Crown Boiler BWF195 用户手册

 

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1)  Safe, reliable operation of this boiler depends upon installation by a professional heating contractor in strict accordance 

with this manual and the authority having jurisdiction.  

 

•  In the absence of  an authority having jurisdiction, installation must be in accordance with this manual and the 

National Fuel Gas Code, ANSI Z223.1 

•  In Canada, installation must be in accordance with CSA B149 (Installation Code for Gas Burning Appliances and 

Equipment).  

•  Where required by the authority having jurisdiction, this installation must conform to the Standard for Controls and 

Safety Devices for Automatically Fired Boilers (ANSI/ASME CSD-1) 

 
2)  Read Section VI to verify that the boiler can be vented in accordance with these instructions.  
 
3)  Make sure that the boiler is correctly sized: 
 

•  For heating systems employing convection radiation (baseboard or radiators) use an industry accepted sizing method 

such as the I=B=R Heat Loss Calculation Guide (Pub. #H21 or #H22) published by the Hydronics Institute in 
Berkeley Heights, NJ. 

•  For new radiant heating systems refer to the radiant tubing manufacturer’s boiler sizing guidelines.  

•  For systems including a Crown Mega-Stor indirect water heater, size the boiler to have either the DOE Heating 

Capacity required for the Mega-Stor or the net rating required for the heating system, whichever results in the larger 
boiler.  

•  For systems that incorporate other indirect water heaters, refer to the indirect water heater manufacturer’s instructions 

for boiler output requirements. 

 
4)  Make sure that the boiler received is configured for the correct gas (natural or LP). 
 
5)  For installations at altitudes above 2000ft, special orifice and pressure switches may be required. Make sure that the boiler 

is configured for use at the correct altitude.  

 
 

 
1)  Clearances: 
 
•  Observe the minimum clearances shown below. These clearances apply to all combustible construction, as well as non-

combustible walls and doors. Also see Figure 2. 

 

Front – 6” 
Left Side – 1” 
Right Side – 4” 
Rear – 1” 
Top – 36” 
Vent Pipe – 5” 

 
•  A 24” service clearance from the jacket is recommended on the left, right, and front of the boiler.  These clearances may 

be reduced to those shown in Figure 2, however servicing the boiler will become increasingly difficult as these service 
clearances are reduced.  

•  If the right side 24” service clearance is reduced, adequate clearance must be maintained to easily read both the gauge and 

the limit control. Alternatively, access to the gauge and limit may be provided using a door. 

 
  
2)  The boiler must be installed on a hard level surface. This surface may be combustible.