White Rodgers 1F98EZ-1621 Emerson Blue Wireless Easy Install Thermostat System Instrução De Instalação
4
**T
o use the HV
A
C
transformer to power humidification/dehumidification switch HM/DHM
switches to “SYS
” position:
-
Connect humidifier to HM
Connect humidifier to HM
-
Connect dehumidifier to DHM
Connect dehumidifier to DHM
If humidifier or dehumidifier has a separate transformer switch HM or DHM switch to “DRY” position
:
-
Connect humidifier to HM and HM
Connect humidifier to HM and HM
2 (o
r)
r)
-
Connect dehumidifier to DHM and DHM
Connect dehumidifier to DHM and DHM
2
* For two transformer system, cut and tape off one transformer
. If
transformer safety circuits are only in one of the systems, remove
the transformer of the system with NO safety circuits. If required,
replace remaining transformer with a
75
V
A
Class II transformer
. After
disconnecting
one transformer
, the two commons must be jumpered
together
.
DHM2 DHM
HM2 HM
L
SYSTEM
W
/E
W
2
Y
Y
2
G
O
/B
POWER
RC
Status/Fault
7-Segment LED
LED On/Off
Return Air Duct
Sensor Socket
Connect
**HM Switch
**DHM Switch
Outdoor Condenser
(A/C or Heat Pump)
Y
Y2
O/B
C
(if Heat Pump)
DHM
DHM
2
HM
2
W/E
W
2
Y
Y
2
G
O/B
L
HM
Indoor Air Handler/Furnace Connection
s
Heat Stage
1 - Indoor Unit or Furnace (Conventional Gas, Oil, Elec) or HP
1
Stage Aux/Em
Heat Stage
2
- Indoor Unit or Furnace (Conventional Gas, Oil, Elec) or HP
2 Stage Aux/Em
Stage
1 - Outdoor Condenser (Conventional or HP
)
Stage
2 - Outdoor Condenser (
Conventional or HP)
Fan Relay
Changeover Relay Heat Pump
Comfort Alert Connection
R
C
24
VAC Transformer Hot
24
VAC Transformer Neutral
VAC Transformer Neutral
Dehumidification Relay / Connection
Dehumidification Relay / Connection (for dry contacts)
Humidification Relay / Connection
Humidification Relay / Connection (for dry contacts)
Return Air Sensor (RAS) Required
W/E
W
2
Y
Y
2
G
O/B
L
HM
HM2
DHM
SYS
DRY
SYS
DHM
2
RC
RH
R
C
*HVAC Transformer
24
VAC
HO
T
NEUTRAL
120
VAC
VAC
DRY
Connect Push
Button Switch
LED Push
Button Switch
R and C
from HVAC
Terminal Strip
or System
Transformer
Status LED
EQUIPMENT CONTROL WIRING TO HVAC EQUIPMENT