APPENDIX
SRCC CERTIFIED OG 300 THREE-WAY SYSTEM
SRCC SECTION:
The solar energy system described by this manual, when properly installed and maintained,
meets the minimum standards established by the SRCC. This certification does not imply
endorsement or warranty of this product by SRCC.
The following procedures are required for SRCC certified systems.
1. The SRCC OG 300 three-way system plumbing schematic must be followed when
installing the system.
2. All standards in the SRCC OG 300 Operating Guidelines and Minimum Standards
(January 1996) must be met.
3. A 40 or 50-gallon conventional electric or gas water heater must be used as a backup
water heater. Direct systems or the use of an instantaneous water heater as a backup
are not SRCC certified.
4. An anti-scald valve must be used on the hot water out to the household (see plumbing
schematic).
5. All piping in unheated attic spaces or exposed to outdoor weather conditions in climates
where freezing might occur, must have a minimum of 1.5” of Rubatex or Armaflex pipe
insulation or some other form of pipe insulation that has an R value of 10.7 or greater.
6. There must be a cold water shut off valve on the cold water inlet supply line so the hot
water system can be isolated from the house cold water supply.
7. All
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ROGRESSIV
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solar water heating systems have a freeze tolerance limit of 10°F
ambient temperature. Freeze tolerance limits are based upon an assumed set of
environmental conditions. Extended periods of cold weather, including ambient air
temperatures above the specified limit, may cause freezing in exposed parts of the
system. It is the owner’s responsibility to protect the system in accordance with the
Supplier’s instructions if the air temperature is anticipate to approach the specified
freeze tolerance limit.
8. Place the Freeze Protection sticker provided on the conventional water heater in a place
that is noticeable and easy for the homeowner to read. If the sticker is lost or damaged,
type a new one and tape it with clear tape on the tank (completely cover the label with
clear tape to protect it).
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Summary of Contents for PROGRESSIV TUBE
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