100 Amp / 200 Amp Automatic Transfer Switch

40 Pages·2007·1.45 MB·English

Installation and Operator’s Manual
TS100A, TS100AD, TS200A, TS200AD
100 Amp / 200 Amp
Automatic Transfer Switch
with Service Disconnect &
AC Power Control Module™
Questions?
Help is just a moment away!
Call: Transfer Switch Helpline
[phone] M-F 8-5 CT
071028 & 071029 202213GS Rev. - (01/04/2007)
Thank you for your purchase of this Rheem/Ruud Automatic Transfer Switch. This product is intended for use with Rheem
and Ruud Home Standby Generator sets ONLY. This is an optional home standby system which provides an alternate source
of electric power and to serve loads such as a gas furnace, refrigeration and communication systems that, when stopped
during any power outage, could cause discomfort, or the like.
This manual containssafety information to make you aware of the hazards and risks associated with transfer switches and
how to avoid them. Rheem has made every effort to provide for a safe, streamlined and cost-effective installation. Each
installation is unique, it is impossible to know of and advise of all conceivable procedures and methods by which installation
might be achieved. We do not know all possible hazards and/or the results of each method or procedure. Save these
instructions for future reference.
This transfer switch requires installation before use. Refer to the Installationsection of this manual for instructions on
installation procedures. Only licensed electrical contractors should install transfer switches. Installations must strictly
comply with all applicable federal, state and local codes, standards and regulations.
Where to Find Us
You never have to look far to find support and service for your transfer switch. Consult your Yellow Pages. There are many
Rheem and Ruud authorized service dealers who provide quality service. You can also contact Rheem/Ruud Customer Service
by phone at [phone].
Transfer Switch
Model Number
Revision
Serial Number
Date Purchased
Rheem Sales Company
Randleman, NC 27317
[phone]
Copyright © 2007 Rheem Sales Company. All rights
reserved. No part of this material may be reproduced or
transmitted in any form by any means without the express
written permission of Rheem Sales Company.
Table of Contents
Important Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Owner Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installer Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Equipment Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mounting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power Wiring Interconnections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Supervisory Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
System Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Testing the Automatic Transfer Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Transfer Switch Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Transfer Switch Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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1
Save These Instructions
Important Safety Instructions
WARNING
This is the safety alert symbol. It is used to alert
you to potential personal injury hazards. Obey all Failure to properly ground transfer switch can
safety messages that follow this symbol to avoid result in electrocution.
possible injury or death.
• Do not touch bare wires.
The safety alert symbol ( ) is used with a signal word
• Do not use transfer switch with worn, frayed, bare or otherwise
(DANGER, CAUTION, WARNING), a pictorial and/or a safety
damaged wiring.
message to alert you to hazards. DANGERindicates a hazard
• Do not handle electrical cords while standing in water, while
which, if not avoided, willresult in death or serious injury. barefoot, or while hands or feet are wet.
WARNINGindicates a hazard which, if not avoided, could
• If you must work around a unit while it is operating, stand on an
result in death or serious injury. CAUTION indicates a hazard insulated dry surface to reduce shock hazard.
which, if not avoided, mightresult in minor or moderate • Do not allow unqualified persons or children to operate or
injury. NOTICEindicates a situation that could result in service transfer switch.
equipment damage. Follow safety messages to avoid or • In case of an accident caused by electrical shock, immediately
reduce the risk of injury or death. shut down all sources of electrical power and contact local
authorities. Avoid direct contact with the victim.
The manufacturer cannot possibly anticipate every possible
circumstance that might involve a hazard. The warnings in
this manual, and the tags and decals affixed to the unit are, WARNING
therefore, not all-inclusive. If you use a procedure, work
method or operating technique that the manufacturer does Transfer switch contains high voltage that can
not specifically recommend, you must satisfy yourself that it cause personal injury or death.
is safe for you and others. You must also make sure that the
procedure, work method or operating technique that you • Despite the safe design of the transfer switch, operating this
choose does not render the transfer switch unsafe. equipment imprudently, neglecting its maintenance or being
careless can cause possible injury or death.
WARNING NOTICE
Only qualified electricians should attempt installation of Improper treatment of transfer switch can damage it and
this system, which must strictly comply with applicable shorten its life.
codes, standards and regulations.
• Use transfer switch only for intended uses.
• If you have questions about intended use, ask dealer or contact
Rheem.
WARNING • Do not expose transfer switch to excessive moisture, dust, dirt,
or corrosive vapors.
