Examples of i/o’s – Mammoth 2 to 6 Tons: High Efficiency, Superior IAQ Single Circuit Vertical (B-Vintage) User Manual

Page 15

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15

MAMM-WSHP-IOM-1BA (February 2012)

Examples of I/O’s

INPUTS

Point

Description

UD #1

+Pulse

BMS Supply Air, Duct Static Reset or Room Air Temperature Setpoint

UD #2

Room Air Temperature

UD #3

RTD/Therm/Dry

System Switch

Emergency Shut Down

Remote Start

UD #4

Contact, 0-10VDC,

High Static

Low Static

VFD in Bypass

UD #5

0-20MA

Economizer Lockout

Cooling Lockout

Heating Lockout

UD #6

  

Supply Fan Status

Compressor Fault

Condensate Overflow

UD #7

  

Duct Static Pressure or Airflow Switch

UD #8

  

Filter Static Pressure or Dirty Filter Switch #1

UD #9

  

Outside Air Temperature (AiSE Only)

UD #10

  

Condenser Water Temperature

UD #11

  

Entering Air Temperature or Return Air Temperature (AiSE)

UD #12

  

Supply Air Temperature

OUTPUTS

Point

Description

UO #1

4-20mA, 0-10Vdc

Spare

UO #2

Heating Source Control Signal

UO #3

0-10 Vdc

Economizer Valve (WiSE)/Damper Control Signal (AiSE)

UO #4

WiSE Bypass Valve Signal

UO #5

Spare

UO#6

Supply Fan VFD Control Signal

DO #1

120 VAC

Start Supply Fan

DO #2

FORM C

Start Condenser Pump or Switch Reversing Valve

DO #3

  

Field-Lin (MWU or Open Min OA)

DO #4

  

Common Alarm

DO #5

  

Compressor Call #2

DO #6

  

Compressor Call #1

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