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EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
EN2B-0285GE51 R0909
21
Terminal Block Assignment and Wiring Example for the W7752 Controller
Table 11 illustrates terminal block assignments and wiring for
an example Excel 10 W7752 FCU Controller installation.
Table 12 lists wiring information for all possible actuator types.
Table 11. W7752 Controller: Overview of terminals and functions (by model)
model
terminal
#
function
D E F G J
1 GND serving terminals 2 and 3 3 3 3 3 3
2
a digital input, configurable (using the LNS plug-in) to read input e.g. from a
window contact, an occupancy sensor, etc.
3 3 3 3 3
3
a digital output, permanently configured to write output switching the wall module's
LED ON/OFF
3 3 3 3 3
4
an analog input, permanently configured to read input from a wall module's
temperature setpoint adjustment knob
3 3 3 3 3
5
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,
or HIGH and whether the wall module's "occupancy override" button has been
pressed
3 3 3 3 3
6
an analog input, permanently configured to read input from a room temperature
sensor
3 3 3 3 3
7 GND serving terminals 4, 5, and 6 3 3 3 3 3
8 not used -- -- -- -- --
9+10 receiving/sending data on the LONWORKS network 3 3 3 3 3
11+12 sending/receiving data on the LONWORKS network 3 3 3 3 3
13 a common terminal for terminals 14 and 15 3 3 3 3 3
14 a triac output, permanently configured to write output to OUT1, opening it 3 3 3 3 3
15 a triac output, permanently configured to write output to OUT1, opening it 3 3 3 3 3
16 a common terminal for terminals 17 and 18 3 3 3 3 3
17 a triac output, permanently configured to write output to OUT2, opening it 3 3 3 3 3
18 a triac output, permanently configured to write output to OUT2, closing it 3 3 3 3 3
19 a common terminal for terminals 20, 21, and 22 3 3 3 3 3
20
(1)
relay 1, permanently configured to write output to a three-speed fan, setting it to
LOW
3 3 3 3 3
21
(1)
relay 2, permanently configured to write output to a three-speed fan, setting it to
MEDIUM
3 3 3 3 3
22
(1)
relay 3, permanently configured to write output to a three-speed fan, setting it to
HIGH
3 3 3 3 3
23 the "L" terminal of the power supply (230 Vac, 115 Vac, or 100 Vac, respectively) 230 230 115 115 100
24 the "N" terminal of the power supply (230 Vac, 115 Vac, or 100 Vac, respectively) 230 230 115 115 100
25+26
relay 4, permanently configured to write output to a hardwired electrical reheat
coil, switching it ON/OFF
3 -- 3 -- --
(1)
If all three relays (terminals 20, 21, and 22) are switched OFF, the three-speed fan will likewise be switched OFF.
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.
Table 12. Output assignments of Excel 10 W7752 FCU Controller for various actuator types
out 1 terminal out 2 terminal
output type
13 14 15 16 17 18
floating 24 Vac open close 24 Vac open close
1-stage 24 Vac ON/OFF — 24 Vac ON/OFF —
2-stage 24 Vac stage 1 stage 2 24 Vac stage 1 stage 2
24 Vac stage 1 stage 2 24 Vac stage 1 stage 2
3-stage
stage 3 stage 3
PWM 24 Vac PWM — 24 Vac PWM —
thermal 24 Vac ON/OFF — 24 Vac ON/OFF —