3
MOUNTING AND WIRING
Do not use on circuits exceeding specified volt-
age. Higher voltage will damage control and
could cause shock or fire hazard.
To prevent electrical shock and/or equipment
damage, disconnect electric power to system at
main fuse or circuit breaker box until installation
is complete.
Failure to earth ground the appliance or revers-
ing the neutral and hot wire connection to the line
can cause shock hazard.
Shut off main gas to heating system until instal-
lation is complete.
Route and secure all wiring as far from flame
as practical to prevent fire and/or equipment
damage.
INSTALLATION
WARNING
!
CAUTION
!
Replace 50A62 control as a unit - no user serviceable
parts.
All wiring should be installed according to local and
national electrical codes and ordinances.
The 50A62 control may be mounted only in a control box
of a Lennox furnace.
The control must be secured to an area that will experi-
ence a minimum of vibration and remain below the maxi-
mum ambient temperature rating of 175
°
F. The control is
approved for minimum ambient temperatures of -40
°
F.
Any orientation is acceptable.
Refer to the wiring diagram and wiring table when con-
necting the 50A62 control to other components of the
system.
UL approved, 105
°
C rated 18 gauge, stranded,
2
⁄
64
” thick
insulation wire is recommended for all low voltage safety
circuit connections. Refer to 50A62 specification sheet
for recommended 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 50A62 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.
NOTE
Summary of Contents for 50A62-820
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