DORCHESTER DR-FC 25, Инструкции по установке, пусконаладке и обслуживанию

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Installation
26 Instruction Manual DR-FC
3
is
See
d
in Figure 3.3 .
1. Fit a gas valve
g
in the gas supply pipe.
2. Blow the gas pipe through before use, to be sure it is clean.
3. Close the gas valve.
4. Fit the gas supply pipe to the gas control.
Warning
Check for leaks after fitting.
3.9 Air supply and flue
gas discharge
Warning
The installation should be carried out by an authorised installer, in
compliance with the general and local regulations imposed by gas, water
supply and power supply companies and the fire service. Refer also to
paragraph
’1.3 Regulations and documents’ .
Depending on the approved installation types, there are several alternatives
for connecting the air supply and flue gas discharge. The DR-FC water
heaters are approved for installation types B23, C13, C33, C43, C53 and C63.
The most common installation types are:
•
C13: Concentric wall flue terminal and
• C33: Concentric roof flue terminal .
This manual describes these installation types. If an explanation of other types
of installation is required, please contact Hamworthy.
c
Note
Hamworthy prescribes the use of a roof or wall-mounted terminal,
exclusively of a type approved for the water heater. See paragraph
’3.9.1 Concentric wall flue terminal’ and ’3.9.2 Concentric roof flue terminal’ .
Use of an incorrect roof or wall-mounted terminal can cause the installation
to malfunction.
n Remark
Make sure that the chimney discharges into an area where this is permitted
for this category of water heater.
Table 3.6 shows the maximum length of the chimney configurations. The
following requirements must also be fulfilled:
•
the maximum chimney length is 15 metres.