background image

4

17. 08. 17. Leaflet Number 671392

Installation and Maintenance

Twin Squif In-line Fans

nuaire.co.uk 

029 2085 8400

8.0 SETTING TO WORK

Ensure that all mechanical and electrical connections and fixings are 
secure and that inlet and outlet ductwork is free of any obstruction or 
debris.

Briefly switch the fan on/off to ascertain correct direction of impeller 
rotation, compare with the rotational label fitted and correct if 
necessary.

To change the direction of rotation on the 3 phase motor, inter-change 
any 2 incoming supply phases at the motor terminal box.

Complete the test by running the fan for approximately 15 minutes, 
taking and comparing voltage, full load and starting currents with the 
fan rating label. Monitor flexible connections to ensure no leakage and 
AV mounts for correct alignment.

9.0 MAINTENANCE

The first maintenance should be carried out three months after 
commissioning and thereafter at twelve monthly intervals. These 
intervals may need to be shortened if the unit is operating in adverse 
environmental conditions, or in heavily polluted air.

9.1 Maintenance Check List 
 
 
 
 
 
 
 
 
 
 
 
 

10.0 LUBRICATION

Motors are fitted with sealed for life bearings and do not require any 
lubrication.

11.0 GENERAL CLEANING AND INSPECTION

Clean and inspect the exterior of the fan unit and associated controls 
etc. Remove the access panel from the fan unit. Inspect and, if 
necessary, clean the fan impeller and motor assemblies and the interior 
of the case.

Check all parts for security and condition. Check that the impeller 
rotates freely and the inlet cone and impeller are concentric with a 
running clearance.

 
 
 
 

12.0 REPLACEMENT OF PARTS

Should any component need replacing Nuaire keep extensive stocks 
for quick delivery. Ensure that the unit is electrically isolated, before 
carrying out any work.

When ordering spare parts, please quote the serial number of the unit 
and the ARC number of the purchase, if possible (this information will 
be available on the fan label). 

13.0 WARRANTY

Twin Squif has a 3 year warranty and Ecosmart Twin Squif has a 5 
year warranty. The warranty starts from the day of delivery and 
includes parts and labour for the first year, the remaining years covers 
replacement parts only.

This warranty is void if the equipment is modified without 
authorisation, is incorrectly applied, misused, disassembled, or not 
installed, commissioned and maintained in accordance with the details 
contained in this manual and general good practice.

The product warranty applies to the UK mainland and in accordance 
with Clause 14 of our Conditions of Sale. Customers purchasing from 
outside of the UK should contact Nuaire International Sales office for 
further details.

14.0 AFTER SALES ENQUIRIES

For technical assistance or further product information, please contact 
the After Sales Department.

Telephone 02920 858 400 

[email protected]

ITEM

TICK

Check that safety grilles are secure and free of obstruction.

Inspect all bolts, fixings and electrical terminals for 
security.
Check motor for undue wear, signs of overheating and 
apply winding insulation and continuity tests.
Remove all dust and dirt from impellers; be especially 
careful not to disturb balance weights.
Generally clean.

Check resilient mounts (where applicable) and replace any 
that have any wear or deterioration.

Reviews: