Evo HE C22/30 Release note

C22/24, C22/30, C22/35
(V3 Flue System)
Wall mounted, balanced flue, fanned gas boiler
Advanced High Efficiency Boilers
Installation & Servicing Instructions
See reverse for evo HE Users Guide
Manufactured exclusively for Wolseley Centers Ltd. by Ideal Boilers
For details of document amendments, refer to page 3
October 2007 UIN 203324 A02
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2evo HE C - Installation and Servicing
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3evo HE C - Installation and Servicing
DOCUMENT AMENDMENTS
Relevant Installation changes implemented in this book from Mod Level ......................... A01 to A02 (Oct 07)
Wolseley Centers Ltd. reserve the right to vary specification without notice
• Page 10, Electrical Supply
Addition of fan voltage.
• Page 14, Frame 9 - Unpacking
Para 1, ref. to telescopic flue length.
• Page 16, Frame 12 - Determining The Flue Lengths and Flue Packs Required
Addition of telescopic reference and update to table.
• Page 17, Frame 13 - Flue Assembly - Exploded View
Change of dimensions for wall thicknesses.
• Page 18, Frame 16 - Setting The Flue - Rear
All frame updated.
• Page 18, Frame 17 - Setting The Flue - Side
All frame updated.
• Page 19, Frame 18 - Flue Extension Ducts
Dimension changes.
• Page 19, Frame 20 - Fitting the Kit
Dimension Changes.
• Page 22, Frame 24 - Condensate Pipe Termination
Item 3 - addition of termination into a down pipe.
• Page 33, Frame 40 - Pictorial Wiring Diagram
Diagram updated.
• Page 34, Frame 41 - Functional Flow Wiring Diagram
Diagram updated.
• Page 61 - Short Parts List
Parts List updated.
• USERS GUIDE - Page 2
Addition of two bullets into important notes.
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4evo HE C - Installation and Servicing
GENERAL
Boiler Size C22/24 C22/30 C22/35
Gas supply 2H - G20 - 20mbar
Gas Supply Connection Rc 1/2 (1/2” BSP female)
Injector Size Stereomatic 5.6mm dia. 5.7mm dia.
Inlet Connection Domestic Hot Water 15mm copper compression
Outlet Connection Domestic Hot Water 15mm copper compression
Flow Connection Central Heating 22mm copper compression
Return Connection Central Heating 22mm copper compression
Flue Terminal Diameter mm (in) 100 (4)
Average Flue Temp-Mass Flow Rate (DHW) 66oC-10g/s 74oC - 12 g/s 82oC-14g/s
Maximum Working Pressure (Sealed Systems) bar (lb/in2) 2.5 (3.63)
Maximum Domestic Hot Water Inlet Pressure bar (lb/in2) 10.0 (145)
Minimum Domestic Hot Water Inlet Pressure bar (lb/in2) 0.5 (7)
Electrical Supply 230 V ~ 50 Hz.
Power Consumption 148 W 148 W 152 W
Fuse Rating External : 3A Internal : T3.15A L250 V
Water content Central Heating litre (gal) 2.0 (0.44)
Domestic Hot Water 0.5 (0.11)
Packaged Weight kg (lb) 52 (115) 52 (115) 53 (117)
Maximum Installation Weight kg (lb) 42.5 (94) 43 (95) 43.5 (96)
Boiler Casing Size Height mm (in) 687 (27)
Width mm (in) 390 (15 3/8)
Depth mm (in) 278 (11)
Table 1 - General Data
Note. Gas consumption is calculated using a
calorific value of 38.7 MJ/m3(1038 Btu/ft3) gross
or 34.9 MJ/m3 (935 Btu/ft3) nett
To obtain the gas consumption at a different
calorific value:
a. For l/s- divide the gross heat input (kW) by
the gross C.V. of the gas (MJ/m3)
b. For ft3/h - divide the gross heat input (Btu/h)
by the gross C.V. of the gas (Btu/ft3)
Key to symbols
GB = United Kingdom IE = Ireland (Countries of destination)
PMS = Maximum operating pressure of water
C13 C33 C53 = A room sealed appliance designed for connection via ducts to a
horizontal or vertical terminal, which admits fresh air to the burner
and discharges the products of combustion to the outside through
orifices which, in this case, are concentric. The fan is up stream
of the combustion chamber.
I2H = An appliance designed for use on 2nd Family gas, Group H only.
* The value is used in the UK Government's Standard Assessment Procedure (SAP) for energy rating of dwellings. The test data from which
it has been calculated have been certified by a notified body.
CAUTION. To avoid the possibility of injury during the installation, servicing or cleaning of
this appliance care should be taken when handling edges of sheet steel components
Table 2 - Performance Data - Central Heating
Maximum DHW Input : C22/24 C22/30 C22/35
Nett CV kW 24.3 30.2 36.0
(Btu/h) (82 900) (103 000) (122 800)
Gross CV kW 27.0 33.5 39.9
(Btu/h) (92 100) (114 400) (136 200)
Gas Consumption l/s 0.7 0.87 1.03
(ft3/h) (89.0) (110) (131)
Maximum kW 23.4 29.3 35.2
DHW Output (Btu/h) (80 000) (100 000) (120 000)
DHW Flow Rate l/min 9.6 12.0 14.4
at 35°C temp. rise. (gpm) (2.1) 2.6 (3.2)
DHW Specific Rate l/min 11.2 14.0 16.8
(gpm) (2.5) (3.1) (3.7)
Table 3 - Performance Data - Domestic Hot Water
Boiler Input : Max. Min.
