L2 WIFI WATER SENSOR AND SWITCH
S3
S3
S4
S4
1
The R, C, W, Y, G, etc. wires (not shown) match as normal from EIM
to HVAC.
2
The L2 can be wired to any set of S (S1, S2, S3, S4) on EIM. The ISU
settings on the thermostat allow you to choose which S terminals are
used for water leak or full drain pan alert.
3
T10+ with EIM allows you to lock out heat and cool for a full drain pan or lock out humidifier for a water leak alert. Prestige
with EIM allows you to lock out heat and cool for a system shut down alert or lock out humidifier for a water leak alert.
4
T10+ and EIM kits
YTHM1004R3000–(T10+ thermostat, EIM, RATS/DATS, wireless indoor sensor)
YTHM1004R3001–(T10+ thermostat, EIM, RATS/DATS, wireless outdoor sensor, wireless indoor sensor)
Prestige and EIM kits
YTHX9421R5085WW–(Prestige thermostat, EIM, RATS/DATS)
YTHX9421R5101WW–(Prestige thermostat, EIM, wireless outdoor sensor, RATS/DATS)
YTHX9421R5127WW–(Prestige thermostat, EIM, redlink gateway, RATS/DATS)
YTHX9421R7001WW–(Prestige thermostat, EIM, redlink gateway, wireless outdoor sensor, wireless indoor sensor, RATS/DATS)
5
When green and orange wires are used, set the dry contact alert on thermostat to normally-closed. The installer could
alternately use the Green and White wires and set the dry contact alert as normally-open.
Fig. 6. L2 for water leak alert or full drain pan alert on T10+ with EIM or Prestige with EIM.
This could be used to detect water overflow from a
clogged drain line.
Fig. 7. L2 locks out DR65, DR90, or DR120 dehumidifier when water is detected.
33-00631EFS—02
1
Orange
S1
S1
S2
Green
S2
2
3
4
L1
(hot)
R
24 VAC
L2
C
24 volt
transformer
1
R and DHUM from dehumidifier go to the dehumidity control as
normal.
5
Red
White (not used)
Black
L2
1
Float DHUM
R
Fan C
Orange
Green
Red
Black
L2
4
R
C
HVAC
MCR39158
White (not used)
MCR39159