ACV EVO S User manual

EVO S
Plate Heat Exchanger Kits
40-150 kW Natural Gas
and 40-120 kW Propane
When replacing any part on this
appliance, use only spare parts that you
can be assured conform to the safety
and performance specification that we
require. Do not use reconditioned or
copy parts that have not been clearly
authorised by ACV.
For the very latest copy of literature for
specification and maintenance practices
visit our website www/acv/com/gb
where you can download the relevant
information in PDF format.
I
03/2023
UIN 236072-A01

2Plate Heat Exchanger Kits
IMPORTANT
THESE INSTRUCTIONS MUST BE USED IN CONJUNCTION WITH THE
FRAME & HEADER KIT INSTRUCTIONS SUPPLIED WITH THE EVO S
HEADERS
CONTENTS
1 Introduction.....................................................................3
2 General Description of Cascade Systems ...................3
3 Multiple Boiler System Components............................5
4 Plate Heat Exchanger Kit (Optional Accessory)..........9
5 Installation Drawings for Multiple Boiler Systems....10
Boiler Water Header Size Maximum No. Boilers
in Cascade
Maximum Output
in Cascade (kW)
Evo S 40 DN50 4 160
Evo S 60 DN50 4 240
Evo S 70 DN50 4 280
Evo S 80 DN80 4 320
Evo S 100 DN80 4 400
Evo S 120 DN80 3 360
Evo S 150 DN100 3 450
Evo S - DISCLAIMER
Not all cascades included in this manual are available at initial product launch.
For availability refer to the table below:
Note: This information will be updated in the next revision of this manual.

3
Plate Heat Exchanger Kits
1 INTRODUCTION
This technical data contains information for dimensioning & assembly of a
cascade system kit for the Evo S.
GENERAL DESCRIPTION OF FRAME & HEADER KITS
A requirement to spread the total required heat output over several boilers can
be accommodated by the use of the Evo S multiple boiler frame & header kit
options.
The ue congurations for the range of appliances using these system kits are
C13, C33 & B23 (See appliance manual). Note. In the case of the 150 kW
boiler, this must be ued in accordance to the Clean Air Act.
All headers and pipe work should be insulated in accordance with the Non
Domestic Building Services Compliance Guide. To ensure compliance with the
maximum heat loss criteria, insulation thickness should be calculated according
to BS EN ISO 12241 using standardised assumptions.
2.1 FRAME AND HEADER KIT DESIGN OPTIONS
Note: All boilers need to be sized in accordance to the total required
heat load and the modulation capabilities of the appliances.
2 GENERAL DESCRIPTION OF CASCADE SYSTEMS
continued . . . . .
Max Boilers in Cascade @ stated
Header Size PHEX Options
Boiler Type Boiler Header
Size
No Max Output
(kW)
Evo S 40 DN50 4 160
60 kW, 150 kW, 300 kWEvo S 60 DN50 4 240
Evo S 70 DN50 4 280
Evo S 80 DN80 6 480
150 kW, 300 kW, 450 kW, 600 kWEvo S 100 DN80 6 600
Evo S 120 DN80 5 600
Evo S 150 DN100 6 900 300 kW, 450 kW, 600 kW, 750 kW, 900 kW
Note: The total system output must not exceed the Plate Heat
Exchanger Kit Rating.
One Plate Heat Exchanger Kit required per cascade.
Table 1 - Cascade Options
Table 2 - Available Boilers
kW Product No.
Evo S 40 100008264200
Evo S 60 100008264300
Evo S 70 100008265900
Evo S 80 100008264400
Evo S 100 100008264500
Evo S 120 100008264600
Evo S 150 100008264700
PHE Kits (kW) Outlet Connection Size
60 DN25 FLANGE
150
300
DN50 FLANGE450
600
750 DN80 FLANGE
900
Table 3 - PHEX Kit Outlet Connection Size

