Download DAKA 621 Instruction manual

FIG. 1 – Typical Installation As Supplementary “Add-On” Furnace
NOTE: Supply plenum must be metal.
Primary Furnace
Warm Air Plenum
EXAMPLE
6” Minimum Listed Type HT
Chimney serving DAKA
Furnace Only
Cold Air
Return
90° Elbows installed
inside plenum
(See FIG. 5 for alternatives)
Location of Fixed
Back Draft Damper to
be installed on
Primary Furnace
Twin 8” round
warm air outlet
pipes
Barometric Regulator
Primary Furnace
(natural gas, electric, oil)
Minimum 12” Round Cold
Air Return Pipe Connected
To Filter Box Inlet
FIG. 2 – Typical Independent Central Furnace Installation
NOTE: Supply plenum must be metal.
EXAMPLE
Page 11 of 15
DAKA Furnace Model 621
November 2009 Edition
Revision 1: June 2011