Lochinvar EcoShield SHW35-245CE Guide

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Installation Manual_EcoShield_October 2018
EcoShield™
Gas Fired Condensing
Water Heaters
MODELS
SHW35-245CE
SHW46-325CE
SHW61-325CE
SHW86-410CE
SHW116-410CE
SHW146-410CE
Installation, Commissioning, &
Maintenance instructions

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Table of Contents
1.0 INTRODUCTION.......................................................................................................................................................................................................................................................................5
2.0 SAFETY GUIDELINES.............................................................................................................................................................................................................................................................6
2.1 GENERAL DESCRIPTION OF SAFETY SYMBOLS USED.................................................................................................................................................................................................................. 6
2.2 WHAT TO DO IF YOU SMELL GAS ...................................................................................................................................................................................................................................................... 7
3.0 PRINCIPLE PARTS..................................................................................................................................................................................................................................................................8
4.0 TECHNICAL DATA ................................................................................................................................................................................................................................................................10
5.0 DIMENSIONS AND CLEARANCE ........................................................................................................................................................................................................................................11
5.1 DIMENSIONS........................................................................................................................................................................................................................................................................................ 11
5.2 CLEARANCES ...................................................................................................................................................................................................................................................................................... 12
6.0 GENERAL REQUIREMENTS ................................................................................................................................................................................................................................................13
6.1 RELATED DOCUMENTS ..................................................................................................................................................................................................................................................................... 13
7.0 WATER QUALITY ..................................................................................................................................................................................................................................................................14
8.0 LOCATION..............................................................................................................................................................................................................................................................................14
8.1 PLANT ROOM REQUIREMENTS ........................................................................................................................................................................................................................................................ 14
8.2 GENERAL REQUIREMENTS ............................................................................................................................................................................................................................................................... 14
8.3 CONDENSATE DRAIN ......................................................................................................................................................................................................................................................................... 14
9.0 GAS SUPPLY .........................................................................................................................................................................................................................................................................15
9.1 SERVICE PIPES ................................................................................................................................................................................................................................................................................... 15
9.2 METERS................................................................................................................................................................................................................................................................................................ 15
9.3 GAS SUPPLY PIPES ............................................................................................................................................................................................................................................................................ 15
9.4 BOOSTED SUPPLIES .......................................................................................................................................................................................................................................................................... 15
9.5 PLANT-ROOM CONTROL VALVE....................................................................................................................................................................................................................................................... 15
9.6 EQUIPMENT GAS SYSTEM LEAK CHECK ........................................................................................................................................................................................................................................ 15
10.0 FLUE SYSTEM .......................................................................................................................................................................................................................................................................16
10.1 FLUE SYSTEM GENERAL REQUIREMENTS .................................................................................................................................................................................................................................... 16
10.2 FLUE DISCHARGE............................................................................................................................................................................................................................................................................... 18
10.3 CONDENSATE DRAIN ......................................................................................................................................................................................................................................................................... 18
10.4 FLUE SYSTEM GENERAL REQUIREMENTS .................................................................................................................................................................................................................................... 19
10.5 APPROVED FLUE SYSTEM ................................................................................................................................................................................................................................................................ 19
10.6 INSTALLATION PRECAUTIONS ......................................................................................................................................................................................................................................................... 19
10.7 CONDENSATE DRAIN ......................................................................................................................................................................................................................................................................... 19
10.8 TYPE B23 CONVENTIONAL FANNED FLUE ....................................................................................................................................................................................................................................... 19
10.9 ROOM SEALED (TYPE C) FLUE ASSEMBLY .................................................................................................................................................................................................................................... 20
10.10 C13 CONCENTRIC HORIZONTAL FLUE SYSTEMS ................................................................................................................................................................................................................. 22
10.11 HORIZONTAL FLUE TERMINAL INSTALLATION ...................................................................................................................................................................................................................... 23
10.12 FLUE TERMINAL GUARDING...................................................................................................................................................................................................................................................... 23
10.13 C33 CONCENTRIC VERTICAL FLUE SYSTEMS ....................................................................................................................................................................................................................... 24
10.14 VERTICAL FLUE TERMINAL INSTALLATION ............................................................................................................................................................................................................................ 24
10.15 C43 COMMON VENTED FLUE SYSTEMS IN MULTI FLOOR BUILDINGS................................................................................................................................................................................ 30
10.16 C53 (TWIN PIPE) FLUE SYSTEMS ............................................................................................................................................................................................................................................... 31
10.17 FLUE TERMINAL GUARDING...................................................................................................................................................................................................................................................... 35
10.18 TYPE B23 (CONVENTIONAL FLUE WITH FAN ASSISTANCE).................................................................................................................................................................................................. 36
10.19 C63 CERTIFIED FLUE SYSTEMS................................................................................................................................................................................................................................................. 37
11.0 AIR SUPPLY...........................................................................................................................................................................................................................................................................38
11.1 COMBUSTION VENTILATION ............................................................................................................................................................................................................................................................. 38
11.2 COOLING VENTILATION ..................................................................................................................................................................................................................................................................... 38
12.0 WATER CONNECTIONS .......................................................................................................................................................................................................................................................39
12.1 GENERAL.............................................................................................................................................................................................................................................................................................. 39
12.2 OPEN VENTED SYSTEM ARRANGEMENT ....................................................................................................................................................................................................................................... 39
12.3 UNVENTED SYSTEM ARRANGEMENT ............................................................................................................................................................................................................................................. 40
13.0 ELECTRICAL SUPPLY..........................................................................................................................................................................................................................................................42
13.2 EXTERNAL CONTROLS ...................................................................................................................................................................................................................................................................... 43
13.3 MAINS POWER SUPPLY ..................................................................................................................................................................................................................................................................... 43
13.4 LOW VOLTAGE CONNECTOR STRIP................................................................................................................................................................................................................................................ 44
13.5 ELECTRICAL CONNECTIONS ............................................................................................................................................................................................................................................................ 45
13.6 FUSES................................................................................................................................................................................................................................................................................................... 45
13.7 ARC WELDING PRECAUTIONS.......................................................................................................................................................................................................................................................... 45
13.8 WIRING DIAGRAM ............................................................................................................................................................................................................................................................................... 46
13.9 LADDER DIAGRAM .............................................................................................................................................................................................................................................................................. 47
14.0 USER CONTROL INTERFACE .............................................................................................................................................................................................................................................48
14.1 GENERAL.............................................................................................................................................................................................................................................................................................. 48
14.2 USER CONTROL INTERFACE PANEL ............................................................................................................................................................................................................................................... 48
14.3 SEQUENCE OF OPERATION.............................................................................................................................................................................................................................................................. 49
15.0 COMMISSIONING AND TESTING ........................................................................................................................................................................................................................................51
15.1 ELECTRICAL INSTALLATION ............................................................................................................................................................................................................................................................. 51
15.2 GAS INSTALLATION ............................................................................................................................................................................................................................................................................ 51
15.3 WATER CONNECTIONS...................................................................................................................................................................................................................................................................... 51
15.4 COMMISSIONING THE EQUIPMENT ................................................................................................................................................................................................................................................. 51
15.5 TEMPERATURE ADJUSTMENT PROCEDURE ................................................................................................................................................................................................................................. 52
15.6 INSTALLATION NOISE......................................................................................................................................................................................................................................................................... 52
16.0 LPG FUEL...............................................................................................................................................................................................................................................................................53
16.1 RELATED DOCUMENTS ..................................................................................................................................................................................................................................................................... 53
16.2 CONVERSION TO LPG........................................................................................................................................................................................................................................................................ 53
16.3 LPG COMMISSIONING AND TESTING .............................................................................................................................................................................................................................................. 56
17.0 MAINTENANCE......................................................................................................................................................................................................................................................................57
17.1 GENERAL.............................................................................................................................................................................................................................................................................................. 57
17.2 BURNER INSPECTION ........................................................................................................................................................................................................................................................................ 57
17.3 BURNER REMOVAL............................................................................................................................................................................................................................................................................. 57
17.4 CLEANING THE HEAT EXCHANGER................................................................................................................................................................................................................................................. 58
17.5 DRAINING THE WATER HEATER SYSTEM ...................................................................................................................................................................................................................................... 58
17.6 STORAGE VESSEL: INSPECTION AND CLEANING......................................................................................................................................................................................................................... 58
17.7 SACRIFICIAL ANODES: INSPECTION AND REPLACEMENT .......................................................................................................................................................................................................... 59
17.8 REFILLING THE SYSTEM.................................................................................................................................................................................................................................................................... 59

