Wiring - Trane TZON1050AC52ZA Installation Manual

4.3 Mounting
Follow these steps to mount the 1050 Control to the wall.
1. Turn OFF all power to heating and cooling equipment.
2. If an existing thermostat is being replaced:
a. Remove the existing thermostat from the wall.
b. Record color and terminal marking of each wire.
c. Disconnect the wires from the existing thermostat
being careful not to allow them to fall back into
the wall.
3. Route the wires through the opening on the Sub-base.
4. If using a wired Internet connection, route the Ethernet
cable through the opening. See Figures 2 and 3.
5. Place the Sub-base against the wall in the desired
location and mark the wall through the mounting
holes.
6. Drill the holes in the wall where marked.
7. Mount the Sub-base to the wall using included
mounting screws and drywall anchors. For stability,
three screws are recommended. Make sure all wires
extend through the Sub-base. See Figure 3.
FIGure 2. MARK THE MOUNTING HOLES
Optional Mounting Hole
Thermostat
Wires
Mounting Hole
18-HD80D1-3-EN
Mounting Hole
Ethernet
Cable
Optional Mounting Hole
FIGure 3. MOUNT THE SUB-BASE TO THE WALL
Thermostat

Wiring

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. If stranded thermostat cable is used, one
or more strands will have to be cut to allow the cable
to fit connector. Solid conductor wire larger than 18 ga
will not fit the connector.
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 1050 Control can cause improper
operation.
4. Attach the 1050 Control to the Sub-base.
5. Turn ON power to the heating and cooling equipment.
XL 1050
W a
l l
Ethernet
Wiring
5