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American Standard AUD2B060AFV32A Installer's Manual Page 18

Variable speed, 2-stage, 80% upflow/horizontal gas-fired furnaces, fan assisted combustion system with whole house air cleaner.
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Installer's Guide
OUTDOOR UNIT NO. 1
(NO TRANSFORMER)
SEE NOTE 3
OUTDOOR UNIT NO. 2
(NO TRANSFORMER)
B/C
HUMIDISTAT HOOKUP
If an optional Humidistat is to be connected between
"R" and "BK", the factory installed jumper between "R"
and "BK" on the circuit board must be cut. If an op-
tional Humidistat is used, the jumper must also be cut
when applying an airflow command signal to the "BK"
input such as with the variable speed single-zone and
multi-zone system controller. On single speed cooling
only/ non-heat pump systems, jumper "Y" to "O" for
proper operation of the delay profiles and the Humidis-
tat. For two compressor or two speed systems, jumper
"Ylo" to "O".
18
FIELD WIRING DIAGRAM FOR VARIABLE SPEED 2 STAGE FURNACE
2 STAGE HEATING, 2 STAGE COOLING
(OUTDOOR SECTION WITHOUT TRANSFORMER)
W14
SEE
NOTE 7
SEE
NOTE 6
B/C
TO 115 V 1 PH.,
60 HZ., POWER
SUPPLY PER
LOCAL CODES
HUM SEE
NOTE 5
FIGURE 13
The factory installed jumper between
"R" and "BK" on the circuit board
must be cut if an optional Humidistat
is installed.
From Dwg. B342018 Rev. 0
18-CD24D1-2

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