Arzel Heat PumPro - Board Layout

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Board Layout
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Item # Description Function
1 HVAC Outputs Dry Contacts to control HVAC equipment
2 Lighted LCD Display Provides all system information at a glance & simplies 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 ve 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
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