Bradford White UPDX series, Руководство по обслуживанию

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U PDX SE RV I C E PR O C E D U R E V
Blower Temperature Switch Testing
and R eplacement
Blower Temperature Switch
Replacement
WARN I NG
11 5 v olt potential e x posu r e. Use caution
to a v oi d pe r sonal inju ry .
Step 1 . P osition gas c ontrol p ower swit c h to the “ OFF ”
position and unplug heater from wall outlet .
Step 2 . Remove the three screws (Phillips screw driver)
from the control access cover on blower and
remove cover (see photos 21 and 22)
.
22
Step 3 . Locate blower temperature switch (see photo 23) .
Step 4 . Disconnect red and yellow wire leads from switch .
Step 5 . With an appropriate tool such as side cutters, snip the
retaining lug from the blower housing to allow removal of
temperature switch (see photo 24)
.
Step 6 . Remove switch from blower housing .
Step 7 . Install new switch . Be sure switch is properly seated in
mounting area .
Step 8 . Reconnect red and yellows wires to new switch . Wires are
interchangeable with either terminal .
Step 9 . P osition gas c ontrol p ower swit c h to the “ ON ” p osition
and verify proper heater operation .
Step 10 . Replace control access cover from step 2 .
Blower Temperature
Switch Location
23
Snip Retainin g Lu g
from Blower Housin g
24
P a g e 24
U PD X Se r ie s
Gas Control shown in the “OFF”
P osition
2 1
Control Access Cover
Screws
24