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CAUTION: To prevent controller damage,
ensure the relay current draw does not exceed
0.35 Amps. Do not connect the controller
directly to the pump starter.
1. Route a wire pair from the pump relay into the con-
troller housing.
2. Connect one wire to the terminal labeled COM (12).
Connect the remaining wire to the terminal labeled
PUMP/MV (13) as shown below.
CAUTION: To prevent pump damage due to
“dead-heading”, connect a jumper wire from any
unused station terminal to a station terminal with
a valve connected.
Note: For model GK212-26-04, contact your Toro dis-
tributor for the recommended transformer.
CAUTION: Do not plug the transformer into an
electrical outlet until all of the wiring procedures
have been completed.
1. Route the cable from the transformer (17) through the
small opening provided in the base of the housing.
Wrap the cable around the post as shown below.
2. Connect one transformer cable wire to each terminal
labeled 24 VAC (14). The wires can be connected to
either terminal.
Connecting The TransformerConnecting A Pump Start Relay
24
1
234
5
678
17
14
1
234
5
6789
10
R
U
N
T
I
M
E
S
9V
BATTERY
Pump Relay Valve Common Wire
Jumper Wire