Boiler Input ‘Q’ Nett CV kW 22.6 9.1
(Btu/h) (77 100) (31 000)
Gross CV kW 25.1 10.1
(Btu/h) (85 600) (34 400)
Gas Consumption l/s 0.65 0.26
(ft3/h) (82.5) (33.1)
Boiler Output :
Non Condensing kW 22 8.8
70oC Mean Water temp. (Btu/h) (75 000) (30 000)
Condensing kW 23.3 9.6
40oC Mean Water temp. (Btu/h) (79 500) (32 800)
Seasonal efficiency* (SEDBUK) Band A [90.1]%
NOx Classification Class 5
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5evo HE C - Installation and Servicing
GENERAL
CONTENTS
Air Supply ....................................................................... 8
Benchmark Commissioning Checklist ..................... 66
Boiler Clearances ......................................................... 9
Boiler Exploded Diagram ............................................ 13
Condensate Drain ............................................ 10,21-22
Electrical Connections ............................................... 31
Electrical Supply ......................................................... 10
Extension Ducts - Fitting ............................................. 19
Fault Finding ........................................................... 56-60
Flow Wiring Diagram .................................................. 30
Flue Fitting .................................................................... 18
Flue Installation ............................................................. 8
Gas Safety Regulations ................................................ 7
Gas Supply ..................................................................... 8
Installation ............................................................. 12-37
Mandatory Requirements ....................................... 7-10
Pump .......................................................................... 53
Safe Handling ................................................................ 6
Servicing ................................................................ 38-55
Short List of Parts ....................................................... 61
Thermostatic Radiator valves ................................... 10
Water and Systems ........................................... 8,10-12
Water Connections ............................................... 28-29
Water Treatment ......................................................... 12
Wiring Diagrams ................................................... 32-34
evo HE
Natural Gas only
Boiler size G.C. Appliance No. PI No.
Benchmark No.
C22/24 47 348 32 87 BP 34
C22/30 47 348 33 87 BP 34
C22/35 47 348 34 87 BP 34
Destination Country: GB, IE
Boiler Page
Make and model ....................................................... 5
Appliance serial no. on data badge ...................... 13
SEDBUK No. % ......................................................... 4
Controls
Time and temperature control to heating ............. 32
Time and temperature control to hot water .......... 32
Heating zone valves ..............................................n/a
TRV's ...................................................................... 10
Auto bypass ........................................................... 10
Boiler interlock ....................................................... 10
For all boilers
Flushing to BS.7593 .............................................. 12
Inhibitor .................................................................. 12
Central heating mode
Heat input ................................................to be calculated
For assistance see Technical Helpline on the back page
Page
Burner operating pressure .................................... n/a
Central heating flow temp. ...... measure and record
Central heating return temp. ... measure and record
For combination boilers only
Scale reducer ......................................................... n/a
Hot water mode
Heat input ......................................... To be calculated
Max. operating burner pressure .............................. n/a
Max. operating water pressure ....... To be calculated
Cold water inlet temp ...................... To be calculated
Hot water outlet temp. ..................... To be calculated
Water flow rate at max. setting ........ To be calculated
For condensing boilers only
Condensate drain .................................................. 21
For all boilers: complete, sign & hand over to customer
For GB, to comply with Building Regulations Part L1 (Part 6 in Scotland) the boiler should be fitted in accordance with the
manufacturer's instructions. Self-certification that the boiler has been installed to comply with Building Regulations can be
demonstrated by completing and signing the Benchmark Commissioning Checklist.
BENCHMARK COMMISSIONING CHECKLIST DETAILS
NOTE TO THE INSTALLER: COMPLETE
THE BENCHMARK COMMISSIONING
CHECKLIST AND LEAVE THESE
INSTRUCTIONS WITH APPLIANCE
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6evo HE C - Installation and Servicing
GENERAL
1 BOILER WATER CIRCUIT DIAGRAMS
INTRODUCTION
The evo HE range of boilers are model is a wall mounted, full sequence,
automatic spark ignition, low water content, fanned flue, high efficiency,
condensing, combination gas boilers.
Note. Due to the high efficiency of the boiler a plume of water vapour will
form at the terminal during operation.
Central heating (CH) output is fully modulating with a range of 8.8 to
22.0kW (30,000 to 75,000 Btu/h)
Instantaneous domestic hot water (DHW) output is also fully modulating
with a maximum of :
C22/24 24.4kW (80,000 Btu/h)
C22/30 29.3kW (100,000 Btu/h)
C22/35 35.2kW (120,000 Btu/h)
The boiler is supplied fully assembled with DHW plate heat exchanger,
diverter valve, circulating pump, pressure gauge, safety valve and CH
expansion vessel.
Variable CH and DHW temperature controls are fitted on the user control
and the boiler features a DHW preheat facility.
The boiler casing is of white painted mild steel with the user controls
capable of being mounted remotely from the boiler if the option is required.
The boiler temperature controls are visible at the bottom RHS of the front
panel.
The heat exchanger is of cast aluminium.
The boiler is suitable for connection to fully pumped, sealed water
systems ONLY. Adequate arrangements for completely draining the
system by provision of drain cocks MUST be provided in the installation
pipework.
Pipework from the boiler is routed downwards as standard, but may be
routed upwards behind the boiler using the stand-off frame (supplied in a
separate kit).
OPERATION
With no demand for CH, the boiler fires only when DHW is drawn off, or
periodically for a few seconds without any DHW draw-off, in order to
maintain the DHW calorifier in a heated condition.
When there is a demand for CH, the heating system is supplied at the
selected temperature of between 30 oC and 82oC, until DHW is drawn off.
The full output from the boiler is then directed via the diverter valve to the
plate heat exchanger to supply a nominal DHW draw-off of
C22/24 9.6 l/min at 35 oC temperature rise.
C22/30 12 l/min at 35 oC temperature rise.
C22/35 14.4 l/min at 35 oC temperature rise.
The DHW draw off rate specified above is the nominal that the boiler flow
regulator will give. Due to system variations and seasonal temperature
fluctuations DHW flow rates/temperature rise will vary, requiring
adjustment at the draw off tap.
At low DHW draw-off rate the maximum temperature is limited to 65 oC by
the modulating gas control.
Refer also to Frame 1 - 'Boiler Water Circuit Diagrams'
The boiler features a comprehensive diagnostic system which gives
detailed information on the boiler status when operating, and performance
of key components to aid commissioning and fault finding.
SAFE HANDLING
This boiler may require 2 or more operatives to move it to its installation
site, remove it from its packaging base and during movement into its
installation location. Manoeuvring the boiler may include the use of a sack
truck and involve lifting, pushing and pulling.
Caution should be exercised during these operations.
Operatives should be knowledgeable in handling techniques when
performing these tasks and the following precautions should be
considered:
• Grip the boiler at the base.
• Be physically capable.
• Use PPE as appropriate, e.g. gloves, safety footwear.
