System Sensor SpectrAlert SP2R1224MCK Installation And Maintenance Instructions page 3

Table 2. Strobe current draw measurements – 12/24 Volt applications:
NOTE: A ll models were only tested at the 8-17.5 and 16-33 Volt-FWR/DC limits. This does not include the 80% low-end
or 110% high-end voltage limits.
Candela
Model No. Setting
SP2R1224MCK
15
Speaker/Strobe
15/75
30
75
110
Candela Selections:
Figure 3. For strobe candela selections, adjust slide
switch located on the rear of the product while
watching the viewing window on the side of the
reflector.
Viewing Window
NOTE: SpectrAlert Selectable Output strobes, set at 15 and
15/75cd, automatically work on both 12V and 24V
power supplies.
Mounting
1. Mount outdoor back box (supplied with product) in
desired location (see Figure 4).
2. Install 3 / ˝ NPT plug into unused conduit opening.
4
3. Complete field wiring.
4. Mount speaker to back box using 4 #8-32 × 1
#8-32 × 3 / ˝ screws supplied with product.
4
Figure 4.
3
/ ˝ NPT
4
Conduit
Entrance
A0347-00
D900-40-00
FWR Operating Current–Strobe
(mA RMS)
12V 24V
112 64
135 74
93
158
208
A0133-00
3 / ˝ and 2
8
firealarmresources.com
DC Operating Current–Strobe
(mA RMS)
12V 24V
127 59
127 69
90
160
209
NOTE: The strobe is not listed for 12V operating voltages
when set to 30, 75 or 110 candela. Use only those
settings marked as OK in this chart:
Candela equivalent at –40°C
and below:
15cd 3cd
15/75cd 20cd
30cd 9cd
75cd 27cd
110cd 46cd
When using a 12V panel, this device will yield required
light output only in the 15 or 15/75 candela setting.
NOTE: The outdoor notification appliance must be used
with the outdoor back box when installed in appli-
cations requiring the appliance to be outdoor-listed.
In such applications, using a back box other than
the outdoor back box supplied with the product will
void the UL designation.
3
1 / ˝ screws (4)
8
3
/
4
screws
3
Permissible Candela Settings:
Candela Operating Voltage
Setting
12V 24V
15 OK
15/75 OK
30
75
110
WARNING
ʺ
I56-2609-002R
OK
OK
OK
OK
OK