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17.9 OTHER CHECKS.................................................................................................................................................................................................................................................................................. 59
18.0 USER CONTROL INTERFACE SETTINGS ..........................................................................................................................................................................................................................61
18.1 TIME AND DATE................................................................................................................................................................................................................................................................................... 61
18.2 USER ADJUSTABLE PARAMETERS SCREEN .................................................................................................................................................................................................................................61
18.3 INSTALLER ADJUSTABLE PARAMETERS SCREEN........................................................................................................................................................................................................................ 62
18.4 PASTEURISATION FUNCTION (USING NIGHT SET BACK FACILITY) ........................................................................................................................................................................................... 63
18.5 NIGHT SETBACK SCREEN ................................................................................................................................................................................................................................................................. 65
18.6 SERVICE MODE SCREEN................................................................................................................................................................................................................................................................... 65
18.7 ERROR LOG SCREEN......................................................................................................................................................................................................................................................................... 65
19.0 TROUBLESHOOTING ...........................................................................................................................................................................................................................................................66
19.1 CHECKING TEMPERATURE SENSORS ............................................................................................................................................................................................................................................ 66
19.2 TROUBLESHOOTING CHART ............................................................................................................................................................................................................................................................ 66
19.3 ERROR CODES.................................................................................................................................................................................................................................................................................... 67
20.0 ErP SPECIFICATION DATA SHEET.....................................................................................................................................................................................................................................70
21.0 USER INSTRUCTIONS ..........................................................................................................................................................................................................................................................70

