The following combinations are used for a circuit with more than 4 fans configured
5
fan_1 + fan_2 + fan_3 + fan_4 + fan_5
on
on
on
on
5
4
fan_1 + fan_2 + fan_3 + fan_4
off
on
on
on
4
3
fan_1 + - + fan_3 + fan_4
off
on
off
on
3
2
fan_1 + fan_2
off
off
on
on
2
1
fan_1
off
off
off
on
1
0
0
off
off
off
off
0
total
fans
fans controlled
DO_4
DO_3
DO_2
DO_1
stage
6
fan_1+ fan_2 + fan_3 + fan_4 + fan_5 + fan_6
on
on
on
on
6
5
fan_1+ - + fan_3 + fan_4+ fan_5 + fan_6
on
on
off
on
5
4
fan_1+ fan_2 + fan_3 + fan_4
off
on
on
on
4
3
fan_1+ - + fan_3 + fan_4
off
on
off
on
3
2
fan_1+ fan_2
off
off
on
on
2
1
fan_1
off
off
off
on
1
0
-
off
off
off
off
0
total
fans
fans controlled
DO_4
DO_3
DO_2
DO_1
stage
7
fan_1 + fan_2 + fan_3 + fan_4 + fan_5 + fan_6 + fan_7
on
on
on
on
7
6
fan_1 + - + fan_3 + fan_4 + fan_5 + fan_6 + fan_7
on
on
off
on
6
5
fan_1 + fan_2 + - + - + fan_5 + fan_6 + fan_7
on
off
on
on
5
4
fan_1 + fan_2 + fan_3 + fan_4
off
on
on
on
4
3
fan_1 + - + fan_3 + fan_4
off
on
off
on
3
2
fan_1 + fan_2
off
off
on
on
2
1
fan_1
off
off
off
on
1
0
-
off
off
off
off
0
total
fans
fans controlled
DO_4
DO_3
DO_2
DO_1
stage
8
fan_1 + fan_2 + fan_3 + fan_4 + fan_5 + fan_6 + fan_7 + fan_8
on
on
on
on
8
7
fan_1 + - + fan_3 + fan_4 + fan_5 + fan_6 + fan_7 + fan_8
on
on
off
on
7
6
fan_1 + fan_2 + - + - + fan_5 + fan_6 + fan_7 + fan_8
on
off
on
on
6
5
fan_1 + - + - + - + fan_5 + fan_6 + fan_7 + fan_8
on
off
off
on
5
4
fan_1 + fan_2 + fan_3 + fan_4
off
on
on
on
4
3
fan_1 + - + fan_3 + fan_4
off
on
off
on
3
2
fan_1 + fan_2
off
off
on
on
2
1
fan_1
off
off
off
on
1
0
-
off
off
off
off
0
total
fans
fans controlled
DO_4
DO_3
DO_2
DO_1
stage
4.13 - Water Cooled Condensing Pressure Control
The control of a common water valve for both circuits is required. The water valve control will be based on the
highest saturated condensing temperature of both circuit or based on the operating circuit if the other is OFF.
Water valve PID gains can be modified in the Service menu (when unit is OFF). See section 4.2.3. They are
accessible though the table SERVICE1 and can be modified during operation.
CARRIER SA
USER'S GUIDE FOR
30GX&HX PRO_DIALOG 4 V.2
ECG-UG-02-002
Rev: Original
Page: 47/98
©
C
ARRIER
S
.
A
NOT
TO
BE
DISCLOSED
TO
PERSONS
OUTSIDE
CARRIER
ORGANIZATION
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