Argo AT0824 Specifiche

INSTALLATION, OPER ATION & MAINTENANCE MANUALAn ISO 9001-2008 Certied CompanyInformation and specications outlined in this manual in effect at t

10ELECTRICAL CONNECTIONSBoiler Wiring NOTICEBoiler is not designed for use of aluminum wiring. Boiler failure can occur if aluminum wiring is used.1.

11Field Wiring - ContinuedLimit Control Operation1. MAIN POWER SUPPLY: Depending on model designation, the electric Hydronic Block may be energized by

12ELECTRICAL CONNECTIONSFigure 7 - Wiring on Control Board Figure 8 - Low Voltage Wiring on Control BoardControl Inputs (NEC Class-2 Low Voltage)R (T)

13SEQUENCE OF OPERATION1 Mode and Power Selection Button - Turns the boiler on and off, selects mode and conguration settings2 Heating Demand LED In

14SEQUENCE OF OPERATIONUser Settings Display Possible ValueFactory SettingOverviewOn/Off Mode ON ONOFFPress and hold the MODE/PWR button for 2 seconds

15SEQUENCE OF OPERATIONBoiler Display CodesDisplay Description Range NoteOn Boiler in On modeOff Boiler in Off modeCHSComfort Heating Setting 90-180°F

16CONTROL OPERATIONInitial Start UpWhen electrical power is applied to AT boiler the control displays rmware revision code. It will then revert to mo

17Once initiated, Dry Fire Test can be canceled by pressing ▲up and ▼down arrow buttons simultaneously for 2 seconds. This by-pass feature is intended

18CONTROL OPERATIONBoiler Fault Codes• Freeze ProtectionIf the water temperature falls below 45°F (7°C) the control will automatically initiate a heat

19R (T)W (T)CDHWODTODTLMCDHWDEMAND PUMPPOMPELMCT AuxT AuxHLHLFLOLWCLWCWTFLOWTREDREDREDNEUTRAL BLOCKNMISE À LA TERRE DE L'APPAREILFIELD SUPPLIED P

2TABLE OF CONTENTS"AT" Series Boiler Dimensions ...3Important Safe

20R (T)W (T)CDHWODTODTLMCDHWDEMAND PUMPPOMPELMCT AuxT AuxHLHLFLOLWCLWCWTFLOWTREDREDREDNEUTRAL BLOCKNMISE À LA TERRE DE L'APPAREILFIELD SUPPLIED P

21STARTUP AND SEASONAL MAINTENANCEUse qualied service agency for annual inspection of boiler and heating system.Placing Hydronic block into service.1

22Hydronic block requires minimum periodic maintenance. Annual maintenance allow for trouble free operation.1. Boiler is designed to provide years of

23ADDITIONAL WIRING DIAGRAMSFigure 11 - Single Zone with Circulator - 2 Boilers(1/16 Hsp. Max.) (1/16 Hsp. Max.)1/16 HSP MAX1/6 hp MAX1/6 hp MAX.R(T)

24ADDITIONAL WIRING DIAGRAMSFigure 12 - Two Zones with Circulator - 2 Boilers"AT" BOILER CIR. CIRCULATOR PUMP 120 VAC PRIMARY TT TT C1 C2

25"AT" BOILER C1 C2 CIR. CIRCULATOR PUMP 120 VAC TT TT PRIMARY X X ZONE 1 ZONE 2 T T SWITCH END ZONE 1 THERMOSTAT SPST (2 WIRE) ARGO AZ-3

26ARGOELECTRICBOILERDRAINVALVEPRESSURE/TEMPERATUREGAUGEPRESSURERELIEF VALVEPIPE TO WITHIN 6" OF FLOORBOILER PUMPVALVEFLOWFLOW12"MAXFLOORARGO

27TROUBLESHOOTINGHeating Element ChangeHeating element change, use following procedure:Noisy Boiler• Check water pressure of boiler. Should be 15-25 P

28TROUBLESHOOTING WARNINGElectrical shock hazard. Turn OFF electrical power supply at main power switch before servicing unit. Service shall be prefo

29TROUBLESHOOTINGFLO Flow Switch AlarmIs ow switch installed?N - Check control board jumper is in place and secure. Tighten FLO screws if needed.Y -

3ABCDDimensions Inlet & Outlet Pipe Size Approximate Shipping Wt.A B C D E14⅝” 18⅝ “ 9¹/₃₂” 14⅜” 16¹⁵/₃₂” 1¼ NPT 70 lbs."AT" SERIES BOIL

30RESISTANCE VS. TEMPERATURE TABLEResistance Vs. Temperature TableTemp TempOhms (Ω)(°C) (°F)0 32.0 32,6505 41.0 25,39210 50.0 19,90115 59.0 15,71220 6

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32PARTS LIST - 2 & 4 ELEMENT BOILER2163681491112145151013181713a13B7

33 2 & 4 Element Electric Boiler Item Part Number Description1 V1 Relief Valve - 30 PSI2 E1 Elbow 3/4" x 90°3 N1 Nipple 3/4" x 2"4

34NOTES

35Company Address & Phone #Company Name & Tech InitialsService PerformedDate

Model Number: _____________________________________________Serial Number: ______________________________________________Date Installed: ______________

4IMPORTANT SAFETY INFORMATIONNOTICEUsed to address practices not related to personal injury.CAUTIONIndicates a hazardous situation which, if not avoid

5Product DescriptionElectric Hydronic Block is heating device converts electrical energy to heat energy through medium of water. Simplied theory of t

6INSTALLATION MANUAL AND OPERATING INSTRUCTIONSTable 1 -AT Boiler Electrical Specications Operating at 240 Vac“AT” Series - 2 Element Boiler *Recomme

7LOCATING THE BOILER1. Boiler is intended for indoor installation only and not subject to water spray or leakage.2. Electric Hydronic Block units are

8Circulating System• Design system as primary/secondary piping. Operate system with maximum output temperature of 180ºF (82°C) or lower and temperatur

9HYDRONIC PIPINGFigure 2 - Primary/Secondary Piping for Multiple Zoning with CirculatorsFigure 3 - Primary/Secondary Piping For Multiple Zoning With Z