Slant_fin S-150 User Manual

CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGEDimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10SentryFigure 9. Single zone with indirect water heater (DHW Priority) using R882A/B relay.

11SentryNOTE: Settings can be checkedusing the TEST/SETTINGS Button.SETTING THE HIGH LIMITThe high limit is factory set at190°F. To adjust, turn the H

12SentryNOTE: The Program Mode – Pro – is accessed by turning theLO TEMP dial to a position just above OFF.THERMAL PRE-PURGEThermal Pre-Purge is desig

13SentryOPTIONAL FEATURES ContinuedCIRCULATOR ACTIVATION OPTIONSWhen in the default mode, the HydroStat activates the circulator (C1/C2 contacts) on c

14SentryOPTIONAL FEATURES ContinuedRESTORE FACTORY DEFAULT SETTINGSTo restore all features to the factory default settings (see following chart for de

15Sentryu TEMP ACTIVE Indicates that theFuel Smart HydroStat control is pow-ered and that the temperature functionis active.v TEMP HIGH TEMP Illumina

16SentrySEQUENCE OF OPERATION FOR SENTRY BOILERSTHERMOSTAT CALLS FOR HEATHIGH LIMIT CONTACTS CLOSED?LOW WATER CUT-OFFCONTACTS CLOSED?VENT DAMPER RELAY

17SentryBOILER ROOM AIR SUPPLY AND VENTILATIONAn ample supply of air is required to obtain combustion andventilation. ALL AIR COMES FROM OUTSIDE, dire

18SentryFigure 11. Zoning with circulators, optional indirect DHW tank

19SentryFigure 12. Zoning with zone valves, optional indirect DHW tank

2SentryNote: Height dimension increases by 1-3/4" when comustible floor kit is used.* Vent damper may be installed horizontally on all models wit

20SentrySAFETY INFORMATIONFOR YOUR SAFETY READ BEFORE OPERATINGWARNING: If you do not follow these instructions exactly,a fire or explosion may result

21Sentrya. Boiler (burner) is overfiring. CAUTION! National FuelGas Code ANSI Z223.1-latest edition, does NOT per-mit firing at a higher input rate th

22Sentry3. Water lines: slightest leaks should be corrected.4. Low water cutoff, for operation (see instructions fur-nished with unit).2. WATER LEVE

23SentryGENERAL TROUBLESHOOTING GUIDE FOR SERVICEPEOPLEBURNERS FAIL TO OPERATECAUSE1. Safety pilot out, or flame too low.2. Gas supply valve shut off.

24SentryPIPING A HEATING - COOLING SYSTEM TO A WATERBOILER AND CHILLERThe chiller must be piped in parallel with the boiler. Figure belowillustrates a

25Sentry(a) Seal any unused openings in the common venting system.(b) Visually inspect the venting system for proper size and hor-izontal pitch and de

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SLANT/FIN CORPORATION, Greenvale, N.Y. 11548 • Phone: (516) 484-2600FAX: (516) 484-5921 • Canada: Slant/Fin LTD/LTE E, Mississauga, Ontariowww.slantfi

3SentryThe installation must conform to the requirements of the authorityhaving jurisdiction or, in the absence of such requirements, to theNational F

B. Provide accessibility clearance of 24” on sides requiring servicing and 18” on sides used for passage.C. All minimum clearances shown above must be

5SentryD. Vent or breeching into chimney should not be inserted pastthe inside wall of the chimney liner.E. All venting means should be inspected freq

6SentryGAS PIPING—A. Local installation codes apply. The pipe joint compound usedon threads must be resistant to the action of liquefied petro-leum ga

7SentryFigure 4.CAUTION: LABEL ALL WIRE PRIOR TO DISCONNCTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPR

8SentryFigure 5. Multizoning of Sentry boilers pump zoning system using R845A relay.Figure 6. Multizoning of Sentry boiler-2 zone system pump zoning s

9SentryFigure 7. Multizoning of Sentry boilers zone valve system using V8043E/F zone valves.Figure 8. Multizoning, zone valve system with indirect wat