2
I
NSTALLATION
C
LEARANCES
Special consideration must be given to location of the con-
densing unit(s) in regard to structures, obstructions, other units,
and any/all other factors that may interfere with air circulation.
Where possible, the top of the unit should be completely unob-
structed; however, if vertical conditions require placement be-
neath an obstruction
there should be a minimum of 60
inches between the top of the unit and the obstruction(s).
The specified dimensions meet requirements for air circulation
only. Consult all appropriate regulatory codes prior to deter-
mining final clearances.
Another important consideration in selecting a location for the
unit(s) is the angle to obstructions. Either side adjacent the
valves can be placed toward the structure provided the side
away from the structure maintains minimum service clearance.
Corner installations are strongly discouraged.
OK!
OK!
AA
AA
A
A
C
C
C
C
OK !
OK!
OK !
OK!
NOT
RECOMMENDED
AA
AA
AA
AA
AA
B
B
B
B
Model Type
A
B
C
AA
Residential
10"
10"
18"
20"
Light Commercial
12"
12"
18"
24"
Minimum Airflow Clearance
This unit can be located at ground floor level or on flat roofs. At
ground floor level, the unit must be on a solid, level foundation
that will not shift or settle. To reduce the possibility of sound
transmission, the foundation slab should not be in contact with
or be an integral part of the building foundation. Ensure the
foundation is sufficient to support the unit. A concrete slab
raised above ground level provides a suitable base.
R
OOFTOP
I
NSTALLATIONS
If it is necessary to install this unit on a roof structure, ensure
the roof structure can support the weight and that proper con-
sideration is given to the weather-tight integrity of the roof. Since
the unit can vibrate during operation, sound vibration transmis-
sion should be considered when installing the unit. Vibration
absorbing pads or springs can be installed between the con-
densing unit legs or frame and the roof mounting assembly to
reduce noise vibration.
S
AFE
R
EFRIGERANT
H
ANDLING
While these items will not cover every conceivable situation,
they should serve as a useful guide.
T
O
AVOID
POSSIBLE
INJURY
,
EXPLOSION
OR
DEATH
,
PRACTICE
SAFE
HANDLING
OF
REFRIGERANTS
.
WARNING
R
EFRIGERANTS
ARE
HEAVIER
THAN
AIR
.
T
HEY
CAN
“
PUSH
OUT
”
THE
OXYGEN
IN
YOUR
LUNGS
OR
IN
ANY
ENCLOSED
SPACE
.
T
O
AVOID
POSSIBLE
DIFFICULTY
IN
BREATHING
OR
DEATH
:
•
N
EVER
PURGE
REFRIGERANT
INTO
AN
ENCLOSED
ROOM
OR
SPACE
.
B
Y
LAW
,
ALL
REFRIGERANTS
MUST
BE
RECLAIMED
.
•
I
F
AN
INDOOR
LEAK
IS
SUSPECTED
,
THOROUGHLY
VENTILATE
THE
AREA
BEFORE
BEGINNING
WORK
.
•
L
IQUID
REFRIGERANT
CAN
BE
VERY
COLD
.
T
O
AVOID
POSSIBLE
FROST
BITE
OR
BLINDNESS
,
AVOID
CONTACT
AND
WEAR
GLOVES
AND
GOGGLES
.
I
F
LIQUID
REFRIGERANT
DOES
CONTACT
YOUR
SKIN
OR
EYES
,
SEEK
MEDICAL
HELP
IMMEDIATELY
.
•
A
LWAYS
FOLLOW
EPA
REGULATIONS
.
N
EVER
BURN
REFRIGERANT
,
AS
P
OISONOUS
GAS
WILL
BE
PRODUCED
.
WARNING
T
O
AVOID
POSSIBLE
EXPLOSION
,
USE
ONLY
RETURNABLE
(
NOT
DISPOSABLE
)
SERVICE
CYLINDERS
WHEN
REMOVING
REFRIGERANT
FROM
A
SYSTEM
.
•
E
NSURE
THE
CYLINDER
IS
FREE
OF
DAMAGE
WHICH
COULD
LEAD
TO
A
LEAK
OR
EXPLOSION
.
•
E
NSURE
THE
HYDROSTATIC
TEST
DATE
DOES
NOT
EXCEED
5
YEARS
.
•
E
NSURE
THE
PRESSURE
RATING
MEETS
OR
EXCEEDS
400
PSIG
.
W
HEN
IN
DOUBT
,
DO
NOT
USE
CYLINDER
.
WARNING
T
O
AVOID
POSSIBLE
EXPLOSION
:
•
N
EVER
APPLY
FLAME
OR
STEAM
TO
A
REFRIGERANT
CYLINDER
.
I
F
YOU
MUST
HEAT
A
CYLINDER
FOR
FASTER
CHARGING
,
PARTIALLY
IMMERSE
IT
IN
WARM
WATER
.
•
N
EVER
FILL
A
CYLINDER
MORE
THAN
80%
FULL
OF
LIQUID
REFRIGERANT
.
•
N
EVER
ADD
ANYTHING
OTHER
THAN
R
‐
22
TO
AN
R
‐
22
CYLINDER
OR
R
‐
410A
TO
AN
R
‐
410A
CYLINDER
.
T
HE
SERVICE
EQUIPMENT
USED
MUST
BE
LISTED
OR
CERTIFIED
FOR
THE
TYPE
OF
REFRIGERANT
USED
.
•
S
TORE
CYLINDERS
IN
A
COOL
,
DRY
PLACE
.
N
EVER
USE
A
CYLINDER
AS
A
P
LATFORM
OR
A
ROLLER
.
WARNING
R
EFRIGERANT
L
INES
T
HE
COMPRESSOR
POE
OIL
FOR
R
‐
410A
UNITS
IS
EXTREMELY
SUSCEPTIBLE
TO
MOISTURE
ABSORPTION
AND
COULD
CAUSE
COMPRESSOR
FAILURE
.
D
O
NOT
LEAVE
SYSTEM
OPEN
TO
ATMOSPHERE
ANY
LONGER
THAN
NECESSARY
FOR
INSTALLATION
.
CAUTION
