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39
AHU Kit – Installation Instructions –
11/2021
Product description
3
Technical data and limitations – ECOi and ECO G systems –
R410A
(cont.)
AHU Kit HP
50¹
60¹
70¹
80¹
AHU Kit model
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M) +
PAW-280MAH2(L/M)
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M)
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M) +
PAW-280MAH2(L/M)
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M) +
PAW-560MAH2(L/M)
Nominal cooling capacity
kW
140.0
168.0
196.0
224.0
Nominal heating capacity
kW
155.0
189.0
219.0
252.0
Air volume flow (Cooling)
Min
m³/h
17,500
21,000
24,000
28,000
Max
m³/h
25,000
30,000
35,000
40,000
AHU DX coil heat exchanger volume Min
dm
3
14.0
16.8
19.6
22.4
Max
dm
3
26.8
32.1
37.5
42.8
Bypass factor
0.9 (recommended)
0.9 (recommended)
0.9 (recommended)
0.9 (recommended)
Piping length
Min / Max
m
10 / 100
10 / 100
10 / 100
10 / 100
Max. branch pipe length
m
12
12
12
12
Max.branch pipe length difference after first branch
m
10
10
10
10
Elevation difference (in/out)
Max
m
10
10
10
10
Piping connections
Liquid pipe
Inch (mm)
3/4 (19.05)
3/4 (19.05)
7/8 (22.22)
7/8 (22.22)
Gas pipe
Inch (mm)
1 1/2 (38.15)
1 1/2 (38.15)
1 5/8 (41.28)
1 3/4 (44.45)
Intake temperature of AHU Kit
Cooling (Min / Max) °C DB
18 / 32
18 / 32
18 / 32
18 / 32
°C WB
13 / 23
13 / 23
13 / 23
13 / 23
Heating (Min / Max) °C DB
16 / 30
16 / 30
16 / 30
16 / 30
Ambient temperature (outdoor unit)
Cooling (Min / Max) °C DB
-10 / 43
-10 / 43
-10 / 43
-10 / 43
Heating (Min / Max) °C WB
-20 / 15
-20 / 15
-20 / 15
-20 / 15
1
Not applicable for ECO G systems.
Technical data and limitations – PACi systems –
R410A
AHU Kit
PAW-280PAH2(L/M) or PAW-280PAH3M(-1)
Outdoor unit – PACi Standard
U-60PEY2E5
U-71PEY2E5
U-100PEY1E5 U-125PEY1E5 U-100PEY1E8 U-125PEY1E8 U-140PEY1E8
Nominal cooling capacity
kW
6.0
7.1
10.0
12.5
10.0
12.5
14.0
Nominal heating capacity
kW
6.0
7.1
10.0
12.5
10.0
12.5
14.0
Piping connections
Liquid pipe
Inch (mm)
3/8 (9,52)
3/8 (9,52)
3/8 (9,52)
3/8 (9,52)
3/8 (9,52)
3/8 (9,52)
3/8 (9,52)
Gas pipe
Inch (mm)
5/8 (15,88)
5/8 (15,88)
5/8 (15,88)
5/8 (15,88)
5/8 (15,88)
5/8 (15,88)
5/8 (15,88)
Piping length
Min / Max
m
3 / 40
3 / 35
5 / 30
5 / 30
5 / 30
5 / 30
5 / 30
Precharged length (
R410A
)
Max
m
30
30
30
30
30
30
30
Additional refrigerant charge (
R410A
) due to extended
piping length
g/m
40
40
50
50
50
50
50
Ambient temperature
Cooling (Min / Max) °C DB
-10 / 43
-10 / 43
-10 / 43
-10 / 43
-10 / 43
-10 / 43
-10 / 43
Heating (Min / Max) °C WB
-20 / 15
-20 / 15
-20 / 15
-20 / 15
-20 / 15
-20 / 15
-20 / 15
AHU unit under “standard conditions”
Air volume flow
Cooling (Min / Max) m³/h
540 / 960
540 / 960
840 / 1,980
1,140 / 2,100
840 / 1,980
1,140 / 2,100
1,140 / 2,160
Air intake temperature
1
Cooling (Min / Max) °C DB
18 / 32
18 / 32
18 / 32
18 / 32
18 / 32
18 / 32
18 / 32
°C WB
13 / 23
13 / 23
13 / 23
13 / 23
13 / 23
13 / 23
13 / 23
Heating (Min / Max) °C DB
16 / 30
16 / 30
16 / 30
16 / 30
16 / 30
16 / 30
16 / 30
AHU DX coil heat exchanger volume Min / Max
dm
3
1.3 / 1.4
1.3 / 1.4
1.5 / 1.9
1.5 / 1.9
1.5 / 1.9
1.5 / 1.9
1.5 / 1.9
Heat exchanger face area
Min / Max
m
2
– / –
– / –
0.43 / 0.51
0.43 / 0.51
0.43 / 0.51
0.43 / 0.51
0.43 / 0.51
AHU unit under “special conditions A
2
”
Air volume flow,
subject to restrictions
2
Cooling (Min / Max) m³/h
540 / 1,450
540 / 1,600
840 / 2,400
1,140 / 2,500
840 / 2,400
1,140 / 2,500
1,140 / 2,600
Air intake temperature
1
Cooling (Min / Max) °C DB
18 / 30
18 / 30
18 / 30
18 / 30
18 / 30
18 / 30
18 / 30
°C WB
13 / 23
13 / 23
13 / 23
13 / 23
13 / 23
13 / 23
13 / 23
Heating (Min / Max) °C DB
16 / 30
16 / 30
16 / 30
16 / 30
16 / 30
16 / 30
16 / 30
AHU unit under “special conditions B
3
”
AHU DX coil heat exchanger volume,
subject to restrictions
3
Min / Max
dm
3
1.3 / 1.8
1.3 / 2.0
1.5 / 2.8
1.5 / 2.75
1.5 / 2.8
1.5 / 2.75
1.5 / 2.8
Additional refrigerant charge (
R410A
) due to larger heat
exchanger volume
kg/dm
3
0.9
0.9
0.9
0.9
0.9
0.9
0.9
Max. additional refrigerant charge (
R410A
)
kg
0.36
0.54
0.81
0.76
0.81
0.76
0.81
Max. pipe length
m
40
35
30
30
30
30
30
Max. ambient temp. for pump down
°C
n/a
n/a
35
25
35
25
n/a
Continued on following page. See footnotes overleaf.
22.07.2021, cH
Maybe we should move the following rows up into
the “Outdoor unit” section of the table (because it
is a general “outdoor unit property” which is inde-
pendent of the AHU kit):
- Piping length
- Precharged length
- Add. refrigerant charge due to extended piping
length
What do you think?
27.07.2021, JW
Yes, agree. Please add PAW-280PAH3M also here
02.08.2021, cH
Rows adjusted and PAH3M added.
06.08.2021, JW: OK
Summary of Contents for PAW-280PAH3M-1
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