A.O. Smith 28 30 50 60 service manual Functioning of the appliance, Introduction

gis

2

2.1Introduction

2.2Functional description of the appliance

Legend

a plastic top cover

b hot water outlet

c electrical connection block

d ThermoControl

e pressure switch

f control panel

g temperature sensor T1

h combustion chamber

i anode

j tank

k heat exchanger

l inspection and cleaning

opening

m temperature sensor T2

n cold water inlet

o drain valve

p gas control

q burner

r fan

s air supply hose

t glow igniter

u ionisation rod

v chimney pipe

w siphon

Introduction

Functioning of the appliance

Topics covered in this chapter:

•Functional description of the appliance;

•The appliance’s heating cycle;

•Protection for the appliance;

•Safety of the installation.

Figure 2.1 shows a cut-away view of the appliance.

a	p
b	q
c	r
d	s
e
f
g	t
	u
h
i	v
j
k

l

m

w

x PU insulation layer

n

o

x

IMD-0070

Figure 2.1 Cut-away view of the appliance

Release R.1.3 UK 13