Atwood MPD 93755 Instalacja, obsługa i konserwacja - Strona 5

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Również dla Atwood MPD 93755: Instrukcja instalacji (9 strony)

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PREVEI{TATIVE

MAI NTEI{AI{GE

Spiders, mud wasps, and other insects can build nests

the burner

tube. This

will

cause poor combustion, delayed ignition or ignition

outside combusiion

tube.

Listen for a change in burner sounds or

flame appearance from a hard blue flame

soft

lazy

flame or

one

that

very yellow. These

are

indications of

obstruction

in burner

tube

(rrc

4-C). lnspect and clean on a regular

basis.

a. Remove air shutter screw

(rro

4-A) and slide

air

shutter

(rrc 4-B)

dorvn burner tube.

Run

flexible wire brush down burner

tube

(no 4-D) until

visible at end

burner

tube.

c. Vacuum burner where it enters combustion tube.

Retum

air

shutter

original position and replace screw.

The

orilice,

burner tube

and

shutter must

aligned

that the shutter is nol

binding

the air tube.

HOW

CLEAN

PIL0T M0DELS

rte

Check main burner orifice and

pilot

assembly for contamination

(dirt, spider webs,

etc.).

2. Clean main burner

tube

with small

brush.

3. Main burner adjustment

open air shutter 1/4

way.

4. Low pilot flame. Check

for

contamination

if clean

have

the

pilot

orifice replaced.

HOW TO CLEAN

ELECTRONIC

IGNITION

MODEL

Check main burner orifice.

2. Clean and

ad.just

main

burner.

3. Main burner and valve manifold must align with each other

4. Check electrode for cracked porcelain

(rrc 4-E).

Check electrode

for

proper gap

1/8"

between electrode

and

ground.

module board functions intermittently. remove board and

clean

terminal block

with

pencil eraser

(nc

3-H).

WATER

HEATER

TANK

CARE

WARNING

SCALDING INJURY

Turn

off water heater and allow time for water

to cool

before

inq drain pluq to flush

tank.

wtl{TERtZtl{G (FrUSHrilG}

rI{STRUCTT0ilS

To insure

the best performance of your water heater and add to

the

life

of the tank, periodically drain and flush the water

heater

tank.

Before

long term storage or freezing weather drain and flush the tank.

1. Turn

off main water supply

(the

pump or water supply (the pump or

water hook up

source).

Drain

Water

Heater Tank

by removing the drain plug- lf the water

flows sporadically or trickles instead of a steady stream of water, we

recommend the

following

action:

first

open the

Pressure

Temperature

Relief Valve

allow air tnto the tank and secondly,

take a small gauge wire or coat hanger and poke through the

drain

opening

eliminate any obstructions.

3. After draining the tank, because of the placement of

the

Drain

Plug,

approximately

two

quarts of water

will

remain

the tank. This water

contains most of the harmful corrosive particles.

To remove

these

harmful corrosive particles flush the tank with either air or

water.

Whether using air or water pressure,

may be applied through the

inlet or outlet on

the

rear

of the tank or the

Pressure Temperature

Relief Valve.

(lf using

the

Pressure

Temperature

Relief Valve

the

Support

Flange

must be

removed).

The pressure will force out the

remaining water and the corrosive pafticles.

lf you

use

water pressure, pump fresh water into the tank

with

the

assistance of the

on-board

pump or

use

external water for

seconds

allow the fresh water

agitate the stagnant water

the

bottom of the tank and force deposits through the

drain

opening. Continue repeating adding water and draining until the

particles have been cleared from the water remaining

the tank.

Replace

the

Drain Plug

and

the

Pressure Temperature Relieve

Valve.

the approximately

two

quarts

water

remining in

the tank

after

draining

will

not cause damage

the

tank

should freezing occur.

PRESSURE.IEMPERAIUBE

RETIEF

UATVE

WARNING

EXPLOSION

Do not place

valve, plug or reducing coupling on

outlet

part of

pressure-temperature

relief valve.

Pressure

Temperature

Relief Valve,

dripping while the water heater

running,

DOES NOT

mean

defective. During normal expansion of

water, as

is heated

the closed water system of a

recreation

vehicle, the

Pressure

Temperature

Relief Valve

will sometimes drip.

The

Atwood

water heater tank is designed

with

an internal

air

gap at the

top

of the tank

reduce

the

possibility

of dripping.

time, the

expanding water will absorb this air and

must be restored.

Due

variations

water quality,

the

Pressure

Temperture

Relief Valve may

have a

shorter life and may need replacement within the water

heater

warranty period. lf corrosion

detected, it

will

not be covered under

warranty.

wonr,nc

SCALDING INJURY

Turn

off water heater before opening pressure-temperature

relief

valve

establish air space. Storage water must be cool.

TO REPLACE THE

AIR

GAP FOLLOW THESE

STEPS:

1. Turn

off

main water supply (the pump or water hook up

source).

2. Let water

cool

or let run until cool.

3. Open the hot water faucet closest to the water

heater.

4. Pull handle

pressure temperature

relief

valve straight out

and

allow water

to flow

until

stops.

Allow pressure temperature relief

valve

snap shut; close faucet;

turn

on water

supply.

6. Turn

on water heater and test.

least once

year manually operate pressure-temperature

relief

valve (rrc

16).

When pressure-temperature

relief

valve discharges again, repeat above

procedure. For a permanent solution,

recommend one of the following:

lnstall a pressure

relief

valve

cold

water inlet

line

water

heater

and attach a drain

line

from valve

outside

coach.

Set

relieve

100-125

PSl.

lnstall

diaphragm-type expansion tank

cold water inlet

line. Tank

should be sized to allow for expansion of approximately

15 oz.

of water

and pre-charged to

a pressure

equal to water supply

pressure.

These

devices can be obtained from

plumbing contractor or service

center.

FTUSHII{8

REMOVE

UNPIEASAI{T

ODOR

rotten egg odor

(hydrogen

sulfide)

may

be produced when the

electro

galvanic action of the cladding material

releases

hydrogen from the

water. if sulfur is present

the water supply the

two

will combine

and

produce an unpleasant

smell.

Turn

off

main

water supply.

Drain

the water

heater

tank and

reinstall

drain plug.

Remove

the pressure-temperature

relief

valve. Mix

solution of

parts white vinegar to

two

parts

water.

With

funnel,

carefully pour solution into

tank.

2. Cycle water

heater

with the above solution, letting

run

under

normal operation 4-5 times.

Remove

the drain plug and thoroughly drain

all

water from the

tank.

Flush

the water

heater

remove any

sediment.

You may

flush the

tank

with

air

pressure

or fresh water. pressure may

applied

through either the inlet or outlet

Valves on

the

rear

of the tank or

through the pressure-temperature

relief valve

coupling located on the

front

the

unit.

TO FLUSH

TAN(

WITH

AIR

PRESSURE:

lnsed your air

pressure

through the pressure-temperature

relief

valve coupling. With the drain

valve

open,

ihe

air

pressure

will force

the

remaining

water out of the

unit.

llush lank with water

pressure:

Fresh

water should be pumped into the tank

with

either

the

onboard pump or external water

pressure.

Continue this flushing

process for approximately 5 minutes, allowing the fresh water to

agitate the stagnant water on the bottom of the tank and forcing

the deposits through the drain

opening.

Replace

drain plug and pressure-temperature

relief valve.

Refill

tank with fresh water

that

contains no

sulphur.

The

Atwood water heater

designed for

use in

a recreation vehicle. lf

you

use

your

vehicle

frequently or

for

long periods of time, flushing the

water

heater several

times

year

will

prolong

the

life of the storage tank.