Fläkt Woods
3099 US 03.02
6
Specifications are subject to alteration without notice
PUMA (A–F) Rotary heat exchanger
TECHNICAL HANDBOOK
Design - Description - Accessories
Accessories
PUMZ-17 Duct connection frames
Slip joint connection, made of galvanized sheet metal and
fitted to the heat exchanger at the factory.
PUMZ-20 Speed detector
Used for continuous monitoring of the rotor speed, with
automatic alarm if the rotor should stop when heat recov-
ery is needed.
An alarm relay and sensor unit are needed for a constant-
speed exchanger. Only the sensor unit is needed for a
variable-speed exchanger.
PUMZ-21 Differential thermostat
In cooling energy recovery, used for switching the heat
exchanger to maximum speed when the outdoor temper-
ature is higher than the exhaust air temperature. Two sen-
sors are included for fitting in the outdoor air and
exhaust air ducts upstream of the heat exchanger.
PUMZ-27 Cleaning equipment
For automatic purging of the air passages in the rotor.
With compressed air nozzle which is moved by means of
a pneumatically actuated cylinder in a radial direction
along the face of the rotor. Nozzle, cylinder and control
unit are included.
For assistance in selecting the variant and locating the
equipment, please get in touch with Munters
International Inc. representative.
PUMZ-28 Condensate tray
For collecting and disposal of the condensate from the
rotor.