WDE
30 EN/36B/08.2018 © STULZ SpA – all rights reserved
SL = Sight glass
TR/SC = Regulation device, electronic board
DP/PV = Fan modulation with pressure transducer
4.5. Motors
Compressor
Electric motor positioned inside the compressor. It is mounted on vibration dampers to reduce
vibrations.
Fans
Evaporator fan Condenser fan
Type Radial with backward curved blades Axial
Rotor Coated metal – Aluminium Coated metal
Insulation class B B - F
Protection class I I
Motor protection IP20 – IP42 IP44 – IP54
Evaporator fans in both DC and AC version are EC (electronic commutation) type, except DC fans of
WDE40.
Free cooling damper servomotor
Electric servomotor with built-in travel stop switch and overload protection.
Protection degree: IP54 Protection class: III
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