
Installation and Operating Instructions 
Passive Infra-Red Detector Switch 
Model No. DX4130                       
Height Width Depth 
130mm 85mm 145mm 
130mm 
85mm 
THESE INSTRUCTIONS SHOULD BE READ CAREFULLY AND RETAINED FOR FUTURE REFERENCE 
IMPORTANT SAFETY ADVICE 
•  The installation of this product should be carried out  
by a competent person or electrician in strict 
accordance of the current IEE Wiring Regulations 
•  The DX4130 is designed to be used in conjunction  
with Dimplex heaters up to 3kW electrical loading. 
•  Only to be used on a 220-240Volt A.C. ~ electricity  
supply 
•  Electricity supply must be isolated before  
commencement of installation 
•  Always isolate the detector switch and the heater  
from the electricity supply before undertaking any 
maintenance work 
• Must not be installed and used in the vicinity of a  
bathroom or swimming pool 
Installation 
(Please also refer to the IMPORTANT SAFETY ADVICE) 
Before undertaking installation work, ensure the electricity supply is disconnected from any relevant fixed wiring. 
Supply cable is not provided with this product, and it should therefore be installed by a competent person or electrician 
This PIR detector must be used on an A.C. ~ supply only  
Dimplex Quartz and ceramic heaters operate by emitting radiant heat within a specific area or zone. 
The beam of radiant heat will interfere with the correct performance of the PIR detector unless the PIR detector is mounted outside the ‘throw’ of 
radiant heat. It is therefore essential that the PIR detector is mounted as outlined below: 
1. For installation of Quartz and ceramic heaters, please refer to the relevant installation instructions. 
2. The PIR should be positioned to cover the desired sensing area without obstruction, avoiding the direct ‘throw’ of the heater. 
3. The PIR should be wired directly back to a type C MCB or 13 amp re-wireable fuse. The cable should not exceed 2.5mm². 
4. Remove screws and disconnect the plug connecting the detector to the key box. When removing the detector head, the latch on plug 
should be released as indicated. (see Fig.1.) 
Detector Head Plug 
Press Down 
Fig.1. 
General 
The Dimplex passive infra –red detector switch has been designed to 
enable Dimplex Quartz and ceramic heaters (or any other heater up to 
3kW) It automatically switches the heater on and off, depending on 
whether the area below the heater is occupied. 
Features 
•  Time delay adjustment 
•  Full 180º coverage over 15m if required 
•  Size of detection area can be reduced 
•  Approved to VDE 0632 and IEC 669-2-1 
•  Separate wall-box and plug in detector lead to simplify installation 
• IP54 rated 
Contents 
X 1 Instruction sheet 
X 1 grey wall box with fixed terminal block 
X 1 PIR switch with pre-wired plug in connection 
X 2 screws to affix PIR switch to wall box 
X 3 screw caps 
X 1 lens mask
Issue 3  November 2006 

Installation continued 
5. Insert top screw into the w all, allowing it to protrude by approximately 3mm. 
6. Hook wall box on to screw using keyhole slot prov ided. 
7. Mark position of remaining fixings, remove box and complete fixing. 
8. Fix the wall box to the wal l, ensuring the drain hole is at the bottom. 
9. Cable entries are made to the base of the box, using the holes provided. 
10. Connect circuit wiring to terminal block. (see Fig.2.) 
 N     N        SLI     L
N = Neutral to load 
N = Supply Neutral 
 = Earth terminal 
SLI = Supply to load 
L = Supply live 
11. Plug detector head into the back box socket. 
   Secure detector to wall box with screws provided and cover screws with screw caps. 
Adjusting PIR Range 
Limit the range and angle o f detection as appropriate by adjusting the detector head and by using the lens masking plates 
provided. Cut the appropriate segments from the lens m ask to cover the area of the lens that requires masking. 
