White Rodgers 50A65-843 User Manual

3

All wiring should be installed according to local and national
electrical codes and ordinances.

The control must be secured to an area that will experience a
minimum of vibration and remain below the maximum ambient
temperature rating of 175°F. The control is approved for mini-
mum ambient temperatures of -40°F.

When mounting the control, any orientation is acceptable.
Choose a location that will not damage, obstruct or place stress
on the control’s terminations, system wiring harness or system
components. After finding a suitable location, drill four (4) 

1

¦

8

”

holes for mounting control. To ensure proper mounting hole
locations, there is a  mounting hole template on page 8 of this
instruction sheet. Detach the page with the template from the
instruction sheet and apply it to the mounting location. When
drilling the holes, take care so that the transformer, wiring
harness or other system components are not damaged. Four (4)
#8 sheet metal screws are provided to complete the installation.

Refer to the wiring diagram and wiring table when connecting
the 50A65 control to other components of the system.

UL approved, 105°C rated 18 gauge, stranded, 

2

¦

64

” thick insula-

tion wire is recommended for all low voltage safety circuit
connections. Refer to 50A65 specification sheet for recom-
mended terminals to mate with those on the control.

UL approved 105°C rated 16 gauge min., stranded, 

4

¦

64

” thick

insulation wire is recommended for all line voltage connections.
Refer to 50A65 specification sheet for recommended terminals
to mate with those on the control.

After installation or replacement, follow appliance manufacturer’s
recommended installation or service instructions to ensure
proper operation.

The 50A65 has only one serviceable part–an automotive type
fuse, which protects the low voltage transformer from damage
if its output is short-circuited. If the fuse has opened up, remove
whatever caused the short circuit and replace the fuse with only
a 3 Amp automotive type fuse. If the fuse is not the cause of the
control’s problem, replace the entire 50A65 control. There are
no other user serviceable parts.

Additional jumper wires are included in this package and
should be used if the original wiring does not reach the control
after mounting. Refer to the furnace wiring diagram for proper
connection of the wires.

Some applications may require connection to terminal E33
located in the middle of the contol cover. If the control being
replaced does not have this connection, it is not needed in the
application and connection to terminal E33 is not required.

Trane application - Jumper wire 151-2906 (provided with
control) must be installed on the furnace from R01 to R02 of the
12-pin connector.