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1.0 INTRODUCTION
The Lochinvar EcoShield™ range is a floor standing direct gas-fired condensing storage water heater. The equipment comprises a
stainless steel mesh radial burner assembly; a heat exchanger that permits fully condensing operation, a vitreous enamel lined steel
storage vessel, a Stainless Steel circulating pump and interconnecting pipework between the storage vessel and heat exchanger.
The burner is initiated by a full electronic ignition sequence control that incorporates a spark ignition and a flame rectification device
for supervision of the flame.
The output from the water heater is regulated by a variable speed combustion fan and gas/air ratio controls to maintain the correct
combustion at all levels of modulation. This configuration allows modulation down to 20% of the rated output.
This equipment is intended for use on Group H Natural Gas (2nd Family) and LPG propane (3rd Family). The information relating to
propane firing is to be found in Section 16.0: LPG FUEL.
This equipment MUST NOT use gas other than that for which it has been designed and adjusted.
This equipment must be installed by a competent person, registered with a HSE approved body. All installations must conform to the
relevant Gas Safety and Building Regulations. Health & Safety requirements must also be taken into account when installing any
equipment. Failure to comply with the above may lead to prosecution.
If the equipment is to be connected to an unvented (pressurised) system, care must be taken to ensure all extra safety requirements
are satisfied should a high or low-pressure condition occur in the system.
The equipment is designed for direct connection to a flue system.
Ancillary Options:
Unvented Water System Kits SHW35-SHW61 WH19
Unvented Water System Kits SHW86-SHW146 WH21
De-stratification Pump Kit WH9
Condensate Neutralisation Kit KIT2000
Flue System Components See section 10.0

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2.0 SAFETY GUIDELINES
READ AND UNDERSTAND THE INSTRUCTIONS
Read and fully understand all instructions before attempting to operate maintain or install the unit.
Keep these instructions near the water heater for quick reference.
This equipment must be installed by a competent person, registered with the H.S.E. approved body. All installations must conform to the
relevant Gas Safety and Building Regulations. Health & Safety requirements must also be taken into account when installing any equipment.
Failure to comply with the above may lead to prosecution
Without written approval of the manufacturer the internals of the water heater may not be changed. When changes are executed without approval,
the water heater certification becomes invalid.
Commissioning, maintenance and repair must be done by a skilled installer/engineer, according to all applicable standards and regulations.
2.1 GENERAL DESCRIPTION OF SAFETY SYMBOLS USED
BANNED
A black symbol inside a red circle with a red diagonal indicates an action that should not be performed
WARNING
A black symbol added to a yellow triangle with black edges indicates danger
ACTION REQUIRED
A white symbol inserted in a blue circle indicates an action that must be taken to avoid risk
ELECTRICAL HAZARD
Observe all signs placed next to the pictogram. The symbol indicates components of the unit and
actions described in this manual that could create an electrical hazard.
HOT SURFACES
The symbol indicates those components with a high surface temperature that could create a risk.
This symbol shows essential information which is not safety related
Recover or recycle material

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2.2 WHAT TO DO IF YOU SMELL GAS
Warning if you smell gas
No naked flames, no smoking!
Avoid causing sparks, do not switch on or off electrical equipment or lights
Open windows and doors
Shut off the main gas supply
Warn occupants and leave the building
After leaving the building alert the local gas supply company
Do not re-enter the building until it is safe to do so
Lochinvar Limited is not liable for any damage caused by inaccurately following these installation instructions. Only
original parts may be used when carrying out any repair or service work.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety. Children MUST be supervised to ensure that they do not
play with the appliance.

