Generac Power Systems Power Transfer System with Dual Load Manager Bedienungsanleitung

This symbol points out important safety instructions, which, if not followed, could endanger the personal safety and/or

property of yourself and others. Read and follow all instructions in the manual before attempting to operate this unit.

Model No. 140 -0 Power Transfer System Manual No. B4610 (Revision 2, 1/28/2000)

GENERAC

Portable Generator

Power Transfer System with Dual Load Manager™

Owner’s Manual

Problems?

Questions?

Before taking your system

back to the store,

call the generator

helpline at

18002701 08

MF 85 CT

DESCRIPTION

The Model 140 Power Transfer System safely connects up to twelve essential household loads, such as the

furnace fan, freezer, refrigerator, water well pump, sump pump, lighting or outlet circuits to either the utility power

or a portable generator. In the event of a utility power failure, the homeowner can safely select devices to be

loads. The power transfer system will not permit connection to both utility and generator power at the same time.

The Model 140 Power Transfer System is easy for a licensed electrician or qualified professional to install, safe

for a homeowner to operate, and will work with 240 Volt AC generators factory equipped with a NEMA type

14-50R receptacle.

This manual contains important warnings and information. READ AND RETAIN FOR REFERENCE.

IMPORTANT

This product must be installed in compliance with local residential wiring and electrical codes by a

licensed electrician or qualified professional. Generac Portable Products is not responsible for

damaged equipment, accidents, or personal injury caused by incorrect installation.

Read this Safety Manual and Instructions BEFORE operating Power Transfer System.

CONTENTS:

Installation Instructions - - - - - - - - - - - -Page 1 through 12

Owners Operating Procedure - - - - - -Page 1 through 16

Generac Portable Products Power Transfer System

NOTE: The maximum load allowed through each

Load Manager switch is 7200 Watts: 30 Amps at

2 0 Volts or 60 Amps at 120 Volts.

Per National Electric Code, connection of a

generator to any electrical circuit normally

of approved transfer switch equipment so as to

isolate the electrical circuit from the utility

distribution system when the generator is

operating. Failure to isolate the electrical circuits

by such means may result in injury or death to

utility power workers due to backfeed of

electrical energy.

CAUTION: Each Load Manager switch is for

indoor use only. The connection box is a NEMA

type R, intended for outdoor use.

NEMA stands for National Electrical Manufacturers Association.

GENERATOR

COMPATIBILITY

Only use a generator that is

factory-equipped with a NEMA

Type 14-50R receptacle.

NEVER use a generator equipped

with a -prong 240 Volt receptacle

because damage may occur in

connected appliances.

CARTON CONTENTS

Items in the shipping carton include:

 Two Load Manager Switches

 Connecting Box

 Connecting Cord Set

 50 Amp Connecting Plug

 Attention Decal

If any of the above parts are missing or damaged, call

the Generac helpline at 18002701 08.

UNPACKING

Remove the Power Transfer System components from

the shipping carton. Each Load Manager switch is

completely prewired and ready for installation. Inspect

the switches and attached wires and flexible conduit

for any shipping damage.

The connection box is supplied ready to be wired.

Inspect the box, the connection cord set, and the

connecting plug for any damage.

The installer will select and attach the connecting cord

plug, as described in the Installation Procedure,

step 22.

Items Not Shipped with Power Transfer System:

The following items, required for system installation,

are not included and must be provided by the installer:

1. Tools required for installation

2. Anchors and screws to mount the power transfer

system components and conduit.

. Junction box(s), conduit, fittings, wire nuts, and

insulated copper wire for connecting the Load

Manager switches to the outside connection box.

SPECIFICATIONS

Model Number.......................................................140

Maximum Circuits......................................................12

Maximum Load/Circuit from Generator ...........15 Amps

Maximum Load/Circuit from Load Center .......20 Amps

Maximum Watts per Load Manager...................7200

Connecting Cord Length .........................................8 ft.

Generac Portable Products Power Transfer System

GENERAL SAFETY

INFORMATION

1. A licensed electrician or qualified professional

(referred to herein as installer) must install

the power transfer system per local code.

2. During installation, the installer is required to

remove the cover from the building power

distribution panel (referred to herein as a load

center.) To reduce the risk of electrical shock, the

Main circuit breaker must be turned OFF while the

load center cover is removed.

. DO NOT OVERLOAD THE GENERATOR.

Overloading a generator in excess of its rated

wattage capacity will trip generator circuit

breakers.

4. Always plug the connecting cord set into the

connection box and generator BEFORE starting

the generator. Always shut the generator down

before detaching the cord set.

5. Portable generators attached to this Power

Transfer System must be operated outside, in

accordance with warnings and instructions found in

the generators Owners Manual.

PLAN THE INSTALLATION

The installer and the homeowner decide which circuits

are to be powered by the generator during a utility

power outage:

 The plan should ensure that no single circuit load

exceeds 15 Amps.

