2
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury,dea th and/or property damage.
Refer to the User’s Information Manual provided
withthis unit for more details.
Do not store or use gasoline or other flammable
vaporsand liquids in the vicinity of this or any other
appliance.
What to doi f yousmel l gas:
DONOT try to light any appliance.
DO NOT touch any electrical switch, or use any
phone in your building.
IMMEDIATELY call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
If you cannot reach your gas supplier, call the fire
department.
!WARNING
ELECTRICALOPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Before performing service or maintenance operations
on unit, turn off main power switch to unit. Electrical
shock and rotating equipment could cause injury.
!WARNING
ELECTRICALOPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits may use
multiple disconnects. Check convenience outlet for
power status before opening unit for service. Locate
its disconnect switch, if appropriate, and open it.
Tag--out this switch, if necessary.
!WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury,death and/or equipment damage.
Puron (R--410A)refrigerant systems opera te at higher
pressures than standard R--22 systems. Do not use
R--22 service equipment or components on Puron
refrigerant equipment.
!WARNING
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury or death.
Disconnect gas piping from unit when pressure testing
at pressure greater than 0.5 psig. Pressures greater
than 0.5 psig will causegas valve damage resulting in
hazardous condition. If gas valve is subjected to
pressure greater than 0.5 psig, it must be replaced
before use. When pressure testing field-suppliedgas
piping at pressures of 0.5 psig or less, a unit connected
to such piping must be isolated by closing the manual
gas valve(s).
!WARNING
UNIT ARRANGEMENT AND ACCESS

General

Fig. 1 and Fig. 2 show general unit arrangement and
access locations.
FILTERACCESS PANEL
OUTDOOR-AIROPENING AND
INDOORCOIL ACCESS PANEL
COMPRESSOR
ACCESSPANEL (04-07 only)
C08449
Fig. 1 --Typical AccessPanel Locations
BLOWER
ACCESS
PANEL
CONTROL BOX
COMPRESSOR
(08-12 only)
C08450
Fig. 2 --Blower Access Panel Location

RoutineMaintenance

These items should be part of a routine maintenance
program, to be checked every month or two, until a
specific schedule for each can be identified for this
installation:
48TC