Spirax Sarco B850-W-2 User manual

IM-P408-04 AB Issue 2 1
B850-W-2 and B850-P-2
Boiler House Energy Monitor
Quickstart Guide
2. Safety information
3. General product
and
delivery information
8. Mechanical installation
9. Electrical installation
10. Commissioning
15. Appendix
Please note that this is the 'Quickstart
Guide' and that all relevant Sections for
this product are contained in the main
Installation and Maintenance Instructions
IM-P408-03.
IM-P408-04
AB Issue 2
4080051 / 2
© Copyright 2015
Printed in Poland
B850-P-2
B850-W-2

IM-P408-04 AB Issue 2
2
2. Safety information
Safe operation of this product can only be guaranteed if it is properly installed,
commissioned, used and maintained by qualified personnel (see the following sections)
in compliance with the operating instructions. General installation and safety
instructions for pipeline and plant construction, as well as the proper use of tools and
safety equipment must also be complied with.
In the UK, your attention is drawn to IEE Regulations (BS 7671). Elsewhere, other
regulations will normally apply.
All wiring materials and methods shall comply with relevant EN and IEC standards
where applicable.
Warning
This product is designed and constructed to withstand the forces encountered during
normal use. Use of the product other than as a steam energy monitor, or failure to install
the product in accordance with these Instructions, product modifications or repair could:
-Cause damage to the product / property.
-Cause injury or fatality to personnel.
-Invalidate the marking.
Isolate the mains supply before opening the product as hazardous voltages may be
exposed.
These instructions must be stored in a safe place near the installation of the steam
energy monitor at all times.
Warning
This product complies with the requirements of the following directives and
harmonized standards:
Low Voltage Directive ( 2006 / 95 / EC) by meeting the standards of:
-EN 61010-1 Safety requirements for electrical equipment for measurement, control
and laboratory use.
Electromagnetic Compatibility (2004 / 108 / EC) by meeting the standards of:
-Immunity EN 61326-1 Table 2
-Radiated and conducted emissions EN 55011 and EN 55022 to Class B.
The product may be exposed to interference above the limits of EN 61326 if:
-The product or its wiring is located near a radio transmitter.
-Excessive electrical noise occurs on the mains supply. Power line protectors (ac)
should be installed if mains supply noise is likely. Protectors can combine filtering,
suppression, surge and spike arrestors.
-Cellular telephones and mobile radios may cause interference if used within
approximately 1 metre (39") of the product or its wiring. The actual separation
distance necessary will vary according to the surroundings of the installation and the
power of the transmitter.

IM-P408-04 AB Issue 2 3
The symbols, used on the product mean:
Equipment protected throughout by double insulation or reinforced
insulation.
Functional earth (ground) terminal, to enable the product to function
correctly.
Not used to provide electrical safety.
Caution, risk of electric shock.
Caution, risk of danger, refer to accompanying documentation.
Optically isolated current source or sink.
Caution, Electrostatic Discharge (ESD) sensitive circuit. Do not touch
or handle without proper electrostatic discharge precautions.
2.1 Intended use
i) Check that the product is suitable for use with the application.
ii) Determine the correct installation situation.
iii) Spirax Sarco products are not intended to withstand external stresses that may be
induced by any system to which they are fitted. It is the responsibility of the installer
to consider these stresses and take adequate precautions to minimise them.
2.2 Access
Ensure safe access and if necessary a safe working platform (suitably guarded)
before attempting to work on the product.
2.3 Lighting
Ensure adequate lighting, particularly where detailed or intricate work is required.
2.4 Hazardous environment around the product
Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases,
extremes of temperature, hot surfaces, fire hazard (e.g. during welding), excessive
noise, moving machinery.