Central Heating Circuit
Expansion
vessel
Automatic
air vent
Gas valve
Plate heat
exchanger
Pump
Safety
relief valve
Condensate
'S' trap
Diverter
valve
Water
pressure
gauge
Sump
Fan
Burner
CH Flow
Gas
Condensate
drain
Discharg
pipe
CH Return
Domestic Hot Water Circuit
Expansion
vessel
Automatic
air vent
Heat
exchanger
Gas valve
Pump
Safety
relief valve
Condensate
'S' trap
Diverter
valve
Water
pressure
gauge
Sump
Fan
Burner
DHW Hot out
Gas
Condensate drain
Discharge pipe
nm8763
DHW Cold in
Plate heat
exchanger
Heat
exchanger
During all manoeuvres and handling actions, every
attempt should be made to ensure the following
unless unavoidable and/or the weight is light.
• Keep back straight.
• Avoid twisting at the waist.
• Avoid upper body/top heavy bending.
• Always grip with the palm of the hand.
• Use designated hand holds.
• Keep load as close to the body as possible.
• Always use assistance if required.
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7evo HE C - Installation and Servicing
GENERAL
SAFETY
Current Gas Safety (installation and use) regulations or rules
in force:
The appliance is suitable only for installation in GB and IE and
should be installed in accordance with the rules in force.
In GB, the installation must be carried out by a CORGI
Registered Installer. It must be carried out in accordance with
the relevant requirements of the:
• Gas Safety (Installation and Use) Regulations
• The appropriate Building Regulations either The Building
Regulations, The Building Regulations (Scotland), Building
Regulations (northern Ireland).
• The Water Fittings Regulations or Water byelaws in
Scotland.
• The Current I.E.E. Wiring Regulations.
Where no specific instructions are given, reference should be
made to the relevant British Standard Code of Practice.
In IE, the installation must be carried out by a Competent
Person and installed in accordance with the current edition of
I.S.813 "Domestic Gas Installations", the current Building
Regulations and reference should be made to the current ETCI
rules for electrical installation.
Detailed recommendations are contained in the following British
Standard Codes of Practice:
BS. 5440:1 Flues (for gas appliances of rated input not
exceeding 70 kW).
BS. 5440:2 Ventilation (for gas appliances of rated input not
exceeding 70 kW).
BS. 5449 Forced circulation hot water systems.
BS. 5546 Installation of gas hot water supplies for
domestic purposes (2nd Family Gases)
BS. 6798 Installation of gas fired hot water boilers of rated
input not exceeding 70 kW.
BS. 6891 Low pressure installation pipes.
Health & Safety Document No. 635.
The Electricity at Work Regulations, 1989.
The manufacturer’s notes must NOT be taken, in any way, as
overriding statutory obligations.
IMPORTANT. These appliances are CE certificated for safety
and performance. It is, therefore, important that no external
control devices, e.g. flue dampers, economisers etc., are
directly connected to these appliances unless covered by these
Installation and Servicing Instructions or as otherwise
recommended by Wolseley Centers Ltd. in writing. If in doubt
please enquire.
Any direct connection of a control device not approved by
Wolseley Centers Ltd. could invalidate the certification and the
normal appliance warranty. It could also infringe the Gas Safety
Regulations and the above regulations.
SAFE HANDLING OF SUBSTANCES
Care should be taken when handling the boiler insulation
panels, which can cause irritation to the skin. No asbestos,
mercury or CFCs are included in any part of the boiler or its
manufacture.
LOCATION OF BOILER
The boiler must be installed on a flat and vertical wall, capable
of adequately supporting the weight of the boiler and any
ancillary equipment.
The boiler may be fitted on a combustible wall and insulation
between the wall and the boiler is not necessary, unless
required by the local authority.
For electrical safety reasons there must be no access available
from the back of the boiler.
The boiler must not be fitted outside.
Timber Framed Buildings
If the boiler is to be fitted in a timber framed building it should
be fitted in accordance with the Institute of Gas Engineering
document IGE/UP/7:1998.
Bathroom Installations
This appliance is rated IP20.
The boiler may be installed in any room or internal space,
although particular attention is drawn to the requirements of the
current IEE (BS.7671) Wiring Regulations and, in Scotland, the
electrical provisions of the building regulations applicable in
Scotland, with respect to the installation of the boiler in a room
or internal space containing a bath or shower. For IE reference
should be made to the current ETCI rules for electrical
installations and I.S. 813:2002.
If the appliance is to be installed in a room containing a bath or
shower then, providing water jets are not going to be used for
cleaning purposes (as in communal baths/showers), the
appliance can be installed in Zone 3, as detailed in BS.7671.
OPTIONAL EXTRA KITS
zFlue Extension Ducts. (1000mm long).
C22/24-upto 6m
C22/30-upto 6m
C22/35-upto 3m
zFlue Finishing Kit.
z90oElbow Kit (maximum per installation).
C22/24-upto 4 elbows
C22/30-upto 4 elbows
C22/35-upto 2 elbows
z45oElbow Kit (maximum per installation).
C22/24-upto 4 elbows
C22/30-upto 4 elbows
C22/35-upto 2 elbows
zRoof Flue Kit (to a maximum of 7.5m).
zPowered Vertical Flue Kit 5m primary and 17m secondary
is a typical maximum installation. For alternative details
refer to Powered Vertical Instructions.
zHigh Level Flue Outlet Kit
zFlue Deflector Kit
zWeather Collar
zTwin Fluing Kits (up to a maximum of 60m combined total
flue and airducts)
zRemote User Controls Kit
zBoiler Stand-off Kit
zSiphon Kit
zValve Cover Kit
zCondensate Pump Kit
RCUIT DIAGRAMS
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8evo HE C - Installation and Servicing
GENERAL
IMPORTANT.
Installation pipes must be fitted in accordance with BS.6891. In
IE refer to IS.813:2002. Pipework from the meter to the boiler
MUST be of an adequate size, i.e. no longer than 20m and not
less than 15mm O.D.
The complete installation MUST be tested for gas soundness
and purged as described in the above code.
FLUE INSTALLATION
Pluming will occur at the terminal so terminal positions where
this could cause a nuisance should be avoided.
The flue must be installed in accordance with the
recommendations of BS. 5440-1: 2000.
In IE refer to I.S. 813:2002.
The following notes are intended for general guidance:
1. The boiler MUST be installed so that the terminal is exposed
to external air.
2. It is important that the position of the terminal allows the free
passage of air across it at all times.
3. Minimum acceptable spacing from the terminal to
obstructions and ventilation openings are specified in
Table 4.
4. Where the lowest part of the terminal is fitted less than 2m
(6'6") above a balcony, above ground or above a flat roof to
which people have access then the terminal MUST be
protected by a purpose designed guard.
