13
Sales/Replacement Telephone 01604 762881
FIGURE 12.
POTENTIOMETERS ON REVERSE OF SWITCH COVER
NOTE:
In manual modes 1 & 2, if the switch live is turned ON,
both fans turn to the setting which was set in the auto
mode.
13.7
WATER DETECTION IN CONDENSE TRAY
13.7.1 If the condensate build up is unable to flow out of the drain pipe and the water rises above a
predetermined level it will be detected by the sensors in the condense tray and the red LED will
flash every 3 seconds until the condense tray is drained.
13.7.2 The fans will stop to prevent any further water to build up.
13.7.3 If you are running in installer mode, you will not be able to continue with fan speed adjustments.
13.7.4 The LED will revert back to flashing every second after water level has dropped below predetermined
level the fans will restart.
13.7.5 If condition persists, investigate the cause and rectify.
13.8
HANDING
This unit is delivered configured for right hand configuration.
13.9
THERMAL BY-PASS
The thermal by-pass is manually operated by turning the remote users control to By-Pass position. In
By-Pass mode the supply air flow rate increases and the extract flow rate decreases lowering the thermal
heat recovery through the heat exchanger, lowering the supply air temperature.
NOTE: If fans do not boost with mains present at the switched live terminal block then press blue switch on the
RTC PCB.
POSITION 1
POSITION 2
TABLE 4
AUTO
1
2
BY-PASS
SWITCH POSITION
% OF FULL SPEED
% OF FULL SPEED
% OF FULL SPEED
SWITCH LIVE NOT ACTIVATED
EXTRACT
10-35%
13-53%
53-99%
Extract Fan Returns to Commissioning Speed
SUPPLY
10-35%
13-53%
53-99%
Supply Fan Runs at Switch Position 2 Speed
SWITCH LIVE ACTIVATED
EXTRACT BOOST
SWITCH LIVE
30-98%
Returns to
Commissioning
Speed
Returns to
Commissioning
Speed
Extract Fan Returns to Commissioning Speed
SUPPLY BOOST
SWITCH LIVE
30-98%
Returns to
Commissioning
Speed
Returns to
Commissioning
Speed
Supply Fan Returns to Commissioning Speed
NOTES
GENERAL
Commissioning
Speed
Set in Installer
Mode
Both Supply
and Extract
Track Together
at Set Speed
Both Supply
and Extract
Track Together
at Set Speed
In By-Pass mode the supply air fan runs at the speed
set at switch position 2 with the Extract fan running at
the speed set at position Auto. When switch live has
been activated both fans return to the commissioning
speed set at position Auto.
