Utica Boilers UB95M-200 Installationsanweisungen

  

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addendum.  See Table 1.
Continuous addition of make-up water 

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will dilute power of antifreeze and 

change buffers ability to maintain pH.
Flush old antifreeze from system. 

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Flush boiler and system separately.
Do not use antifreeze unless required.

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Antifreeze, if needed, must be of 

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type listed on next page due to 

their operational characteristics of : 

type 356 T6 aluminum at operating 

temperatures between 20°F (-6.7°C) 

and 250°F (121°C). (See Table 1 for 

allowable products.)
Always clean system prior to 

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using antifreeze as stated in this 

supplement.
Be sure to follow antifreeze 

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manufacturer’s instructions for use, 

safe handling and storage of their 

products. Refer to MSDS (Material 

Safety Data Sheets) provided by 

antifreeze manufacturer for potential 

hazards and first aid procedures for 

exposure or ingestion.
Antifreeze will raise pH of hydronic 

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solution in heating system above 

recommended level due to corrosion 

inhibitors. Solution must be treated to 

maintain a pH within recommended 

level. Follow antifreeze manufacturer’s 

instructions to adjust pH. 

If system has leaked, water and antifreeze 

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chemistry will need to be adjusted. To avoid 

damage to boiler, check pH and chemistry 

of boiler solution and consult the antifreeze 

manufacturer for recommendations. 
It is recommended that pH reading be 

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taken annually, and adjusted as necessary. 

Follow antifreeze/inhibitor manufacturer’s 

instructions for details on how to adjust pH. 
Antifreeze solutions can break down over 

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time. Failure to check antifreeze chemistry 

on annual basis  may result in accelerated 

corrosion of boiler and other system 

components. Consult with antifreeze 

manufacturer for recommendations.
Use of antifreeze in any boiler will reduce 

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heating capacity as much as 10-20%. Take 

into consideration when sizing heating 

system, pumps and expansion tank. Consult 

antifreeze manufacturer’s literature for 

specific information on reduced capacity. 
Using antifreeze manufacturer’s instructions, 

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determine freezing temperature needed and 

use correct amount of antifreeze. Never 

exceed 50% antifreeze by volume. 
Boiler operating pressure must remain below 

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15 psi for antifreeze solutions that specify 

a maximum of 250°F (121°C). Otherwise, 

increase system operating/tank pressure to 

20 psig.  Note: Refer to expansion tank