Lindab CBC Plenum Box Installation Guide

: July 10, 2024
: Lindab

Table of Contents

Directly against ceiling
Mounting of diffuser in CBC/CBE
Balancing
k-factors for ceiling diffusers + CBC
k-factors for ceiling diffusers + CBE
Documents / Resources

Lindab CBC Plenum Box Installation Guide

Symbols

Supply air
Extract air
Open damper
Closed damper
No tools – Magnet
Lock
Unlock

**Unpacking and protection of CBC/CBE

**

Accessories

**MHS

**

**M8

**

**PC410

**

**Dimensions

**

Ød 1 Ød 2 **mm| B| C| D| e mm| H| L| W| m kg**
---|---|---|---|---|---|---|---|---
100| 125| 65| 213| 78| 40| 175| 273| 209| 1.4
100| 160| 65| 231| 78| 40| 175| 308| 244| 1.6
125| 160| 78| 250| 78| 40| 200| 327| 244| 1.9
125| 200| 78| 270| 78| 40| 200| 367| 284| 2.3
160| 200| 95| 295| 78| 40| 234| 392| 284| 2.6
160| 250| 95| 320| 78| 40| 234| 442| 334| 3.1
200| 250| 115| 345| 78| 40| 274| 467| 334| 3.6
200| 315| 115| 377| 78| 40| 274| 532| 399| 4.3
250| 315| 140| 423| 118| 60| 325| 558| 399| 6.5
250| 400| 140| 466| 118| 60| 325| 643| 484| 8.6
315| 400| 173| 536| 118| 60| 390| 714| 484| 9.8

**Damper options

**

Mounting of CBC/CBE
Accessory MHS
**Threaded rod M8

**

Directly against ceiling

Mounting of diffuser in CBC/CBE

Diffusers: PKA, PCA, LKA, LCA, LCC, LCP, LKP, NO19

Use self tapping screws Not included

Balancing

k-factors for ceiling diffusers + CBC

Supply air

**CBC

| **PCA| PKA| Formo LCA| LKA| Integra LCC/LCP LKP| NQ19
---|---|---|---|---|---|---
| SUPPLY|
CBC-100-125| 9.92| 9.80| 9.37| 9.19| 8.64| 8.18| –
CBC-100-160| 11.64| 11.87| 10.87| 11.44| 10.75| 10.65| 11.06
CBC-125-160| 14.66| 14.82| 12.88| 13.78| 12.77| 12.32| 10.94
CBC-125-200| 16.96| 18.09| 14.58| 17.06| 15.71| 15.19| 17.82
CBC-160-200| 21.39| 22.90| 17.32| 20.65| 18.26| 17.31| 17.57
CBC-160-250| 25.98| 25.83| 22.85| 24.19| 20.63| 21.58| 23.38
CBC-200-250| 30.91| 30.33| 26.29| 28.23| 23.44| 24.60| 25.17
CBC-200-315| 42.64| 43.58| 33.31| 36.78| 28.17| 29.48| 32.24
CBC-250-315| 43.04| 43.50| 32.23| 35.99| 27.66| 28.60| 36.90
CBC-250-400| 55.65| 55.44| 35.25| 41.35| –| –| 41.78
CBC-315-400| 62.89| 70.18| 35.72| 43.74| –| –| 44.33
Supply

Diffuser| Straight duct
SR
| Bend
BKU, BU, BSU
| Expansion
RCFU
| T-piece + min. 2xD*
TCPU

LCC / LCP / LKP / NQ19| ±5| ±7,5%| ±7,5%| ±10,0%
LCA / LKA| 15| 47.5%| $7.5%| 10.0%
PCA/PKA| 7.5| 10.0%| 10.0%| 12.5%

To fulfill the above-mentioned accuracy levels, the min. air speed at the diffuser connection ( Ød2 ) of the plenum box should be 1.2 m/s, which corresponds to the following min. air flow for different sizes

Diffuser connection Ød 2	min. Air flow
mm	l/s
125	15
160	24
200	38
250	59
315	94
400	151

To fulfill accuracy for T-piece the following limitations are to be considered.
Between T-piece and plenum box it is recommended to have 2xD straight duct, ( where D is the duct connection diameter Ød1 ) .
Furthermore, the air speed in main duct should not exceed 6 m/s.

k-factors for ceiling diffusers + CBE

Extract air

**CBE

| **PCA| Formo PKA LCA| LKA| Integra LCC/LCP LKP
---|---|---|---|---
| EXTRACT|
CBE-100-125| 27.27| 25.38| 16.86| 16.08| 15.83| 16.05
CBE-100-160| 30.54| 45.55| 26.52| 20.74| 20.84| 21.03
CBE-125-160| 23.68| 30.45| 20.45| 17.99| 18.58| 20.44
CBE-125-200| 42.66| 51.88| 27.70| 27.52| 18.39| 25.90
CBE-160-200| 33.16| 33.80| 25.23| 26.66| 19.98| 21.85
CBE-160-250| 40.15| 59.99| 34.07| 40.18| 22.15| 25.65
CBE-200-250| 42.32| 44.98| 31.05| 35.54| 23.58| 26.28
CBE-200-315| 73.24| 83.27| 45.47| 53.07| 29.64| 28.99
CBE-250-315| 57.35| 59.56| 38.27| 43.60| 22.99| 28.20
CBE-250-400| 114.1| 132.61| 41.62| 47.57| –| –
CBE-315-400| 104.11| 103.77| 40.27| 48.54| –| –
Extract

Diffuser| All connections
LCC / LCP / LKP| ±5%
LCA / LKA| ±5%
PCA / PKA| ±7.5%

To fulfill the above-mentioned accuracy levels, the min. air speed at the diffuser connection ( Ød2 ) of the plenum box should be 1.2 m/s, which corresponds to the following min. air flow for different sizes:

Diffuser connection Ød 2	min. Air flow
mm	l/s
125	15
160	24
200	38
250	59
315	94
400	151

**Maintenance

**

Store the damper in the plenum box

**Installation of C- and E-damper

**

For balancing pull measuring tube and damper strings out of plenum box before clicking on faceplate. When balancing, diffuser faceplate MUST be on ! After balancing store strings in box and lock damper strings, see page 7.

Most of us spend the majority of our time indoors. Indoor climate is crucial to how we feel, how productive we are and if we stay healthy.
We at Lindab have therefore made it our most important objective to contribute to an indoor climate that improves people’s lives. We do this by developing energy-efficient ventilation solutions and durable building products. We also aim to contribute to a better climate for our planet by working in a way that is sustainable for both people and the environment.
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