Fixing Arrangement Of Terminal Block (Drawing No: D258302 F); Wiring Detail: Single Phase Fans With Duct Mounted Terminal Box; Wiring Detail: Single Phase Fans Using Terminal Box On Motor - Woods 905989 Safety Installation And Maintenance Instructions

FIGURE 1
A STANDARD TWO STAGE CONTRA-ROTATING AXIAL FAN COMPRISES 1 OFF FORM A RIGHT-HAND IMPELLER FOLLOWED
BY 1 OFF FORM B, LEFT-HAND IMPELLER
This arrangement does not apply to: identical fans in series, Bifurcated Fans or fans fitted with guide vanes.
FIGURE 2
IMPORTANT NOTE:
This drawing shows the correct assembly sequence of Terminal Parts.
It is essential that no Lock washers or Nuts are placed between the Motor
Lead Eyelet, Connecting Link or Customer Supply Lead Eyelet (when fitted)
Terminal Screw Lock washer
Brass Washer
(Fitted with Connecting Links)
Packing Washer
(omit from assembly
where stud thread continues
to terminal block surface)
Identification Tag
Terminal Block
Terminal Screw
FIXING ARRANGEMENT OF TERMINAL BLOCK
Diagram only applies to HT (high temperature smoke venting fans) and Bifurcated JM fans.
It does not apply to Series 33 Bifurcated JM fans
18
CDE =
Clockwise (rotation) looking
at the Driven (impeller) End
ACDE =
Anti-Clockwise (rotation)
looking at the Driven (impeller) End
Terminal Screw Locknut
Terminal Screw Washer
Customers supply Lead Eyelet
(when fitted)
Connecting Links (when fitted)
Do not use Copper wire links
Motor Lead Eyelet
Fixing Torque Values M6 5.5 Nm - Brass
M4 1.5 Nm - Brass M8 10.5 Nm - Brass
M5 2.7 Nm - Brass M10 55.0 Nm - Steel
Internal Capacitor and Integral Overheat Protection
UZ Z U
Other circuits if fitted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
SPEED CONTROL WARNING
K K P
When used with a Speed Controller
L N
Remove link U to P, Connect Controller
To change rotation interchange UZ to Central K, U to U and Z to P as
U1-U2 in Motor Terminal Box shown
UZ U Z P Z U UZ
K K
CD1705
PN 502271 FAN CONTROLLER
Integral Capacitor and Remote Overheat Protection
UZ Z U
Other circuits if fitted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
K K P
SPEED CONTROL WARNING
When used with a Speed Controller
L N
Remove link U to P.
To remote
Connections shown below
Contactor
Coil Circuit
To change rotation interchange
U1-U2 in Motor Terminal Box
K K UZ U Z P Z U UZ
CD1708
PN 502260 FAN CONTROLLER

WIRING DETAIL: SINGLE PHASE FANS WITH DUCT MOUNTED TERMINAL BOX

Wiring leads in BT/CT motors are black and red in colour instead of being marked as "U1" and "U2".
K K UZ U Z P
UZ U Z L N E
L N E
PN 502331 Diagram A
External Capacitor Remote Overheat Protector
P Z U UZ K K
L
N
CD1651
PN 502478 Diagram B

WIRING DETAIL: SINGLE PHASE FANS USING TERMINAL BOX ON MOTOR

1 PHASE FIGURE 3
External Capacitor and Integral Overheat Protection
UZ Z U
Other circuits if fitted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
K K P SPEED CONTROL WARNING
When used with a Speed Controller
L N
Change Capacitor Lead from U to P,
To change rotation interchange Connect Controller UZ to Central K,
U1-U2 in Motor Terminal Box U to U and Z to P as shown
UZ U Z P Z U UZ
K K
CD1706
PN 502273 FAN CONTROLLER
External Capacitor
UZ Z U Other circuits if fitted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
K K P SPEED CONTROL WARNING
When used with a Speed Controller
L N
Change Capacitor Lead from Terminal U
If fitted connect to
to Terminal P. Connections shown below
Contactor Coil Circuit
To change rotation interchange
U1-U2 in Motor Terminal Box
K K UZ U Z P Z U UZ
CD1709
PN 502261 FAN CONTROLLER
1 PHASE FIGURE 4
Internal Capacitor Remote Overheat Protector
P Z U UZ K K
To Contactor
Coil Circuit
N L
Diagram C
PN 502332
External Capacitor Remote Overheat Protector
P Z U UZ K K
To Contactor
N L
Coil Circuit
CD1652
PN 502479 Diagram D
19