Johnson Controls TEC2604-4 Installation Instructions Manual page 2

Note: Allow for vertical air circulation to the
TEC2604-4 or TEC2604-4+PIR Thermostat Controller.
To install the thermostat controller:
1. Use a Phillips-head screwdriver to remove the
security screw if it is installed on the bottom of the
thermostat controller cover.
Note: Normally, the security screw is packaged
separately in a plastic bag with the thermostat
controller. Skip this step if the screw is not installed
on the bottom of the cover.
2. Pull the bottom edge of the thermostat controller
cover and open the thermostat controller as
illustrated in Figure 1.
Note: PIR Models have a wiring connection
between the cover and the Printed Circuit Board
(PCB). This connection allows for proper wiring of
the occupancy sensor. Carefully remove the wiring
connection from the PCB by pulling up on the
connector block. Do not attempt to remove the
connector block by pulling on the wires.
Figure 1: Removing the Thermostat Controller
Cover (TEC2604-4+PIR Model Shown)
2 TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat
Controllers Installation Instructions
3. Carefully pull the locking tabs on the right side of
the thermostat controller mounting base and
unlock the PCB. Open the PCB to the left as
illustrated in Figure 2.
Figure 2: Opening the Thermostat Controller PCB
4. Pull approximately 6 in. (152 mm) of wire from the
wall and insert the wire through the hole in the
thermostat controller mounting base.
5. Align the thermostat controller mounting base on
the wall and use the base as a template to mark
the two mounting hole locations.
6. Position the thermostat controller mounting base
so that the arrow on the base points upward to
indicate the top of the thermostat controller.
Note: If you need to install the thermostat on an
electrical junction box, use 2-1/2 x 4 in.
(63 x 101 mm) square boxes with mud ring covers,
and avoid smaller 1-1/2 x 4 in. (38 x 101 mm)
square or 3 x 2 in. (76 x 51 mm) boxes. This
procedure ensures you have enough space for
cabling and end-of-line devices, if needed.
Note: For surface-mount applications, use
durable mounting hardware such as Molly bolt
anchors that cannot be easily pulled out of the
mounting surface.
7. Secure the base to the wall surface using two
mounting screws as illustrated in Figure 3.
Note: Be careful not to overtighten the mounting
screws.
PCB
Locking
Tabs