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CUT HAZARD
Failure
to follow this caution
may result in personal
iniury.
When
removing
access panels
or performing
maintenance
functions
inside
your
unit, be aware of sharp
sheet
metal
parts
and screws.
Although
special
care is taken
to reduce
sharp
edges to a minimum,
be extremely
careful
and wear
appropriate
protective
clothing,
safety
glasses
and gloves
when handling
parts or reaching
into the unit.
UNIT
INTRODUCTION
This unit is a small packaged
gas heat/electric
cooling
system
that
can utilize
the
comfort
of gas
heating
packaged
along
with
efficient
electric
air conditioning.
This
unit
uses
R-410A,
the
ozone
friendly
refrigerant
for cooling.
Starting or Shutting
Off Unit
NOTE:
Your combination
heating/cooling
unit is equipped
with
an automatic
direct spark ignition
and power
combustion
blower.
To start
unit gas heat:
Refer to Fig. 2 for location
of unit access panels.
Refer to Fig. 3 for
location
of gas valve.
Refer
to Fig. 4 while
proceeding
with the
following
steps.
1. Set the temperature
selector
on room thermostat
to the low-
est temperature
setting
and set system
switch to HEAT.
2. Close the external
manual
gas shutoff valve.
3. Turn off the electrical
supply
to the unit.
4. Remove
the control
access panel with a 5/16-in.
nut driver.
5. Move
the selector
switch
on the internal
gas valve
to the
OFF position
and wait 5 minutes.
6. Move the selector switch on the internal
gas valve to the ON
position.
7. Replace
the control
access panel.
8. Turn on the electrical
supply
to unit.
9. Open the external
manual
gas shutoff
valve.
10. Set the temperature
selector
on room
thermostat
slightly
above
room
temperature
to start unit.
The induced-draft
combustion
air fan will start. Main gas valve will open
and
main burners
should
ignite within
5 seconds.
If the burner
does not light within
5 seconds,
the ignition
module
will go
into
a Retry
Mode
after
a period
of approximately
22
seconds
(following
the 5-second
ignition
period).
If the
burners
do not light within
15 minutes
of the initial call for
heat, there is a lockout.
11. Set the temperature
selector
on room thermostat
to desired
setting.
FIRE AND EXPLOSION
HAZARD
Failure
to follow
this
warning
could
result
in personal
iniury,
death, and/or property
damage.
1. If the main burners
fail to light,
or the blower
fails to
start, shut down gas heating
section
and call your dealer for
service.
2. Never attempt
to manually
light the main burners
on unit
with
a match,
lighter,
or any other
flame.
If the electric
sparking
device
fails to light the main burners,
refer to the
following
shutdown
procedures,
then call your
dealer
as
soon as possible.
Filter Access
Panel For Accessory
Filter Rack
Compressor
Access
Panel
Blower Access
Panel
Control
Access
Panel
Fig. 2 - Accessory
Filter Rack Access
Panel
To shut off unit gas heat:
Al1632
FIRE,
EXPLOSION,
ELECTRICAL
SHOCK
HAZARD
Failure
to follow
this
warning
could
result
in personal
iniury, death, and/or property
damage.
Do
not turn off the electrical
power
to unit without
first
turning
off the gas supply.
NOTE:
If the unit is being
shut down
because
of a malfunction,
call your dealer as soon as possible.
Should
overheating
occur or the gas supply
fail to shut off, shut
off the
external
manual
gas valve
to the unit before
shutting
off
the electrical
supply. Do not use this unit if any part has been under
water. Immediately
call a qualified
service
technician
to inspect the
unit
and to replace
any part of the control
system
and any gas
control
which has been under water.
Refer to Fig. 5 while proceeding
with the following
steps.
1. Set
the temperature
selector
on room thermostat
to lowest
temperature
setting and set system
SWITCH
to OFF.
2. Close the external
manual
shutoff valve.
3. Turn off the electrical
power
supply to the unit.
4. Remove
the control
access panel.
5. Move
the selector
switch
on the internal
gas valve
to the
OFF position.
6. Replace
the control access panel.
To start
unit
electric
cooling:
Refer to Fig. 6 while proceeding
with the following
steps.
1. Set the temperature
selector
on room thermostat
to highest
temperature
setting and set system
SWITCH
to OFF.
2. Close
the
external
manual
shutoff
valve,
if not already
closed.
3. Turn ON the electrical
power
supply to the unit.
4. Set system
switch
to COOL.
5. Set the temperature
selector
on room thermostat
slightly be-
low the room temperature
to start unit.
To shut
off unit
electric
cooling:
Refer to Fig. 7 while proceeding
with the following
steps.
1. Set the temperature
selector
on room thermostat
to highest
temperature
setting and set system
SWITCH
to OFF.
2. Close
the
external
manual
shutoff
valve;
if not already
closed.
3. Turn off the electrical
power
supply to the unit.
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