Honeywell ADEMCO 5821 - Page 3

3
Table 1: 5821 Operating Mode Choices
✝ When the 5821 is used with either external probe, an open-circuit or a short-circuit of the probe’s wiring results in an alarm on that loop,
and a trouble condition on all other programmed loops.
✝✝ Use a maximum wire length of 48 inches between the 5821 and the 470PB probe.
Operating Mode
Dip
Switch
Setting
Loop
Faults when… Restores when…
External
Probe
✝
Cold Temp Sensing
SW1=OFF
SW2=OFF
1
temperature drops below 45°F
(7°C) for >10 minutes.
temperature rises 48°F (9°C) for
>4 minutes.
No external
probe
Hot Temp Sensing
SW1=OFF
SW2=OFF
2
temperature rises above 95°F
(35°C) for >10 minutes.
temperature drops below 92°F
(33°C) for > 4 minutes.
No external
probe
Warm Temp
Sensing
SW1=ON
SW2=OFF
2
temperature rises above 75°F
(24°C) for >10 minutes.
temperature drops below 72°F
(22°C) for > 4 minutes.
No external
probe
Freezer Temp
Monitoring
SW1=OFF
SW2=ON
2
temperature rises above 10°F
(-12°C) for >30 minutes.
temperature drops below 7°F
(-14°C) for > 4 minutes.
Use T280R
external probe
Refrig. Temp
Monitoring
SW1=ON
SW2=ON
2
temperature rises above 42°F
(6°C) for >30 minutes.
temperature drops below 39°F
(4°C) for > 4 minutes.
Use T280R
external probe
Flood Sensing
SW1=OFF
SW2=ON
3
external probe tips are in
contact with water for >3
minutes.
probe tips have not been in
contact with water for > 3
minutes.
Use 470PB ext.
probe shunted by
2.2MΩ resistor ✝✝
Cold Temp Sensing
&
SW1=ON 1=Cold
temperature drops below 45°F
(7°C) for >10 minutes.
temperature rises 48°F (9°C) for
>4 minutes.
Warm Temp
Sensing
SW2=OFF 2=Warm
temperature rises above 75°F
(24°C) for >10 minutes.
temperature drops below 72°F
(22°C) for > 4 minutes.
No external probe
Cold Temp Sensing
&
SW1=OFF 1=Cold
temperature drops below 45°F
(7°C) for >10 minutes.
temperature rises 48°F (9°C) for
>4 minutes.
Hot Temp Sensing SW2=OFF 2=Hot
temperature rises above 95°F
(35°C) for >10 minutes.
temperature drops below 92°F
(33°C) for > 4 minutes.
No external probe
Cold Temp Sensing
&
SW1=ON 1=Cold
temperature drops below 45°F
(7°C) for >10 minutes.
temperature rises 48°F (9°C) for
>4 minutes.
Refrig. Temp
Monitoring
SW2=ON 2=Refrig
temperature rises above 42°F
(6°C) for >30 minutes.
temperature drops below 39°F
(4°C) for > 4 minutes.
Use T280R
external probe
Cold Temp Sensing
&
SW1=OFF 1=Cold
temperature drops below 45°F
(7°C) for >10 minutes.
temperature rises 48°F (9°C) for
>4 minutes.
Freezer Temp
Monitoring
SW2=ON 2=Freezer
temperature rises above 10°F
(-12°C) for >30 minutes.
temperature drops below 7°F
(-14°C) for > 4 minutes.
Use T280R
external probe
Cold Temp Sensing
&
SW1=OFF 1=Cold
temperature drops below 45°F
(7°C) for >10 minutes.
temperature rises 48°F (9°C) for
>4 minutes.
Flood Sensing SW2=ON 3=Flood
external probe tips are in
contact with water for >3
minutes.
probe tips have not been in
contact with water for > 3
minutes.
Use 470PB
ext. probe shunted
by 2.2MΩ resistor
✝✝