06
BALANCED COLD CONNECTION
If there are to be showers, bidets or monobloc taps in the
installation then a balanced cold supply is necessary. There
is a 22mm balanced connection on the inlet set.
HOT WATER PIPEWORK
Run the first part of the hot water distribution pipework
in 22mm. This can be reduced to 15mm and 10mm as
appropriate for the type of tap etc. Your aim should be
to reduce the volume of the hot draw-off pipework to a
practical minimum so that the time taken for the hot water
is as quick as possible. Where monobloc mixing taps and
showers are used, these should be installed to comply with
the Water Supply (Water Fittings) Regulations 1999. If these
devices are supplied with un-balanced supplies there should
be single check valves installed at both inlets, to stop over
pressurising of either supply.
PRIMARY COIL CONNECTIONS FOR INDIRECT UNITS
For Solar input models refer to pages 11-12 before making
any connections.
Connect the primary connections (Indirect only) using the
compression connections provided. The primary circuit must
be positively pumped. Gravity circulation is not suitable.
Either primary connection may be used as the primary flow,
reheat times are not effected. The primary circuit can be
open vented or sealed, with up to a maximum pressure of 3.5
bar. If you seal the primary circuit an additional expansion
vessel and safety valve is required. The boiler may be Gas,
Electric or Oil but must be under effective thermostatic
control. Uncontrolled heat sources such as some AGA’s, back
boilers, solid fuel stoves, etc. are NOT SUITABLE. Please
contact our Technical department for guidance. Connect the
two port zone valve ( indirect only ) into the primary flow
pipework.
SECONDARY CIRCULATION
ULTRASTEEL PLUS can be used with secondary circulation.
An appropriate WRAS approved bronze circulator should
be used in conjunction with a non-return valve to prevent
backflow. On large secondary circulation systems it may
be necessary to incorporate an extra expansion vessel into
the circuit to accommodate the increased system water
volume. Secondary circulation should be avoided on Direct
electrically heated units being used on off-peak electricity
tariffs.
A secondary return boss is fitted as standard on 210, 250
& 300 ltr units. On smaller sizes, tee into the cold feed pipe
above the drain.
IMMERSION HEATERS
The immersion heater is supplied with remotety mounted
thermostat within the heater enclosure. The thermostat
switches both live and neutral and comprises an adjustable
control and a high limit maually resettable thermal cut-out.
All thermostat connections and probe mounts are factory
fitted.
The electrical supply to each immersion heater must be
fused at 13A via a double pole isolating switch to BS 60335.
The cable must be 1.5mm
2
3 core heat resistant (85°C
HOFR) sheathed flex complying to BS 50525-1. Do not
operate the immersion heater/s until the unit is full of water.
Do not operate the immersion heater/s if any sterilisation
liquid is in the cylinder as this will cause premature failure.
Each immersion heater must be earthed.
Remove the thermostat cover by removing the retaining
screw, opening the cover and sliding it to the left to
disengage from the retaining clamps.
Connect to the terminal block ensuring the outer sheath is
clamped and the cables are secured without strain on any
of the components or cables.
ELECTRICAL CONNECTIONS
Warning: This appliance must be earthed and all wiring
should be completed by a competent electrician in
accordance with the latest I.E.E wiring regulations
Complete the wiring – use the appropriate wiring diagrams
on page 13 - 15.
KINGSPAN ALBION
RELIABLE HOT WATER CYLINDERS
