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GMS8 Installation Manual

ManualsBrandsGOODMAN ManualsForced Air Furnaces80% AFUE 80,000 BTU Multi-Positional Single Stage Multi-Speed Natural Gas Furnace with 21 in. Cabinet
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HORIZONTAL I NSTALLATIONS
Filters must be installed in either the central return register or in
the return air duct work.
S
EQUENCE
OF
O
PERATION
(I
NTEGRATED
I
GNITION
C
ONTROL
)
Refer to Timing Charts for sequencing.
NOTE: Dip switch positions referenced in this section applies to
(GM E8, AM EH8, GDH8, ADSH8 & (A/ G)M H8 M ODELS ONLY).
POWER U P
• 115 VAC power applied to furnace.
• Integrated ignition control performs internal checks.
• Integrated ignition LED will light.
• Integrated ignition control monitors safety circuits
continuously.
• Furnace awaits call from thermostat.
Consider installing an air cleaner with deep-pleated media filter at the time of furnace installation. A deep-pleated filter with a MERV
rating of 8 (minimum) will often provide better filtration to protect equipment and the air distribution system than a standard 1" filter
and often has lower static pressure loss than a 1" filter. Also a deep-pleated filter will typically require less frequent replacement
intervals. Avoid using highly restrictive 1" filters which produce static pressure loss greater than .25" W.C. In some installations the
minimum filter size required (consult filter sizing chart) will not lend itself to a filter installation on the side of the furnace. The
installation of a centrally installed air cleaner cabinet or a return duct filter installation may offer more practicality.
Clean Comfort™ brand M ERV 11 air cleaners have 5¼” media filters and are available in the following configurations. Consult your
distributor for information on our complete line of IAQ Clean Comfort™ products.
Air cleaner installation location M aximum Heating Airflow Filter (M edia) Dimensions Part Number
Air
Cleaner
Family
Si de or bo tto m return 1200 CFM 16 in X 20 in x 5¼" AM 11-1620-5
Si de or bo tto m return 1600 CFM 16 in X 25 in x 5¼" AM 11-1625-5
Si de or bo tto m return 1600 CFM 20 in X 20 in x 5¼" AM 11-2020-5
Si de or bo tto m return 2000 CFM 20 in X 25 in x 5¼" AM 11-2025-5
Si d e ret urn
(fo r 2 se pa ra te re t urns)
Si de re tu rn (Ri ght angl e) 2000 CFM 20 in X 25 in x 5¼" AM11-2025-5RA AM11-5RA
Bottom retu rn (pl atform ) 2000 CFM 20 i n X 25 i n x 5¼" AM11-2832-5PP
Bottom retu rn (pl atform ) 2000 CFM 20 i n X 25 i n x 5¼" AM11-2843-5PP
AM11-5
2 X 1600 CFM 2, 16 in X 25 i n x 5¼" AM 11-3225-5 AM11-3225
AM11-5PP
AM 11-5 AM 11-5RA AM 11-5PP
Family Family Family