4Plate Heat Exchanger Kits
2.2 MULTIPLE BOILER INSTALLATIONS
For installing 1 to 6 boilers, the product range includes water and gas headers capable of assembly using threaded socket,
compression and PN6 ange connections.
2.3 SYSTEM SEPARATION: LOW LOSS HEADER & PLATE HEAT EXCHANGER
A low loss header or plate heat exchanger allows ow separation within a heating system.
This allows two ow circuits to operate with their own ow and pressure drop environments whilst e󰀨ectively transferring heat to its
adjoined water circuit.
This enables the modern high resistant, high e󰀩ciency boilers to operate under their optimum conditions, while the main heating circuit
operates to its own controlled optimum requirements. ACV's brazed plate heat exchangers ensure optimum heat transfer e󰀩ciency and
low resistance within a compact footprint. The heat exchanger allows hydraulic segregation between the boiler primary and secondary
heating circuits. Used in conjunction with ACV's 40-70 kW and 80-150 kW frame and header kits covering duties from 60 kW to 900 kW.
The design is based on standard components and a modular brazed concept. Each unit is manufactured to the highest standard and
part of the AHRI certied program that ensures thermal performance in accordance with the product specications.
Benets
• Compact design
• No gaskets
• Easy install with ACV's Commercial Frame and Header Kits
• Low maintenance/ self-cleaning
• All units are pressure tested
2.4 OUTPUT CONTROL
All pumps are designed to be wired to the appliance to allow a controlled pump over run.
If using an external pump control system the capability of a timed pump over run signal provided by the appliance must be maintained
at all times.
The optional LPB bus accessory control can be installed (1 per boiler) to enable cascade control.
2.5 GAS SUPPLY
All Evo S boilers are compatible with natural gas or propane except the 150 kW model which is natural gas only.
Connection to the gas supply must be in accordance to with all the applicable regulations.
A single frame and DN50 water header kit will require the gas inlet to be made up to the gas tap provided, connecting it to the inlet of
the appliance.
Frame and header kits will be supplied with a 2” or 3" gas header and all the necessary components and pipe work to connect it to the
appliances.
Note: Test points are provided at each end of the 2” or 3" gas header. The test point nearest to the gas inlet is intended to be used as
the appliance inlet pressure point.
2.6 ASSEMBLY
The frames must be located in a suitable place that a󰀨ords a at and level oor-area of suitable load bearing capacity. Care must be
taken when locating the frames that space is available for the servicing, installation and maintenance of the appliance and all of the
associated connections and equipment. (See appliance manuals)
When using multiple frames they must be bolted together and where necessary secured to the oor.
2.7 SAFE HANDLING
Installation 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 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 personal protective equipment as appropriate, e.g. gloves, safety footwear

5
Plate Heat Exchanger Kits
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
3 MULTIPLE BOILER SYSTEM COMPONENTS
3.1 GENERAL
The multiple boiler systems consist of the following components:
• Frame and Header kit (1 or 2 wide)
• Boiler gas header.
• Boiler ow and return headers supported on mounting skid
• Hardware pack (includes essential connection and valve components)
• Boiler Shunt pump (MUST be used, sold seperately)
3.2 MAIN WATER HEADERS
Each header kit provides water ow and return headers sized either DN50, DN80 or DN100 dependent on total maximum combined
heating output required.
3.3 GAS HEADER
The Gas header consists of custom manufactured manifolds of either 2" or 3" (depending on total heating output). This is located in a
cradle incorporated within the header mounting skid.
3.4 LOW LOSS HEADERS (MIXING HEADER) OPTION
The mixing headers are supplied with an auto air vent and drain point as standard.
3.5 BOILER SHUNT PUMP
Pump kits and External pump controls (sold separately) are designed to provide the optimum ow around the appliance water circuit
ensuring the maximum ow rates are contained within the design constraints of the appliance.
It is not recommended to t additional pumps directly to the appliance circuit unless they have been designed to ensure the maximum
permissible appliance ow rate is not exceeded.

