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Installation and operation manual
42
125A7V1B
VRV IV System indoor unit
4P325971-1B – 2012.07
14.3. Electrical components box
a
A1P: main PCB
b
A3P: control PCB
c
A4P: optional demand PCB
d
X2M: terminal strip
e
X1M: terminal strip
14.4. Operation range HXY(080/125)
Cooling operation
a
Outdoor Ta (°CDB/WB)
b
Indoor (LWE°C)
c
Pull down area
d
Normal operation range
(*)
Depending on operation conditions and only possible after field setting
activation (influence on DX cooling (cold draft) and total efficiency).
Heating operation
a
Outdoor Ta (°CDB/WB)
b
Indoor (LWC°C)
c
Warming up zone
d
Normal operation range
14.5. ESP curve
ESP
External Static Pressure
Flow
Waterflow through the unit
Unit ESP at 4000 rpm (
∆
T=5°C)
Unit ESP at 3800 rpm (
∆
T=8°C)
Maximum ESP if
∆
T=5°C (heating nominal)
Maximum ESP if
∆
T=5°C (cooling nominal)
NOTICE
When LWE is selected <18°C; optional drain pan has to be
used for Hydrobox.
a
c
b
d
e
a
e
c
d
b
10/8
(5*) 10
20
25
35/30
43/(37)
20/16
7/6
2/1
-7/-8
-20/X
45
25
a
b
5
c
d
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
15
17.5
20
22.5
25
27.5
30
32.5
35
37.5
40
E
S
P (kP
a
)
Flow (l/min)
Содержание HXY080A7V1B
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