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MACH-Air™ VAV Controller
2002 Reliable Controls™ Corporation
Inputs
Inputs
The MACH-Air™ VAV controller is designed with six inputs:
!
Three inputs are configurable universal inputs
!
Three inputs are dedicated inputs
Universal Inputs
Inputs one, two, and three (IN1, IN2, IN3) are universal inputs
that can be configured as digital (binary) or analogue
(modulating). These inputs can be configured to accept
0-5 VDC, 4-20 mA, or thermistor/dry contact devices. Refer to
‘Jumper Settings’ below.
!
Each universal input can be connected to a
two-wire input device (temperature sensor,
pressure transducer, etc.)
!
Connect the input ‘signal’ to the positive (+)
terminal and the input ‘common’ to the
corresponding negative (-) terminal
IN1+
IN1-
IN2+
IN2-
IN3+
IN3-
MACH-Air™ Inputs
The maximum voltage measured
by an input is 5 VDC.
IN1+
GND
IN2+
IN3+
GND
MACH-Air-T™ Inputs
