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6
U
s
e
r
In
s
tr
u
c
tio
n
s
Ov
erh
ea
tT
he
rm
os
ta
t
Y o
ur
bo
ile
ri
sf
itt
ed
wit
ha
sa
fe
ty
ov
erh
ea
tt
he
rm
os
ta
tw
hic
hw
ill
au
to
ma
tic
ally
sw
itc
ho
ff
th
eb
oile
ri
nt
he
ca
se
of
ac
on
tro
lm
alfu
nc
tio
nc
au
sin
g
ov
erh
ea
tin
g.
If
yo
ur
bo
ile
rg
oe
so
ff
an
d
yo
ut
ry
to
lig
ht
it
bu
tn
oth
in
gh
ap
pe
ns
,
an
dt
he
'L
oc
k-o
ut'
ne
on
on
th
ec
on
tro
l
pa
ne
li
sn
ot
lit
,t
he
ov
erh
ea
tt
he
rm
os
ta
t
ha
sp
ro
ba
bly
op
era
te
d.
Th
eb
oile
rw
ill
no
tl
ig
ht
un
til
th
et
he
rm
os
ta
ti
sr
es
et.
T o
re
se
t,
un
sc
re
wt
he
sm
all
pla
sti
cc
ap
ma
rk
ed
re
se
t(
se
eF
ig
ure
1),
pre
ss
th
e
bu
tto
nt
he
nr
ep
la
ce
th
ec
ap
.
If
th
is
co
nd
iti
on
co
nti
nu
ally
re
pe
ats
,
co
nta
ct
yo
ur
Se
rv
ic
ee
ng
in
ee
r .
Re
mo
te
Pro
gra
mm
er
Re
fe
rt
ot
he
in
str
uc
tio
ns
su
pp
lie
dw
ith
yo
ur
pa
rti
cu
la
rs
ys
te
mp
ro
gra
mm
er.
Ve
nti
la
tio
n
Alw
ay
se
ns
ure
th
at
th
eb
oile
rh
as
ad
eq
ua
te
ve
nti
la
tio
n.
An
yv
en
tila
tio
n
op
en
in
gs
pro
vid
ed
by
th
eI
ns
ta
lle
rm
us
t
no
tb
eo
bs
tru
cte
d.
Pe
rio
dic
ally
ch
ec
kt
ha
tt
he
ya
re
cle
ar.
Do
no
ta
tte
mp
tt
o'
bo
xi
n'
th
eb
oile
ro
r
bu
ild
ac
om
pa
rtm
en
ta
ro
un
di
tb
efo
re
co
ns
ult
in
gy
ou
rI
ns
ta
lle
r .
Do
no
tp
la
ce
an
yc
om
bu
sti
ble
ma
te
ria
l
aro
un
do
ro
nt
he
bo
ile
ro
rf
lu
ep
ip
e
Flu
eT
erm
in
al
Th
ef
lu
et
erm
in
al,
wh
ic
hm
ay
be
on
th
e
ou
ts
id
ew
all
mu
st
no
tb
eo
bs
tru
cte
do
r
da
ma
ge
d.
In
se
ve
re
co
nd
iti
on
sc
he
ck
th
at
th
e
te
rm
in
al
do
es
no
tb
ec
om
eb
lo
ck
ed
by
sn
ow
.
Fro
st
Pro
te
cti
on
Y o
ur
In
sta
lle
rm
ay
ha
ve
fit
te
da
fro
st
th
erm
os
ta
t.
If
no
t,
an
dy
ou
are
lik
ely
to
be
aw
ay
fo
ra
sh
ort
tim
e,
le
av
et
he
bo
ile
ro
nw
ith
th
eb
oile
rt
he
rm
os
ta
ts
et
at
al
ow
se
tti
ng
.F
or
lo
ng
er
pe
rio
ds
th
e
bo
ile
ra
nd
sy
ste
ms
ho
uld
be
dra
in
ed
.
Co
nta
ct
yo
ur
Se
rv
ic
ee
ng
in
ee
rf
or
dra
in
in
ga
nd
fill
in
gt
he
sy
ste
m.
Cle
an
in
ga
nd
Se
rv
ic
in
g
Lig
htl
yw
ip
eo
ve
rt
he
ca
se
wit
ha
da
mp
clo
th
an
da
lit
tle
de
te
rg
en
t.
Do
no
tu
se
ab
ra
siv
ep
ad
so
rc
le
an
ers
.
Y o
um
us
th
av
ey
ou
rb
oile
rs
erv
ic
ed
at
le
as
to
nc
ea
ye
ar
to
en
su
re
sa
fe
an
d
eff
ic
ie
nt
op
era
tio
n.
Co
nta
ct
yo
ur
Se
rv
ic
e
en
gin
ee
rf
or
fu
rth
er
de
ta
ils
.
