OPTIONAL AUTOMATIC VENT CONTROLLER
SECTION 5
THIS UNIT MUST BE INSTALLED BY A QUALIFIED ELECTRICIAN TO THE 17th EDITION BS7671
REQUIREMENTS FOR ELECTRICAL INSTALLATIONS
1. Remove the front panel by loosening the retaining screws.
2. Screw the back box to the surface of a masonry wall in the
conservatory, at the usual height of a wall switch.
3. Choose appropriate knock out for cable entry and smooth edges
to prevent damage to cable insulation.
4. In any situation where the mains cable is not plastered into the
wall, the cable must be adequately secured as close as possible to
the control box to prevent undue stress on the cable.
5. Connect the cables in accordance with the wiring diagram,
bringing sheath as close as possible to the terminal blocks, to
prevent contact of the inner insulation with other parts of the p.c.b.
Note that a junction box will be required in the ridge, to bring all the
actuator cables together. Run a single four-core cable from here
to the control box. Note that a fused isolator must be installed,
providing a contact separation of at least 3mm in all poles.
6. Replace the front panel.
THIS UNIT TO BE INSTALLED USING BASEC OR HAR APPROVED CABLE, AND MUST BE SUITABLY EARTHED
NOTE: CABLE NOT SUPPLIED BY ULTRAFRAME
SECTION 5
INSTALLATION OF VENT CONTROLLER
The Automatic Vent Controller is an integrated electronic
thermostat and controller with rain sensor, for automatic and
manual operation of motorised roof vents. The vents open
automatically at high temperatures and close again when
the temperature drops or rain is detected. Up to 6 Ultraframe
actuators can be controlled by type Q8750.
TECHNICAL SPECIFICATION
Mains Supply:
230V 5A 50Hz
Output current to actuators:
5.2A max at 20% duty cycle
Opening impulse:
Variable, 3 to 9 sec approx.
Closing impulse:
11 sec approx
Di
ff
erential temp of thermostat:
2°C
Mounting angle of rain sensor:
15° to 45°
Cable for rain sensor:
0.5mm2 2 core round
fl
exible cable. Ø5 to
7mm
Working voltage of rain sensor:
1V to 6V wet - 7.5V to 10V dry
(a.c.)
Equivalent resistance of rain sensor:
Less than 80k ohms wet.
Greater than 300k ohms dry
Finish:
White only
Dimensions of controller:
148 x 88 x 52 excluding thermostat
setting knob
Dimensions of rain sensor:
75 x 51 x 28 excluding cable gland
Weight of combined units in packing carton:
450g
NOTE: CABLE NOT SUPPLIED BY ULTRAFRAME