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3.0 PRINCIPLE PARTS
Item No
Description of item
SHW35-245
SHW46-325
SHW61-325
SHW86-410
SHW116-410
SHW146-410
1.
AIR PRESSURE SWITCH
PRS20016
PRS20017
PRS20001
PRS20002
PRS20022
2.
BURNER C/W GASKET
BNR30019
BNR3426
BNR3427
BNR3428
BNR3429
3.
BURNER CONTROL
RLY40116
RLY40117
RLY40118
RLY40117
4.
BURNER DOOR GASKET - ROPE
GKT2452
5.
BURNER DOOR GASKET - RUBBER
GKT2455
6.
BURNER DOOR INSULATION
FIB2291
CLEAN OUT DOOR GASKET
GKT2101 NOT SHOWN ON DRAWING
7.
HEAT EXCHANGER REAR WALL INSULATION
FIB2167
8.
CONDENSATE TRAP
MSC20260
FLAME SENSE PROBE CABLE
WRE2211 NOT SHOWN ON DRAWING
9.
FLAME SENSE PROBE C/W GASKET
PLT3022
10.
DISPLAY PCB
RLY20120
11.
FLUE TEMPERATURE SENSOR GROMMET
N/A
MSC2200
12.
FAN ASSEMBLY
FAN2050
FAN2051
FAN2052
FAN2053
FAN2054
FAN2055
13.
FAN GASKET
GKT2456
GKT2436
GKT2456
GKT2436
-
14.
FLUE TEMPERATURE SENSOR
TST20007
TST30011
15.
GAS VALVE ASSEMBLY
VAL30071
VAL30072
VAL30073
VAL30074
VAL30075
VAL30076
16.
IGNITION CABLE
WRE2209
17.
IGNITION ELECTRODE C/W GASKET
PLT3021
18.
INLET TEMPERATURE SENSOR
TST20037
19.
OUTLET TEMPERATURE SENSOR/HIGH LIMIT
TST20038
20.
STEP DOWN POWER TRANSFORMER
LL100170179
21.
PUMP
PUM20081
PUM20082
PUM20083
22.
PUMP RELAY
RLY2610
23.
VENTURI GASKET
GKT2443
GKT2444
24.
MAGNESIUM ANODE
WTR2500
25.
HEAT EXCHANGER C/W GASKETS/FITTINGS
RECOMMEND LOCHINVAR FIT THIS ITEM
LL200030P
LL200031P
LL200032P
LL200033P
LL200034P
LL200035P
26.
LOW VOLTAGE CONNECTION BOARD
LL100167623
27.
AIR SHROUD GASKET
N/A
GKT2080
PRINCIPLE PARTS-USE IN CONJUNCTION WITH 3.1.2

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EXPLODED VIEW DRAWINGS

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4.0 TECHNICAL DATA
Model Number
SHW35-
245CE
SHW46-
325CE
SHW61-
325CE
SHW86-
410CE
SHW116-
410CE
SHW146-
410CE
GENERAL DATA
Product I.D Number
CE0063
Catergory(ies)
II2H3B/P
Countries of Destination
GB/IE
Input (gross)
kW
36.6
44
61.5
83.5
116.9
146.5
Input (net)
kW
33.3
39.6
55.4
75.2
105.3
132
Output (PMMin-PNMax)
kW
7.03-35.2
8.49-41.2
11.79-58.7
16-79.7
22.13-110.6
28.2-141.2
Recovery Rate (44°)
l/hr
695
806
1153
1567
2164
2768
Recovery Rate (50°)
l/hr
612
709
1014
1379
1904
2436
Shipping Weight
kg
136
281
290
379
388
406
Full Weight
kg
384
614
625
825
838
860
NOX@0%o2 According to EU regulation 812/2013
mg/kw
25.3
33
27.3
33.1
40
38
Maximum allowable temperature of the combustion
air
°C
40
GAS DATA –G20
Nominal gas inlet pressure
mbar
20
Maximum gas inlet pressure
mbar
25
Minimum gas inlet pressure
mbar
17.5
Gas flow rate
m3/hr
3.5
4.2
5.7
8
11.1
14
Flue gas mass rate (@ 9.0% CO2)
g/sec
13.6
16
22.3
30.4
42.5
53.2
Gas inlet connection size
B.S.P
½
½
½
¾
1
1
GAS DATA –G31
Nominal gas inlet pressure
mbar
37
Maximum gas inlet pressure
mbar
45
Minimum gas inlet pressure
mbar
27
Gas flow rate
m3/hr
1.4
1.7
2.3
3.1
4.4
5.5
Flue gas mass rate (@ 10.5% CO2)
g/sec
14
16.7
23.2
31.6
44.2
55.4
Gas inlet connection size
B.S.P
R½
R½
R½
R¾
R1
R1
ELECTRICAL DATA
Power consumption
W
361
431
459
646
932
961
Power supply
Single phase/230v/50HZ
Protection class
IP00
WATER DATA
Water content
litres
248
331
332
420
423
424
Water connections (F & R)
B.S.P
1 ½
2
Maximum water pressure
bar
10
TECHNICAL DATA
The Installer much check that the information given on the data plate or supplementary plate is compatible with local
supply conditions before installing the appliance.

