41
3.2.2 Service Access
Clearance should be provided above and in front of the appliance to allow for routine servicing.
The rear of the appliance casing and any one side panel may be positioned beside a wall or
boundary. At least 600mm is required at the front and accessible side of the appliance, although
maximising access is recommended. (Figure 59)
Access for flue cleaning should be considered prior to installation. The main point of access to
the flue is via the flue draught stabiliser spigot on the flue adapter of the appliance. It is
therefore advisable to keep the left hand side of the appliance accessible.
Headroom of at least 1000mm is recommended above the height of the appliance to aid
service, and refilling the pellet hopper.
Please refer to local current Building Regulations for permissible distances from combustible
surfaces. If the appliance is intended for internal installation please refer to current local Building
Regulations for ventilation sizes to ensure sufficient combustion air at maximum output. It may
be necessary to filter combustion air (See Table 1) as it enters the room where the appliance is
located if there is a possibility of high levels of dust or particulates. Combustible materials
including pellets should not be stored in close proximity of the appliance.
3.2.3 Heating System
The heating system should be installed to current HVAC codes of practice. Before installing the
appliance the new or existing system must be thoroughly flushed to clear all sludge or other
foreign matter such as solder, steel wool and copper filings. The system must be cleansed,
neutralised and protected from corrosion in accordance with BS EN 12828, BS EN 12831, BS
EN 14336 and BS7593 using suitable cleansing agent(s) and inhibitor(s) and carried out in
accordance with the cleanser/inhibitor manufacturers’ instructions. The system must be dosed
to the concentrations specified by the inhibitor manufacturer. Inhibitor concentrations must be
monitored and maintained on an ongoing basis. Failure of components such as, but not limited
to, pumps, auto air vents, pressure relief valves and motorised valves due to corrosion within
the system will not be covered by warranty.
Figure 59: Boiler Location and Accessibility
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