Operating Instructions - Myson WHISPA III 5000 Manuel D'installation, D'utilisation Et D'entretien

31601 Whispa Manual - US+French.qxp 16/11/2017 12:01 Page 10
EN

10.0 Operating Instructions

This unit is controlled by the switches on the front of the unit.
Ensure the electricity supply is switched on.
Heating Mode
The fan will only operate when
• The central heating boiler is on
• The pump is running
• The system water temperature is greater than 110°F.
Ensure boiler is on, and set timer, boiler controls and room
thermostats as necessary.
• Turn room thermostat to a high setting.
• Set heat/fan only switch to
• Set fan speed control position I.
• The unit will now run on low fan speed. For satisfactory
operation the mean water temperature should not be below
140°F.
Temperature Control
The room thermostat setting should be gradually adjusted to
obtain the desired temperature.
The fan speed can be set to boost by switching the fan speed
switch to II.
A low speed setting is recommended for normal operation with
the higher speeds for boost heating when required.
WHISPA III
Low Limit Operation
The low limit thermostat fitted to the WHISPA III
that the fan stops after the heating system is switched off and
the water flow stops. If left in an operating position the unit will
automatically restart when the heating system is reheated.
Off Position
Set the fan speed selector switch to the off (O) position.
Summer Mode
®
If required, the WHISPA III can be used in summer for air
circulation without heat.
Set heat/fan only switch to
Adjust fan speed to required setting.
®
5000, 7000 & 9000 09
®
will ensure