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5.0 DIMENSIONS AND CLEARANCE
5.1 DIMENSIONS
MODEL
TANK VOLUME
HEIGHT
WIDTH
T&P VALVE
COLD FEED
HOT OUTLET
A
B
C
D
E
SHW35-245
244
1530
715
755
1610
1610
SHW46-325
325
1920
715
1117
2005
2005
SHW61-325
325
1920
715
1126
2005
2005
SHW86-410
410
1920
865
786
2020
2020
SHW116-410
410
1920
865
786
2020
2020
SHW146-410
410
1920
865
786
2020
2020
DIMENSIONAL DRAWING ECOSHIELD™

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5.2 CLEARANCES
The location chosen for the equipment must permit the provision for a satisfactory flue system and, where necessary, an adequate air supply.
The location must also provide adequate space for servicing and air circulation around each unit. This includes any electrical trunking laid across
the floor and to the appliance.
RECOMMENDED SERVICE CLEARANCES:
TOP - 450mm
LEFT - 600mm
RIGHT - 100mm
FRONT - 600mm
REAR - ZERO
FLUE - 25mm
ENCLOSURE INSTALLATION CLEARANCES (MM)
RECOMMENDED SERVICE CLEARANCES:
TOP - 450mm
LEFT - 600mm
RIGHT - 100mm
FRONT - 600mm
REAR - ZERO
FLUE - 25mm
PLANT-ROOM INSTALLATION CLEARANCES (MM)
Further details regarding locations are given in BS5440 or BS6644 as appropriate.

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6.0 GENERAL REQUIREMENTS
The Lochinvar EcoShield™ condensing water heater has been designed to operate trouble free for many years. These instructions should be
followed closely to obtain the maximum usage and efficiency of the equipment.
READ AND UNDERSTAND THE INSTRUCTIONS
Read and fully understand all instructions before attempting to operate maintain or install the unit.
6.1 RELATED DOCUMENTS
It is law that all gas appliances are installed by competent persons, in accordance with The Gas Safety (Installation and Use) Regulations 1998.
Failure to install appliances correctly could lead to prosecution. It is in your own interest, and that of safety, to ensure that this law is complied
with.
The installation of the equipment MUST be in accordance with the relevant requirements of the Gas Safety Regulations, Building Regulations,
I.E.E. Regulations and the bylaws of the local water undertaking. The installation should also be in accordance with any relevant requirements
of the local gas distributor and local authority.
In addition the installation should follow the relevant guidance offered in the following documents. It is not practical to list all relevant information
but emphasis is placed on the following documents, as failure to comply with the guidance given will almost certainly result in an unsatisfactory
installation:
Regulation
Description
BS EN 1858: 2008 + A1: 2011
Chimneys, Components. Concrete flue blocks.
BS 5440-1: 2008
Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases). Specification for
installation of gas appliances to chimneys and for maintenance of chimneys.
BS 5440-2: 2009
Installation and maintenance of flues and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd
family gases). Specification for installation and maintenance of ventilation for gas appliances.
BS 6644: 2011
Specification for Installation of gas-fired hot water Heaters of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd
family gases).
BS EN 806 1-5
Specifications for installations inside buildings conveying water for human consumption.
BS 7671 :2008 + A3:2015
Code of practice for low temperature hot water systems of output greater than 45 kW.
BS 7074: 1989 Parts 1 and 2
Application, selection and installation of expansion vessels and ancillary equipment for sealed systems.
BS 7671: 2008 + A1: 2011
Requirements for electrical installations, I.E.E. wiring regulations seventeenth edition.
BS 7671: Amendment 2: August 2013
BS EN 12828:2012+A1:2014
Heating systems in buildings. Design for water-based heating systems.
CP 342 (Part 2 1974):
Code of practice for centralised hot water supply-buildings other than dwellings.
Institute of Gas Engineers and Managers (IGEM) Publications
IGE/UP/1 - Edition 2:
Installation pipework on industrial and commercial premises.
IGE/UP/2 –Edition 3
Gas installation pipework, boosters and compressors on industrial and commercial premises.
IGE/UP/4 - Edition 4
Commissioning of gas-fired plant on industrial and commercial premises.
IGE/UP/10 - Edition 4
Installation of flued gas appliances in industrial and commercial premises.
Gas Safety (Installation and Use) Regulations 1998
CIBSE: Guides
Part A Environmental Design
Part G Public health engineering
H.S.E. guidance
INDG 436 Safe management of industrial steam & hot water Heaters
SAFED BG01Guidance on safe operation of Water Heaters
Third edition of the 1956 Clean Air Act Memorandum on Chimney Heights
Manufacturer's notes must not be taken in any way as overriding statutory obligations.

