In addition, due account must be taken to the following Codes Of Practice:
BS 6891
:
Low Pressure Installation Pipes
BS 6798
:
Installation of Gas Fired Hot Water Boilers of
Rated Input Not Exceeding 70kW
BS 5449
:
Installation Pumped Central Heating
BS 5546
:
Installation of Gas Hot Water Supplies for
Domestic Purposes (2nd family gases)
BS 5440.1
:
Flues (for gas appliances of rated input not
exceeding 70kW)
BS 5440.2
:
Air Supply (for gas appliances of rated input not
exceeding 70kW)
BS 5482.1
:
Domestic Propane and Butane Burning
Installations
BS 7074.1
:
Expansion Vessels
BS 7593
:
Treatment of Water in Hot Water Central Heating
Systems
BS 7671
:
Requirements for Electrical Installations. IEE
Wiring Regulations 16th Edition.
BSEN 12828:2003
:
Heating Systems in Buildings: Design for water
based heating systems
BSEN 12831:2003
:
Heating Systems in Buildings: Method for
calculation of design heat load
BSEN 14336:2004
:
Heating Systems in Buildings: Installation and
commissioning of water based heating systems
For Timber Framed Buildings, British Gas Publications DM2. Also British Gas
Publications 'Guidance Notes For The Installation Of Domestic Gas Condensing
Boilers' and 'Specification For Domestic Wet Central Heating Systems'.
1.4
PHYSICAL DATA - C45 and C55
WD536
Chapter 1 : General Instruction
The Keston C45, C40P, C55 & C55P
Installation & Servicing Instructions
Page : 3
Cabinet Height
mm
720
Cabinet Width
mm
520
Cabinet Depth
mm
320
Top Clearance
mm
150
Side Clearance
mm
25
Base Clearance
mm
150
Front Clearance (for servicing)
mm
305
Weight - Full
kg / (lbs)
70.5/(157.8)
Weight - Empty
kg / (lbs)
61.5/(135.8)
Flow and Return Connection
Rp 1" F
Gas Connection
Rp 0.75" F
Condensate Connection
mm
22mm plastic overflow
IP Rating
IP20 (IPX0)
Flue and Air Intake Material 50mm muPVC (BS5255 and/or BSEN1566-1 and BSEN1329)
Flue Pipe Size (nominal bore)
mm / (in)
50 / (2)
Air Intake Pipe Size (nominal bore)
mm / (in)
50 / (2)
Max. Air Intake Length
m
29
Max. Flue Outlet Length
m
15
Max. Total Flue Outlet and Air Intake Length
m
30
Flue and Air Intake Material
75mm Keston Composite
Flue Pipe Size (nominal bore)
mm / (in)
75 / (3)
Air Intake Pipe Size (nominal bore)
mm / (in)
75 / (3)
Max. Air Intake Length
m
87
Max. Flue Outlet Length
m
45
Max. Total Flue Outlet and Air Intake Length
m
90