Kenmore 33176 Owners Manual - Page 13

This

water

heater

shall

not

be

connected

to

any

heating

systems

or

component(s)

used

with

a

non-potable

water

heating

appliance.

All

piping

components

connected

to

this

unit

for

space

heating

applications

shall

be

suitable

for

use

with

potable

water.

Toxic

chemicals,

such

as those

used

for

boiler

treatment

shall

not

be

introduced

into

this

system.

Water

supply

systems

may,

because

of

such

events

as high

line

pressure,

frequent

cut-offs

or

the

effects

of

water

hammer

among

others,

have

installed

devices

such

as

pressure

reducing

valves,

check

valves,

back

flow

preventers,

etc.

to

control

these

types

of

problems.

When

these

devices

are

not

equipped

with

an

internal

by-pass,

and

no

other

measures

are

taken,

the

devices

cause

the

water

system

to

be

closed.

As

water

is heated,

it expands

(thermal

expansion)

and

closed

systems

do

not

allow

for

the

expansion

of

heated

water.

The

water

within

the

water

heater

tank

expands

as

it is heated

and

increases

the

pressure

of

the

water

system.

If

the

relieving

point

of

the

water

heater's

temperature-pressure

relief

valve

is

reached,

the

valve

will

relieve

the

excess

pressure.

The

temperature-pressure

relief

valve

is

not

intended

for

the

constant

relief

of

thermal

expansion.

This

is

an

unacceptable

condition

and

must

be

corrected.

It

is

recommended

that

any

devices

installed

which

could

create

a closed

system

have

a by-pass

and/or

the

system

have

an

expansion

tank

to

relieve

the

pressure

built

by

thermal

expansion

in

the

water

system.

Refer

to

the

Thermal

Expansion

section

under

Troubleshooting

Guide

or

contact

local

plumbing

authority

or local

Sears

Service

Center

on

how

to

control

this

situation.

NOTE:

To protect

against

untimely

corrosion

of

hot

and

cold

water

fittings,

it

is

strongly

recommended

that

di-electric

unions

or couplings

be

installed

on

this

water

heater

when

connected

to

copper

pipe.

Property

Damage

Hazard

- Avoid

water

heater

damage.

•

Install

thermal

expansion

tank

if necessary.

•

Do

not apply

heat

to cold

water

inlet.

. Contact

qualified

installer

or Sears

Service

Center.

Figure

16 shows

the

typical

attachment

of the

water

piping

to

the

water

heater.

The

74-gallon

model

water

heater

is

equipped

with

1" NPT

water

connections.

TYPICAL

INSTALLATION

SHUTOFF

VALVE

HOTWATER

C_

COLD

WATER

OUTLET

FEMALE

THREADED

[_

TO

SWEAT

cooPu.e

INSTALLED

DRAFT

HOOD

TEMPERATURE-

_

PRESSURE

RELIEF

VALVE

i_

_--_

DISCHARGE

PtPE

(Do

not

cap

or

plug)

AIR

GAP

_'_--_*

FLOOR

DRAIN

FIGURE 16.

NOTE:

If using

copper

tubing,

solder

tubing

to

an adapter

before

attaching

the

adapter

to

the

water

connections.

Do

not

solder

the

water

lines

directly

to

the

water

connections

on

the

tank.

It

will

harm

the

dip

tube

and

damage

the

tank,

Look

at the

top

cover

of the

water

heater.

The

water

outlet

is

marked

"HOT".

Put

two

or

three

turns

of

teflon

tape

around

the

exposed

end

of

the

NPT

threaded

nipple.

Connect

the

hot

water

pipe

to the

hot

water

outlet

on

the

water

heater.

Please

note

that

adapters

may

be needed

to

match

existing

piping.

Look

at

the

top

of

the

water

heater.

The

cold

water

inlet

is marked

"COLD".

Put

two

or

three

turns

of

teflon

tape

around

the

exposed

end

of

the

NPT

threaded

nipple.

Connect

the

cold

water

pipe

to

the

cold

water

inlet

of

the

water

heater.

Please

note

that

adapters

may

be

needed

to

match

existing

piping.

NOTE:

This

water

heater

is

super

insulated

to

minimize

heat

loss

from

the

tank.

Further

reduction

in

heat

loss

can

be

accomplished

by

insulating

the

hot

water

lines

from

the

water

heater,

13

Kenmore 33176 Owners Manual - Page 13

SWEAT, cooPu.e

Page 13 highlights