6
Board Layout
2
3
4
5
6
7
8
10
11
9
Item #
Description
Function
1
HVAC Outputs
Dry Contacts to control HVAC equipment
2
Lighted LCD Display
Provides all system information at a glance & simplifies system setup
using a guided Set-Up Wizard
3
USB Port
Software revision input and data download to laptop
4
Zone 2 through Zone 4 Inputs Four or five wire thermostat inputs (Heat/Cool Thermostats Only)
5
Navigation Buttons
Provides programming interface for Set-Up Wizard
6
Sensor Inputs
Connections for Leaving Air Temperature (LAT) and Outdoor Air Tempera-
ture (OAT) sensors. Both sensors MUST be installed for proper opera-
tions.
7
MPS Switch
Auto/Manual switch for the Mini Pump
8
Zone 1 Input Terminal
Inputs for any 24 VAC thermostat, heat pump or heat/cool
9
24VAC Power Input
Arzel transformer connections “R” & “C” (40VA)
10
2-Amp Fuse
Protects the board against thermostat wiring shorts
11
Power Switch
Controls 24VAC power source to zone control panel
1
