GRLc-m

GRLc
Installation – Commissioning – Maintenance
20160331
k-factor
Accessories
k
GRL 400-200
+ TRG 400-200-250
Tomelilla
Sweden
Commissioning box:
TRG. Manufactured in galvanized sheet steel. It includes a removable damper, mounting frame with air distribution plate, fixed
measurement tapping and sound absorbent insulation covered by a
reinforced surface layer, to Fire Resistance Class B-s1,d0 according
to EN ISO 11925-2.
B=XX K=XX L=XX
q
Mounting frame with damper
FHA. Manufactured of galvanised sheet steel, with a slide damper
in the rear. Can be used of the TRG as a simpler alternative. N.B.!
No flow measurement function.
p
Mounting frame
FHB. Made of galvanised sheet steel. Used if no commissioning box
is installed. N.B.! No flow measurement function.
q=k⋅ p
Installation
The grille requires the fitter to cut an opening according to the
nominal width and height dimensions specified. Press the mounting frame (FHA/FHB) into the duct and secure it in position with
blind rivets. Then press the grille into the mounting frame. If a TRG
commissioning box is used, pull the telescopic mounting frame
out of the box. Push the box from the rear into the opening and
secure the box to the building structure with mounting brackets
or hangers. Push the telescopic mounting frame into the box from
the room side and secure it to the sides with blind rivets. Then
press the grille into the mounting frame. If the sum of the width
and height of the grille exceeds 700 mm, the grille will have to be
secured with screws to the wall via the countersunk screw holes.
p=
q
(k)
2
q = flow reading l/s
p = current pressure reading (Pa)
k = commissioning factor
Figure 1. Commissioning.
Commissioning
Commissioning must be carried out with the grille installed. The
measurement tubes and damper cords pulled through the grille.
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The k-factor is found in the product label and can also be found
in the relevant k-factor guide which is to be found at www.
swegon.com.
Free area
To obtain the free area, the nominal area of the grille is multiplied
by the factor f=0.91.
Example:
Grille: GRL 400-200
Nominal area of grille:
(0.4 - 0.02) x (0.2 - 0.02) = 0.0684 m2
Free area of grille: 0.91 x 0.0684 = 0.062 m2
Maintenance
The grille can be cleaned when necessary using lukewarm water
and detergent. If the TRG commissioning box is used, the inside
of this should be vacuum cleaned when needed. The duct
system is accessible without the use of tools. The grille is first
pulled off the mounting frame. The measurement plate is then
taken out of the mounting frame and the damper unit is removed by turning the damper out its bayonet fastener.
Figure 2. Installation. Commissioning.
To secure the damper action (2) in the duct connection and to
secure the octagonal perforated face plate (3) against the duct connection.
1. Commissioning box
2. Damper action
3. Octagonal air distribution plate
4. Mounting frame
5. Grille
GRL
Dimensions and weights
Table of dimensions and weights (kg)
Table of dimensions TRG
Size
A
B
C
ØD
F
I
G
Weight,kg
Size
200-100
203
100
80
124
175
98
195
2.7
200-100
0,3
0,4
Weight ,kg
300-100
303
100
100
159
210
115
230
3.9
300-100
400-100
403
100
100
159
210
115
230
4.7
400-100
0,5
500-100
503
100
120
199
245
135
270
7.5
500-100
0,6
300-150
303
150
120
199
270
135
270
5.3
300-150
0,5
400-150
403
150
145
249
305
160
320
6.8
400-150
0,6
500-150
503
150
145
249
305
160
320
7.8
500-150
0,7
400-200
403
200
145
249
330
160
320
8.5
400-200
0,7
500-200
503
200
180
314
360
194
387
9.8
500-200
0,8
600-200
603
200
180
314
360
194
387
11.0
600-200
0,9
600-300
603
300
215
399
495
244
487
13.2
600-300
1,0
Figure 4 Fixing frame with sliding damper FHA.
1. = Nom. -3 mm
Figure 3. GRL.
1. = Nom. width + 30 mm
2. = Nom. height + 30 mm
In order to obtain the exact dimensions of the grille, the figures in the GRL diagram above must be added to the nominal
dimensions.
Hole making size = nominal dimensions (Grille size designation.
Figure 5. Fixing frame FHB.
1. = Nom. -3 mm
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Swegon reserves the right to alter specifications.
20160331
GRL
K-factor (COP)
TRG Size
GRL – extract air
Conn. B
Conn. K
Conn. L
200-100-125
7.9
8.5
7.0
300-100-160
13.3
13.2
11.8
400-100-160
18.9
18.5
16.9
500-100-200
23.2
23.3
21.0
300-150-200
21.0
20.9
18.5
400-150-250
29.1
28.4
25.3
500-150-250
36.6
35.7
32.4
400-200-250
46.6
42.9
39.8
500-200-315
56.8
55.4
47.9
600-200-315
70.0
68.5
59.4
600-300-400
109.0
107.0
104.0
Number of measuring tubes: 2. Connection alternative B = Rear,
K = Short side, L = Long side
Figure 6. Connection alternative on the TRG.
B = Rear connection
K = Connection on short side
L = Connection on long side
20160331
Swegon reserves the right to alter specifications.
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