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MKT-0262 MPC-1748 Rev 02/13
Advanced Pressure Monitor II Rough-In Installation
Wiring
Figure 1-6. Rear View of the APM2 (Analog) Showing Wiring and Plumbing Connections
The back of the APM2 has electrical connectors labeled with their function. The mating electrical connectors
(supplied) are color coded and labeled with the matching function.
1.5.1 Power, Labeled POWER, L1, L2, Ground Symbol
Starting with the 3 pin Power connector:
1. Connect the 24 Vac lines to L1 and L2.
2. Connect a ground wire, GND, from the ground lug to the GND on the connector.
3. Install Connector.
The APM2 operates at 18-32 Vac, 50/60 Hz and consumes 2.6 W nominal, 9.6 W max.
1.5.2 Analog Output, Labeled ANL OUT
If using the analog output and want Voltage output, connect to the terminals labeled VDC and COM.
If using the analog out and want a 4-20 mA signal, connect to terminals labeled mA and COM. Connect this
output to the BMS system or other monitoring device.
ANALOG (ANL) OUTPUT
COM COM
mA Current Output (4-20 mA)
Vdc Voltage Output (0-5 Vdc, 0-10 Vdc)
INPUTS (wired to door N.O. contact)
COM COM Door
DI Digital Input
COM COM Analog Input2
IN2 Analog Input2 (0-5, 0-10Vdc)
+15 15 Vdc
COM COM Analog Input1
IN1 Analog Input1 (0-5, 0-10Vdc)
+15 15 Vdc
Earth Ground
L1 24 Vac
L2 24 Vac
HIGH or room pressure tubing
connects here
LOW or reference pressure tubing
connects here
POWER
RELAY
COM COM
+15 +15 Vdc
NO Normally Open
RC Relay COM
NC Normally Closed
COM NOT AVAILABLE
B (+)
A (-)
GND
REAR VIEW
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General