Honeywell Home THM5421R1021 Guia De Instalacion página 2

1
Install thermostat
Prestige/VisionPRO with RedLINK: Mount the thermostat and wire to C and
R terminals of the Equipment Interface Module (EIM), or to a separate 24 volt
transformer (not provided).
NOTE: When the VisionPRO with RedLINK thermostat is used with the EIM,
the relays in the thermostat do not function.
NOTE: RedLINK FocusPRO are battery powered and do not have R and C
terminals.
2
Install equipment interface module
Use screws
& anchors as
appropriate for
the mounting
surface. Mount
the EIM near the
HVAC equipment,
or on the
equipment itself.
NOTE: If you install more than one
thermostat and EIM, the EIMs must be at
least 2 feet apart.
NOTE: If you are installing discharge and
return air sensors, refer to the mounting
instructions in the Alerts and Delta T
Diagnostics Installation Instructions packed
with the Prestige IAQ kit.
NOTE: RedLINK FocusPRO should use a
return sensor to S1 only. Do not wire a supply sensor.
If an EIM is mounted inside a metal cabinet, it is recommended to use a
THM4000R1000 Wireless Adapter for extended wireless range. Mount the
Wireless Adapter outside the metal cabinet and connect to the ABCD terminals
at the EIM.
M39126
M34048A
2
CONVENTIONAL
C
S1
S1
K
W
RC
Y
R
G
U1
U1
W2
U2
Y2
U2
A
HEAT PUMP
M38709
WIRELESS
ADAPTER
THM1234
POWER
WIRELESS SETUP
CONNECTED
CONNECT
S1
S1
O/B
Y
G
AUX
-E
Y2
L/A
M39127
Strip 1/4"
insulation,
then insert
wires as
shown.
EIM
A
B
C
D
M39124