Справочник Пользователя для Rheem STREAMLINE ELECTRIC

BLEEDING THE SOLAR COLLECTORS 
It is necessary to purge air from the collector circuit: 

•  When the water heater is to be turned on and the solar collectors and solar hot and solar cold pipes 

have been drained. 

•  After maintenance has been conducted on the pipe work and air has entered the system. 

•  If the circulator appears not to be circulating water around the system. 

 

 Warning: Bleeding the solar collectors should be conducted in the morning, within three hours of 

sunrise, when the water temperature inside the solar collectors is lower. 
 
To purge air from the collector circuit: 

•  Ensure the water heater is full of water and all of the hot taps are turned off. 

 

•  Using a flat blade screwdriver, open the bleed valve (if it is not 

already open) fitted adjacent to the solar hot water (from 
collector) inlet of the solar storage tank (see diagram). 

•  The mains pressure will force water to flow from the tank and 

through the pipe work, expelling air from the collector circuit 
through the bleed valve. This is evidenced by spurting of water 
from the drain line connected to the bleed valve. 

 Warning: Exercise care to avoid any splashing of water, as 

water discharged from the solar collectors may be of a very high 
temperature. 

•  Close the bleed valve when water runs freely from the drain line. 

 

FREEZE PROTECTION 
Although the system has a level of freeze protection, designed to guard the system from unexpected 
frost conditions, the system is not recommended for installation in areas subject to frost or freeze 
conditions. Freeze conditions occur below 6

°C. The system has NO WARRANTY for freeze damage 

(refer to 

 on page 37). 

 
The anti freeze control is designed to recirculate a small amount of water from the solar storage tank 
through the solar pipe work during periods of low temperatures. This is to prevent the water inside the 
pipe work from freezing. The solar hot and solar cold pipes must be fully insulated with closed cell 
polymer insulation (minimum thickness 13 mm) to offer protection against freeze damage. It is essential 
that the electrical circuit to the solar control unit is continually turned on if there is a risk of freezing. The 
solar warranty does not cover damage caused by freeze conditions. 
 
Notes: 

•  If it is necessary to switch the power off to the solar control unit and there is a risk of freezing, then 

it is necessary to have your plumber drain the solar collectors and solar flow and return pipe work. 

•  The freeze protection system will be rendered inoperable if electrical power is not available at the 

solar control unit. 

•  Pipe work between the solar collectors and solar storage tank must be insulated. 

•  The system is not covered for freeze damage. 

• Refer 

 on page 37. 

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