Input Power Installation (continued)
Figure 5
Hot
Neutral
(
Black) (White)
Equipment
Ground (Green)
Note: Refer to Figure 5 for the following
procedure.
1.
2.
Ensure the controller power source is off.
Remove the switch cover plate and switch
from the input power junction box.
Note: The switch is attached to the black
transformer wire. Use care when removing the
switch to prevent straining this connection.
3.
Remove the conduit access knock-out plug
in the bottom left corner of the junction box
and install 3/4" electrical conduit to as
shown.
Switch
Note: The access opening in the junction
box is for 1/2" conduit. A 1/2" to 3/4" conduit
adapter will be required.
3/4"
Electrical
Conduit
Switch
Cover Plate
4.
5.
Route the Hot, Neutral and Equipment
Ground wires from the power source into
the junction box.
Strip 1/2" (13 mm) insulation from the Hot
(black) wire and secure to the remaining
switch terminal. Using insulated wire
connectors, splice the Neutral (white) wire to
the white transformer wire and the
Equipment Ground (green) wire to the green
transformer wire.
Wiring From
Power Source
6.
Reposition and secure the switch and cover
plate. Ensure the switch is set to the Off
(down) position.
Figure 6
Field Wire Installation
CM
1
1.
2.
3.
4.
To provide a field common wire, attach one
wire to either solenoid lead of all valves to
be operated by the controller.
48
37
1
2
Attach a separate power wire to each remain-
ing solenoid lead. Label these wires for identi-
fication at the station output modules.
4
Using an approved waterproof splicing
method, properly insulate all valve solenoid
wire connections.
12
C
Route the field wires into the controller cabinet
through 2" conduit. Remove approximately 3/8"
C
13
(10
mm) insulation from the ends of each wire.
Connect the valve common wire(s) to terminal
C” of any station output module.
36
5.
6.
“
Connect each valve power wire to the
appropriate station number terminal.
See Figure 6.
3
24
25
Caution: Maximum current load per
station must not exceed 0.5A.
C
7.
If a 24 V a.c. pump start relay or master
valve is used, connect the power wire to
terminal “M” of station output module
number 1 and the common wire to terminal “C” of any station output module.
Note: The Master (M) terminal on station output modules 2–4 is inoperative.
Caution: The pump start relay current load must not exceed 0.5A. Do not connect the pump starter directly to
the controller–damage to the controller will result.
4
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