 The plan should also identify circuits that exceed the

15 Amp maximum.

 During generator operation, the homeowner should

use only necessary household items and to alternate

use of larger loads, such as water pump or electric

skillet. The installer will instruct the homeowner in

appropriate load management techniques.

Three methods of determining loads are given here:

Measure Actual Loads

The installer uses a clamp-on ammeter to measure

each of the actual desired loads to ensure each total

circuit draws less than 15 Amps.

Sum Loads from Data Plates

The installer inspects each desired device, notes

current consumption found on labels on each

appliance, then adds all loads on each circuit:

 The rated current of appliances and motors can

usually be found on a data plate or decal affixed to

the device.

 The rated wattage of lights can be taken from light

bulbs.

 Some electric motors, such as induction types,

require about three times more power for starting

than for running. This surge of power lasts for only a

few seconds when starting such motors. Be sure to

allow for this high starting load.

Estimate Loads

The third method estimates total circuit loads based on

information given in Figure 1.

APPLIANCE ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~LOAD DRAW

Air Conditioner (12,000 BTU) ~ ~ ~ ~ ~(1700W) 7A@240V

Coffee Maker ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(1000W) 8.4A@120V

*Electric Range (one element) ~ ~ ~(1500W) 6. A@240V

Electric Blanket ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(1500W) 12.5A@120V

Electric Skillet ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(1250W) 10.5A@120V

*Freezer ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(500W) 4.2A@120V

*Furnace Fan (1/ HP) ~ ~ ~ ~ ~ ~ ~(1200W) 10A@120V

*Jet Pump ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(800W) .4A@240V

Light Bulb ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(100W) 0.9A@120V

Microwave Oven ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(700W) 5.9A@120V

Oil Burner on Furnace ~ ~ ~ ~ ~ ~ ~ ~( 00W) 2.5A@120V

Oil Fired Heater ( 0,000 BTU) ~ ~ ~ ~(150W) 1. A@120V

Oil Fired Heater (85,000 BTU) ~ ~ ~ ~(225W) 1.9A@120V

Oil Fired Heater (140,000 BTU) ~ ~ ~(400W) .4A@120V

Radio ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(50 to 200W) 0.5 to 1.7A@120V

*Refrigerator ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(600W) 5A@120V

*Submersible Well Pump (1 HP) ~ ~(2000W) 8.4A@240V

Sump Pump ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(600W) 5A@120V

Television ~ ~ ~ ~ ~ ~ ~ ~(200 to 500W) 1.7 to 4.2A@120V

* Allow times the listed watts for starting these devices.

WATTS = AMPS x VOLTS

Figure 1  Load Reference Guide

Generac Portable Products Power Transfer System

INSTALLATION

PROCEDURE

Load Manager Switch

Before removing the load center cover, plan mounting

location for both Load Manager switches. To do so,

hold a Load Manager switch about 18 inches from

the center of the load center, as shown in Figure 2.

NOTE: The following procedure describes the

installation of one Load Manager switch. Use

identical instructions to install and test the second

Load Manager switch.

1. Ensure there is enough room to mount both Load

Manager switches so their flex conduit attaches

directly to the load center.

2. Identify appropriate vacant load center /4

knockouts.

DANGER: Contact with wires and terminals

inside the load center must be avoided as

contact may result in dangerous electrical

shock. Before removing the load center cover,

switch OFF the main circuit breaker serving the

load center. Remember that wires on the line

side of the main circuit breaker are electrically

dangerous.

. Turn OFF the load centers main circuit breaker,

then remove the load center cover.

4. Remove the predetermined knockouts. Route all

wires extending from the flexible conduit attached

to a Load Manager switch through the empty

hole, as shown in Figure . Secure the conduit

connector to the load center with the supplied lock

nut.

5. Anchor the Load Manager switch to the wall at

the selected position, as shown in Figure 4.

Figure 2  Planning Switch Location

Figure  Wire Loom from Switch

Figure 4  Anchoring Load Manager Switch

Generac Portable Products Power Transfer System

6. From the load management plan, determine the

load that is to be connected to Load Manager

switch circuit A. Turn that load center circuit

breaker to its OFF position. Loosen the screw

that retains the wire to this breaker, then detach

the wire. Figure 5 shows the selected load wire

detached from the circuit breaker.

7. Find the black and red wires marked A that come

from the Load Manager switch. Using good

workmanship, route both of these wires near the

selected circuit breaker. Trim and strip the red A

wire and install it properly into the circuit breaker.

8. Trim and strip the black A wire to mate with the

wire previously detached from the breaker. Secure

the wire ends with a wire nut. Neatly dress the

wires into the load center, as shown in Figure 6.

IMPORTANT:The installer should never cross the

black and red leads from the Load Manager switch.

Doing so will void the warranty and could cause

significant damage to Load Manager components

and the generator.

