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ADDITIONAL INSTRUCTIONS FOR MODELS WITH DUCT HEATER
Important
•
This heater is intended solely for use with the PPF9 loft-mounted unit. It must be installed by a suitably
qualified person.
•
These instructions must be read in conjunction with the fitting instructions for the fan unit.
•
The heater unit is supplied pre-wired to a surface-mounted thermostat. The thermostat should be mounted
on a suitable surface close to the unit.
Heater Unit Installation Instructions
1. Choose a suitable position within the loft where the heater can be mounted on the same level as the fan
section.
2. Fit the heater over the fan outlet spigot with an overlap of approximately 30-40mm. Secure the two sections
together with four screws through the pre-drilled holes in the heater spigot. (The heating element must be at
the furthest end from the fan.)
3. Fix the heater to the mounting surface by screwing through the heater feet.
4. Mount the thermostat close to the fan unit, preferably against a vertical surface. Do not position above any
source of heat such as ceiling light fittings, etc.
5. Remove the fixing screws from the connection box and lift off the cover.
6. Slacken off the locking nut on the spare cable gland on the end of the connector box and feed through the fan
connecting cable. Connect the two wires to the fan terminals as shown in the wiring diagram. Re-tighten the
cable gland.
7. Replace the connection box cover.
8. Connect the mains cable supplied to a local isolating switch. If a fused spur is used, it should be fused at
3 amps.
Important
: This product must be earthed.
9. Turn on the power and ensure that the fan is operating.
Important: The heater must never be operated without the fan connected and running.
10. Select the required fan speed (factory supplied at setting no. 1) and set the thermostat temperature at the
required level. (
Note:
the higher the temperature selected, the longer the heater will operate.)
The temperature rises are:
-
Speed 1 - 11.5ºC
-
Speed 2 - 7.5ºC
-
Speed 3 - 7.2ºC
11. Connect the ducting to the outlet spigot of the heater and secure with a worm-drive clip.
Note
: In the event that the fan is not running and power is connected to the heater, a thermal cut-out located
inside the connector box will operate, preventing any overheating. Should this happen, the cause of the fan
failure must be rectified. To allow the heater to be re-used, the thermal cut-out must be manually re-set.
Vectaire Ltd, Lincoln Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3RH
Tel: +44 (0)1494 522333. Fax: +44 (0)1494 522337. Email: [email protected]
PPF9Dec2014
E & O.E