850 Communicating Wi-Fi Comfort Control
11-HD14D1-9-EN 5
6. Place the Sub-base against the wall in the desired
location and mark the wall through the mounting
holes. If you are using a wired Internet connection, be
sure to mark the cutout for the RJ-45 connector (see
Figure 2 on page 5).
7. Drill the holes in the wall where marked.
If you are using a wireless Internet connection, skip to
step 9.
8. When using a wired Ethernet connection, follow these
step and refer to Figure 3 on page 5.
a. With the Sub-base and RJ-45 holder oriented as
shown, press the holder into the Sub-base.
b. Slide the holder to the right so it snaps in place.
c. Secure the holder with the provided screw.
d. Insert the RJ-45 Connector into the RJ-45
holder until it snaps into place.
9. Mount the Sub-base to the wall using included
mounting screws and drywall anchors. An optional
mounting hole is available for more secure mounting,
if needed. Make sure all wires extend through the hole
in the Sub-base see Figure 4 on page 5.
4.4 Wiring
1. Adjust the length and position of each wire to reach
the proper terminal on the connector block of the
Sub-base. Strip 1/4” of insulation from each wire.
Do not allow adjacent wires to short together when
connected.
2. Match and connect control wires to the proper
terminals on the connector block. Refer to Field Wiring
Diagrams included in this document.
3. Push excess wire back into the wall and seal the
hole to prevent air leaks. NOTE: Air Leaks in the wall
behind the Control can cause improper operation.
4. Attach the Control to the Sub-base.
5. Turn ON power to the heating and cooling equipment.
B/C R
D ODT ODT RS1 RS1
Mounting Holes
Optional Mounting Hole
Wall
Thermostat Wiring
Ethernet
Wiring
Thermostat
Wires
RJ-45
Plug
RS1 RS1 ODT ODT W3 W2 W1 BK
G
Y2 Y1
O B/C RH RC AUX2 AUX2 AUX1 AUX1
Mounting Holes
Optional Mounting Hole
Wall
Thermostat Wiring
Ethernet
Wiring
Thermostat
Wires
RJ-45
Plug
FIGure 2.
MARK THE MOUNTING HOLES
FIGure 3.
ATTACH RJ-45 HOLDER TO SUB-BASE
This side mounts to wall
Wall
a
b
c
d
FIGure 4.
MOUNT THE SUB-BASE TO THE WALL
