Harman PF-120 Installation Manual

Harman® • PF-120 Installation Manual_R1 • 2014 -___ • 03/1424
3-90-08121i
WHITE SPARE
RED
VIOLET
4" SQUARE JUNCTION BOX
WHITE VIOLET
SKY BLUE
WHITE
WHITE
VIOLET
RED
WHITE
SKY BLUE
WHITE
VIOLET VIOLET
GROUND
WHITE
VIOLET
VIOLET
VIOLET
BLACK
BLACK
RED
WHITE
VIOLET
YELLOW
Tape Off the remaining wires
(BROWN & RED/YELLOW TRACER)
N.C.
N.O.
TO FAN CONTROL
TO FAN MOTOR
120VAC 60 Hz
24 VAC
FROM THE CIRCUIT
BREAKER J-BOX
SPLICE
THE SIZE OF THESE WIRENUTS
WILL NEED TO BE CHANGED TO
ACCEPT THE ADDED WIRES
Double Pole- Double Throw
Fan Control Relay
THE ORIGINAL SKY BLUE / SKY BLUE
SPLICE WILL NEED TO BE SPLIT TO
MAKE THESE NEW CONNECTIONS
DO NOT DISCONNECT THIS SPLICE
A WHITE SPARE IS PROVIDED FOR
A TRANSFORMERHOOK-UP
F. Adding Air Conditioning
AneasyruleofthumbforA/CCFMblowersizeis,.75to1CFMforeachsquarefootofconditionedspace.(standard8’
ceilingheight)
Thisfurnacecanbettedwithanairconditioningcoilmountedinthesupplyairplenum.
HHTisnotresponsibleforsizing,ductplacement,orinterconnections.HoweverwehavemadeaddingA/Ctothefurnace
easierwiththeinformationlistedbelow.
ThereisafactoryinstalledjunctionboxreadytoacceptyourA/Crelay.TheA/Cfancontrolcenterwith40vatransformer
musthaveaDPDTrelay.WhiteRodgers#90-112,part#3-20-38056isavailable.Otherbrandsarealsoacceptableforuse.
Thewiringshouldbedoneasperthewiringdiagrambelow.Thelowvoltagewiringtotheoutsidecondensingunitandthe
coolingthermostatarenotshown.Seecondensingunitdiagramsforthatinformation.
ThisstyleofrelayisusedtolockoutthefeedersystemofthepelletfurnacewhentheA/Cunitiscallingforcooling.Thisis
afail-safeagainstbothunitsoperatingatthesametime.

Harman PF-120 Specifications

General

Brand	Harman
Model	PF-120
Category	Furnace
Language	English