Design - Viessmann Vitocell 200 Cylinder Design, Installation, User & Servicing Instructions

Supplied By: Viessmann 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
• Pressure and temperature relief valve
• Control thermostat
• Energy cut-out thermostat
• Energy cut-out motorised valve (indirects only)
• Tundish
• 3kW Immersion heater
• 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
Viessmann Vitocell 200 Cylinder 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.
Maintenance
Modifications should not be made to this
product. Replacement parts, including immersion
12 bar
3 bar heaters, should be purchased from Viessmann
3 bar Limited, or agents approved by them. Unvented
4.75 bar hot water storage vessels need regular routine
checks, and these are detailed below. It is for this
6 bar
95°C reason that this manual must always be left with
80°C the Viessmann Vitocell 200 Cylinder.
It is essential that these checks be carried out
10 bar
3kW, 240V AC at the time of boiler maintenance by a qualified
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-fill 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 3 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 fitted with a 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.
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