Installation Regulations - Benchmark ZWB 7-29 CC1 Installation And Servicing

Installation regulations

Condensate analysis, mg/l
Ammonium 1.2 Nickel
≤ 0.01 Mercury
Lead
≤ 0.001 Sulphate
Cadmium
≤ 0.005 Zinc
Chromium
Halogenated
≤ 0.002
hydrocarbons
Hydrocarbons 0.015 Vanadium
Copper 0.028 pH-value
Table 3
Flue system
HORIZONTAL 100 mm – Standard
Overall Diameter of Duct
Flue Terminal / Duct
Assembly Length
Extension Duct Length
Table 4
ALTERNATIVE HORIZONTAL 125 mm FLUE
SYSTEM
Overall Diameter of Duct
Flue Terminal / Duct Assembly
Table 5
VERTICAL 125 mm FLUE SYSTEM
Overall Diameter of Duct
Flue Terminal / Duct Assembly
Table 6
Elbow - 90 ° Equivalent length 2 m
Bend - 45 ° Equivalent length 1m
Gas supply
Total length of gas supply pipe
(metres)
3 6
3
Gas discharge rate (m /h)
8.7 5.8
18.0 12.0
Table 7
10
0.15
≤ 0.0001
≤ 0.015
≤ 0.01
Tin
≤ 0.001
mm 100
mm 600 Max.
4 m
mm 1000
mm 125 Max.
13 m
(inclu-
mm 1030
ding
turret)
mm 125
Max.
15 m
mm 1360
Pipe diameter
(mm)
9
4.6 22
9.4 28
Domestic water performance
Domestic
Water Flow
Rate l/min
1
Maximum Mains pressure
Minimum Mains pressure
4.8
Table 8
2 Installation regulations
Gas Safety (Installation & Use) Regulations 1998: All
gas appliances must be installed by a competent per-
son. Failure to install correctly could lead to prosecu-
tion.
The manufacturers notes must not be taken, in any way,
as overriding statutory obligations.
The appliance must be installed in accordance with the
current IEE Wiring Regulations, local Building Regula-
tions, Building Standards (Scotland) (Consolidation),
bye-laws of the local Water Company, Health and
Safety Document 635 (Electricity at Work Regulations
1989) and any other local requirements.
Product Liability regulations indicate that, in certain cir-
cumstances, the installer can be held responsible, not
only for mistakes on his part but also for damage result-
ing from the use of faulty materials. We advise the
installer to avoid any risk by using only quality approved
branded fittings.
The relevant British Standards should be followed i.e.
• BS 6798: Specification for the installation of gas
fired hot water boilers of rated input not exceeding
60kW
• BS 5449: Central Heating for Domestic Premises
• BS 5546: Installation of gas hot water supplies for
domestic purposes
• BS 5440:1: Flues and ventilation for gas appliances
of rated input not exceeding 70 kW (net): Flues
• BS 5440:2: Flues and ventilation for gas appliances
of rated input not exceeding 70 kW (net): Air
Supply
• BS 6891: Installation of low pressure gas pipework
installations up to 28mm (R1).
• BS 7074:1: Code of practice for domestic heating
and hot water supply
• BS 7671: Requirements for Electrical Installation.
These instructions must be followed.
Temperature
Rise 30 °C
Temperature
Rise 35 °C
Temperature
Rise 40 °C
bar
bar
6 720 610 599 GB (03.02)
14.2
12.1
10.6
10.0
0.2