Hamworthy UF150-1, Инструкция по установке, вводу в эксплуатацию и эксплуатации

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HAMWORTHY HEATING LTD
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UPTON FLOOR STANDING SERIES 500001340/C
E1.1 Water Circulation System
The Upton boiler has a low water content and the requirements of minimum water flow are given in the above
table. Recommendations for the water circulation system are given in BS 6644 and CP 342.
The following details are of particular importance for the correct installation of the water circulation system:
1) In a combined central heating and hot water system the hot water storage vessel must be of the indirect
cylinder or calorifier type. The hot water storage vessel should be insulated, preferably with not less than
75mm (3”) thick mineral fibre, or its thermal equivalent.
2) Circulating pipe work not forming part of the useful heating surface should be insulated to help prevent heat
loss and possible freezing, particularly where pipes are run through roof spaces and ventilated cavities.
Cisterns situated in areas which may be exposed to freezing conditions should also be insulated.
Furthermore, insulation exposed to the weather should be rendered waterproof.
3) Drain valves must be located in accessible positions which permit the draining of the whole system, including
the boiler and hot water storage vessel.
4) Each boiler module has flow and return connections as detailed in the table above. Multiple boilers should be
connected by flow and return headers. Hamworthy strongly recommend that boilers are connected in a
primary circuit configuration utilising a low loss header arrangement to enable secondary circuits to be
connected to the header. Figure E1.1.1 on the following page show typical layouts.
5) Ideally, individual valves should be fitted to each module to enable isolation from the system, however, the
arrangement must comply with the requirements of BS 6644.
E1.2 Pressure Relief Valve (Safety Valve)
The most important single safety device fitted to a boiler is its safety valve. Each boiler module is provided with a
G¾” connection for the fitting of a safety valve (not supplied). BS 6644 provides comprehensive information for
the selection and location of safety valves and attention is drawn to the higher capacity requirements of safety
valves for pressurised hot water systems. For boilers in excess of 300kW nominal heat output the Navistem
controls can be configured to shut off the boiler before the safety valve operates.
E1.3 Altitude Gauge (Water Pressure Gauge)
The system pressure can be accessed from the HMI control panel.
E1.4 Water flow protection.
Each boiler is provided with an integral flow switch to shut off the boiler if there is insufficient through the heat exchange.
E1.5 Thermometer
A thermometer complete with pocket should be fitted in the pipe work to indicate water flow temperature. See
Figure E1.1.1 for typical position.
E1.6 Drain Valves
Each boiler has a 15mm NB drain valve fitted in front of the heat exchanger, for draining the boiler only. The
heating system in total should have drain valves as recommended by BS 6644. See Figures E1.3.1 to E1.3.7 for
typical position.
E1.7 Circulating Pump
One or more circulating pumps will be required to circulate water around the boilers and heating system. The
pump should be sited to facilitate servicing. It is important that when Upton
boilers are used to replace boilers on
an existing system, the pumps should be checked for performance against the new boiler waterside pressure loss
to ensure that the minimum flow rate can be obtained. It is also important that the existing system be flushed
through twice to remove any loose matter which may have accumulated. If in any doubt regarding the cleanliness
of the system, a coarse filter should be fitted in the return pipework to the boilers.
If boilers are run off time clock control a pump overrun (not Hamworthy Heating Ltd supply) should be fitted which
must run for a minimum of 5 minutes on shutdown of the last boiler. This must be interlocked to the Navistem
B3000 boiler control for frost protection.