Labconco Guardian Jr. Airflow Monitor 9743200 Series - Manual (Page 10)

INSTALLATION
6
8 Foot, 230 Volt Hoods with External Blower
230 Volt: Locate the blue wire, which is connected to the blower switch. Disconnect this
blue wire from the blower switch terminal and connect to the blue wire in wiring harness
#48611 using the attached terminal. Reconnect the remaining terminal of the blue wire
(part #48611) to the original blower switch terminal. Locate the brown wire on the blower
switch, which is adjacent to the blue wire just connected above. Disconnect this brown
wire form the blower switch terminal and connect to the brown wire in wiring harness
#48611. Reconnect the remaining terminal on this brown wire to the blower switch
terminal where the brown wire was originally removed.
Basic 47 and 70 Fume Hoods
115 Volt: Locate the black wire, which connects from the incoming AC power (in junction
box) to the hood light switch. Disconnect this black wire form the light switch terminal
and connect to the solid black wire, which is part of #48610. This black wire will now
have two extra terminals attached – one of these terminals should be reconnected to the
light switch terminal. The other terminal should be connected to the unused lower switch
terminal located near the center of the blower switch. Next, connect the black/white wire,
which is a par of wiring harness #48610 to the remaining blower switch terminal. Next
connect the white wire from wiring harness #48610 to the terminal of the supplied white
wire labeled #48616. After this is done, route the stripped end of this white wire along
with the yellow blower switch wires into the hood junction box. Tie this white wire inside
the junction box to the other white wires from the blower, light, etc., using a wire nut.
Insulate the unused terminal on the white wire of wiring harness #48610 by removing the
terminal, stripping the wire and installing a wire nut.
230 Volt: Locate the black wire, which is connected to the hood blower switch.
Disconnect this black wire from the blower switch terminal and connect to the blue wire of
wiring harness #48611 using the attached terminal. Reconnect the remaining terminal of
the blue wire in harness #48611 back to the original blower switch terminal location.
Locate the white wire on the hood blower switch, which is adjacent to the blue wire just
connected above. Disconnect this white wire form the blower switch terminal and connect
to the brown wire of harness #48611. Reconnect the remaining terminal on this brown
wire to the blower switch terminal where the white wire was originally removed.
Perchloric Acid Hoods
Locate the black wire, which is tied to wiring harness #48610. Cut the tie and discard the
black wire, which features 3 terminals, as it is not required. Locate the white wire in
wiring harness #48610. Connect the terminal of this white wire back to the terminal of the
white wire #48616.
After this is done, route the stripped end of this white wire along with the yellow blower
switch wires into the hood junction box. Tie this white wire inside the junction box to the
other white wires from the blower, light, etc., using a wire nut. Insulate the unused