Instructions – VELUX solar SRCC OG-300 label set – 47
Instructions
The following labels must be attached to the relevant valves in the system in order for it to be considered OG-300 compliant.
This page should be laminated, each label cut from it, punched in the margin at the right hand side and a xed to the
appropriate valve with a wire tie, plastic ties are inappropriate due to high operating temperatures. Failure to a x these labels
will void the SRCC OG-300 system certifi cation (Refer to page 28 for placement)
Valve 4 collector array isolation valve
Valve 4 is normally open during operation. It is closed to isolate the storage tank from the collector
array should the storage tank need servicing or replacing.
Valve 5 collector array isolation valve
Valve 5 is normally open during operation . It is closed to isolate the storage tank from the collector
array should the storage tank need servicing or replacing.
Valve 1 collector array fi ll/drain valve
Please consult your installation manual for specifi c freeze tolerance information. A 60% concentration
of DOWFROST propylene glycol and distilled water can protect your superstor solar system to
temperatures as low as -65˚ f. Lower concentrations of DOWFROST and distilled water will provide a
lower level of freeze protection.
Valve 1 collector array fi ll/drain valve (Warning hot)
Valve 1 is normally closed. When open, it is used to charge and drain the solar collector loop piping.
The heat transfer fl uid used in this system is DOWFROST propylene glycol. It must be handled and
disposed of in accordance with the dow chemical company material safety data sheet. A copy of the
msds has been provided with your installation manual. No other fl uid shall be used that would change
the original classifi cation of this system. Unauthorized alterations to this system could result in a
hazardous health condition.
Be extremely careful when draining this fl uid. It may be discharged at a very high temperature and/or
pressure.
Valve 3 collector array fi ll/drain valve (Warning hot)
Valve 3 is normally closed. When open, it is used to charge and drain the solar collector loop piping.
The heat transfer fl uid used in this system is DOWFROST propylene glycol. It must be handled and
disposed of in accordance with the dow chemical company material safety data sheet. A copy of the
msds has been provided with your installation manual. No other fl uid shall be used that would change
the original classifi cation of this system. Unauthorized alterations to this system could result in a
hazardous health condition.
Be extremely careful when draining this fl uid. It may be discharged at a very high temperature and/or
pressure.
VELUX solar SRCC OG-300 label set
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