Terminal guards are available from boiler suppliers. (Ask for
TFC flue guard model no. K6 - round, plastic coated). In case
of difficulty contact:
Grasslin (UK) Ltd. Tel. + 44 (0) 01732 359 888
Tower House, Vale Rise Fax. + 44 (0) 01732 354 445
Tonbridge. Kent TN9 1TB www.tfc-group.co.uk
Ensure that the guard is fitted centrally.
5. The flue assembly shall be so placed or shielded as to
prevent ignition or damage to any part of any building.
6. The air inlet/products outlet duct and the terminal of the
boiler MUST NOT be closer than 25mm (1") to combustible
material. Detailed recommendations on the protection of
combustible material are given in BS. 5440-1:2000.
IMPORTANT. It is absolutely essential to ensure, in practice,
that products of combustion discharging from the terminal
cannot re-enter the building or any other adjacent building
through ventilators, windows, doors, other sources of natural
air infiltration, or forced ventilation / air conditioning.
If this should occur the appliance MUST be turned OFF,
labelled as 'unsafe' until corrective action can be taken.
TERMINAL
The terminal assembly can be adapted to accommodate
various wall thicknesses. Refer to Frame 12 .
AIR SUPPLY
It is NOT necessary to have a purpose-provided air vent in the
room or internal space in which the boiler is installed. Neither is
it necessary to ventilate a cupboard or compartment in which the
boiler is installed, due to the low surface temperatures of the
boiler casing during operation; therefore the requirements of BS
6798, Clause 12, and BS 5440:2 may be disregarded.
WATER CIRCULATION SYSTEM
IMPORTANT.
A minimum length of 1 metre of copper pipe MUST be fitted to
both flow and return connections from the boiler before
connection to any plastic piping.
The central heating system should be in accordance with
BS.6798 and, in addition, for smallbore and microbore
systems, BS.5449.
WATER TREATMENT - see Frame 6
GAS SUPPLY
The local gas supplier should 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 supplier.
The boiler MUST be installed on a gas supply with a governed
meter only.
A gas meter can only be connected by the local gas supplier or
by a CORGI registered engineer. In IE by a competent person.
An existing meter should be checked, preferably by the gas
supplier, to ensure that the meter is adequate to deal with the
rate of gas supply required.
N.B. The principle of the 1:1 gas valve ensures that the evo
HE C range is able to deliver it’s full output at inlet pressures
down to 14mb. However if dynamic pressures below 20mb are
experienced ensure this is adequate for ALL other gas
appliances in the property.
Compartment Installations
A compartment used to enclose the boiler should be designed
and constructed specially for this purpose.
An existing cupboard or compartment may be used, provided
that it is modified for the purpose.
In both cases, details of essential features of cupboard /
compartment design, including airing cupboard installation,
are to conform to the following:
zBS 6798 (No cupboard ventilation is required - see ‘Air
Supply’ for details).
zThe position selected for installation MUST allow adequate
space for servicing in front of the boiler.
zFor the minimum clearances required for safety and
subsequent service, see the wall mounting template and
Frame 2. In addition, sufficient space may be required to
allow lifting access to the wall mounting plate.
* Only one reduction down to 25mm is allowable per installation
otherwise BS5440-1 2000 dimensions must be followed.
Flue Terminal Positions Min. Spacing*
1. Directly below, above or alongside an opening
window, air vent or other ventilation opening. 300mm (12")
2. Below guttering, drain pipes or soil pipes. 25mm ( 1")*
BS5440-1 2000 75mm (3")
3. Below eaves. 25mm (1")*
BS5440-1 2000 200mm (8")
4. Below balconies or a car port roof. 25mm (1")*
BS5440-1 2000 200mm (8")
5. From vertical drain pipes or soil pipes. 25mm (1")*
BS5440-1 2000 150mm (6")
6. From an internal or external corner or to a 25mm (1")*
boundary along side the terminal. BS5440-1 2000 300mm (12")
7. Above adjacent ground, roof or balcony level. 300mm (12")
8. From a surface or a boundary facing the terminal. 600mm (24")
9. From a terminal facing a terminal. 1,200mm (48")
10. From an opening in a car port
(e.g. door or window) into dwelling. 1,200mm (48")
11. Vertically from a terminal on the same wall. 1,500mm (60")
12. Horizontally from a terminal on the wall. 300mm (12")
Vertical Terminals
13. Above the roof pitch with roof slope of all angles. 300mm (12")
Above flat roof. 300mm (12")
14. From a single wall face. 300mm (12")
From corner walls. 300mm (12")
Table 4 - Balanced Flue Terminal Position
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9evo HE C - Installation and Servicing
GENERAL
nm8770
2 BOILER DIMENSIONS, SERVICES & CLEARANCES all dimensions in mm (in)
The boiler connections are made on the boiler piping frame.
Refer to Frames 32-34.
The following minimum clearances must be maintained for
operation and servicing.
Additional space will be required for installation, depending
upon site conditions.
Side and Rear Flue
a. Provided that the flue hole is cut accurately, e.g. with a core
drill, the flue can be installed from inside the building
where wall thicknesses do not exceed 600mm (24").
Front clearance
The minimum front clearance when built in to a cupboard is 5mm
(1/4") from the cupboard door but 450mm (17 3/4") overall
clearance is still required, with the cupboard door open, to allow for
servicing.
*Bottom clearance
Bottom clearance after installation can be reduced to 5mm.
However, 100mm must be available for servicing.
Where the space into which the boiler is going to be
installed is less than the length of flue required the flue
must be fitted from the outside.
Installation from inside ONLY
b. If a core boring tool is to be used inside the building the
space in which the boiler is to be installed must be at least
wide enough to accommodate the tool.
REAR FLUE ONLY
MIN. Top clearance required = 145 mm (5 3/4")
SIDE FLUE ONLY
Horizontal length of flue Top clearance
from centre line of boiler required (MIN.)
to outside wall Dim. A
C22/24 C22/30 C22/35
0.5 m 0.5 m 0.5 m 160 mm (6
5/16")
1.0 m 1.0 m 1.0 m 170 mm (6 11/16)
1.5 m 1.5 m 1.5 m 185 mm (7 1/4")
1.5 m 1.5 m 1.5 m 200 mm ( 7 7/8")
2.5 m 2.5 m 2.5 m 210 mm (8 1/4")
3.0 m 3.0 m 3.0 m 225 mm (8
7/8")
3.5 m 3.5 m N/A 250 mm (9 7/8")
4.0 m 4.0 m N/A 260 mm (10
1/4")
4.5 m 4.5 m N/A 265 mm (10 7/16")
5.0 m 5.0 m N/A 275 mm (10 13/16")
5.5 m 5.5 m N/A 290 mm (11 3/8")
6.0 m 6.0 m N/A 300 mm (11
13/16")
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10 evo HE C - Installation and Servicing
GENERAL
General
1. The installation must comply with all relevant national and
local regulations.
