The same features which permit this boiler to achieve high-efficiency performance make it unlike most other boilers of this general size, so it is important to understand how this boiler operates.
® Thermific Gas-Fired Boiler 1.0 INTRODUCTION Direct vent (ANSI Z21.13) is a closed system method of ducting the combustion air directly from the outside of the building into the inlet compartment of the burner, and a sealed exhaust vent from the combustion chamber to the outdoors.
"TBIG" latest edition. 2.0 SAFETY Refer to the manual for the standard Thermific® Gas- Fired Boiler for safety information applicable to this equipment. Safety information applicable only to the direct vent option appears below. Danger!
Auxiliary Control Panel to operate the inlet damper assembly. The inlet damper assembly and control panel will prevent the flow of cold air through the boiler during the off cycle and prevent freeze up and "off cycle" losses. The use of these two items is optional.
Transition Duct (Sidewall installation shown.) The boiler is equipped with a special collar attached to the air inlet opening on the back of the unit (at the blower housing on Series 700, 1000, and 1200; at the back of the cabinet on Series 1500, 1700 and 2000.).
3.2.5.1 Field Wiring to Auxiliary Control Panel The auxiliary control panel controls the inlet damper (if used). The auxiliary control panel does not have to be mounted on or near the boiler; it can be remotely mounted. Use 16GA MTW Wire for all field wiring. See...
Condensate Drain To sewer trap or condensate pump. At the outlet of the boiler, an adjustable or fixed length (minimum 2 feet for clearance from inlet duct; maximum 3 feet for proper lift) section may be utilized. This section must be secured to the outlet collar by a minimum of 4 sheet metal screws spaced at approximately 90 degree intervals.
® Thermific Gas-Fired Boiler Whichever termination is chosen, it must be double wall vent certified under UL 1738, or ULC-636. When installing a sidewall exhaust system the termination must be backed by a metal plate secured to the wall as shown in the figure.
* Dimension shown above is based on 12" round ductwork. A minimum clearance of 26 inches is required on the left side of the boiler to permit the connection of the air inlet duct to the boiler. Flue Gas Outlet 4' min.
44" Min. * Dimension shown above is based on 12" round ductwork. A minimum of 44 inches is required behind the boiler to fit the inlet and exhaust connections. The figure above suggests a duct arrangement using standard duct pieces that will maintain this minimum clearance of 44 inches.
® Thermific Gas-Fired Boiler When the chart is completed, set up your boiler's combustion to the corresponding information at the temperature relative during the time of the start up. Enter your 100º F % Oxygen operational range. Important: measure combustion air temperature at the unit;...