Low voltage wire cannot be installed in same • Remain alert at all times while working on this equipment. Never
work on the equipment when you are physically or mentally
conduit as power voltage wiring.
fatigued.
• Failure to follow above warning could cause personal injury, • If connected devices overheat, turn them off and turn off their
damage and/or malfunction of equipment. circuit breaker/fuse.
2
Introduction Installer Responsibilities
• Read and observe the safety rules.
Your Rheem/Ruud Transfer Switch is supplied with this
• Read and follow the instructions given in this manual.
combined “Installation and Operator’s Manual”. This is an
• Check federal, state and local codes and authority
important document and should be retained by the owner
having jurisdiction, for questions on installation.
after the installation has been completed.
• Ensure generator is not overloaded with selected loads.
Every effort has been expended to make sure that the
If you need more information about the transfer switch, call
information in this manual is both accurate and current.
[phone], between 8:00AM and 5:00PM CT.
However, the manufacturer reserves the right to change, alter
or otherwise improve the system at any time without prior
Equipment Description
notice.
The transfer switches are intended to transfer the entire load
For the Home Owner of normal residential installations when used with the
To help you make informed choices and communicate supervisory contacts provided. The load is connected either
effectively with your installation contractor(s), to utility power (normal) or home standby power
(generator). The transfer switch monitors utility and
Read and understand the Owner Orientation Section
generator voltages and will automatically connect to the
of this manual BEFOREcontracting or starting your
appropriate source of power.
transfer switch installation.
These switches make it easy for a licensed electrician to
To arrange for proper installation, contact the store at which
complete a home standby installation. The unit contains
you purchased your Rheem/Ruud transfer switch, your
utility service disconnect circuit breaker, generator
dealer, or your utility power provider.
disconnect circuit breaker and automatic transfer switch in
The Transfer Switch Warranty is VOID
one enclosure. Service conduit and conductors can be wired
unless the system is installed by a
directly from your meter to the transfer switch. A separate
licensed electrical professional.
disconnect and associated wiring are not required when
installed per applicable federal, state and local codes,
Owner Orientation
standards and regulations.
The illustrations are for typical circumstances and are meant
Major components of the transfer switch are a 2 pole utility
to familiarize you with the installation options available with
disconnect circuit breaker, a 2 pole generator disconnect
your transfer switch.
circuit breaker, a 2 pole double throw transfer switch, control
Local codes, appearance, and distances are the factors that circuit board, fused utility terminals and interconnecting
must be considered when negotiating with an installation wiring. The control board also has two inputs for current
professional. As the distance from the existing electrical transformers that sense generator current.
service increases, compensation in wiring materials must be
The transfer switch is solenoid-operated from utility or
allowed for. This is necessary to comply with local codes and
generator inputs and contain suitable mechanical and
overcome electrical voltage drops.
electrical interlock switches to eliminate the possibility of
The factors mentioned above will have a direct effect on the connecting the utility service to the generator output. It has
overall price of your transfer switch installation. ratings capable of switching full utility power into the
NOTE:Your installer must check local codes AND obtain residence. In addition, a manual override lever is provided
permits before installing the system. for the transfer function.
• Read and follow the instructions given in this manual. The control circuit board has active circuits sensing utility
and generator voltages. It creates a signal for the generator
• Follow a regular schedule in caring for and using your
start-up, switch transfer and retransfer when utility is
transfer switch, as specified in the manual.
restored. The control board also contains red and green
LED’s indicating the power sources available and two relay
operated contacts that provide supervisory control of
external loads.
3
Installation Mounting Guidelines
The Automatic Transfer Switch is enclosed in a NEMA
Unpacking Type3R enclosure suitable for indoor/outdoor use.
Guidelines for mounting the Automatic Transfer Switch
include:
Delivery Inspection
• Install the switch on a firm, sturdy supporting structure.
After removing the carton, carefully inspect the transfer
switch components for any damage that may have occurred • The switch must be installed with minimum NEMA 3R
during shipment. hardware for conduit connections.
• To prevent switch contact distortion, level and plumb the
IMPORTANT:If loss or damage is noted at time of delivery,
enclosure. This can be done by placing washers between
have the person(s) making delivery note all damage on the
the switch enclosure and the mounting surface.
freight bill and affix his signature under the consignor's
• NEVER install the switch where any corrosive
memo of loss or damage. If loss or damage is noted after
substance might drip onto the enclosure.
delivery, contact the carrier for claim procedures. Missing or
damaged parts are not warranted. • Protect the switch at all times against excessive moisture,
dust, dirt, lint, construction grit and corrosive vapors.
