INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AZ-4CP / AZ-6CP ZONE VALVE CONTROLS ARGO (Technical Support) 2201 Dwyer Avenue Utica, NY 13501 (Corporate Sales) 85 Middle Road Dunkirk, NY 14048 www.argoindustries.com An ISO 9001-2000 Certified Company P/N 240005386, Rev. 1.
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS P/N 240005386, Rev. 1.3 [10/06] TABLE OF CONTENTS Safety Symbols and Warnings .......................................................4 Introduction .....................................................................................5 Product Description ........................................................................5 AZ-4CP Control Board....................................................................6 AZ-6CP Control Board..........................
SAFETY SYMBOLS AND WARNINGS The following defined symbols are used throughout this manual to notify the reader of potential hazards of varying risk levels. ! DANGER ! Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury. ! WARNING ! Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
INTRODUCTION This manual is intended to familiarize the installer and user of the Argo AZ-CP Zone Valve Controls with their installation and operation so as to assure normal trouble-free operation. Argo controls are designed and manufactured with quality components for maximum life and durability and require minimum service. To insure a satisfactory installation, it is imperative that the instructions be followed carefully before operating the control. Failure to do so may result in breach of warranty.
AZ-4CP CONTROL BOARD 1 2 15 14 3 13 4 12 5 11 6 7 10 9 8 6
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.
AZ-6CP CONTROL BOARD NOTE: The transformer found in the AZ6CP control contains a manual reset circuit breaker. Should the control not power up, check to see if the circuit breaker has tripped (a white indicator will be visible on the side of the breaker). The circuit breaker can be reset by pressing the black button found on top of the transformer.
AZ-6CP CONTROL BOARD 1. Transformer - 75VA, 120V/24V 50 HZ 2. Circuit Breaker Reset Switch 3. Transformer Spade Terminals (120 Vac) (Primary) 4. Transformer Spade Terminals (24 Vac) (Class 2) 5. Isolated End Switch X-X 6. Data Port Terminal - used for communication with the Argo DPM-2 Outdoor Temperature Setback Control 7. LED Array (see “AZ-4CP Control Board” in this manual for specifications) 8. Thermostat Terminals (Class 2) 9. Green Indicator LED - indicates zone is calling for heat 10.
MOUNTING INSTRUCTIONS Mount the AZ-CP Zone Valve Control vertically on a solid wall or partition. For your convenience it is recommended that the control be mounted as close as possible to the device to be controlled. The switching relay should never be mounted more then 75 feet away. Select a location that is easily accessible for installation and service.
ELECTRICAL SPECIFICATIONS AND WIRING – ELECTRICAL SPECIFICATIONS – Model Number Zones Transformer Voltage Relay Switching Action Total Amp Draw (120VAC) AZ-4CP 4 120V/60Hz/40Va SPST 7.2A AZ-6CP 6 120V/60Hz/75Va SPST 7.
AZ-CP WIRING SCHEMATICS – AZ-6CP – 12
AZ-CP WIRING SCHEMATICS The diagrams in this manual represent the Argo AZ-4CP Zone Valve Control. The AZ-6CP has similar electrical connections. Differences in operating features are noted in this manual.
ZR-ZC WIRING ! WARNING ! When using ZC-ZR careful attention must be paid to keeping the polarity of the wiring consistent between the Argo control and the boiler aquastat. Failure to do so could result in a secondary source of power activating the boiler under certain circumstances which could result in serious injury or death. Always disconnect power to both the Argo control and the boiler when installing or servicing this product.
