Siemens HTRI-S - Wiring the Addressable Interface Module; Power Limited Wiring Requirements; HTRI-R Control Module Barrier Installation

Siemens Building Technologies
Fire Safety
P/N 315-033300-22
(Refer to Figure 3.) Follow the instructions in the DPU Manual (P/N 315-033260) to
program the HTRI to the desired address. Record the device address on the label
located on the HTRI front panel. The HTRI can now be installed and wired to the
system.
WIRING (Refer to Figures 4 -9 ) Refer to the appropriate wiring diagram below and wire the
addressable interface module accordingly.
Recommended wire size: 18 AWG minimum
14 AWG maximum
Wire larger than 14 AWG can damage the connector.
Power Limited Wiring In compliance with NEC Article 760, all power limited fire protective signaling conduc-
tors must be separated a minimum of ¼ inch from all of the
following items located within an outlet box:
 electric light
power
 Class 1 or non-power limited fire protective signaling conductors
To meet the above the requirements, the following guidelines must be observed
when installing this interface module.
If power limited wiring is not used within this outlet box, then these guidelines do
not apply. In that case, be
sure to follow standard
wiring practices.
HTRI-R Control Module The HTRI-R Control Module
Barrier must be used when
the HTRI-R relay contacts are
connected to non-power
limited lines. Install the
thermal plastic barrier
diagonally into the backbox
to create two separate
compartments within the
backbox to separate the
wires, as shown in Figure 4.
Figure 3
Wiring Switches
Figure 4
Installing the HTRI-R Control Module Barrier
Barrier
NOTES:
1. There can be any number of normally closed or normally open switches.
2. The end of line resistor must be located at the last switch.
3. Do not wire a normally closed switch across the end of line resistor.
4. Only for use with security and status applications.
5. Do not use N.O. switches for security applications.
NORMALLY OPEN SWITCHES
(SEE NOTES 2, 3 AND 5)
END OF LINE
RESISTOR
3.6K, 1/4W
NORMALLY CLOSED SWITCHES
(SEE NOTE 4)
ENDOFLINE
RESISTOR
3.6K, 1/4W
BACKBOX
TABS
FACE
OUT
4.5 in
2.0 in
2.5 in
0.375 in
5.25 in
3.25 in
1.187 in
0.75 in
USE P/N 330-096393
FOR DOUBLE GANG BOX
USE P/N 330-096384
FOR 4-INCH SWITCHBOX