TB3190 - 875 CASSETTE MOTOR AND COWL CHANGE
7th January 2005
875 cassette motor and cowl change
This change affects all CC875 and CWC 875 models from serial number 0960650.
In order to improve the consistency of airflow, the relationship between the fan and cowl has been altered:-
The cowl profile is enhanced, and the colour changed from cream to grey.
The motor windings have been respecified to maintain design airflows.
Capacitors are now 5mfd across the range (CWC 875 previously had 4mfd capacitors).
No changes will be perceived by the installer, but the old motor should not be mixed with the new cowl, and vice versa, otherwise incorrect airflows may result.
To avoid any mismatch, new spare motors will always be sent with a compatible grey cowl and a 5mfd capacitor.
The position with spares is:-
Spares made obsolete
55500518S COWL & GRILLE ASSY } Distributor stocks may be used on units
55500515S MOTOR 230V 1Ph } with white cowls, serial numbers
97200617S MOTOR CWC875 + 4mfd CAPAC } 0960649 and before
04401025S CAPACITOR 5mfd All CC875: CWC 875 with s/n 0960650 and after (grey cowl)
04400547S CAPACITOR 4mfd CWC 875 with s/n 0960649 and before(cream cowl)
New spares created
55500585S MOTOR/CAPAC/COWL/GUARD ALL 875
All CC875 and CWC875; backwards compatible
provided both cowl and motor are replaced.
(The cowl is shipped fitted with a finger guard).
For further information, please contact:
Technical Services Department,
IMI Air Conditioning Limited,
Brighouse, Tel: +44 (0) 1484 405600
West Yorkshire , Fax: +44 (0) 1484 400543
HD6 1QF. Email:firstname.lastname@example.org TB3190 15/10/02