Bottom Return - Goodman GKS9 Technical Manual

PRODUCT DESIGN
Thermostats:
NOTE: Complete lineup of thermostats can be found in the Thermostat Specification Sheets.
Filters:
Filters are required with this furnace and must be provided by the installer. The filters used must comply with UL900 or
CAN/ULCS111 standards. Installing this furnace without filters will void the unit warranty.
This furnace has provisions for the installation of return air filters at the side and/or bottom return. The furnace will
accommodate the following filter sizes depending on cabinet size:
Cabinet
Width
Refer to Minimum Filter Area tables to determine filter area requirement. NOTE: Filters can also be installed elsewhere in
the duct system such as a central return.
COOLING AIRFLOW REQUIREMENT (CFM)
600 800
0453_X* 376* 384
0703_X* --- 564*
0704_X* --- ---
0904_X* --- ---
0905_X* --- ---
1155_X* --- ---
*Minimum filter area dictated by heating airflow requirement.
Disposable Minimum Filter Area (in
[Based on a 300 ft/min filter face velocity]
10
SIDE RETURN
Approx.
Nominal
Flow Area
Filter Size
(in.) (in.)
(in
All 16 x 25 x 1
1000 1200 1400 1600
480 576 --- ---
564* 564* 672 ---
564* 564* 672 768
752* 752* 752* 768
--- 752* 752* 768
--- 940* 940* 940*
Upflow Filters

BOTTOM RETURN

Cabinet
Width
2
(in.)
)
400 17-1/2
21
24-1/2
2000
0453_X*
---
0703_X*
---
0704_X*
---
0904_X*
---
0905_X*
800
115_X*
800
*Minimum filter area dictated by heating airflow requirement.
2 )
Permanent Minimum Filter Area (in
[Based on 600 ft/min filter face velocity]
Approx.
Nominal
Flow Area
Filter Size
2
(in.)
(in )
14 x 25 x 1 350
16 x 25 x 1 400
20 x 25 x 1 500
COOLING AIRFLOW REQUIREMENT (CFM)
600 800 1000 1200
188* 192 240 288
--- 282* 282* 282*
--- --- 260* 260*
--- --- 376* 376*
--- --- --- 376*
--- --- --- 470*
1400 1600 2000
--- --- ---
336 --- ---
336 384 ---
376* 384 ---
376* 384 480
470* 470* 480
2 )