Honeywell EXCEL 5000 OPEN T7460A User manual

® U.S. Registered Trademark

T7460A,B,C,D,E,F

WALL MODULES

INSTALLATION INSTRUCTIONS

BEFORE INSTALLATION

All wiring must comply with local electrical codes and

ordinances or as specified on installation wiring diagrams.

Wall module wiring can be sized from 16 to 22 AWG (1.5

to 0.34 mm2), depending on the application. The maximum

length of wire from a device to a wall module is 1000 ft

(305 m). Twisted-pair wire is recommended for wire runs

longer than 100 ft (30.5 m).

COVER DISASSEMBLY

The cover of the wall module is fixed in place using a tab

located on the underside of the unit; to disassemble the

cover and the subbase, see Fig. 1.

Fig. 1. Cover disassembly.

Table 1. Features of T7460 Versions

Sensor Setpoint Bypass/ LED Fan speed

T7460A ✓-- -

T7460B ✓✓ --

T7460C ✓✓ ✓ -

T7460D ✓✓ - 5-position

T7460E ✓✓ ✓

3-position

T7460F ✓✓ ✓

5-position

INSTALLATION

The T7460B,C,D,E,F packages include two setpoint dials.

By default, the “Celsius Relative” type is mounted. This can

be easily replaced with the “Celsius Absolute” type by

pulling the one dial off and inserting the other one.

Mount the T7460A,B,C,D,E,F Wall Modules on an inside

wall approximately 54 in. (1.3 m) from the floor (or in the

specified location) to allow exposure to the average zone

temperature.

NOTE: Maintain a mounting clearance of approx. 4 in.

(10 cm) to the left-hand side of the module in

order to allow a free airflow for the temperature

sensor and accessibility of the setpoint dial.

Do not mount the wall modules on an outside

wall, on a wall containing water pipes, or near air

ducts. Avoid locations that are exposed to

discharge air from registers or radiation from

lights, appliances, or the sun.

The T7460D,E,F should not be connected to

controllers that do not support fan operation

(e.g. W7751, W7762, W7763).

Keep wiring at least one ft (305 mm) away from

large inductive loads such as motors, line starters,

lighting ballasts, and large power distribution

panels.

Run wall module wiring separately from 50 Vac or

greater power wiring.

The wall modules can be mounted on a 60-mm wall outlet

box using No. 6 (3.5-mm) screws or on a wall (see Fig. 2

and 5). When mounting directly on a wall, use the type of

screws appropriate for the wall material.

Fig. 2. Bore-holes for T7460 wall modules in in. (mm).

See Fig. 3 for T7460A,B,C,D,E,F mounting dimensions.

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T7460A,B,C,D,E,F WALL MODULES

95-7610-2 2

NOTE: Graphics show E/F model. Dimensions are the same for all six models.

Fig. 3. T7460A,B,C,D,E,F dimensions in in. (mm).

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T7460A,B,C,D,E,F WALL MODULES

3 95-7610-2

Mounting Procedure

1. Disassemble the cover as is shown in Fig. 1.

2. (T7460B,C,D,E,F only)

Remove the setpoint dial by pulling it off.

3. a) Mount the wall module onto the wall outlet box,

b) bore wall holes as is specified in Fig. 2 and

mount the wall module with appropriate screws.

4. Connect the wires to the terminal block according

to the specifications in the “Wiring” section.

5. (T7460B,C,D,E,F only)

Insert the setpoint dial and turn it clockwise as far

as possible.

1. (T7460B,C,D,E,F only)

Make sure that the dial's position is such that the

30 (Celsius absolute scale) or the +5 (Celsius

relative scale) point to the right-hand side of the

wall module (see Fig. 4).

Fig. 4. Mounting position of setpoint dial.

7. (T7460B,C,D,E,F only)

If the dial does not have the correct position, pull

the dial off again and reinsert it with the correct

orientation.

8. Remount the cover as depicted in Fig. 5 and make

sure that the tab on the underside engages.

Fig. 5. Mounting cover of T7460 wall modules.

Wiring

Attach the wires from the device sensor terminals to the

appropriate wall module terminals and set the jumpers

according to the connected controller. See Fig. 6, 7 and 8.

NOTE: Not all of the T7460 wall modules are compatible

with W7751A,C,E,G(VAV1) and W7752D1(FCU1)

Controllers.

IMPORTANT

Screw type terminal blocks are designed to

accept no more than one 16 AWG (1.5 mm2)

conductor.

Wire the terminal blocks as follows:

1. Strip 3/16 in. (5 mm) of insulation from the

conductor.

2. Insert the wire in the required terminal location and

tighten the screw to complete the termination.

3. Verify jumper setting with Fig. 6 and wall module

wiring with Fig. 7 and 8.

Jumper settings

According to the type of controller connected, the following

jumpers have to be set on the PCB of the T7460C,D,E,F.

NOTE: The “W77xx” at the first jumper position stands for

the Excel 10 and Excel 12 controllers:

Const. Vol. Air Handling Unit W7750A,B

(Smart) Variable Air Volume W7751B,D,F,H

Fan Coil Unit (FCU2) W7752D,E,F,G

Remote Input/Output Device W7761A

Hydronic W7762A,B

Chilled Ceiling W7763C,D,E

Excel 12 W7704xx

Excel 10

ontroller:

W7750, W7751, W7752

W7761, W7762, W7763

1: W77xx

2: W7753

3: XL500

Excel 10 Controller:

W7753A (Unit Ventilator)

Excel Controller:

20, 50, 80, 100, 500, 600

without fan

Excel Controller:

20, 50, 80, 100, 500, 600

with fan

Fig 6. Jumper settings for T7460C,D,E,F Wall Modules.

Factory Default

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T7460A,B,C,D,E,F WALL MODULES

95-7610-2 4

Fig 7. Wiring diagram for T7460A,B Wall Modules.

Fig 8. Wiring diagram for T7460C,D,E,F Wall Modules (for the jumper settings, see Fig. 6).

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T7460A,B,C,D,E,F WALL MODULES

5 95-7610-2

ACCESSORIES

T7460-LONJACK

The T7460-LONJACK allows to easily access LONWORKS via the wall module. LONWORKS will be connected to the two LON

terminals. A PC connection can be established using the 3.5-mm jack plug.

Order quantity: set with 5 pieces

Fig 9. T7460-LONJACK

Mounting

Remove the setpoint dial and put in the T7460-LONJACK as shown in the following:

Fig 10. Mounting T7460-LONJACK

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T7460A,B,C,D,E,F WALL MODULES

Home and Building Control Home and Building Control Home and Building Control Products

Honeywell Inc. Honeywell Limited-Honeywell Limitee Honeywell AG

Honeywell Plaza 155 Gordon Baker Road Böblinger Straβe 17

P.O. Box 524 North York, Ontario D-71101 Schönaich

Minneapolis, MN 55408-0524 M2H 3N7 Germany

USA Canada

http://www.honeywell.com http://www.honeywell.ca http://europe.hbc.honeywell.com

95-7610-2 Rev. 04-02 7157325 Printed in Germany Subject to change without notice

T7460-LIMITER

The T7460-LIMITER can be used to adjust the setpoint dial to particular setpoints.

Put the limiters approximately opposite the setpoints you want to adjust. In the following example, the setpoints are at about 18

and 27 °C.

Order quantity: set of 100 pieces

Setpoint Limit 2

Limiter 2

Setpoint Limit 1

Limiter 1

Fig 11. Mounting T7460-LIMITER(S)

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