Honeywell W7754P1000, W7754Q1008, W7754K1001, W7754R4431, W7754T4431 Installation Instructions Manual

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Page 1

W7754K,P,Q,R,S,T,V FAN COIL UNIT

HONEYWELL EXCEL 5000 OPEN SYSTEM

GENERAL INFORMATION

LonWorks SERVICE BUTTON

LonWorks

SERVICE LED

LEFT DIP SWITCH (USED = WALL MODULE CONNECTED) RIGHT DIP SWITCH (USED = TERMINAL 11 ENABLED)

TERMINAL ASSIGNMENT LABEL

BEFORE INSTALLATION

IMPORTANT

Excel 10

CONTROLLERS

INSTALLATION INSTRUCTIONS

It is recommended that the unit be kept at room temperature for at least 24 hours before applying power; this is to allow the evaporation of any condensation resulting from low shipping / storage temperatures.

US requirement, only: This device must be installed in a UL-listed enclosure offering adequate space to maintain the segregation of line voltage field wiring and Class 2 field wiring.

RELAYS TRIACS

ANALOG OUTPUT & ANALOG INPUTS

REMOVABLE LonWorks TERMINAL PLUG

BINARY OUTPUT FOR LOW-VOLTAGE PWM

CONTROL OF SOLID-STATE RELAY (W7754K, only)

FUSE

REMOVABLE POWER SUPPLY TERMINAL PLUG

Fig. 1. Excel 10 W7754 FCU Controller (w/o opt. cover)

triac voltage

OS no.

W7754K1001

W7754P1000

W7754Q1008

W7754R4431

W7754S2230

W7754T4431

W7754V1230

power supply

(removable plug)

25, 26

230 VAC 230 VAC

24 VAC 24 VAC

230 VAC 230 VAC

230 VAC 24 VAC

230 VAC 230 VAC

19-22

binary input, for

reading input from,

e.g., window contact,

occupancy sensor, etc.

binary input, for

reading input from

window contact

DI1

X X X X X -- -- -- -- X X -- X X X X

X X XXX X XXXX -- -- X XXX

X X XXX X XXXX -- X X XXX

X X X X X -- -- X -- X -- -- X X X X

X X XXX X XXXX -- X X XXX

X X -- -- -- X -- X -- X -- X X X X X

DI2

Table 1. Overview of models

乨 CAUTION

To avoid electrical shock or equipment damage, you must switch OFF the power supply before attaching / removing connections to/from any terminals.

n.-o. relays, for 3-speed

fan control

Fan I

Fan II

Fan III

n.-o. relay, for reheat

coil control

Reheat

OUT1 close

triac outputs, for

opening / closing valve

OUT1 open

OUT2 close

output, for low-voltage

OUT2 open

PWM control of solid-

state relay

analog output, for

variable-speed fan

control

binary input, for con-

nection to wall module

LED

analog inputs, for con-

nection to wall module

solid state

AO1

LED

FanSwitch

Sensor

Setpoint

Page 2

EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

MOUNTING

All models have the same dimensions (W x L x H = 110 x 180 x 60 mm) (see Fig. 2) conforming to IP20. With optional terminal protection cover, width is 130 mm.

59.5

cover (optional)

terminal protection

110

130

Fig. 2. Excel 10 W7754 dimensions (in mm)

The unit is suitable for mounting on a standard rail (DIN EN 50022-35 x 7,5), on walls, as well as for installation in wiring cabinets or fuse boxes.

DIN Rail Mounting/Dismounting

SCREWING NOSE

(oval hole)

SCREWING NOSE

(oval hole)

EYELETS FOR

CABLE BINDERS

STIRRUP; PULL DOWN

EYELETS FOR

CABLE BINDERS

TO DISMOUNT UNIT

Fig. 3. Housing base (view from below)

The unit can be mounted onto the DIN rail simply by snapping it into place. It is dismounted by gently pulling the stirrup located in the base of the housing (see Fig. 3). When mounted on a DIN rail, the unit must be secured in place with a stopper to prevent sliding.

SCREWING NOSE

FROM RAIL

SCREWING NOSE

(round hole)

(oval hole)

Wall Mounting/Dismounting

The unit can be mounted on walls in any desired orientation. The unit is mounted by inserting 3.5-mm dowel screws through the corresponding screwing noses.

154 mm

round hole

(diameter: 4 mm)

oval hole (4x7 mm)

Fig. 4. Drilling template (view from above)

After mounting the unit onto the wall, provide for cable access by snipping out the terminal protection cover's cut-out tabs and snap it (by hand) into place on the housing. To remove the cover, place a screwdriver in the leverage slot and pry it loose.

Terminal Assignment

The unit features two rows of terminal blocks located on one side for the connection of cables to the relays, inputs, and outputs as well as for connecting the removable power supply terminal plug and removable L

NOTE: All high-voltage terminal blocks are orange-colored.

Depending on the given hardware model, the units have different power supplies and are equipped with different numbers of triac outputs, relay outputs, etc. See Table 2 on page 3.

Every unit is therefore equipped with a terminal assignment label on the top of the housing (see Fig. 1 on page 1). Unused terminals are indicated by dotted lines.

NOTE: According to VDE guidelines, it is not allowed to mix

low-voltage and high-voltage signals on the relays.

See also Table 4 on page 6.

ONWORKS terminal plug.

100 mm

EN1B-0304GE51 R0916M

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EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

Table 2. W7754 Controller: Overview of terminals and functions (by model)

VAC

model

230

VAC

230

VAC

230

VAC

230

VAC

term.

function

(1)

P Q R S T V

1+2 Removable plug; receiving/sending data on the LONWORK S network X X X X X X X

BINARY INPUT (DI1), configurable (via the LNS plug-in) to read input from, e.g., a hardwired

window contact, occupancy sensor, etc.; suitable for dry contacts, only; max. voltage at open contact = 5 Vdc

ANALOG INPUT (AI3), permanently configured to read input from a hardwired wall module's

temperature setpoint adjustment knob; enabled / disabled using the left DIP switch

ANALOG INPUT (AI2), permanently configured to read input from a hardwired wall module's room temperature sensor (use NTC20k sensor, only; accuracy [w/o sensor] = 0.5 °C at 25 °C);

enabled / disabled using the left DIP switch

X X X X X X X

6 GND serving terminals 4, 5, 9, 10, and 11 (I/Os for wall module) X X X X X X X

7 GND serving terminal 12 (AO1) -- -- -- X -- X X

8 GND serving terminal 3 (DI1) X X X X X X X

BINARY OUTPUT (LED), permanently configured to write output to switch the LED of a hard-

wired wall module ON/OFF; enabled / disabled using the left DIP switch; max. voltage = 5 Vdc; max. current = 5 mA

ANALOG INPUT (AI1), 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, or HIGH and

whether its "occupancy override" button has been pressed; enabled / disabled using the left DIP switch

BINARY INPUT (DI2), permanently configured to read input on condition (open/closed) of

window contact; enabled / disabled using the right DIP switch; suitable for dry contacts, only; max. voltage at open contact = 5 Vdc

ANALOG OUTPUT (AO1), used (depending upon configuration via the LNS plug-in) to control a

variable speed fan or to control a proportional valve

A normally-open relay (Rel4), permanently configured to write output to switch a hardwired

13+14

electrical reheat coil ON/OFF; switching voltage = 24...230 Vac; switching current = 0.05...10 A

(2)

or to control a 6-way ball valve

(6)

X X X X X X X

-- -- -- X -- X X

-- X X X -- X X

15 A common terminal for terminals 16, 17, and 18 X X X X X X --

A normally-open relay (Rel3), permanently configured to write output to a hardwired three-speed