Fa
ilu
re
of
Ele
ctr
ic
ity
Su
pp
ly
If
th
ee
le
ctr
ic
ity
su
pp
ly
fa
ils
,t
he
bo
ile
r
will
no
to
pe
ra
te
.I
ts
ho
uld
re
lig
ht
au
to
ma
tic
ally
wh
en
th
es
up
ply
is
re
sto
re
d.
If
ar
em
ote
pro
gra
mm
er
is
co
nn
ec
te
d,
it
ma
yr
eta
in
th
et
im
es
ett
in
gs
fo
rs
om
e
tim
ea
nd
ma
yn
ot
ha
ve
to
be
re
se
tt
ot
he
co
rre
ct
tim
eo
fd
ay
wh
en
th
es
up
ply
is
re
sto
re
d.
Re
fe
rt
ot
he
in
str
uc
tio
ns
su
pp
lie
dw
ith
yo
ur
pro
gra
mm
er
fo
r
fu
rth
er
de
ta
ils
.I
tis
re
co
mm
en
de
dt
ha
t
yo
uc
he
ck
th
et
im
es
ett
in
gs
aft
er
a
po
we
rf
ailu
re
ha
so
cc
urr
ed
.
Ele
ctr
ic
ity
Su
pp
ly
Th
eb
oile
rr
eq
uir
es
a2
30
/2
40
V~
50
Hz
su
pp
ly.
It
mu
st
be
pro
te
cte
db
ya
5A
mp
fu
se
.
Th
ee
le
ctr
ic
ity
co
nn
ec
tio
ns
to
th
e
bo
ile
rm
us
tb
ee
art
he
d.
Se
ale
dC
en
tra
lH
ea
tin
g
Sy
ste
m
If
yo
ur
bo
ile
ris
op
era
tin
go
na
se
ale
d
he
ati
ng
sys
te
m,
th
ein
sta
lle
rw
ill
ha
ve
ad
ju
ste
dt
he
pre
ss
ure
in
th
es
ys
te
ma
nd
sh
ou
ld
ha
ve
to
ld
yo
u(
or
se
tit
on
th
e
pre
ss
ure
ga
ug
e)t
he
sys
te
mp
re
ss
ure
wh
en
co
ld
.T
his
is
no
rm
ally
be
tw
ee
n0
.5
an
d1
.0
ba
r ,w
hic
hw
ill
in
cre
as
es
lig
htl
y
wh
en
ho
t.
If
th
ep
re
ss
ure
(w
he
nc
old
)is
be
lo
wt
he
se
tp
re
ss
ure
me
nti
on
ed
ab
ove
,y
ou
ca
nr
ep
re
ss
uri
ze
th
es
ys
te
m.
If
th
is
is
fre
qu
en
tly
re
qu
ire
d,
as
ky
ou
r
In
sta
lle
ro
rS
erv
ic
ee
ng
in
ee
rt
oc
he
ck
th
e
he
ati
ng
sys
te
mf
or
le
ak
sa
nd
to
ch
ec
k
th
ee
xp
an
sio
nv
es
se
la
ir
ch
arg
e.
Th
eb
oile
ro
rs
ys
te
mw
ill
be
fit
te
dw
ith
an
au
to
ma
tic
air
ve
nt
to
re
mo
ve
air
fro
m
th
es
ys
te
m.
An
ya
ir
tra
pp
ed
in
th
e
ra
dia
to
rs
sh
ou
ld
be
re
mo
ve
db
yv
en
tin
g
th
er
ad
ia
to
rs
us
in
gt
he
ve
nt
sc
re
wa
tt
he
to
po
fe
ac
hr
ad
ia
to
r .
On
ly
ve
nt
ar
ad
ia
to
r
if
th
et
op
is
co
ol
an
dt
he
bo
tto
mi
sh
ot.
Ex
ce
ss
iv
ev
en
tin
gw
ill
re
du
ce
th
e
sy
ste
mp
re
ss
ure
,s
oo
nly
ve
nt
wh
en
ne
ce
ss
ary
an
dc
he
ck
th
es
ys
te
m
pre
ss
ure
as
me
nti
on
ed
ab
ov
e.
Re
-p
re
ss
uri
se
th
es
ys
te
mi
fn
ec
es
sa
ry.
Th
es
ea
le
ds
ys
te
mi
sf
itt
ed
wit
ha
sa
fe
ty
va
lv
et
or
ele
as
ee
xc
es
s
pre
ss
ure
.I
fw
ate
ro
rs
te
am
is
em
itt
ed
fro
mt
he
en
do
ft
he
sa
fe
ty
va
lv
e
dis
ch
arg
ep
ip
e,
sw
itc
ho
ff
th
eb
oil
er
an
dc
on
ta
ct
yo
ur
In
sta
lle
ro
rS
erv
ic
e
en
gin
ee
r .
!
WA
RN
IN
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