background image

8.

From the inside of the house, feed the end of the 30-
foot conduit (INCLUDED and pre-wired from transfer
switch) through the wall to outside. 

9.

Remove the threaded lock nut from the conduit coupling. 

10. 

Remove the knock out

in the lower right corner of
the external connection box.
From the rear of the
connection box, feed wires
& 4 pin plug into box. Slip
the lock nut over wires and
plug and tighten securely
onto conduit coupling.
Connect the black, red, and
white wires to separate
threaded lugs and tighten
securely. Screw the green
ground wire securely to the
bottom of the box. 

NOTE:

THE 4-PIN PLUG WILL not
be connected to any
mating plug or other wires.

11. 

Using appropriate

fasteners, mount
external connection
box over pre-drilled
hole to fully conceal
the hole. (Seal around
the hole and conduit
with silicone caulk
from both outside
and inside of house.)

The external connection box must be locked to ensure
safety and to discourage tampering.

12.

Locate automatic transfer switch with built-in
emergency load center within one foot of main
distribution panel. The automatic transfer switch can
be located to the left or right of main distribution
panel.  Hold transfer switch against the mounting
surface. Level the transfer switch and mark the
mounting holes. Drill the appropriate size pilot holes.
Mount the automatic transfer switch to mounting
surface with appropriate fasteners.

Silicone

Caulk

The outer diameter of the 

conduit connector is 1-11/16”

The outer diameter
of the threaded end
is 15/16 inches.

Knockout

4

1ft.

10    Connect Wires

--- 

 

WARNING 

 

---

DANGER:

Although you may choose to perform

electrical connections yourself, Generac Power Systems,
Inc. recommends that a licensed electrician or individual
with complete knowledge of electricity perform the
procedures in sections 13 and 14.

 

DANGER:

Switch service main circuit

breaker to “off” or open position prior to
removal of cover or removal of any wiring of
the main electrical distribution panel.  The
wires connected to the service main circuit
breaker remain live or “hot”.  Avoid contact with these
wires and the service main circuit breaker connection lugs.

“OFF”

Feed Conduit and Wires

8

Threaded Lock Nut

9

Connect Wires

10

Mounting Automatic Transfer Switch

12

Mount External Connection Box

11

Installation Guide

Summary of Contents for 1276-1

Page 1: ...the Guardian Home Standby Generator or the Owner s Manual furnished with the Guardian Ultra Source Portable Generator you may purchase in the future Please review the installation procedure again at t...

Page 2: ...Generator for emergency power now Later install your Standby for automatic emergency power 100 AMP automatic transfer switch with built in load center 30ft and 2ft pre wired conduits 5ft power cord an...

Page 3: ...INSTALLATION DRAWING AUTOMATIC TRANSFER SWITCH CONNECTED TO THE EXTERNAL CONNECTION BOX Installation Guide...

Page 4: ...y possible circumstance that might involve a hazard The warnings in this manual and on tags and decals affixed to the unit are therefore not all inclusive If you use a procedure work method or operati...

Page 5: ...N TO THE HOME S MAIN DISTRIBUTION PANEL 12 UL LISTED WIRE NUTS not shown TOOLS REQUIRED Drill drill bits hole saw type and length will be determined by the materials you will be drilling and cutting o...

Page 6: ...Let the engine run for a minute or two at no load to stabilize the internal temperatures 3 Turn off the generator 4 Turn OFF the utility power supply to the transfer switch using the means provided s...

Page 7: ...of main distribution panel The automatic transfer switch can be located to the left or right of main distribution panel Hold transfer switch against the mounting surface Level the transfer switch and...

Page 8: ...f a power failure Wire nut the black wire to the matching circuit lead wire from the emergency circuit breaker from load center in the transfer switch All circuit wires are color coded and labeled for...

Page 9: ...on to enter beyond the clamp to the inside of the box TIghten clamp securely Attach ground wire green to the bottom of the box using the supplied ground screw and pre drilled hole Connect red black an...

Page 10: ...and length of the generator mounting pad 48 L x 24 W 3 Lay black poly film to cover the area 4 Fill the area to ground level with pea gravel or crushed stone 5 Drive an 8 foot grounding rod into the g...

Reviews: