Trane Trane, VAV-SVN01E-EN manual Wiring Diagrams, Fan-Powered Low-HeightUnits

Wiring

Diagrams

Figure 25 – Fan-Powered Low-Height Units

Fan-Powered Low-Height Control Box with Electronic or DDC Controls

		CAPACITOR	FAN
		3.
			MOTOR 2
		FAN	(SIZE 10 ONLY)
	3.
		MOTOR
5.	CAPACITOR	BR
LINE VOLTAGE
OR FROM HEATER TERMINAL		BR

Fan-Powered Low-Height Control Box with Pneumatic Controls

Duct Pressure Switch Option

}			BR
L1	N		BR	W
			W	BK
				BK
		GREEN
		GROUND	2.
		SCREW	MOTOR
			SPEED
			CONTROL
		DISCONNECT
BK	W	SWITCH	W
		2.		W

TERMINAL

LINE VOLTAGE		5.	CAPACITOR
OR FROM HEATER TERMINAL
	L1 N		BR
		GREEN	2.
		GROUND	MOTOR
		SCREW
			SPEED
BK	W
			CONTROL

	CAPACITOR		FAN
FAN	3.		MOTOR 2
		(SIZE 10 ONLY)
MOTOR
3.
	BR	BR
			W
W			BK
BR

BK

BLOCK

W W

4. BK W

FUSE

BK

BK

2 4 MOTOR RELAY

BR

1 24V 3

R

	W
BR	W
W or BR	24V	Y
BK		BL
			BR
				R
TRANSFORMER
	FAN CONTROL BOX

				2.	TERMINAL
				DISCONNECT	BLOCK
			BK	W SWITCH	BR
							W
							W
			4.				BK
	TO VAV		FUSE	BK			BK
CONTROLLER			6.	BK	2	4
}			NO	24V			BL
		BL		BL	Y
			C		1 24V	3
				TRANSFORMER
			NC

DUCT

MOTOR

PRESSURE

RELAY

SWITCH

FAN CONTROL BOX

WARNING

HAZARDOUS VOLTAGE!

DISCONNECT, LOCK OUT AND TAG

ALL ELECTRIC POWER INCLUDING

REMOTE DISCONNECTS BEFORE

SERVICING.

DISCHARGE MOTOR START/RUN

CAPACITORS BEFORE SERVICING.

FAILURE TO DISCONNECT POWER

BEFORE SERVICING CAN CAUSE

SEVERE PERSONAL INJURY OR DEATH.

CAUTION

USE COPPER CONDUCTORS ONLY!

UNIT TERMINALS ARE NOT DESIGNED

TO ACCEPT OTHER TYPES OF

CONDUCTORS.

FAILURE TO DO SO MAY CAUSE

DAMAGE TO THE EQUIPMENT.

DUCT PRESSURE MAIN CONTROL

6.

BK NO		NO
C	BK	C
NC		NC

Fan-Powered Low-Height Control Box with Pneumatic Controls

								FAN
								MOTOR 2
					FAN		3.	(SIZE 10 ONLY)
					MOTOR
LINE VOLTAGE		5.	BR	3.			BR
OR FROM HEATER TERMINAL
}						BK	CAPACITOR	W
				BR
L1	N							BK
					W
			CAPACITOR
		GREEN
		GROUND	MOTOR
		SCREW	SPEED
			CONTROL
			2.
BK	W			W W
			TERMINAL
			BLOCK
		2.
BK		DISCONNECT			W
	W	SWITCH	BR	W
4.

P.E. SWITCH-1	P.E. SWITCH-2
	BK

NOTES:

FUSE

BK

BK

1.FACTORY INSTALLED BY OTHERS

OPTIONAL OR ALTERNATE CIRCUITRY

2.DISCONNECT SWITCH, FUSE, & SCR ARE LOCATED EXTERNAL TO CONTROL BOX.

3.CAPACITOR IS INSTALLED ON FAN HOUSING.

4.FUSE IS OPTIONAL.

NO

BK

C

NC

P.E. SWITCH

FAN CONTROL BOX

5.DETERMINED BY MOTOR VOLTAGE ON ORDER. VOLTAGE FOUND ON UNIT NAMEPLATE.

6.FOR SERIES FAN POWERED TERMINAL UNITS ONLY.

VAV-SVN01E-EN 53