NT-50906901-KSDR-ECOWATT-48-88-120-AN-170907
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ENGLISH
4.3 Connection direct expansion coils
Refrigeration connections must be done in the state of art by a qualifi ed refrigeration engineer.
5. AIRFLOW CONNECTION
5.1 Connection of ducts
Ducts should not exercise any mechanical constraints on the unit.
Check that the plug fan is not accessible from the connection spur line (protection by the connection duct
or steel mesh air inlet).
Do not reduce the diameter of ducts at the exit of connection spur lines.
On the other hand, the diameter can be increased to reduce the passage speeds in the network and to limit
the head losses, energy consumption and noise level.
According to the confi guration of the installation and the required noise level, the addition of a silencer may
be necessary at the air supply.
Take care in sealing the networks over all their lengths, from the inputs to the outputs.
The fresh air duct must be insulated at all times to prevent any leakage and condensation problems. The
insulation level, especially in cold rooms and regions, must be reinforced.
Applicable regulations must be respected in all cases as a minimum requirement.
5.2 Connection of accessories
For all electrical connections on the cabinet of the KSDR ECOWATT
®
: please see §"6.7 Wiring diagrams
of external elements, CAV, VAV and COP adjustments.", page 22.
Motorised damper
When the unit is fi tted with a water coil, you should consider the use of a motorised damper with anti-freeze
protection located on the fresh air network. Whenever possible, use a motorised damper with reinforced
sealing.
Use
Code
Designation
Description
KSDR ECOWATT
®
48
170286
CDR 100 F 800 x 610
Antifrost or fi re damper
KSDR ECOWATT
®
88
170349
CDR 100 F 1100 x 910
Antifrost or fi re damper
KSDR ECOWATT
®
120
Fitted damper, available on EI arrangement.
Extract air sensor
For room temperature adjustment, you must install an air temperature sensor in the desired room. For
return temperature adjustment, a duct temperature sensor must be assembled for recirculation.
Code
Designation
Description
132258
TG-R5/PT1000
Room temperature sensor
132257
TG-K3/PT1000
Duct temperature sensor
Control units
1 or 2 speed comfort control units, high speed activation panel.
Code
Designation
Description
720420
BDEA
Shunt release panel
730395
BCCA 1V
1 speed comfort control unit
730400
BCCA 2V
2 speed comfort control unit
Sizes
48
88
120
(liq/gas) coil header diam.
22/35 mm
28/35 mm
28/42 mm
Coil volume
5 l.
7 l.
10 l.