Install Instructions

7
AZ-4CP CONTROL BOARD
1. Transformer Spade Terminals (120 Vac) (Primary)
2. Transformer Spade Terminals (24 Vac) (Class 2)
3. Isolated End Switch X-X
4. Data Port Terminal - used for communication with the Argo
DPM-2 Outdoor Temperature Setback Control
5. LED Array
Status LED -
• ashes during normal operation
Priority On - indicates priority mode is selected
•
Primary Pump - indicates primary pump is energized•
Priority Pump - indicates the priority zone pump is energized•
X-X Contact - indicates X-X contact is closed and calling •
for heat from the boiler
ZR On - indicates ZR-ZC dip switch is in the ON posi-
•
tion, priority zone is calling, and ZR-ZC terminals are
energized.
6. Thermostat Terminals (Class 2)
7. Green Indicator LED - indicates zone is calling for heat
8. Field Selectable Option Dip Switches (see “Field Selectable Option
Switches” in this manual for explanation)
9. Red Indicator LED - indicates zone valve is fully open
10. Zone Valve Terminals (Class 2)
11. ZC on Green Indicator LED
12. ZR-ZC Terminals (used for tankless coil applications) (Primary)
13. Priority Pump Terminals (Primary)
14. Primary Pump Terminals (Primary)
15. Source Power Terminals (Primary)