FMS-2000M
LIT-12013578
26
1. Shut down the FMS-1655M unit and remove the monitor from the wall.
2. Remove the back cover from the display enclosure.
3. Unplug the 4-position terminal block from the display circuit board, with the wires from the interface cable still connected. If you use
a BACnet network, unplug the 3-position terminal block.
4. Prepare the opening in the wall to mount the display unit. For instructions, see
Mounting the FMS-2000M monitor for a retrofit
application
.
5. Pull the existing FMS-1655M monitor cables through the opening in the wall.
6. At the back of the FMS-2000M monitor, remove the 4-position terminal block plug from the pin header. If you use a BACnet
network, then remove the 3-position terminal block as well.
7. Connect the 4-position terminal block at the end of the interface cable to the 4-pin header at the back of the FMS-2000M display. If
you use a BACnet network, connect the networking cable to the 3-pin header. See the figure above.
8. To complete the installation, see
Mounting the FMS-2000M monitor for a retrofit application
.
Upgrading an FMS-1655M monitor to an FMS-2000M monitor
Callout
Description
1
FMS-2000M monitor
2
FMS-1655M remote pressure sensor
3
Red display power wire. If the sensor includes a 3 position terminal block with display power installed, remove the wire and connect it
at the +Vin terminal of the 9 position terminal block as shown.
4
Display-to-sensor interface cable. Supplied cable: 10 ft (3.04 m)
17
1
U2
33
49
7
5
1
CN1
S2
SW1
+V
in
-V
in
V
o
Io
+V
s
IN
G
N
D
-
+
RS485
2
1
4
3
AD
D
R
6
JP
4
LE
D
1
LE
D
2
R
U
N
PW
R
JP
5
CN3
5
JP2
24 VAC input
from power source
To BAS
Network
-
+
22 AWG stranded 3-wire
twisted pair, shielded
Green
White
Black
Red
Green
White
Black
Re
d
}
Power input
P1
P2
BACnet MS/TP
Dis
pla
y_
PW
R
NC = No Connection
NC
NC
+
-
+
-
+
-
R
EF
24
V_
IN
D
SP
LY
R
S4
85
BA
C
ne
t
M
S/
TP
Landscape
P
o
rt
ra
it
Ref.
Figure 20: Wiring the FMS-2000M to an FMS-1655M remote pressure sensor
Table 16: Ugrade wiring diagram callouts