Generac Power Systems RXGW20SHA3, Owner'S Manual

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Installation
Automatic Transfer Switch Owner’s Manual 5
Section 2: Installation
Introduction to Installation
This equipment has been wired and tested at the factory.
Installing the transfer switch includes the following proce-
dures:
• Mounting the enclosure.
• Connecting power source and load leads.
• Connecting generator start and sensing circuit.
• Connecting any auxiliary contact (if needed).
• Testing functions.
Mounting the Enclosure
Mounting dimensions for the transfer switch enclosure
are in this manual. Enclosures are typically wall-
mounted. See
Drawings and Diagrams .
This transfer switch is mounted in a UL type 3R enclo-
sure. It can be mounted outside or inside and should be
based on the layout of installation, convenience, and
proximity to the utility supply and load center.
Install transfer switch as close as possible to electrical
loads that will be connected to it. Mount transfer switch
vertically to a rigid supporting structure. Level all mount-
ing points to prevent transfer switch distortion. Use wash-
ers behind mounting holes to level the unit if necessary.
Opening the Enclosure
See Figure 2-1 . First, remove outer cover (A):
1. Remove two thumb screws (B).
2. Slide slot (C) over retention tab.
3. Lower cover until clear of top flange (D), and pull
away from enclosure.
Then, remove inner panel (E):
4. Loosen nut (F).
5. Grasp inner panel at two cutouts (G—left and
right). Tilt inner panel as shown, passing nut
through t-slot (H) in inner panel.
6. Lower inner panel until clear of two retention slots
(J—left and right sides), and pull away from enclo-
sure.
Figure 2-1. Open Enclosure
(000119)
Equipment malfunction. Installing a dirty or damaged
transfer switch will cause equipment malfunction and
will result in death or serious injury.
DANGER
004086a
A
B
C
D
E
F
H
G
J