12 Unit installation
Installation and operation manual
14
LRYELRNUN5A7Y1
CO
₂
Conveni-Pack outdoor unit and capacity up unit
4P605461-1 – 2020.04
(a)
For occupied spaces with a floor area exceeding 250 m
2
, use
250 m
2
as the floor area for determination of the room volume
(
Example:
even if the room area is 300 m
2
and the room height
is 2.5 m, calculate the room volume as 250 m
2
×2.5 m=625 m
3
)
Example:
Total refrigerant change in the system is 45 kg and room
volume is 300 m
3
. 45/300=0.15, which is >RCL (0.072) and <QLAV
(0.18), therefore install at least 2 appropriate measures in the room.
A (kg)
B (m³)
0
0
100 150
50
200 250
300
350
450
550
400
500
600 650 700 750 800 850 900 950 1000
5
10
15
20
25
30
35
40
45
50
55
60
65
70
d
b
a
RCL
QLAV
QLMV
c
12‒2 Example graph for calculation
A
Refrigerant charge limit
B
Room volume
a
Installation is not allowed
b
2 appropriate measures required
c
1 appropriate measure required
d
No measure required
INFORMATION
Even if there is no refrigerating system on the lowest floor,
where the largest system charge (kg) in the building
divided by total volume of the lowest floor (m
3
) exceed the
value for QLMV, provide a mechanical ventilation in
accordance with EN 378-3:2016.
12.2
Opening and closing the unit
12.2.1
To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
To gain access to the unit, front plates need to be opened as follows:
1
Remove the screws of the small front plates:
a
b
7×
2×
a
Outdoor unit
b
Capacity up unit
2
Remove the front panels:
a
b
4×
12
×
a
Outdoor unit
b
Capacity up unit
3
Remove the small front plates:
Outdoor unit:
1
2
4
3
2×
1×
Capacity up unit:
1
2
1×
Once the front plates open, the electrical component box can be
accessed. See
"12.2.2 To open the electrical component box of the
For service purposes, the pushbuttons on the main PCB (located
behind the middle front panel) need to be accessed. To access
these pushbuttons, the electrical component box cover does not
need to be opened. See
"16.1.2 To access the field setting
12.2.2
To open the electrical component box of
the outdoor unit
NOTICE
Do NOT apply excessive force when opening the
electronic component box cover. Excessive force can
deform the cover, resulting in entering of water to cause
equipment failure.
Electrical component boxes of the outdoor unit
The electrical component boxes behind the left, middle and right
front panel are all opened in the same way. The main switchbox is
installed behind the middle panel.
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