Generac Power Systems NP-50G Series Manuel utilisateur

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Manual

No.

A6448

Air-cooled

Recreational

Vehicle

Generator

OWNER'S

MANUAL

POWER

SYSTEMS

INC.

Model

No.

00916*1

Series

NP-50G

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.

Revision

1

(8/6/98)

Printed

in

U.S.A.

-

T

HE

MANUFACTURER

SUGGESTS

THAT

THESE

“RULES”

FOR

SAFE

OPERATION

BE

COPIED

AND

POSTED

A

IN

POTENTIAL

HAZARD

AREAS

OF

THE

RECREATIONAL

VEHICLE.

SAFETY

SHOULD

BE

STRESSED

TO

ALL

”1

OPERATORS

AND

POTENTIAL

OPERATORS

OF

THIS

EQUIPMENT

•

Inspect

the

generator

periodically.

Repair

or

replace

all

damaged

or

defective

parts

immediately.

A

In

case

of

accident

caused

by

electric

shock,

shut

down

the

source

of

electrical

power

at

once.

If

this

cannot

be

done,

free

victim

from

live

conductor.

AVOID

DIRECT

CONTACT

WITH

THE

VICTIM.

Use

a

dry

board,

dry

rope,

or

other

non-conducting

implement

to

free

the

victim

from

live

conductor.

If

victim

Is

unconscious,

apply

first

aid

and

get

medical

help.

•

Inspect

fuel

system

frequently

for

leaks

or

damage.

Repair

or

replace

any

damaged

or

leaking

component

immediately.

Never

attempt

to

change,

alter

or

modify

the

generator

fuel

system

in

any

way

that

might

affect

safety

or

compliance

with

applicable

codes

and

standards.

The

engine

exhaust

from

this

product

contains

chemicals

known

to

the

State

of

California

to

cause

cancer,

birth

defects,

or

other

reproductive

harm.

Study

these

SAFETY

RULES

carefully

before

installing,

operating

or

ser¬

vicing

this

equipment.

Become

familiar

with

the

Owner’s

Manual

and

with

the

generator.

The

generator

can

operate

safely,

efficiently

and

reliably

only

if

it

is

properly

installed,

operated

and

maintained.

Many

accidents

are

caused

by

failing

to

follow

simple

and

fundamental

rules

or

precautions.

Generac

cannot

possibly

anticipate

every

possible

circumstance

that

might

involve

a

hazard.

The

warnings

in

this

Manual

and

on

tags

and

decals

affixed

to

the

unit

are

therefore,

not

all-indusive.

If

you

use

a

procedure,

work

method

or

operating

technique

Generac

does

not

specifically

recommend,

you

must

satisfy

yourself

that

it

is

safe

for

you

and

others.

You

must

also

make

sure

the

procedure,

work

method

or

operating

technique

that

you

choose

does

not

render

the

generator

to

be

unsafe.

•

For

fire

safety,

the

generator

must

be

installed

and

maintained

properly.

Installation

must

always

comply

with

applicable

codes,

standards,

laws

and

regulations.

Adhere

strictly

to

local,

state

and

national

electrical

and

building

codes.

Comply

with

regulations

the

Occupational

Safety

and

Health

Administration

(OSHA)

established.

Also,

the

generator

and

related

components

must

be

installed

completely

in

conformance

with

the

manufacturer's

instructions

and

recommendations.

Following

proper

A

The

generator

engine

gives

off

DEADLY

carbon

monoxide

gas

through

its

exhaust

system.

This

dangerous

gas,

if

breathed

in

sufficient

con¬

centrations,

can

cause

unconsciousness

or

even

death.

This

exhaust

system

must

have

been

properly

installed,

In

strict

compliance

with

applicable

codes

and

standards.

Following

installation,

you

must

do

nothing

that

might

render

the

system

unsafe

or

in

non-compliance

with

such

codes

and

standards.

The

generator

compartment

must

be

com¬

pletely

vapor

sealed

from

vehicle

interior.

There

must

be

no

possibility

of

exhaust

fumes

entering

the

vehicle

interior.

Never

operate

this

equipment

with

a

leaking

or

defective

exhaust

system.

•

Never

use

the

generator

or

any

of

its

parts

as

a

step.