IM-P408-04 AB Issue 2
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2.5 The system
Consider the effect on the complete system of the work proposed. Will any proposed
action (e.g. closing isolation valves, electrical isolation) put any other part of the
system or any personnel at risk?
Dangers might include isolation of vents or protective devices or the rendering
ineffective of controls or alarms. Ensure isolation valves are turned on and off in a
gradual way to avoid system shocks.
2.6 Tools and consumables
Before starting work ensure that you have suitable tools and / or consumables available.
2.7 Protective clothing
Consider whether you and / or others in the vicinity require any protective clothing
to protect against the hazards of, for example, chemicals, high / low temperature,
radiation, noise, falling objects, and dangers to eyes and face.
2.8 Permits to work
All work must be carried out or be supervised by a suitably competent person.
Installation and operating personnel should be trained in the correct use of the
product according to the Installation and Maintenance Instructions.
Where a formal 'permit to work' system is in force it must be complied with. Where
there is no such system, it is recommended that a responsible person should know
what work is going on and, where necessary, arrange to have an assistant whose
primary responsibility is safety.
Post 'warning notices' if necessary.
2.9 Handling
Manual handling of large and/ or heavy products may present a risk of injury. Lifting,
pushing, pulling, carrying or supporting a load by bodily force can cause injury
particularly to the back. You are advised to assess the risks taking into account the
task, the individual, the load and the working environment and use the appropriate
handling method depending on the circumstances of the work being done. Arrange
suitable lifting gear if required.
2.10 Disposal
The B850 contains a battery. On disposal of the unit or component, appropriate
precautions should be taken in accordance with Local / National regulations.
Unless otherwise stated in the Installation and Maintenance Instructions, with the
exception of the battery, this product is recyclable and no ecological hazard is
anticipated with its disposal providing due care is taken.
2.11 Returning products
Customers and stockists are reminded that under EC Health, Safety and Environment
Law, when returning products to Spirax Sarco they must provide information on any
hazards and the precautions to be taken due to contamination residues or mechanical
damage which may present a health, safety or environmental risk. This information
must be provided in writing including Health and Safety data sheets relating to any
substances identified as hazardous or potentially hazardous.

IM-P408-04 AB Issue 2 5
Certain computer programs contained in this product [or device] were
developed by Spirax-Sarco Limited ('the Work(s)').
Copyright © Spirax-Sarco Limited 2015
All Rights Reserved
Spirax-Sarco Limited grants the legal user of this product (or device) the right
to use the Work(s) solely within the scope of the legitimate operation of the
product (or device). No other right is granted under this licence. In particular
and without prejudice to the generality of the foregoing, the Work(s) may not
be used, sold, licensed, transferred, copied or reproduced in whole or in part
or in any manner or form other than as expressly granted here without the prior
written consent of Spirax-Sarco Limited.

IM-P408-04 AB Issue 2
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3. General product
and delivery information
The B850 is a flexible and easy to use Boiler House Energy Monitor that accurately calculates
the effieciency of the boiler based on measured inputs from fuel, feedwater, steam output,
condensate return and blowdown.
This Quickstart Guide will enable the rapid connection and commissioning of the energy monitor
- All the details for this are displayed in a simple and easy to read format.
Warning: This Guide is not intended as a substitute for the full Installation and Maintenance
Instructions IM-P408-03 that needs to be read by the person responsible for installing the unit.
3.1 Equipment delivery, handling and storage
Factory shipment
Prior to shipment, the Spirax Sarco B850 is tested, calibrated and inspected to ensure
proper operation.
Receipt of shipment
Each carton should be inspected at the time of delivery for possible external damage.
Any visible damage should be recorded immediately on the carrier's copy of the delivery slip.
Each carton should be unpacked carefully and its contents checked for damage:
Content of B850-P-2
1 x Energy monitor B850-P-2
2 x Fixing clamps
1 x Printed Quickstart Guide
1 x USB (Operating manual, configuration software)
1 x Set of terminal blocks
1 x Carton package
Content of B850-W-2
1 x Energy monitor B850-W-2
1 x Printed Quickstart Guide
1 x USB (Operating manual, configuration software)
1 x Carton package
If it is found that some items have been damaged or are missing, notify Spirax Sarco
immediately and provide full details. In addition, damage must be reported to the carrier with
a request for their on-site inspection of the damaged item and its shipping carton.
Storage
If an energy monitor is to be stored for a period prior to installation, the environmental storage
conditions should be at a temperature between -30°C and 70°C (-22°F and 158°F), and
between 5% and 95% relative humidity (non-condensing).
Before installing and connecting the power ensure there is no condensation within the
unit.

IM-P408-04 AB Issue 2 7
8. Mechanical installation
Note: Before actioning any installation observe the 'Safety information' in Section 2.
B850
The B850 is available for wall mounting B850-W-2 or for panel mounting B850-P-2.
Note: All versions must be fitted away from sources of excessive heat, electrical
interference and from all areas liable to flooding.
Safety note - product specific
The product must be protected from the environment and installed in one of the following ways:
Wall mounting
Fit cable glands / conduit with a minimum IP65 rating or install in a clean dry room to provide
a pollution degree 3 environment in accordance with EN 60529 (Specification for degrees
of protection provided by enclosures - IP code).
-Any unused cable glands / conduit entries must be sealed with an appropriate IP blind
grommet.
Panel mounting
The panel mount version of the B850 is supplied with an IP65 rated seal to be fitted between
the energy monitor and the panel it is to be mounted into.
Fig. 12 Panel mounting

