Fläkt Woods
3099 US 03.02
5
Specifications are subject to alteration without notice
PUMA (A–F) Rotary heat exchanger
TECHNICAL HANDBOOK
Design - Description - Accessories
Drive system
The drive system consists of an electric motor (constant
speed or variable speed) with reduction gear, driving the
rotor by means of a jointed V-belt. The V-belt is kept
automatically tensioned by the spring-mounted motor
bracket.
Temperature limit
The heat exchanger is suitable for use at temperatures up
to +165°F.
The temperature in the motor compartment must not
100°F. If the supply or exhaust air temperature
e100°F, see further under Temperature limit on
page 19.
Materials and finish
Frame Sizes 060–240: galvanized sheet metal
Sizes 265–500: rotor support steel beams
primed with anti-corrosion
paint.
Cover panels, inspection panels and purging sector: gal-
vanized sheet metal.
Hub
(one-piece rotor): aluminum
Hub
(sectorized rotor): steel, primed with anti-
corrosion paint.
Rotor material
ALUMINUM ROTORS (A, C and E rotors) are non-
hygroscopic, i.e. they recover only sensible heat, as long
as condensation does not occur.
ALUMINUM ROTORS (B and D rotors) are hygro-
scopic and recover both sensible heat and latent heat
(on changing moisture content).
COMPOSITE ROTORS (F) rotors are hygroscopic, i.e.
they recover both sensible heat and latent heat. The com-
posite material is incombustible and contains no metals,
which means that the material cannot corrode.
The material is treated with silica gel-based substances.
GENERAL SURVEY OF ROTORS
ECONOVENT
Material
Property
Max
temperature -
rotor designation
range, °F
A
Aluminum
Non-hygroscopic
165
B
Aluminum
Hygroscopic
165
C
Edge-reinforced aluminum
Non-hygroscopic
165
D
Edge-reinforced aluminum
Hygroscopic
165
E
Epoxy-coated aluminum
Non-hygroscopic
165
F
Composite
Hygroscopic
165
1)
Heating and cooling energy recovery in air handling systems
- without moisture transfer.
Heating and cooling energy recovery in air handling systems
- with moisture transfer.
Heating and cooling energy recovery in air handling systems
- without moisture transfer in a corrosive environment.
Heating and cooling energy recovery in air handling systems
- with moisture transfer in a corrosive environment.
Heating and cooling energy recovery in air handling systems
- without moisture transfer in corrosive environment.
Heating and cooling energy recovery in air handling systems
- with moisture transfer in corrosive, city, marine and
coastal environments.
Application
1) Available for a max. temp. of 275°F. Get in touch with Munters International Inc.