Stepping

on

the

installation,

do

nothing

that

might

alter

a

safe

installation

and

render

the

unit

can

stress

and

break

parts

and

may

result

in

dangerous

operating

unit

in

non-compliance

with

such

codes,

standards,

laws

and

regulations.

conditions

from

leaking

exhaust

gases,

fuel

leakage,

oil

leakage,

etc.

A

The

Recreational

Vehicle

Generator

produces

extremely

high

and

dangerous

electrical

voltages

and

can

cause

dangerous,

and

possi¬

bly

fatal,

electrical

shock.

Avoid

contact

with

bare

wires,

terminals,

etc.

while

the

unit

is

running.

If

you

must

work

around

an

operating

gen¬

erator,

stand

on

an

insulated,

dry

surface

to

reduce

shock

hazard.

Never

work

on

this

equipment

or

handle

any

electrical

device

while

standing

in

water,

while

barefoot,

or

while

hands

or

feet

are

wet

Dan¬

gerous

electrical

shock

will

result

•

Have

the

generator

properly

grounded

(bonded)

during

installation

onto

the

vehicle,

either

by

solid

mounting

to

the

vehicle

frame

or

chassis

or

by

means

of

an

approved

bonding

conductor.

DO

NOT

disconnect

the

bonding

conductor,

if

so

equipped.

DO

NOT

reconnect

the

bonding

con¬

ductor

to

any

generator

part

that

might

be

removed

or

disassembled

durtog

routine

maintenance.

If

the

grounding

conductor

must

be

replaced,

use

only

a

flexible

conductor

that

is

of

No.

8

AWG

copper

wire

minimum.

•

Keep

hands,

feet

clothing,

etc.,

away

from

drive

belts,

fans

and

other

moving

parts

of

this

equipment

Never

remove

any

drive

belt

or

fan

guards

while

the

unit

is

operating.

•

Do

not

smoke

around

the

generator.

Wipe

up

any

fuel,

or

oil

spills

imme¬

diately.

Never

leave

oily

or

fuel

soaked

rags

in

the

generator

compartment

or

on

the

generator

itself.

Keep

the

area

around

the

generator

clean

and

free

of

debris.

•

Adequate

ventilation

is

required

to

expel

toxic

fumes

and

fuel

vapors

from

the

generator

compartment

Do

not

alter

the

installation

of

this

equip¬

ment

in

any

manner

that

might

obstruct

air

and

ventilation

openings.

Such

openings

must

be

kept

dear

and

unobstructed.

Some

generators

may

use

LP

gas

(propane)

as

a

fuel.

LP

gas

is

highly

EXPLOSIVE.

The

gas

Is

heavier

than

air

and

tends

to

settle

in

low

areas

where

even

the

slightest

spark

can

ignite

the

gas

and

cause

an

explosion.

•

Before

performing

any

maintenance

on

the

generator

set

disconnect

its

battery

cables

to

prevent

accidental

start

ip.

Disconnect

the

cable

from

the

battery

post

indicated

by

a

NEGATIVE,

NEG

or

(-)

first

Reconnect

that

cable

last

Recreational

Vehicle

Generator

Generac

NP-50G

Recreational

Vehicle

Generator

TABLE

OF

CONTENTS

SAFETY

RULES.Inside

Front

Cover

IDENTIFICATION

RECORD.3

GENERAL

FEATURES.3

READ

THIS

MANUAL

THOROUGHLY

Operation

and

Maintenance.5

How

to

Obtain

Service.5

GENERATOR

FAMILIARIZATION

Generator

Applicability.6

Installation.6

Safety.

6

Generator

AC

Connection

System....;.6

OPERATION

Generator

Control

Panel.7

Optional

Remote

Start/Stop

Panel.7

Automatic

Choke.8

Before

Starting

the

Engine.8

Starting

the

Generator.8-9

Stopping

the

Generator.9

Applying

Loads

to

Generator.9

Summer/Winter

Hear

Riser

System.9

Additional

Information.10-12

SPECIFICATIONS

Fuel

Requirements.

1

3

Engine

Oil

Requirements.13

Engine

Specifications.13

Generator

Specifications.....13

MAINTENANCE

Checking

Engine

Oil

Level.14

Change

Engine

Oil.14

Change

Oil

Filter.14

Engine

Air

Cleaner.

1

5

Clean

Air

Intake

Screen.

1

5

Engine

Spark

Plug...

