The shown diagram is a fundamental and simplified example and
does not contain all components that are necessary in a system.
If the system you are about to install differs from the shown
diagram of a standard heating system, feel free to sketch an
outline for comparison. Adaptation of systems, see section 10.
Circu
it
ind
ica
tor
Circu
it
sel
ect
or
Shif
t
but
ton
Adj
ust
-
men
t
Con
tro
lle
r
mo
de
Th
is gui
de is a
sso
cia
ted w
ith E
CL C
ard 0
87B
487
8
Inst
alle
r:
By:
Dat
e:
Co
ntr
oll
er m
od
e
Man
ual o
per
ati
on (u
sed o
nly a
t mai
nte
nan
ce
an
d ser
vic
e)
Sch
ed
ule
d op
era
tio
n
Con
sta
nt c
om
for
t tem
per
atu
re
Con
sta
nt s
etb
ack t
em
per
atu
re
Sta
nd
by m
od
e
Arro
w but
ton
s. S
wit
ch bet
ween t
he l
in
es o
f the E
CL
Car
d.
Shi
ft b
utt
on
. Sw
itch
es b
etwe
en t
em
per
atu
res
,
chan
geo
ver p
oin
ts e
tc.
Adj
ust t
em
per
atu
res a
nd v
alu
es e
tc.
Cir
cui
t sel
ect
or f
or s
wit
chin
g bet
ween t
he ci
rcu
its
.
Saf
ety N
ote
To a
voi
d inj
ury o
f per
so
ns a
nd d
am
ag
es to t
he d
evi
ce, i
t is a
bso
lu
tely
nec
ess
ary to r
ead a
nd o
bse
rve t
hes
e in
str
uct
io
ns c
are
fu
lly
.
Nec
ess
ary a
sse
mb
ly, s
tar
t-u
p, an
d mai
nte
nan
ce w
ork m
ust b
e per
fo
rm
ed b
y
qu
alifi
ed a
nd a
uth
ori
zed p
ers
on
nel o
nly
.
Dis
pla
y in
dic
ati
on
s, c
on
tro
lle
d un
its
, L76
1
1
ON
2
ON
2
3
ON
A B C D E
A
: P1
Bla
nk = O
FF
ON = O
N
B
: M1
= Op
ens
= Clo
ses
C
: P2
Bla
nk = O
FF
ON = O
N
D
: M3
= Op
ens
= Clo
ses
E
: P3
Bla
nk = O
FF
ON = O
N
List of components:
ECL Comfort 301
S1
Outdoor temperature sensor
S2
Return temperature sensor, circuit I, heating I
S3
Flow temperature sensor, circuit I, heating I
S4
Flow temperature sensor, circuit II, heating II
S5
Flow temperature sensor, circuit III, DHW
S6
Return temperature sensor, circuit II, heating II
S7
Primary flow temperature sensor
P1
Circulation pump, circuit I, heating I
P2
Circulation pump, circuit II, heating II
P3
Circulation pump, circuit III, DHW
M1
Motorized control valve, circuit I, heating I
M2
Motorized control valve, circuit II, heating II
M3
Motorized control valve, circuit III, DHW