A1  A2  A3  A4  Long Range 6-15 metres 
B1 B2 B3 B4 Inner Range 3-12 metres 
C1  C2  C3  C4  Short Range 0-3 metres 
   90º       45º        0        45º        90º 
15m 12m 3m 3m 12m 15m
C1 
B1 
A1 
B2 
C2 
C3 
C4 
B4 
A4 
B3 
90º 
45º 
A2 
A3 
45º 
0 
15m 
90º 
Masked Areas  Masked Areas 
AC A4  A1 A2 A4 
15m 
45º 
B3 B4  B1 B2 B4 
C3 C4 
C1 C2 C4 

Testing 
1. Set the light level 5 to maximum (clockwise), and the time on    to minimum (anti-clockwise). 
2. Move in and out of detection pattern checking the PIR detector switches load on and then off. Once the detection area has been set 
satisfactorily, adjust the time (blue knob) to the desired level. For your convenience optimum settings have been indicated. 
3. If the unit does not operate, refer to the check list and fault finding list. 
Check List 
1. Check the supply to the detector 
2. If the unit is being tested during daylight , ensure that the photocell has been adjusted in accordance with point 1 in the ‘Testing’ 
section. 
3. Check detector is connected to the heater correctly 
Fault Finding List 
Problem Solution 
The unit will not switch on 
Unit is detecting at too long a range 
Unit switches on for no apparent 
reason 
Unit will not switch off 
•  Check power is supplied to the unit 
•  Check the plug in connection from the detector head is inserted in to the wall box correctly 
•  Check to see that the lamps are fitted correctly to the heater(s) 
•  Check mounting height and adjust angle of the unit downwards to reduce range (note the unit is 
designed to switch at a maximum of 15 metres with 170Ib (77kg) person walking at 90º to the 
unit. Alternatively fit an appropriate mask. 
IMPORTANT: at 10ºC this unit may detect in excess of 20 metres. 
•  Check the unit is not sited near any vents or heating flues 
•  Infra-red patterns are given off by electrical appliances 
NOTE: to reduce sensitivity, blank off areas C1, C2, C3, C4 of the lens mask 
•  Are you standing by the detection zone? Whilst you are moving in and out of the detection area  
the unit will continue to detect. The heater on time is from the last moment detection was made. 
Technical Specification 
Switching capability – Up to 3kW 
Operating Power – 3kW 
Detection Range – 15 metres maximum 
Detection Angle - 180º 
Heater on time – Adjustable to 10 seconds, 60 seconds, 3.5 minutes, 6 minutes, 9 minutes, 12 minutes, 13.5 minutes,  
              16 minutes, 21 minutes (approximately) 
IMPORTANT: When unit is first connected to the mains the light will switch on – even in daylight. 
            Allow unit to reset before testing 
After Sales Care 
Your product is guaran teed for one year from the date of purchase. 
Within this period, we undertake to repair or excha ng e this product free of charge (subject to availability) provid ed it has been 
installed and operated in accordance with these instructions. 
Your rights under this guarantee are additional to your statutory rights, which in turn are not affected by this guarantee. 
Should you require after sales service you should contact the supplier through whom you purchased the product or contact our 
customer service help desk on 0845 600 5111. It would assist us if you can quote the model number, series, date of purchase, 
and nature of the fault at the time of your call. The customer service help desk will also be able to advise you should you need to 
purchase any spares. 
Please do not retu rn a faulty product to us in the first instance as this may result in loss or damage and delay in providing you 
with a satisfactory service. 
Please retain your receipt as proof of purchase 
Glen Dimplex UK Ltd 
Millbrook House 
Grange Drive 
Hedge End 
Southampton 
SO30 2DF
UK customer helpline  (8.00AM-6.00PM Mon-Fri; 8.30AM-1.0 0PM Sat) 
Customer helpline     Tel. 0845 600 5111 
                   Fax. 01489 773053 
                   e-mail. customer.services@glendimplex.com 
Republic of Ireland    Tel. 01 842 4833 
[C] Glen Dimplex UK Ltd. 
All rights reserved. Material contained in this publication may not be reproduced in whole or part, without the prior permission in writing from 
Glen Dimplex UK Limited.