General Information; Introduction; Unpacking; Equipment Description - Generac RTSR800A3 El Manual Del Propietario

General Information

• Remove all jewelry (such as rings, watches, bracelets, etc.) before
working on this equipment.
• If work must be done on this equipment while standing on metal or
concrete, place insulative mats over a dry wood platform. Work on
this equipment only while standing on such insulative mats.
• Never work on this equipment while physically or mentally fatigued.
• Keep the transfer switch enclosure door closed and bolted at all
times. Only qualified personnel should be permitted access to the
switch interior.
• In case of an accident caused by electric shock, immediately shut
down the source of electrical power. If this is not possible, attempt
to free the victim from the live conductor but AVOID DIRECT
CONTACT WITH THE VICTIM. Use a nonconducting implement,
such as a dry rope or board, to free the victim from the live conduc-
tor. If the victim is unconscious, apply first aid and get immediate
medical help.
• When an automatic transfer switch is installed for a standby gen-
erator set, the generator engine may crank and start at any time
without warning. To avoid possible injury that might be caused by
such sudden start-ups, the system's automatic start circuit must
be disabled before working on or around the generator or transfer
switch. Then place a "DO NOT OPERATE" tag on the transfer
switch and on the generator. Remove the Negative (Neg) or (–)
battery cable.
1.1

INTRODUCTION

This manual has been prepared especially for the purpose of familiar-
izing personnel with the design, application, installation, operation
and servicing of the applicable equipment. Read the manual carefully
and comply with all instructions. This will help to prevent accidents or
damage to equipment that might otherwise be caused by careless-
ness, incorrect application, or improper procedures.
Every effort has been expended to make sure that the contents of this
manual are both accurate and current. The manufacturer, however,
reserves the right to change, alter or otherwise improve the product
or manual at any time without prior notice.
1.2

UNPACKING

Carefully unpack the transfer switch. Inspect closely for any damage
that might have occurred during shipment. The purchaser must file with
the carrier any claims for loss or damage incurred while in transit.
Check that all packing material is completely removed from the switch
prior to installation.
2
1.3

EQUIPMENT DESCRIPTION

The automatic transfer switch is used for transferring critical electrical
loads from a UTILITY (NORMAL) power source to an EMERGENCY
(GNERATOR) power source.
The transfer switch prevents electrical feedback between the UTILITY
and EMERGENCY sources. For that reason, electrical codes require
a transfer switch in all standby electric system installations.
When the transfer switch is connected to the engine generator control
panel, the control panel constantly monitors the UTILITY voltage and
controls the operation of the transfer switch.
Should the UTILITY voltage drop below a preset value, and remain at
this low voltage for a preset amount of time, the generator cranks and
starts. After the generator starts, the transfer switch transfers the load
circuits to the generator, the generator then supplies the loads. When
UTILITY returns above a preset level the load is transferred back to
the UTILITY and the generator shuts down.
This manual is for RTS models:
• RTSR600A3 600A - 120/240V, 1-phase
• RTSR600A3S 600A - 120/240V, 1-phase
• RTSV600A3 600A - 120/240V, 1-phase
• RTSR800A3 600A-120/240V 1-phase
• RTSR800A3S 600A-120/240V 1-phase
• RTSV800A3 600A-120/240V 1-phase
The Overload Prevention Control Board is designed to prevent an
overload on the generator when it is supplying the customer loads.
See figure 1.1. Up to six loads can be managed by the OPCB; 2 air
conditioner loads and 4 other loads. The OPCB manages the loads
by "shedding" the connected loads in the event of a drop in generator
frequency (overload). Loads to be "shed" are grouped in 4 priority
levels on the OPCB.
• Priority 1 and 2 has connections for both one air conditioner and
one contactor. Both an air conditioner and a contactor can be
used at the same time if desired. To control an air conditioner, no
additional equipment is required. Internal relays interrupt the ther-
mostat 24 VAC control signal to disable the air conditioner load.
• 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.
(The 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).