Term
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Definition
| Electronic COMBUSTION Gas Analyser |
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Term
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Definition
Can measure O2 and CO
Can calculate CO2
Can measure ambient temp
And Flue Gas Temp |
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Term
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Definition
Check O2 level-s/b 20.9%+- 0/1%
(20.8-21% OK)
CO level s/b ZERO |
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Term
| Difference between GROSS and NET |
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Definition
GROSS:Is based on Max c.v the gas will produce.
NET: Is based on GROSS-The latent heat of condensation for natural gas |
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Term
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Definition
1.Bent probe with holes used for flueless gas fires.
2.Straight probe with holes used for testing cooker grills |
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Term
| R.S.A without an internal test point |
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Definition
| Position the Analyser,in the flue outlet duct outside |
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Term
ECGA
Open flued appliances |
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Definition
Position the probe up through the D.D.
In about 200mm |
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Term
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Definition
| For commissioning of c.h boilers and servicing if A band condensing boilers |
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Term
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Definition
ECGA
Moving away from electrolytic sensors to IR sensors.
(Reduces maintenance and cost of calibration ) |
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Term
ECGA.
Testing of other fuels |
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Definition
Change the fuel when testing combustion of other fuels
Or CO2 readings will be incorrect. |
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Term
Taper Plug Valve
Construction |
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Definition
Consists of a tapered brass or aluminium
barrel. |
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Term
Taper Plug Valve
Construction 2 |
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Definition
| 2.Barrel is inserted into the body of the valve.Held in place by a spring or nut. |
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Term
Taper Plug Valve
Operation |
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Definition
| Lubricated by graphite grease,this ensures ease of operation and remains gas tight |
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Term
Taper Plug Valve
operation 2 |
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Definition
Valve is operated manually by means of handle/knob.
Commonly used to isolate appliances or installations. |
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Term
| Open Flued Appliance COMPARTMENT Venting to OUTSIDE |
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Definition
High Level 5cm2/kW Low Level 10cm2/kW
In Room-NIL [image] |
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Term
Open Flued Appliance
COMPARTMENT
Venting to ROOM |
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Definition
High Level 10cm2/kW
Low Level 20cm2/kW
Room Vent-Max Heat Input(net)-7kW x 5cm2[image] |
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Term
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Definition
| Max Heat Input(Net)-7kW x 5cm2 |
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Term
Room Sealed Appliance
COMPARTMENT
Venting to OUTSIDE |
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Definition
High Level-5cm2/kW
Low Level -5cm2/kW
In Room-NIL[image] |
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Term
Room Sealed Appliance
COMPARTMENT
Venting to ROOM |
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Definition
High Level 10cm2/kW
Low Level 10cm2/kW
In Room-NIL[image] |
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Term
Room Sealed Appliance
Room |
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Definition
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Term
Ventilation
NET Heat Input Value |
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Definition
| Divide the gross value by 1.1 |
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Term
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Definition
| Air that can leak into buildings through windows,doors,floorboards walls etc |
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Term
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Definition
| No allowance can be made for adventitious ventilation |
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Term
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Definition
Specially designed to prevent spread of fire.
Normally an insert with metal framework,open latticework of heat sensitive material |
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Term
| Design width of Vent grill |
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Definition
Permits entry of a ball of 5mm diameter
but prevents entry of a ball of 10mm diameter |
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Term
| Installation of a vent in internal wall or door |
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Definition
No greater than
450mm from floor level |
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Term
| Fluess appliance ventilation requirements |
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Definition
Consult M.Is
or table in BS5440-2
Any air vent required must be direct to outside |
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Term
| Ventilation for flueless space heater in a ROOM |
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Definition
1.Convert kW to Watts by x the net heat input by 1000
2.Then DIVIDE by the volume of the room
Answer must be 45W/m3 or less |
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Term
Gas Fired Appliances
Minimum Flue Diameter is |
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Definition
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