1

5

Miscellaneous

Maintenance.16-17

Out

of

Service

Protection.17

Return

the

Unit

to

Service

after

Storage.17

TROUBLESHOOTING.18

ELECTRICAL

DATA.19

REPAIR

PARTS.20-29

EMISSIONS

WARRANTY.30-31

BASIC

3-YEAR

WARRANTY...back

cover

Recreational

Vehicle

Generator

READ

THIS

Mi

1

UAL

Generac

NP-50G

Recreational

Vehicle

Generator

READ

THIS

MANUAL

THOROUGHLY

If

you

don't

understand

any

portion

of

this

manual,

contact

Gen¬

erac

for

a

demonstration

of

actual

starting,

operating

and

servicing

procedures.

Throughout

this

publication

and

on

tags

and

decals

affixed

to

the

generator,

DANGER,

WARNING,

and

CAUTION

blocks

are

used

to

alert

you

to

special

instructions

about

a

particular

oper¬

ation

that

may

be

hazardous

if

performed

incorrectly

or

carelessly.

Observe

them

carefully.

These

safety

warnings

cannot

eliminate

the

hazards

that

they

indicate.

Strict

compliance

with

the

special

instructions

while

performing

the

service

plus

“common

sense"

are

major

mea¬

sures

to

prevent

accidents.

The

following

definitions

apply

to

DANGER,

WARNING,

CAU¬

TION,

and

NOTE

blocks

found

throughout

the

manual.

DANGER:

Indicates

an

immediately

hazardous

sit¬

uation

which,

if

not

avoided,

will

result

in

death

or

serious

injury.

Danger

is

limited

to

the

most

extreme

situations.

WARNING:

Indicates

a

potentially

hazardous

situ¬

ation

which,

if

not

avoided,

could

result

in

death

or

serious

injury.

CAUTION:

Indicates

a

potentially

hazardous

situa¬

tion

which,

if

not

avoided,

may

result

in

minor

or

moderate

injury.

Caution

may

also

be

used

to

alert

against

unsafe

practices.

NOTE:

After

this

heading

you

can

read

explanatory

statements

that

require

special

emphasis.

These

symbols

indicate

the

following:

Points

out

important

safety

information

and,

if

not

fol¬

lowed,

could

endanger

personal

safety

and/or

property

of

yourself

and

others.

Potential

fire

hazard.

Potential

electrical

shock

hazard.

The

operator

(driver)

is

responsible

for

proper

and

safe

use

of

the

vehicle,

equipment

on

the

vehicle,

and

the

safety

of

all

vehicle

occupants.

We

strongly

recommend

that

the

opera¬

tor

read

this

Owner’s

Manual

and

thoroughly

understand

all

instructions

before

using

this

equipment.

We

also

strongly

rec¬

ommend

instructing

other

occupants

in

the

vehicle

to

properly

start

and

operate

the

generator.

This

prepares

them

if

they

need

to

operate

the

equipment

in

an

emergency.

OPERATION

AND

MAINTENANCE

It

is

the

operator's

responsibility

to

perform

all

safety

checks;

to

make

sure

that

all

maintenance

for

safe

operation

is

per¬

formed

promptly;

and

to

have

the

equipment

checked

by

an

Authorized

Dealer

periodically.

Normal

maintenance

service

and

replacement

of

parts

are

the

responsibility

of

the

Owner/Operator

and,

as

such,

are

not

considered

defects

in

materials

or

workmanship

within

the

terms

of

the

warranty.

Indi¬

vidual

operating

habits

and

usage

contribute

to

the

need

for

maintenance

service.

Proper

maintenance

and

care

of

your

recreational

vehicle

generator

assures

a

minimum

number

of

problems

and

keeps

your

operating

expenses

at

a

minimum.

See

your

authorized

Dealer/Distributor

for

service

aids

and

accessories.

HOW

TO

OBTAIN

SERVICE

When

your

recreational

vehicle

generator

requires

servicing

or

repairs,

simply

contact

an

Authorized

Service

Facility

for

assistance.

Service

technicians

are

factory-trained

and

are

capable

of

handling

all

of

your

service

needs.

When

contacting

an

Authorized

Service

Facility

or

the

factory

about

parts

and

service,

always

supply

the

complete

model

number

and

serial

number

of

your

unit

as

given

on

its

data

decal.

