ZFR1810 Wireless Field Bus Coordinator Installation Instructions
6
Wiring
Wiring Considerations and Guidelines
Follow these guidelines when wiring a
ZFR1810 Coordinator:
•
Route the wires at least 50 mm (2 in.) away from
the vent slots on the sides of the
ZFR1810 Coordinator housing.
•
Provide slack in the wires. Keep wires routed
neatly around the ZFR1810 Coordinator to
promote good ventilation, Light-Emitting Diode
(LED) visibility, and ease of service.
Power Input and Communication
Wiring for power input and communication uses one of
two methods: terminal blocks or the FC Bus
jack.
Terminal Blocks - Power
Use a 24 VAC nominal, 50/60 Hz, Class 2 power
supply to power the ZFR1810 Coordinator. See Table 4
for recommended Johnson Controls® transformers.
Connect the 24 VAC supply power wires from the
transformer to the HOT and COM terminals of the
24 V~ three-position screw terminal pluggable block as
shown in Figure 4 and Figure 1. The middle terminal is
not used.
Note:
Transformers not manufactured by
Johnson Controls may have different color wires.
Follow the manufacturer’s instructions when mounting
and wiring transformers.
Terminal Blocks - Communication
Connect the communication wires from the NAE or
NCE to the four-position screw terminal pluggable
block, as shown in Figure 5 and Figure 1.
FC Bus Jack - Power and Communication
Use a six conductor SA Bus RS-485 cable with
RJ12
connectors to connect the ZFR1810 Coordinator
to the FC Bus connector (FC/SA BUS IN)
on the NAE
or NCE supervisory engine. This connection provides
both power and communication to the ZFR1810
Coordinator.
IMPORTANT:
Do not connect supply power to the
ZFR1810 Coordinator before finishing wiring and
checking all wiring connections. Short circuits or
improperly connected wires may result in permanent
damage to the ZFR1810 Coordinator.
IMPORTANT:
Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations. The ZFR1810 Coordinator is a
low-voltage (less than 30 VAC) device. Do not
exceed the ZFR1810 Coordinator’s electrical
ratings.
IMPORTANT:
Prevent any static electric discharge
to the ZFR1810 Coordinator. Static electric
discharge can damage the ZFR1810 Coordinator
and void any warranties.
IMPORTANT: Do not
connect the ZFR1810
Coordinator to the power supply before setting the
PAN OFFSET switches.
Figure 4: ZFR1810 Coordinator 24 VAC Power
Supply Connection
ZFR1810
Supply Power
Terminal Block
ZFR1810
Supply Power
Terminal Block
Plug
Wires from
Johnson Controls
24 VAC, Class 2
Power Transformer
Brown Wire
(COM)
Orange Wire
(24 VAC)
F
IG
:Z
F
R
1
8
1
0
_
P
w
r_
P
rt
24V~
C
O
M
H
O
T
C
O
M
Figure 5: ZFR1810 Coordinator Communication
Connection
FC/SA BUS
Terminal
Block
FC/SA BUS
Terminal Block
Plug
F
IG
:Z
F
R
1
8
1
0
_
F
C
_
S
A
_
B
s
+
-
A
C
O
M
S
H
L
D
S
H
L
D
A
C
O
M
+
(MS/TP)
FC/SA Bus
-
= + - COM
