HCA Series Installation Manual
Page 36 of 58
V2.15
ZONE 1 RELAYS
12-
In this example, the screen shows that the zone 1 will activate relays 1 and
2, but not relay 3. A dash indicates that the relay will not activate. Select
keys 1 through 3 to toggle the activation for each programmable relay.
5.2.2 Shorted Zone Mode
The HCA panel provides a programming option which determines the behavior of shorted zones. Most
smoke detectors do not apply a zero ohm dead short impedance across the zone when they provide an
alarm condition. Manual pulls stations on the other hand are typically constructed to provide a zero ohm
impedance or an impedance that is similar in value to what a smoke detector would apply across a zone
when in an active state. If you are using manual pull stations that apply a zero ohm dead short
impedance when activated you want to select Yes to the
“Shorted Z=Alarm?” question for this
programming option. If you are using manual pull stations that apply an impedance above 220 ohms
across the zone when activated you may want to select No to the “Shorted Z=Alarm?” programming
question. If you select no, zones that are completely shorted will be interpreted as being in trouble and
not alarm. This programming option defaults to interpreting shorted zones as alarm (Yes).
ZONE SETUP MENU
2-Short Mode Nxt
Select 2 to edit the shorted zone mode option. Press Next to go back to
the zone edit option.
The screen below will display when 2 is selected.
Shorted Zn=Alarm
Yes
Select Yes to interpret shorted zones as an alarm. Select No to interpret
shorted zones as a trouble.
5.3 Notification Appliance Circuit (NAC) and Relay Programming
Each powered output circuit can be individually programmed as either a notification appliance circuit
(NAC), resettable auxiliary power circuit, continuous auxiliary power circuit or door holder auxiliary power
circuit.
Select option 3 from the main programming menu to edit the NAC and programmable relay options.
PROGRAMMING MENU
3-Outputs, Nxt
Pressing 3 will select the output programming menu. Pressing the Next
key will display the next programming menu option.
The first screen for editing the outputs and relays is below.
OUTPUT SETUP
1NAC 2RELAY Next
Select 1 from the output menu for NAC programming
5.3.1 Reserved
5.3.2 NAC Programming