6Plate Heat Exchanger Kits
3.6 BOILER CONNECTION KITS
The connection kit contains the following components:
1. Boiler return leg complete with isolating valve, pump,
non return valve, drain cock and bre seals
2. Boiler ow leg complete with isolating valve, pressure
relief valve and bre seals
3. Header blanking anges, fasteners and gaskets
4. Mixing header fasteners and gasket
3.7 INSTALLATION AREA AND DIMENSIONS
Care must be taken to ensure adequate access for boiler / cascade system installation and servicing.
A minimum of 450 mm clearance must be provided from the front of the installed boilers in cascade to facilitate boiler servicing.
Additional clearance must also be considered in the event of boiler replacement.
Consideration to connecting heating ow and return pipework, gas supply and condensate drainage must be given. Routing of the
condensate drain must be made to allow a minimum fall of 1 in 20 away from the installed boilers in cascade, throughout its length.
Adequate room above the boilers must be provided to install and service the boiler ue system. Further information with respect to ue
and condensate drain connection is provided in the installation and servicing instructions provided within the boilers packaging carton.
REV.BY ECN No. DATE
ALL DIMENSIONS IN MM
DO NOT SCALE, IF IN DOUBT - ASK.
DRAWING VOID IF AMENDED MANUALLY
MATERIAL
DRAWN BY
CHECKED BY
ECN No.
FINISH DATE
SCALE NTS
FIRST
ANGLE
PROJECTION
THIS DOCUMENT IS COPYRIGHT PROTECTED BY IDEAL BOILERS.
IT MUST NOT BE COPIED, REPRODUCED OR COMMUNICATED
TO ANY THIRD PARTY WITHOUT CONSENT OF IDEAL BOILERS.
THIS DRAWING REFERENCES A 3D FILE OF THE SAME
NAME AND UIN. ADDITIONAL DETAIL CAN BE GAINED
FROM THIS 3D FILE
2
2
3
3
4
4
4
REV.BY ECN No. DATE
ALL DIMENSIONS IN MM
DO NOT SCALE, IF IN DOUBT - ASK.
DRAWING VOID IF AMENDED MANUALLY
MATERIAL
DRAWN BY
CHECKED BY
ECN No.
FINISH DATE
SCALE NTS
FIRST
ANGLE
PROJECTION
THIS DOCUMENT IS COPYRIGHT PROTECTED BY IDEAL BOILERS.
IT MUST NOT BE COPIED, REPRODUCED OR COMMUNICATED
TO ANY THIRD PARTY WITHOUT CONSENT OF IDEAL BOILERS.
THIS DRAWING REFERENCES A 3D FILE OF THE SAME
NAME AND UIN. ADDITIONAL DETAIL CAN BE GAINED
FROM THIS 3D FILE
2
2
3
3
4
4
1
2
3
4
5
6
REV.BY ECN No. DATE
ALL DIMENSIONS IN MM
DO NOT SCALE, IF IN DOUBT - ASK.
DRAWING VOID IF AMENDED MANUALLY
MATERIAL
DRAWN BY
CHECKED BY
ECN No.
FINISH DATE
SCALE NTS
FIRST
ANGLE
PROJECTION
THIS DOCUMENT IS COPYRIGHT PROTECTED BY IDEAL BOILERS.
IT MUST NOT BE COPIED, REPRODUCED OR COMMUNICATED
TO ANY THIRD PARTY WITHOUT CONSENT OF IDEAL BOILERS.
THIS DRAWING REFERENCES A 3D FILE OF THE SAME
NAME AND UIN. ADDITIONAL DETAIL CAN BE GAINED
FROM THIS 3D FILE
2
2
3
3
4
4
1
2
3
3
4
5
6
7
REV.BY ECN No. DATE
ALL DIMENSIONS IN MM
DO NOT SCALE, IF IN DOUBT - ASK.
DRAWING VOID IF AMENDED MANUALLY
MATERIAL
DRAWN BY
CHECKED BY
ECN No.
FINISH DATE
SCALE
NTS
FIRST
ANGLE
PROJECTION
THIS DOCUMENT IS COPYRIGHT PROTECTED BY IDEAL BOILERS.
IT MUST NOT BE COPIED, REPRODUCED OR COMMUNICATED
TO ANY THIRD PARTY WITHOUT CONSENT OF IDEAL BOILERS.
THIS DRAWING REFERENCES A 3D FILE OF THE SAME
NAME AND UIN. ADDITIONAL DETAIL CAN BE GAINED
FROM THIS 3D FILE
2
2
3
3
4
4
1
2
3
4
56
7
8
9
3
2
1
5
FLOW RETURN
LEGEND
1. Isolation Valve
2. Boiler Flow Flexible
Connection
3. Pump Union
4. Pump inc Gaskets
5. Non Return Valve
6. 1 ¼” x 1 ¼” x ¾” Tee
7. Drain Cock
LEGEND
1. Isolation Valve
2. 1 ¼” Male/Female Swivel
Elbow
3. Boiler Flow Flexible
Connection
4. 1 ¼” Male Parallel/Taper
Hex Nipple
5. 1 ¼” x 1 ¼” x ¾” Tee
6. ¾” Taper Plug
LEGEND
1. Isolation Valve
2. 1 ¼” Male/Female Mac
Union
3. Boiler Flow Flexible
Connection
4. Pump inc Gaskets
5. Flange Pump Adapter
6. 1 ¼” Male Parallel/Taper
Hex Nipple
7. Non Return valve
8. 1 ¼” x 1 ¼” x ½” Tee
9. Drain Cock
LEGEND
1. Isolation Valve
2. Boiler Flow Flexible
Connection
3. 1 ¼” Male Parallel/Taper
Hex Nipple
4. 1 ¼” x 1 ¼” x ¾” Tee
5. ¾” Taper Plug
FIGURE 1 - DN50 and DN80
FIGURE 2 - DN100