2. The installation should be designed to work with flow
temperatures of up to 82 oC.
3. All components of the system must be suitable for a working
pressure of 3 bar and temperature of 110 oC. Extra care should
be taken in making all connections so that the risk of leakage
is minimised.
The following components are incorporated within the
appliance:
a. Circulating pump.
b. Safety valve, with a non-adjustable preset lift pressure of
3 bar.
c. Pressure gauge, covering a range of 0 to 6 bar.
d. An 8-litre expansion vessel, with an initial charge pressure
of 0.75 bar.
4. 'Make-up' Water. Provision must be made for replacing water
loss from the system, either :
a. From a manually filled 'make-up' vessel with a readily
visible water level. The vessel should be mounted at
least 150mm above the highest point of the system and
be connected through a non-return valve to the system,
fitted at least 150mm below the 'make-up' vessel on the
return side of the radiators.
Notes
a. The method of filling, refilling, topping up or flushing
sealed primary hot water circuits from the mains via a
temporary hose connection is only allowed if acceptable
to the local water authority.
b. Antifreeze fluid, corrosion and scale inhibitor fluids
suitable for use with boilers having aluminium heat
exchangers may be used in the central heating system.
Advice should be sought from a local water treatment
company.
THERMOSTATIC RADIATOR VALVES (TRV)
Wolseley Centers Ltd. recommend that heating systems
utilising full thermostatic radiator valve control of
temperature in individual rooms should also be fitted with a
room thermostat controlling the temperature in a space
served by radiators not fitted with such a valve as stated in
BS. 5449.
When thermostatic radiator valves are used, the space
heating temperature control over a living area having a
heating requirement of at least 0.9kW (3000Btu/h) of the
boiler heat output should be achieved using a room
thermostat whilst other rooms are individually controlled by
thermostatic radiator valves. A higher proportion of TRVs
may be used, provided that a bypass between the boiler
flow and return is fitted, to ensure adequate flow when all
TRVs are closed.
For further information refer to the 'Good Practice Guide
143', a publication of the Energy Efficiency Office, available
from the Building Research Establishment, Garston,
Watford WD2 7JR. Tel: + 44 (0) 01923 664258.
ELECTRICAL SUPPLY
WARNING.
This appliance must be earthed.
Wiring external to the appliance MUST be in accordance with the
current I.E.E. (BS.7671) Wiring Regulations and any local regulations
which apply. For IE reference should be made to the current ETCI
rules for electrical installations.
The point of connection to the mains should be readily accessible
and adjacent to the boiler.
Note. The fan voltage is 325V DC for the 35kW boiler.
CONDENSATE DRAIN Refer to Frames 22, 23, 24
and 49.
A condensate drain is provided on the boiler. This drain must be
connected to a drainage point on site. All pipework and fittings in the
condensate drainage system MUST be made of plastic - no other
materials may be used.
IMPORTANT.
Any external runs must be insulated
The drain outlet on the boiler is standard 21.5mm (3/4”) overflow pipe.
3 SYSTEM REQUIREMENTS - Central Heating
Safety valve setting bar 3.0
Vessel charge pressure bar 0.5 to 0.75
System pre-charge pressure bar None 1.0
System volume Expansion vessel
(litres) volume (litres)
25 1.6 1.8
50 3.1 3.7
75 4.7 5.5
100 6.3 7.4
125 7.8 9.2
150 9.4 11.0
175 10.9 12.9
190 11.9 14.0
200 12.5 14.7
250 15.6 18.4
300 18.8 22.1
For other system volumes
multiply by the factor across 0.063 0.074
or
b. Where access to a 'make-up' vessel would be difficult,
by pre-pressurisation of the system.
The maximum cold water capacity of the system
should not exceed 143 litres, if not pressurized.
However, if the system is to be pressurized, the
efficiency of the expansion vessel will be reduced and
a larger vessel (or smaller system volume) may be
necessary. If the capacity of the vessel is not
considered sufficient for this, or for any other reason,
203324-2.pmd 01/10/2007, 08:5110

11evo HE C - Installation and Servicing
GENERAL
4 SYSTEM REQUIREMENTS - CH (continued) and Hot Water
an additional vessel MUST be installed on the return
to the boiler.
Guidance on vessel sizing is given in Frame 3.
5. Filling. The system may be filled by the following method:
a. Through a temporary hose connection from a 'draw-off'
tap, supplied from a service pipe under mains pressure.
Where the mains pressure is excessive a pressure
reducing valve must be used to facilitate filling.
When installing the filling device it must be connected as
shown below, to fully comply with the water regulations.
This may involve the fitting of an additional WRAS
approved isolator valve to the mains supply.
i. Thoroughly flush out the whole system with
cold water.
ii. Fill and vent the system until the pressure
gauge registers 1.5 bar and examine for leaks.
iii. Check the operation of the safety valve by
raising the water pressure until the valve lifts.
This should occur within 0.3 bar of the preset lift
pressure.
iv. Release water from the system until the
minimum system design pressure is reached;
1.0 bar if the system is to be pre-pressurised.
Water Flow Rate and Pressure Loss
Max CH Output kW 23.4
(Btu/h) (80 000)
Water flow rate l/sec 0.37
(gal/min) 4.8
Temperature Differential oC15
(oF) (27)
Head available for m.w.g. 2.3
system pump. (ft.w.g.) 7.5
DOMESTIC HOT WATER
1. The domestic hot water service must be in accordance
with BS 5546 and BS 6700.
2. Refer to Table 1 for minimum and maximum working
pressures.
3. The boilers are suitable for connection to most types of
washing machine and dishwasher appliances.
4. When connecting to suitable showers, ensure that:
a. The cold inlet to the boiler is fitted with an approved
anti-vacuum or syphon non-return valve.
b. Hot and cold water supplies to the shower are of equal
pressure.
