Bryan Boilers 200 Manual De Usuario

 

Date:  

8-4-2010 

 

Revision: 0 

 

Form:  

2396

 

BE REMOVED after the boiler is set in-place on 
its concrete foundation before any 
piping/electrical connections are made.   It is 
recommended that the plastic protective cover 
be left on as long as possible to reduce finish 
damage from the installation. 

Do not run any pipes along the tube access 
panel side of the boiler.  Maintain clearances as 
shown on the dimensional drawing for servicing 
of the boiler tubes.  Provide at least 48" from the 
front of the boiler, unless a larger dimension is 
indicated on the dimensional.  All piping should 
be designed and installed to avoid any loadings 
on the boiler connections or piping.

 

The system supply and return flow connections 
are shown on Figure 3 and Figure 4 
respectively.  A gate valve should be installed on 
the boiler outlet and inlet lines.  This allows the 
boiler to be isolated from the heating system for 
draining and servicing.

 

Safety relief valve(s) are shipped loose. 

 

Connections are provided in the top of the boiler 
for the safety relief valve(s).  The safety relief 
valve discharge piping must be the same size as 
the safety relief valve discharge opening and run 
to a point of safe discharge.  Avoid over-
tightening as this can distort valve seats.  All 
piping from the safety relief valve(s) must be 
independently supported with no weight carried 
by the valve. 

 

Connection(s) to an expansion tank are to be 
provided by others in the system piping separate 
from the boiler. 
 

A drain valve must be installed on the boiler 
drain connection, the same pipe size as this 
connection, to allow draining of the boiler. 

A 1” MPT connection is provided to drain the 
condensed products of combustion from a trap 
located beneath the boiler.  This must be run to 
a drain using stainless steel or PVC piping.  The 
condensate temperature should never exceed 
212

o 

F and the pH of the condensate should 

never be greater than 3.5.  NO VALVE is to be 
installed in this line from the boiler to point of 
discharge. 
 

The installation must conform completely to the 
requirements of the authority having jurisdiction, 
or in the absence of such, requirements shall 
conform in the U.S. to the current National Fuel 
Gas Code, ANSI Z223.1-1984, or in Canada to 
the current Natural gas and propane installation 
code (CAN/CSA B149.1-05), and applicable 
regional regulations for the class; which should 
be followed carefully in all cases.  Authorities 
having jurisdiction should be consulted before 
installations are made.

 

A drip leg, or sediment trap, must be installed in 
the gas supply line.  See Fig. 1.5A.  The gas line 
must be connected to a supply main at least as 
large as the gas train connection at the boiler.  
This connection should be made with a union so 
that the boiler gas train components and burner 
may be easily removed for service. 

Leaks shall be checked using a soap and water 
solution. 
 

3 

 

After completion of the gas-piping hookup, the 
installation must be checked for leaks.  All joints 
up to the main motorized gas valve shall be 
checked.  A pressure gauge shall be installed 
down stream of the main motorized gas valve 
and up stream of the manual gas shutoff valve in 
the closed position to ensure the main motorized 
valves are not leaking by.  During 
commissioning, the remainder of the gas train 
joints down stream of the main motorized gas