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Terminal Block Assignment And Wiring Example For The W7754 Controller - Honeywell Excel 10 W7752D User Manual

Fan coil unit controllers lns plug-ins
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EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

Terminal Block Assignment and Wiring Example for the W7754 Controller

Table 13 lists the terminals and their functions of the Excel 10 W7754 FCU Controller. Table 14 lists wiring information for all
possible actuator types.
Table 13. W7754 Controller: Overview of terminals and functions (by model)
terminal
#
1+2
receiving/sending data on the L
a digital input, configurable (using the LNS plug-in) to read input e.g. from a
3
window contact, an occupancy sensor, etc.
an analog input, permanently configured to read input from a wall module's
4
temperature setpoint adjustment knob
an analog input, permanently configured to read input from a room temperature
5
sensor
6
GND serving terminals 4, 5, 9, 10, and 11
7
not used
8
GND serving terminal 3
a digital output, permanently configured to write output switching the wall module's
9
LED ON/OFF
an analog input, permanently configured to read input on whether the wall
module's 3-speed fan control knob has been set to AUTO, OFF, LOW, MEDIUM,
10
or HIGH and whether the wall module's "occupancy override" button has been
pressed
a digital input, permanently configured to read input on whether a window contact
(1)
11
is "open" or "closed"
12
not used
relay 4, permanently configured to write output to a hardwired electrical reheat
13+14
coil, switching it ON/OFF
15
a common terminal for terminals 16, 17, and 18
relay 3, permanently configured to write output to a three-speed fan, setting it to
(2)
16
HIGH
relay 2, permanently configured to write output to a three-speed fan, setting it to
(2)
17
MEDIUM
relay 1, permanently configured to write output to a three-speed fan, setting it to
(2)
18
LOW
19
a triac output, permanently configured to write output to OUT1, closing it
20
a triac output, permanently configured to write output to OUT1, opening it
21
a triac output, permanently configured to write output to OUT2, closing it
22
a triac output, permanently configured to write output to OUT2, opening it
23
a common terminal for terminals 19 and 20
24
a common terminal for terminals 21 and 22
25
"N" terminal of power supply (24 Vac or 230 Vac, respectively); removable plug
26
"L" terminal of power supply (24 Vac or 230 Vac, respectively); removable plug
(1)
This digital input can be enabled / disabled using the right DIP switch located on the top of the controller.
(2)
If all three relays (terminals 16, 17, and 18) are switched OFF, the three-speed fan will likewise be switched OFF.
Additionally, the W7754K1001 features an extra socket (located to the left of the terminal blocks) containing a digital output
suitable for attachment to a solid-state relay employed for low-voltage PWM control in high-current electrical reheat applications.
Using Honeywell's LNS plug-in, you can configure the controller's triac outputs and relay outputs for a variety of different
functions. E.g. the triac outputs can be configured for connection to either a floating drive or to a thermal actuator. Once the
outputs have been configured, the corresponding devices can be directly connected to them.
EN2B-0285GE51 R0909
function
W
network; removable plug
ON
ORKS
22
model
K
L
M
N
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230
24
230
230
230
24
230
230
P
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230
230

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