VTR 100B LITE Installation and Service manual v2

Before Starting the System |
31
Position Description
Remark
1
Outdoor/exhaust air damper Normally open, 230 V 1~, max 0,1 A /
24 VAC 1 A
2
Outdoor/exhaust air damper Reference
3
Outdoor/exhaust air damper Normally closed, 230 V 1~, max 0,1 A /
24 VAC 1 A
4
Sum alarm Normally open, 24 V, max 1 A
5
Sum alarm Reference
6
Sum alarm Normally closed, 24 V, max 1 A
7 GND
Reference
8
Water cooler control signal (AO2)
0–10 V DC
9 GND
Reference
10
Water heater control signal (AO1)
0–10 V DC
11 GND
Reference
12
Bypass damper/Rotor control (AO3)
If used, 0–10 V DC
6.3 External connections on top of the unit
Two of the connections on the main print card are wired to plugs on the unit casing:
• connection to an external control panel through a modular connector.
Maximum cable length: 50 m.
Cable type: Flat 4–conductor CEC Phone cable.
• External Modbus connector.
Maximum cable length: 90m in cable duct + 10 m in working area.
Cable type: LAN TCP Cat5E 4x2XAWG24 cable.
• connection to DI 3 with possibility to configure the fan speeds individually through a potential free on/off switch
1. Connection to DI 3 through an on/off switch
2. Connection to control panel
3. External Modbus connection
4. Cable glands
7 Before Starting the System
When the installation is completed, check that:
• The unit is installed in accordance with the instructions
• Outdoor and exhaust air dampers and silencers are installed and that the duct system is correctly connected to the
unit
• All ducts are sufficiently insulated and installed according to local rules and regulations
• Outdoor air intake is positioned with sufficient distance to pollution sources (kitchen ventilator exhaust, central vac-
uum system exhaust or similar)
• All external equipment is connected
• The unit is correctly wired
• The unit is correctly configured and commissioned
• The week schedule and airflow settings are correctly programmed.
212962 | v02