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7.0 WATER QUALITY
Water supply quality may adversely affect the efficiency performance and longevity of Water Heaters and Hot Water systems. Hard water may
cause the formation of limescale which will reduce operating efficiency and may cause early product failure. Please note the following:-
Water Hardness –should not exceed 205ppm CaCO3 and Total Dissolved Solids (TDS) of untreated water should not exceed
350ppm.
If these values are exceeded a water treatment specialist should be consulted. Water Softeners and Water Conditioners may be
considered, but whichever method is selected, it should be suitable for installation with Direct Gas-fired Water Heaters. A maintenance
regime will also be required for such systems
High hot water temperature and high demand for hot water is likely to cause quicker limescale formation
The formation of limescale or other solids can cause a blockage within the heat exchanger, which in turn may cause
premature failure. Such instances are not regarded as defects in manufacture and will not be covered under the
product warranty.
8.0 LOCATION
8.1 PLANT ROOM REQUIREMENTS
The Lochinvar EcoShield™ may only be installed in a room that complies with the appropriate ventilation requirements.
The Lochinvar EcoShield™ can be used as a type C13, C33, or C53 appliance. Due to its room sealed design, ventilation allowances for
combustion air are not necessary, provided the minimum clearances and service clearances as detailed in 5.2 are observed. If the appliance is
to be installed in a compartment or a hot environment, the minimum clearances detailed in 5.2.1 should be observed. In addition to this or to
comply with the recommendations in BS6644, ventilation for cooling purposes must be fitted. For further guidance, please refer to Section 11.0
or to BS5440-2 or BS6644 as appropriate.
The Lochinvar EcoShield™ can also be used as a type B23 appliance. If such a configuration is to be used, then appropriate ventilation for
cooling and combustion must be provided. For further details, please refer to Section 9 AIR SUPPLY or to BS5440-2 or BS6644 as appropriate.
8.2 GENERAL REQUIREMENTS
Corrosion of the heat exchanger and flue system may occur if air for combustion contains certain chemical vapours. Such corrosion may result
in poor combustion and create a risk of asphyxiation. Aerosol propellants, cleaning solvents, refrigerator and air conditioning refrigerants,
swimming pool chemicals, calcium and sodium chloride, waxes and process chemicals are corrosive. Products of this sort should not be stored
near the water heater or outside by the air intake (if applicable). The fitting of this equipment in a situation where aerosols or other chemicals
may be entrained into the combustion air will invalidate the warranty.
The equipment must be installed on a level surface that is capable of adequately supporting its weight (when filled with water) and any ancillary
equipment. The operation of the equipment must not cause the temperature of any combustible material in the vicinity of the equipment and its
flue to exceed 65°C. If such a situation is unavoidable, appropriate insulation should be provided.
Locate the equipment so that if the appliance or any connecting pipework should leak, water damage will not occur.
When such locations cannot be avoided a suitable drain pan should be installed under the equipment. The pan should
be adequately drained but must not restrict the combustion or ventilation airflow.
8.3 CONDENSATE DRAIN
The condensate drain is located on the left hand side of the water heater. It is fitted with a ½” PVC tee and union, this should be connected to
an appropriate condensate drain, sloping continuously away from the water heater at an angle of at least 3(50mm per metre).
The Water Resources Act requires that trade effluent is discharged to municipal sewers between pH 6.5 and 10.0. If it is determined that these
levels cannot be achieved, an in-line condensate neutralisation kit is available from Lochinvar Limited. This unit is capable of neutralising 4000
litres of condensate to a pH of 7.0 before releasing it to a drain.

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9.0 GAS SUPPLY
The Lochinvar EcoShield™ range is suitable for use on second and third family gasses 2H - G20 - 20mbar and 3P - G31 - 37mbar. Details
relating to Natural Gas (2H) appear below; for details relating to Propane (3P) please refer to Section 16.0 LPG FUEL.
9.1 SERVICE PIPES
The local gas distributor must be consulted at the installation planning stage in order to establish the availability of an adequate supply of gas.
An existing service pipe must not be used without prior consultation with the local gas distributor.
9.2 METERS
A new gas meter will be connected to the service pipe by the local gas distributor contractor. An existing gas meter should be checked, preferably
by the gas distributor, to ensure that it is adequate to deal with the rate of gas supply required.
9.3 GAS SUPPLY PIPES
Supply pipes must be fitted in accordance with IGE/UP/2. Pipework from the meter to the equipment must be of adequate size. The complete
installation must be purged and tested as described in IGE/UP/1. Refer to Section 16.0 LPG Fuel for information on LPG pipework installation
guidance.
9.4 BOOSTED SUPPLIES
Where it is necessary to employ a gas pressure booster, the controls must include a low-pressure cut-off switch at the booster inlet. The local
gas distributor must be consulted before a gas pressure booster is fitted. For details of how to connect a low-pressure cut-off switch, please
refer to Section 11 Electrical Supply
9.5 PLANT-ROOM CONTROL VALVE
A manual valve for plant-room isolation must be fitted in the gas supply line. It must be clearly identified and readily accessible for operation,
preferably by an exit.
9.6 EQUIPMENT GAS SYSTEM LEAK CHECK
An approved gas-inlet appliance isolating valve and union should be installed for each unit in a
convenient and safe position and be clearly marked.
Ensure that the gas-inlet appliance isolating valve is in the OFF position. Although the equipment receives a gas leak check and gas train
component integrity check prior to leaving the factory, transit and installation may cause disturbance to unions, fittings and components. During
commissioning a further test for tightness should be carried out on the equipment gas pipework and components.
Care must be taken not to allow leak detection fluid on or near any electrical parts or
connections.