7
Plate Heat Exchanger Kits
3.8 SYSTEM REQUIREMENTS
Notes.
1. Ancillary components can be connected to the system via the G ¾” tapping’s on the header blanking anges. See
diagram below for guidance (diagram for illustration purposes only).
2. The method of lling, relling, topping up or ushing sealed primary circuits from the mains via a temporary hose
connection is only allowed if acceptable to the local water authority.
3. When installing the lling device, it must be connected as shown to fully comply with the water regulations. This
may involve the tting of an approved WRAS approved isolator valve to the mains supply, and appropriate back ow
prevention device.
Pressure relief valve (Supplied with boiler)
1. A spring loaded non-adjustable (40-70 kW) 4 bar and (80-150 kW) 6 bar pressure relief valve complying with the
relevant standards of BS6759 Pt1 is tted close to the boiler with no intervening valve or restriction.
2. A manual testing device.
3. The pressure relief valve outlet should be piped to ensure discharge cannot create a hazard to personal or damage
electrical components or wiring.
Pressure gauge (Not supplied)
A pressure gauge must be tted to the system visible from the lling point.
Expansion vessel (Not supplied)
1. A diaphragm type expansion vessel complying with BS. EN 13831 must be tted without incorporating isolation valves of
any sort.
2. The vessel capacity must be adequate to accept the expansion of system water when heated to 110 °C.
3. The charge pressure must not be less than the static water head above the vessel. The pressure attained in the system
when heated to 110 °C should be at least 0.35 bar less than the lift pressure of the pressure relief valve. For guidance
on vessel sizing refer to the Table 4.
Note: The largest Plate Heat Exchanger (900 kW) with 6 x Evo S 150 kW boilers would require a 18 litre expansion vessel.
System drain cock (Not supplied)
A drain cock should be tted to the lower blanking ange on the lowest header.
Pressure Gauge
Expansion Vessel Drain Cock
Return
Flow
Double check valve or
RPZ assembly
(note direction of ow)
Additional
stop valve
Hosepipe
(disconnect
after lling)
Water
Supply
Headers
Temporary Hose
(disconnect
after lling)
Hose unions
Blanking Flanges
Plate Heat
Exchanger Kits
(kW)
Recommended
Expansion Vessel
Capacity (litre)
60 4
150 4
300 8
450 12
600 12
750 18
900 18
Table 4 - Vessel size

8Plate Heat Exchanger Kits
IMPORTANT POINTS
Before commencing installation:
When frame mounting:
• The frames must stand on a at and level oor of suitable load
bearing capacity.
• When using a frame and header kit, the header must be bolted to
the frame before the hoses are connected to the boiler.
MOUNTING FRAME MUST BE SECURED TO
THE FLOOR WITH BOLTS
These Installations refer to perpendicular wall and oor. If walls are
not perpendicular, it is recommended that a frame and header kit be
used. The correct number of frames and headers should be ordered.
Allowances must be made for installation where features are in place
that may a󰀨ect the nominal installation conditions.

