MONITOR HEATING SYSTEM
Section
3:
Operation
3-7
MANUAL
HEATER
OPERATION
Operation
of the
heater
is
under
the
direct
control
of
the
user (heater will
not
operate automatically).
The
heater
will, however, automatically respond
to
chan-
ges
in
room temperature signaled
by the
Heat Sen-
sor to
maintain
the
temperature
of the
room
at a
comfortable
level.
STEP1:
Prime
the
Heater
Turn
manual
gas
valve
at
rear
of the
heater
to the
full
ON
position.
STEP2: Select Manual Opereation
If
heater operation
is in
AUTO mode, press
the
AUTO
push-button switch
and
change Auto
to
Man-
ual
mode.
STEP3: Select Temperature Setting
After
pressing
the
TIME/TEMP
push-button switch
to
indicate
the Set
Temperature
and
Room Temperature
in the
display window, press either
the UP or
DOWN
push -button switch
to set the
digital
set
room tem-
perature indicator
to the
desired temperature,
and
then
press
the SET
push-button switch.
IMPORTANT:
In
case
no
temperature
is
set, tem-
perature will automatically
be set
at
the
initial
set
temperature.
STEP4: Turn Monitor
On
Press
the
ON/OFF push button switch
to
position
ON.
The
operation indicator
light
illuminates
to
indi-
cate
that power
has
been
applied
to the
instrument
and the
heater
is
cycled
for
manual
mode
of
opera-
tion.
INSTRUCTIONS
FOR
ECONOMY PLUS MODE
To
engage
the
economy
plus
mode,
simply
press
down
the
button
labeled "Economy Plus",
to
disen-
gage
press
again.
NOTE:
Operation
switch must
be
"ON"
and in
MAN-
UAL
mode.
This
feature minimizes
the
"ON"
and
"OFF" cycling
of
the
unit
by
allowing
it to
overshoot
the set
tempera-
ture
by 8
degrees
instead
of the
normal
4
degrees.
The
advantages
of
this feature
are to
increase
the
overall
efficiency
of the
unit
by:
1.
Decreasing electrical
consumption
by
decreasing
the
frequency
of
ignition
cycles.
2.
Reducing heat loss
during
the
prepurge
and
post-
purge cycles.
3.
Reducing inefficient combustion associated with
start
up and
shut down.
4.
Prolonging
component
life
by
decreasing
expan-
sion
and
contraction
of
internal
parts.
NOTE: This
feature
could
be
compared
to
driving
an
automobile
in
stop
and go
traffic (regular
mode)
versus highway driving
with
cruise
control engaged (Economy Plus mode).
3-8
AUTOMATIC
HEATER
OPERATION
Automatic
operation
is
established
by
programming
the
time/temperature
settings
for
specific times
for
each
day.
On a
daily basis,
a
maximum
of
four
time/temperature
settings
can be
programmed.
If,
subsequently,
it
should
be
desired
to
switch
to
manual mode
of
operation,
the
changeover
can be
made
at any
time.
Proceed
with automatic mode
of
operation
in the
fol-
lowing manner:
Stepl:
Set the Day of
Week
Press
the
"SELECT" Button,
at
which time
the
"DAY
SET"
Light
will
illuminate.
The
"Mon"
Light
will
illu-
minate
and
flash
at
this point.
Illuminate
and
flash
the
light
of the
current
day of the
week
(e.g.;
"Wed")
by
pressing
the
"UP"
or
"DOWN"
Button,
and
then press
the
"SET" Button
to
lock into
memory.
The
current
day
(e.g.; "Wed") light will illu-
minate continuously.
Step2:
Set
the
Time
Press
the
"SELECT" Button,
at
which
time
the
"CLOCK SET" Light will illuminate.
The LED
indica-
tor
in the
Display Window will show 88:88
at
this
point.
StepS:
Set
the
Hour
Press
the
"HOUR"
Button
until
the
correct hour
(either A.M.
or
P.M.) appears
in the
window.
NOTE:
The
"HOUR"
and
"MINUTE"
Buttons
can be
pressed
and
held
or
pressed
momentarily
to
change
the
time.
Step4:
Set
the
Minute
Press
the
"MINUTE" Button
until
the
correct time
ap-
pears
in the
window.
Immediately press
the
"SET" Button.
NOTE:
If the
"SET" Button
is not
pressed
within
1
minute
after
the
time set,
the
programming
will
be
cancelled.
35
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