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10.0 FLUE SYSTEM
All versions of the EcoShield™ Condensing water heater can be installed as either type B23 (fan assisted open flue) or C13, C33, C43,C53,C63
(room sealed) appliances. Only C13,C33,C53 Flue systems are covered in any detail within this document, further information can be found in
the EcoShield™ Flue assemblies and ancillaries guide available at www.lochinvar.ltd.uk See the relevant section for details of each flue type
and requirements.
10.1 FLUE SYSTEM GENERAL REQUIREMENTS
Install the horizontal flue components with an angle of 3° back in the direction of the boiler (roughly equal to five
centimetres for every linear meter). Failure to install the flue correctly will result in a build-up of condense within the
flue pipework that will cause early component failure.
When using a wall terminal, there is the possible risk of ice building-up on surrounding parts/structures, because the
condensate will freeze. This risk should be taken into account during the design phase of the heating installation.
EcoShield™ Water heaters will produce large condense clouds especially during cold weather, consideration must be
taken as to whether this will cause a nuisance to neighbouring properties and if so alternative flue arrangements used.
EcoShield™ Water heaters can operate with very low flue temperatures; as such the flue system used must be suitable
for use with condensing appliances made from either Polypropylene or stainless steel and have a temperature class
of T120.
Aluminium flue pipe must not be used on this appliance as it may lead to premature failure of the heat exchanger and
will invalidate the warranty.
Before installation of any flue system read the installation manual carefully for both the appliance and flue system to
be used. Information on the flue system Supplied by Lochinvar can be found within this manual.

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Model Number
SHW35-245CE
SHW46-325CE
SHW61-325CE
SHW86-410CE
SHW116-410CE
SHW146-410CE
FLUE DATA TYPE B23
Nominal flue diameter (dnom)
mm
80
100
Nominal flue diameter (doutside)
mm
80 +/-0.3
100 +/-0.3
Nominal flue diameter (dinside)
mm
81 +/-0.6
101+/-0.6
Nominal flue diameter (Linsert)
mm
50 +20/ -2
50 +20/ -2
Maximum flue gas temp.
°C
120
Maximum equivalent length
m
60
Equivalent length 90bend
mm
1000
Equivalent length 45bend
mm
500
Flue gas temperature
°C
70
Flue draught requirements
mbar
-0.03 to -0.1
FLUE DATA TYPE C13 & C33
Nominal flue diameter
mm
80/125
100/150
Maximum flue gas temp.
°C
120
Maximum equivalent length
m
30
13
Equivalent length 90bend
mm
1000
Equivalent length 45bend
mm
500
FLUE DATA TYPE C43 & C53
Nominal flue diameter (dnom)
mm
80
100
Nominal flue diameter (doutside)
mm
80 +/-0.3
100 +/-0.3
Nominal flue diameter (dinside)
mm
81 +/-0.6
101+/-0.6
Nominal flue diameter (Linsert)
mm
50 +20/ -2
50 +20/ -2
Minimum flue gas temp
°C
35
Average flue gas temp
°C
70
Maximum flue gas temp.
°C
120
Maximum equivalent length
m
60*
Equivalent length 90bend
mm
1000
Equivalent length 45bend
mm
500
FLUE DATA TYPE C63
Nominal flue diameter (dnom)
mm
80
100
Nominal flue diameter (doutside)
mm
80 +/-0.3
100 +/-0.3
Nominal flue diameter (dinside)
mm
81 +/-0.6
101+/-0.6
Nominal flue diameter (Linsert)
mm
50 +20/ -2
50 +20/ -2
Minimum flue gas temp
°C
35
Average flue gas temp
°C
70
Maximum flue gas temp.
°C
120
Max combustion air temperature
°C
40
Maximum equivalent length
m
48
FLUE SYSTEM TECHNICAL DATA TABLE
* On twin pipe systems, the maximum equivalent length is the sum of the air inlet components and the exhaust components.

