Table 2-26 Indicator description
Item Color Status Description
Indicators Red Steady on Enters alarm
status
Blinking Enters monitoring
status
Table 2-27 Technical specications of the heat detector
Technical
Specications
Heat Detector
Conguring model 55000-121-EH/
55000-121-WZ
JTW-ZD-920
Dimensions 100 mm diameter x 50
mm height (with base)
100 mm diameter x 56
mm height (with base)
Operating voltage Supply voltage: 9 V to 33
V
24 V
Net weight Approx. 80 g Approx. 65 g
Alarm category A1R A2R, 54°C to 70°C
Enclosure material Polycarbonate, white ABS, white
Cabling mode Polarized two-wire
system
Non-polarized two-wire
system
Operating current Monitoring status < 55
μA @24 V DC; alarm
status < 52 mA
Monitoring status < 300
μA; alarm status < 1.5
mA
Operating temperature –20°C to +90°C –10℃ to +50℃
Humidity ≤ 95% RH (non-
condensing)
≤ 95% RH (non-
condensing)
Installation mode Ceiling-mounted Ceiling-mounted
Encoding mode No encoding The encoder can be used
for onsite encoding. The
address ranges from 1 to
324.
Protected area
About 50 m
2
(storey
height ≤ 8 m), referring
to GB50116-2013 Code
for Design of Automatic
Fire Alarm System
About 30 m
2
(storey
height ≤ 8 m), referring
to GB50116-2013 Code
for Design of Automatic
Fire Alarm System
Applicable base 45681-200 DZ-916
LUNA2000-2.0MWH Series Smart String ESS
User Manual 2 Overview
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