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Table of Contents
Summary of Contents for ECR International ARGO AR Series
- Page 1 ARGO AR SERIES CONTROLS AR822-II, AR861-2II, AR861-3II INSTALLATION, OPERATION & MAINTENANCE MANUAL AR861-2II AR861-3II AR822-II Manufactured by: ECR International Inc. 2201 Dwyer Avenue, Utica, NY 13501 Tel. 800 325 5479 www.ecrinternational.com PN 24005122 REV. D [11/15/2021]...
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Page 2: Table Of Contents
Retain for future reference Information and specifications outlined in this manual in effect at the time of printing of this manual. ECR International, Inc. reserves the right to discontinue, change specifications or system design at any time without notice and without incurring any obligation, whatsoever. -
Page 3: Safety Symbols
Become familiar with symbols identifying potential hazards� This manual is intended to familiarize the installer and user of the Argo AR Series of controls with their installation and operation to assure normal trouble-free operation� This is the safety alert symbol� Symbol alerts you to potential personal injury hazards�... -
Page 4: Electrical Specifications & Wiring
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS Electrical Specifications & Wiring AR822-II Control Features WARNING • Auto-Reset Electronic Fuse Protection – Eliminates Nuisance Service Calls Electrical shock hazard. Disconnect power before installing or servicing� Failure to follow these • 15VA Transformer – Robust Components Provide Years of Trouble -Free Service instructions could result in death or serious injury�... -
Page 5: Ar822-Ii Control Board
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR822-II CONTROL BOARD ARGO TORQUE TERMINAL SCREWS AR822-TT 6 TO 7 INCH LBS Class 2 Terminals Primary Terminals Factory Installed Jumper Between L1 & 3 AR822-II WIRING SCHEMATICS PN 240005122 Rev. D [11/15/2021]... -
Page 6: Ar822-Ii Applications
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR822-II APPLICATIONS AR822-II Single Zone Application with Tankless Coil Boiler AR822-II Dual Zone Application without Tankless Coiler Boiler TO BURNER OR BURNER CONTROL DO NOT USE PN 240005122 Rev. D [11/15/2021]... -
Page 7: Ar822-Ii With Zone Valve Priority
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR822-II APPLICATIONS AR822-II Indirect Tank Priority with Zone Valve Control DOMESTIC WATER AR822 ARGO JUMPER PRIORITY CIRC. STAT STAT STAT STAT STAT SUPPLIED AZ-5 WITH RELAY 24 VAC END SW 1 END SW 2 ZONE 1 ZONE 2 ZONE 3 ZONE 4... -
Page 8: Ar861-2Ii & Ar861-3Ii Control Features
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-2II & AR861-3II Sequence of Operation AR861-2II & AR861-3II Control Features If the Priority Switch is in the “OFF” Position • 2-Zone AR861-2II or 3-Zone AR861-3II 1. When a zone calls for heat the corresponding •... -
Page 9: Ar861-2Ii Control Board & Wiring Schematic
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-2II CONTROL BOARD & WIRING SCHEMATIC Class 2 Terminals Primary Terminals PN 240005122 Rev. D [11/15/2021]... -
Page 10: Ar861-3Ii Control Board & Wiring Schematic
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-3II CONTROL BOARD & WIRING SCHEMATIC Class 2 Terminals Primary Terminals PN 240005122 Rev. D [11/15/2021]... -
Page 11: Ar861-2Ii & Ar861-3Ii Applications
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-2II & AR861-3II APPLICATIONS The diagrams on the following pages represent the AR861-3II. The AR861- 2II is wired in a similar fashion. Terminals Isolated End Switch Each of the low voltage controllers (SPST Thermostats) will actuate a circulator and start the burner when used in conjunction with an isolated switch aquastat. - Page 12 INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-2II & AR861-3II APPLICATIONS T-Stat Priority T-Stat T-Stat AR861-3II Class 2 Wiring Primary Wiring Primary Wiring Jumper HZ1 GZ2 HZ2 GZ3 HZ3 Circ Circ Priority Circ 120 VAC To Burner or Burner Control L8148 Priority T-Stat T-Stat T-Stat...
- Page 13 INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-2II & AR861-3II APPLICATIONS WARNING AR relays will not work properly if 120 VAC polarity is not the same at 120 VAC L and N terminals on both AR control and boiler aquastat� The neutral and hot wires must not be reversed�...
- Page 14 INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-2II & AR861-3II APPLICATIONS L8124 A or C Priority T-Stat T-Stat T-Stat Burner AR861-3II Class 2 Wiring Primary Wiring Primary Wiring Jumper HZ1 GZ2 HZ2 GZ3 HZ3 Circ Circ Priority Circ 120 VAC L8124 A or C Priority T-Stat T-Stat...
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Page 15: Ar861-2Ii & Ar 861-3Ii Expansion Control
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS AR861-2II & AR861-3II EXPANSION TECHNIQUE The two controls on this page are capable of running six zones. When they are installed as shown below, only one priority and four standard zones (for a total of five zones) are available. STAT STAT DOMESTIC... -
Page 16: Ar Series With Dpm-2 Outdoor Reset Control
Argo Part Number Replacement Control Relay R35C Technical Support For technical support on this and all Argo products, please contact ECR International Technical Service at 1-800-325-5479. Please have your model number available when calling. Information Needed When Calling Model Number...
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