INSTALLATION MANUAL AND OPERATING INSTRUCTIONS argo DPM-2 Outdoor temperature Setback CONTROL DPM-2 ARGO (Technical Support) 2201 Dwyer Avenue Utica, NY 13501 (Corporate Sales) 85 Middle Road Dunkirk, NY 14048 www.argocontrols.com An ISO 9001-2000 Certified Company P/N 240005132, Rev.
installation manual and operating instructions TABLE OF CONTENTS I II III IV V VI VII VIII IX X XI XII Safety Symbols and Warnings.................. Introduction................................................ Product Description and Specifications.... DPM-2 Control Board Diagram................. DPM-2 Control Mounting Instructions....... Electrical Specifications & wiring.............. DPM-2 Setup............................................. Wiring Applications....................................
I - 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.
Ii - introduction This manual is intended to familiarize the installer and user of the Argo DPM-2 Outdoor Temperature Setback Control with its installation and operation to assure normal trouble-free operation. Argo controls are designed and manufactured with quality components for maximum life and durability and require minimal service. To ensure a satisfactory installation, it is imperative that the instructions be followed carefully before operating the control.
IV - DPM-2 control BOARD Diagram 1 2 3 4 5 6 13 7 12 8 11 10 9 DIAGRAM KEY 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Water Sensor Terminal Block Outdoor Sensor Terminal Block Priority Input Terminal Block Priority LED Max. Temp.
v - dpm-2 control mounting instructions Mount the Argo DPM-2 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 being controlled, however it should never be mounted more then 75 feet away. Select a location that is easily accessible for installation and service.
Water Supply Sensor Installation Figure #2 Install the supply water sensor on the common header within 5 feet of the supply water tapping in the boiler. (Figure #2) VI - Electrical speci- fications & Wiring ! WARNING ! Electrical shock hazard! Disconnect power before installing or servicing. Can cause severe personal injury, death, or substantial property damage if ignored. General Wiring Notice All primary wiring must be 14 AWG minimum. Torque terminal screws 6 to 7 inch pounds. U.S.A.
VII - DPM-2 SETUP COMMON TERMINOLOGY RESET RATIO: The ratio between supply water temperature and outdoor temperature. For example, a ratio of 1.0 or 1:1 means that, for every one degree that the outdoor temperature decreases, there will be a one degree increase in supply water temperature. MAX. TEMP: The maximum supply water temperature when the outdoor temperature is 0°F. DIFFERENTIAL: A measurement used to determine when the boiler will turn on and off.
VIII - wiring applications DPM-2 outdoor temperature setback control with argo az-3 zone valve control TYPICAL WIRING APPLICATION USING DPM-2 Typical Wiring Application using DPM-2 OUTDOOR RESET WITH ARGO AZ-3 ZONE VALVE CONTROL Outdoor reset with Argo AZ-3 Zone valve Control WATER SENSOR OUTDOOR SENSOR INPUT SENSOR PRIORITY WATER SENSOR DPM-2 OUTDOOR RESET CONTROL OUTDOOR DPM-2 TRIMPOTS FOR FACTORY CALIBRATION DO NOT USE PRIORITY ON 0.7 180 0.8 0.6 0.5 1.
VIII - wiring applications DPM-2 outdoor temperature setback control with argo aZ-4Cp control WATER SENSOR OUTDOOR SENSOR DPM-2 INPUT SENSOR OUTDOOR PRIORITY WATER DPM-2 OUTDOOR RESET CONTROL TRIMPOTS FOR FACTORY CALIBRATION (DO NOT USE) SENSOR } DO NOT USE PRIORITY ON 0.7 180 0.8 0.6 10 1.0 0.5 1.
VIII - wiring applications DPM-2 outdoor temperature setback control with argo arm-4p control 12
ix - sequence of operation NOTE: The DPM-2 is designed to operate in conjunction with several Argo controls via a ribbon cable but may also be used with other manufacturers’ controls. The following assumes that the application is a ribbon cable to a standard zone control. 1. The zone control and the associated boiler should be functioning properly in all respects prior to evaluating the DPM-2. Remove the ribbon cable and verify proper system operation before continuing. 2.
x - TROUBLESHOOTING rtd sensor troubleshooting To confirm that the RTD Sensor is functioning properly: 1. Remove both RTD leads from the terminal block on the control board. 2. Use a multimeter to take an ohm reading across the RTD leads. A properly functioning RTD Sensor will produce a reading of approximately 1005 ohms at 70°F while a faulty RTD will read either “0” or “1.” 3. Replace RTD if necessary. troubleshooting tips 1.
x - TROUBLESHOOTING EXAMPLE: If the water sensor reads 1500 ohms and you estimate that the water is about 175°F, the water sensor is okay. If the meter reads 1400 ohms or 155°F, you might suspect the thermal connection between sensor and the pipe.
xI - replacement parts DESCRIPTION PART NUMBER Temperature Sensor Z63 Outdoor Sensor Shield S60 xiI - Technical support For technical support on this and all Argo products, please contact ECR International Technical Service at 1-800-325-5479. Please have the following information available when calling: model number: Installation Date: Installer: www.argocontrols.
