HUMIDIFIERS

I. HUMIDIFICATION A. THE PURPOSE 1. ADDS WATER VAPOR TO THE DRY INDOOR AIR DURING COLD AMBIENT DAYS 2. PREVENTS STATIC ELECTRICITY, DRY SINUSES, SORE THROAT AND DRY SKIN B. TYPES OF HUMIDIFIERS 1. EVAPORATIVE : USES A DRUMLIKE PAD OR “MEDIA’ THAT ABSORBS WATER. WARM DUCTED AIR ABSORBS THE WATER VAPOR AND DISTRIBUTES HUMIDITY THROUGHOUT THE CONDITIONED SPACE ›

Drum Type Evaporative

Drum Type Inside View

Drum Media

Drop Down Drum Type

Duct Mounted Evaporative Type

2. ATOMIZING TYPE: a.SPRAYS MIST INTO A SUPPLY DUCT. b. MUST ALWAYS BE INSTALLED ON THE WARM AIR (SUPPLY) SIDE OF A FURNACE INSTALLING ON THE RETURN AIR SIDE WILL CONDENSE THE VAPOR AND RUST THE HEAT EXCHANGER ›

Atomizing Stand Alone

Atomizer Spray Nozzle

3. SELF CONTAINED (TABLE TOP) : a 3. SELF CONTAINED (TABLE TOP) : a.USED IN HYDRONIC APPLICATIONS WHERE THERE IS NO DUCT WORK b. EACH ROOM REQUIRES ITS OWN SMALL UNIT c. OFTEN DISTILLED WATER MUST BE USED WITH THIS TYPE DUE TO MINERAL BUILD UP NOTE: BASEBOARD HYDRONIC HEAT DOES NOT PROVIDE HUMIDITY JUST BECAUSE ITS REFFERED TO AS “WET HEAT” ›

Tabletop Stand Alone

HIGH TEMPERATURE LAMPS BOIL WATER AS THE SUPPLY AIR PASSES BY. 4. INFRARED : HIGH TEMPERATURE LAMPS BOIL WATER AS THE SUPPLY AIR PASSES BY. A. VERY COMMON ON “LIEBERT” COMPUTER ROOM SYSTEMS ›

Infrared in a Liebert Unit

Infrared

heating element to cause steam 5. Steam Humidifiers a. Vapor is made in these machines by using a heating element to cause steam b. This method does not cause minerals to be dispersed in the air c. Tap water can often be used rather than distilled water d. Many will, upon a call for humidification, turn on the blower without a call for heat e. Most costly to operated of all the types because of the electric element current draw ›

Commercial Steam Unit

Residential Steam Humidfier Installed

Inside View of a Steam Humidifier

6. Ultrasonic a. Water mist is created by ultra high frequency sound. b. The water vibrates rapidly in response to the high frequency and vapor is created which is then dispersed with a fan ›

Ultrasonic Industrial Unit