Honeywell Touchpoint 4 Manual

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)11
Follow the advice of:
• experts having specialist knowledge of gas detection and control systems 
• experts having knowledge of the process plant system and equipment involved
• safety and engineering personnel
Always record the location of the detectors connected to the controller.
Dimensions
Enclosure
Note Diagram not to scale 

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)12
Rear Panel Detail
Mounting Bracket
Mounting
Hooks
Thickness = 5.3 mm (0.2”) max.
172.0 mm (6.8”)
86.0 mm
(3.4”)
228.0 mm
(9.0”)
198.0 mm
(7.8”)
268.0 mm (10.6”)
12.0 mm (0.5”)
Note Diagram not to scale. 

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)13
Mounting
Touchpoint 4 is supplied with a mounting bracket that fits onto a suitable wall. The controller is
then hooked onto the bracket. The previous diagrams show dimensions for the enclosure and the
bracket. Fit the bracket to a flat, firm surface, e.g. wall, suitable for the controller’s size and weight.
1 Mark out and drill holes for the mounting bracket screws.
Use the mounting bracket as a template for the position of the holes. Use 4 off M3.5 x25...

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)14
This procedure describes how to access the components inside the controller.
1 Loosen the single screw securing the Terminal Module Access Panel.
2 Push down on the finger grips located at the top of the panel.
See previous diagram.
3 Slide the panel down to release it. 
4 Pull the panel outward.
Pull it until the door is approximately at a right-angle to the enclosure.
5 Push the panel inward toward the enclosure.
This locks it in the open position and...

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)15
To access the connections on the terminal blocks, slide the clear plastic cover fitted over
them off.
The plastic cover can be completely removed if required. 
6 After carrying out the procedures subsequently described close and secure the 
Terminal Module Access Panel with the screw.
Caution Always ensure the Terminal Module Access Panel is replaced/
refitted after work is complete.
Power
Touchpoint 4 has an auto sensing power supply capable of operating...

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)16
Wiring
Caution An earth point is provided inside the controller. Ensure that all 
detector screens/armor are grounded at a single earth star point at 
the controller or detector — BUT NOT BOTH — to prevent false 
alarms due to earth loops.
All electrical wiring connections are made via the Terminal Modules. 
Wire size from 0.5 to 2.5 mm
2 (20 AWG to 14 AWG). 1.0 mm2 is preferred. 
Star Ground/Earth PointNeutral
Live
Earth
+ve
Signal
-ve AC Supply
Gas...

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)17
Always use suitable wiring techniques and crimps when terminating cable cores, especially if
running two cores to a single terminal. 
Common controller connections are made at the Terminal Module for the Common Module.
Connections for each detector are made at the Terminal Module for each Channel Module. 
Common Module Wiring
Signals and DC power are connected to a 20-wire terminal block, and mains power is connected
via a 3-wire terminal block on the...

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)18
The following diagram shows the 3-wire mains terminal block layout with terminal identifiers. Id. Name FunctionInput/
OutputSpecification
4N/O ContactNO
Alarm Relay 1 Output 240 Vac, 3A max. 5CommonC
6N/C ContactNC
7N/O ContactNO
Alarm Relay 2 Output 240 Vac, 3A max. 8CommonC
9N/C ContactNC
10N/O ContactNO
Fault Relay Output 240 Vac, 3A max. 11CommonC
12N/C ContactNC
13DC Power+DCDC supply/
battery back-upInput19~30 Vdc, 
63Wdc max
14
RS485D+RS485...

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)19
 
The table lists the mains terminals and their functions and specification.
RS485 connection
This link is for serial connection by RS485 link to other control equipment. The link settings can
be configured for address and data rate, 
see page 46. For signal wiring contact 
Honeywell Analytics for further details. For the communication protocol manual, please visit our
website at www.honeywellanalytics.com or contact one of our representatives.
Remote...

   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)20
Four audio/visual signals are output in addition to the common relays. They are for connection
to remote audio/visual devices. The outputs are A1, A2, F with a common master alarm. 
Channel Module Wiring
Detector power, signal, relay and repeated isolated 4-20 mA connections are made via 8-wire
and 3-wire terminal blocks on each Terminal Module
The following diagram shows the 8-wire terminal block layout with terminal identifiers
 
The table lists the...