The

warranty

on

your

generator

is

included

in

the

Owner’s

Manual,

as

well

as

listings

for

repair

parts.

DEALER

LOCATOR

PHONE

NUMBER

To

better

assist

our

customers

we

have

established

a

Dealer

Locator

phone

number

which

allows

the

customer

to

call

24

hours

a

day

to

find

the

nearest

Generac

dealer.

This

is

just

a

dealer

locator

number,

no

technical

service

can

be

provided

on

this

line.

1

-

800

-

333-1322

Recreational

Vehicle

Generator

Generac

NP-50G

Recreational

Vehicle

Generator

GENERAL

INFORMATION

GENERATOR

APPLICABILITY

These

generators

have

been

designed

and

manufactured

for

supplying

electrical

power

for

recreational

vehicles.

You

should

not

modify

the

generator

or

use

it

for

any

application

other

than

for

what

it

was

designed.

If

there

are

any

questions

pertain¬

ing

to

its

application,

write

or

call

the

factory.

Do

not

use

the

unit

until

you

have

been

advised

by

a

competent

authority.

DANGER:

For

fire

safety,

the

generator

must

have

been

properly

installed

in

compliance

with

(1)

ANS1119.2-1975/NFPA

501C-1974

“Standard

for

Recreational

Vehicles,

Part

III,

“Installation

of

Elec¬

trical

Systems.”

The

generator

also

must

have

been

installed

in

strict

compliance

with

the

manu¬

facturer’s

detailed

installation

instructions.

After

installation,

do

nothing

that

might

render

the

unit

in

non-compliance

with

such

codes,

standards

and

instructions.

An

INSTALLATION

MANUAL

was

shipped

with

the

genera¬

tor.

That

manual

contains

manufacturer’s

instructions

and

recommendations

for

installing

the

unit

into

a

recreational

vehicle.

After

installation,

installers

should

forward

the

Instal¬

lation

Manual

to

Owners/Operators

for

their

information.

Owners/Operators

have

the

responsibility

to

make

sure

that

nothing

is

done

that

might

render

the

installation

unsafe

or

in

non-compliance

with

applicable

codes,

standards

and

instruc¬

tions.

SAFETY

Before

attempting

to

use

the

generator

set,

carefully

read

GENERAL

SAFETY

RULES

inside

the

cover

of

this

Manual.

Comply

strictly

with

these

RULES

to

prevent

accidents

and

damage

to

equipment

and/or

property.

We

suggest

that

copy¬

ing

and

posting

GENERAL

SAFETY

RULES

in

potential

hazard

areas

of

the

vehicle.

Stress

safety

to

all

operators

and

poten¬

tial

operators

of

this

equipment.

You

can

use

this

generator

to

supply

electrical

power

for

oper¬

ating

120/240

volts,

single

phase,

60

Hertz,

AC

electrical

loads.

These

loads

can

require

up

to

4800

watts

of

(4.8kW)

of

power,

but

cannot

exceed

40

AC

amperes

of

current

at

120

volts

or

exceed

20

AC

amperes

at

240

volts.

CAUTION:

Do

not

overload

the

generator.

Some

installations

may

require

that

electrical

loads

be

alternated

to

avoid

overloading.

Applying

exces¬

sively

high

electrical

loads

may

damage

the

generator

and

may

shorten

its

life.

Add

up

the

rated

watts

of

all

electrical

lighting,

appliance,

tool

and

motor

loads

the

generator

will

power

at

one

time.

This

total

should

not

be

greater

than

the

wattage

capacity

of

the

generator.

If

an

electrical

device

nameplate

gives

only

volts

and

amps,

multi¬

ply

volts

times

amps

to

obtain

watts

(volts

x

amps

=

watts).

Some

electric

motors

require

more

watts

of

power

(or

amps

of

current)

for

starting

than

for

continuous

operation.

INSTALLATION

This

Owner's

Manual

has

been

prepared

under

the

assump¬

tion

that

a

competent,

qualified

technician

installed

the

generator.

We

also

assume

the

installer

complied

with

all

applicable

codes,

standards

and

regulations

pertaining

to

installation.

GENERATOR

AC

CONNECTION

SYSTEM

This

generator

set

is

equipped

with

dual

stator

AC

power

windings.

These

two

stator

windings

supply

electrical

power

to

customer

electrical

loads

by

means

of

a

dual

2-wire

con¬

nection

system.

