Potterton Derwent Compact Plus Installation, Operation & Maintenance Manual page 7

POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
DERWENT COMPACT PLUS – CONDENSING
BS 5440: 1990: Part 1 – Specification for Installation
of Flues
BS 5440: 2000: Part 2 – Specification for Installation
of Ventilation for Gas Appliances
BS 6644: 1991 – Installation of Gas Fired Hot Water
Boilers for Inputs Between 60 kW and 2MW
BS 7074: 1989: Part 2 – Application Selection &
Installation of Expansion
Equipment for Sealed Water Systems
BS 6880: 1988 – Codes of Practice for Low
Temperature Hot Water Systems
BS 779: 1989 – Cast Iron Boilers for Central Heating
& Indirect Hot Water Supply (Rated Output 44 kW and
Above)
CP342:2 – Centralised Hot Water Supply
Gas Safety (Installation & Use) Regulations 1998
IM/11 Flues for Commercial and Industrial Gas Fired
Boilers and Air Heaters.
IGE/UP/1 – Soundness Testing & Purging Procedure
for Non-Domestic Installations
IGE/UP/2 – Gas Installation Pipework, Boosters &
Compressors for Industrial & Commercial Premises.
Manufacturer's notes must not be taken in any way as
overriding statutory obligations.
BOILER SITING AND BASE
The boiler should be sited in accordance with BS
6644: 1991 with respect to protecting the boiler from
damage, air for combustion and ventilation, discharge
of products of combustion, clearances for service and
access, temperatures, noise levels, the disposal of
boiler water and the effects of flooding of the boiler
house or seepage from a roof top boiler house. See
page 4 for required boiler clearances for service and
access.
A level non-combustible floor capable of supporting
the weight of the boiler filled with water, see Table 3
together with any additional weight bearing down on
the base from connections, etc, must be provided.
The Derwent Compact Plus Condensing is designed
to be installed directly on the boiler house floor
provided it is adequate but we would recommend that
a base of adequate height off the floor so as to be
raised in case of flooding, but also low enough to
allow ease of erection is used. This should typically be
a 50mm concrete plinth with an area equal to that of
the plan of the boiler.
Vessels & Ancillary
Heating systems must be installed so that water
cannot be returned from the heating system to the
drinking water system to which it is connected to
prevent the drinking water being contaminated by the
heating water or chemicals used in the heating water.
Consideration should be given to fitting steel strips
beneath the boiler feet for boiler base protection, see
Fig. 2 for base details.
When preparing a site reference should be made to
Local Authorities and Building Regulations 1991.
Before any work takes place a Risk Assessment
should be carried out to determine what possible risks
are associated with the work which is taking place.
SECTION 2
PAGE 5