Design; Description - gledhill StainlessLite D120 Design, Installation & Servicing Instructions

Manufacturer: Gledhill Building Products Ltd
Maximum inlet pressure to
Pressure reducing valve
Operating pressure (PRV setting)
Expansion vessel charge pressure
Expansion relief valve setting
Opening pressure of P & T Relief Valve
Opening temperature of P & T Relief Valve
Energy cut-out thermostat setting
Max. working pressure - Primary heat exchanger (Indirect models) 6 bar
Max. working pressure - Solar heat exchanger (Solar models)
Immersion heater rating
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 PRV combination valve/expansion relief
• Lift up pressure and temperature relief valve
• Control thermostat
• Energy cut-out thermostat
• Energy cut-out motorised valve (indirects only)
• Tundish
• 3kW Immersion heater including control and cut out thermostats
• Expansion vessel/mounting bracket/flexible hose
• Technical/user product literature
(Note: Please refer to tables 1 and 2 on pages 6-9 to confirm the quantity of immersion
heaters supplied with the unit)
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 fitted 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 specific manual handling assessment is shown in Appendix B at the rear of this
manual.
The Environment
This product has been manufactured using many recyclable materials, including the
approved HCFC/CFC free polyurethane foam insulation. At the end of its useful life, it
should be disposed of at a Local Authority Recycling Centre, to maximise the products
full environmental benefits.
Maintenance
Modifications should not be made to this
product. Replacement par ts, including
12 bar
3 bar immersion heaters, should be purchased from
Gledhill Building Products Limited, or agents
3 bar
approved by them. Unvented hot water storage
4.5 bar
6 bar vessels need regular routine checks, and these
are detailed below. It is for this reason that this
92-95°C
manual must always be left with the Stainless
85°C
Lite.
10 bar
It is essential that these checks be carried out
3kW, 240V AC
at the time of boiler maintenance by a qualified
installer:
1. Manually open the relief valves in turn, and
2. It is important to check that the discharge
3. Turn the mains water off and remove and
4. Check the charge pressure in the expansion
5. Re-fill the system and ensure that all relief
6. The Benchmark Service Record should be
7. Check the water pressure downstream of the
8. Check and if necessary, descale the heat
Note:
The cylinder is factory fitted with a lift up
temperature & pressure relief valve that must
not be used for any other purpose or removed.
The cylinder is factory fitted with immersion
heaters with thermal cut outs. Immersions
without thermal cut outs must not be fitted.
Page 3

DESIGN

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).
pipework is carrying the water away
adequately. Check for blockages etc. if it is
not.
clean the strainer element in the Pressure
Reducing Valve.
vessel and repressurise if required
valves have re-seated.
updated at each service.
combination valve is 3 bar in static condition.
exchanger in hard water areas ie. above
200ppm (mg/l).

DESCRIPTION