51Subject to technical amendments without prior notice | 83055400iUK – 2.1 | ait-deutschland GmbH
Abbreviation Meaning
TRL-E Temperature sensor Return extern
TSG Temperature sensor suction gas
compressor
TSK Temperature sensor solar collector
TSS Temperature sensor solar tank
TVD Temperature sensor compressor heating
TVL Flow temperature sensor
TWA Temperature sensor heat source outlet
TWE Temperature sensor heat source inlet
T-WQ Temperature heat source
TWW Temperature sensor domestic hot water
UFH Floor heating circuit
UWP Circulation pump
VBO Fan, well or brine circulation pump
VD Compressor
W/W Water/water heat pump
WP Heat pump
WW Domestic hot water
WWC Water/water Compact heat pump
WWT Domestic hot water thermostat
WZS Bine/Water heatstation
WZSV Performance controlled Bine/Water
heatstation
ZIP Circulation pump
ZUP Additional circulation pump
ZWE Second/additional heat generator
NOTE
Abbreviations that appear in the display of the heating
and heat pump controller are explained in the respective
menus and submenus. Abbreviations can also be found in
the operating manual of your appliance in the legends for:
● performance curves
● dimensional drawings
● installation plans
● hydraulic integration
● terminal and circuit diagrams