Note,

however,

that

neutral

is

grounded.

The

generator

may

have

been

installed

so

that

units

power

120

volts

AC

loads

(Figure

1);

or

you

can

wire

them

to

con¬

nect

both

120

and/or

240

volts

AC

electrical

loads.

Be

sure

to

install

jumper

wire

between

the

circuit

breakers

when

recon¬

necting

for

120/240

volts.

Refer

to

the

Installation

Manual

for

more

information.

Figure

1

—

Connections

for

120

Volts

Only

Recreational

Vehicle

Generator

Generac

NP-50G

Recreational

Vehicle

Generator

GENERATOR

CONTROL

PANEL

Mounted

on

the

generator

control

panel

(Figure

2)

are

the

fol¬

lowing

features:

Figure

2

—

Generator

Control

Panel

RJBB

MAIN

START

THA

BRBAKBF)

■

FUEL

PRIMER

_

Before

starting

a

cold

engine

(if

it

has

not

been

started

in

more

than

two

weeks),

you

must

press

this

switch

for

approximately

5

seconds

to

bring

fuel

from

the

tank

to

the

carburetor.

This

rocker

type

switch

springs

back

into

its

original

position

when

you

release

it.

■

START/STOP

SWITCH

_

To

crank

and

start

the

engine,

hold

this

switch

at

its

START

position.

Release

the

switch

when

the

engine

starts.

To

stop

an

operating

engine,

press

and

hold

the

switch

in

its

STOP

position

until

the

engine

shuts

off.

The

switch

center

position

is

the

RUN

position.

■

FUSE

_

Protects

the

engine

DC

control

circuit

against

electrical

over¬

load.

If

the

fuse

element

has

melted

open

due

to

overloading,

the

engine

cannot

be

cranked.

If

you

must

replace

it,

use

only

an

identical

replacement

fuse.

■

MAIN

BREAKER

_

Protects

generators

AC

output

circuit

against

overload

and

pro¬

vides

a

method

of

turning

OFF

the

generators

120/240

volts

AC

output

to

vehicle

circuits.

The

NP-50G

has

one

20

amp

breaker

and

one

30

amp

breaker.

NOTE:

If

the

Series

NP-50G

has

been

reconnected

for

dual

voltage

AC

output

(120/240

volts),

you

can

install

line

break¬

ers

having

an

amperage

rating

that

is

different

than

stated

above.

The

replacement

line

breakers

consist

of

two

sepa¬

rate

breakers

with

a

connecting

piece

between

the

breaker

handles

(so

that

both

breakers

will

operate

at

the

same

time).

If

the

unit

is

reconnected

for

dual

voltage,

it

is

no

longer

RVIA

listed.

OPTIONAL

REMOTE

START/STOP

PANEL

A

remote

mounted

Start/Stop

Panel

is

available,

which

allows

you

to

start

and

stop

the

generator

engine

conveniently

from

inside

the

vehicle.

Figure

3

shows

the

Model

9042

remote

panel

which

includes

(a)

start/stop

switch

and

(b)

a

genera¬

tor

run

lamp.

Figure

3

—

Optional

Remote

Panel

(Model

9042)

r

v_

j

You

can

also

order

model

9043,

a

remote

panel

which

includes

the

(a

start/stop

switch,

(b)

the

generator

run

lamp

and

(c)

and

hourmeter.

The

hourmeter

provides

a

continuous

indication

of

engine-generator

operating

time.

Use

the

hourmeter

for

checking

off

periodic

maintenance

requirements

on

the

unit.

Recreational

Vehicle

Generator

7

Generac

NP-50G

Recreational

Vehicle

Generator

AUTOMATIC

CHOKE

The

engine

is

equipped

with

an

automatic

choke

that

consists

of

two

main

components

—

choke

solenoid

and

prechoke.

■

CHOKE

SOLENOID

_

During

engine

cranking

(start/stop

switch

at

START),

a

solid

state

choke

module

signals

the

choke

solenoid

to

actuate

and

cycle

(choke

on/choke

off)

until

the

engine

starts.

The

choke

solenoid

thus

opens

and

closes

the

carburetor

choke

valve

only

when

the

engine

is

cranking.

When

the

engine

starts,

the

choke

stops

cycling.

