Siemens QRB1 Series User manual

CC1N7714en
17.07.2006
Building Technologies
HVAC Products
7714
QRB1...A with large flange QRB1...A with small flange QRB1...B QRB3... with
and clamp and clamp with plug flange and clamp
Photoresistive
Flame Detectors QRB1...
QRB3...
Photoresistive detectors for use with Siemens burner controls, for the supervi-
sion of oil flames in the visible light spectrum.
The QRB… are used primarily in connection with oil burner controls in intermit-
tent operation.
The QRB... and this Data Sheet are intended for use by OEMs which integrate the
flame detectors in their products.
Use
The QRB... flame detectors are designed for the supervision of yellow-burning oil
flames in connection with burner controls type LAL..., LOA..., LMO... and LMV…
They are suited for frontal or lateral (90°) illumination.
The maximum spectral sensitivity of the QRB… is about 600 nm, thus giving full con-
sideration to the maximum level of visible light radiation of yellow-burning oil flames.
Since the QRB… also acquires certain parts of the radiation spectrum of other light
sources (boiler room lighting, solar radiation, etc.), the standard regulations regarding
safety in connection with extraneous light still apply.

2/7
Building Technologies CC1N7714en
HVAC Products 17.07.2006
Warning notes
To avoid injury to persons, damage to property or the environment, the following
warning notes should be observed!
Do not open, interfere with or modify the flame detector!
•All activities (mounting, installation and service work, etc.) must be performed by
qualified staff
•Before making any wiring changes in the connection area of the QRB..., the burner
control must be completely isolated from mains supply (all-polar disconnection)
•Ensure protection against electric shock hazard by providing adequate protection
for the connection terminals
•Each time work has been carried out (mounting, installation, service work, etc.),
check to ensure that wiring is in an orderly state and make the safety checks as
described in «Commissioning notes»
•Fall or shock can adversely affect the safety functions. Such detectors must not be
put into operation even if they do not exhibit any damage
Mounting notes
•Ensure that the relevant national safety regulations are complied with
Installation notes
•Always run the detector cable separate from other cables, especially from the high-
voltage ignition cable, while observing the greatest possible distance
It is important to achieve practically disturbance- and loss-free signal transmission:
•Never run the detector cable together with other cables
– Line capacitance reduces the magnitude of the flame signal
– Use a separate cable
•Observe the permissible length of the detector cables (refer to «Technical data»)
Commissioning notes
•The intensity of the radiation of light on site is checked by measuring the detector
current
•For information about the measuring circuit and the minimum detector current val-
ues required, refer to the Data Sheet of the relevant type of burner control
Standards and certificates
Conformity to EEC directives
- Electromagnetic compatibility EMC (immunity) 89 / 336 / EEC
ISO 9001: 2000
Certificate 00739 ISO 14001: 2004 Certificate 38233
Service notes
•When cleaning the detector, never use burner cleansing spray. Always use a clean
cloth
Only in connection with
burner controls type
LAL…and LMV…

3/7
Building Technologies CC1N7714en
HVAC Products 17.07.2006
Mechanical design
Compact photoresistive flame detector with infused 2-wire thermoplastic cable.
The detector is available with normal sensitivity, high sensitivity, or selected higher
sensitivity, with or without flange / clamp or soft plastic plug (refer to «Type summary»).
Flame detector without soft plastic plug.
This type of detector is fitted with the help of a flange.
A guide groove in the securing flange and a cam on the detector clamp ensure vibra-
tion-free mounting and make certain that the detector is always correctly sited towards
the flame.
Flame detector with soft plastic plug.
For mounting this type of detector on the burner, all that is required is a hole with a
lateral groove (refer to «Dimensions»).
The sealing and securing ribs of the soft plastic plug hold the detector firmly in the hole.
The guide spring guarantees correct alignment of the photoresistive element with the
flame.
•Small flange, 21 mm spacing, plastic version
•Large flange, 36 mm spacing, plastic version
•Clamp, plastic version
The detector is supplied with a metal protective tube having a diameter of 17 mm.
This type of detector is always secured with a flange and a clamp (refer to «Accesso-
ries QRB3…»).
•Flange, metal version
•Clamp, metal version
General
QRB1...A
QRB1...B
A
ccessories QRB1…
QRB3...
A
ccessories QRB3…

