Abstract An apparatus for heating and/or cooling air has an upright housing through which at least two feed riser pipes and one condensate riser pipe pass. This housing has an outlet opening at its top and an inlet opening adjacent its base, this latter being provided with a hinged access door. A drip pan sealing the base of the housing drains into the condensate riser. A heat-exchanger assembly comprising a heat-exchanger coil, a trough below the coil which catches condensate and empties into the drip pan, valve for controlling liquid flow through the coil, a blower for forcing air through the coil, and thermostatic controls for operating the valves is hung in the housing between the openings. Releasable couplings connect the coil through shutoff valves to the riser pipes, and releasable electrical connectors interconnect these valves to the thermostat switch. The blower hangs on the coil assembly on a shelf and this coil assembly is hung on a support rail on the back of the housing, so that the entire device can be quickly and easily disassembled for servicing.
A riser-pipe assembly for an air-treatment apparatus, said assembly comprising: at least two upright riser pipes; a pair of plates flanking said pipies and each formed adjacent each pipe with a respective upright slit in line with the respective pipe and having a predetermined vertical length; and at least four resiliently deformable elongated clamp strips arranged in two pairs bridging said plates and each embracing a respective pipe, each strip having one end engaged in a slit of one plate and another end engaged in the corresponding slit of the other plate, said strips each having a vertical height substantially less than said predetermined height of said slits, whereby said pipes and said strips are vertically displaceable relative to said plates, each of said strips having a generally cylindrically arcuate center region and at each end a generally planar region extending through the respective slit and formed with a bent-over portion preventing withdrawal from said slit, the bent-over portions at each slit extending in opposite directions.
Claim 2
Dependent Claim
166 words
A riser-pipe assembly for an air-treatment apparatus, said assembly comprising: at least two upright riser pipes; a pair of plates flanking said pipies and each formed adjacent each pipe with a respective upright slit in line with the respective pipe and having a predetermined vertical length; and at least four resiliently deformable elongated clamp strips arranged in two pairs bridging said plates and each embracing a respective pipe, each strip having one end engaged in a slit of one plate and another end engaged in the corresponding slit of the other plate, said strips each having a vertical height substantially less than said predetermined height of said slits, whereby said pipes and said strips are vertically displaceable relative to said plates, each of said strips having a generally cylindrically arcuate center region and at each end a generally planar region extending through the respective slit and formed with a bent-over portion preventing withdrawal from said slit, the bent-over portions at each slit extending in opposite directions.
Claim 3
Dependent Claim
14 words
The assembly defined in claim 1 wherein said strips are made of sheet metal.