Goodman CONDENSING UNITAIR CONDITIONING - Safe Refrigerant Handling; Rooftop Installations; Refrigerant Lines

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 AAA
A
CC
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  INJU R Y , EXPLOSION  OR  DEATH , PRACTICE  SAFE 
HANDLING  OF  REFRIGERANTS .
WARNING
R EFRIG ERAN T S  ARE  HEAVIER  THAN  AIR .T HEY  CAN “ PUSH  OUT ” THE 
OXYGEN  IN  YO UR  LUNGS  OR  IN  ANY  ENC LOSED  SPACE .T O  AVOID 
POSSIBLE  DIFFICULTY  IN  BREATHING  OR  DEATH :
•N
EVER  PURGE  REFRIGERANT  INTO  AN  ENC LOSED  ROOM  OR  SPACE .B Y 

LAW , ALL  REFRIGERANTS  MUST  BE  RECLAIME D .
•I
F  AN  IND OO R  LEAK  IS  SUSPECTED , THOROUGHLY  VENT I LATE  THE  AREA 

BEFORE  BEGINNING  WORK .
•L
IQU ID  REFRIGERANT  CAN  BE  VE RY  COLD .T O  AVOID  POSSIBL E  FROS T  BITE 

OR  BLINDNESS , AVO I D  CONTAC T  AND  WEAR  GLOVES  AND  GOGGLE S .I F 

LIQU ID  REFRIGERANT  DOES  CONTAC T  YO UR  SKIN  OR  EYES , SEEK  MEDICAL 

HELP  IMMEDIATELY .
•A
LWAYS  FOLL OW EPA REGULA TI ONS .N EVER  BURN  REFRIGERANT , AS 
P
OISONOUS  GAS  WILL  BE  PRODUCED .
WARNING
T O  AVOID  POSSIBLE  EXPLOSION , USE  ONLY  RETURNABLE ( NOT 
DISPO SABLE ) SERVICE  CYLINDERS  WHEN  REM OV ING  REFRIGERANT  FROM 
A  SYSTEM .
•E
NSURE  THE  CYLINDER  IS  FREE  OF  DAMAGE  WHICH  COU L D  LEA D  TO  A 

LEA K  OR  EXPLOSION .
•E
NSURE  THE  HYDRO STATIC  TEST  DATE  DOES  NOT  EXCEED 5 YEARS .
•E
NSURE  THE  PRESSURE  RATING  MEET S  OR  EXCEED S 400 PSIG .
W
HEN  IN  DOUBT , DO  NOT  USE  CYLINDER .
WARNING
T O  AVOID  POSSIBLE  EXPLOSION :
•N
EVER  APPLY  FLA ME  OR  STEAM  TO  A  REFRIGERANT  CYLINDER .I F  YO U 

MUST  HEAT  A  CYLINDER  FOR  FASTER  CHARG ING , PARTIALLY  IMMERSE  IT 

IN  WARM  WATER .
•N
EVER  FILL  A  CYLINDER  MORE  THAN 80% FULL  OF  LIQU ID  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  EQU IP MENT  USED  MUST 

BE  LISTED  OR  CERTIFIE D  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  COM PRESS OR POE OIL  FOR R‐410A UNITS  IS  EXTREMELY 
SUSCEPTIBLE  TO  MOISTURE  ABSORPTION  AND  COU L D  CAUSE 
COM PRESS OR  FAILURE .D O  NOT  LEAVE  SYSTEM  OPEN  TO  ATM OSPHERE 
ANY  LON G ER  THAN  NECESSARY  FOR  INSTALLA TIO N .
CAUTION