CH Return
Ecl 6053
Hose unions
Mains
water supply
Temporary hose
(disconnect after filling)
Additional
stop valve
Doublecheck valve
assembly
(note direction of flow)
The boiler does not normally need a bypass but at least some
radiators on the heating circuit, of load of at least 10% of the
minimum boiler output, must be provided with twin lockshield
valves so that this minimum heating load is always available.
See note regarding thermostatic radiator valves on page 10.
Note. Systems incorporating zone valves which could
completely cut off the flow through the system must also
include a bypass.
BALANCING
1. Set the programmer to ON.
Close the manual or thermostatic valves on all radiators,
leaving the twin lockshield valves (on the radiators referred
to above) in the OPEN position.
5 SYSTEM BALANCING
Turn up the room thermostat and adjust these lockshield
valves to give boiler flow and return temperatures not
more than 20 oC apart.
These valves should now be left as set.
2. Open all manual or thermostatic radiator valves and
adjust the lockshield valves on the remaining radiators,
to give around 15 oC temperature drop at each radiator.
3. Adjust the room thermostat and programmer to
NORMAL settings.
5. Hard Water Areas
Where the water hardness exceeds 200mg/litre, it is
recommended that a proprietary scale reducing device is
fitted into the boiler cold supply within the requirements of
the local water company.
IMPORTANT
Provision MUST be made to accommodate the expansion of
DHW contained within the appliance, if a non-return valve is
fitted to the DHW inlet.
203324-2.pmd 01/10/2007, 08:5111

12
INSTALLATION
evo HE C - Installation and Servicing
6 WATER TREATMENT
CENTRAL HEATING
The evo HE range of boilers have an ALUMINIUM alloy
heat exchanger.
IMPORTANT.
The application of any other treatment to this product
may render the guarantee of Wolseley Centers Ltd..
Wolseley Centers Ltd. recommend Water Treatment in
accordance with the Benchmark Guidance Notes on
Water Treatment in Central Heating Systems.
If water treatment is used Wolseley Centers Ltd. recommend
only the use of FERNOX-COPAL or MB1, GE BETZ SENTINEL X100
or Salamander Corrosion Guard inhibitors and associated
water treatment products, which must be used in accordance
with the manufacturers' instructions.
Notes.
1. It is most important that the correct concentration of the
water treatment products is maintained in accordance with
the manufacturers' instructions.
2. If the boiler is installed in an existing system any unsuitable
additives MUST be removed by thorough cleansing. BS
7593:1992 details the steps necessary to clean a domestic
heating system.
3. In hard water areas, treatment to prevent lime scale may be
necessary - however the use of artificially softened water is
NOT permitted.
4. Under no circumstances should the boiler be fired before
the system has been thoroughly flushed.
DOMESTIC HOT WATER
In hard water areas where main water can exceed 200ppm
Total Hardness (as defined by BS 7593:1993 Table 2) a
scale reducing device should be fitted into the boiler cold
supply within the requirements of the local water company.
The use of artificially softened water, however, is not
permitted.
Wolseley Centers Ltd. recommend the use of Fernox
Qantomat, GE Betz Sentinel Combiguard and Calmag
CalPhos I scale reducing devices, which must be used in
accordance with the manufacturers' instructions.
19. Gas control valve.
20. Fan bracket.
21. Orifice plate.
23. Control thermistor (flow/return)
24. Overheat thermostat.
25. Ignition electrode.
26. Flame detection electrode.
32. Kit - Trap and seal.
35. User control.
36. Primary controls (PCB).
39. Mains switch.
40. Spark generator.
44. Piping frame.
51. Mains connector.
53. Turret gasket kit.
57. CH stub pipe.
59. Flow restrictor.
1. Front casing panel.
2. Boiler sealing panel.
3. Sump cover.
4. Bottom casing panel.
5. Flue sensing nipple.
6. Return pipe.
8. Flue manifold.
9. Flue manifold fixing.
10. Interpanel.
11. Burner.
12. Combustion chamber insulation.
13. Heat exchanger.
14. Injector and housing.
15. Venturi assembly.
16. Fan assembly.
17. Automatic air vent.
18. Gas service cock.
7 BOILER ASSEMBLY - Exploded View Legend
60. DHW inlet/outlet pipe.
61. Pressure relief valve.
62. Expansion vessel.
63. Expansion vessel pipe.
64. Pressure gauge.
65. DHW thermistor.
66. *Diverter valve head.
67. *Diverter valve.
68. *Diverter valve manifold.
69. *Pump (WILO pump shown).
70. Pump manifold.
71. DHW plate heat exchanger.
75. Control box clamp.
94. Ignition lead.
103. Dry fire thermistor.
For further information contact:
Fernox Manufacturing Co. Ltd
Cookson Electronics
Forsyth Road
Sheerwater
Woking
Surrey GU21 5RZ
[phone]
Sentinel Performance Solutions
The Heath Business & Technical Park
Runcorn
Cheshire WA7 4QX
Tel: [phone]
www.sentinel-solutions.net
Salamander Engineering Ltd
Unit 24 Reddicap Trading Estate
Sutton Coldfield
West Midlands B75 7BU
Tel: [phone]
Calmag Ltd.
Unit 4-6, Crown Works
Bradford Road
Sandbeds, Keighley
West Yorkshire BD20 5LN
Tel: [phone]
Note. Two waterset assemblies are used on this appliance, WILO and CP. These units are not interchangeable.
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13
INSTALLATION
evo HE C - Installation and Servicing
8 BOILER ASSEMBLY - Exploded View
nm8771
1
8
544
53
14
15
62
59
18
64
4
75
35
36
66
6
11
12
40
39
21
16
70
61
57
60
5165
20
263
Data badge
94
67
23
23
68
24
19
57
60
32
69
WILO
pump
shown
13
71
26
25
3
103
10
17
INSTALLATION
203324-2.pmd 01/10/2007, 08:5113

14
INSTALLATION
evo HE C - Installation and Servicing
nm8452
A
B
C
D
E
F
G
H
I
JK
L
R
M
N
O
P
Q
9 UNPACKING
The boiler is supplied fully assembled in one Pack A, together with a telescopic flue
assembly for lengths up to 595mm, rear or side flue outlet, in Pack B.
Unpack and check the contents.