(3)

fan, setting it to HIGH

A normally-open relay (Rel2), permanently configured to write output to a hardwired three-speed

(3)

fan, setting it to MEDIUM

A normally-open relay (Rel1), permanently configured to write output to a hardwired three-speed

(3)

fan, setting it to LOW

(4)(7)

Triac output (Triac1), perm. configured to write output to OUT1 & close hardwired valve --

(4)(7)

Triac output (Triac2), perm. configured to write output to OUT1 & open hardwired valve --

(4)(7)

Triac output (Triac3), perm. configured to write output to OUT2 & close hardwired valve -- X X X -- X --

(4)(7)

Triac output (Triac4), perm. configured to write output to OUT2 & open hardwired valve X X X X X X X

24 VAC common terminal for terminals 19 & 20; internally connected to terminal 24;

(3)(7)

W7754T4431, only: internally connected also to terminal 27

24 VAC common terminal for terminals 19 & 20; internally connected to terminal 23;

(3)(7)

W7754T4431, only: internally connected also to terminal 27

The "N" (25) & "L" (26) power supply terminals (removable plug); W7754Q: 24 VAC (20%),

25+26

50/60 Hz; W7754K,P,R,S,T,V: 230 VAC (-15%/+10%), 50/60 Hz

(7)

24 VAC / 200 mA auxiliary voltage; internally connected to terminals 23 & 24 -- -- -- -- -- X --

(7)

A common terminal for terminal 27; internally connected to terminals 6, 7, & 8 -- -- -- -- -- X --

(1)

The W7754K features an extra socket (2-pin connector located to the left of the terminal blocks) containing an 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) for low-voltage PWM control in high-current electrical reheat applications. To enable it, term. 19 and 20 must be configured (via LNS plug-in) for “Heat” -> “PWM”.

(2)

For AO1 (terminal 12) to be used to control a proportional valve, OUT1 (term. 19 and 20) must be configured (via LNS plug-in) for “PWM”, and the fan must not be configured for “variable speed fan”.

(3)

If all three relays (term. 16, 17, and 18) are switched OFF, the 3-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).

(4)

Switching voltage = 230 VAC (W7754K,P,R,S,V) or 24 VAC (W7754Q,T), max. switching current = 0.5 A; max. peak (10 sec) current = 1 A

(5)

For output for low-voltage PWM control of a solid-state relay (W7754K, only) to be used, these terminals must be configured (via LNS plug-in) for “Heat” -> “PWM”.

(6)

In order for AO1 (terminal 12) to be used to control a 6-way ball valve from Belimo, OUT1 must be configured for "Not USED," OUT2 (term. 21 and 22) must be configured (via LNS plug-in) for "Changeover Mode" type "Floating Mid," and the fan must not use the analog output (no fan or 1…3-speed fan).

(7)

Total current draw of terminals 19 through 24 and 27 through 28 must not exceed 450 mA.

X X X X X X --

(5)

X X X -- X --

(5)

X X X X X X

X X X X X X X

230

VAC

EN1B-0304GE51 R0916M

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EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

Power Supply

General Information

CAUTION

To prevent a risk of injury due to electrical shock and/or damage to device due to short-circuiting, lowvoltage and high-voltage lines must be kept physically separate from one another.

NOTE: All wiring must comply with applicable electrical

NOTE: To comply with CE requirements, devices having a

Use a min. of 18 AWG (1.0 mm (2.5 mm

Power is supplied via a removable terminal plug (attached to terminals 25, 26) allowing individual units to be disconnected from the power supply without disturbing the operation of other devices powered by the same source. See Fig. 5.

NOTE: To prevent a risk of short-circuiting and damage to

codes and ordinances. Refer to job or manufacturers’ drawings for details. Local wiring guidelines (e.g., IEC 364-6-61 or VDE 0100) may take precedence over recommendations provided in these installation instructions.

voltage of 50...1000 Vac or 75...1500 Vdc but lacking a supply cord, plug, or other means for disconnecting from the power supply must have the means of disconnection incorporated in the fixed wiring. This means of disconnection must have a contact separation of at least 3 mm at all poles.

