Utica Boilers UB95M-200 Installationsanweisungen

  

Eliminate System Leaks
Continuous addition of make-up water will 

constantly add oxygen to system. Eliminate 

all system leaks. All system leaks must be 

repaired immediately. 

Verify expansion tank is operational and 

properly sized. Undersized expansion tanks 

cause relief valve weeping and substantial 

make-up water addition.

Operation of this boiler in system containing 

signifi cant amounts of dissolved oxygen 

can cause severe heat exchanger corrosion 

damage.

This boiler is not designed for use in systems 

containing regular additions of make-up 

water. Regular additions of make-up water 

may cause severe heat exchanger damage.  

System leaks may not always be visible. An 

unseen system leak will become obvious if 

boiler pressure decreases when make-up 

valve is closed. 

This boiler is designed for closed loop hydronic 

heat system ONLY! This boiler is not suitable 

for natural gravity type installations, or any 

other open type system.

  

Clean the System First
BEFORE connecting boiler to heating system, 

clean and fl ush system thoroughly. Verify 

system is free of sediment, fl ux and any 

residual boiler water additives.

Systems having antifreeze not recommended 

must be completely fl ushed to ensure no 

old antifreeze remains. In older systems 

obviously discolored, murky or dirty water; or 

pH reading outside acceptable range (between 

7.0 and 8.0) are indications the system 

should be cleaned or treated. Thoroughly 

fl ush system with clean water to remove any 

sediment or contaminants. Sludge and iron 

oxide deposits can cause rapid breakdown of 

inhibitors.

Flushing with clean water. If chemical cleaners 

are used, use only those recommended 

for use with aluminum boilers. Follow 

chemical cleaner manufacturer’s instructions 

completely.

DO NOT mix different manufacturer’s 

products.

  

Fill Water and Chemistry
Verify water used to fi ll system meets these 

requirements:
System fl uid pH maintained between 7.0 

and 8.0. 
Maintain water hardness below 7 grains 

hardness. 
Filling with chlorinated potable water is 

acceptable. DO NOT fi ll boiler with water 

containing chlorine in excess of 100 ppm.
DO NOT use inhibitors or other additives that 

are not listed at the end in this addendum.
Consult local water treatment specialist 

for recommendations if any of above 

requirements is outside stated ranges.