For a
normally-open
sensor, attach the
Yellow
wire to the remaining sensor terminal.
Tape back the Brown wire. See Figure 3.
4. Attach the
Red
wires to the 24 Vac terminals.
Important
Most controllers with sensor
connections also provide a control switch to
bypass sensor operation if necessary. Check
the switch setting to make sure it is
not
in
the Bypass or Active position.
Wiring Procedure II (no sensor feature)
1. Locate the valve common wire terminal,
generally labeled “C” or “COM”, and remove
all common wires for valves, pump relay, etc.
2. Attach the
White
wire to this terminal.
3. Splice the
Brown
wire to the common wires
and insulate the connection using a wire nut
or electrical tape. Tape back the Yellow wire.
See Figure 4.
4
. Attach the
Red
wires to the 24 Vac terminals.
7
COM
PUMP/
MV
24 VAC
2
1
3
4
SENSOR
Red
Red
Red
White
Yellow
Red
White
Y
ellow
Brown
X
To Valves
PUMP/
MV
24 VAC
COM
2
1
3
4
Red
Red
Red
White
White
Brown
Red
Common
To Valves and
Pump/MV
Yellow
X
Figure 3 - Normally-open Sensor
Figure 4 - Splice Valve Common
RainSensorAlpha7 3/10/2005 3:31 PM Page 7
