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HHCompact Air Handling Units
4.11 - Silencers
The silencers for the HHCompact are supplied separately
on a pallet as duct silencers. The duct silencer must
be installed on site at the correct opening. For this use
the connection profiles supplied and use the method
described in chapter in 4.1.5 - “Duct connections”. The
conection to the rest of the duct system can also be made
in this way, as shown in the drawing below.
Legend
1. AHU
2. Duct connection
Please ensure that the duct silencers are always correctly
supported on the floor or suspended from the ceiling.
Make sure that the following weights are taken into
consideration:
Duct silencers
Unit type
Weight, kg
0405
30
0506
35
0606
45
0707
50
0808
70
0909
75
1010
105
1111
110
1212
135
1412
168
1416
225
The duct silencer can also be used for units installed
outside. After installation they must always be insulated
on the outside to ensure that they are water- and
steamtight. The pre-installed air intake and discharge
hood (if used) must be removed first. Install the corner
frame, supplied separately, at the opening of the silencer,
before installing the silencer. Finally replace the air intake
and discharge hood at the opening of the silencer. Here
too the duct silencer must be sufficiently supported, as
shown in the drawing below.
Legend
1. AHU
2. Duct silencer
3. Discharge hood
2. Support (to be field-supplied)
4.12 - Lighting
•
Check the connection voltage.
•
Check the operation of the switch. The switch must
be connected in accordance with local regulations.
4.13 - Control panel
Connect the supply voltage to the control panel in
accordance with the wiring diagram supplied. The general
data for the control panel is given in the table below.
Electrical data for HHCompact C/R/P units
Model 39
SQC 0405 SQC 0506 SQC 0606 SQR 0606 SQR 0707 SQR 0808
SQR 0909
SQR 1010 SQR 1111 SQR 1212
SQP 0405 SQP 0506 SQP 0606
SQP 0707 SQP 0808
SQP 0909
SQP 1010
Main power circuit
Built-in main disconnect switch
Nominal power supply
V-ph-Hz 400-3-50 + neutral
Voltage range
V
360-440
Maximum unit power
kW
3.6
5.8
7.7
7.7
10.5
14.1
14.1
18.9
27.3
27.3
Maximum supply cable size
mm
2
2.5
4
4
4
6
6
6
10
16
16
Main switch
A
25
25
25
25
40
40
40
63
63
63
Unit short circuit capacity
kA
15
15
15
15
15
15
15
15
15
15
Recommended fuse protection,
power circuit
A
20
25
25
25
35
35
35
50
63
63
Control circuit power
Built-in 24 V control transformer
•
Check for possible condensate/moisture. Condensate
may form in the period before the first start-up of
the AHU as a result of weather change and/or humid
air from the building. Remove all condensate from
the construction components and dry the electrical
components using warm (dry) air (e.g. with a hair
drier).
•
Check the supply.
•
The unit supply must be protected by a correctly
sized fuse.
•
Connect all external sensors, control devices and
external controls to the terminal board as shown in
the wiring diagram supplied.