) for all power wiring.

Excel 10

W7754K,P,R,S,T,V

230

Vac

25 26

230

Vac

25 26

230

Vac

25 26

230 Vac (-15% / +10%),

50 / 60 Hz

) and a max. of 14 AWG

Excel 10 W7754Q

252526

24 Vac

(+/-20%)

230 Vac (-15% / +10%),

50 / 60 Hz

Fig. 5. Connection to power supply

your unit, do not reverse the polarity of the power connection cables, and avoid ground loops (i.e. avoid connecting one field device to several controllers).

Electrical Data

W7754K,P,R,S,V: 230 Vac +10%, -15%, 50/60 Hz;

W7754T: 230 Vac +10%, -15%, 50/60 Hz;

W7754Q: 24 Vac 20%, 50/60 Hz

max. 6 VA power consumption (unloaded)

max. 12 VA power consumption (unloaded)

max. 6 VA power consumption (unloaded)

Wall Modules

The T7460 and T7560 Wall Modules can be used in conjunction with the W7754 to perform room temperature sensing, set-point adjustment, fan speed manual override, and occupancy override. When hardwired to the controller (via terminals 4, 5, 6, 9, and 10), the wall module's LED/LCD can be configured to provide information about

 any override of the controller by, e.g., manual operation of

the wall module or the receipt by the controller of a network command (see section "Configuration of LED to Display Info on Overrides" below);

 the controller's effective occupancy mode (see sections

"Configuration of LED to Display Info on Occupancy Mode" and "Configuration of LCD to Display Info on Occupancy Mode” below).

NOTE: The left DIP switch located on the top of the con-

NOTE: The intended use of the wall module's buttons must

T7460C

T7460D

T7460E

T7460F

T7560A

T7560B

Example:

The T7560A has a left button configurable as a fan speed button, a middle button configurable as a unit ON/OFF button, and a right button for override. See T7460 Wall Modules Installation Instructions (95-7610) and T7560 Digital Wall Module Installation Instructions (EN1B-0146GE51) for details.

troller (see Fig. 1 on page 1) is used to indicate that a wall module can be hardwired to the controller. Setting the left DIP switch to USED means that a wall module can be hardwired; setting it to UNUSED means that no wall module can be hardwired. Use only an appropriate tool (e.g., ball-point pen) to set the DIP switch.

be configured using Honeywell's LNS plug-in.

Table 3. Supported wall module functions

T7560 button

override unit ON/OFF fan speed



-- --

-- -- --

 



-- --

left -- --

middle --

right



left -- --

middle --

right



-- --



EN1B-0304GE51 R0916M

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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 override button being pushed or because the controller has received 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 network 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.

ONWORKS network) is currently in

 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 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 Description, EN0B-0270GE51).

Connecting to the LONWORKS Network

IMPORTANT

Do not bundle wires carrying field device signals or L

ONWORKS communications together with high-

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 electromagnetic 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) nonshielded, 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

W7754K,P,Q,R,S,T,V

1 2 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.

ONWORKS® networks. The LONWORKS

ONWORKS Mechanisms Interface

ONWORKS network using level

ONWORKS

D-71101 Schönaich Made in Germany

W7754K,P,Q,R,S,T,V

ONWORKS network via a

D-71101 Schönaich Made in Germany

) and a

termination

module

EN1B-0304GE51 R0916M

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EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

Depending upon the chosen network configuration, one or two terminations (see section "L

8) may be required.

ONWORKS Termination" on page

Inputs/Outputs

Wiring the Inputs/Outputs

Use a min. size of 20 AWG (0.5 mm2) and a max. of 14 AWG (2.5 mm all input/output cables is 400 m.

