The Biasi Pro-Electric Combi Boiler Fittings Pack (Ei1124503) is the optional installer fittings pack designed for Biasi Pro-Electric combi boilers (single phase 12kW and 14kW, three phase 25kW). It gathers the brass valves, copper tails and unions used to make the flow and return connections between the boiler and your pipework, so the boiler can be isolated for servicing.
Biasi's own installation literature shows full-bore isolation valves and an automatic bypass valve (ABV) as part of the recommended system schematic, and its plumber's checklist asks whether an ABV has been fitted. This pack is sold separately from the boiler, so you can add it to your order only when you need it.
Ei1124503
Biasi Part Code
Combi Boiler
Designed For
Brass + Copper
Valves and Tails
Full-Bore
Isolation Valves
ABV
Bypass Valve Type
Optional
Sold Separately
Optional Item - Sold Separately
This fittings pack is an optional add-on for the Biasi Pro-Electric combi boiler and is not supplied inside the boiler carton. Order it alongside the boiler if you do not already have suitable isolation valves and a bypass.
Choose the Right Pack - Ei1124503 Is for Combi Boilers
Biasi supply a separate pack for each boiler type. Ei1124503 is for the combi boiler. The Ei1124501 System Boiler Fittings Pack is for the system boiler. Check you are ordering the pack that matches your boiler.
About the Product Photo
The photograph shows a typical Biasi fittings pack as an illustration: brass isolation valves with coloured quarter-turn handles, angled brass valve bodies, copper pipe tails and bends, and loose union nuts and sealing washers. Exact pieces and quantities may differ slightly, so check the boxed contents on delivery.
Full-Bore Isolation Valves
Biasi's schematic specifies full-bore valves so the boiler can be isolated for servicing without draining the whole system.
Automatic Bypass Valve
Includes provision for the automatic bypass valve (ABV) that the Biasi plumber's checklist asks the installer to confirm has been fitted.
Brass Valves and Unions
Brass bodies with union nuts make the connection to the boiler's male threads and allow the boiler to be removed cleanly.
Copper Tails and Bends
Pre-formed copper tails and an elbow bend help route the pipework away from the boiler connections neatly.
Sealing Washers Included
Fibre-type sealing washers are shown in the pack for the union joints, so you are not hunting for washers on the day.
Matched to Your Boiler
Made by Biasi for the Pro-Electric combi boiler, so the pack is designed around that model's connections.
How It Fits the Combi Boiler System
A combi boiler has both a heating circuit and a mains hot water circuit, so the datasheet schematic shows full-bore valves on the mains water supply as well as the heating connections, with an automatic bypass valve on the heating circuit.
Technical Specification
Identity
Manufacturer
Biasi
Biasi Part Code
Ei1124503
Product
Pro-Electric Combi Boiler Fittings Pack
Supplied
Separately from the boiler, as an optional item
Application
Designed For
Biasi Pro-Electric combi boilers
Typical Contents
Brass isolation valves, brass valve bodies, copper tails and bend, union nuts, sealing washers
Bypass
Automatic bypass valve (ABV) shown in Biasi system schematic
Boiler Connections
¾" heating and ½" hot water male connections
Compatibility
Boiler Warranty
3 years, subject to registration within 45 days and annual service
Pipework Standards
BS EN 12828, BS EN 14336
Boiler Connection Sizes
The Biasi combi datasheet lists ¾" male heating connections, ½" male hot water connections and a 15mm PRV connection.
Warranty Requirement - Do Not Skip the Fittings
Biasi's Pro-Electric installation manual asks the installer to confirm on the plumber's checklist that an automatic bypass valve has been fitted and that a magnetic filter has been fitted to the return. The manual states that failing to fit the magnetic filter will affect your warranty. Biasi state they are not responsible for failures where the installation terms are not met.
Frequently Asked Questions
Which boilers is the Ei1124503 pack for?
It is designed for Biasi Pro-Electric combi boilers (single phase 12kW and 14kW, three phase 25kW). For the system boiler, choose the Ei1124501 System Boiler Fittings Pack instead.
Is the fittings pack included with the boiler?
No. It is an optional item sold separately, so add it to your order if you need it.
Does the pack include an automatic bypass valve?
Biasi's installation literature shows an automatic bypass valve as part of the recommended schematic and the plumber's checklist asks whether one has been fitted. Check the boxed contents on delivery to confirm the exact pieces supplied.
Do I still need a magnetic filter?
Yes. Biasi's manual states that failing to fit a magnetic filter on the return will affect your warranty. The fittings pack is separate from the filter.
Does using the pack affect the boiler warranty?
The 3-year warranty depends on correct installation, a Part P certificate, registration within 45 days and an annual service. Fitting the isolation valves and bypass shown in Biasi's schematic supports a compliant installation.
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
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1 Wall
2 Walls
3 Walls
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Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
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