Recommendations for the use of spal evaporator blower modules with brush motors

In order to maximise product life, the power supply to the blower module should be rectified and stabilized with residual RIPPLE values of less than 1% (Max). Higher RIPPLE values will considerably reduce motor lifetime and affect its regular functionality. For applications with higher values, please contact us.

For minimum protection of the blower module, please use a suitable external fuse for every fan to interrupt power supply. This is a protection for the wire harness and for a blocked blower module.

For blower modules without speed control, we have at disposal motors with thermal fuses in the brush-card.

We recommend to use electronic controls to increase the blower module protection level. Please, note that the electronic controls must be adapted to our products. For blower modules used with an electronic speed control (linear, PWM or any other external speed control), please, ensure that the external power supply is cut off in case of any overload conditions such as soft stall (partial blockage), blockage and over temperature.

For blower modules with open motors, it is the customer’s responsibility to verify the environmental conditions for the proper use of the blower module. 

It is the customer’s responsibility to adequately protect the system and the centrifugal blower against overload conditions or accidental rotor blockage. SPAL does not accept any responsibility from direct damage or consequential damage caused by the improper usage or by not adequately protecting the system as indicated above.

It is the customer's responsibility to verify that the selected product and/or the one we suggest from our catalogue suits the technical requirements and working conditions according to customer’s application.


 

Welcome to consult us

We are pleased to assist you in finding the most suitable solutions about evaporator blower for your application. If you need evaporator blower or bus ac condenser fan , be welcome to consult us. We will not disappoint our customers.