Ozroll OZS251E, Руководство по установке

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G 10. INSULATION OF PIPES
Insulation to pipework is required to reduce heat loss from hot pipes and in some localities cold pipes must be
well insulated, too, to prevent them from freezing.
The plastic insulation that comes on pre-lagged pipe does not provide adequate insulation for pipes that have
hot water in them for much of the day. The lagging, however, is satisfactory for pipes that are reburied in con-
crete or attached to a wall with saddles, permitting movement of the pipe within the lagging.
For pipes that have hot water flowing through them all day, such as those connecting solar collectors with a
storage cylinder, additional insulation is required. A functional and suited for purpose lagging must be used on
all hot water pipe work including flow and return lines.
H1. COLLECTORS – INSTALLATION REQUIREMENTS
All plumbing and other work must be carried out by a qualified person and in accordance with the National
Plumbing Standard AS/NZS 3500.4 and local authority requirements. If these instructions conflict with local
regulations then local regulations shall take priority
WARNING - Do not commence installation until all Safety issues related to the installation requirements includ-
ing lifting of modules onto the roof have been addressed.
1. The solar collectors should be installed facing North. If this cannot be achieved, orientation of the panels
up to 45 degrees from North is possible. However, it must be understood the efficiency of the system may be
reduced.
2. The collectors must be installed in a shade free position particularly between 9am and 3pm – the highest
solar input times. For maximum efficiency the collectors should be installed at a similar angle to the latitude of
the installation location. This will vary from place to place around Australia. Ideally, the collectors should be at
no more than 10 % more or less than the latitude angle for optimum performance. Collectors may be installed
at the roof angle for simplicity of installation and appearance, but must never be horizontal, as liquid shall not
circulate effectively and the collector glass will not self clean during rainy periods. As a guide, the collectors
should be installed with a minimum inclination of 10 degrees and a maximum inclination of 45 degrees
3. The solar hot and solar cold pipes between the solar storage cylinder and the solar collectors should be a
minimum of DN15.
4. The panel cold supply pipe connects from the storage cylinder cold inlet supply to the bottom of one of the
collectors via the circulating pump and the hot outlet pipe from the collectors connects to the cylinder’s solar
connection. The hot water sensor is connected at the outlet from the panel. All pipes must have a continuous
fall to their connections with the storage cylinder.
5. All pipes MUST be copper and fully insulated with appropriate insulation up to edge of the collectors. Insula-
tion must be UV and weatherproof if exposed. All compression fittings must be brass or copper olives.
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