Page 3
DESCRIPTION
DESIGN
Maintenance
Modifications should not be made to this
produc t. Replacement par ts, including
immersion heaters, should be purchased from
Gledhill Building Products Limited, or agents
approved by them. Unvented hot water storage
vessels need regular routine checks, and these
are detailed below. It is for this reason that this
manual must always be left with the Stainless
Lite.
It is essential that these checks be carried out
at the time of boiler maintenance by a qualifi ed
installer:
1. Manually open the relief valves in turn, and
check that water is discharged from the
valves and runs freely through the tundish
and out at the discharge point. Ensure that
the valves re-seat satisfactorily. (Note - the
water may be very hot).
2. It is important to check that the discharge
pipework is carrying the water away
adequately. Check for blockages etc. if it is
not.
3. Turn the mains water off and remove and
clean the strainer element in the Pressure
Reducing Valve.
4. Check the charge pressure in the expansion
vessel and repressurise if required
5.
Re-fi ll the system and ensure that all relief
valves have re-seated.
6. The Benchmark log book supplied should
be updated at each service.
7. Check the water pressure downstream of
the combination valve is 2.25 bar in static
condition.
8. Check and if necessary, descale the heat
exchanger in hard water areas ie. above
200ppm (mg/l).
Note:
The cylinder is factory fi tted with a temperature
& pressure relief valve that must not be used for
any other purpose or removed.
The cylinder is factory fi tted with immersion
heaters with thermal cut outs. Immersions
without thermal cut outs must not be fi tted.
Manufacturer: Gledhill Building Products Ltd
Maximum inlet pressure to
Pressure
Reducing
Valve
12
bar
Operating pressure (PRV setting)
2.2 bar
Expansion Relief Valve setting
4.5 bar
Maximum primary working pressure
3.5 bar
Opening pressure of T & P Relief Valve
6 bar
Opening temperature of T & P Relief Valve
95°C
Energy cut-out thermostat setting
80°C
Immersion heater:
Rating: 3kW, 240V AC
All cylinders are manufactured in accordance with the requirements of BS EN 12897
The tundish must be positioned so that it is visible to the occupant and is away from
electrical devices.
Components supplied with Stainless Lite:
• Cold water inlet combination valve
• Expansion relief/PRV combination valve
• Temperature and pressure relief valve
• Control
thermostat
• Energy cut-out thermostat
• Energy cut-out motorised valve (indirects only)
• Tundish
• 3Kw Immersion heater
• Expansion
vessel/mounting
bracket/fl exible hose
• Technical/user product literature
(Note: Two immersion heaters are supplied with the direct Stainless Lite)
In any situation where the volume of heated pipework (eg. secondary circulation
pipes or manifold pipework for multiple units) exceeds 10 litres, then an
additional expansion vessel must be fi tted to accommodate the extra expansion
volume.
Handling Before Installation
Stainless Lite must be handled with care and stored the correct way up in a dry place.
Any manual handling/lifting operations will need to comply with the requirements of
the Manual Handling Operations Regulations issued by the H.S.E. The appliance can
be moved using a sack truck on the rear face although care should be taken and the
route should be even. In apartment buildings containing a number of storeys we would
recommend that the appliances are moved vertically in a mechanical lift. If it is proposed
to use a crane, expert advice should be obtained regarding the need for slings, lifting
beams etc.
A specifi c manual handling assessment is shown in Appendix B at the rear of this
manual.
Содержание Stainless Lite Direct 90-300 litres
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