9
Plate Heat Exchanger Kits
4 PLATE HEAT EXCHANGER KIT (OPTIONAL ACCESSORY)
4.1 PLATE HEAT EXCHANGER
Plate Heat Exchanger Blanking Flange
4.2 FITTING PLATE HEAT EXCHANGER AND BLANKING FLANGES
1. Fit the Plate Heat Exchanger and blanking anges in the chosen positions.
Note: Plate Heat Exchanger can be located either LHS or RHS of the headers.
REV.BY ECN No. DATE
ALL DIMENSIONS IN MM
DO NOT SCALE, IF IN DOUBT - ASK.
DRAWING VOID IF AMENDED MANUALLY
MATERIAL
DRAWN BY
CHECKED BY
ECN No.
FINISH DATE
SCALE NTS
234
PROJECTION
THIS DOCUMENT IS COPYRIGHT PROTECTED BY IDEAL BOILERS.
IT MUST NOT BE COPIED, REPRODUCED OR COMMUNICATED
TO ANY THIRD PARTY WITHOUT CONSENT OF IDEAL BOILERS.
THIS DRAWING REFERENCES A 3D FILE OF THE SAME
NAME AND UIN. ADDITIONAL DETAIL CAN BE GAINED
FROM THIS 3D FILE
234

10 Plate Heat Exchanger Kits
5 INSTALLATION DRAWINGS FOR MULTIPLE BOILER SYSTEMS
5.1 GENERAL
Note: The total system output must not exceed the Plate Heat Exchanger Kit Rating - refer to Table 1 for the range of
Plate Heat Exchanger kits available.

11
Plate Heat Exchanger Kits
SYSTEM RETURN
DN25 PN6 FLANGE
SYSTEM FLOW
DN25 PN6 FLANGE
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE
ON EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. FRAME (UIN 232857) ONE SUPPLIED PER BOILER.
3. OPTIONAL 150kW PLATE HEAT EXCHANGER (UIN 232890)
ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 40kW/60kW/70kW
1000
250500
197
591
613
613
450
120
TOP OF BOILER1389
TOP OF FRAME1418
541
120
586
1000
1545
685
396
763
300
5.2.1 INSTALLATION DRAWING OF 1 BOILER ON DN50 FRAME & HEADER KIT WITH
60 kW PLATE HEAT EXCHANGER
1418 TOP OF FRAME
TOP OF BOILER1389
541
613
147
500
SYSTEM FLOW
DN25PN6 FLANGE
SYSTEM RETURN
DN25 PN6 FLANGE
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE
ON EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. FRAME (UIN 232857) ONE SUPPLIED PER BOILER.
3. OPTIONAL 60kW PLATE HEAT EXCHANGER (UIN 232889)
ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 40kW/60kW
541
563
250
500
450
120
934
120
586
685
396
763
300
5.2.2 INSTALLATION DRAWING OF 2 BOILER ON DN50 FRAME & HEADER KIT WITH
150 kW PLATE HEAT EXCHANGER
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT
THE INSTALLATION.
2. OPTIONAL 60 kW PLATE HEAT EXCHANGER (XB150035)
ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 40 kW / 60 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT
THE INSTALLATION.
2. OPTIONAL 150 kW PLATE HEAT EXCHANGER (XB150036)
ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 40 kW / 60 kW / 70 kW

