Crestron electronic 3 Manual De Usuario

        

Installation & Operation Manual

•  Local, state, provincial, and national codes, laws, 

regulations, and ordinances.

•   National Fuel Gas Code, NFPA 54 / ANSI Z223.1 – 

latest edition.

•  Standard for Controls and Safety Devices for 

Automatically Fired Boilers, ANSI/ASME CSD-1 - 
latest edition, when required.

•   National Electrical Code, NFPA 70 - latest edition.
•   For Canada only:  CSA B149.1 Installation Code, 

CSA C22.1 Canadian Electrical Code Part 1 and any 
local codes.

 WARNING

This appliance is certified as an indoor appliance.  
Do not install the appliance outdoors or locate 
where the appliance will be exposed to freezing 
temperatures or to temperatures that exceed 100°F 
(37.8°C).

Do not install the appliance where the relative 
humidity may exceed 93%.  Do not install the 
appliance where condensation may form on 
the inside or outside of the appliance, or where 
condensation may fall onto the appliance.

Failure to install the appliance indoors could result 
in severe personal injury, death, or substantial 
property damage.

The Crest gas manifold and 
controls met safe lighting and other 
performance criteria when the boiler 
underwent tests specified in ANSI 
Z21.13/CSA 4.9 – latest edition.

1.  Check for nearby connection to:

• System water piping
• Venting connections
• Gas supply piping
• Electrical power

2.  Locate the appliance so that if water connections 
 

should leak, water damage will not occur.  When 

  such locations cannot be avoided, it is 
 

recommended that a suitable drain pan, adequately 

 

drained, be installed under the appliance.  The 

 

pan must not restrict combustion air flow.  Under no 

 

circumstances is the manufacturer to be held 

 

responsible for water damage in connection with 

 

this appliance, or any of its components.

3.  Check area around the boiler.  Remove any 
  combustible materials, gasoline and other 
 flammable 

liquids.

This appliance requires a special venting system. 
Use only the vent materials specified in this 
manual. Failure to follow all instructions can 
result in flue gas spillage and carbon monoxide 
emissions, causing severe personal injury or death.  

 WARNING

Failure to keep boiler area clear 
and free of combustible materials, 
gasoline, and other flammable 
liquids and vapors can result in 
severe personal injury, death, or 
substantial property damage.

4.  The Crest must be installed so that gas control 

system components are protected from dripping or 
spraying water or rain during operation or service.

5.  If a new boiler will replace an existing boiler, check 

for and correct system problems, such as:

• System leaks causing oxygen corrosion or heat 

exchanger cracks from hard water deposits.

• Incorrectly-sized expansion tank.
• Lack of freeze protection in boiler water causing 

system and boiler to freeze and leak.

6.  The appliance must be installed on a level floor, 
 

both front to back and side to side, for proper 

 condensate 

drainage.

 -   Hot water pipes ........................................................  1/4"
 -   Sides ..........................................................................  0"
 -   Rear ...........................................................................  0"
 -   Front .........................................................................  0"
 -   Top ...........................................................................  0"
 -   Floor ....................................................... Combustible
-   Vent pipe - Follow special vent system manufacturer’s instructions

 -   Sides ..........................................................................  24" 
-   Rear ...........................................................................  24"
 -   Front .........................................................................  30"
 -   Top ...........................................................................  24"

 WARNING

 

1/4" (6 MM) MINIMUM CLEARANCE
AROUND HOT WATER PIPES 

VENTILATING* 
AIR OPENING 

VENTILATING*
AIR OPENING  

CLOSED DOOR

24"
LEFT

24"

RIGHT

24"

TOP

30"

FRONT

24"

REAR

If you do not provide the recommended service 
clearances shown, it may not be possible to service 
the boiler without removing it from the space.