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10.2 FLUE DISCHARGE
The flue system must ensure safe and efficient operation of the equipment to which it is attached, protect the combustion process from wind
effects and disperse the products of combustion to open external air.
The flue must terminate in a freely exposed position and be so situated as to prevent the products of combustion entering any opening in a
building. For installations with a total output above 333kW nett, the clean air act should be consulted and complied with.
Under certain operating and weather conditions, the EcoShield™ water heater may generate a plume at the terminal. Consideration should be
given to the nuisance this may cause and the terminal should be sited accordingly.
For further information on terminal locations, please refer to Section 10.3.1 FLUE TERMINAL POSITIONS.
10.3 CONDENSATE DRAIN
If the flue system rises at an angle of at least 3(50mm per metre), no additional condensate drain will be required. Failure to provide an
adequate rise in the flue system may lead to pooling of condensate which may lead to premature failure of the flue system.
FLUE TERMINAL POSITIONS
Location
Description
SHW35-245CE
SHW46-325CE
SHW61-325CE
SHW86-410CE
SHW116-410CE
SHW146-410CE
A
Directly below an opening, air brick, opening windows etc.
300
2000
B
Above an opening, air brick, opening windows etc.
300
1000
C
Horizontally to an opening, air brick, opening windows etc.
300
1000
D
Below a gutter or sanitary pipework
75
75
E
Below the eaves
200
200
F
Below a balcony or car port roof
200
200
G
From a vertical drain or soil pipe
150
150
H
From an internal or external corner
300
300
I
Above ground, roof or balcony level
300
300
J
From a surface facing the terminal
600
1000
K
From a terminal facing the terminal
1200
2000
L
From an opening in the car port (e.g. door, window) into the
dwelling
1200
1200
M
Vertically from a terminal on the same wall
1500
1500
N
Horizontally from a terminal on the same wall
300
600
P
From a vertical structure on the roof
300
300
Q
Above intersection with the roof
300
300
FLUE TERMINAL MINIMUM DISTANCES

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10.4 FLUE SYSTEM GENERAL REQUIREMENTS
Detailed recommendations for the flue system are given in BS5440-1 for equipment of rated input not exceeding 70kW net, BS6644 for
equipment above 70kW net and IGE/UP/10 for equipment of rated input above 54kW net. The following notes are intended to give general
guidance only.
10.5 APPROVED FLUE SYSTEM
For Concentric and Twin pipe flue systems only the Lochinvar supplied M&G flue system must be used
The approved flue system is not suitable for use external to the building. If external routes cannot be avoided, a flue
system manufacturer should be consulted to supply a suitable alternative.
10.6 INSTALLATION PRECAUTIONS
The approved flue system is rated to 120C max. To prevent the exhaust temperature exceeding this, the appliance is supplied with
a flue gas temperature sensor.
This must be fitted during the installation of the flue system. Failure to do so may lead to severe
personal injury, death or substantial property damage.
The water heater must not be operated unless the complete flue system is installed. This includes the water heater connections,
concentric adaptor (if required) flue pipes, air ducts (if required) and terminals. If discharging at low level, a suitable flue guard must
be installed.
During assembly precaution should be taken to ensure that the internal sealing ring is seated correctly.
Due to the close tolerances in the flue system, it may be necessary to use a twisting action to fit the joints together. No lubrication
other than water should be used.
10.7 CONDENSATE DRAIN
Condensate can flow back to the appliance, this will travel through the heat exchanger into the condensate drain via the trap.
If the flue system rises at an angle of at least 3(50mm per metre), no additional condensate drain will be required. Failure to provide an
adequate rise in the flue system may lead to pooling of condensate which may lead to premature failure of the flue system.
10.8 TYPE B23 CONVENTIONAL FANNED FLUE
When the heater is installed as a Type B23 appliance, the flue system should be installed in accordance with the flue manufacturer’s specific
instructions. A kit of components is available to facilitate conventional flueing of the EcoShield™ water heater;
This must be fitted prior to any other flue pipework.
SHW35-245CE –SHW61-325CE kit number SHCF003
SHW86-410CE –SHW145-410CE kit number SHCF004

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10.9 ROOM SEALED (TYPE C) FLUE ASSEMBLY
Before fitting the flue system for either type C13 Horizontal or C53 Vertical Concentric flue the flue transition kit should be installed to the top of
the heater as per 10.9.3 and 10.9.7
SHW35-245,SHW46-325,SHW61-325
SHW86-410,SHW116-410,SHW146-410
ECOSHIELD™SHOWING TRANSITION KIT FITTED
TRANSITION KIT SHW35-245CE –SHW61-325CE
FLUE TRANSITION DETAILS SHW35-245CE –SHW61-325CE