Airedale Chilled Water Cassette 2kW - 11kW - Manual (Page 27)

28 Technical Manual: 6806236 0 /20
CHILLED WATER CASSETTE
Model
Capacity
Supply
Number and Dia. of connecting wires
TL 4.2T-E / TL 5.2T-E / TL 6.2T-E
3000 Watt
400V ~
5 x 1.5 mm 2
TL 2.2T-E / TL 3.2T-E
2500 Watt
230V ~
3 x 2.5 mm 2
TL 1.2T-E
1500 Watt
230V ~
3 x 1.5 mm 2
Max. ambient temperature for Cassette unit with electric coil in heating mode: 25°C
The Airedale 2 pipe models are available with electric resistance that is controlled in place of the heating battery valve.
The electric resistance is controlled in place of the hot water valve and not as integration to it.
The resistance is hermetically sealed and supplied inside the battery pipes and therefore can be only factory mounted.
The electric resistances of the TL 1.2T/2.2T/3.2T units are for single phase 230V supply.
The electric resistances of the TL 4.2T/5.2T/6.2T units are for three phase 400V supply.
A specific electronic board is fitted in the unit control panel and it is connected to the resistance and to the safety
thermostat.
When the safety thermostat operates, it keeps open the resistance supply relays on the electronic board.
The rearmement is by electric means, cutting off the supply to the unit.
Note: the cooling capacity of the units is 95% of the capacity in the tables of page 6.
Electric diagrams
LEGEND
IG = Main switch
TS = Safety thermostat
R1 = Resistance 1
R2 = Resistance 2
R3 = Resistance 3
Electric resistance TL-E
Cassette unit operating limits with electric coil