Honeywell T7560C, T7560B, T7560A User Manual

T7560A,B,C Digital Wall Module

HONEYWELL EXCEL 5000 OPEN SYSTEM

INSTALLATION INSTRUCTIONS

BEFORE INSTALLATION

All wiring must comply with local electrical codes and ordinances or as specified on installation wiring diagrams. Digital Wall Module (DWM) wiring can be sized from 16 to 22 AWG (1.5 to 0.34 mm2), depending on the application. The max. length of wire from a device to a DWM is 164 ft (50 m). Twisted pair wire is recommended for wire runs longer than 100 ft (30.5 m).

CAUTION

EMI Noise Introduction.

Risk of erratic system operation.

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. During installations, try to avoid areas of high EMI noise. Run DWM wiring separately from 50 Vac or greater power wiring.

WARNING / CAUTION

Risk of electric shock or equipment damage!

►Do not touch any live parts inside the DWM housing.

►Disconnect the power supply before making connections to or removing connections from the DWM's terminals.

►Do not reconnect the power supply until you have completed the installation.

►If the DWM is powered via terminal 8 and connected to earth ground, then the cable must be shielded.

►Observe precautions for handling electrostatic sensitive devices.

Table 1. Types of DWM

	sensor1	setpoint	bypass	fan override
T7560A	Tmp	wheel	button	button
T7560B	Tmp/Hum	wheel	button	button
T7560C	Tmp/Hum	-	-	-

1 Tmp = Temperature sensor; Hum = Humidity sensor

Table 2. Controller SW requirements for powering via terminal 5 and new LCD signaling

VAV	Fan Coil Unit		Hydronic	Chilled Ceiling
W7751H	W7752	W7754	W7762	W7763
1.02.15	1.00.04	1.00.02	1.00.03	1.00.03

NOTE: A software module (ModAL module GNRSC02A) is available to adapt the DWM to the respective Excel 20, 50, 100, 500, 600, or 800 controller, making any further configuring obsolete. Contact your local Honeywell distributor for further details.

DWM DISASSEMBLY

The T7560A,B,C comes packed with a sub-base that mounts separately for ease of installation. The cover is fixed by a latch on the underside of the unit. Remove the cover as shown in Fig. 1 (T7560A,B) or Fig. 2 (T7560C):

1.Insert the tip of an awl or a similar narrow, pointed object into the small hole in the latch (T7560A,B) or simply depress the latch by hand (T7560C).

2.Pry off the cover.

Fig. 1. DWM disassembly (T7560A,B)

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Copyright © 2009 Honeywell Inc. • All Rights Reserved	EN1B-0146GE51 R0309B

T7560A,B,C DIGITAL WALL MODULES

Fig. 2. DWM disassembly (T7560C)

INSTALLATION

Mount the DWM on an inside wall approximately 54 in. (1.3 m) from the floor (or as specified on the installation

drawings) to allow exposure to the average zone temperature. Do not mount the DWM 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 DWM is furnished with a terminal block; all field wiring connections are made to these eight terminals.

The DWM has to be mounted in vertical position with the LCD display to the top.

Mount the subbase directly on a wall (see Fig. 3) using the type of screws appropriate for the wall material.

Fig. 3. Mounting of DWM (T7560A,B shown)

See Fig. 6 for T7560A,B,C mounting dimensions.

Wiring

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.

IMPORTANT

Deviation from this rule can result in improper electrical contact. See Fig. 4.

3. Verify DWM is wired according to Fig. 4.

NOTE: For specific wiring requirements, see the following Power section.

Terminals

1 = Common

2 = Temperature sensor

3 = Setpoint (T7560C: Do not connect!)

4 = Bypass/fan* (T7560C: Do not connect!)

5 = LED input (T7560C: Do not connect!)

6 = Bypass** (T7560C: Do not connect!)

7 = Humidity output

8 = 24 Vac / 22 Vdc input

	* With Excel 10 Controllers:
	W7750 (CVAHU), W7752 (FCU),
	and XL12
2	** With Excel 10 Controllers:
	W7751H (VAV), W7762 (HYD), and
	W7763 (CHC)

For W7753 (UV) and W7761 (RIO), see NOTE below.

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Fig. 4. Wiring of DWM

NOTE: If connected to W7753 (UV) Controller, both terminals 4 and 6 must be connected.

W7761 Remote I/O Controller supports only terminals 2 (temperature), 7 (humidity), and

1 (common), as well as terminal 8 as voltage supply.

Wiring with terminal 8 is not necessary if:

a)an FCU or CHC controller with software is connected (see table 2); or

b)an Excel 500 with 6V/8V/10V signaling from the controller is used.

The T7560A must then be powered by terminal 5.

Power

The DWM can be powered as follows:

•T7560A: preferably via the 5 V LED input (terminal 5); via terminal 8 is also possible

•T7560B,C: via the 24 Vac/dc input (terminal 8).

IMPORTANT

The DWM can be powered only via terminal 5 with those controllers listed in Table 2, and if a

SW version listed in Table 2 or higher is installed. If the DWM is powered via terminal 5, the Excel 10 controller must be configured for LCD_DISPLAY (LED output continuously ON).

NOTE: The 24 Vac power supply is needed only with the T7560B,C DWM (for the humidity sensor).

EN1B-0146GE51 R0309B

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