12 Plate Heat Exchanger Kits
5.2.3 INSTALLATION DRAWING OF 3 BOILERS ON DN50 FRAME & HEADER KIT WITH
150 kW PLATE HEAT EXCHANGER
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE
ON EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. FRAME (UIN 232857) ONE SUPPLIED PER BOILER.
3. OPTIONAL 150kW PLATE HEAT EXCHANGER (UIN 232890)
ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 40kW
SYSTEM RETURN
DN25 PN6 FLANGE
SYSTEM FLOW
DN25 PN6 FLANGE
147
541
250500500
563
1500
500 500 500
120
586
613
120
450
685
396
541
TOP OF BOILER1389
TOP OF FRAME1418,0
763
300
5.2.4 INSTALLATION DRAWING OF 3 BOILERS ON DN50 FRAME & HEADER KIT WITH
300 kW PLATE HEAT EXCHANGER
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE
ON EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. FRAME (UIN 232857) ONE SUPPLIED PER BOILER.
3. OPTIONAL 300kW PLATE HEAT EXCHANGER (UIN 232891)
ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 60kW/70kW
SYSTEM FLOW
DN25 PN6 FLANGE
SYSTEM RETURN
DN25 PN6 FLANGE
147
583
250500500
563
500 500 500613
TOP OF BOILER1389
TOP OF FRAME1418
396
541
685
2031
120
639
120
450 763
300
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT
THE INSTALLATION.
2. OPTIONAL 150 kW PLATE HEAT EXCHANGER (XB150036)
ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 40 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT
THE INSTALLATION.
2. OPTIONAL 300 kW PLATE HEAT EXCHANGER (XB150037)
ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 60 kW / 70 kW

13
Plate Heat Exchanger Kits
5.2.5 INSTALLATION DRAWING OF 4 BOILERS ON DN50 FRAME & HEADER KIT WITH
300 kW PLATE HEAT EXCHANGER
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE
ON EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. FRAME (UIN 232857) ONE SUPPLIED PER BOILER.
3. OPTIONAL 300kW PLATE HEAT EXCHANGER (UIN 232891)
ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 40kW/60kW/70kW
147
583
250500500500
563
500500500500
120
639
613
TOP OF BOILER1389
TOP OF FRAME1418,0
450
120
541
396
685
SYSTEM RETURN
DN25 PN6 FLANGE
SYSTEM FLOW
DN25 PN6 FLANGE
2532
2000
300
763
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT
THE INSTALLATION.
2. OPTIONAL 300 kW PLATE HEAT EXCHANGER (XB150037)
ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 40 kW / 60 kW / 70 kW
704
(TOP OF BOILER)1506
(TOP OF FRAME)1535
554
643
680
120
586
1057
120
300
450
894
250
123
SYSTEM FLOW
DN25 PN6 FLANGE
SYSTEM RETURN
DN25 PN6 FLANGE
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 150kW PLATE HEAT EXCHANGER
(UIN 232893) ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80kW, 100kW, 120kW
500
5.2.6 INSTALLATION DRAWING OF 1 BOILERS ON DN80 FRAME & HEADER KIT WITH
150 kW PLATE HEAT EXCHANGER
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 150 kW PLATE HEAT EXCHANGER (XB150038) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80 kW / 100 kW / 120 kW

14 Plate Heat Exchanger Kits
704
250500
123
480
20
480
1000
1622
(TOP OF FRAM)1535
(TOP OF BOILER)1506
894
554
643
680
120
639
SYSTEM RETURN
DN50 PN6 FLANGE
SYSTEM FLOW
DN50 PN6 FLANGE
120
450
300
5.2.7 INSTALLATION DRAWING OF 2 BOILERS ON DN80 FRAME & HEADER KIT WITH
300 kW PLATE HEAT EXCHANGER
5.2.8 INSTALLATION DRAWING OF 3 BOILERS ON DN80 FRAME & HEADER KIT WITH
300 kW PLATE HEAT EXCHANGER
704
500
123
480
2122
(TOP OF FRAM)1535
(TOP OF BOILER)1506
894300
554
643
680
120
639
SYSTEM RETURN
DN50 PN6 FLANGE
SYSTEM FLOW
DN50 PN6 FLANGE
120
450
480 480
20 20
500 250
1500
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 300 kW PLATE HEAT EXCHANGER (XB150039) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80 kW / 100 kW / 120 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 300 kW PLATE HEAT EXCHANGER (XB150039) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80 kW / 100 kW

