POWER 170 S AND 250 S
Single speed fan. Controlled by remote switch (e.g. light switch or Auto -Sensor), Fig.7.
The neon indicator is lit when the fan is running.
POWER 170 P2S AND 250 P2S
Dual speed and OFF. Low speed running for permanent “trickle” ventilation / High speed
override / OFF, controlled by integral pullcord switch, Fig.8. Pullcord switch sequence –
OFF, LOW, HIGH. The neon indicator is lit when the fan is running.
The POWER 250 P2S only, may alternatively be connected for remote switching. The
remote switch (e.g. light switch) will switch between permanent LOW speed “trickle”
ventilation an HIGH speed override. There is no OFF position with remote switching. Use
Fig.9 for wiring to a remote switch, when the integral pullcord switch must be set for LOW
speed and the pullcord cut off close to the fan.
POWER 170 HP AND 170HP
The fan contains an integral humidity sensor. In automatic mode the control switches the
fan on at LOW speed when the room Relative Humidity (RH) reaches the set-point. The
fan will continue to run until the room RH falls below the set-point. To prevent night time
tripping the humidity sensing is inactive below 10ºC.
The integral pullcord or a remote switch (e.g. light switch) will switch between automatic
humidity control and manual override at HIGH speed. The Light Emitting Diode (LED)
indicator will be lit for manual override. The LED will NOT light under automatic humidity
control, even if the fan is running. There is no permanent OFF position.
Use Fig.8 for wiring the manual override by the integral pullcord. Use Fig.9 for wiring the
manual override to a remote switch, when the pullcord must be switched to the automatic
position (LED off) and the cord cut off close to the fan.
The humidity control is factory set to switch on at about 72% RH.
To LOWER the set -point use a small screwdriver to turn the adjuster ANTI -CLOCKWISE,
Fig.10. This makes the controller MORE sensitive to RH, i.e. it will come on at a lower
RH.
To RAISE the set -point use a small screwdriver to turn the adjuster CLOCKWISE, Fig 10.
This makes the controller LESS sensitive to RH, i.e. it will come on at a higher RH.
NOTES:
1. Upon installation it is possible that the humidity control will make the fan run
continuously until it has acclimatized to the environment.
2. The fan uses a „soft start feature i.e. the motor will take several seconds to
reach speed.
POWER 170 T AND 250 T
Single speed with overrun timer. The fan must be wired to a remote switch (e.g. light
switch),Fig.9. When switched “ON”, the fan will operate at full speed, and will continue to
run for a pre-set time after the switch is turned “OFF”. The timer is factory set at 20
minutes. To reduce the operating time, turn the adjuster in an anti -clockwise direction,
Fig.10. The neon indicator is lit when the fan is running.
After wiring is completed, replace terminal block cover and grille. Turn on mains
supply and check operation.
6
Содержание POWER-170
Страница 1: ...POWER 170 250 Installation and Wiring Instructions POWER 170 250 Installation and Wiring Instructions...
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Страница 4: ...INSTALLATION POWER 170 250 Fig 3 Fig 6 Fig 4 Fig 5 Fig 3 Fig 1 Fig 2...
Страница 5: ...Fig 7 Fig 8 Fig 9 FAN FAN FAN Fig 10 ref 9019012300 RH ref 9019012300 RH...
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