Glossary

Table 26.   Glossary

Abbreviation

Description

DEX

day extension

DHW

domestic hot water

DISP

display value

HTV

heating valve

LEG

legionella protection

LWT

buffer lower temperature

MXT

maximum thermostat

OAT

outside air temperature

PRP

primary or charging pump

RWT

return water temperature

SEP

secondary or circulation pump

SST

system supply temperature

SYS

system parameter

UWT

buffer upper temperature