Shipment Contents A typical and an alternative installation of the Automatic
• Automatic Power Transfer Switch Power Transfer Switch is depicted below. It is best if the
transfer switch is mounted near the utility meter, either
• Installation and Operator’s Manual
inside or outside. Discuss layout suggestions/ changes with
the owner before beginning the system installation process.
Typical
— — — — — — Control Wiring Transfer Watt -
Switch w/ Hourmeter
Service and
Generator
Disconnect
Contactor
Main
Breaker
Hot Generator
Panel
Water
Heater
Branch
Circuits
Air
Conditioner
Disconnect Switch
Alternate
— — — — — — Control Wiring Watt -
Hourmeter
Contactor
Branch
Circuits
Main
Emergency Transfer Breaker
Hot Load Switch Panel
Water Center
Heater
Generator
Emergency Air
Branch Conditioner
Circuits Disconnect Switch
4
Power Wiring Interconnections NOTE: Assure grounding electrode conductor is connected
and bonded per applicable federal, state and local codes,
All wiring must be the proper size, properly supported and
standards and regulations.
protected by conduit.
6. Route each generator feeder conductor from the
Complete the following connections between the transfer
generator control panel through the hole of a current
switch, main distribution panel, utility power and generator,
transformer. Then connect generator feeder conductor
as shown on below and on the next page.
to the line side of transfer switch “GENERATOR”
breaker.
WARNING
7. Plug in current transformer leads into “CT1” and “CT2”
Low voltage wire cannot be installed in same on control module.
conduit as power voltage wiring.
8. Connect Neutral conductor from the generator control
panel to the transfer switch “NEUTRAL” terminal.
• Failure to follow above warning could cause personal injury,
damage and/or malfunction of equipment. 9. Connect generator Ground conductor from the control
panel to the transfer switch “GND” terminal.
1. Ensure utility power is turned OFF. Connect utility
NOTE: Assure generator equipment grounding conductor is
Service conductors to line side of transfer switch
connected per applicable federal, state and local codes,
service disconnect circuit breaker.
standards and regulations.
2. Connect utility service Neutral conductor to the transfer
10. Connect generator “UTILITY 240 VAC” terminals to
switch “NEUTRAL” terminal.
transfer switch “UTILITY 240 VAC” terminals. Use
3. Connect main breaker panel feeder conductors to minimum #14 AWG conductors.
transfer switch terminals marked “LOAD
11. Tighten all wire connections/fasteners to proper torque.
CONNECTION”.
See inside transfer switch enclosure for proper torque
4. Connect main breaker panel Neutral conductor to values.
transfer switch “NEUTRAL” terminal.
5. Connect main breaker panel Ground conductor to the
transfer switch “GND” terminal.
To Utility Meter
Model TS100A, TS100AD
Generator
Connection
Supervisory
Current Contacts
Transformers
Load
Connection
Utility
Connection
Neutral
Terminal
Ground Terminal
Main Breaker Panel
Neutral
Bus Main
To Generator
Ground Bus
5
Model TS200A, TS200AD To Utility Meter
Generator
Current Connection
Transformers
Supervisory
Contacts
Utility Load
Connection Connection
Neutral
Ground Terminal Terminal
Main Distribution Panel
Neutral
Bus
Main
To Generator
Ground Bus
Supervisory Control Wiring
Air Conditioner Contactor
A
1. Terminal strip on control module in transfer switch has
four connections for customer use. There are two sets 24 VAC
A
of “Normally Closed” contacts available. They will be
activated when generator power is required. These can
be used for supervisory control of large connected
3. Terminals “B-B” on control module are rated for 1 Amp
loads on generator. Loads will be allowed to operate if
125VAC and installer supplied contactor to control a
there is enough generator power available.
large load. Example: electric hot water heater. Contacts
NOTE:There are two wireways provided to keep the
are connected in series with the contactor control
supervisory loads separated from each other.
circuit.
2. Terminals “A-A” on control module are rated for 24VAC
and air conditioner contactor control. Contacts are Contactor
B
connected in series with the air conditioner contactor Neutral
control circuit.
B
120 VAC
4. Tighten all wire connections/fasteners to proper torque.
See inside transfer switch enclosure for proper torque
values.
