Installation guide

ZONE TYPES cont.

TECH: This zone type is used to provide supervisory monitoring of non-burglary conditions

L (e.g., freezer monitor, boiler flame-out, building temperature, etc.). You may use normally

closed switches (2 EOL) or normally open switches (1 EOL) or a mixture of both. If the Audible

Tech variable (page 49) is set to one (1) and the Alert & Display variable (see page 49) is set to

one (1) for an attended site, then the piezo-sounder will beep and the display will show a flashing

zone description. A TECH zone alarm can have two distinct outputs: you may use an individual

output C- LEM to give a one-for-one dry contact that follows the state of the zone input (e.g.,

alarm equals contact closure, restore equals contact open) or you may choose to have a

group-following

L output C-LEM 12 that will respond to any zone labelled TECH. The group-following output

C-LEM will reset only when all TECH zones are normal. To avoid conflict with the pre-

programmed outputs 1 through 19 and the area 1 through 8 C-LEMs (see page 28), TECH

zones should be between 45 and 54. If not all areas are used (say areas 5 through 8), then

TECH zones 25 through 28 would be permitted. If you require more Tech zones, contact the

factory for programming assistance. For example, TECH zone 7 would operate TIMED

BELL output relay 7 and individual output C-LEM 7. To avoid this conflict, notice that TECH

zone 45 will only operate output C-LEM 45. When TECH zone 45 restores, output C-LEM 45

will also reset. The group-following output C-LEM is rigidly assigned. For example, if TECH

zone 45 alarms, the group-following TECH output C-LEM 12 will operate; however, if TECH

zone 46 alarms at a later time, there will be no further action from output C-LEM 12 since it is

already operated. When all TECH zones restore, output C-LEM 12 will reset.

FIRENO: This normally open zone type is used with smoke detectors, manual-pull stations, fire

alarm thermostats, fire alarm control panel alarm relays, etc. The normally open contact is wired

as a two-wire, single end-of-line resistor loop. Contact closure will operate FIRE ALARM panel

relay output 2 and output C-LEM 2 and cause the piezo-sounder to beep, the event to be logged

and the display to show the flashing alert message ** FIRE ALARM ** , alternating with a

flashing zone description. The loop wiring of a FIRENO zone is also supervised for trouble

conditions. A break in the loop wiring (disconnect) will operate FIRE TROUBLE panel voltage

output 5 and output C-LEM 5 and cause the event to be logged and the display to show the

flashing alert message ** FIRE TROUBLE **, alternating with a flashing zone description. If

the Alert & Display variable is set to one (1), then the piezo-sounder will beep. When all

FIRENO loops are normal (not disconnected or shorted), FIRE TROUBLE panel voltage output

5 and output C-LEM 5 will restore. NOTE: For monitoring the trouble relay on a fire alarm

panel, use another FIRENO zone. Connect one wire from the LEM zone input to the C terminal

of the normally closed trouble relay. Connect one end of a 2200-ohm resistor to the N/C

terminal. Connect the other end of the 2200-ohm resistor to the remaining input of the LEM zone

input. An alarm on the trouble relay will cause a DISCON condition of the zone input and this in

turn will create the required FIRE TROUBLE condition of the panel. Do not connect the

trouble relay in series with the alarm relay above as the supervision of the alarm relay

wiring should only indicate trouble on the alarm relay circuit.