Lifebreath CAF-02-MB Benutzerhandbuch

When the room thermostat calls for heat, it acti-
vates a circulation pump located inside the Clean
Air Furnace. This pump delivers hot water from
the water heater, through the furnace coil and
back to the water tank. Simultaneously, the fur-
nace blower switches on to high speed and will
start circulating air across the coil, which picks up
heat and delivers it to the rest of your home.

Once the thermostat's temperature is reached the
pump will shut off, and the blower will return to its
pre-set speed or off.

When the thermostat calls for cooling (evaporator
coil and condensing unit required), the furnace
blower activates to high speed and the outdoor
condenser unit is energized. After the thermostat
temperature is reached, the condensing unit will
shut off and the blower will return to its preset
speed or off.

The heat recovery ventilation (HRV) portion of the
Clean Air Furnace, is automatic. Once set, a
desired amount of fresh air will be drawn into the
home while the furnace blower is activated.

To reduce humidity increased ventilation may be
required during heating season. An optional
remote dehumidistat can be installed. The dehu-
midistat will increase the speed of the furnace
blower to high and will return to its original setting
when humidity levels decrease. Your dehumidistat
must be switched off during warmer months as it
is not required for air conditioning operation. To
increase humidity a quality humidifier should be
added to the system.

Typically the air flow for ventilation will be set to 50
- 70cfm, for low speed furnace operation, and 
100 - 150cfm at high speed. The pleated furnace
filter should be checked regularly and replaced as
needed. The HRV filter should be washed twice a
year or more often if needed.

All models are equipped with a circulation timer. It
is normal operation for these models to automati-
cally run the circulation pump for a short period of
time intermittently.