Energy Tech Laboratories ETL - Energy Technology Laboratories Blower RSIB 300-500 ユーザーズマニュアル

10

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.

24V GAS VALVE

COM

TR

HOT

TH

PROVEN DRAFT

SWITCH

B

LACK

B

LACK

RED

GREEN

POWER SUPPLY

200-240/3/60

or

440-480/3/60

24 VAC

NOTES:

      THE DISCONNECT MEANS AND CIRCUIT PROTECTION ARE TO

      BE PROVIDED BY THE INSTALLER OF THIS DEVICE

      

1

All wiring must be in

flexible or rigid metal

conduit

LEGEND:

           24 VAC

           200-240 or 440-480 VAC

WEA

THERPROOF 

BO

X

VARIABLE FREQUENCY

DRIVE (typical)

FAN

MOTOR

L1  L2 L3  U   V   W

 

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.

 

If the application requires 3x208-240VAC operation, the jumper  

 

positions must be changed according to 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)