■

PRECHOKE

__

The

choke

system

also

has

a

temperature

sensitive

metal

strip

that

adjusts

choke

valve

angle

according

to

ambient

temper¬

atures

(i.e.,

in

cold

ambient

temperatures,

choke

valve

closes

more).

Once

the

engine

starts,

an

element

heats

the

tem¬

perature-sensitive

strip

to

a

normal

operating

condition,

opening

the

choke

valve.

This

may

take

about

3

minutes

in

cooler

weather.

BEFORE

STARTING

THE

ENGINE

IMPORTANT:

Instructions

and

information

in

this

manual

assume

the

generator

has

been

properly

installed,

connected,

serviced,

tested

and

adjusted

by

a

qualified

installation

tech¬

nician

or

installation

contractor.

■

INSTALLATION

_

Generator

installation

must

have

been

properly

completed

so

it

complies

with

all

applicable

codes,

standards

and

regula¬

tions

and

with

the

manufacturer's

recommendations.

■

ENGINE

LUBRICATION

_

Have

engine

crankcase

properly

serviced

with

recommended

oil

before

starting.

Refer

to

MAINTENANCE

and

SPECIFI¬

CATIONS

sections

for

oil

servicing

procedures

and

recommendations.

CAUTION:

Any

attempt

to

crank

or

start

the

engine

A

before

you

have

property

serviced

it

with

the

recom-

mended

oil

may

result

in

an

engine

failure.

■

FUEL

SUPPLY

_

The

engine

must

have

adequate

supply

of

proper

fuel

to

oper¬

ate.

Before

starting,

check

that

sufficient

fuel

is

available.

NOTE:

On

some

installation,

the

generator

engine

may

“share"

the

vehicles

gasoline

fuel

tank

with

vehicle

engine.

Some

instal¬

lations

may

provide

separate

fuel

tanks

for

generator

and

vehicle

engine.

■

COOLING

AND

VENTILATING

AIR

Air

inlet

and

outlet

openings

in

generator

compartment

must

be

open

and

unobstructed

for

continued

proper

operation.

Without

sufficient

cooling

and

ventilating

airflow,

engine-gen¬

erator

quickly

overheats

which

causes

it

to

shutdown

or

may

damage

the

generator.

■

ENGINE

EXHAUST

GAS

_

Before

starting

the

generator

engine,

you

should

be

sure

there

is

no

way

for

exhaust

gases

to

enter

the

vehicle

interior

and

endanger

people

or

animals.

Close

windows,

doors

and

other

openings

in

the

vehicle

that,

if

open,

might

permit

exhaust

gases

to

enter

the

vehicle.

DANGER:

The

generator

engine

gives

off

DEADLY

carbon

monoxide

gas

through

its

exhaust

system.

This

dangerous

gas,

if

breathed

in

sufficient

con¬

centrations,

can

cause

unconsciousness

or

even

death.

DO

NOT

OPERATE

THE

GENERATOR

IF

THE

EXHAUST

SYSTEM

IS

LEAKING

OR

HAS

BEEN

DAMAGED.

SYMPTOMS

OF

CARBON

MONOXIDE

POISONING

ARE

(a)

inability

to

think

coherently;

(b)

vomiting;

(c)

twitching

muscles;

(d)

throbbing

temples;

(e)

dizziness;

(f)

headaches;

(g)

weak¬

ness

and

sleepiness.

IF

YOU

FEEL

ANY

OF

THESE

SYMPTOMS,

MOVE

INTO

FRESH

AIR

IMMEDI¬

ATELY.

IF

SYMPTOMS

PERSIST,

GET

MEDICAL

HELP.

STARTING

THE

GENERATOR

IMPORTANT:

Read

the

vehicle

manufacturer’s

instructions.

The

owner/operator

should

become

familiar

with

the

vehicle

in

which

this

generator

is

installed.

Differences

exist

between

vehicles.

For

example,

some

vehicles

may

use

a

transfer

switch

to

isolate

dockside

power

from

the

generator,

while

other

vehicles

may

use

an

isolating

receptacle.

Some

vehicles

may

be

equipped

with

a

DC

converter

which

allows

the

generator

to

power

certain

DC

lighting

and

other

DC

loads.

To

start

the

generator

from

either

the

generator

control

panel

or

from

the

optional

Remote

Panel,

proceed

as

follows

on

page

9.