Make Sure:

 The RED wire from the Load Manager switch is

always connected to the circuit breaker.

 The BLACK wire from the Load Manager switch is

always connected to the wire going to the load.

DANGER! You must connect the Load

Manager switch wires as described or serious

damage to the equipment or yourself may result.

9. Select the load center circuit that will become load

management circuit B. Repeat Steps 6 through 8

for the red and black wires marked B coming

from the Load Manager switch.

10. If you wish to connect a 240 Volt AC two-pole

circuit, such as a well pump, proceed as follows:

a. Turn off the two-pole circuit breaker used for

the pump circuit and detach the load wires

from that breaker.

b. Select the four wires marked C and D

coming from the Load Manager switch

conduit and route them close to the selected

circuit breaker(s).

c. Repeat Steps 6 through 8 for each pair of red

and black wires C and D.

d. A typical two-pole circuit connection is shown

in simplified form in Figure 7.

Figure 7  Two-pole Connection

Figure 5  Wire Detached From Breaker

Wire removed

Figure 6  Single-pole Connection

Generac Portable Products Power Transfer System

11. If a two-pole circuit is not needed, the two-pole

coupled switch can be converted into two single-

pole circuits. Simply remove and discard the

handle tie connecting load management circuits

C and D, as shown on the right in Figure 8.

12. When steps 6 through 8 have been completed for

all desired circuits, install the WHITE (neutral) lead

coming from the Load Manager switch, as

follows:

a. Find an unused hole in the load center neutral

bar.

b. Trim and strip the white wire and install it into

the neutral bar.

c. Figure 9 shows a properly-connected WHITE

lead.

1 . Install the GREEN lead coming from the Load

Manager switch, as follows:

a. Find an unused hole in the load center

GROUND bar.

b. Trim and strip the green wire and install it into

the GROUND bar.

c. Remove protective backing from the Attention

Decal. Per National Electric Code, affix decal

to load center surface closest to the green wire

installed in (b.) above.

d. If no ground bar exists, install the GREEN wire

into an unused hole in the neutral bar. Affix

label as described in (c.).

e. Figure 10 shows a properly-connected GREEN

lead.

14. Install the second Load Manager switch,

repeating the instructions given in Steps 4 through

1 above.

15. After both Load Manager switches have been

installed, install the load center cover. Set all

switches on both Load Manager switches to the

LINE position. Turn ON the load center MAIN

breaker. All breakers in the load center connected

to Load Manager circuits should be switched on.

Load Manager switch installation is now

complete.

Figure 10  GREEN Lead Installation

Figure 9  WHITE Lead Installation

(Neutral)

Figure 8  Convert Two Pole to Single Pole

Handle Tie Installed Handle Tie Removed

Generac Portable Products Power Transfer System

Connection Box

The installer should use local codes and the following

procedure to install the generator connection box

provided with this system.

16. Locate and mount the connection box on an

outside wall as close as possible to the load

center. However, consider household air intake

ducting when when locating generator and

connection box. A typical power transfer system

complete installation is depicted in Figure 11.

17. As shown in Figure 12, mount a junction box at the

appropriate distance from the Load Manager

switches so that both 1/2 flexible conduits can be

connected to it.

Figure 12  Junction Box Installation

Figure 11  Typical Completed Power Transfer System Installation

Generac Portable Products Power Transfer System

18. Referring to Figure 1 , remove the connection box

inner panel. Mount the connection box at its

planned location on an outside wall.

19. Run appropriately sized conduit from the junction

box to the connection box. Anchor all boxes,

conduit, and fittings.

20. Pull four properly-sized insulated wires through the

conduit joining the junction box and the connection

box. Trim and strip each wire in the junction box.

Make secure connections using wire nuts.

Figure 14 shows wires from one of the two Load

Manager switches installed. When both switches

have been connected, install the junction box

cover.

Figure 1  Connection Box Installation

Figure 14  Junction Box Connections

Generac Portable Products Power Transfer System

21. As shown in Figure 15, trim, strip, and connect

each wire to the appropriate terminal on the

locking receptacle on the connection box inner

panel. Use the schematic affixed to the inside of

the connection box to make proper wire

connections. When all connections have been

made, install the connection box inner panel.

Connecting Cord Set

22. Referring to the schematic in Figure 16 and the

markings on the connector itself, properly attach

the plug to the pigtail end of the connecting cord

set.

Identifying Circuits

A label, similar to that depicted in Figure 17, is

provided on each Load Manager switch cover. The

installer should fill in this information, describing the

appliance and the related circuit numbers in the load

control center.

This completes the installation of the Generac Portable

Products Power Transfer System. The installer should

test the system, as described in the TESTING section,

and instruct the homeowner in proper routine testing

techniques.

Figure 15  Connection Box Connections

Figure 16  50 Amp Cord Set Connector

Figure 17  Circuit Identification Label

Generac Portable Products Power Transfer System

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