NBS – Fan coil unit
TECHNICAL DOCUMENTATION
Supply air and return air boxes
PL-NBS-100-1-Z-0500-I0
-M43-L00-R00
Construction subject to change.
No return possible.
Version: 06.05.21 | Page 12
Connection type
Connection in air flow direction
M00
=
Connection closed
MAB
=
Connection open
MRE =
Connecting flange
M1x
=
with x spigots DN123
M2x
=
with x spigots DN158
M3x
=
with x spigots DN198
M4x
=
with x spigots DN248
---
For the number of spigots, see table
Model
Max. number of connection pieces
DN123
DN158
DN198
DN248
-100-1
4
3
2
2
-100-2
7
5
4
4
-100-3
9
8
7
5
-150-1
5
4
3
2
-150-2
8
6
5
4
-150-3
9
9
7
6
Connection in air flow direction on the left
L00
=
without connection
L1x
=
with x spigots DN123
L2x
=
with x spigots DN158
L3x
=
with x spigots DN198
L4x
=
with x spigots DN248
---
For the number of spigots, see table
Connection in air flow direction on the right
R00
=
without connection
R1x
=
with x spigots DN123
R2x
=
with x spigots DN158
R3x
=
with x spigots DN198
R4x
=
with x spigots DN248
---
For the number of spigots, see table
Length
of box
Max. number of connection pieces
DN123
DN158
DN198
DN248
0300
1
1
-
-
0400
1
1
1
1
0500
2
2
1
1
0600
3
2
2
1
0700
4
3
2
2
0800
4
3
3
2
0900
5
4
3
2
1000
5
4
4
3
NOTE
High flow rates at the spigot may cause noise. To reduce the
rates, the diameter and/or the number of spigots should be
modified.
right
left
In air flow direction
(Secondary air)
In air flow direction
(supply air)
Connection closed
-M00
Connection open
-MAB
Connecting flange
-MRE
Connection with
connection spigot
-Mxx
