Installation Manual

28
BLOWER PERFORMANCE DATA
Table4.R6GPSeriesAlternateAccessoryBlowerDrives
This equipment is outfitted with a belt driven blower assembly in order to accommodate a large variety of duct
configurations and airflow selections. The blower has been factory inspected for proper alignment, operation and
rotational direction prior to the drive motor being situated in the shipping position. The blower drive belt is located
with these instructions and must be installed by the service technician. For a more detailed explanation of belt driven
blower drives and the operation of their components please refer to any of the installation instructions listed below
for the high static drive kits.
The factory standard drive installed in these units has been set to deliver 400 Cfm/ton at an External Static Pressure
(ESP) of 0.25-0.30 in-Wg. Tables 5-10 show the full blower curves of these drive configurations and can be utilized
to easily set the adjustable motor sheave for alternate configurations. Refer to the Legend below for a description of
the table information. Once a sheave setting has been made, always inspect the blower amp draw to ensure that it
is less then the service factor amps listed on the motor. For systems that include a large number of accessories or
have very restrictive duct systems, alternate drive kits are available, refer to Table 4 below for the applicable kits. The
full blower curves for the HSD kits can be found in the applicable kit installation instructions or in the unit technical
service literature.
Forunitsbeingplacedintoserviceconguredforhorizontalowoperation,alwaysusetheapplicableNORDYNE
accessory kit for the conversion. Refer to the technical service literature for kit part numbers. These kits may require
that the over-temperature limit controls be updated for this mode of operation.
3862
1159
Indicates a recommended unit operational point
3.03
3493
Indicates an allowable setting that is not recommended for unit operation
†
† These operational points should be carefully examined by the installer for proper unit setup and heater operation if used.
1017
2.07
Indicates a setting that is not permitted for unit operation
Unit Model #
Motor
Hp
E.S.P. Range
(in-Wg)
Blower Rpm
Range (DF)
Downflow
Kit
Blower Rpm
Range (HF)
Horizontal
Kit
-072C-100C
1.5 Hp 0.7 - 1.6
916 - 1159 920609 915 - 1154 920609
-072C-166C 917 - 1186 920609 930 - 1223 920613
-072D-100C 916 - 1159 920560 915 - 1154 920560
-072D-166C 917 - 1186 920560 930 - 1223 920618
-090(C/D)-200Ca 2 Hp 0.1 - 1.9 878 - 1208 921481 928 - 1227 921655
-120(C/D)-235Ca 2 Hp 0.1 - 1.4 651 - 916 921645 653 - 917 921645
NOTE:RefertoR6GPTSLorAccessoryKitInstallationInstructionsforactualblowercharts.