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Automatic circuit protection, Adding a zone module – Toro ECXTRA INDOOR User Manual

Page 39

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The ECXTRA features built-in circuit protection to help

prevent damage to the timer caused by excessive current

draw on the zone and/or pump/master valve circuits.
The instant an overload condition

is detected, the affected zone is

turned OFF and the next zone in

the watering sequence is turned

ON. The word “Fuse” and the bypassed zone number(s)

will begin flashing.
If the condition occurs on the

pump/master valve circuit, the

timer will alternately display MV

and FUSE and discontinue the

program operation.
To clear the warning display,
press the

–/

off

button.

The timer will resume normal operation as scheduled and

will attempt to run all zones as programmed.
IMPORTANT: Clearing the display does not correct
the problem. The timer will continue to bypass the
affected zones or discontinue operation until the
overload condition is eliminated. Generally this con-
dition is caused by a faulty valve solenoid or pump
start relay. Before continuing to operate the timer,
take corrective action to resolve the cause of the
problem.

1. Turn the control dial to the

off

position.

2. Remove the lower front cover from the timer housing

by sliding it downward.

3. Place the back of the zone control module (model #

53741) squarely between the guides of the first open

expansion slot (from left to right). Pushing lightly on

the bottom of the module, slide it upward until it locks

into position.

4. To connect the valve wires, refer to “Connecting the

Valves” on page 7 or 11.

5. Install the lower front cover.
6. To set the zone run time, refer to “Setting Zone Run

Times” on page 28.

7. To test the operation of the new watering zone(s),

refer to “Manual Operation” on page 31.

Automatic Circuit Protection

Adding a Zone Module

SENSOR

SENSOR

24VAC

FUSE

ALK

NiCad

DELAY

24HR

12HR

9V Battery

ON

OFF

7

4

3

2

1

8

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