4/7
Building Technologies CC1N7714en
HVAC Products 17.07.2006
Type summary
QRB1… ¹) These types of flame detectors are not available in all countries!
Sensitivity /
casing color Accessories (included)
Type reference ¹)
Normal / black High / red High, selected / blue
Casing length ”g“ (mm) Visible cable length ”l“ (cm) Stripped length ”m“ (mm) Plug
End of cable
Small flange / clamp Large flange / clamp
QRB1A-A020B40A x --- --- 50 20 40 Without Ferrule --- ---
QRB1A-A020B40A2 x --- --- 50 20 40 Without Ferrule --- x
QRB1A-A033B40B x --- --- 50 33 40 With Ferrule --- ---
QRB1A-A035B40A x --- --- 50 35 40 Without Ferrule --- ---
QRB1A-A035B40A1 x --- --- 50 35 40 Without Ferrule x ---
QRB1A-A048B70B x --- --- 50 48 70 With Ferrule --- ---
QRB1A-A050B40A x --- --- 50 50 40
Without Ferrule --- ---
QRB1A-A050B40A1 x --- --- 50 50 40
Without Ferrule x ---
QRB1A-A050B40A2 x --- --- 50 50 40
Without Ferrule --- x
QRB1A-A050B70A x --- --- 50 50 70
Without Ferrule --- ---
QRB1A-A050B70A1 x --- --- 50 50 70
Without Ferrule x ---
QRB1A-A050B70A2 x --- --- 50 50 70
Without Ferrule --- x
QRB1A-A068B70B x --- --- 50 68 70 With Ferrule --- ---
QRB1A-A070B70A x --- --- 50 70 70
Without Ferrule --- ---
QRB1A-A070B70A1 x --- --- 50 70 70
Without Ferrule x ---
QRB1A-A070B70A2 x --- --- 50 70 70
Without Ferrule --- x
QRB1A-A070B70B x --- --- 50 70 70 With Ferrule --- ---
QRB1A-A080B70A x --- --- 50 80 70 Without Ferrule --- ---
QRB1A-A148B70B x --- --- 50 148 70 With Ferrule --- ---
QRB1A-A150B70A x --- --- 50 150 70
Without Ferrule --- ---
QRB1A-A150B70A1 x --- --- 50 150 70
Without Ferrule x ---
QRB1A-A150B70A2 x --- --- 50 150 70
Without Ferrule --- x
QRB1A-B027A25A x --- --- 65 27 25
Without Unstripped --- ---
QRB1A-B030A25A x --- --- 65 30 25
Without Unstripped --- ---
QRB1A-B030B40A x --- --- 65 30 40
Without Ferrule --- ---
QRB1A-B080B70A x --- --- 65 80 70
Without Ferrule --- ---
QRB1B-A014U25B --- x --- 50 14 25 With Connector AGK53.0 --- ---
QRB1B-A017A25B --- x --- 50 17 25 With Unstripped --- ---
QRB1B-A018B40B --- x --- 50 18 40 With Ferrule --- ---
QRB1B-A033B40B --- x --- 50 33 40 With Ferrule --- ---
QRB1B-A035B40A --- x --- 50 35 40
Without Ferrule --- ---
QRB1B-A035B40A1 --- x --- 50 35 40
Without Ferrule x ---
QRB1B-A042B20B --- x --- 50 42 20 With Ferrule --- ---
QRB1B-A048B40B --- x --- 50 48 40 With Ferrule --- ---
QRB1B-A048B70B --- x --- 50 48 70 With Ferrule --- ---
QRB1B-A050B40A --- x --- 50 50 40
Without Ferrule --- ---
QRB1B-A050B70A --- x --- 50 50 70
Without Ferrule --- ---
QRB1B-A050B70A1 --- x --- 50 50 70
Without Ferrule x ---
QRB1B-A050B70A2 --- x --- 50 50 70
Without Ferrule --- x
QRB1B-A068B70B --- x --- 50 68 70 With Ferrule --- ---

