Connecting Electrical Power - Orbit 57880 Manual Del Usuario

Connecting Valve Wires to the Sprinkler Timer
• Remove the terminal compartment cover.
• Strip 1/4" (6 mm) of the plastic insulation off the end of
each wire.
• Determine which valve you want to connect to which station.
• Connect each sprinkler wire (excluding the "Common" wire)
to a separate station terminal (numbered above each terminal
screw) by inserting the bare wire fully into the hole under each
terminal screw. [See Figure 14]
• It may be necessary to open the terminal to allow for wire
insertion or removal. To do this, you'll need to use a small
Phillips screwdriver.
Note: it isn't necessary to fully remove the screw
• Connect the common wire to the terminal (white in color)
labeled "COMMON".
Note: For installation instructions for Pump Start, Master Valve and Rain
Sensors see Appendix A.

5. Connecting Electrical Power

Common Wire
Station Valves
Figure 14: Connecting Sprinkler Wire
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Note: For outdoor installation it is recommended that a qualified electri-
cian completes wiring in accordance with electrical codes and regulation.
This sprinkler timer is intended for use with a Ground Fault Interrupter
(GFI) protected circuit when used outdoors.
Check the model number of your sprinkler timer: various models
are configured differently to meet national requirements. The model
number can be found on the back of the door, together with other
useful information.
FIND YOUR mODeL BeLOW AND GO TO THe APPROPRIATe
SeCTION:
Models 57880, 57881, 57882, 57883, 27780, 27781, 27782, 27783,
91880, 91881, 91882, 91883
• For Indoor mounting go to the Fitted Line Cord section below.
• For Outdoor mounting go to the Preparing for Permanent
Wiring section below
Models 94880, 94881, 94882, 94883
• Please go to the Preparing for Permanent Wiring section
below.
FITTeD LINe CORD INSTALLATION
Replacement of the supply Cord: If the supply cord is damaged it
must be replaced by a service agent or similarly qualified person in
order to avoid a hazard
• Indoor Locations - Insert the line cord into Ground Fault
Interrupter (GFI) outlet.
• Outdoor Locations - Insert the line cord into a power Ground
Fault Interrupter (GFI) outlet connected to a GFI circuit.
PRePARING FOR PeRmANeNT WIRING
The following three "Pigtail" wires extend out of the bottom of the
box:
• Black "pigtail" wire – Hot
• White "pigtail" wire – Neutral
• Green "pigtail" wire –Ground
INStaLLatIoN USING pErmaNENt WIrING
Important: The sprinkler timer has a built-in transformer that must
be connected to an AC line voltage source. Check the back of the
sprinkler timer box for power requirements. Local building and elec-
trical codes usually require that an approved electrical conduit and
electrical fittings be used to connect exterior wall-mounted equipment
to AC power. Please check local codes. Any permanent connection
should be made by a licensed electrical contractor in accordance with
the requirements of the National Electrical Code and other state and
local codes.
Caution: Do not connect the sprinkler timer to one phase of a three phase
power system used by a pump or other electrical equipment.
Important: This sprinkler timer has a ¾" knock-out. Use a ¾" (13mm)
waterproof connector to connect the sprinkler timer to a standard electri-
cal junction box. Both connector and junction box must be UL Listed or
equivalent or comply with IEC or EN standards or equivalent.
• Turn off the AC power at the AC circuit breaker and apply
an appropriate safety lockout. Verify that the power has been
turned off to the installation site using an AC voltmeter set for
the correct measurement range.
• Use power feed wire of 14 gauge (AWG) minimum with a
temperature rating of 155 degrees Fahrenheit (68 degrees
Celsius) or higher.
• Install the conduit and associated fittings. Connect the AC
electrical power wiring to the source by following all the right
codes and local standards.
• Connect the junction box and 3/4" Connector to the Timer
(Junction box and Connector not included). [See Figure 15]
• Connect the source power conduit to the entrance of the junc-
tion box, following all the appropriate codes.
• Take the cord (running from the timer to the junction box)
from the junction box and cut it to length. Remove the outer
insulation (from cord) to expose the three wires.
• Connect the source wires to the wires extending from the
sprinkler timer.
• Take care to follow the correct color code. For USA: connect
the Green for Ground, Black for Live, and White for Neutral.
Often the source ground may be bare copper conductor rather
than green wire. For Europe: Live is Brown and Neutral is
Blue, there is no ground connection required. Be sure that all
wires are connected to the proper source wire.
• Make sure all connections are made with code-approved insu-
lated connectors.
• Be sure to place a weatherproof gasket and lid on the junction
box.
• Turn AC power on at the AC circuit breaker.
1/2" Connector
Junction
Box
3 Wire
Connectors
Figure 15: Using a Junction Box
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