Pack A Contents
A Boiler
B Hardware Pack Box
C Pre-piping Frame
D These Installation/Users
Instructions
E Wall Mounting Template
F 1 Year Guarantee
nm8035
B
CE
A
D
F
Hardware Pack Contents
A Isolation valve c/w pressure gauge - 1 off
B Isolation valve c/w drain - 1 off
C Bulkhead connector - 1 off
D Restrictor valve - 1 off
E Compression gas cock - 1 off
F Valve securing clip 22mm - 2 off
G Valve securing clip 15mm - 3 off
H Pre-piping frame support bracket - 1 off
I S-trap hose - 1 off
J 15mm olive - 1 off
K Pressure relief valve nut - 1 off
L No. 14x2in woodscrew - 4 off
M Wallplug - 4 off
N Fibre washer 19 ID x 26 OD - 3 off
O 12mm sealing washer - 3 off
P Gas line sealing washer - 1 off
Q Hole plug white - 6 off
R Mains connector - 1 off
Pack B Contents
A Telescopic flue terminal
B Flue turret
C Screws
D Sealing tape
nm8751
A
BC
D
INSTALLATION
203324-2.pmd 01/10/2007, 08:5114

15
INSTALLATION
evo HE C - Installation and Servicing
1. Ensure the boiler is on a sound flat surface.
2. Carefully remove the strapping.
3. Fold back the top flaps to gain access to:
zInstructions.
zWall mounting template.
z1 year guarantee.
zPre-piping frame.
4. Remove the instructions and read thoroughly
before unpacking the product.
5. When ready for installation lift off the cardboard
carton.
10 PACKAGING REMOVAL
11 BOTTOM PANEL REMOVAL
1. Remove the screws from the underside of
the boiler.
2. Pull the RHS of the panel down, slide it to
the right and withdraw.
3. Remove the screws from bottom of the front
panel.
4. Lift panel up and off top pegs.
Boiler
Hardware
packbox
Pre-piping
frame
nm8036
Retaining
clip
2
1
3
nm8037
INSTALLATION
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16
INSTALLATION
evo HE C - Installation and Servicing
12 DETERMINING THE FLUE LENGTH AND FLUE PACKS REQUIRED
FLUE KITS
Pack B - supplied as standard
Pack D - optional extension kit for side flue or rear flue outlet.
Finishing Kit - Supplied as an optional extra.
Refer to 'Flue Extension Ducts'
IMPORTANT. The boiler MUST be installed in a vertical position
Dimension X - Wall thickness.
Dimension L - Wall thickness plus boiler spacing.
Dimension S - Stand-off frame depth = 33mm
Wall Thickness X
160mm
160+ S = 193mm
nm8943
Notes.
1. When extension ‘D’ packs are used the flue duct MUST be
inclined at 1.5 degrees to the horizontal to allow condensate
to drain back into the boiler and out through the condensate
drain.
2. If the telescopic ‘B’ pack, or horizontal flue terminal (600 long)
only are used, they may be mounted horizontally. The 1.5
degreesis taken care of by the inclination of the flue within the
air pipe.
3. If the boiler is to be installed with upward piping routed
behind the boiler then the optional stand-off kit should be
used. Care must be taken when cutting the ducts and
marking the wall to suit this condition.
Total Flue length dimension Flue
(measuring from CL of turret to outside wall)
Rear flue Side flue Extra packs Boiler
dim. X+160 dim. L+195 required Size
Up to 595 mm Up to 595 mm none C22/24, 30 & 35
Up to 1545 mm Up to 1545 mm Pack D - 1 off C22/24, 30 & 35
Up to 2495 mm Up to 2495 mm Pack D - 2 off C22/24, 30 & 35
Up to 3445 mm Up to 3445 mm Pack D - 3 off C22/24, 30 & 35*
Up to 4395 mm Up to 4395 mm Pack D - 4 off C22/24 & 30
Up to 5345 mm Up to 5345 mm Pack D - 5 off C22/24 & 30
Up to 6000 mm Up to 6000 mm Pack D - 6 off C22/24 & 30
*evo HE C22/35 is capable of 3m flue only
195mm
195mm
Wall Thickness X
Side flue length L
REAR FLUE
SIDE FLUE
Note. MAXIMUM FLUE LENGTHS:
C22/24 & C22/30 - 6M (HORIZONTAL FLUE)
C22/35 - 3M (HORIZONTAL FLUE)
C22/24, C22/30 & C22/35 - 7.5M (ROOF FLUE)
C22/24, C22/30 & C22/35 - 5M PRIMARY AND 17M SECONDARY IS A TYPICAL MAX.
FLUE LENGTH. (For alternative details refer to Powered Vertical
Instructions)
90OELBOW KIT 60/100 (EQUIVALENT FLUE LENGTH RESISTANCE = 1M)
45OELBOW KIT 60/100 (EQUIVALENT FLUE LENGTH RESISTANCE = 0.6M)
C22/24, C22/30 & C22/35 - 18M TOTAL (AIR PLUS FLUE DUCT-60/60 TWIN FLUE KIT)
C22/24, C22/30 & C22/35 - 60M TOTAL (AIR PLUS FLUE DUCT - 80/80 TWIN FLUE KIT)
MINIMUM HORIZONTAL FLUE LENGTHS - TELESCOPIC TERMINAL = 370MM
(Centre Line of turret to outside of wall terminal) - ONE PIECE TERMINAL = 285MM
INSTALLATION
203324-2.pmd 01/10/2007, 08:5116

17
INSTALLATION
evo HE C - Installation and Servicing
FLUE OUTLET
1
nm8760
Note.
The template shows the positions of the fixing holes and
the flue hole centres for standard installation and for using
the stand-off kit. Care MUST be taken to ensue the correct
holes are drilled.
1. Separate the templates.
2. Tape template A into the selected position.
3. Ensure squareness by hanging a plumbline as shown. If
fitting a side flue extend the flue centre line onto the side
wall and tape template Binto the selected position.
4. Mark onto the wall the following:
aThe piping frame screw positions (choose one from
each group).
b. The position of the flue duct hole (see diagram below
and template).
