Air Conditioning

For many years hydronic heating systems were installed without any provision for air conditioning. Two important reasons for not including cooling systems were:

• The location of the floor-mounted radiators and baseboard convectors would cause the heavier cold air to collect along the floor.

• It was impossible to capture and remove the condensation that forms when chilled water circulates through pipes /tubing embedded in floors, ceilings, or walls; or through baseboard convectors and radiators.

Air Conditioning

Until very recently these two technical problems have placed hydronic heating systems at a disadvantage when competing with the forced-warm-air systems. Consequently, hydronic systems have been limited to a much smaller share of the residential heating and cooling market. As homeowners have become more energy con­scious and houses more tightly sealed against air infiltration, cen­tral air conditioning has become a necessity for houses heated by hot-water/hydronic heating systems. The methods used to add air

Air Conditioning

Figure 7-32 Baseboard radiator unit.

Air Conditioning

Drain Fitting

^_________________________________ ^ 41 ^——— Enclosure

^n Screw-On Flange

•<—Wall or Drapes _ . . _ a.

Enclosure for Exterior

Usual Location of condensate drain outlet is thru side wall

Ј. Ceiling

 

Enclosure Front Lip 1/2" Min.

Armaflex insulation

 

Insulation optional depending upon application

 

-, 1" Clearance

 

Air Conditioning

Figure 7-34 Typical valance unit.

 

Air Conditioning

Conditioning to hot-water/hydronic heating systems are covered in Chapter 10, “Central Air Conditioning” in Volume 3.

Posted in Audel HVAC Fundamentals Volume 1 Heating Systems, Furnaces, and Boilers


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