( RH ) Limitations

When System cycles off commanded by Thermostat Temperature Set Point

When System cycles off commanded by Humidistat RH Set Point

Temperature Control for human comfort

Humidistats used to control Unoccupied Spaces

Humidity Removal Enhancement Strategies

Multi Stage and 2 Stage Air Conditioning Strategies

Variable Speed Airhandler Strategies

Variable Speed Airhandler Adjustments

Variable Speed Enhancement Settings

Humidity Removal using Multi-Stage AC Equipment

Air Conditioning System Humidity Control Limitations

Conventional Single Stage Air Conditioning -sized for peak Heat Load

Multi Stage and 2 Stage Air Conditioning - Adjusting for Heat Load

Automatic Staging of Air Conditioning Capacity

Multi-Stage Efficiency Advantages

Humidity Control Seasonal & Occupancy Changes

Humidity Control at Peak Load Conditions

Humidity Control at Partial Load Conditions

Humidity Control at Night

Humidity Control during mild weather

Humidity Control in unoccupied spaces

Humidity Control with 2 Stage Equipment

Humidity Control at No Load Conditions

Humidity Control with Dehumidifiers

Humidity Control using Air Conditioning Equipment

Coincidental Humidity Control

AC Operation Requires Heat

Over Cooling with Air Conditioning

Matching Heat Load vs Tonnage

Under Sized Air Conditioning Systems

Over Sized Air Conditioning Systems