Recreational

Vehicle

Generator

8

Generac

NP-50G

Recreational

Vehicle

Generator

1.

Turn

OFF

electrical

loads,

using

whatever

means

provided

in

your

vehicle

(such

as

a

main

line

circuit

breaker

or

trans¬

fer

switch).

NOTE:

If

starting

from

the

generator

control

panel,

turn

OFF

loads

by

setting

the

generators

main

circuit

breaker

to

“OFP

or

“OPEN".

If

starting

from

a

Remote

Panel,

turn

OFF

loads

using

whatever

means

is

provided

in

the

vehicle

(such

as

a

main

circuit

breaker).

Electrical

load

circuits

will

be

turned

ON

after

the

generator

has

started,

stabilized

and

warmed

up.

2.

If

you

have

not

started

the

engine

in

more

than

two

weeks,

press

the

Fuel

Pump

Primer

switch

and

hold

it

for

about

30

seconds

to

prime

fuel

system.

However,

if

the

engine

is

warm,

skip

Step

2.

3.

Hold

the

engine

Start/Stop

Switch

at

START

to

crank

engine.

Release

the

switch

when

the

engine

starts.

CAUTION:

If

the

engine

does

not

start

after

it

has

been

cranking

for

15

seconds,

release

the

start/stop

switch

and

try

again.

Holding

the

switch

for

longer

than

15

seconds

can

damage

the

starter

motor.

4.

Let

the

engine

run

at

no-load

for

a

few

minutes

to

stabilize

and

warm

up.

5.

Turn

ON

electrical

loads,

using

whatever

means

provided

(such

as

a

main

circuit

breaker

or

transfer

switch).

STOPPING

THE

GENERATOR

1.

T

urn

OFF

all

electrical

loads,

using

whatever

means

pro¬

vided

(such

as

a

main

circuit

breaker

or

transfer

switch).

2.

Let

generator

run

at

no-load

for

a

few

minutes,

to

stabilize

internal

engine

generator

temperatures.

3.

Place

Start/Stop

switch

in

its

STOP

position.

If

electrical

loads

are

applied

at

reduced

operating

speeds,

such

loads

imposed

on

the

engine

when

sufficient

power

is

not

avail¬

able

may

shorten

engine

life.

Never

turn

ON

electrical

loads

until

after

the

generator

engine

has

started

and

stabilized

ON-speed.

SUMMER/WINTER

HEAT

RISER

SYSTEM

Under

certain

weather

conditions,

it

is

possible

for

ice

to

form

in

the

venturi

area

of

the

carburetor.

This

condition

can

be

very

dangerous

because

it

can

prevent

the

governor

system

from

functioning

properly,

which

results

in

a

“run-away”

engine.

The

most

common

weather

conditions

leading

to

this

problem

are

temperatures

in

the

range

of

25°

to

35°F,

along

with

high

humidity.

This

ice

formation

can

also

be

attributed

to

the

load

being

applied

during

these

weather

conditions.

Generators

running

with

no

load

or

light

loads

applied

usually

have

the

most

problems.

The

operator

is

responsible

for

adjusting

the

heat

riser

system

for

weather

conditions.

■

CONSTRUCTION

AND

FUNCTION

OF

HEAT

RISER

SYSTEM

_

The

system

consists

of

the

following

components:

•

Plastic

collector

box

that

is

attached

to

the

back

side

of

the

air

filter

base.

•

“Flapper"

valve

and

lever

assembly.

•

Corrugated

aluminum

tube

that

goes

from

the

above

plas¬

tic

box,

through

engine

enclosure

sheet

metal

and

nestled

very

close

to

exhaust

manifold.

Place

the

lever

in

the

“Summer”

position

(Figure

4),

to

draw

air

into

the

filter

box

directly

from

the

compartment

through

the

tube

on

the

right

side

of

the

plastic

box.

APPLYING

LOADS

TO

GENERATOR

When

applying

electrical

loads

to

the

generator,

observe

these

guidelines:

•

Before

applying

electrical

loads,

let

the

generator

stabilize

•

and

warm

up

for

a

minute

or

two.

•

DO

NOT

overload

the

generator.

■

LET

ENGINE

STABILIZE

The

generator

supplies

correct

rated

voltage

only

at

proper

governed

speed.

Some

electrical

appliances

may

be

extremely

sensitive

to

voltage.

