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3.4
Hydraulic Requirements
Sunamp Ltd. Heat Batteries are NOT suitable for tank-fed hot water
systems.
•
All connection tube work inside the Heat Battery casing must be
Ø
22mm copper tube
. This to allow the earth connection between the
case, inlet, and outlet tube fittings.
•
Ensure that the unit is
electrically isolated
from mains and that the
controller lid is closed whilst performing any hydraulic pipework. This is
to avoid water or particles coming into contact with the PCB and other
electrical components.
•
DO NOT fit Isolation valves between the expansion vessel and the Heat
Battery.
•
The tube grommets used for inlet and outlet into the Heat Battery must
be cut to allow the passage of the copper tubes by safely using an
appropriate cutting tool.
•
Although Ø22mm copper or equivalent plastic tube work should suffice
in most installations:
o
Plastic tube work must not be used inside the heat battery and
no plastic tube connections must be made to the heat battery
inlet or outlet ports.
o
It is recommended that sizing of the tube work should consider
mains water supply pressure, the design flow rates, size of the
Heat Battery and pressure loss.
•
As a mandatory requirement it is necessary to install an energy supply
cut off valve or equivalent (i.e. 2-way port valve or 3-way port valve) on
the Heat Pump Flow circuit.
3.5
Temperature and Insulation Requirements
Applying excessive heat to the system tubes will cause damage to the Heat
Battery and its internal components.
•
Heat Batteries use the SU58 Phase-Change Material (PCM), which has
a
phase transition temperature of 58°C
.
•
All connected tubes should be insulated for
at least 1m
from their
connection points with the Heat Battery.
•
The flow temperature of the Heat Pump must not exceed 80
°
C.
