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6.2.6.2 In the case of an appliance having a ducted air supply, it will be necessary to disconnect the flexible
ducting from the Air Inlet by first releasing the hoseclip.
6.2.6.3 If it is necessary to remove the Air Inlet to adequately clean the Baffle Plate it will be necessary to
replace the gasket seal (see section 7.10 - Replacement Parts).
6.2.7
Door Seal
6.2.7.1 Check the condition of the seal around the Control Box door and replace as necessary (see section 7.10
- Replacement Parts)
IMPORTANT: The appliance will not function unless the seal around the control box door is sound and
the door secured with the two toggle latches.
6.3
Reflector
6.3.1.
If necessary, the Reflector can be dismantled by removing the Clamps, and where applicable the U type
speed clips, and sliding the Reflector Panels out of the Hanger Brackets after first removing the Reflector
End Panels. Dust accumulated on top of the Reflector should be brushed off and the reflective surfac e
cleaned with a soft cloth and detergent in water. A mild non-abrasive metal polish may be used where
extreme discolouration has occurred.
6.4
Flue Pipes
6.4.1
For Flued appliances it is important that periodic sweeping of the flue is carried out acc ording to the
National or Local regulations in force.
6.5
Re-assemble and Commission
6.5.1
Re-assemble the appliance in reverse order and commission in accordance with the instructions
contained in Section 5.
6.6
Auxiliary Controls
6.6.1
Room thermostats, time switches, frost thermostats etc should be checked to ensure correct functioning,
and are set to the users requirements.
7.
REPLACING COMPONENTS
IMPORTANT: Disconnect gas and electricity supplies to the appliances (and system) before carryin g out
any repair work. This work can be carried out at high level using a purposes designed access tower, but it
is preferable that this work should be carried out at ground level.
7.1
Duplex Fan
7.1.1
To remove the Duplex Fan from the Radiant Tubes, carry out operations 6.1.1, 6.1.2 and 6.1.3 of the
Servicing Section.
7.1.2
Unscrew the three M6 x 12 setscrews from each side of the fan, securing the two Connectors and Orifice
Plates to the fan.
7.1.3
When re-assembling the Orifice Plates and Connectors, new Gaskets must be fitted between the Fan case
and each Orifice Plate. (See section 7.10).
IMPORTANT: Model PTDS 15 ONLY
The 3 air bleed holes in the cylindrical portion of the connector must be positioned such that they are below
the horizontal centre line of the radiant Tube.
7.1.4
Unscrew the 8 - M5 x 10 setscrews securing the Fan Adaptor to the two fan case flanges and remove the
Fan Adaptor. When reassembling the Fan Adaptor, new Gaskets must be fitted between the Fan Adapter
and the two fan case flanges (see section 7.10).