Two wires with a total thickness of 14 AWG can be twisted together and connected using a wire nut (include a pigtail with this wire group and attach the pigtail to the individual terminal block). Deviations from this rule can result in improper electrical contact. Local wiring codes may take precedence over this recommendation.

Binary Inputs

The unit's binary inputs are suitable for connection with dry contacts, only.

Relay Outputs

The relay outputs can be configured (via the LNS plug-in) for a variety of different functions. Once the relay outputs have been configured, the corresponding devices can then be connected to them directly.

Hardware Limits

 Min. current of 50 mA required to ensure reliable contact.

 The normally-open contacts are designed for a max.

NOTE: If inductive components are to be connected to the

Triac Outputs

The triac outputs can be configured (via the LNS plug-in) for a variety of different functions, e.g., for connection to either a floating drive or to a thermal actuator (see Table 4 to Table 6). Once the triac outputs have been configured, the corresponding devices can then be connected to them directly.

NOTE: VC6983 generates high-voltage pulses in the end

) for all input/output connections. The max. length of

continuous current of 3 A (for relays 1, 2, and 3 together) and 10 A (relay 4), respectively.

relays and if these relays switch more often than once every two minutes, these components must be prevented from causing harmful interference to radio or television reception (conformance with EN 45014).

position and therefore cannot be used in conjunction with the W7754.

Hardware Limits for W7754K,P,R,S,T,V (230 Vac Power Supply)

 Low signal: 0 V; high signal: 230 Vac  Max. allowable continuous current for each individual triac

output: 500 mA

 Max. allowable peak current (for 10 seconds) for each

individual triac output: 1 A

 Max. allowable continuous current for all of the triac

outputs together: 1 A.

 cos  > 0.8

Hardware Limits for W7754Q1008 (24 Vac Power Supply)

 Low signal: 0 V; high signal: 24 Vac  Max. allowable continuous current for each individual triac

output: 500 mA

 Max. allowable peak current (for 10 seconds) for each

individual triac output: 1 A

 Max. allowable continuous current for all of the triac

outputs together: 1 A.

 cos  > 0.8

Table 4. W7754K Output assignments

output

type

1-stage

PWM -- enabled for heating PWM

thermal -- enabled for heating ON / OFF

output

type

floating -- close open close open --

1-stage

2-stage

3-stage

PWM -- -- PWM -- PWM

thermal -- --

stage

0 -- OFF

1 -- ON

Table 5. W7754P,Q,R,T, Output assignments

stage

0 -- OFF -- OFF --

1 -- ON -- ON --

0 OFF OFF OFF OFF --

1 OFF ON OFF ON --

2 ON ON ON ON --

0 OFF OFF OFF OFF --

1 OFF ON OFF ON --

2 ON OFF ON OFF --

3 ON ON ON ON --

solid state OUT2

plug terminal 22

OUT1 OUT2

19 20 21 22 12

ON / OFF

AO (W7754R,T,

figured for “PWM”

parallel to OUT1

ON / OFF

only)

If OUT1 is con-

and fan is not

configured for

“variable-speed

fan”, AO runs in

EN1B-0304GE51 R0916M

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EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

Table 6. W7754S,V Output assignments

output

type

1-stage

stage

0 -- OFF -- OFF --

1 -- ON -- ON --

OUT1 OUT2

19 20 21 22 12

PWM -- -- PWM -- PWM

thermal -- --

ON / OFF

ON /

-OFF

AO (W7754V,

only)

If OUT1 is con-

figured for “PWM”

and fan is not

configured for “variable-speed fan”, AO runs in

parallel to OUT1

Analog Inputs

The unit is equipped with two analog inputs (for connection to a room sensor and to a wall module with temperature setpoint adjustment, respectively).

Table 7. Analog input usage

analog input wall module

AI1 room sensor 1) AI2 setpoint adjustment

1) If sensor measures a temperature outside range of 0...70 °C, this is interpreted as a sensor break / short circuit.