15
Plate Heat Exchanger Kits
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE ON EITHER
THE LHS OR RHS OF THEASSEMBLY TO SUIT THE INSTALLATION.
2. FRAME (UIN 232858) ONE SUPPLIED PER BOILER.
3. OPTIONAL 450kW PLATE HEAT EXCHANGER
(UIN 232895) ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 120kW
704
894
120
300
450
554
643
680
(TOP OF BOILER)1506
(TOP OF FRAME)1535
120
639
1500
2178
480 480 480
20 20
500 500 250
123
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
5.2.9 INSTALLATION DRAWING OF 3 BOILERS ON DN80 FRAME & HEADER KIT WITH
450 kW PLATE HEAT EXCHANGER
5.2.10 INSTALLATION DRAWING OF 4 BOILERS ON DN80 FRAME & HEADER KIT WITH
450kW PLATE HEAT EXCHANGER
704
894
120
300
450
554
643
680
120
639
2000
2678
480 480 480 480
20 20 20
500 500 500 250
123
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. FRAME (UIN 232858) ONE SUPPLIED PER BOILER.
3. OPTIONAL 450kW PLATE HEAT EXCHANGER
(UIN 232895) ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 80kW/100kW
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
(TOP OF BOILER)1506
(TOP OF FRAME)1535
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE EITHER THE
LHS OR RHS OF THE ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 450 kW PLATE HEAT EXCHANGER (XB150040) ONE PER
CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 120 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE EITHER THE
LHS OR RHS OF THE ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 450 kW PLATE HEAT EXCHANGER (XB150040) ONE PER
CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80 kW / 100 kW

16 Plate Heat Exchanger Kits
5.2.11 INSTALLATION DRAWING OF 4 BOILERS ON DN80 FRAME & HEADER KIT WITH
600 kW PLATE HEAT EXCHANGER
5.2.12 INSTALLATION DRAWING OF 5 BOILERS ON DN80 FRAME & HEADER KIT WITH
450 kW PLATE HEAT EXCHANGER
120
639
(TOP OF BOILER)1506
(TOP OF FRAME)1535
554
643
680
120
300
450
2000
2764
500 500 500 250
123
894
704
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. FRAME (UIN 232858) ONE SUPPLIED PER BOILER.
3. OPTIONAL 600kW PLATE HEAT EXCHANGER
(UIN 232896) ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 120kW
480
20
480
20
480
20
480
704
894
554
643
680
120
300
450
(TOP OF BOILER)1506
(TOP OF FRAME)1535
500 500 500 500 250
123
480
20
480
20
480
20
480
20
480
2500
3178
120
639
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 450kW PLATE HEAT EXCHANGER
(UIN 232895) ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE EITHER THE
LHS OR RHS OF THE ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 600 kW PLATE HEAT EXCHANGER (XB150041) ONE PER
CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 120 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE EITHER THE
LHS OR RHS OF THE ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 450 kW PLATE HEAT EXCHANGER (XB150040) ONE PER
CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80 kW

17
Plate Heat Exchanger Kits
(TOP OF BOILER)1506
(TOP OF FRAME)1535
500 500 500 500 500 250
123
480 480 480 480 480 480
20 20 20 20 20
3000
3764
120
639
554
643
680
120
300
450
704
894
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 600kW PLATE HEAT EXCHANGER
(UIN 232896) ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80kW, 100kW
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
5.2.14 INSTALLATION DRAWING OF 6 BOILERS ON DN80 FRAME & HEADER KIT WITH
600 kW PLATE HEAT EXCHANGER
5.2.13 INSTALLATION DRAWING OF 5 BOILERS ON DN80 FRAME & HEADER KIT WITH
600 kW PLATE HEAT EXCHANGER
554
643
680
704
894
120
300
450
(TOP OF BOILER)1506
(TOP OF FRAME)1535
2500
3246
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. FRAME (UIN 232858) ONE SUPPLIED PER BOILER.
3. OPTIONAL 600kW PLATE HEAT EXCHANGER
(UIN 232896) ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 100kW/120kW
639
120
500 500 500 500 250
123
480
20
480
20
480
20
480
20
480
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN BE EITHER THE
LHS OR RHS OF THE ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 600 kW PLATE HEAT EXCHANGER (XB150041) ONE PER
CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 100 kW / 120 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 600 kW PLATE HEAT EXCHANGER (XB150041) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 80 kW / 100 kW

