Honeywell EXCEL 10 Installation Instructions Manual page 5
Fan coil unit
controllers
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Also See for EXCEL 10:
- Quick manual (13 pages) ,
- Installation instructions manual (8 pages) ,
- Installation instructions (4 pages)
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EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS
Configuration of the Wall Module's LED / LCD
When either a T7460 or a T7560 Wall Module has been
hardwired to the W7754, the module's LED can be configured
(using Honeywell's LNS plug-in) to provide information about,
e.g., overrides or effective occupancy modes. The LCD of a
T7560 Wall Module can likewise be configured to display such
information.
Configuration of LED to Display Info on Overrides
The wall module's LED can be configured to indicate if an
override has been activated by either the wall module's over-
ride button being pushed or because the controller has re-
ceived a network command. Specifically:
If the wall module's LED is OFF, then no override (from
the wall module or the L
effect.
If the wall module's LED is ON continuously, the override
button or a network command has placed the controller
into the "occupied" or "override" mode (but if the override
button is again pushed or if a cancellation network
command is received or if the override time expires, the
controller will return to its scheduled occupancy mode).
If the wall module's LED flashes once per second, the
override button or a network command has placed the
controller into the "unoccupied" mode (however, if the
override button is again pushed or if a cancellation net-
work command is received, the controller will return to its
scheduled occupancy mode).
If the wall module's LED flashes twice per second, a
network command has placed the controller into either the
"standby" or the "occupied" mode.
If the wall module's LED flashes four times per second, the
controller is responding to a network management "wink"
command.
Configuration of LED to Display Info on Occupancy Mode
The wall module's LED can also be configured to indicate the
effective occupancy mode of the W7754. Specifically:
If the wall module's LED is OFF, the controller is in the
"unoccupied" mode.
If the wall module's LED is ON, the controller is in the
"occupied" mode.
If the wall module's LED flashes once per second, the
controller is in the "standby" mode.
If the wall module's LED flashes four times per second, the
controller is responding to a network management "wink"
command.
Configuration of LCD to Display Info on Occupancy Mode
The T7560 Wall Module's LCD can be configured to display
various symbols to indicate the effective occupancy mode of
the W7754. Specifically:
If
is displayed continuously, the controller is in the
"occupied" or "override" mode; if it flashes, the given mode
has been overridden.
If
is displayed continuously, the controller is in the
"standby" mode; if it flashes, the "standby" mode has been
overridden.
W
network) is currently in
ON
ORKS
If
is displayed continuously, the controller is in the
"unoccupied" mode; if it flashes, the "unoccupied" mode
has been overridden.
NOTE: If all three of these symbols are flashing simul-
taneously, the controller is responding to a network
management "wink" command.
means that the controller is OFF.
and
mean that the controller is OFF, but that "frost
protection" has been enabled.
LonWorks Communications
General Information
The unit is equipped with a free-topology transceiver for
communication on L
W
ON
network is insensitive to polarity, eliminating the possibility of
installation errors due to miswiring.
Different network configurations (daisy-chain, loop, and star
configurations, or any combination thereof) are possible (see
also Excel 50/500 L
W
ON
ORKS
Description, EN0B-0270GE51).
Connecting to the L
ON
IMPORTANT
Do not bundle wires carrying field device signals or
L
W
communications together with high-
ON
ORKS
voltage power supply or relay cables. Specifically,
maintain a min. separation of 3 inches (76 mm)
between such cables. Local wiring codes may take
precedence over this recommendation.
IMPORTANT
Try to avoid installing in areas of high electro-
magnetic noise (EMI).
The unit must be wired to the L
IV 22 AWG (Belden part number 9D220150) or plenum-rated
level IV 22 AWG (Belden part number 9H2201504) non-
shielded, twisted-pair, solid-conductor wire. When possible,
use Honeywell AK3781, AK3782, AK3791, or AK3792 cable
(US part numbers). See Excel 50/5000 L
Mechanisms, EN0B-0270GE51, for details, including max.
lengths. Use wire with a min. size of 20 AWG (0.5 mm
max. size of 14 AWG (2.5 mm
D-71101 Schönaich
Made in Germany
W7754K,P,Q,R,S,T,V
1 2
Fig. 6. Connection to LonWorks network and termination
module (here: daisy-chain network configuration)
The unit is connected to the L
removable terminal plug (attached to terminals 1 and 2)
permitting individual units to be connected / disconnected
without disturbing the operation of other devices.
5
® networks. The L
W
ORKS
ON
Mechanisms Interface
W
Network
ORKS
W
network using level
ON
ORKS
W
ON
ORKS
2
).
D-71101 Schönaich
Made in Germany
W7754K,P,Q,R,S,T,V
1 2
W
network via a
ON
ORKS
EN1B-0304GE51 R0916M
ORKS
2
) and a
termination
module
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