Analog Output

The W7754R, W7754T, and W7754V feature an analog output which can be used to control

 a variable speed fan, or  a proportional valve (provided that, via the LNS plug-in,

OUT1 has been configured for “PWM” and the fan has not been configured for “variable speed fan”), or

 a 6-way valve (provided that, via the LNS plug-in, OUT1

has been configured for “Not USED,” OUT2 has been configured for the “Changeover Mode” of type “Floating Mid,” and the fan is not using the analog output (no fan or 1…3-speed fan)).

Table 8. Analog output usage

voltage / current

resolution

NOTE: Connecting 24 Vac to the analog output will damage

the hardware.

0…10 V, -1 / +5 mA

8 bit

Table 9. Use of the analog output

function fan output

1 mode

var.-speed fan var.-

0…10 V actuator with prop. characteristic

0…10 V actuator with “floating mid” characteristic

2…10 V actuator with 6-way valve characteristic

speed fan

no fan or 1…3speed fan

don’t care

heat, cool or changeover

changeover mode

not used - change-

output

1 type

don’t care

PWM don’t

floating mid

OUTPUT 1

10.0 V

5.0 V

0.0 V 100%

Fig. 7. Operational sequence with “floating mid

characteristic” on the analog output (0….10 V)

AO (0...100% = 0...10 V),

no feedback on LonWorks network

no heat, no cool

0% 0%

nvoCoolOutput nvoHeatOutput

nvoFCUStatus.output_position[0]

output

2 mode

don’t care

care

not used -

over mode

100%

output

2 type

don’t care

floating mid

EN1B-0304GE51 R0916M

Page 8

EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

OUTPUT 2

10.0 V

7.3 V

6.0 V

4.7 V

2.0 V

0.0 V 100%

Fig. 8. Operational sequence with Belimo 6-way valve

connected to the analog output (2….10 V)

Replacing the Fuse

NOTE: Before replacing the fuse (see also Fig. 1 on page

1), disconnect the controller from the power source by detaching the removable terminal plug attached to terminals 25 and 26.

AO (0...100% = 0...10 V),

no feedback on LonWorks network

no heat, no cool

0% 0%

nvoCoolOutput nvoHeatOutput

nvoFCUStatus.output_position[0]

100%

Possible Problems and Recommended Actions

Check if the LONWORKS service LED's behavior is changed if you switch the power OFF/ON. Please contact Honeywell if this does not solve the problem.

Accessories

Terminal Protection Cover

Required for wall mounting. Set of eight covers.

 order no.: XAL_COV_L

LONWORKS Termination

One or two LONWORKS terminations are required, depending on the given LonWorks bus layout. See section "Connecting to the L

ONWORKS Network" on page 5.

The following L

 XAL-Term2 L

Module, which can be mounted on DIN rails and in fuse boxes

ONWORKS termination module is available:

ONWORKS Connection and Termination

LONWORKS TERMINATION

PLUG-IN JUMPER

PARK POSITION

(NO TERMINATION)

CAUTION

Depending upon actual wiring, even after you have switched OFF the power supply, the relays may still be under high voltage.

When replacing the controller's fuse, please replace with the same type listed on the terminal assignment label (e.g.: F2.5H250V).

Troubleshooting

All units feature a LONWORKS service LED and corresponding L

ONWORKS service button (see Fig. 1) for commissioning and

troubleshooting.

When the service button is pressed, the service pin message is broadcast.

See Table 10 on page 9 for a description of the meaning of the various different possible behaviors of the L service LED. For more information on standard service LED behavior, refer to Motorola L

ONWORKS Technology Device

Data Manual, page AL-190.

