Installation; Site Requirements - Benchmark PulsaCoil A-Class 145 Design, Installation And Servicing Instructions

2.0 INSTALLATION

2.1 SITE REQUIREMENTS

The appliance is designed to be installed in an airing/cylinder cupboard and the relevant
minimum dimensions are provided in section 1.2 Technical Data.
Because of the ease of installation we recommend that the cupboard construction is
completed and painted before installation of the appliance. The cupboard door can
be fitted after installation.
If the unit needs to be stored prior to installation it should be stored upright in a dry
environment and on a level base/floor.
Installation and maintenance access is needed to the front of the appliance and
above the Top up cistern. See Section 1.2 Technical Data for further details.
The minimum dimensions contained in section 1.2Technical Data allow for the passage/
connection of pipes to the appliance from any direction as long as the appliance is
installed on the installation base provided. If the installation base is not used extra
space may be needed to allow connection to the pipework and the whole of the base
area should be continuously supported on a material which will not easily deteriorate
if exposed to moisture.
The floor of the cupboard needs to be level and even and capable of supporting
the weight of the appliance when full. Details of the weight when full is provided in
section 1.2 Technical Data.
The appliance is designed to operate as quietly as practicable. However, some noise
(from pumps etc) is inevitable when hot water is being used. This will be most
noticeable if the cupboards are located adjacent to bedrooms, on bulkheads, or at the
mid span of a suspendedfloor. Some noise may also be experienced from the immersion
heaters as the store approaches its design temperature.
Cupboard temperatures will normally be slightly higher than in a conventional system
and the design of the cupboard and door will need to take this into account. No
ventilation is normally required to the cupboard.
The separate Top up cistern will need to be located on top of the appliance or at high
A-CLASS
level in the cupboard housingthe PulsaCoil . The dimensions and clearances are
provided in section 1.2Technical Data. The location will need to provide a suitable route
for the cold feed expansion pipe as well as the open safety vent pipe. The location will
also need to provide a suitable route and discharge position for the warning/overflow
pipe and the ballvalve supply from the mains cold water system (if provided) if these have
been ordered as an optional extra.
Note: The standard appliance is supplied with a cistern without a ballvalve/
overflow for filling manually.
An electrical supply must be available which is correctly earthed, polarized and in
accordance with the latest edition of the IEE requirements for electrical Installations BS
7671.
The electrical mains supply needs to be 230V/50Hz.
The sizes/types of electrical supplies must be as detailed in 1.3 System Details,Electrical
Installation and the connections must be made using a double-pole linked isolator
with a contact separation of 3mm in both poles which are located within 1m of the
appliance. The supplies must only serve the appliance.
The hot and cold water 'first fix' pipework should be terminated 50mm above the
finished floor level in accordance with the dimensions provided in 1.2 Technical
Data.
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