Advanced Pressure Monitor II Rough-In Installation
Installation Overview
5
MKT-0262 MPC-1748 Rev 02/13
APM2 Rough-In Installation Guide
If an external sensor will be used then run the pressure signals (room and reference) to the remote transducer.
Figure 1-3.
Pressure Pickup Port Installation
1.3.4 Use of External Transducers
The APM2 has the option to use the internal pressure sensor or external pressure transducers (ordered
separately). If external pressure sensors are being used then no tubing needs to be run into the electrical box.
Instead the remote pressure transducer will be separately mounted, plumbed and wired. Only the wire for the
analog output of that transducer(s) will be run to the APM2. If two rooms are being monitored, you have the
choice to use the internal pressure sensor and an external (remote) transducer for the second room, or two
external remote transducers may be used and wired to the analog inputs in the back of the unit.
NOTE:
See Phoenix Recommended Cables
on page 33 for approved cable manufacturers and wire types.
Layout the system in terms of wiring:
•
Power: 24 Vac, 9 VA
•
Annunciator/relay: remote alarm wiring if being used
•
Analog output: 0-5 or 0-10 Vdc or 4-20 mA.
•
Analog Input wiring: there are two analog inputs that can be used to bring signals from remote pressure
transducers
•
Digital Input: the digital input can be used as a door status indication, these would be wired to a door switch
mounted in the door jamb.
Once the installation has been planned, locate and mount the electrical box and bring all tubing, power, earth
ground, analog input, digital input, relay/annunciator, analog output communications wiring into the triple
gang box.