CAUTION
Once all the detector bases have been wired and mounted,
and the loop wiring has been checked, the detector heads
may be installed in the bases. The shorting spring in the
base will disengage automatically when the detector head
is removed from the base. DO NOT remove the shorting
spring since it reengages as the detector head is fully
turned into the base, completing the circuit.
Tamper-resistance Feature
Do NOT use the tamper-resistance feature if the XR2
Removal Tool will be used.
This detector base includes a tamper-resistance feature that
prevents removal of the detector without the use of a tool.
To activate this feature, break off the tab on the detector
base shown in Figure 3A, then install the detector. To
D150-01-00
3
I56-599-03R
Figure 2. Typical wiring diagram:
(+) POWER LOOP
2-WIRE CONTROL PANEL
(–) POWER LOOP
3
2
4
5
1
12
13
14
COM CONTACT
N.C. AUXILIARY
N.O. FORM C
E
O
L
CLASS A OPTIONAL WIRING
A78-1577-00
remove the detector from the base once the tamper-resist-
ance feature has been activated, place a small-bladed
screwdriver into the small hole on the side of the base and
push plastic lever away from the detector head (see Figure
3B). This will allow the detector to be rotated counter-
clockwise for removal.
NOTE:
Head removal after the tamper-resistance feature
has been activated requires removal of the decora-
tive ring.
The tamper-resistance feature can be defeated by breaking
and removing the plastic lever from the base, however this
prevents using the feature again.
PLASTIC LEVER
BREAK TAB AT
DOTTED LINE BY
TWISTING TOWARD
CENTER OF BASE.
USE SMALL-BLADED
SCREWDRIVER TO
PUSH PLASTIC LEVER
IN DIRECTION OF
ARROW.
A78-1175-03
Figure 3B. Removing detector head from base:
Figure 3A. Activating tamper-resistance feature:
