Proven Draft Switch | Energy Tech Laboratories RSIB 300-500 manual

3002503 11.06

4.3 Wiring Diagram – RSIB 350-500

Power Venter and motor specifications can be found under “Sec. 2.1 Dimensions and Capacities”. The power venter

is equipped with a variable speed motor. Fig. 9 below shows a typical wiring diagram utilizing a Variable Frequency Drive (adjusting the speed is possible). If it is not a requirement that the speed can be adjusted, a motor starter should be installed in lieu of the VFD, if required by local codes.

Fig. 9

PROVEN DRAFT

SWITCH

24 VAC

COM HOT

TR TH

24V GAS VALVE

NOTES:

VARIABLE FREQUENCY

DRIVE (typical)

L1 L2 L3 U V W

POWER SUPPLY 200-240/3/60 or 440-480/3/60

FAN

MOTOR

BLACK BLACK RED

GREEN

WEATHERPROOF BOX

All wiring must be in flexible or rigid metal conduit

1THE DISCONNECT MEANS AND CIRCUIT PROTECTION ARE TO BE PROVIDED BY THE INSTALLER OF THIS DEVICE

LEGEND:

24 VAC

200-240 or 440-480 VAC

RSIB 350-500 can operate at either 3x208-230 VAC or 3x440-480 VAC (default). The motor wiring terminals shown in Fig. 10 shows default jumper positions for 3x440-480VAC operation.

Fig. 10

If the application requires 3x208-240VAC operation, the jumper positions must be changed according to Fig. 11.

Fig. 11

After wiring, make sure the motor is rotating in the proper direction. This is marked on the motor end cover.

If the rotation is incorrect, swap the two wires going to the motor terminals, U1 and W1 as shown in paragraph 4.6 . (This does NOT apply to the RSIB 300)