IM-P408-04 AB Issue 2
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Environmental conditions
The energy monitor should be located in an environment that minimises the effects of heat,
vibration, shock and electrical interference.
The energy monitor should also be installed away from external magnetic fields, such as
those generated from electric motors and large transformers.
Other considerations
Be sure to allow sufficient clearance for:
-Installation of conduit / wiring.
-Viewing of the display.
8.1 Mounting instructions for the wall mounted B850-W-2:
1. Using the dimensions shown in Figure 13, drill 3 holes suitable for accepting 5 mm (No. 10)
screws.
2. Remove the terminals enclosure cover to expose the bottom mounting holes.
Fig. 13
3 x 5 mm (0.20")
Mounting
points
F
A
C
K
J
D IH
E
G
B
D
8.1.1 Dimensions (approximate in mm and inches)
A B C D E F G H I J K
2 57. 0 0
mm
5.00
mm
217. 0 0
mm
30.00
mm
10.60
mm
189.50
mm
10.00
mm
5 7. 5 0
mm
26.00
mm
121.00
mm
242.00
mm
10 .12 " 0.20" 8.54" 1.18 " 0.42" 7. 4 6 " 0.40" 2.26" 1.02" 4.76" 9.53"
D D

IM-P408-04 AB Issue 2 9
Bottom
mounting
eyelet
(access
through the
terminal
compartment)
Fig. 14
4. Slide the top mounting lug over
the proud screw.
5. Line up, and fit the screws to the
bottom mounting holes.
6. Refit the terminals enclosure
cover.
Note: Before actioning any
installation observe the 'Safety
information' in Section 2.
Top mounting lug (external)
Fig. 15
3. Fix an M5 (No. 10) screw to the surface for the top mounting. Leave the head of the screw
proud of the surface, just enough to allow the top mounting lug of the B850 to slide over.
Mounting screw left proud of surface to slot top mounting of B850 over.

IM-P408-04 AB Issue 2
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8.2 Mounting instructions for the panel mounted B850-P-2:
1. A rectangle aperture 186 mm (7 ") wide x 92 mm (3 ") high is required to mount the
panel mounted version of the B850 energy monitor.
2. Push the B850 through the aperture ensuring that the seal is fitted correctly.
3. From the reverse side of the panel, using the mounting points on the sides of the B850,
assemble the fixing clamps to the body.
4. Carefully wind in the clamps using the screwdriver slots to tighten the energy monitors to
the panel.
Fig. 16
Note: Screw clamps removed for clarity
Fig. 17
Clamp
screw
Clamp
screw
Side view
Bottom view

IM-P408-04 AB Issue 2 11
Note: Before actioning any installation observe the 'Safety information' in Section 2.
9.1 Important - please read the following general wiring notes:
Every effort has been made during the design of the energy monitor to ensure the safety of
the user but the following precautions must be followed:
1. Installation personnel must be suitably qualified in working with equipment containing
hazardous live voltages.
2. Ensure correct installation. Safety may be compromised if the installation of the product
is not carried out as specified in this manual.
3. Always isolate the energy monitor from the mains supply before opening the unit.
4. The design of the energy monitor relies on the building installation for overcurrent
protection and primary isolation.
5. Overcurrent protection devices rated at 1 amp must be included in all phase conductors
of the installation wiring. If overcurrent protection is included in both supply wires then the
operation of one must also cause the operation of the other. Refer to IEC 60364 (Electrical
Installations of Buildings) or prevalent local standard for full details of requirements for
overcurrent protection.
6. Overcurrent protection devices must be fitted to the relay circuit and appropriately rated
for the given loads stated in the technical data.
7. Relay contacts must be supplied at the same phase as the product's mains supply.
8. The wall energy monitor (B850-W-2) is designed as an installation category product.
9. Wiring should be carried out in accordance with IEC 60364 or prevalent local standards.
10. All external circuits must meet and maintain the requirements of double / reinforced
installation as stated in IEC 60364 or equivalent.
11. Additional protection must be provided to prevent accessible parts (e.g. signal circuits)
from becoming Hazardous Live if a wire or screw is accidentally loosened or freed. Ensure
all wires are secured to at least one other wire from the same circuit. The attachment
must be as close to the terminal block as possible but must not apply undue stress on
the connection. Example, use a cable tie to secure the live and neutral wire together.
If one wire becomes loose the other wire will prevent it from touching accessible parts.
12. A disconnecting device (switch or circuit breaker) must be included in the building
installation. It must:
- Have a rating with sufficient breaking capacity.
- Be in close proximity to the equipment, within easy reach of the operator but not
cause difficulty in operating.
- Disconnect all phase conductors.
- Be marked as the disconnecting device for the energy monitor.
- Not interrupt a protective earth conductor.
- Not be incorporated into a mains supply cord.
- Comply with the requirements for a disconnecting device specified in IEC 60947-1
(Specification for low-voltage switchgear and controlgear - General rules) and
IEC 60947-3 (Switches, disconnectors, switch-disconnectors and fuse-combination
units).
9. Electrical installation