5/7
Building Technologies CC1N7714en
HVAC Products 17.07.2006
Type summary (cont´d)
QRB1… ¹) These types of flame detectors are not available in all countries!
Sensitivity /
casing color Accessories (included)
Type reference ¹)
Normal / black High / red High, selected / blue
Casing length ”g“ (mm) Visible cable length ”l“ (cm) Stripped length ”m“ (mm) Plug
End of cable
Normal / black High / red
QRB1B-A070B40A1 --- x --- 50 70 40
Without Ferrule x ---
QRB1B-A070B70A --- x --- 50 70 70
Without Ferrule --- ---
QRB1B-A070B70A1 --- x --- 50 70 70
Without Ferrule x ---
QRB1B-A070B70A2 --- x --- 50 70 70
Without Ferrule --- x
QRB1B-A070B70B --- x --- 50 70 70 With Ferrule --- ---
QRB1B-A078B70B --- x 50 78 70 With Ferrule --- ---
QRB1B-A148B70B --- x --- 50 148 70 With Ferrule --- ---
QRB1B-B030A25A --- x --- 65 30 25
Without Unstripped --- ---
QRB1B-B035B40A --- x --- 65 35 40
Without Ferrule --- ---
QRB1B-C036B40A --- x --- 105 36 40
Without Ferrule --- ---
QRB1B-D025B40B --- x --- 137 25 40
With Ferrule --- ---
QRB1B-D042B20B --- x --- 137 42 20
With Ferrule --- ---
QRB1C-A050B40A ---
--- x 50 50 40 Without Ferrule --- ---
QRB1C-B030A25A ---
--- x 65 30 25 Without Unstripped --- ---
QRB1C-B080B70A ---
--- x 65 80 70 Without Ferrule --- ---
Item Part number ¹)
Small flange, 21 mm spacing 4 241 1462 0
Large flange, 36 mm spacing 4 241 1600 0
Clamp 4 186 1096 0
¹) To be specified when ordering individual items
Type reference Flange Clamp Feature Sensitivity
QRB3 Without Without Protective tube Normal
QRB3(1) With With Protective tube Normal
QRB3S Without Without Protective tube High
QRB3S(1) With With Protective tube High
Item Part number ¹)
Flange 4 286 1490 0
Clamp 4 186 8806 0
¹) To be specified when ordering individual items
A
ccessories QRB1…
(version without plug)
QRB3...
A
ccessories QRB3…

6/7
Building Technologies CC1N7714en
HVAC Products 17.07.2006
Ordering When ordering, please give type reference according to «Type summary».
QRB1… with plug is always to be ordered without flange / clamp, and vice versa.
QRB1A-A035B40A •Sensitivity: Normal
•Casing length: 50 mm
•Visible cable length: 35 cm
•Stripped length: 40 mm
•End of cable: With ferrule
•Without plug
•Accessories: Without flange / clamp
QRB1A-A035B40A1 As above, but with:
•Accessories: Small flange / clamp included
Technical data
Degree of protection IP40
Mounting position optional
Detector cable (only QRB1…) stranded copper wire 2 x 0.75 mm²
jacket 5.1 mm dia., PVC
cable length according to «Type summary»
Weight
-QRB1... (depending on type)
-QRB3... (without cable)
approx. 20...35 g
approx. 35 g
Storage DIN EN 60721-3-1
Climatic conditions class 1K3
Mechanical conditions class 1M2
Temperature range -20...+60 °C
Humidity < 95 % r.h.
Transport DIN EN 60 721-3-2
Climatic conditions class 2K2
Temperature range -20...+60 °C
Humidity < 95 % r.h.
Operation DIN EN 60 721-3-3
Climatic conditions class 3K5
Mechanical conditions class 2M2
Temperature range -20...+60 °C
Humidity < 95 % r.h.
Condensation, formation of ice and ingress of water are not permitted!
Function
Supervision of light radiation of oil flames in the visible range of the light spectrum.
The light-sensitive element is a photoresistor whose electrical dark resistance lies in the
MΩrange.
As the intensity of light increases, the electrical resistance drops to the kΩrange and is
evaluated by the burner control for generating the flame signal.
In contrast to RAR selenium photocell of the detectors, glowing firebrick in the combus-
tion chamber can be detected.
Example
General detector data
Environmental
conditions

7/7
Building Technologies CC1N7714en
HVAC Products 17.07.2006
Dimensions
Dimensions in mm
3.6
28
21
4 241 1462 0
m
l
8.8
g8
4 186 1096 0
26
4,6
45
36
16
4 241 1600 0
13,5
8.8
9
g
lm
4.6
26
45
36
9
4 286 1490 0
79
4 186 8806 0
10 QRB3...
20
7
A
A
7714m04e/0706
14.2
15.6
2
17
QRB1...A without plug
QRB1...B with plug
QRB3...
A
m
l
8.8
g
A
QRB1... with connector AGK56.38
m
l
8.8
g
A
QRB1... with connector AGK53.0
©2006 Siemens Building Technologies HVAC Products GmbH
Subject to change!