Tabla de contenido
Publicidad
Idiomas disponibles
Idiomas disponibles
charge table for Adjusting charge from suction pipe size
(c)-2
Actual Line Set
Length (ft.)
Suction Line
Diameter (inch)
12-15
20-25
30-40
40-50
50-60
60-70
70-80
80-90
90-100
3.5-5.0 Ton
Adjust refrigerant (oz.)
7/8"
1 1/8"
2
–
4
–
6
–
9
–
11
–
12
–
14
–
16
–
18
–
c
a
c
onnect
Ir
ondItIoner to
open the lIquId valve fIrSt!
I
f the SuctIon ServIce valve IS opened fIrSt
preSSor may Be draWn Into the Indoor coIl
ant floW and affectIng operatIon of the SyStem
poSSIBle refrIgerant leak!
t
o avoId a poSSIBle refrIgerant leak
untIl the top of the Stem IS
e
nSure valveS are open and addItIonal charge IS added per
chart Before applyIng poWer
Charge additional refrigerant calculated by STEP formula &
table from liquid service valve. (NOT from suction side.)
When opening service valves, open each valve only until the
top of the stem is 1/8" from the valve. To avoid loss of refriger-
ant, DO NOT apply pressure to the retainer. When opening
valves without a retainer, remove service valve cap and insert
a hex wrench into the valve stem and back out the stem by
turning the hex wrench counterclockwise.
After the refrigerant charge has bled into the system, open
the liquid service valve. The service valve cap is the second-
ary seal for the valves and must be properly tightened to
prevent leaks. Make sure cap is clean and apply refrigerant
oil to threads and sealing surface on inside of cap. Tighten
cap finger-tight and then tighten additional 1/6 of a turn to
properly seat the sealing surfaces.
Break vacuum by fully opening liquid and suction base valve.
note: Units have front seating valves. These are not back-
seating valves. It is not necessary to force the stem tightly
against the rolled lip.
e
quIvalent length calculatIon
note: The following table lists the equivalent length gained
from adding bends to the suction line. Properly size the suc-
tion line to minimize capacity loss.
Type of Elbow Fitting
90° short radius
90° long radius
45° radius
unit: inch
13
S
yStem
cAUtion
,
oIl from the com
,
reStrIctIng refrIger
.
cAUtion
,
open the ServIce valveS
1/8"
.
from the retaIner
cAUtion
.
Inside Diameter
3/4
7/8
1 1/8
1.7
2
2.3
1.5
1.7
1.6
0.7
0.8
-
-
1
Publicidad
Tabla de contenido