IM-P408-04 AB Issue 2
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13. It is important that the cable screens are connected as shown in order to comply with
the electromagnetic compatibility requirements.
14. To keep the integrity of the IP rating, consideration must be taken when planning the
installation of the wiring between the B850 and the various sensors and meters. It is
recommended that one or more electrical junction boxes are used. Multicore cabling can
be used between junction boxes to make the installation more efficient.
9.2 Important - Please read the following general mains wiring notes:
1. The wiring connections are identified on the label inside the terminal cover of the wall
mounting version.
2. Fuses should be fitted in all live conductors.
Disconnect device conforming
to IEC 60947-1 and
IEC 60947-3
L
N
L
N
1 A fuse
B850 240 / 100 Vac
from supply
Single phase supply with neutral at earth potential
3. Double or reinforced insulation must be maintained between:
- Hazardous live conductors (mains and relays circuits)
and
- Safety extra low voltages (All other components / connectors / conductors).
4. The wiring diagrams show relays and switches in the power off position.
Mains and signal wiring:
For cable / wire recommendations see IM-P408-03 Boiler House Energy Monitor Installation
and Maintenance Instructions.
Screen connection
An earth current loop is created if a wire or screen is connected between two earth points,
which are at different potential (voltage). If the instructions are followed correctly, then the
screen will only be connected to the earth at one end.
The earth terminal is a functional earth rather than a protective earth.
A protective earth provides protection from electric shock under a single fault condition. This
product has double insulation and therefore does not require a protective earth. A functional
earth is used in order for the product to operate. In this application, the earth is used as a sink
or drain for any electrical interference. The screens must be connected to the earth terminal
in order to conform to the EMC directive.
Disconnect device conforming
to IEC 60947-1 and
IEC 60947-3
L
N
L1
L2
B850 240 / 100 Vac
from supply
1 A fuses

IM-P408-04 AB Issue 2 13
Wall mounted B850-W-2 boiler house energy monitor
L
N
E
1
2
3
13
14
15
19
20
21
1 A fuse
Relay 1 (of 4)
Relay 1 (of 4)
Relay 1 (of 4)
RS-485
RS-485
RS-485
Out 1 (of 2)
Out 1 (of 2)
L
N
E
N / O
COM
N / C
A(+)
B(-)
GND
I+
I-
100-240 Vac from supply
Voltage free contacts
30 Vdc 0.1 A
240 Vac 3 A
Modbus
RTU slave
4 - 20 mA
Output
Ethernet LAN
RJ-45
Wiring diagram
from
Section 15, Appendix, IM-P408-03

IM-P408-04 AB Issue 2
14
25
28
29
30
26
31
32
33
27
34
35
36
46
37
38
39
47
40
41
42
49
50
52
53
51 / 54
55
56
58
59
57 / 60
67
68
69
70
71
72
IN 1
IN 1
IN 2
IN 2
IN 3
IN 3
IN 4
IN 4
IN 5
IN 5
IN 7
IN 7
IN 7
IN 7
IN 8
IN 8
IN 8
IN 8
IN 10
IN 10
IN 11
IN 11
+24 V
I +
+24 V
I +
+24 V
I +
+24 V
I +
I +
I -
I +
I -
U +
U -
I +
I -
U +
U -
F +
F -
F +
F -
0 / 4 - 20 mA
ILVA flowmeter for steam
(m bar or psi)
0 / 4 - 20 mA
EL2600 pressure sensor
for steam pressure, (bar g or psi g)
0 / 4 - 20 mA
ELM flowmeter for feedwater
(m3/ h or gal / m)
0 / 4 - 20 mA
ELM flowmeter for condensate
return (m3/ h or gal / m)
0 / 4 - 20 mA
MTL10 flowmeter for GAS
(m3/ h or ft3/ m)
PRT
EL2270 temperature probe
for feedwater temperature
PRT
EL2270 temperature probe
for condensate return temperature
State
TDS blowdown valve '0 Volt' contact
State
BBD blowdown valve '0 Volt' contact
Recommended inputs B850-W-2
from Section 15, Appendix, IM-P408-03

