Worcester 28Si Manuals

Manuals and User Guides for Worcester 28Si. We have 2 Worcester 28Si manuals available for free PDF download: Installation And Servicing Instructions

Worcester 28Si Installation And Servicing Instructions (62 pages)

WALL MOUNTED COMBINATION BOILERS FOR CENTRAL HEATING AND MAINS FED DOMESTIC HOT WATER

Brand: Worcester | Category: Boiler | Size: 5.17 MB

Servicing Instructions
1
Table of Contents
2
Electrical and Gas Supply
2
Installation Regulations
2
Introduction
2
- Controls
  3
- System
  3
- Showers, Bidets, Taps and Mixing Valves
  3
- Safety
  3
Technical Data
4
Siting the Appliance
6
- The Minimum Free Areas Required Are:
  7
- Siting of the Flue Terminal.
  7
Flue Terminal Positions
7
Air Supply
7
- Sealed Primary Water System.
  8
- System Fill
  8
- System Make up
  8
Sealed System
8
Open Vent System
8
Domestic Hot Water
9
Gas Supply
9
Electrical
9
- Wiring Diagram
  10
- Functional Flow Diagram
  11
- Installing the Appliance
  12
- Unpacking
  12
- Site Preparation
  12
- Fixing Holes and Flue Opening
  12
Installation
12
- Relief Valve Drain Connection
  13
- Manifold Assembly
  13
- Air and Flue Duct Preparation
  13
- Install the Boiler
  13
- Measure and Cut the Ducts.
  14
- Standard Flue Assembly
  14
- Extension Duct
  14
- Flue Duct Length - Side
  14
- Fitting the Flue Assembly With/Without Access to the Terminal
  15
- Flue Bends
  15
- Flue Duct Length - Rear
  15
- Flue Turret Fixing
  15
- Vertical Adapter for Horizontal Flues
  16
- Completion of the Installation
  16
- Elbow to Flue Turret Assembly
  16
- Facia Connections Cover
  17
- Programmer Cover
  17
- Programmer Connection
  17
- Mains Voltage External Controls Connections
  17
- Set the System Pressure
  18
- Commissioning the Appliance
  18
- Set the Expansion Vessel Pressure
  18
- Remove the Appliance Cabinet
  18
- Checking the Burner Pressure
  19
- Central Heating
  19
- Balance the System
  19
- Set the Room Thermostat
  19
- Component Access
  20
- Component Cleaning
  20
Handover
20
Inspection and Servicing
20
- Inner Case Components
  21
- Draining the Appliance
  22
- Component Replacement
  22
- Gas Valve
  22
Replacement of Parts
22
- Combustion Chamber Insulation
  23
- Flame Sense Electrode
  23
- Spark Electrode
  23
- Burner
  23
- Pressure Gauge
  24
- Relief Valve
  24
- Combustion Chamber Insulation.
  24
- Pressure Gauge Head
  24
- Flow Switch
  25
- Inlet Water Filter
  25
- Control Board
  25
- Control Board Cover
  25
- Transformer
  26
- Clock/Programmer
  26
- Fan
  26
- Air Flow Detector
  26
- Auto Air Vent
  27
- Primary Heat Exchanger
  27
- Expansion Vessel
  27
- Pump
  27
Short Parts List
28
- Central Heating Function
  30
- Domestic Hot Water Function
  30
Operational Flow Diagram
30
- Overrun Function
  31
- Autofrostat Function
  31
- Light Situation During Fault
  32
Fault Finding
32
- To Fit the Timeswitch
  41
- To Set the Timeswitch
  41
- Flue System
  42
- Installation Instructions
  42
- Flue Terminal Position
  43
- Vertical Balanced Flue Options
  43
- Terminal Height
  43
- Flue Restriction Rings
  44
- Nominal Flue Height
  44
- Terminal Assembly
  44
- Flue with Offset Using Two Flue Bends
  44
- Preparation and General Notes
  45
- Flue Height and Offsets
  45
- Installation of Boiler
  45
- Flue Adaptor
  45
- Positioning the Flue System
  46
- Marking out the Flue Assembly Position
  46
- Measurement of Ducts
  47
- Air and Flue Duct Length
  47
- Vertical Flue System
  47
- Air and Flue Duct Lengths
  48
- Vertical Flue System Offset with Vertical Adaptor
  48
- Vertical Flue System Offset Without Vertical Adaptor
  49
- Position of the Fire Stop Spacer Assembly
  50
- Position of the Flue Duct Support Bracket
  50
- Cut Ducts
  50
- Installation of Flue
  50
- Duct Assembly
  51
- Fitting Flue and Air Ducts Onto an Elbow at the Appliance
  51
- Prepare the Roof
  51
- Fix the Flue System Assembly to the Appliance
  51
- Fix the Flue Terminal Assembly
  52
- Seal the Terminal Assembly to the Roof
  52
- Battery Back-Up
  55
- To Fit the Programmer
  55
- Power up Condition
  55
- Programmer
  55
- To Replace the Programmer
  56
- Programmer Operating Instructions
  58
- To Set the Clock
  58
- To Set the Programme
  58
- To Test the Programme
  59
- Operational Notes
  59

Worcester 28Si Installation And Servicing Instructions (40 pages)

WALL MOUNTED COMBINATION BOILERS FOR CENTRAL HEATING AND MAINS FED DOMESTIC HOT WATER

Brand: Worcester | Category: Boiler | Size: 1.11 MB

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Worcester 28Si Installation And Servicing Instructions (62 pages)

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