1. Location
The siting of the heater(s) should be such as to allow an even and uninterrupted
distribution of radiation to the area(s) to be heated. Heaters are most effective when the
beam angle is inclined down at an angle of 30º to 45º to the vertical.
2. Mounting
IMPORTANT
When deciding upon the best location, consideration must be given to the following
requirements.
(a) Avoid structures liable to vibration, e.g. crane gantries, which could otherwise
adversely affect lamp life.
(b) The lamps are designed to operate within 5º of the horizontal plane. It is very
important to ensure that the heater is mounted horizontally, otherwise the
operating life of the lamp could be impaired.
(c) Allow a minimum of 0.5 metre clearance between the top of the heater and the
ceiling. (Dimension ‘C’ on the appliance rating label.) Allow a minimum of 1.5
metre clearance between the edge of heater and the adjacent wall facing that
edge. (Dimension ’B’ on the appliance rating label.)
(d) Ensure appliance is mounted the correct way up so that it can be tilted down but
not up.
Mounting height:
Allow the following mounting height between the base of the heater and
the floor. (Dimension ‘A’ on the appliance rating label.)
Model No.
Rating
(kW)
Min. Height
(m)
Recommended Height
(m)
QXD1500
QXD3000
QXD4500
1.5
3.0
4.5
2.1
2.5
3.0
2.5
2.5-3.5
3.5
Note: If more than one heater is to be installed, ensure that the lamps of adjacent
heaters are more than 3.5 metres apart.
Mounting Brackets
Heaters are supplied with a universal bracket which may be fixed through the mounting
holes to any suitable structure. The bracket allows the heater to be inclined to the required
angle from the vertical and permits the heater to be swivelled laterally. It is recommended
that when inclined from the vertical and swivelled care is taken to ensure that the lamps
are still horizontal. WARNING – THESE HEATERS ARE DESIGNED TO BE WALL
MOUNTED ONLY – THEY MUST NOT BE CEILING MOUNTED. THEY MUST NOT BE
MOUNTED IN A ROOM CONTAINING A BATH OR SHOWER.
DO NOT MOUNT HEATERS CLOSER THAN 3.5 METRES FROM CURTAINS OR
SIMILAR SOFT FURNISHINGS.
3. Electrical Supplies
Wiring to the heater must be installed in compliance with the requirement of the wiring
regulations and any local or insurance regulations.
All heaters are suitable for use on 230-240V single phase supplies. The 4.5kW model is
supplied as a dual voltage unit and is also suitable for use on 415V three phase supplies.
Heaters must be protected by fuses to the following rates:
Model No
Input Rating
(kW)
Current Rating
(A)
Fuse Rating
(A)
230-240V
415V
230-240V
415V
QXD1500
QXD3000
QXD4500
1.5
3.0
4.5
6.25
12.5
18.75
-
-
6.25/Ph
10
13
20
-
-
10/Ph
Wiring between the heater and the spur outlet or isolation switch must be in a heat
resisting cable (e.g. butyl rubber or high temperature PVC insulated). Sufficient slack
cable must be left to allow for angular adjustment of the heater body.
An all-pole isolating switch with a minimum separation of 3mm in each pole must be fitted
adjacent to the heater to facilitate local isolation.
If miniature circuit breakers are to be used, to avoid ‘nuisance tripping’ due to the high in
rush at switch on, a type 3 or ‘C’ rated MCB with a tripping coefficient of 7-10 times rated
current should be used. Any other switching device should be Tungsten lamp load rated.
4.5kW heaters must be connected in accordance with the instructions. When connecting
to 415V three phase supplies the links must be removed from the terminal block. When
using the heater on 230-240V supplies the “Danger 415V” notice should be removed from
the terminal cover.
*
Always ensure that the cable grip is tightened.
*