Bms Connection; Commissioning - Wolf THERM CONNECT Operation & Maintenance Instructions Manual

Run around coil systems

Table of Contents

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)

08.05.01 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.

Table of Contents