Honeywell EXCEL ADT-HRSI - Manual (Page 3)

ADT-HRSI INTELLIGENT HEAT DETECTOR
3 74-3346
Accessories:
All detector mounting bases have wiring terminals that are
accessible from the "room-side" after mounting the base to
the electrical box. The bases mount to North American 1-
gang boxes and to 3-1/2 in or 4 in octagon boxes, 1-1/2 in
(38 mm) deep. They also mount to European BESA and
1-gang boxes with 60.3 mm fixing centers.
Removing a detector from its base (except isolator base)
does not affect other devices operating on the same circuit.
Standard Base SIGA-SB:
This is the basic mounting base for Honeywell Signature
Series detectors. The SIGA-LED Remote LED is supported
by the Standard Base.
Relay Base ADT-RB:
This base includes a relay. Normally open or closed
operation is selected during installation. The dry contact is
rated for 1 amp (pilot duty) at 30 Vdc. The relay's position is
supervised to avoid accidentally jarring it out of position. The
relay base does not support the SIGA-LED Remote LED.
The relay is controlled by the detector and operates as
follows: at system power-up or reset, the relay is de-
energized.
When a detector is installed in the base with the power on,
the relay energizes for 4 seconds, then de-energizes. when a
detector is removed from a base with the power on, the relay
is de-energized. When the detector enters the alarm state,
the relay is energized.
Isolator Base ADT-IB, ADT-IBS:
This base includes a built-in line fault isolator. A detector
must be installed for it to operate. The integral isolator relay
is controlled by the detector or the loop controller. A
maximum of 96 isolator bases can be installed on one
circuit. The isolator base does not support the SIGA-LED
Remote LED.
The isolator operates as follows: a short on the line causes
all isolators to open within 23 msec. at 10 msec intervals,
beginning nearest the loop controller, the isolators close to
provide the next isolator down the line with power. When the
isolator next to the short closes, it reopens within 10 msec.
In Class A operation, the process repeats beginning on the
other side of the loop controller.
Remote LED SIGA-LED:
The remote LED connects to the SIGA-SB Standard Base
only. It features a North American size 1-gang plastic
faceplate with a white finish and red alarm LED.
SIGA-TS Trim Skirt:
Supplied with 4 in bases, it can also be ordered separately to
use with the other bases to help hide surface
imperfections not covered by the smaller bases.
Application:
Table 1 below shows six standard test fires used to rate the
sensitivity of smoke and heat detectors. The table indicates
that no single sensing element is suited for all test fires.
Table 1. Test Fires.
Test Fire Type of Sensor
ADT-ISI
Ion
ADT-PSI
Photo
ADT-HRSI
Rate-of Rise/
Fixed Temp.
ADT-PHSI
Photo/ Heat
3D
ADT-IPHSI
Ion/ Photo/ Heat
4D
Open Wood Optimum Unsuitable Optimum Very Suitable Optimum
Wood Pyrolysis Suitable Optimum Unsuitable Optimum Optimum
Smoldering Cotton Very Suitable Optimum Unsuitable Optimum Optimum
Polyurethane Foam Very Suitable Very Suitable Suitable Very Suitable Optimum
n-Heptane Optimum Very Suitable Very Suitable Optimum Optimum
Liquid Fire without Smoke Unsuitable Unsuitable Optimum Very Suitable Very Suitable