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Heritage Medcall Sentry Emergency Call System
Model 560B Smoke Detector
Installation and Service Instructions
430-560B 0305 ©HeritageMedCall,Inc. Issue1,March2005
SMOKEDETECTOR TROUBLE
A detector malfunction is displayed on the console
screenas “Smoke Trouble”. The hostpanel will send
this trouble signal when the circuit to the detector’s
End-Of-Lineresistor orSmoke Loadresistor opens.
When the console receives and displays a smoke
detector trouble signal, note that the host panel in
that apartment is functioning correctly.
Whenutilizing the Model HM-569 EOLdevice the
module electrically connects a 3300 ohm EOL
resistor only when the detector is powered by at least
9 volts. This EOL device will enable the console to
sense Smoke Detector Trouble if voltage to the last
detector is lost or the EOL device is disconnected.
To operate a host panel with a smoke detector and
NOT display Smoke Detector Trouble on the
console screen, the smoke detector must:
1.Have anEOL resistor(HM-568) 3.3K
resistor across the alarm contacts.
2.Have a Smoke Load Resistor(HM-585)
1.2K resistor across the power terminals.
3. Use a model HM-569 EOL device in place
of1 and 2above.
TheModel HM-560BPhotoelectric smokedetector
normally draws 70uA DC. It operates at 9 to 16 volts
and is powered by the host panel. When the horn is
soundingthe current draw is 10mA. Multiple detector
installationswill have multiplesof these currents
dependingon thenumber of detectors.
TROUBLESHOOTING
When Smoke Trouble shows on the screen, the
following steps can be taken to quickly diagnose the
cause.
NOTE: Thisprocedure assumes the host panel is
functioningproperly and that the apartmentnumber
appears only as Smoke Trouble.
Goto the apartment. Checkfor detector operation as
described in SMOKE TEST at each detector. Normal
Operationwill soundthe hornafter applying smoke for
20 seconds.
NOTE: Whenmultiple smoke detectorsare present in
the apartment, any one detector’s alarm will cause
the others to sound.
If the smoke detector(s) do not sound, most likely the
DCpower hasbecome disconnected.Check wiring
andcheck forDC voltage atthe detector(s)DC Power
screw terminals. The DC voltage must be at least 10
volts.
Ifthe detector hasthe proper voltageand still does
not sound after the smoke test the detector is
malfunctioningand mustbe replaced.
Ifthe detector(s) operatenormally, the wiring to the
alarm contacts or the EOL device or resistor is most
likely the cause. Repair or replace the wiring, the EOL
deviceorresistor.
Removethe positivewire from the + DCPower
terminal.Check forDC voltage acrossthe alarm
contacts. It should read about 6 volts. Check all
detectors in the circuit. When the EOL device or
resistoris removed, the DC voltageacross the alarm
contacts should read 12 volts. If the reading is zero,
wiring to the host panel has an open on one of the
alarmsignal wires.Repair or replace the defective
wiring.
CONSTANT ALARM OR FALSE ALARM
Photoelectric smoke detectors can sometimes false
alarm if dirt or dust gets into the sensing chamber. If a
detector is in constant alarm, follow the procedures in
theMAINTENANCE section. If the alarmdoes not
clear,the detector will need replacement.
SPECIFICATIONS
Operatingtemperature ....32°Fto 100°F(0°C to38°C)
Operatinghumidity range ... 0 to95% non-condensing
Sounder specifications ..................... 85dB at 10 feet
Field wiring size .................................... 14-24 AWG
Self-diagnostic indication ..... typ. 27 hours after reset
Heat detector ........... fixed temp 135°F, 50 foot (15m)
spacingrate-of-rise 15°F/min> 105°F (8°C/min >
41°C)
Alarm contacts ............. 500mA @ 36VDC (resistive)
Dimensions .....6.1” (15.5cm) diameter x 1.9” (4.7cm)
deep
Weight .......................................... 8.8 oz. (0.25kg)
Color ............................................................. white
