Transfer Switch Data Decal; Transfer Switch Enclosure; Safe Use Of Transfer Switch; Installation - Generac Power Systems rtsy100a3 Owner's Manual

• Priority 3 and 4 have connections for one contactor only.
• Four LEDs, located on the Overload Prevention Control Board,
will indicate when a load priority level is enabled. When loads are
connected, the LEDs will be illuminated.
• Any loads, including central air conditioners, can be controlled via
a contactor that must be purchased separately. Up to four contac-
tors can be controlled by the Overload Prevention Control Board
(24 Vac or 120 Vac is supplied through the OPCB to energize each
contactor coil).
• Generator overload condition is determined by generator frequen-
cy. Loads are shed when the frequency is <58Hz for 3 seconds or
<50Hz for ½ Second (For 60Hz).
The OPCB has a Test button which forces the unit to act as if an
overload has occurred. This button operates even when the transfer
signal is inactive.
Figure 1.2 — Overload Prevention Control Board
Air Conditioner Connections:
Up to two A/Cs can be
controlled here via their low
voltage thermostat wires
Status LEDs: Shows which
loads are currently allowed to
run
1.4 TRANSFER SWITCH DATA
DECAL
A DATA DECAL is permanently affixed to the transfer switch enclo-
sure. Use this transfer switch only with the specific limits shown on
the DATA DECAL and on other decals and labels that may be affixed
to the switch. This will prevent damage to equipment and property.
When requesting information or ordering parts for this equipment, make
sure to include all information from the DATA DECAL.
Record the Model and Serial numbers in the space provided below for
future reference.
MODEL #
SERIAL #
LOAD
1
0 Ground
SUPPLY
194 +12V T1
NEUTRAL
23 Transfer
LOAD
2
SUPPLY
A/C 1
1
24V
LOAD 1
2
A/C 2
1A MAX
1 1 1
24V
LOAD 2
2 2 2 2
1A MAX
A/C 1 & LOAD 1
1 1 1 1
LOAD 3
A/C 2 & LOAD 2
2 2 2 2
1A MAX
1
LOAD 3
4
LOAD
2
LOAD 4
1A MAX
Load Connections: Up to four
loads of any type can be
controlled via these
connections. A separate
contactor module is required
1.5 TRANSFER SWITCH
ENCLOSURE
The standard switch enclosure is a National Electrical Manufacturer's
Association (NEMA) and UL 3R type. UL and NEMA 3R (indoor/out-
door rated) type enclosures primarily provide a degree of protection
against falling rain and sleet; undamaged by the formation of ice on
the enclosure.
1.6 SAFE USE OF TRANSFER
SWITCH
Before installing, operating or servicing this equipment, read the
SAFETY RULES (inside front cover) carefully. Comply strictly with all
SAFETY RULES to prevent accidents and/or damage to the equip-
ment. The manufacturer recommends that a copy of the SAFETY
RULES are posted near the transfer switch. Also, be sure to read all
instructions and information found on tags, labels and decals affixed
to the equipment.
Three publications that outline the safe use of transfer switches are
the following:
• NFPA 70; National Electrical Code
• NFPA 70E; Standard for Electrical Safety in the Workplace
• UL 1008, STANDARD FOR SAFETY-AUTOMATIC TRANSFER
SWITCHES
It is essential to use the latest version of any standard to ensure
correct and current information.
2.1 INTRODUCTION TO

INSTALLATION

This equipment has been wired and tested at the factory. Installing the
switch includes the following procedures:
• Mounting the enclosure.
• Connecting power source leads and load leads.
• Connecting the generator sensing and transfer relay circuits.
• Connecting any auxiliary contact (if needed)
• Connect Overload Prevention Control Board loads (as required)
• Testing functions.
2.2

MOUNTING

Mounting dimensions for the transfer switch enclosure are in this
manual. Enclosures are typically wall-mounted. See the "Installation
Diagram".

Handle transfer switches carefully when
installing. Do not drop the switch. Protect the
switch against impact at all times, and against
construction grit and metal chips. Never install
a transfer switch that has been damaged.
Installation
NOTE:
3