CLEAN BURN CB-3500 series, Руководство оператора

Страница: 30 / 134

Operator's Manual: Models CB-3500 & CB-5000
3-10
Installing the Energy Retention Disc
Installing the Energy Retention Disc in the Combustion Chamber
ATTENTION:
DO NOT fire your furnace without the Energy Retention Disc in place, or combustion
chamber damage will occur. Handle the Energy Retention Disc carefully to avoid damage.
1. Refer to Figure 3A to review the proper positioning of the Energy Retention Disc.
2. Swing open the clean-out door on the front of the furnace to gain access to the combustion chamber.
3. Use a long rod to support the Energy Retention Disc as you guide it into position on the back of the
combustion chamber. The loop on the back of the Energy Retention Disc fits over the hook located on
the back of the combustion chamber.
Closing the Furnace Door
1. After the Energy Retention Disc has been installed, close the furnace clean-out door.
2. Tighten the four (4) lock-down nuts in a criss-cross pattern until all are snug.
CENTRAL FURNACE APPLICATIONS: Installing Ductwork
If you plan to install ductwork on your furnace, it is mandatory that qualified HVAC personnel design and
install the ductwork system to the CFM and SP specifications provided in this manual.
Establish correct duct
size according to the following specifications and use radial bends or turning vanes to allow for proper air flow.
Sizing the Ductwork:
• For Model CB-3500, the outlet on the air discharge is 20" x 20". The main duct (CB-3500)
must initially maintain an outlet size of 20" x 20".
• For Model CB-5000,
the outlet on the air discharge is 24" x 24".
The main duct (CB-5000)
must initially maintain an outlet size of 24" x 24".
Additionally, to ensure proper air flow from the furnace and to prevent damage to related furnace components,
adhere to the following guidelines for installing ductwork with your CB-3500 or CB-5000 central furnace
application.
Installation Guidelines for Ductwork:
• It is essential that qualified HVAC personnel properly design the ductwork for your
furnace and determine the static pressure for your ducting application;
ATTENTION:
Failure to adhere to the static pressure and CFM specifications provided in this
manual may result in damage to the blower motor.
• The ductwork should be installed directly over the opening in the top of the furnace cabinet (i.e.
where the louver assembly would be installed for free air applications.)
• THE ORIFICE PLATE MUST BE REMOVED for all ductwork applications.
• Existing ductwork
at your installation site may NOT be appropriate or meet the specifications for
your furnace installation.