Note. Mark the centre of the hole as well as the
circumference
5. Remove the template from the wall.
14 WALL MOUNTING TEMPLATE
13 FLUE ASSEMBLY - Exploded View
An optional flue duct extension kit is required for
wall thicknesses greater than :
Side 395mm
Rear 435mm
Rear flue arrangement shown
Ecl 2360
V
A
B
Extended centre line
nm8772
C22/35
C22/24 & C22/30
LEGEND
1. Duct assembly.
2. Flue turret.
3. Turret gasket.
4. M5 x 10 pozi screw.
5. Turret clamp.
203324-2.pmd 01/10/2007, 08:5117

18
INSTALLATION
evo HE C - Installation and Servicing
FLUE OUTLET
15 PREPARING THE WALL
IMPORTANT.
Ensure that, during the cutting operation, masonry
falling outside of the building does not cause damage
or personal injury.
1. Cut the flue hole (preferably with a 5" core boring
tool), ensuring that the hole is square to the wall.
Both wall faces immediately around the cut hole
should be flat.
2. Drill 4 holes with a 7.5mm / 8mm masonry drill
and insert the plastic plugs, provided, for the
piping frame.
3. Locate 4 No.14 x 50mm screws in the piping
frame (one at each side, in any of the 3 holes
provided at each side) and screw home.
2011
X
Section
through wall
Note. Check all of the hole
positions before drilling.
Side flue only
5" diameter hole
Rear flue only
5" diameter hole
17 SETTING THE FLUE - SIDE Wall thicknesses of 170 to 395mm
16 SETTING THE FLUE - REAR Wall thicknesses of 210 to 435mm
Notes.
a. If using the extension ducts go to Frame 18.
b. For shorter flue requirements use non telescopic B
Pack.
1. Measure and note wall thickness X. Refer to Frame 12.
2. Measure distance from side of boiler to inside of wall
and add to wall thickness X=L. Refer to Frame 12.
3. Add 115mm to dimension L and set telescopic flue
length as indicated in drawing.
4. Using a 3.5mm drill bit, drill two holes in outer air duct
taking care not to pierce plastic inner flue.
5. Fix to length using self tappers provided.
6. Seal outer air duct using the tape provided.
Notes.
a. If using the extension ducts go to Frame 18.
b. If the stand-off frame is used it is essential to add 33mm
to dimension X.
c. For shorter flue requirements less than 210mm, use non
telescopic B Pack.
1. Measure and note wall thickness X. Refer to Frame 12.
2. Add 75mm to dimension X and set telescopic flue length
as indicated in drawing.
3. Using a 3.5mm drill bit, drill two holes in outer air duct
taking care not to pierce plastic inner flue.
4. Fix to length using self tappers provided.
5. Seal outer air duct using the tape provided.
nm8944
X + 75
Drill hole Adhere sealing tape
Measurement to be
taken from this point
nm8945
L + 115
Drill hole Adhere sealing tape
Measurement to be
taken from this point
203324-2.pmd 01/10/2007, 08:5118

19
INSTALLATION
evo HE C - Installation and Servicing
FLUE OUTLET
1. A maximum of 6 extension ducts for the C22/24
& C22/30 and a maximum of 3 extension ducts
for the C22/35 (one suitably cut) plus the
standard flue duct may be used together.
2. Flue extensions of greater length than 1m (39")
should be supported with the bracket provided,
suitably adjusted. Refer to Frames 18 and 26.
19 FLUE EXTENSION DUCTS - continued
18 FLUE EXTENSION DUCTS - For total flue lengths greater than 595mm
Pack D Flue extension duct kit contents
Note. Side flue shown
General arrangement
Flue duct support
Flue support cutting aid
(shown folded up)
Wall plugs - 4 off
Extension duct & clamp
1.0m (39") long
No. 10 x2" wood screw - 4 off
nm8732
nm8762
Boiler
Standard flue
Terminal grille
Flue length
Extension flue
Use a maximum of 6m extended flue ONLY (C22/24 & 30)
Use a maximum of 3m extended flue ONLY (C22/35)
20 FITTING THE KIT
Because of the flexibility of the telescopic flue terminal it is not
always necessary to cut an extension pack.
1. Measure the total flue length from the centre of the boiler
outlet to the outside wall.
2. Subtract 70mm from this dimension.
3. Subtract 950mm for each ‘D’ pack to be used.
4. If the remainder Y is 300mm -
525mm this can be taken up
by the adjustment in the
telescopic flue.
5. If the remainder Y is 525mm -
950mm it will be necessary to
cut a ‘D’ pack to 400mm.
6. if the remainder Y is less than 300mm, shorten the
previous ‘D’ pack to 400mm and adjust the telescopic
terminal.
7. Measure and mark the length on the flue, to ensure a
square cut mark the flue all the way around and cut to
length.
L
300
525
Y
950
70
esp8940
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20
INSTALLATION
evo HE C - Installation and Servicing
FLUE OUTLET
21 FITTING THE PIPING FRAME AND VALVES (Rear Flue outlet shown)
TO FIT THE PRE-PIPING FRAME DIRECTLY TO THE WALL
•Insert wall plugs.
•Put the screws into the wall plugs and leave 10mm proud
•Hang the frame onto the screws (take care to use the
same hole position from each group as previously chosen
with the wall template) and tighten up.
•Locate the support bracket on the piping frame.
Note. Service connections may be made now, before mounting the boiler, if required. Refer to Frames 27-29.
Piping
frame
Wall
plug
Screw
(10mm proud)
Support
bracket
nm8443
Note. Isolating valves are supplied separately in the hardware pack box.
Fit to the piping frame BEFORE mounting the boiler.
Piping
frame
Wall
plug
Screw
(10mm proud)
Support
bracket
nm8444
TO FIT THE PRE-PIPING FRAME USING THE STAND-OFF FRAME
OPTION KIT (To allow pipework to be taken upwards)
•Put the screws into the wall plugs and leave 10mm proud.
•Hang the stand-off frame onto the screws and tighten up.
• Fasten the piping frame to the stand-off frame with the
6mm screws provided.
• Locate the support bracket on the piping frame.
Note.
If the clearances above and below the boiler are less than
the length of the pipes it will be necessary to position the
pipes behind the wall mounting plate BEFORE the plate is
screwed to the wall.
nm8453
Valve securing
clip 15mm
Valve securing
clip 22mm
Valve securing
clip 22mm
Isolation valve
c/w pressure
gauge
Bulkhead
connector
Compression
gas cock
Restrictor
valve
Isolation valve
c/w drain
1. Remove valves and clips from
the hardware pack box.
2. Assemble valves to the frame
and secure in place with clips
provided.
3. Make sure to fit valves in
correct order shown.
203324-2.pmd 01/10/2007, 08:5120