Carrier SUPRA 850Mt - Table 4-5 R-404 A Temperature-Pressure Chart; Suction Pressure Transducer

4
-
2
1
6
2
-
-
6
1
1
X
X
-
-
2
0
(
0
3
/
0
4
)
4.1
9.4
Suc
tion
pre
ssur
e
tra
nsdu
cer
Before installing a new suction pressure transducer it must be calibrated.
The calibratio
n will not
be performed if the
run relay is energized. This prevents the operato
r from
calib
rating the
unit with the sensor in the system. The reading of the sensor must be at atmospheric pressure (0 psig or 14.7 psi).
If the senso
r readin
g is grea
ter than 20 p
sig (34.7 p
si) or
less tha
n -
-6.7 psig
(8 psi)
it can
not be
calib
rated. Once
the
micro is calibrated, the display will readout the actual value.
a.
Turn powe
r off
and remove starter solenoi
d wire, then
let unit fail
to start.
This will de-energ
ize run relay
.
b.
Con
nec
t
wir
ing
to
new
suc
tion
pre
ssu
re
tran
sdu
cer
.
Befo
re
ins
tall
ing
suc
tio
n
pre
ssu
re
tran
sdu
cer
into
uni
t,
dis
pla
y
the suction pressure via the unit status display. While the suction pressure is being displayed press
Enter Key
for 3 seconds, the display should read “0”. If display reads “0” install suction pressure transducer into unit.
Table 4-5
R-404A
Tempera
ture-Pressure chart
T
e
m
p
e
r
a
t
u
r
e
P
r
e
s
s
u
r
e
T
e
m
p
e
r
a
t
u
r
e
P
r
e
s
s
u
r
e
_
C
_
F
Ps
ig
K
g/
cm
@
Bar
_
C
_
F
Ps
ig
Kg
/c
m
@
Bar
-
-
4
0
-
-
4
0
4
.
5
0
.
3
2
0
.
3
1
0
3
2
7
2
.
5
5
.
1
0
5
.
0
0
-
-
3
7
-
-
3
5
7
.
1
0
.
5
0
0
.
4
9
1
3
4
7
5
.
6
5
.
3
2
5
.
2
1
-
-
3
4
-
-
3
0
9
.
9
0
.
7
0
0
.
6
8
2
3
6
7
8
.
8
5
.
5
4
5
.
4
3
-
-
3
2
-
-
2
5
1
2
.
9
0
.
9
1
0
.
8
9
3
3
8
8
2
.
1
5
.
7
7
5
.
6
6
-
-
2
9
-
-
2
0
1
6
.
3
1
.
1
5
1
.
1
2
4
4
0
8
5
.
5
6
.
0
1
5
.
9
0
-
-
2
8
-
-
1
8
1
7
.
7
1
.
2
4
1
.
2
2
6
4
2
8
9
.
0
6
.
2
6
6
.
1
4
-
-
2
7
-
-
1
6
1
9
.
2
1
.
3
5
1
.
3
2
7
4
4
9
2
.
5
6
.
5
0
6
.
3
8
-
-
2
6
-
-
1
4
2
0
.
7
1
.
4
6
1
.
4
3
8
4
6
9
6
.
2
6
.
7
6
6
.
6
3
-
-
2
4
-
-
1
2
2
2
.
3
1
.
5
7
1
.
5
4
9
4
8
9
9
.
9
7
.
0
2
6
.
8
9
-
-
2
3 -
-
1
0
2
3
.
9
1
.
6
8
1
.
6
5
1
0
5
0
1
0
3
.
7
7
.
2
9
7
.
1
5
-
-
2
2
-
-
8
2
5
.
6
1
.
8
0
1
.
7
7
1
3
5
5
1
1
5
.
4
8
.
1
1
7
.
9
6
-
-
2
1
-
-
6
2
7
.
3
1
.
9
2
1
.
8
8
1
6
6
0
1
2
6
.
1
8
.
8
7
8
.
6
9
-
-
2
0
-
-
4
2
9
.
1
2
.
0
5
2
.
0
1
1
8
6
5
1
3
7
.
4
9
.
6
6
9
.
4
7
-
-
1
9
-
-
2
3
0
.
9
2
.
1
7
2
.
1
3
2
1
7
0
1
4
9
.
4
1
0
.
5
0
1
0
.
3
0
-
-
1
8
0
3
2
.
8
2
.
3
1
2
.
2
6
2
4
7
5
1
6
2
.
1
1
1
.
4
0
1
1
.
1
8
-
-
1
7
2
3
4
.
8
2
.
4
5
2
.
4
0
2
7
8
0
1
7
5
.
5
1
2
.
3
4 1
2
.
1
0
-
-
1
6
4
3
6
.
8
2
.
5
9
2
.
5
4
2
9
8
5
1
8
9
.
6
1
3
.
3
3 1
3
.
0
7
-
-
1
4
6
3
8
.
9
2
.
7
3
2
.
6
8
3
2
9
0
2
0
4
.
5
1
4
.
3
8 1
4
.
1
0
-
-
1
3
8
4
1
.
1
2
.
8
9
2
.
8
3
3
5
9
5
2
2
0
.
2
1
5
.
4
8 1
5
.
1
8
-
-
1
2
1
0
4
3
.
3
3
.
0
4
2
.
9
9
3
8
1
0
0 2
3
6
.
8
1
6
.
6
5
1
6
.
3
3
-
-
1
1
1
2
4
5
.
6
3
.
2
1
3
.
1
4
4
1
1
0
5 2
5
4
.
2
1
7
.
8
7
1
7
.
5
3
-
-
1
0
1
4
4
8
.
0
3
.
3
7
3
.
3
1
4
3
1
1
0 2
7
2
.
4
1
9
.
1
5
1
8
.
7
8
-
-
9
1
6
5
0
.
4
3
.
5
4
3
.
4
7
4
6
1
1
5 2
9
1
.
6
2
0
.
5
0
2
0
.
1
1
-
-
8
1
8
5
2
.
9
3
.
7
2
3
.
6
5
4
9
1
2
0 3
1
1
.
8
2
1
.
9
2
2
1
.
5
0
-
-
7
2
0
5
5
.
5
3
.
9
0
3
.
8
3
5
2
1
2
5 3
3
2
.
9
2
3
.
4
1
2
2
.
9
5
-
-
6
2
2
5
8
.
1
4
.
0
8
4
.
0
1
5
4
1
3
0 3
5
5
.
0
2
4
.
9
6
2
4
.
4
8
-
-
4
2
4
6
0
.
9
4
.
2
8
4
.
2
0
5
7
1
3
5 3
7
8
.
1
2
6
.
5
8
2
6
.
0
7
-
-
3
2
6
6
3
.
7
4
.
4
8
4
.
3
9
6
0
1
4
0 4
0
2
.
3
2
8
.
2
8
2
7
.
7
4
-
-
2
2
8
6
6
.
5
4
.
6
8
4
.
5
9
6
3
1
4
5 4 2
7
.
6
3
0
.
0
6
2
9
.
4
8
-
-
1
3
0
6
9
.
5
4
.
8
9
4
.
7
9
6
6
1
5
0 4
5
4
.
0
3
1
.
9
2
3
1
.
3
0