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Cooling settings: 50YB,YC,YD,YE units* Heating settings: 50YD, YE units* Aux/Emerg Heat settings: 50YB,YC,YD,YE
Version I Version I Version I
69243707 69243707 69243707
Tap HP CFM Tap DELAY Tap AUX CFM
Setting Jumper SW1 SW2 Setting Jumper SW3 SW4 Setting Jumper SW5 SW6
1 1 ON ON 1 1 ON ON 1 1 ON ON
2 2 ON OFF 2 2 ON OFF 2 2 ON OFF
3 3 OFF ON 3 3 OFF ON 3 3 OFF ON
4 4 OFF OFF 4 4 OFF OFF 4 4 OFF OFF
*50YB & YC units use the same settings for *This table not used for 50YB, YC units.
both cooling (normal) CFM and heating CFM.
CFM Adjust settings: 50YB,YC,YD,YE Dehum Mode settings: 50YB,YC,YD,YE
Version I Version I
69243707 69243707
Tap CFM Adj Tap Dehumid
Setting Jumper SW7 SW8 Setting Jumper
TEST 1 ON ON NORM pins 1,2
-
2 ON OFF Dehumid pins 2,3
+ 3 OFF ON
NORM 4 OFF OFF
ON
OFF
DIP Switch
Version II
17B0019N01
DIP Switch
17B0019N01
SW9
Version II
17B0019N01
DIP Switch
Version II
Version II
17B0019N01
Version II
17B0019N01
DIP Switch DIP Switch
Table 6: ECM Board Tap Settings
Y
GGGGR
W
O
Y2
Y1
G
R
C
Y2
Y1
G
O
W
C
R
DH
AL1
A
A
AL1
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
SW9
OFF
ON
G
DEHUM
CFM
TB1
J1
S1
Thermostat
Input LEDs
CFM Counte
1 flash per 1
ECM Motor
Low Voltage
Connector
1/4" Spade
Connections
to CXM or
DXM Board
Thermostat
Connections
Dehumidification
LED
J01
AL
AL
A
G Y1 Y2 O W1 EM C R
G
Y1
Y2
OW1EM
NC C R
Hum
3
2
1
4
3
2
1
4
3
3
2
1
2
2
1
4
3
2
1
4
56
78910
L
LED's
TB01
CFM
Dehumid
Norm
Norm
Test
(–)
(+)
CFM
Adjust
Aux
CFM
HP
CFM
Delay
1/4" Spade
Connections
to CXM or
DXM Board
Thermostat
Input LEDs
CFM Counter
1 flash per 100CFM
ECM Motor
Low Voltage
Connector
Dehumidification
LED
Fan Speed Selection Jumpers
Thermostat
Connections
Figure 18a: ECM Version II Interface Layout Figure 18b: ECM Version I Interface Layout
ECM FAN MOTOR
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