Addison UHAS 150, Installation, Operation & Service Manual

Page: 63 / 74

SECTION 15: R
EPLACEMENT
P
ARTS
55 of 59
15.13.1 Fan Removal and Replacement
WARNING
Severe Injury Hazard
Turn off gas and electrical supply before
service.
Fan can start automatically at any time.
Failure to follow these instructions can
result in severe injury or product damage.
Description Part Number Qty.
Axial Fan UHA[T][X][S] 150 - 175 90710417 1
Axial Fan UHA[T][X][S] 200 - 250 90710417 1
Axial Fan UHA[X][S] 300 - 400 90710416 2
15.13.2 To Replace the Fan Assembly
To replace the fan assembly, reverse the procedure
shown above.
• Check that the fan blades are free to rotate
before turning on the power to the fan.
• Strictly comply with the color code of the fan
wires to ensure correct operation. See Page 25,
Section 10.6 or Page 27, Section 10.8 wiring
diagram.
• Use only genuine replacement parts sold and
supplied by Addison.
15.14 Limit Switches
15.14.1 Removal and Replacement
1. Remove the electrical connections to the
switch.
2. Unscrew the two screws securing the switch.
3. Fit a new switch with two screws.
4. Reconnect the electrical connections and test
operation.