aerauliqa QR280E Instructions For Installation, Use And Maintenance Manual page 38

5.5 Additional electric connections
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or
The installation and service of the unit and complete ventilation system must be performed by an authorized installer and in
The units must be earthed.
The units are wired internally from factory.
To connect the the CTRL-DSP to the motherboard use a 4 poles twisted-pair cable: 30m max length.
Figures below show the wiring diagram.
CTRL-DSP
ON/OFF enable)
(Air Quality e.g. SEN-HY)
Boost momentary
Fig. 5.q Electrical connections on the motherboard fitted in the terminal box.
Inputs/commands
N°1 AC supply connector.
N°3 on/off inputs (volt-free contacts), N°1 for ambient sensors (named IAQ), N°1 for boost momentary switch (named BST) and
N°1 for remote ON/OFF enable (named HY/S1).
N°1 1-10V analog input (named SLAVE).
N°1 4-pole connector for CTRL-DSP (RS485 plus 12Vdc supply).
Outputs
N°1 on/off output for pre-heating/post-heating (relay contact – 250Vac 5A).
38
accordance with local rules and regulations.
HY/S1 Input
(for remote
IAQ Input
BST IAQ
switch (BST)
WARNING
electrical work!
WARNING
1-10V
S4 SLA
- + - +
DO NOT REMOVE
(see § 7.3 Remote enable)
HY/S1
HEAT/CD
Heat output
(MAX 250Vac 5A)
SLAVE input
1-10V
N L
AC power supply