Goodman GRL SERIES, Installation Instructions Manual

Page: 44 / 52

44
TABLE 11
90 PLUS AIR FLOW PERFORMANCE
CFM @ ESP
MODEL BLOWER/
SPEED
MOTOR HP .1 .2 .3 .4 .5 .6 .7
UPFLOW MODELS
(-)GRL-04 11 x 7 /
1
/
2
LOW 805 780 760 720 685 645 605
*M-LO 920 885 850 810 775 730 690
M-HI 1140 1110 1085 1045 1010 950 890
HIGH 1360 1320 1280 1235 1195 1140 1080
(-)GRL-06 11 x 7 /
1
/
2
LOW 770 740 710 675 645 605 570
*M-LO 880 845 815 790 760 715 670
M-HI 1060 1025 990 960 925 880 835
HIGH 1260 1215 1175 1135 1100 1040 985
(-)GRL-09 12 X 11 /
3
/
4
LOW 1235 1210 1185 1150 1120 1075 1035
M-LO 1490 1465 1440 1405 1375 1315 1255
*M-HI 1720 1670 1620 1600 1580 1520 1460
HIGH 2100 2050 2000 1955 1910 1825 1745
* Factory-Set High Heating speed
A = 17
1
⁄
2
" Cabinet Size
B = 21" Cabinet Size
NOTE: Units tested with filters in place.
!
WARNING
GAS FURNACE (DIRECT
DRIVE) INSTRUCTIONS
FOR CHANGING BLOWER
SPEED
DISCONNECT THE ELECTRICAL
SUPPLY TO THE FURNACE
BEFORE ATTEMPTING TO
CHANGE THE BLOWER SPEED.
FAILURE TO DO SO CAN CAUSE
ELECTRICAL SHOCK RESULTING
IN PERSONAL INJURY OR DEATH.
The blower motor is wired for blower
speeds required for normal operation
as shown.
If additional blower speed taps are
available (leads connected to “M1”
and “M2” on the IFC), speeds may be
changed if necessary to fit
requirements of the particular
installation. Reconnect the unused
motor leads to “M1” or “M2.” Check
motor lead color for speed
designation.
Heating speeds should not be
reduced where it could cause the
furnace air temperature to rise to
exceed the maximum outlet air
temperature specified for the unit.
IMPORTANT: Any combination of
motor taps to the IFC can be used
provided the temperature rise is
within the specified range when in
high or low heat and that there is
enough airflow in the cooling mode.
When changing the motor tap
speeds, the temperature rise must be
checked on both heat speeds and
temperature drop in cooling must be
checked again after the change is
made to ensure that the temperatures
are within the required specified
ranges.
MAINTENANCE
THESE INSTRUCTIONS ARE
INTENDED AS AN AID TO
QUALIFIED SERVICE
PERSONNEL FOR PROPER
INSTALLATION, ADJUSTMENT
AND OPERATION OF THIS UNIT.
READ THESE INSTRUCTIONS
THOROUGHLY BEFORE
ATTEMPTING INSTALLATION
OR OPERATION. FAILURE TO
FOLLOW THESE INSTRUCTIONS
MAY RESULT IN IMPROPER
INSTALLATION, ADJUSTMENT,
SERVICE OR MAINTENANCE,
POSSIBLY RESULTING IN FIRE,
ELECTRICAL SHOCK, CARBON
MONOXIDE POISONING,
EXPLOSION, PROPERTY
DAMAGE, PERSONAL INJURY
OR DEATH.
TABLE 12
FILTER SIZES
UPFLOW FILTER SIZES
FURNACE INPUT BOTTOM SIDE
QUANTITY
WIDTH MBTUH SIZE SIZE
17
1
/
2
" 45, 60 15
3
/
4
" X 25" 15
3
/
4
" X 25" 1
21" 90 19
1
/
4
" X 25" 15
3
/
4
" X 25" 1
!
WARNING