ONWORKS

REMOVABLE SCREW-TYPE

2-POLE TERMINAL BLOCK

Fig. 9. L

ONWORKS connection and termination module

FTT/LPT BUS FTT/LPT FREE

FTT/LPT

BUS TOPOLOGY:

105 OHM

100 μ

105 Ohm

100 μ

FTT/LPT

FREE TOPOLOGY:

52.3 OHM

100 μ

52.3 Ohm

100 μ

EN1B-0304GE51 R0916M

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EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

Table 10. LONWORKS Service LED Behaviors and Meanings

1 LED remains OFF after power-up.

4 LED flashes briefly periodically.

LED blinking pattern meaning

Defective device hardware. Suspect power supply problems, clock problems, or defective Neuron Chip.

LED is lit continuously after first power-up.

LED flashes at power-up, goes OFF, then is lit continuously.

LED repeatedly blinks ON for 1 s and OFF for 1 s.

OFF  10 s. Afterwards, service LED turns ON and remains ON, indicating completion of blanking process.

OFF  1 s. The service LED is then lit continuously.

OFF = 1...15 s, depending on application size and system clock. Service LED then repeatedly blinks ON for 1 s and OFF for 1 s.

OFF indefinitely (1...15 s to load internal EEPROM; remains OFF).

LED remains OFF after a short ON duration.

LED flashes ON. Controller has received

Defective hardware.

Controller lacks application.

Controller probably experiencing continuous watchdog resets, or external memory or EEPROM is corrupt.

Controller is unconfigured but has an application.

Using EEBLANK on a Neuron 3150 Chip-based custom node.

First power-up with a new PROM on a Neuron 3150 Chip-based customized node. Application-less firmware state exported.

Controller is configured and running normally.

WINK command from network. Other physical outputs are unaffected.

Approvals, Certifications, and Standards

Approvals and Certifications

 CE-approved  Certified as per LonMark® Application Layer Guidelines V

3.0, thus interoperable with all other devices in open

ONWORKS® networks (incl. 3

 EUBAC-certified as follows:

W7754Q1008:

-party devices)

eu.bac

020706

Cert

Temperature Control Accuracy (CA)

W7754P1000, W7754Q1008 with Motorized Actuator

FCU heating mode: 0.5 K FCU cooling mode: 0.2 K

(min. CA values requested by EUBAC for fan coil unit applications: ≤ 1.4 K)

W7754R4431, W7754S2230 with Low-Cost Thermal Actuator

FCU heating mode: 0.8 K FCU cooling mode: 0.9 K

(min. CA values requested by EUBAC for fan coil unit applications: ≤ 1.4 K)

W7754R4431, W7754T4431 with Floating-Point Actuator

(PID parameters: Xp = 1.5; Tn = 1100; Dn = 600)

FCU heating mode: 0.2 K FCU cooling mode: 0.1 K

Classification according to EN 60730-1

EN 60730 sub part: EN 60730-2-9

Environmental conditions: For use in home (residential,

commercial, and light-industrial) environments

Construction: independently mounted control

Action: type 1.C

Rated impulse voltage: 2500 V at 230 V; 500 V at 24 V

Pollution degree: Class 2

Protection against shock: Class 0 (without terminal cover)

Class II (with terminal cover)

Software class: Class A

Classification according to EN 60529

(Degree of protection provided by enclosures)

IP20

Ambient Environmental Limits

Operating temperature: 0 … +50 °C at 5…90% r.H.

Storage temperature: -40 … +70 °C at 5…90% r.H.

EN1B-0304GE51 R0916M

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EXCEL 10 W7754K,P,Q,R,S,T,V FCU CONTROLLERS − INSTALLATION INSTRUCTIONS

Manufactured for and on behalf of the Environmental & Energy Solutions Division of Honeywell Technologies Sàrl, Rolle, Z.A. La Pièce 16, Switzerland by its Authorized Representative:

Automation and Control Solutions

Honeywell GmbH Böblinger Strasse 17 71101 Schönaich, Germany Phone +49 (0) 7031 637 01 Fax +49 (0) 7031 637 740 http://ecc.emea.honeywell.com

EN1B-0304GE51 R0916M Subject to change without notice