Ideal Boilers Buccaneer GTE 5, Руководство по установке и обслуживанию

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31 Buccaneer GTE -
Installation & Servicing
INSTALLATION
HYDRAULIC CONNECTIONS
Installation must be carried out following the regulations in
force, trade practices and the recommendations contained in
this leaflet.
WARNING . There must be no obstructions, complete or partial,
between the boiler and the safety valves.
WARNING . Heating installations must be designed and
assembled so that central heating water and any products
introduced into it cannot find their way into the drinking water
system. A removable connection must be installed for filling the
heating circuit according to current regulations.
• Before making the hydraulic connections for the central
heating circuit, it is essential to flush the water system to
eliminate any dirt which may damage certain parts (safety
valve, pumps, flap valves . . .)
• Be careful to isolate hydraulically the primary and secondary
circuits using stop valves. This will facilitate matters during
maintenance.
Inclusion of these valves means that maintenance of the unit
and its parts can be carried out without having to empty it. They
mean that the tank can be carried out without having to empty it.
They also mean that the tank can be isolated whilst a watertight
pressure test is carried out if the test pressure is above the
pressure admitted by the tank.
Connection of the Domestic Hot Water Circuit
The domestic hot water units can operate under a maximum
service pressure of 10bar. Generally, they operate at 7 bar.
• Before connecting the domestic hot water circuit, the
pipework must be flushed to wash out any metal or other dirt
which could damage certain parts (safety units, pump,
valves . . .).
• The connection between the safety valve and the unit must
not contain any restrictive parts. Also, the flow pipe for the
safety valve must not be obstructed. If the supply pressure
exceeds 5.5bar, a pressure reducer must be included
"upstream" of the tank. It is advisable to site the pressure
reducer "downflow" of the water meter so as to have the
same pressure in all the pipes.
• Include a drain valve in the boiler as well as a "syphon
funnel" for the safety unit.
• Connection to the cold water supply must be carried out
according to the drawing in Frame 53. Components must
conform to the standards and regulations in force. A stop
valve is installed into the cold water supply.
WARNING . If the distribution pipework is in copper, a sleeve in
steel, cast iron or insulating material must be placed between
the hot water outlet of the unit and this pipework so as to avoid
any corrosion at the level of the branch pipe.
Notes.
- The safety unit and its connection to the tank must be at
least of the same diameter as the tanks domestic cold water
supply pipework (minimum
3
/
4
").
- The safety unit's outlet pipe must have sufficient, continuous
slope and its section must be at least equal to that of the
orifice for the safety unit outlet (so as to avoid slowing down
the water flow when there is an excess of pressure).
- The level of the safety unit must be below that of the cold
water inlet so it can be drained. If this is not the case, install
a draining pipe at the lowest point of the tank (see drawing
in Frame 53).
- To ensure hot water as soon as the taps are opened, a
circulation loop between the mains supply and the
recirculation pipes of the unit can be installed.
Important Recommendations for Connecting the Boiler to the
Heating Circuit and the Drinking Water Supply
The installation shall be made in keeping with applicable
regulations and codes of practice and the recommendations
contained in these instructions.
The expansion vessel shall be connected to the boiler without
any valve or stop valve between the boiler and the expansion
vessel.
The heating system shall be designed and installed in a way
as to prevent the water from the heating circuit and any
substances added to it from flowing back into the drinking
water circuit located before it. The installation shall not be
directly connected to the drinking water system.
As a general rule, a check valve shall be fitted on the cold water
supply pipe.
VERY IMPORTANT. Under safety rules, a sealed safety valve
calibrated to 7bar shall be fitted on the cold water intake pipe of
the hot water tank. We recommend membrane type hydraulic
safety devices with the NF mark.
During normal valve operation some drops of water are lost
each time the water is heated. This apparent leak is not only
normal, but is actually a sign that the valve is operating
correctly.
The safety valve shall always be placed on the cold water
supply pipe and no valve or tap shall be fitted between the
safety valve and the tank.
In order to ensure the continuous circulation of hot water in the
installation and be able to draw hot water as soon as a tap is
opened, a circulation loop may be installed between the
drawing points and the tank recirculation tube. A non return
valve shall be fitted on this loop.
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