Section BXM‐161‐7HE‐20A
030‐101765 Rev. B
R
17
1311IARB
Figure 23. Replacing the Heat Exchanger
To remove the heat
exchanger, loosen
the Allen screws
on the inside wall
of the cabinet door.
the FAN A Euro connecor
in the controller card
(2 wires for each fan,
join same-colored wires together
from each fan prior to insertion
into connector in controller card)
Upper Fan
Lower Fan
Both fans are wired to
Cover removed in
visual clarity of fan
DO NOT REMOVE
THE COVER !!
locations only
this figure for
5.3
Replacing the Door Sensor Switch
The door alarm sensor switch cannot be field repaired. Should
a problem be suspected with the door switch, remove the switch
and return it to Westell for service, then replace it. To remove
and replace the door alarm switch, proceed with the following
instructions.
‐ WIRE AND BLOCK DISCONNECTION NOTE ‐
The Euro‐connector blocks used for making DC distribution and
alarm wire connections facilitate a simple group disconnection of
all alarm and dc distribution wire connections; there's no need to
unscrew each wire. Simply remove the entire block by pulling the
blocks away from the panel.
‐ CAUTION ‐
To avoid electrical shock, turn off any DC or AC power feeds
to the controller before beginning this procedure.
1.
Open the cabinet.
Open the cabinet door if accessing the
door switch from the front; if accessing the switch from the
rear, remove the rear access panel.
2.
Disconnect switch power.
Disconnect the door alarm
switch power by removing the door alarm Euro connector
at the bottom of the controller card.
3.
Remove door switch.
Remove the door alarm switch with
a flat screwdriver by snapping/prying it out of the bracket
which houses it.
4.
Disconnect wires at door switch.
Carefully disconnect
each wire from the switch, noting which terminal was used
and labelling the color or polarity of each connector, for
easy re‐connection to the new door switch.
5.
Wire then install the new switch into the mounting bracket.
Connect the wires into their proper positions in the new
switch.
Insert the new door sensor switch into its mount
ing bracket from the rear side so the door sensor button
protrudes through the hole for it at the front of the mount
ing bracket; press or snap it into place.
6.
Test.
Verify that the door alarm is not present when instal
lation is complete and power is re‐applied.
6.
CUSTOMER & TECHNICAL SERVICES
6.1
Customer Service & Technical Assistance
If technical or customer assistance is required, contact Westell
by calling or using one of the following options:
Voice: (800) 377‐8766
email:
For additional information about Westell, visit the Westell
World Wide Web site at http://
www.Westell.com.
6.2
Part Numbers
This equipment is identified by a product number
(A90‐BXM1619‐7HE), which consists of three parts: the issue
letter of the equipment (A), the assembly type (90), and the spe
cific model number (BXM1619‐7HE). Each time a change is
made to the product which changes the form, fit, or function of
the product, the issue letter is incremented or advanced by one.
Be sure to indicate the issue level as well as the model number
when making inquiries about the equipment.
7.
WARRANTY & RETURNS
7.1
Warranty
Westell warrants this product to be free of defects at the time of
shipment. Westell also warrants this product to be fully function
al for the time period specified by the terms and conditions
governing the sale of the product. Any attempt to repair or
modify the equipment by anyone other than an authorized West
ell representative will void the warranty.
7.2
Return and Replacement Policy
Westell will repair or replace any defective Westell equipment
without cost during the warranty period if the unit is defective
for any reason other than abuse, improper use, or improper
installation. Before returning the defective equipment, first re
quest a Return Material Authorization (RMA) number from
Westell. Once an RMA number is obtained, return the defective
unit, freight prepaid, and a brief problem description to:
Voice: (630) 375‐4457
email: [email protected]
Replacements will be shipped in the fastest manner consistent
with the urgency of the situation. Westell will continue to repair
or replace faulty equipment beyond the warranty period for a
nominal charge. Contact Westell for details.
