Connecting The Valves - Toro TMC-212 User Manual

373-0319 TCM 212 Doc2 12/20/04

Connecting the Valves

Note: Using 16 to 18 AWG (1.5mm
cable is recommended. This cable is made specifically for
automatic irrigation systems and is available in several
lengths and conductor count. Always use a cable that has
at least one wire for each valve and one wire for the valve
common connection.
1. Route the wire cable from the valve location into the
controller cabinet.
2. Attach the white color-coded cable wire to one wire
from each valve solenoid. This is called the valve
common wire.
Note: The solenoid does not have specific polarity,
so either wire can be used for the common wire
connection).
3. Connect an individual color-coded cable wire to the
remaining solenoid wire of each valve. Make a note
the wire insulation color used for each valve connec-
tion and the sprinkler zone controlled by the valve.
IMPORTANT: Properly insulate and waterproof all
solenoid wire connections and cable wire splices to
prevent short circuit conditions.
4. Remove 1/2" (13mm) of insulation from the end of all
cable wires to be connected to the controller.
12:30 PM Page 11
nals. To attach wires, simply raise the lever, insert the
stripped end of the wire, then press the lever down to
2 to 1mm 2 ) irrigation
secure the connection. After securing a wire, inspect the
connection to verify a small portion of bare wire is visible
to ensure that insulation is not present in the wire contact
area.
5. Referring to the Controller Components on page 5 and
IMPORTANT: The TMC-212 has snap-in wire termi-
11
8
9
Master
Valve Common Wire
Valve
the diagram above, secure the valve common wire to
the terminal labeled COM (8). Connect the individual
valve wires to the appropriate expansion module ter-
minals (11). The stations are numbered from left to
right, 1 through 12. Connect the master valve wire
(if applicable) to the terminal labeled PUMP/MV (9).
Station
Valves
11