4
Limitations
The cylinder should not be used in association with
any of the following:
•
Solid fuel boilers or any other boiler in which the
energy input is not under effective thermostatic
control, unless additional and appropriate safety
measures are installed.
•
Ascending spray type bidets or any other class
1 back syphonage risk requiring that a type A air
gap be employed.
• Steam heating plants unless additional and
appropriate safety devices are installed.
•
Situations where maintenance is likely to be
neglected or safety devices tampered with.
• Water supplies that have either inadequate pressure
or where the supply may be intermittent.
•
Situations where it is not possible to safely pipe
away any discharge from the safety valves.
• In areas where the water consistently contains a
high proportion of solids, e.g. suspended matter
that could block the strainer, unless adequate
filtration can be ensured.
• In areas where the water supply contains chloride
levels that exceed 250mg/l.
Important Note:
THE SOLAR CYLINDER MUST BE INCORPORATED
INTO A FULLY PUMPED SOLAR PRIMARY
CIRCUIT.
CONTROL OF THE SOLAR PRIMARY CIRCUIT IS
ACHIEVED BY THE USE OF EXTERNAL CONTROLS
NOT SUPPLIED
WITH THE UNIT. CONTROL MUST
BE A PURPOSE DESIGNED SOLAR DIFFERENTIAL
TEMPERATURE CONTROLLER.
Checklist
• Unvented cylinder
•
Cold control pack
- Tundish
- Combination valve
- Expansion vessel
- Tool - Element spanner
- Compression nuts & olives
- 2 Port motorised valve
•
Literature pack
- Installation manual
- Guarantee card
Operational Summary
Maximum mains pressure
1.6MPa (16 bar)
Operating pressure / PRV
0.35MPa (3.5 bar)
Maximum design pressure
0.6MPa (6 bar)
Expansion vessel charge pressure 0.35MPa (3.5 bar)
Expansion relief valve setting
0.6MPa (6 bar)
T&P relief valve setting
90-95°C/1.0MPa (10 bar)
Maximum primary circuit pressure 0.3MPa (3 bar)
(Auxiliary coil)
Maximum primary circuit pressure 0.3MPa (3 bar)
(Solar coil)
Pressure drop (Auxiliary coil)
0.02MPa (0.2 bar)
Pressure drop (Solar coil)
0.02MPa (0.2 bar)
Storage capacity
See Table 1 - page 3
Weight when full
See Table 1 - page 3
All models in conformance with BS EN 12897:2006
Note: Although the primary coil pressure rating is 1.0Mpa (10 bar) the 2 port zone valve supplied with the
cylinder is only rated 0.86MPa (8.6 bar). If the cylinder is to be plumbed into a system delivering 1.0MPa (10
bar) a suitable 2 port zone valve will have to be sourced.
Содержание Zircon 190 S Ind
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