Domestic Gas Fitting Handbook Extract - Controls
Controls - OVEN THERMOSTAT AND FLAME FAILURE VALVE INTERACTION
This is an extract from our Domestic Gas Fitting Handbook.
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Domestic Gas Fitting Handbook - Location of Flues near Entry Points
Location of Flues near Entry Points
This is an exttrcat from our Domestic Gas Fitting Handbook.
No possible entry points are permitted in the shaded areas other than doors into the propert... more >>
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Domestic Gas Fitting Handbook Extract - Indirect Fired Air Heaters
Indirect Fired Air Heaters
This is an extract from our Domestic Gas Fitting Handbook.
Basic Operating Principle
In its simplest form, when heat is called for, the burner will light, firing direct... more >>
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Domestic Gas Fitting Handbook - Gas Hotplates
Gas Hotplates - Siting and Clearances Requirements
This is an extract from our Domestic Gas Fitting Handbook.
Following feedback from kitchen designers and installers, BS6172: 2004 was amended ... more >>
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Commercial Industrial Gas Handbook Extract - Strength Testing, Tightness Testing and Purging
Strength Testing, Tightness Testing and Purging
This is an extract from our Commercial/Industrial Gas Handbook.
IGE/UP/1A Edition 2
Strength Testing, tightness testing and direct purging of small... more >>
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Commercial Industrial Gas Handbook Extract - Boosters, Compressors and Pre-mix Machines
TYPICAL INSTALLATION LAYOUT OF COMPONENTS FOR A COMPRESSOR TYPE PRE-MIX MACHINE
This is an extract from our Commercial/Industrial Gas Handbook.
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Commercial Industrial Gas Handbook Extract - Flues
CLASSIFICATION OF GAS APPLIANCES ACCORDING TO FLUE TYPES
This is an extract from our Commercial/Industrial Gas Handbook.
FAN DILUTION SYSTEM - AIR SUPPLY DIRECT FROM OUTSIDE
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Commercial Industrial Gas Handbook Extract - Hot Water Boilers
EXAMPLES OF INDUSTRIAL/COMMERCIAL BOILERS
This is an extract from our Commercial/Industrial Gas Handbook.
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Combination Boiler Handbook Extract - Basic Combination Boiler Operation
Basic Combination Boiler Operation
This is an extract from our Combination Boiler Handbook.
Hot Water Mode
Combination boilers work on the principle of hot water priority whereby the demand at... more >>
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Combination Boiler Handbook Extract - Diaphragm Pass Diverter Valve
Diaphragm Pass Diverter Valve
This is an extract from our Combination Boiler Handbook.
The Diaphragm Pass Diverter Valve is found on types 1,5 & some type 9
Hot Water Mode
Central Heating ... more >>
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Combination Boiler Handbook Extract - Remote Venturi Diverter Valve
Remote Venturi Diverter Valve
This is an extract from our Combination Boiler Handbook.
Remote Venturi Diverter Valve - Types 2 & 9
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Combination Boiler Handbook Extract - Testing Components and Controls - Switches
Testing Components and Controls - Switches
This is an extract from our Combination Boiler Handbook.
A typical air pressure operated micro switch is shown right. To help explain the concept of Norm... more >>
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Combination Boiler Handbook Extract - Static Primary Water Switch (pressure)
Static Primary Water Switch (pressure)
This is an extract from our Combination Boiler Handbook.
Primary water exerts pressure underneath the diaphragm to operate a switch. This informs the... more >>
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