Harman PF-120 User Manual

Harman® • PF-120 Owner’s Manual_R3 • 2014 -___ • 10/147
3-90-08120c
C. Control Explanation
Status Light
Will be lit in either automatic
or service mode when
pointer is not within off
position band except after
normal shut down.
Combustion Blower Light
Indicates Power to
combustion blower
Feed Motor Light Indicates
Powertothefeedmotor.
Temp dial
The“TempDial”shouldbeinthe“NormalSetting”positionexceptwhenservice
workisbeingdone.Italsoallowsyoutoadjusttheretemperaturewhenthe
“ModeSelector”isin“ServiceMode”usingthescalemarkedfrom1to7.
Note:Duetovariationsintheelectronicsofthecontrolboardandwallcontrol
this is an approximate temperature and may vary +/- 2°
Feed adjuster
Setsthemaximumfeedrate
Test
Runs all motors at full speed
for one minute to check
operation. After one minute
the combustion blower will
go to it’s minimum speed
and remain there. This is to
allow for low draft voltage
adjustment.
Low Fuel Light
Indicates that fuel in the
hopper is low and needs to
be relled. Low FuelLED
stays on for 15seconds
after new fuel covers
sensor.
Igniter Light
Indicates power to the
igniter
Lighting Mode Selector
Switched between Auto and
Manuallighting
Mode Selector
Seeexplanationbelow.
Diagnostic Display Port
RequiresspecialDDMmonitor
supplied exclusively to service
technicians.
Power Light
Indicates power to the
control, and is also used
during “Test” to check the
LowFuelSensoroperation.
LED will blink toindicate
battery back-up shutdown
if applicable.

Harman PF-120 Specifications

General

Brand	Harman
Model	PF-120
Category	Furnace
Language	English