WS 75 – Wiring diagram 3

A1

Ventilation unit, Powerbox WS 75

W1

230 VAC connection cable

W2

230 VAC connection cable for outside air fan (LIYY 4 x 0.5mm²)

W2'

230 VAC connection cable for outgoing air fan (LIYY 4 x 0.5mm²)

DI1

Digital input 1 / status input 1: Outside air/supply air fan Select contact type depending on function. Note configuration of digital inputs.

DI2

Digital input 2 / status input 2: Outside air/supply air fan Select contact type depending on function. Note configuration of digital inputs.

DI3

Digital input 3 / status input 1: Exhaust air/outgoing air fan Select contact type depending on function. Note configuration of digital inputs.

DI4

Digital input 4 / status input 2: Exhaust air/outgoing air fan Select contact type depending on function. Note configuration of digital inputs.

W7

Connection cable for multi-function contact MFC. Potential-free feedback and function relay contact max. 230 VAC/5 A // 30 VDC/5 A. Note configuration.

W8

Connection cable for external unit release (optional) or safety device. 12 VDC contact potential. External contact type to be used: NC