676292-YIM-A-0111
YCCS TEC2603-4 BACnet® MS/TP Networked Multi-Stage Thermostat Controllers Installation Instructions
2
3.
Carefully pull the locking tabs on the right side of
the thermostat controller mounting base and
unlock the Printed Circuit Board (PCB). Open the
PCB to the left as illustrated in Figure 2.
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.
8.
Swing the PCB back to the right and carefully snap
it into the locking tabs on the thermostat controller
mounting base.
9.
Remove the screw terminal blocks that are
attached to a disposable adhesive. Figure 4
illustrates the locations of the screw terminal
blocks on the thermostat controller.
FI
G:
cv
r_
rm
vl
Figure 1: Removing the
Thermostat Controller Cover
Figure 2: Opening the Thermostat Controller PCB
PCB
Locking
Tabs
F
IG
:p
rn
td
_
c
rc
t_
b
rd
Figure 3: Securing the Thermostat Controller
Mounting Base to the Wall
F
IG
:m
n
tn
g
_
b
s
Figure 4: Removing the Screw Terminal Blocks
F
IG
:t
rm
n
l_
b
lc
k
s
