9
5.1 SPECIFICATION OF R-410A:
Application: R-410A is not a drop-in replacement for R-22;
equipment designs
must accommodate its higher pressures. It cannot be retrofitted into R-22 condens-
ing units.
Physical Properties:
R-410A has an atmospheric boiling point of -62.9°F and its
saturaton pressure at 77°F is 224.5 psig.
Composition:
R-410A is an azeotropic mixture of 50% by weight difluoromethane
(HFC-32) and 50% by weight pentafluoroethane (HFC-125).
Pressure: The pressure of R-410A is approximately 60% (1.6 times) greater
than R-22.
Recovery and recycle equipment, pumps, hoses and the like need to
have design pressure ratings appropriate for R-410A.
Manifold sets need to range
FIGURE 2
TIE-DOWN KIT ASSEMBLY
VIEW A
(6) 1-1/2” x 1/4” CONCRETE SCREWS SNUG TO BASE PAN.
LENGTH TO PENETRATE CONCRETE 1.5” MINIMUM.
OR (6) 1-1/2” x 1/4” LAG SCREWS SNUG TO BASE PAN.
LENGTH TO PENETRATE WOOD 1.5” MINIMUM
SCREWS HAVE TO BE PLACED ON THE BASE PAN
AS SHOWN UNLESS OTHERWISE SPECIFIED.
IF ANY ACCUMULATOR IS UTILIZED,
ADD 3.5” TO THE “A” DIMENSION
AND 2” TO THE “C” DIMENSION
FOR THIS HOLE LOCATION ONLY.
CONCRETE PAD SPECIFICATIONS:
GREATER THAN OR EQUAL TO 2-1/2” THICK SOLID CONCRETE
DENSITY GREATER THAN OR EQUAL TO 144 LBS/FT
3
OR EQUIVALENT
PAD LENGTH GREATER THAN OR EQUAL TO (UNIT 2”)
PAD WIDTH GREATER THAN OR EQUAL TO (UNIT WIDTH +2)
TIE DOWN
ASSEMBLY
VIEW
13 SEER
MODELS
14.5 SEER
MODELS
L
W
A
B
C
D
E
F
TIE DOWN ASSEMBLY DIMENSIONS
30
B
27.63”
27.63”
3.5”
22.63”
3.5”
22.63”
CENTER LINE
OF UNIT
CENTER LINE
OF UNIT
36/42/48/60
B
31.63”
31.63”
5.63”
24.50”
5.63”
24.50”
CENTER LINE
OF UNIT
CENTER LINE
OF UNIT
VIEW B
(6) 1-1/2” x 1/4” CONCRETE SCREWS SNUG TO BASE PAN.
LENGTH TO PENETRATE CONCRETE 1.5” MINIMUM.
OR (6) 1-1/2” x 1/4” LAG SCREWS SNUG TO BASE PAN.
LENGTH TO PENETRATE WOOD 1.5” MINIMUM
SCREWS HAVE TO BE PLACED ON THE BASE PAN
AS SHOWN UNLESS OTHERWISE SPECIFIED.
18/24
18/24/30/36/
42/48/60
A
23.63”
23.63”
2.49”
19.77”
2.41”
19.63”
CENTER LINE
OF UNIT
CENTER LINE
OF UNIT
