User Manual

Documentation

Heating control

HB0001 H6B HQ

Demand-compensated boiler temperature control with con-

trolled maintained boiler return temperature

· Demand-compensated boiler temperature control

· Controlled maintained boiler return temperature with

mixing valve

· Control of a boiler pump according to boiler operating

mode

· Control of a single-stage or 2-stage burner

· Control of the boiler temperature via modulating burner

with DC 0…10 V control

Cooling control

CBA001 U2B HQ

Demand-dependent flow temperature control

· Plant on / off depending on demand from the consumers

(demand signal via KNX)

· Switching on the plant via external contact (demand control)

· Control of the chilled water pump, with pump kick and supervi-

sion of flow

· Control of the recooling pump, with pump kick and supervision

of flow

· Control of the chilled water flow temperature by activating the

recooling pump and chiller

· Control of the recooling temperature via the recooling valve

and by activating the recooling fans

· Control of the chiller via compressor on / off command, refrig-

eration valve and a supervision input for the chiller's fault sta-

tus signal. The chiller can only be switched on when there is

flow of water through the evaporator and the condenser

The temperature of each room is acquired and individually controlled. The heating plant is controlled in dependence

on the outside temperature and on the heating request by the rooms. The cooling plant is controlled in dependence

on a cooling demand in the rooms. Non-occupancy periods can be programmed in a time scheduler for each room

or acquired via presence detector. During these time periods, the room temperatures are automatically adjusted to

save energy. Open windows are automatically detected and room temperatures lowered / raised to save heating /

cooling energy.

Control of lighting

L00002 UP2 HQ L00003 UP2 HQ

Presence detectors also help save energy by automatically turning off the lights when the room is not occupied. A

brightness sensor integrated in the presence detector helps switch the lights according to the brightness level so that

the whole room is optimally illuminated using as little artificial light as necessary.