Page 15
Electrical Connection - Standard Appliance
The PulsaCoil BP immersion heater wiring/
connections should be carried out by a
competent person to the IEE Requirements for
Electrical Installations BS 7671.
All the immersion heater terminals are suitably
labelled.
Note:
Do not attempt the electrical work unless
you are competent to carry it out to the above
standards.
Before commencing check that the power
source is in accordance with the Site
Requirements section of this manual and ensure
that it is isolated.
1) Run the external wiring from the adjacent
isolator through the service slot provided in
the base of the appliance to the appropriate
immersion heaters.
2) You may also run the external wiring from
the adjacent isolator through the service
slots provided in the base of the appliance
to the scale inhibitor PCB terminals as shown
in fi gure 1.8.
Note
: The appliance pipework should be
bonded to earth to comply with the IEE
Requirements for Electrical Installations BS
7671.
I
t is normally envisaged that the top up cistern will be located in the same cupboard
as the PulsaCoil BP appliance itself to maintain a dry roof space.
The cold feed/open vent pipework (as supplied) should be used to install the top up
cistern directly on top of the appliance.
If it is necessary to locate the cistern in any other location, the cold feed/open vent
pipework (as supplied) should be used to connect to the top up cistern and pipework
site run by the installler to connect this to the appliance.
Obviously, any pipework in the roof space and the feed and expansion cistern will
need to be adequately insulated to protect against frost damage.
Combined feed and open pipe arrangements must not be used.
No valves should be fi tted in the safety open vent which must be a minimum of 22mm
copper pipe or equivalent throughout its length.
The mains cold water supply to the ballvalve (if provided) shall be provided with a
suitable servicing valve.
The overfl ow/warning pipe (if provided) shall have a continuous fall, be fi tted to
discharge clear of the building and be sited so that any overfl ow can be easily observed.
It shall also be installed in a size and material suitable for use with heating feed and
expansion cisterns in accordance with BS 5449 (e.g 22mm copper) and should not
have any other connections to it.
Note: If a warning/overfl ow pipe is NOT provided the top up cistern should be
fi lled from a temporary hose connection supplied from any cold water tap or
from a permanent cold branch provided adjacent to the top up cistern. The
temporary hose must be fi tted with a double check valve and removed once
the appliance is fi lled.
The store may fi ll more slowly than the feed tank. It is important to check the
water level again in the cistern after commissioning and top up if necessary.
Cold feed / open vent
pipework
(as supplied)
Interconnecting
Pipework
(By Installer)
6m max
Figure 1.10
PulsaCoil BP
INSTALLATION
INSTALLATION
Содержание PulsaCoil PCBP 120
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