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Earth Save Products-ASHP
PASRW030B-D-PS
V 1.8
PASRW040B-D-PS
PASRW050B-D-PS
unit. You should also use these diagrams to check the installation through
before starting it up.
3.8 Power Cable and Switch
The unit must have its own independent power supply from the
consumer board. This power supply must be equipped with a
suitable ampere rated MCB.
The power supply must be equipped with a two port rotary isolation
switch that has at least a 3mm contact separation at all poles.
The wiring must be completed by a suitably qualified and accredited
electrician
All wiring should be routed neatly, be kept as far away as possible
from the units water pipes and valves and comply with relevant
Regulations. High voltage and low voltage wiring should be clearly
separated.
Part L2 of The Building Regulations requires that the heating system
be fitted with a 7 day programmer. However, the most efficient way
of running an ASHP system is to program is to ALWAYS On. An L2
compliant programmer may be used but it is
very
IMPORTANT
that
any signal going back to the heat pump from the heating system
thermostat and/or programmer must be
VOLT FREE !
The heating
system thermostat/ programmer controller is wired to terminals
25&26 inside the heat pump (these connections are not polarized) –
see appendices. If you do not use a
volt free
programmer you WILL
damage the ASHP unit.
3.9 Normal Heating Water Flow Temperatures
The heat pump should be installed with a buffer tank of suitable size (consult
your supplier). The buffer tank will store water at a constant temperature
and the stored water may be used for heating or cooling. Typically, for under
floor heating the water flow temperature should be 35 °C, for Thermovec (fan
coil) units 45-50 °C and for radiators 35-50 °C. For under floor heating, you
must consider and take account of the floor finish/covering to be used as this