Controller inputs and outputs, Vav/cav controller technical guide 5, General – Orion System MUA II Controller User Manual

Page 5: Mua ii controller analog inputs, Figure 4: mua ii controller component locations, Input #1: reset temperature sensor, Input #2: supply air temperature, Input #3: remote occupied contact

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VAV/CAV Controller

Technical Guide

5

RS-485
Communications
Loop Connection

Typical
Pin 1
Indicator

RAM
Chip

EPROM
Chip

PAL
Chip

RS-485
Communications
Driver Chip

Real Time
Clock Chip

Mounting
Backplate

Mounting Hole
Typ of 4

Comm
LED

Power
LED

Not
Used

Diagnostic
Blink Code
LED

Modular Service
Tool - Mini Din
Connector

Address Switch

Pull-up Resistors
For Analog Inputs

Analog Input
And Output
Terminal Block

24 VAC
Power Input

EEPROM

Relay Output
Terminal Block

Pressure Sensor

(AIN6 Modular Connection)

Expansion Board
(Modular Connection)

Not Used

RL

Y1

D1

D2

D3

D4

D5

CX3

RAM

EPROM

C3

C2

U6

CX6

C1

CX2

U2

U3

PAL

CX4

U4

TUC-5R PLUS

YS101816 REV. 2

V1

V2

V3

V5

V4

TB2

4

NETWORK

TOKEN

16

32

8

SW1

ADD

2

1

ADDRESS

V6

POWER

GND

24VAC

L1

D16

R6

C9

SC1

R1

1

U1

1

D13

C16

VR2

TB4

R27

C13

R10

VR1

C19

C18

U8

CX8

U9

X1

R7

D10

R13

D12

C7

CX10

U10

CX12

U12

U14

CX14

PJ3

PJ2

PJ1

EXPANSION

PRESSURE
SENSOR

T'STAT

C17

D15

R26

C20

R25

R24

R22

U15

CX13

U13

C15

R19

R15

C14

D18

D17

PU1

PU2

PU3

PU4

PU5

PU7

D6

D7

D8

D9

D11

D14

C12

C10

0-5

VDC

0-1

VDC

JP1

C1

1

X2

GND

TB3

INPUTS

GND

GND

+VDC

AIN1

AIN2

AIN3

AIN4

AIN5

AOUT1

AOUT2

AIN7

RN4

1

RN5

RS-485

CX5

U5

R

TB1

SHLD

T

COMM

COMM

RN3

1

RN1

U1

CX1

1

LD6

COMM

PWR

LD7

LED1

LED2

LD9

LD8

R1

U7

RV1
VREF ADJ

R28

+VREF

5.11V

TEST POINT

EWDOG

D19

RN2

1

COM1-3

COM4-5

R5

R4

R3

R2

R1

RL

Y2

RL

Y3

RL

Y4

RL

Y5

CX15

(1 MEG)

HH

P1

C21

Figure 4: MUA II Controller Component Locations

General

The following inputs and outputs are available on the MUA II controller
and/or the relay expansion boards that can be added to the main control-
ler board expansion port. For component locations of the inputs on the
MUA II Controller see Figure 4. For wiring of inputs and outputs see
Figure 5 and 6.

MUA II Controller Analog Inputs:

Input #1: Reset Temperature Sensor

A space temperature sensor can be connected here and used for modu-
lation of the Supply Air Setpoint. At a specified Space Temperature
Setpoint the Supply Air Setpoint will be reset towards the Maximum
Supply Air Temperature Setpoint

Input #2: Supply Air Temperature

The Supply Air Temperature sensor is connected to this input. This
sensor is used to control heating and cooling staging.

Input #3: Remote Occupied Contact

This input can be configured to monitor a contact closure from another
building automation system, that indicates that the equipment should be
operating in the occupied mode. If the remote occupied signal is being
monitored, you must program all the internal schedules to be zero for
both the start and stop times on every day of the week.

Controller Inputs and Outputs

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