ZR-ZC WIRING – TANKLESS COIL BOILER WITH MH L8124 A OR C TO AZ-CP CONTROL – (PRIORITY PUMP, PRIORITY, AND ZR-ZC OPTIONS SELECTED) PRIORITY PUMP ZONE VALVE / PUMP PRIORITY ZR-ZC DPM-2 PRIMARY PUMP OPTION SWITCHES 24 VAC 120 VAC TO XFRM 120VAC STATUS PRIORITY ON PRIMARY PUMP PRIORITY PUMP X-X CONTACT ZR ON FROM BOILER ZONE VALVE / PUMP PRIORITY ZR-ZC DPM-2 OPTION SWITCHES 15
INDIRECT WATER TANK WIRING (INDIRECT WIRING WITH PUMP AND PRIORITY OPTIONS SELECTED) – INDIRECT WATER TANK TO AZ-CP CONTROL – PRIORITY PUMP ZONE VALVE / PUMP PRIORITY ZR-ZC DPM-2 PRIMARY PUMP OPTION SWITCHES 24 VAC 120 VAC TO XFRM 120VAC STATUS PRIORITY ON PRIMARY PUMP PRIORITY PUMP X-X CONTACT ZR ON FROM BOILER ZONE VALVE / PUMP PRIORITY ZR-ZC DPM-2 OPTION SWITCHES 16
FIELD SELECTABLE OPTION SWITCHES NOTE: Priority selection switches may be covered with protective film. Remove before using selection switches. – ZONE VALVE/PUMP SELECTION SWITCH – Control must be in priority mode (priority switch ON) to access this feature. With the zone valve/pump switch in the OFF position, only the priority ZONE VALVE terminals are energized when Zone 1 calls for heat.
FIELD SELECTABLE OPTION SWITCHES – DPM-2 SELECTION SWITCH – The DPM-2 Outdoor Reset Control is designed to raise or lower the temperature of the boiler supply water based upon a proportionate drop or rise in temperature at the outside sensor. The DPM-2 plugs into a data port on the AZ-CP control with a ribbon cable. If the DPM-2 selection switch is in the ON position, the AZ-CP will be able to communicate with the DPM-2. (See the separate DPM-2 Installation Manual for more information.
SEQUENCE OF OPERATION – NORMAL OPERATION– (ALL DIP SWITCHES IN THE OFF POSITION) • The control will scan all TT terminals looking for a call for heat from any thermostat. • When a call for heat is detected the green TT LED for that zone will illuminate. • The corresponding zone terminals 1 & 2 will be energized with 24 volts. • The control will then wait for the zone valve end switch to close, a red LED will illuminate, indicating an open valve.
SEQUENCE OF OPERATION – PRIORITY PUMP CHOSEN – In order to use the priority pump feature both the zone valve/pump and priority dip switch must be in the on position. • The control will scan all TT terminals looking for a call for heat from any thermostat. • When a call for heat is detected on the priority zone the green TT LED for the priority zone will illuminate. • The jumper on terminals 3 & 4 of the priority zone will result in the end switch being automatically closed.
SEQUENCE OF OPERATION • The primary pump will be energized with 120 volts. – DPM-2 CHOSEN – • The control will scan all TT terminals looking for a call for heat from any thermostat. • When a call for heat is detected the green TT LED for that zone will illuminate. • The corresponding zone terminals 1 & 2 will be energized with 24 volts. • The control will then wait for the zone valve end switch to close; a red LED will illuminate indicating an open valve.
ZONE STAGING Zone Staging is a feature that is unique to the AZ-6CP control. When the AZ-6CP senses a power demand that exceeds the capabilities of the 75VA transformers, the control will energize one zone at a time until all calling zone valves are opened. Please note that Priority/Zone 1 is not affected by Zone Staging and is permitted to open at any time. AZ-CP CONTROL EXPANSION Following the instructions below, up to two (2) AZ-CP controls can be wired together.
AZ-CP CONTROL EXPANSION 24 VAC STATUS PRIORITY ON PRIMARY PUMP PRIORITY PUMP X-X CONTACT ZR ON ZONE VALVE / PUMP PRIORITY ZR-ZC DPM-2 OPTION SWITCHES 120 VAC TO XFRM 120VAC PRIMARY PUMP PRIORITY PUMP FROM BOILER When using the priority pump feature, a jumper (not supplied) will be required across terminals 3 and 4 of the priority zone terminal block.
REPLACEMENT PARTS AND CONTROLS – REPLACEMENT CONTROLS – Part Description Part Number AZ-4CP Control with Priority Z297 AZ-6CP Control with Priority Z298 DPM-2 Outdoor Reset Control Z172 – REPLACEMENT PARTS – Part Description Part Number Circuit Board AZ-4CP B215 Circuit Board AZ-6CP B216 Transformer - 40VA, 120V/24V 50 HZ (AZ-4CP) T79 Transformer - 75VA, 120V/24V 50 HZ (AZ-6CP) 240005137 TECHNICAL SUPPORT For technical support on this and all Argo products, please contact ECR International
