This heater appliance is intended for use as a down draught air heater and can be
mounted directly onto the ceiling or fitted into a 600 mm X 600 mm suspended
ceiling tile frame. It is to be mounted with the underside between 2.5 and 3.0 metres
from floor level. If exceeding 3 metres there will be a reduction in performance.
INSTALLATION.
Preparation.
a) Ensure the mounting surface is capable of supporting this heater appliance and
that the area can provide the installation clearances shown in diagram 1.
b) If installing this heater appliance into a false or suspended ceiling, suitable
suspension chains or rods (6 mm dia., threaded) will be required for attachment
from the top of the heater appliance to the rigid or solid surface above the
mounting area. When using this installation technique, it is recommended the
four fixing points at the top corners of the heater appliance be used to minimise
movement.
c) An installation point for the heater appliance control switch must be selected.
The area must be free from moisture and no higher than 2 metres from the
floor. An electrical cable is required from the power supply to the control switch
and also from the control switch to the heater appliance (see under Electrical
Connections).
d) Remove the facia and fixing screws. Store these in a safe place until required.
e) Remove the screws retaining the side panel marked Electrical Connections and
take out the panel. Store these until required.
To mount the heater appliance direct to the ceiling.
A surface mounting kit is available as an accessory. This kit provides a 135 mm skirt
between the facia and the ceiling.
1. Drill six holes in the ceiling to match 6 (3 per side) of the 14 holes available in
diagram.
Note: The installation clearances given must be kept outside the broken lines
shown. The lines represent the outer edges of the facia panel.
2. Plug the drilled holes according to the ceiling type and construction material.
3. Secure the heater appliance to the ceiling using screws suitable for the
purpose.
4. Refer to the section under Electrical Connections.
5. Replace and secure the panel marked Electrical Connections.
6. Replace the facia and secure with all the original screws.
2
All electrical connections and installations must comply with BS7671 1992,
and the I.E.E. regulations. Check the voltage stated on the heater appliance
is correct for your supply. If in doubt, consult a qualified electrician.
Electrical Connections.
Place and secure a 3 core
2.5mm² single strand
interconnecting cable from the
heater appliance location to that of the control switch.
Pass the cable through the heater appliance cable entry facility.
Ensure there is sufficient cable to pass under the cable grip and reach the terminal
block / earth pillar area inside the heater appliance.
Control Switch.
Remove the two screws retaining the switch front panel and lift it off. Remove the
two screws retaining the inner frame and switch from the patress box. Lift out the
frame and switch.
Prepare the patress box for cable entry by selecting the top, bottom or rear facility
for the interconnecting cable and the mains electrical supply cable. Secure the
patress box to the mounting surface and feed sufficient cable through the selected
entry point.
With the three cores of the interconnecting cable, connect the control switch to the
heater appliance as shown in the wiring diagram.
Connect the mains electrical supply cable (3 core, single strand 2.5mm²) via a
switched fused isolator, fused at 20A to the switch panel as shown in the wiring
diagram.
Do not energise the supply until the panels described have been returned and
secured.
Unit Operation.
The wall mounted control switch has 2 positions Off (no fans no heat) and On
(fans and 4kW heat)
Room Thermostat Control.
CAUTION
Ensure room stat rating is compatible with load
(Minimum 4 Amps per Kilowatt (kW).
Refer
to manufacturer’s instructions for connections.
7
