Honeywell Excel 10 Installation Instructions Manual page 3

Table 1. W7754 Controller: Overview of terminals and functions (by model)
ter-
minal #
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 hardwired window contact, occupancy sensor, etc.; suitable for dry contacts, only;
max. voltage at open contact = 5 Vdc
an analog input, permanently configured to read input from a hardwired wall
4 module's temperature setpoint adjustment knob; can be enabled/disabled using
the left DIP switch
an analog input, permanently configured to read input from a hardwired wall
5 module's room temperature sensor (use NTC20k sensor, only; accuracy [w/o
sensor] = 0.5 °C at 25 °C); can be enabled/disabled using the left DIP switch
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 LED of a
9 hardwired wall module ON/OFF; can be enabled/disabled using the left DIP
(3)
switch ; max. voltage = 5 Vdc; max. current = 5 mA
an analog input, permanently configured to read input on whether a hardwired wall
module's 3-speed fan control knob has been set to AUTO, OFF, LOW, MEDIUM,
10
or HIGH and whether its "occupancy override" button has been pressed; can be
enabled/disabled using the left DIP switch
a digital input, permanently configured to read input on whether a window contact
11 is "open" or "closed"; can be enabled/disabled using the right DIP switch
suitable for dry contacts, only; max. voltage at open contact = 5 Vdc
12 not used
relay 4, permanently configured to write output to a hardwired electrical reheat coil,
13+14 switching it ON/OFF; switching voltage = 24...230 Vac; switching current =
0.05...10 A
15 a common terminal for terminals 16, 17, and 18
relay 3, permanently configured to write output to a hardwired three-speed fan,
(1)
16
setting it to HIGH
relay 2, permanently configured to write output to a hardwired three-speed fan,
(1)
17
setting it to MEDIUM
relay 1, permanently configured to write output to a hardwired three-speed fan,
(1)
18
setting it to LOW
(2)
19 a triac output, permanently configured to write output to OUT1, closing it
(2)
20 a triac output, permanently configured to write output to OUT1, opening it
(2)
21 a triac output, permanently configured to write output to OUT2, closing it
(2)
22 a triac output, permanently configured to write output to OUT2, opening it
(2)
23 a common terminal for terminals 19 and 20
(2)
24 a common terminal for terminals 21 and 22
the "N" (25) and "L" (26) terminals of power supply; 24 Vac (±20%), 50/60 Hz or
25+26
230 Vac (-15%/+10%), 50/60 Hz, depending upon model; removable plug
(1)
If all three relays (terminals 15 [common], 16, 17, and 18) are switched OFF, the three-speed fan will likewise be switched
OFF. Switching voltage = 24...230 Vac; switching current = 0.05...3 A (max. 3 A for all three relays together).
(2)
Switching voltage = 230 Vac (230-V models) or 24 Vac (24-V models), max. switching current = 0.5 A; max. peak (10 sec)
current = 1 A
(3)
Please use an appropriate tool (e.g. ball-point pen) to operate the DIP switch.
Additionally, the W7754K1001 features an extra socket (2-pin connector located to the left of the terminal blocks; see Fig. 1 on
page 1) containing a digital output suitable for attachment to a solid-state relay (use only Carlo Gavazzi RS1A23D25-P64; max.
voltage = 12 Vdc; max. current = 12 mA at 10 Vdc) 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.
function
W network; removable plug
ON ORKS
(3)
(3)
EXCEL 10 W7754K,P,Q FAN COIL UNIT CONTROLLERS
(3)
(3)
;
3
model
K P Q
X X X
X X X
X X X
X X X
X X X
-- -- --
X X X
X X X
X X X
X X X
-- -- --
-- X --
X X X
X X X
X X X
X X X
-- X X
-- X X
-- X X
X X X
X X X
X X X
230 Vac 230 Vac 24 Vac
EN1B-0304GE51 R0306C