UC 500-MHE – INSTALLATION, USE AND MAINTENANCE MANUAL
13
HEAT RECOVERY BYPASS
WINTER OPERATING MODE
FRESH AIR VENTILATION
AIR RECIRCULATION
Both fans are running and
carrying out the fresh air
ventilation; the outdoor air is
warmed up by the heat
exchanger first, by using the
exhaust air, and then by the
hot water circulating in the
finned coil.
The supply fan is running; the
room air extracted and
supplied to the room again at
the set temperature. The
outgoing temperature is
regulated by modulating the
flow rate of the hot water
circulating in the finned coil.
The flow rate for the supply
air can be set from 300 to 500
m³/h
Both fans are running, the
intake air damper is closed and
the bypass damper is open.
The inflow air is warmed up by
the water coil.
The air flow rate can be set
from 160 to 300 m³/h.
INDOOR
INDOOR
INDOOR
OUTDOOR
OUTDOOR
OUTDOOR
