Commercial Indoor Pool Heaters and Dehumidifiers

Proper dehumidification of indoor pool enclosures is a must for comfort and maintenance of the pool structure and building. EoTech pool heating and dehumidification systems make great economic sense for comfortable indoor pools.

Proper Dehumidification cuts down on building damage.
When humidity levels in an indoor pool are not properly maintained, mold and mildew flourish, ceiling tiles and walls become saturated, metal trim on windows and doors corrodes and the building can quickly becomes a health hazard. With proper humidity control there is less damage to the building and less need for repairs to maintain the structure.

Comfort Increases Pool Usage:

Comfort is a big factor for indoor pools - high moisture content in the air is difficult to breathe and chilly water is uncomfortable. EoTech pool heating and dehumidification systems control humidity and heat the pool - keeping the pool and its environment comfortable and increasing the pool use.

For many businesses a comfortable indoor pool environment is a must, for others it can be a competitive advantage:

• Hotel, motel and resort pools can be an important factor for families and business travelers when choosing their lodging. Having a comfortable pool will give customers a reason to return.
• Hospitals or Rehabilitation Centers with therapy pools need comfortable water temperatures and pleasant pool environment to enhance therapy completion and results.
• Schools and universities with pools often have swimming and diving teams who use the pool continuously. Having a comfortable environment will enhance the athlete's workouts and increase attendance at meets.
• Health clubs with pools will find that a comfortable, well maintained pool can help maintain customers and increase memberships.
• Retirement communities and community pools often use their pools for water classes and recreational swimming for older participants. Patrons may not use a pool that is uncomfortable or might contribute to illness.

PhD Series - Commercial Pool heater and Dehumidifier

E-Tech Residential PhD systems are integrated packages which supply 100% of the heat required to heat a pool with savings of 25-50% over conventional natural gas or electric systems.

How the PhD Works:

The PhD Pool heating Dehumidifier recovers the energy lost by the pool to the atmosphere through evaporation. This produces cool, dehumidified air which is returned to the pool environment, stabilizing the humidity. The recovered energy is returned to the pool water to maintain the desired temperature. Excess energy is used to reheat the air that has been cooled in the dehumidifying process to help maintain the interior temperature of the pool enclosure. The PhD system reduces the need for fresh air ventilation to control humidity and provides additional energy savings since less fresh air is required to be heated during winter operation. They are designed to keep relative humidity at a comfortable 55% to 60%.

The EoTech design sizes the compressor to provide 100% of the heat needed to maintain a pool or spa at the desired temperature and reheat the cool return air to the original temperature when pool heating is required. This provides maximum comfort and economy. The PhD is not designed to replace the heat lost through walls, roofs, windows or air filtration. Additional heat can be supplied by an auxiliary heat source if needed.

Typical Applications

E-Tech Commercial PhD models typically control indoor pool environments in:

• Hotels, motels and resorts
• Hospitals and healthcare facilities
• Therapy facilities
• Health clubs
• Community recreational buildings
• Retirement communities
• Condominiums, apartments or high rise buildings.

Commercial PhD models:

E-Tech offers two lines of PhD equipment - the PhD S series and the PhD H series.

The PhD S (Standard) series provides excellent cost savings and environmental control.

The PhD H (High Efficiency) series include a unique heat pipe heat exchanger which recovers a large part of the heat from the exhaust air to heat the incoming fresh air - providing additional savings. The heat pipe heat exchanger increases the dehumidifying capacity of a PhD system by about 20-25% over a conventional system requiring the same electric input.

Selecting the Proper E-Tech Pool Heating/Dehumidification System for your pool:

The type of PhD selected would depend on the size of the pool, building size, location of the pool, activity levels, needs of the indoor environment, and the climate of the pool location. The proper size will depend heavily on the pool water temperature and air temperature desired (the higher the water and air temperatures, the larger the size of the unit required). Selection of the right system is important to get the desired results. AERS can assist you with selecting a PhD system, contact us for assistance.

E-Tech produces. The performance of each model at rated conditions is:

Optional Features

PhD systems can be customized for the needs of individual applications by adding the following options to Increase Flexibility of PhD System:

Economizer Module

The economizer module allows the use of outside air for dehumidification when it is more economical. It is attached to the air inlet of the unit and includes a return air blower and connections to the exhaust and fresh air ducts. Each economizer is provided with three motorized dampers. The use of the Economizer is determined by a dew point controller.

Remote A/C Ready

This option provides on demand cooling. The unit is provided with refrigerant connections for field piping to an outdoor air cooled condenser. The condenser must be ordered separately, or can be supplied by others.

Outdoor Air Cooled Condenser

These are the optional outdoor air cooled condenser for use with the Remote A/C ready option to provide on demand cooling. It consists of an air condenser and with an axial fan.

Built-In Water Cooled Condenser

The PhD can be provided with an integrated water cooled condenser to provide on demand cooling when a cooling water or Geo loop is available for that purpose. Condenser water pumps are not included.

Custom Air Flow Options

Each PhD can be supplied with customized air flow and can be designed to meet the external static pressure (ESP) required by the application.

Auxiliary Heating

Each PhD can be provided with an auxiliary heating air coil for which to use hot water supplied by another source, or electric heaters can be added to the discharge ductwork of the installation.

Room Thermostat

A thermostat to set desired enclosure temperature can be included in each unit.

Room Humidistat

A humidistat to set desired enclosure humidity level can be included in each unit.