Nordyne RL 90+ For Upflow and Downflow Residential Furnaces, WD# . Upflow and Downflow Wiring Diagram

For Upflow and Downflow Residential Furnaces

BLUE BLUE BLUE BLUE

FLAME	BLOWER	SUPPLY AIR		FLAME ROLL-OUT
ROLL-OUT SWITCH	DECK SWITCH	LIMIT SWITCH			SWITCH
(SELECT	(SELECT	(ALL MODELS)			(ALL MODELS)
MODELS ONLY)	MODELS ONLY)
		BLUE	BLUE	ORANGE	ORANGE
	WHITE (NEUTRAL)
	BLACK 120V
	GROUND
	ROOM THERMOSTAT

VENT

SAFETY SWITCH

(SELECT

MODELS ONLY)

WHITE

GREEN

PRESSURE	VENT
SWITCH	PRESSURE SWITCH
	(93+ MODELS ONLY)

BLACK

BLOWER DOOR

SWITCH

			R
			Y
			G
			W
	AIR CONDITIONER
	CONDENSING UNIT
				C
				Y
FLAME SENSOR
					RED
						YELLOW
						BROWN
		GAS
		VALVE
							IGNITOR
Legend											BLACK
											BLACK
Field Wiring							R		C BLACK
Factory Wiring:								INDUCER
Low Voltage
											BLACK
High Voltage									STATUS
FAULT CONDITION									RED
									LIGHT
Power On										ON
Limit Circuit Open or External Load On "W"									1 FLASH
Pressure Switch is Open with Inducer On									2 FLASHES
Pressure Switch is Closed with Inducer Off									3 FLASHES
Ignition Failure (Check Ground)									4 FLASHES
115 VAC & Neutral Reversed or no Ground									5 FLASHES
False Flame or Gas Valve Relay Shorted									Continuous
Power Off										OFF
									FLAME
FAULT CONDITION									YELLOW
									LIGHT
Low Flame Sensor Signal									Continuous
									Flash
Flame Present										ON

TRANSFORMER
WHITE W/ BLK STRIPES	WHITE	VENT SAFETY SWITCH
		(SELECT MODELS ONLY)
24 V	120 V
BLK W/ WHITE STRIPES	BLACK
180 120 90 60	BLACK	Refer to the Installation
		Instructions provided
		with the furnace for the
		proper heating and
		cooling speeds for your
		application.

		3 OR 4 SPEED MOTOR
		C
				H
				MH
		L	ML
	WHITE	RED	ORANGE	BLUE	BLACK
RED	1
ORANGE	2
BLUE	3
BLACK	4
	5
WHITE	6
	MOTOR
	PLUG

These wires are

not present

on all models

If any of the original wire as supplied with the furnace must be replaced, it must be replaced with wiring material having a temperature rating of at least 105 C.

WD# 710355-0

Figure 29. Upflow and Downflow Wiring Diagram

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