Reliable Controls MACH-Air User Manual

22
MACH-Air™ VAV Controller
 2002 Reliable Controls™ Corporation
Outputs
MA-T™ Dual Stage Triac Outputs
The MA-T™ model has a dual stage triac. The dual stage triac
can be connected to a two stage load.
! Both triac stages are OFF when
the output is commanded to 0
volts.
! The first stage triac (T1) is ON
when the output is commanded
to 5 volts.
! Both triac stages (T1 & T2) are
ON when the output is
commanded to 10 volts.
Connect the two stages as
shown in the diagram below.
Dual Stage Triac States
Voltage T1 T2
0OFFOFF
5ONOFF
10 ON ON
A OUT+
A OUT -
TRIAC 1
RTN-T1
DS1-T1
DS1-T2
RTN-DS1
IN1 +
24VAC
120VAC
Transformer
STAGE 2
STAGE 1

Reliable Controls MACH-Air Specifications

General

Brand	Reliable Controls
Model	MACH-Air
Category	Controller
Language	English