4.1 INTRODUCTION
1. The Grant Vortex Boilerhouse Combi boiler models are supplied
in two boxes:
- one containing the boiler and
-the other the burner, the condensate trap.
2. Carefully remove the packaging from the boiler and unpack the
box containing the other elements.
4.2 LOCATION OF THE BOILER
The boiler must rest on a firm, level and non-combustible ground
capable of supporting the weight of the boiler when it is in water.
Refer to chapter 2.1 to check the weights of the boiler to be
installed.
It does not require a special hearth as the temperature of
the boiler base is less than 50°C.
Suffi cient clearance must be allowed at the front of the boiler to
remove the burner and the smoke baffles for maintenance.
4.3 COMPLIANCE WITH REGULATIONS
Installation of a Grant Vortex boiler must be in accordance with the
following recommendations:
• Building Regulations, national and european and the Building
Standards issued by the Department of the Environment
and any local Byelaws which you must check with the local
authority for the area.
• Model and local Water Undertaking Byelaws.
• Applicable Control of Pollution Regulations.
• National Building Regulations and any local Byelaws.
• Model Byelaws and the Water Supply Regulations.
• The following OFTEC requirements:
• OFS T100 Polythene oil storage tanks for distillate fuels.
• OFS T200 Fuel oil storage tanks and tank bunds for use
with distillate fuels, lubrication oils and waste oils.
Further information may be obtained from the OFTEC
Technical Book 3 (Installation requirements for oil
storage tanks) and OFTEC Technical Book 4 (Installation
requirements for oil fi red boilers).
The installation should also be in accordance with the latest edition
of the following National Standard Codes of Practice (and any
relevant amendments):
• BS 5410-1: 2019 (Code of practice for liquid fuel fi ring.
Installations for space heating and hot water supply purposes
for domestic buildings)
• This standard covers domestic installations up to 70kW.
• BS 5410-2: 2018 (Code of practice for liquid fuel fi ring. Non-
domestic installations)
• This standard should be followed with regard to
installations with an output capacity in excess of 70kW.
• Where the combined outputs of multiple appliances
located together at a domestic dwelling exceed 70kW
then then a dedicated plant room as specifi ed in BS 5410-
2 is recommended.
• BS EN 12828 (Heating systems in buildings. Design for water-
based heating systems)
• BS EN 12831-1 (Energy performance of buildings. Method for
calculation of the design heat load)
• BS EN 14336 (Heating systems in buildings. Installation and
commissioning of water based heating systems)
• BS 7593 (Code of Practice for treatment of water in domestic
hot water central heating systems)
• BS 7671 (Requirements for Electrical installations, IET Wiring
Regulations)
• BS 7291 (Thermoplastics pipe and fi tting systems for hot and
cold water for domestic purposes and heating installations in
buildings. General requirements)
• BS 7074-1 (Application, selection and installation of expansion
vessels and ancillary equipment for sealed water systems.
Code of practice for domestic heating and hot water supply)
• BS 2869 (Fuel oils for agricultural, domestic and industrial
engines and boilers. Specifi cation)
4.4 HEATING SYSTEM DESIGN
CONSIDERATIONS
To achieve the maximum effi ciency possible from the Grant Vortex
boiler, the heating system should be designed to the following
parameters:
RADIATORS:
• Flow temperature 70°C
• Return temperature 50°C
• Differential 20°C
Size radiators with a mean water temperature of 60°C.
Design system controls with programmable room thermostats or
use weather compensating controls to maintain return temperatures
below 55°C.
4 INSTALLATION INFORMATION
Boiler Installation Information
A removable section of worktop above
the boiler is required to provide access for
servicing.
NOTE
Failure to install and commission appliances
correctly may invalidate the boiler guarantee.
NOTE
WARNING
BS5410-1: 2019 requires that appliances
located in a building or structure or within
a restricted area externally should have a
CO detector conforming to BS EN 50291-1
installed in the same room/space.
WARNING
Before starting any work on the boiler or fuel
supply, please read the Health and Safety
information given in Section 15.
The boiler should not be allowed to operate
with return temperatures of less than 40°C
when the system is up to temperature.
NOTE
The use of a pipe thermostat is recommended to control the return
temperature when using weather compensating controls.
UNDERFLOOR:
• Flow temperature 50°C
• Return temperature 40°C
• Differential 10°C
In underfl oor systems, it is essential that the return temperature must
be maintained at or above 40°C to prevent internal corrosion of
the boiler water jacket.
Refer to Section 2.5 for the size and type of the connections and
Section 5 for the position of the connections.
Page 16
To Next Page
Loading...
