7-‐
HOW
T O
L OCK
T HE
C OMMANDS:
Irrespective
o f
t he
c hosen
o perational
m ode,
y ou
c an
l ock
t he
c ontrol
u nit
k eypad.
T o
d o
t his:
I f
y ou
have
c hosen
t he
e conomy
m ode,
f or
e xample,
p ress
t he
+
a nd
-‐
b uttons
a t
t he
s ame
t ime
f or
a bout
3
sec.
The
f lashing
d isplay
s hows
y ou
w hether
t he
k eypad
i s
l ocked.
If
y ou
p ress
o n
a ny
b utton
o f
t he
k eypad,
t he
d isplay
w ill
s how
t he
' FF
I mpossible
t o
p erform
y our
request'
s ymbol.
To
d elete
t he
k eypad
l ocking,
p ress
t he
+
a nd
-‐
b uttons
a gain
f or
3
s econds.
8-‐'PROG'
O PERATING
M ODE:
This
m ode
e nables
t he
a utomatic
o peration
o f
y our
h eating
d evice
b y
m eans
o f
a
p rogramming
control
u nit
o r
a n
i ndividual
p rogrammer.
T o
d o
t his:
P ress
t he
M ODE
b utton
u ntil
t he
P rog
l ight
switches
o n.
51.