16
MKT-0262 MPC-1748 Rev 02/13
Fitting an APM2 in an APM100 Enclosure
Instructions
2.2.4 Wiring
Figure 2-4.
Rear View of the APM2
S
howing Wiring and Plum
b
ing 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.
Refer to the
Advanced Pressure Monitor II User’s Guide (MKT-0263)
for detailed wiring instructions.
2.2.5 Remotely Switching Alarm Setpoints
The APM100 model uses dry contacts to switch pressure setpoints between positive and negative, whereas the
APM2 uses an input voltage: 0, 5 or 10 Volts to switch pressure setpoints between negative-neutral-positive
respectively. If this function was used on the APM100 product, adaptations will need to be made to restore their
function with other equipment or devices that will generate the 0, 5 or 10 Volt signal.
ANALO
G
(ANL) OUTPUT
COM
COM
mA
Current Output (4-20 mA)
Vdc
Voltage Output (0-5 Vdc, 0-10 Vdc)
INPUTS (w
i
red to door N.O.
c
ont
ac
t)
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
HI
G
H
or
room
pressure tubing
contacts here
LOW
or
referen
c
e
pressure tubing
connects here
POWER
RELAY
COM
COM
+15
+15 Vdc
NO
Normally Open
RC
Relay COM
NC
Normally Closed
COM BACnet APM2-xx-EN
G
-BAC Produ
c
ts
B (+)
A (-)
GND
REAR VIEW