6
System Setup Operation
You must perform the following before operating the system:
To select automatic transfer operation, do the following:
• If generator is installed in an area regularly subjected to
1. Set utility service disconnect circuit breaker in transfer
temperatures below 40°F (4°C), select a 50 second
switch to “On” position.
warm up time by moving jumper installed on JP2 from
2. Set generator disconnect circuit breaker in transfer
‘20’ position to ‘50’ position.
switch to “On” position.
• Place the 2 position sliding switch on the control
module in the NG or LP position, whichever is 3. Set generator’s main circuit breaker to its “On” position.
appropriate for your system. 4. Install 15 Amp fuse in control panel on generator.
• Place the 3 position sliding switch on the control 5A. If generator is equipped with a system ON/OFF switch,
module to match the KW rating of the Home Standby set switch to “ON” position.
Generator set. B. If generator is equipped with a AUTO/OFF/MANUAL
switch, set switch to “AUTO” position.
3 Position 2 Position The system will now be in automatic operation mode.
Switch JP2 Switch When the generator is providing power to the transfer
switch, the controller is constantly monitoring generator
power. If the air conditioner is called to run, and there is
sufficient generator power available, the controller will close
contacts “A-A” to air conditioner contactor. Contacts “B-B”
will open before contacts A-A close. If loads are too great for
generator, contacts A-A and/or B-B will open. When air
conditioning is not needed, A-A will open. If enough power is
CT1 & CT2 available, B-B will close.
Connectors
Testing the Automatic Transfer Switch
Turn the utility disconnect circuit breaker in the transfer
switch, to the “Off” position. The automatic sequence will
follow. To go back to utility power, turn the utility disconnect
Supervisory circuit breaker to the “On” position.
Contacts
Utility Fail
The Home Standby Generator set senses when utility voltage
is below 70 percent of nominal. Engine start sequence is
initiated after 6 second time delay.
Engine Warm-Up
Time delay to allow for engine warm-up before transfer is
fixed at 20 seconds or 50 seconds with removal of jumper
on control board.
Transfer
Transfer from utility to generator supply occurs after voltage
is above set levels. Minimum engine run time is 5minutes
after transfer.
Utility Pickup
Voltage pickup level is 80 percent of nominal voltage.
Controls Retransfer
Retransfer from generator to utility supply is approximately
Other than a Manual Override lever, there are no operator 10seconds after utility voltage supply is above pickup level
controls because this is an automatic transfer switch. The and minimum run time is completed.
manual override is to be used only by licensed professionals.
Engine Cool Down
Engine will run for 60 seconds after retransfer.
7
Maintenance Specifications
The transfer switch is designed to be maintenance free under UL® 1008 Listed Transfer Switch
normal usage. However, inspection and maintenance checks
should be made on a regular basis. Maintenance will consist Model TS100A, TS100AD
mainly of keeping the transfer switch clean. Maximum Load Current: . . . . . . . . . . . . . . . . . . . .100 Amps
Visual inspections should be done at least once a month. Rated AC Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .250 Volts
Access to transfer switch must not be obstructed. Keep
Poles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
3feet (92 cm) clearance around transfer switch. Check for
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50/60 Hz
an accumulation of dirt, moisture and/or corrosion on and
Fault Current Rating . . . .22,000 RMS Symmetrical Amperes
around the enclosure, loose parts/hardware, cracks and/or
discoloration to insulation, and damaged or discolored Supervisory Contacts Rating:
components. A-A Terminals . . . . . . . . . . . . . . . . . . . . . . . . . .24 Volt AC
Exercise the transfer switch at least once every three months B-B Terminals . . . . . . . . . .1 Amp, 125 Volt AC, Pilot Duty
as described in the previous section Testing the Automatic
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 lbs.
Transfer Switchunless a power outage occurs and Home
Generator System has gone through automatic sequence. Model TS200A, TS200AD
Allow generator to run for at least 30 minutes.
Maximum Load Current: . . . . . . . . . . . . . . . . . . . .200 Amps
Contact a licensed electrical professional to inspect and clean
Rated AC Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .250 Volts
the inside of your transfer switch at least once a year.
Poles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50/60 Hz
Fault Current Rating . . . .25,000 RMS Symmetrical Amperes
Supervisory Contacts Rating:
A-A Terminals . . . . . . . . . . . . . . . . . . . . . . . . . .24 Volt AC
B-B Terminals . . . . . . . . . .1 Amp, 125 Volt AC, Pilot Duty
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 lbs.
8