Kitchen Hoods • Type I and Type II
24
Field Wiring for the Ansul Snap-Action Switch
Manual Reset Relay
Part No. 426151
Ansul Snap-Action Switch
Part No. 423878
Switch contacts shown with Ansul
Automan in the cocked position
Black
Red
Brown
L2 Neutral
L1 Hot
110 VAC/60Hz
5
4
3
2
1
GND
Screw
Power
Indicator
Reset
A
B
Relay Coil
Electrical Rating
1/3 HP, 10 AMP, 115 VAC
1/2 HP, 10 AMP, 230 VAC
13 AMP, 28 VDC
Gas Valve
See Note 3
6
9
3
4
7
1
Snap-Action Switches may be wired as shown.
Typical examples shown.
Power to cooking
equipment
Shunt Trip Breaker
115 VAC
N
Input
NO
NC
Electric gas valve - If reset relay is
used, see option A or B at right.
Mechanical gas shut off valve does not
require electrical connection.
NO
NC
NO
Input
NC
Voltage Free
Contacts for
Building Alarm(s)
Power to
Fan(s)
Fan
Starter
Terminal strip in
Waterwash Control Panel
3
4
5
6
NO
NC
115 VAC
N
Input
Power to
fan(s)
Fan Starter
Manual Switch
If prohibited by local codes, do not shut down
exhaust fans with this method of wiring.
Note:
1.
Denotes field installation.
2.
Denotes factory installation.
3. Gas Valves: “UL Listed electrically-operated safety valve for natural or LP gas
as needed, of appropriate pressure and temperature rating, 110V/60Hz”
or Ansul gas valves.
4. Do not use black wire on snap-action switch in normal installation. Black
wire may only be used for extraneous alarm, light circuits, etc.
Equipment
Alarms
Fans
Ansul Wiring Plan View