Biddle DF Especificações descarregar pdf (Página 14)

INSTALLATION COMFORT AIR CURTAIN

en-14

2.5.1 Particulars

Caution:

c The central heating system’s supply and return pipes

must be attached to the correct connectors 1. The

directions are indicated on the unit using arrows.

• Keep the connectors 1 in place by using pliers when con-

necting the pipes.

• Biddle recommends inserting a valve and a bleed on both

pipes close to the unit.

Application limitations for units with water heating

2.5.2 Frost protection

Take the following precautions if you install the unit in a room

where frost may occur:

• Provide for constant circulation of the water at the right

temperature;

• Add up to 20% glycol to the water when the unit is not in

operation during the wintertime;

• Or bleed the system and the unit.

2.5.3 Connecting the water-side control

1. Open the unit.

2. Connect the unit and the three-way valve to the central

heating system as shown in the diagram.

Note:

n The diameter of the bypass pipe from Connection B

to the return pipe must be at least 22 mm.

Heating medium water with max. 20% glycol

Max. water supply

temperature

DF S-W, M-W: 90 °C

DF L-W: 70 °C

Max. air discharge

temperature

DF S-W, M-W: 70 °C

DF L-W: 45 °C

Max. operating pres-

sure

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Biddle DF Especificações Página 14