23
08
THERM CONNECT
magna
WOLF run around coil systems
08.04 BMS connection
Control from external AHU control
1 x release contact heating from external AHU control cabinet as normally open contact
1 x power request heating 0-10 V DC
1 x cooling enable contacts from external AHU control cabinet as NO contact
1 x power request cooling 0-10 V DC
1 x outdoor temperature (-35°C - 45°C) 0-10 V DC
1 x power request reheater 0-10 V DC (optional)
Contacts to external AHU control
1 x operating message heating floating NO contact for 230 V
1 x operating message cooling floating NO contact for 230 V
1 x Collective fault signal floating NC contact for 230 V
1 x request for additional energy heating floating normally open contact for 230 V (optional)
1 x request for additional energy for cooling floating normally open contact for 230 V (optional)
1 x ventilation exhaust air humidifier overrun dry normally open contact for 230 V (optional)
08.05 Commissioning
08.05.01 Filling the system
Check before filling the system
Before filling the hydraulic control group, check the following parameters
• Proper installation of all parts
• Venting valve installed at the highest point of the piping
• Direction of flow at valves, pumps, etc.
• Installation position of valves, etc.
• Connection of heater, cooler in counterflow principle (otherwise considerable power losses will occur!)
• Tight fit of all connections (screwed connections, flanges, etc.)
• Smooth running of valves, slide valves, actuators
• Hydraulic lines must be flushed and cleaned
Attention! When filling and venting the system, there is a risk of injury due to
• Escaping pressure jet
• Scalding with hot heating media
• Burning in case of skin contact with antifreeze additives
Filling and venting
Fill hydraulic control group slowly - vent carefully. During the filling process, open the venting valve. During the fill-
ing process, check all connection points for leaks, eliminate them if necessary. After reaching the system pressure on
the medium side, close the venting valve.
