Commercial Electric Heat ODH-4500R User manual

ELECTRICAL CONNECTION
IMPORTANT : always check to ensure the heating elements cannot be energised without the fan
running.
The heater should be installed in accordance with the latest edition of the IEE Requirements for
Electrical Installation (BS 7671:2001)
Remove heater cover plate (4 screws)
Select cabling with 4 cores and earth of appropriate size for current and volt drop.
Pass cable/s through cord grip in top of unit. Leave sufficient length for connection but ensuring cables
do not foul blower unit. Make off connections to connector block and earth stud in accordance with
circuit diagram ODH-W-006 ( copy on back page)
If remote switching is not required connect power supply to L and N and link L,LI and LII with 1.5sqmm
cable.
Tighten up cord grip. Replace connection cover.
Position remote switch unit in suitable location. A means of disconnection having a contact separation of
3mm in all poles should be incorporated.
.
WARNING: THE HEATER MUST BE EARTHED.
Installation Instructions
ODH-4500R Over Door Heater
Reference
J356d
SAFETY
The correct procedures for working at height must be adopted when installing this heater.
The heater must be installed by a suitably qualified person in accordance with current regulations.
CONTENTS
LOCATION
FIXING
a)
b)
Remove from carton and check contents:
- heater unit
- mounting bracket
- 2 no. M6 bolts, 2 no. shake proof washers, 4 no. plain washers.
Ensure all packing material is removed and inlet/outlet grilles are clear.
This heater is designed for high level use above frequently used doorways. It must not be installed less
than 1.8metres from floor level and the maximum recommended mounting height is 2.8m. It should not
be positioned immediately below a fixed socket outlet. Optimum performance is achieved when the
heater is positioned as close to the top of the door as possible. For wider doorways multiple units can
be installed giving a continuous curtain of hot air.
The heater can be mounted either a) directly to the wall or b) to the wall or ceiling using the bracket
supplied.
The unit is mounted directly to the wall via two keyhole slots and fixed via two holes.
1) Securely fix two No.10 screws (not supplied) at 500mm centres 208mm above desired position for
outlet grille.
2) Slide unit over screws and ensure secure fixing.
3) For extra security the front cover can be removed and the two additional mounting holes used
.
(DISCONNECT FROM POWER SUPPLY BEFORE REMOVING COVER)
The bracket can be fixed to either the wall or ceiling provided secure fixings can be made
1) Loosely fit M6 bolts with 2 plain washers and shake proof washer closest to head.
2) Provisionally place in bracket to ascertain optimum location and mark fixing holes.
3) Remove from heater and securely fix bracket
4) Replace heater at appropriate angle and tighten bolts securely.
CONTROL
Remote Switch
Thermostat
The Remote Switching Unit (ODH-RSW) allows ON/OFF, Fan only with 2.25 or 4.5 kW.
If a thermostat is required a unit of sufficient switching capacity(25A) can be connected in the power

CONTROLS.
On/off control is by remote switch. Heat control is by the 2 switches located next to the outlet grille.
One on - half heat (2.25 kW)
Two on - full heat (4.5 kW)
Both off - fan only
Note: the switches are electrically interlocked to ensure the heat cannot be on without the fan operating.
They operate in parallel with the remote switch.
CLEANING.
The heater should be cleaned occasionally to reduce the build up of dust which may cause the unit to
overheat
OVER TEMPERATURE CUT OUT
To RESET -
Do not cover the unit
Should the heater exceed normal operating temperature the over temperature cut out on the heating
element will operate.
switch off power to the unit and allow to cool before switching on again. If the problem persists
consult a suitably qualified person.
Note:- or allow the inlet grille to be obstructed as this could cause over heating and
possible damage.
The Manufacturers reserve the right to change the specification without prior notice EO&E
Please keep these instructions for future reference
S02
WARRANTY
This product is guaranteed, in accordance with our Conditions of Sale, for a period of 12 months from date
of purchase. We will repair or replace, at our discretion, any part found to be defective. We cannot accept
responsibility for any consequential liability.
The warranty will be invalid if the heater has not been installed in accordance with these instructions.
This does not affect your statutory rights.
Remote Switch ODH-RSW (Optional)
Note:- operates in parallel
with integral switches
Commercial Electric Heat Limited
HAWICK TD9 8SL
No Part No Description
No DateRevision
Title
RevDrawing No.
Date
Drawn by
Scale
L011
I
II L
L
N
N
ODH-W-006 2nts
NEB 29.05.03
ODH-4500R 4.5kW
Over Door Heater
c/w remote switch
Connector
Block
Fan
Motor
Heating
Element
1
2
3
4
B033-01
D002-01
F015
C001
Heating element
Fan motor
Connector block
Blower unit
5
1
2
11/04
02/09
E077 SPST 16A sw red
Add external cut outs
Change motor connection
Schematic diagram
3
Heater
Rocker
Switches
5
2
1
L1
L
LL11
All wiring 1.5mm 105 C Tri rated Panel wire
unless marked 2.
2 0
5mm2
Each heating element incorporates over-temperature
cut out in common terminals
To reset:-
Switch off and allow to cool (5 minutes)
then restore supply
Heater does not function again until power has
been removed from cut out
L
2
1
2.25kW 2.25kW
N
Commercial Electric Heat Limited
Burnfoot Industrial Estate
HAWICK
Roxburghshire
TD9 8SL
Tel [phone] Fax [phone]
Email [email protected] Web www.cehltd.co.uk