Table of Contents
Advertisement
DESIGN
Heat Pump/Space Heating System Design
General
Warning: BoilerMate A-Class HP-DEM is an unvented hot water storage appliance
and therefore it is not suitable for use with a solid fuel boiler, steam or any other
uncontrolled heat source.
The BoilerMate A-Class HP-DEM is designed to be sold as part of a package with the
Mitsubishi Electric Ecodan air source heat pump. The combination of the BoilerMate
A-Class HP-DEM and the Mitsubishi Electric Ecodan air source heat pump has been
the subject of independent testing by BRE and a report is available on request.
The heating system design and installation must comply with the requirements of BS
6798 and BS 5449 for the performance parameters chosen for the system.
Plastic Pipework
All recommendations with regard to pipework systems in this manual are generally
based on the use of BS/EN Standard copper pipework and fittings. However plastic
pipework can be used in place of copper internally as long as it is recommended by
the manufacturer and installed fully in accordance with their recommendations. Barrier
type plastic pipework should always be used for these systems.
It is important to ensure that if the system is to be installed using plastic pipework it
is designed and sized using the parameters for plastic pipework.
Selection/Heat Pump Sizing
General model selection guidance is given in Table 1.2 Technical Data.
Heat Pump Primary Circuit
The flow and return from the heat pump must run directly to the connections provided
on the BoilerMate A-Class HP-DEM appliance.
A Fernox Boiler Buddy is provided as part of the package and this must be fitted
internally on the return circuit as close as practical to the heat pump unit fully in
accordance with the manufacturers instructions included later in this manual.
Central Heating Circuits
These should be sized in the normal way to suit the flow and return temperatures
for the system chosen. The flow and return pipework should be connected directly
to the connections provided.
If the heat pump/BoilerMate A-Class HP-DEM appliance is being fitted to an existing
heating system, this must be thoroughly flushed/cleaned before the appliances are
fitted.
Summer Towel Rail Circuit
If a separate summer towel rail circuit is required, this and the zone 1 CH circuit will
need to be arranged as separate zones complete with their own time and temperature
controls. Channel 2 on the clock provided on the appliance will then need setting to
constant (continuous) operation mode. The wiring should be taken from the zone 1
room thermostat terminals. For further details, please contact the Gledhill Technical
Helpline on 08449 310000.
Page 20
Advertisement
Table of Contents
