OPERATION
CHILD LOCK MODE
A child lock mode is available to prevent children interfering with and/or inadvertent operation of the heater controls.
To activate child lock mode:
Press and hold down the ▲ and ▼ buttons simultaneously for three seconds then
release both buttons. The child lock LED will illuminate green to indicate that the heater is in child lock mode.
To deactivate child lock mode:
Press and hold down the ▲ and ▼ buttons simultaneously for three seconds then
release both buttons. The child lock LED will extinguish to indicate that the heater is no longer in child lock mode.
Note: If the burner is operating and child lock mode is activated, the ‘Power’ button can still be pressed and released
to turn the heater OFF only.
FILTER LIGHT
The filter light will illuminate and flash if the filter is blocked and requires cleaning (refer to “Regular Care” on page 7).
HUMIDIFIER TRAY
The heater has a humidifier tray located behind the lower front cover. The humidifier tray can be filled with water to
raise the humidity level in the room for extra comfort if required (refer to "Humidifier Tray Removal" on page 7).
VERTICAL LOUVRE ADJUSTMENT
The vertical louvers on the heaters front louvre can be adjusted to direct air flow in the required direction by pushing
the vertical section to the left or the right. Note: The horizontal louvres are fixed and cannot be adjusted.
SAFETY DEVICES
Various automatic safety devices are fitted to the heater to provide safe operation. For more information refer to 'How
Your Heater Works' on page 4.
CENTRAL CONTROL – COMMERCIAL MODELS ONLY
PRS-250CN and PRS-250CL commercial models can be controlled by an external central control system, such as a
time clock or BMS, which can be programmed to turn the heater (or group of heaters) ON or OFF at scheduled times.
For information on using a central control system refer to "Central Control Connection & Operation – Commercial
Models Only" on page 20.
12
