Crestron electronic 2.5 Manual De Usuario

        

Installation & Operation Manual

The Crest vent and air piping can be installed through the roof 
or through a sidewall.  Follow the procedures in this manual for 
the method chosen.  Refer to the information in this manual to 
determine acceptable vent and air piping length.

Pool and laundry products and common household and hobby 
products often contain fluorine or chlorine compounds.  When 
these chemicals pass through the boiler, they can form strong 
acids.  The acid can eat through the boiler wall, causing serious 
damage and presenting a possible threat of flue gas spillage or 
boiler water leakage into the building.

Please read the information given in Table 1A, page 9, 
listing contaminants and areas likely to contain them.  If 
contaminating chemicals will be present near the location of the 
boiler combustion air inlet, have your installer pipe the boiler 
combustion air and vent to another location, per this manual.

If the boiler combustion air inlet is  located 
in a laundry room or pool facility, for 
example, these areas will always contain 
hazardous contaminants.

To prevent the potential of severe personal 
injury or death, check for areas and products 
listed in Table 1A, page 9 before installing 
the boiler or air inlet piping.

If contaminants are found, you MUST:

  • Remove products permanently.  
   

          —OR—

  • Relocate air inlet and vent  

 

    terminations to other areas.

Follow the instructions in Section 1, page 10 of this manual 
when removing a boiler from an existing vent system.

Installation must comply with local 
requirements and with the National Fuel 
Gas Code, NFPA 54 / ANSI Z223.1 for U.S. 
installations or CSA B149.1 for Canadian 
installations.

You must also install air piping from outside to the boiler 
air intake adapter.  The resultant installation is direct vent 
(sealed combustion).

You may use any of the vent/air piping methods covered in 
this manual.  Do not attempt to install the Crest using any 
other means.

 WARNING

 WARNING

 WARNING

When determining equivalent combustion air and vent 
length, add 5 feet (1.5m) for each 90° elbow and 3 feet (.9 m) 
for each 45° elbow. 

EXAMPLE:  20 feet (6 m) of pipe + (4) 90° elbows + (3) 45° 
elbows = 49 equivalent feet (15 m) of piping.

FB 1500

7"

12'

100'

7"

12'

100'

2%

FB 2000

8"

12'

100'

8"

12'

100'

2%

FB 2500

8"

12'

100'

9"

12'

100'

2%

FB 3000

10"

12'

100'

10"

12'

100'

2%

FB 3500

10"

12'

100'

10"

12'

100'

2%

FB 1500

7"

12'

100'

1%

FB 2000

8"

12'

100'

1%

FB 2500

9"

12'

100'

1%

FB 3000

10"

12'

100'

1%

FB 3500

10"

12'

100'

1%

DO NOT mix components from different 
systems.  The vent system could fail, 
causing leakage of flue products into the 
living space.  Use only approved stainless 
steel pipe and fittings.