The domestic hot water plate heat exchanger pump should
always be set at maximum speed.
If it is necesary to replace the pump fitted to the appli-
ance the pump head (motor pack) only should be
removed as recommended by the manufacturer
(Grundfos). Assuming it is within warranty this will be
accepted by a merchant as being under warranty as long
as a complete pump i.e. alleged faulty motor pack and
new base is left with the merchant. It is important when
a pump has been replaced to ensure that any air is
adequately vented
DOMESTIC HOT WATER
TEMPERATURE
The electronic system automatically regulates the
domestic hot water outlet temperature to 55
o
C and no
adjustment or setting is necessary during installation.
CUPBOARD DETAILS
INSTALLATION
9
INSTALLATION INSTRUCTIONS
Plumbing Connections
a)
Before installation it should be confirmed that a
mimimun 1 bar mains water pressure under flow
conditions is available.
b)
Make all water connections in accordance with the
labelling on the thermal store and the associated
pipework as shown in Figure 3.1.
c )
Install the domestic hot and cold water pipework
generally as described under System Design and
as shown in Figure 1.1.
d)
All factory made joints should be checked after
installation in case they have been loosened during
transit.
e)
Ensure that the DHW pipework is run such that it
does not heat the cold water distribution pipes in the
dwelling.
THERMAL STORE FEED AND
EXPANSION CISTERN
It is most important to fill with cold water so that the
water level is in line with the mark on the inside of the
feed and expansion cistern. This allows adequate room
for expansion.
PUMP SETTINGS/
REPLACEMENT
Overflow/Warning Pipe (if fitted)
a)
The overflow warning pipe should be fitted to
discharge clear of the building and be sited so that
any overflow can be easily observed.
b)
The overflow/warning pipe should be installed in a
material suitable for use with heating feed and
expansion cisterns in accordance with BS5449 (such
as copper) and should not have any other
connections to it.
Front
Mains
22 Outlet HWS (Compression)
Mains
22 Inlet CWS (Compression)
Fig 3.1 PulsaCoil III pipe connection
arrangement
It is important that the appliance is installed on a
level and even floor or if raised above the base should
be continuosly supported. If the support is timber, it
shal be marine ply, type C4 chipboard to B.S.5669
or other material which will not deteriorate if exposed
to moisture. Details of the appliance wieght when
full is provided in Table
1.1
of technical specifications.
Important Notes
a) Minimum cupboard sizes are shown in Table 1.1 and
it is important to check that these are available prior to
installation.
b) It is recommended that any surface mounted heating
and hot and cold water supply pipework in the PulsaCoil
III cupboard must be insulated to reduce the standing
losses and to prevent unnecessarily high cupboard
temperatures. More heat is lost from the first metre of
pipework connected to the store than from the store.
NOTE
: It is a requirement of Part L of the Building Regu-
lations that all hot water pipework within 1 metre of a hot
water appliance is insulated.
c) Notwithstanding the above, the cupboard temperatures
are nomrally higher than in a conventional system and
therefore the design of both the cupboard and the door
should take this into account.
