Specifications
MONITOR
HEATING
SYSTEMS
Section
3:
Operation
3-8
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.
NOTE:
Resetting
the
Fuel Constant Level
Valve
is
necessary
only
if the
heater
is
being
started
for
the
first
time,
hasn't been used
for an ex-
tended
period
of
time,
or if
tank
has run
empty.
If
priming
is
unnecessary skip
to
step
2.
STEP1:
Prime
the
Heater
Gently
press
and
release
the
Fuel Constant
Valve
Reset
button
two or
three times.
Level
STEP2:
Select Manual Opereation
If
heater operation
is in
AUTO mode, press
the
AUTO
push-button switch
and
change Auto
to
Manual
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).
3-9
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-
minated
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
1
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.
Step3:
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
Iminute
after
the
time
set,
the
programming
will
be
cancelled.
34