IM-P408-04 AB Issue 2 15
Panel mounted B850-P-2 boiler house energy monitor
+
_
1
2
3
16
17
13
14
15
19
5
4
Relay 1 (of 4)
Relay 1 (of 4)
RS-485
RS-485
RS-485
Out 1 (of 2)
Out 1 (of 2)
A(+)
B(-)
GND
I+
I-
24 Vdc
8 W maximum
Solid state relay
24 V 0.1 A
Modbus
RTU slave
4 - 20 mA
Output
Ethernet LAN
RJ-45
Wiring diagram
from
Section 15, Appendix, IM-P408-03

IM-P408-04 AB Issue 2
16
27
24
25
26
31
28
29
30
35
32
33
34
39
36
37
38
43
40
41
42
48
51
49
50
52
53
56
54
55
57
63
64
65
66
67
68
IN 1
IN 1
IN 2
IN 2
IN 3
IN 3
IN 4
IN 4
IN 5
IN 5
IN 7
IN 7
IN 7
IN 7
IN 8
IN 8
IN 8
IN 8
IN 10
IN 10
IN 11
IN 11
+24 V
I +
+24 V
I +
+24 V
I +
+24 V
I +
I +
I -
I +
I -
U +
U -
I +
I -
U +
U -
F +
F -
F +
F -
0 / 4 - 20 mA
ILVA flowmeter for steam
(m bar or psi)
0 / 4 - 20 mA
EL2600 pressure sensor
for steam pressure, (bar g or psi g)
0 / 4 - 20 mA
ELM flowmeter for feedwater
(m3/ h or gal / m)
0 / 4 - 20 mA
ELM flowmeter for condensate
return (m3/ h or gal / m)
0 / 4 - 20 mA
MTL10 Flowmeter for GAS
(m3/ h or ft3/ m)
PRT
EL2270 temperature probe
for feedwater temperature
PRT
EL2270 temperature probe
for condensate return temperature
State
TDS blowdown valve '0 Volt' contact
State
BBD blowdown valve '0 Volt' contact
Recommended inputs B850-P-2
from Section 15, Appendix, IM-P408-03

IM-P408-04 AB Issue 2 17
10. Commissioning
10.19 B850 energy monitor commissioning using
PC software for quick start-up
The B850 energy monitor can be commissioned via the key pad on the front panel of the unit
itself, or via separate PC software.
The B850 is supplied with a USB memory stick which contains the PC software, product
manuals and associated files.
For quick start commissioning the PC software is used and illustrated in this manual.
1. Plug the memory stick into a suitable empty USB connection on your PC / laptop.
2. Using the windows operating sytem locate the PC Software on the memory stick (the
file name is '850 vX.00.00_RC', where X is the version number).
The icon looks like
The software can be run from the memory stick or copied onto your PC / laptop.
3. Double click on the icon to run the software. If presented with security warnings say yes
to continue, or contact your IT administrator for guidance.
4. Select the language you wish the software to use (English, French, German, Spanish,
Portugese or Polish).
'Click' OK

IM-P408-04 AB Issue 2
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10.20 Units and fuel selection
A grey screen will appear.
To create a new BEM configuration 'Click' on File / New Settings and select either imperial
or metric units, a pop up will appear allowing you to choose your fuel type.
This Quickstart IM has been written to be used in conjuction with the 'Gas-Quickstart' option,
choose 'Custom' options if you requiring a different configuration.
Select units and then 'Gas - Quickstart' or 'fuel type - custom'.
To open an existing BEM configuration 'Click' on File / Open Settings file (*.SET).

IM-P408-04 AB Issue 2 19
Use the windows operating system to locate and load the desired configuration file.
Select fuel type that the configuration was designed for and click OK.

IM-P408-04 AB Issue 2
20
10.21 BEM gas configuration quick start
A partly configured BEM configuration will be presented.
Main applications
The process values and inputs have been partly pre-configured for the following applications:
A. Steam output.
B. Feedwater.
C. Condensate return.
Control buttons:
D. Undo / Redo Arrows - Allows you to undo and redo your last changes.
E. Forward and Back - Returns to the previous screen and moves back to the most recent
screen.
F. Returns you to the main application and its process values.
G. Click for main applications.
H. Click for process values.
I. Set up for inputs.
J. Set up for Relay Outputs.
K. Configure Archives.
L. Click to configure how data is displayed on the B850's display.
M. Setup the communications outputs.
N. Media and characteristic manager.
O. Admin and User configuration.
P. Help and Comments appear throughout the software application.
Auxiliary applications
Calculations and inputs have been partly pre-configured for the following auxiliary applications:
X. Fuel supply.
Y. Blowdown.
Z. Boiler efficiency.
D E F G H I J K L M N O
A
B
C
P
X Y Z