A.O. Smith HW-160, Instructions And Guarantee

l'I

.I'.,

12$

!„"';"

I

'

"i!

Ll

I NEUTRAL

b

I

IIF

PRI

c'I

ALARM

MR

F

Through

pressure

relief

valve

opening

.

4.

Operate

the

system

for

a minimum

of

1 hour

(to

a maximum

of

24

hours).

As

noted

above,

•

Close

system

inlet

and

outlet

valves

at

the

system

pressure

and

temperature

must

be

g".

•

boiler.

such

that

the

water

does

not

boll.

•

Relieve

pressure

from

boiler

and

remove

p

pressure

relief

valve

from

air

purger.

5.

SYSTEM

MUST

NOW

BE

DRAINED

AND

FLUSHED.

•

Remove

an

amount

of

water

from

the

sys-

tem

approximately

equal

to

the

volume

of

•

Close

the

manual

gas

shutoff

valve

to

cleaning

solution

to

be added.

turn

off

the

burner.

This

will

allow

the

circulator

to

continue

operating

during

•

Add

the

cleaning

solution

to

the

system

the

flushing

procedure.

1,:I

through

the

relief

valve

opening.

Replace

relief

valve.

.

Open

the

cold

water

supply

to

the

sys-

tem.

N

.

•

Open

system

inlet

and

outlet

valves

at

boiler.

•

Connect

a

hose

to

the

boiler

drain

valve,

allow

cleaning

solution

to

flow

to

drain.

I.

3.

Pressurize

the

system.

If

necessary,

open

the

cold

water

supply

valve

and

add

pressure

•

All

cleaner

should

be

removed

after

15

to

to

the

system

so

that

the

water

does

not

boil

20

minutes

of

flushing.

during

the

cleaning

process.

OPERATING

INSTRUCTIONS

LIGHTING

INSTRUCTIONS

CAUTION:

Make

sure

heater

is

filled

with

water

'20v·ª°H

~

before

lighting

pilot.

The

main

(man-

ual)

gas

shutoff

valve

and

pilot

ad-

TONEXTANEL

I)

justing

valve,

}ocated

near

main

------e.

USEDI

guue

burner,

should

be

closed

for

at

least

----

SLACK

--'''å°

YELLOW

~

5

minutes.

-

REO

-ñr

~

raNexrpAnat

BALANCER

>

11F

uSED)

.

Do

not

attempt

to

light

pilot

if gas

odor

is

present.

"°"'"°

P

ALARu

Light

the

unit

in accordance

with

the

instructions

av

on

the

Lighting

and

Operating

plate

fastened

to

the

boiler.

P

SILENCE

•

The

pilot

is

located

under

the

boiler,

attached

7a,

"°

to

the

right

side

of

the

main

burner.

To

reach

a

TO

1)

pilot,

remove

outer

and

inner

combustion

cham,

4

c

ber

doors.

Be

sure

toreplace

combustion

cham-

TR2

NC

I
I

ber

doors

after

lighting

unit.

nAccougLE

a

ra

SEQUENCE

OF

OPERATION

(refer

to

wiring

dia-

'

j

gram,

fig.

10).

~MRI

a

SWITCH

a3

1.

For

initial

start-up,

the

system

is

electri-

runs

e"Es"su°as

cally

energized

by

closing

the

main

dis-

u

a,s,

au

TS"'Tc"

connect

switch

after

manual

ignition

of

ΠPR2

WWGAS

I

I

pilot.

enessues

8

RA890 S

SWITCH

•

Panel

alarm

will

sound.

Move

alarm

sil-

sâ

MDICATOR

LAuP

ence

switch

on

control

box

to

the

OFF

s^rarvSuurosevALve

position'

OI

--rAcreaso

•

With

a proven

pilot

flame,

the

purge

timer

--Fiatowra'°

t

(S427B)

initiates

a

5

minute

prepurge

²

cycle.

At

the

end

of

the

prepurge

cycle,

the

TR1

contacts

open

and

TR2

contacts

aco

close.

The

alarm

silence

switch

may

now

be

moved

back

to

the

ON

position.

Alarm

F1GURE jo

should

remain

silent.

AOS

1Z9

AOS129·

13

Roenbeck

FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM

INDEX NO. 190311/2015

NYSCEF DOC. NO. 337

RECEIVED NYSCEF: 02/20/2018