HER Air Heaters
© Munters Europe AB, 2009
Munters reserves the right to make alterations to specifications, quantities, etc. for production or other reasons, subsequent to publication
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Outdoor operation with indoor warm air recovery (type C
13
)
For outdoor installation, if desired, warm air may be sucked from the heated area and supplied to the burner, using the Riello
warm air suction kit, available as an accessory (see instructions enclosed to the kit).
3. Using the heater
Periodically check the power supply cable.
The power supply cable must be replaced by qualified electricians only.
3.1 Start
The equipment can be used with or without room thermostat.
Use with room thermostat: remove the thermostat cap and insert the thermostat plug into the socket. Set the desired
temperature.
Use without room thermostat: connect the thermostat cap (with inner jumper).
Heating mode
Turn main switch to position
(heating). The burner starts first and later, after a short pre-heating time, the fan starts
rotating.
Ventilation mode
Turn main switch to position
(ventilation). Only the fan starts.
3.2 Stop
Heating mode
Turn main switch to position
. The fan continues to rotate for some minutes to cool the combustion chamber and then
stops automatically.
Ventilation mode
Turn main switch to position
(off).
3.3 Safety and regulation devices
The heater is equipped with a reset pushbutton/lamp on the burner front panel. If the heater locks-out, the red lamp lights
up. In this case, after eliminating the cause of lock-out, push the reset button to restart the heater. (see also par.
"Troubleshooting")
The heater is equipped with a manually reset safety thermostat with fixed setting that prevents the unit from overheating.
In the event that the safety thermostat trips, disconnect the heater from mains, search and eliminate the cause of overheating
and reset the thermostat pushing the thermostat reset button on the electrical box.
The heater is equipped with a fan thermostat (factory setting: 35°C) that controls the fan start and stop according to the set
temperature. It also control the post-ventilation (cooling) time after shutdown.
WARNING!
THE FAN CAN START UNEXPECTEDLY AT ANY TIME DUE TO FAN THERMOSTAT ACTION EVEN IF THE
MAIN SWITCH IS ON THE “0” (OFF) POSITION. DISCONNECT THE UNIT FROM MAINS BEFORE REMOVING
ANY GUARD!
The unit is equipped with a limit thermostat (factory setting: 85°C) that stops the burner as the air temperature exceeds the
set value.
Warning!
If the safety/regulation devices (safety, FAN, LIMIT thermostats) trip repeatedly or you notice any kind of
abnormal operation, shut down, disconnect from mains and have the heater checked by qualified personnel.
Warning!
NEVER DISCONNECT THE HEATER FROM MAINS TO STOP IT WHILE IN OPERATION. ALWAYS ALLOW THE
COOLING SEQUENCE TO TAKE PLACE, OTHERWISE THE RESIDUAL HEAT COULD DAMAGE THE
COMPONENTS OR ACTIVATE THE SAFETY THERMOSTAT. USE THE MAIN SWITCH 1-0-2 ON THE
ELECTRICAL PANEL.