18 Plate Heat Exchanger Kits
5.2.15 INSTALLATION DRAWING OF 2 BOILERS ON DN100 FRAME & HEADER KIT
WITH 300 kW PLATE HEAT EXCHANGER
5.2.16 INSTALLATION DRAWING OF 3 BOILERS ON DN100 FRAME & HEADER KIT
WITH 450 kW PLATE HEAT EXCHANGER
692
776
790
(TOP OF BOILER)1801
(TOP OF FRAME)1830
120
293
450
704
894
1000
1634
120
639
500 250
123
480 480
20
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 300kW PLATE HEAT EXCHANGER
(UIN 236388) ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 150kW
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
692
790
776
(TOP OF BOILER)1801
(TOP OF FRAME)1830
704
894
1500
2190
120
639
500 500 250
123
480 480 480
20 20
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. OPTIONAL 450kW PLATE HEAT EXCHANGER
(UIN 236389) ONE PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 150kW
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
120
293
450
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 450 kW PLATE HEAT EXCHANGER (XB150043) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 150 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 300 kW PLATE HEAT EXCHANGER (XB150042) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 150 kW

19
Plate Heat Exchanger Kits
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. FRAME (UIN 235596) ONE SUPPLIED PER BOILER.
3. OPTIONAL 750kW PLATE HEAT EXCHANGER
(UIN 232897) ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 150Kw
SYSTEM FLOW
DN80 PN6 FLANGE
SYSTEM RETURN
DN80 PN6 FLANGE
120
717
2500
3322
500 500 500 500 250
123
480 480 480 480 480
692
790
776
120
293
450
894
704
(TOP OF BOILER)1801
(TOP OF FRAME)1830
20 20 20 20
(TOP OF BOILER)1801
(TOP OF FRAME)1830
692
776
790
120
293
450
894
704
2000
2779
120
639
480 480 480 480
20 20 20
500 500 500 250
123
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. FRAME (UIN 235596) ONE SUPPLIED PER BOILER.
3. OPTIONAL 600kW PLATE HEAT EXCHANGER
(UIN 232902) ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 150kW
SYSTEM FLOW
DN50 PN6 FLANGE
SYSTEM RETURN
DN50 PN6 FLANGE
5.2.18 INSTALLATION DRAWING OF 5 BOILERS ON DN100 FRAME & HEADER KIT
WITH 750 kW PLATE HEAT EXCHANGER
5.2.17 INSTALLATION DRAWING OF 4 BOILERS ON DN100 FRAME & HEADER KIT
WITH 600 kW PLATE HEAT EXCHANGER
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 600 kW PLATE HEAT EXCHANGER (XB150044) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 150 kW
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 750 kW PLATE HEAT EXCHANGER (XB150045) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 150 kW

20 Plate Heat Exchanger Kits
5.2.19 INSTALLATION DRAWING OF 6 BOILERS ON DN100 FRAME & HEADER KIT
WITH 900 kW PLATE HEAT EXCHANGER
692
790
776
120
293
450
704
894
(TOP OF BOILER)1801
(TOP OF FRAME)1830
500 500 500 500 500 250
123
480 480 480 480 480 480
20 20 20 20 20
3000
3853
120
717
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS
CAN BE ON EITHER THE LHS OR RHS OF THE
ASSEMBLY TO SUIT THE INSTALLATION.
2. FRAME (UIN 235596) ONE SUPPLIED PER BOILER.
3. OPTIONAL 900kW PLATE HEAT EXCHANGER
(UIN 232904) ONE PER CASCADE.
4. ALL DIMENSIONS IN mm
5. COMPATIBLE BOILERS: 150kW
SYSTEM FLOW
DN80 PN6 FLANGE
SYSTEM RETURN
DN80 PN6 FLANGE
NOTES:
1. PLATE HEAT EXCHANGER AND GAS CONNECTIONS CAN
BE EITHER THE LHS OR RHS OF THE ASSEMBLY TO SUIT THE
INSTALLATION.
2. OPTIONAL 900 kW PLATE HEAT EXCHANGER (XB150046) ONE
PER CASCADE.
3. ALL DIMENSIONS IN mm
4. COMPATIBLE BOILERS: 150 kW