Technical data

Envoy Installation, Commissioning & Operating Manual

Engineering Options Continued

PCENV-1Z-5 (hy-spec single zone card)

PCENV-3Z-5 (Three zone budget zone card)

Switch Function when ‘off’ Function when ‘on’

1 Zone latching Zone non latching

2 Short circuit = fault Short circuit = fire

3 Detector removal, standard Schottky

diode base

Zener diode head removal

4 Zone operates all aux relays Zone operates own aux relay only

5 Conventional operation Twin wire operation, use SNDR CCT

Switch Function when ‘off’ Function when ‘on’

1 Zone 2 latching Zone 2 non latching

2 Zone 3 latching Zone 3 non latching

3 Zone 4 latching Zone 4 non latching

4 Zones 2-3-4 short circuit = fault Zones 2-3-4 short circuit = fire

5 Zones 2-3-4 detector removal, standard

Schottky diode base

Zones 2-3-4 zener diode head removal