Incorrect

voltages

can

damage

those

appliances.

Figure

4

—

Adjustment

Summer/Winter

Lever

Recreational

Vehicle

Generator

Place

the

lever

in

the

“Winter”

position

(25

-

30°F),

so

the

hole

in

the

plastic

tube

is

covered

and

the

aluminum

tube

is

opened.

As

mentioned

previously,

the

end

of

the

aluminum

tube

is

positioned

very

close

to

the

exhaust

manifold.

As

the

engine

is

running

and

the

exhaust

system

heats

up,

heated

air

is

drawn

through

the

aluminum

tube,

which

helps

to

prevent

ice

from

forming

on

the

carburetor.

■

DO

NOT

OVERLOAD

THE

GENERATOR

You

can

read

the

rated

wattage/amperage

capacity

of

your

gen¬

erator

on

the

generator

data

decal

(see

“Identification

Record”

on

Page

3).

Applying

electrical

loads

in

excess

of

the

unit’s

rated

capac¬

ity

will

cause

the

engine-generator

to

automatically

shutdown.

To

avoid

overloading,

add

up

the

wattage

of

all

connected

elec¬

trical

lighting,

appliance,

tool

and

motor

loads.

This

total

should

not

be

greater

than

the

generator’s

rated

wattage

capacity.

•

Most

lighting,

appliance,,

tool

and

motor

loads

indicate

their

required

watts

on

their

nameplate

or

data

plate.

For

light

bulbs,

simply

note

the

wattage

rating

of

the

bulb.

•

If

a

load

does

not

show

its

rated

wattage,

multiply

that

load's

rated

VOLTS

times

AMPS

to

obtain

WATTS.

•

Induction

type

motors

(such

as

those

that

run

the

vehicle’s

furnace

fan,

refrigerator,

air

conditioner,

etc.)

need

about

2-

1/2

time

more

watts

of

power

for

starting

than

for

running

(for

a

few

seconds

during

motor

starting).

Be

sure

to

allow

for

this

when

connecting

electrical

loads

to

the

generator.

First,

figure

the

watts

needed

to

start

electric

motors

in

the

system.

To

that

figure,

add

the

running

wattages

of

other

items

that

will

be

operated

by

the

generator.

•

Do

not

apply

heavy

electrical

loads

for

the

first

two

or

three

hours

of

operation.

ADDITIONAL

INFORMATION

This

section

discusses

some

the

the

engine

protective

devices,

overload

protection

and

breaking

in

a

new

generator.

■

AUTOMATIC

LOW

OIL

PRESSURE

SHUTDOWN

_

The

engine

is

equipped

with

a

normally-closed

(N.C.)

oil

pres¬

sure

switch

(Figure

5).

Engine

oil

pressure

holds

the

switch

open

during

cranking

and

operation.

Should

oil

pressure

drop

below

a

pre-set

level,

the

switch

contacts

close

and

the

engine

automatically

shuts

down.

WATTAGE

REFERENCE

GUIDE

RUNNING

WATTS

‘Air

Conditioner

(12,000

Btu).1700

Battery

Charger

(20

amp).500

Belt

Sander

(3").1000

Chain

Saw.1200

Circular

Saw

(6-12”)...800

to

1000

Coffee

Maker.1000

‘Compressor

(1HP).2000

‘Deep

Freeze.500

Disc

Sander

(9”).1200

Electric

Range

(one

element)

.1500

Electric

Skillet.1250

‘Furnace

Fan

(1/3

HP).1200

Hair

Dryer.1200

Hand

Drill

(1”).'.1100

Hedge

Trimmer.450

Impact

Wrench.500

RUNNING

WATTS

Lawn

Mower.1200

Light

Bulb.

100

Microwave

Oven.700

‘Milk

Cooler.

1100

Oil

Burner

on

Furnace.300

Oil

Fired

Space

Heater

(140,000

Btu).

400

‘Paint

Sprayer,

Airless

(1/3

HP).600

Radio.50

to

200

‘Refrigerator.600

Slow

Cooker.200

‘Submersible

Pump

(1-1/2

HP).2800

‘Submersible

Pump

(1

HP)

.

2000

‘Table

Saw

(10”).1750

to

2000

Television.1750

to

2000

*

Allow

2-1/2

times

the

listed

watts

for

starting

these

devices.

Recreational

Vehicle

Generator