Daikin McQuay AGZ-D - MicroTech III Controller Overview; Controller Overview; Controller Inputs and Outputs

OMM 1087 AGZ 025D through 190D 13
MicroTech III Controller
Controller Section Table of Contents
Overview........................................................................................................................14
Controller Inputs and Outputs........................................................................................14
Setpoints
........................................................................................................................16
Security
..........................................................................................................................20
Unit Control Functions
..................................................................................................20
Unit Enable
....................................................................................................................21
Unit Mode Selection
......................................................................................................22
Unit S
tates......................................................................................................................22
S
tart Delays....................................................................................................................23
Evaporator Pum
p Control ..............................................................................................24
Leaving W
ater Temperature (LWT) Reset/Target ..........................................................25
Unit Capacity
Control....................................................................................................26
Unit Capacity
Overrides……………………………………………………………….27
Circuit Control Functions
..............................................................................................29
Circuit Control Logic
.....................................................................................................29
Pum
pdown Procedure ....................................................................................................31
Com
pressor Control.......................................................................................................31
Condenser Fan Control
..................................................................................................32
EXV
Control ..................................................................................................................34
Liquid Line Solenoid
.....................................................................................................35
Hot Gas By
pass Solenoid ..............................................................................................35
Alarm
s............................................................................................................................35
Events…………………………………………………………………………....…….41
Clearing Alarm
s .............................................................................................................43
Using the Controller…………………………………………………………………...44