Boiler Location And Clearances; Installation And Servicing Clearances; Compartments; Bathrooms - Bosch Worcester GB162-50 V2 Installation, Commissioning And Servicing Instructions

Pre-Installation
3.7

Boiler location and clearances

3.7.1

Installation and servicing clearances

25
600
Fig. 21 Clearances [mm]
3.7.2

Compartments

Follow the requirements of BS6798 and BS5440 Part 2 and note:
• Minimum clearances must be maintained.
• If fitting the appliance into an airing cupboard use a non-combustible
material to separate the appliance from the airing space. The
material can be perforated up to a maximum hole size of 13mm.
• An access door is required to install, service and maintain the
appliance and any ancillary equipment.
3.7.3

Bathrooms

If the boiler is fitted in bathrooms, additional RCD (Residual Current
Device) protection may be required.
Consult the latest version of BS7671 (IEE wiring regulations).
16
25
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3.8

Flue options

CAUTION: in domestic installations
▶ Where a flue system is not going to be accessible,
provision must be made for service and inspection.
▶ Voids containing concealed flues must have at least
one inspection hatch no less than 300mm square.
▶ Flue joints within the void must not be more than
1.5 metres from the edge of the inspection hatch.
▶ Inspection hatches should be located at changes of
direction.
▶ If this is not possible, bends should be viewable from
both directions.
Groups of appliances with net input in excess of 333kW
must comply with the Clean Air Act by application to the
Local Building control department for flue termination
approval. Horizontal terminations above 333kW net
input are not permitted ( IGE/UP/10 latest edition for
full guidance.)
Horizontal terminations above 70kW net input must
comply with the risk assessment appendix 9 of IGE/UP/
10 as well as the general requirements of IGE/UP/10.
3.8.1

Air supply and flue gas exhaust in a room sealed installation

A ventilation cover is integrated into the boilers. This cover houses a
number of components, such as the burner and the heat exchanger.
Since this ventilation cover is part of the air supply system, it is vital that
it is always installed correctly.
To ensure optimal operation, the appliances should be connected to a
Worcester horizontal or vertical flue terminal. These terminals have been
developed specifically for Worcester condensing gas boilers and have
been comprehensively tested for trouble free operation when correctly
installed. These boilers are also compatible with third party flues if
required.
Standard horizontal flue pack ( fig. 22) for 50-V2 and 65-V2:
• 1: Flue turret 80/125;
• 2: Horizontal flue terminal 80/125;
• 3: Flue finishing kit.
Standard horizontal flue pack ( fig. 22) for 85-V2 and 100-V2:
• 1: Flue turret 100/150;
• 2: Horizontal flue terminal 100/150;
• 3: Flue finishing kit.
Fig. 22 Standard horizontal flue pack
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