Sentry S-120-EDP Installation Guide
Contents
1. Slant Fin x CERTIFIED GAS FIRED CAST IRON BOILERS FOR eee AND L P PROPANE GASES HOT WATER MODELS S 34 THROUGH S 150 INSTALLATION AND OPERATING INSTRUCTIONS CONTENTS r PAGE IMPORTANT Dimensions EET TTE 2 3 READ ALL OF THE FOLLOWING WARNINGS Installation Requirements AND STATEMENTS BEFORE READING THE Boiler 3 INSTALLATION INSTRUCTIONS Boiler Foundation e Rp e 3 Chimney Requirements 4 WARNING Minimum 4 SEE WARNING ON PAGE 4 FOR LIQUEFIED Vent PIPING Si ie rp REED e eres 4 PETROLEUM L P PROPANE GAS FIRED BOILERS Vent Damper Installation 5 Gas 6 The installation must conform to the requirements of the Electrical Controls and Wiring 6 10 authority having jurisdiction or in the absence of such Boiler Water Temperature Control 10 15 requirements to the National Fuel Gas Code ANSI Z223 1 Sequence of Operation 16 latest edition The installation must also conform to the Boiler Room Air Supply and Ventilation 17 additional requirements in this Slant Fin Instruction Book Water Piping at 17 Operating Instructions In addition where required by the authority having jurisdic Filling and Ven2. 5 60 thru S 150 propane 57 58 59 59 60 60 61 62 63 63 Orifice indicated for sea level above are factory installed in boiler unless otherwise specified by the local authority See page 20 for burner input adjustment Base Assembly INSTALLATION REQUIREMENTS Sentry Boiler The installation must conform to the requirements of the authority having jurisdiction or in the absence of such requirements to the National Fuel Gas Code ANSI Z223 1 latest edition This installation must also conform to the additional requirements in this Slant Fin Instruction Book NATURAL GAS FIRED BOILER LOCATION Provide a level solid foundation for the boiler Location should be as near as possible to chimney or outside wall so that the flue pipe from boiler is short and direct The location should also be such that the gas ignition system com ponents are protected from water dripping spraying rain etc during appliance operation and service circulator replacement condensate trap control replacement etc BOILER FOUNDATION A Provide a solid level foundation capable of supporting the weight of the boiler filled with water and extending at least 2 past the jacket on all sides See dimensions of boiler page 2 Gas Valve B For installation on non combustible floors only The Combustible Floor Kit part number printed on the boiler rating plate is the only one to be used when installing on combustible floors The
3. NOTE Observe operation of the pilot burner with appli ance doors in the final operating position Use of a mir ror may be helpful CARE AND MAINTENANCE WARNING THE FLOW OF COMBUSTION AND VENTILAT ING AIR TO THE BOILER SHOULD NOT BE OBSTRUCTED This section must be brought to the attention of the owner by the installer so that the owner can make the necessary arrangements with a qualified service agency for the periodic care and maintenance of this boiler The installer must inform the owner that the gas supplier can recommend a number of qualified service agencies The installer must also inform the owner that the lack of proper care and maintenance of this boil er and any fuel burning equipment may result in a hazardous condition 1 GENERAL MAINTENANCE Information Manual These operations are recommended to be performed at reg ular intervals A BOILER HEATING SURFACES clean off all coatings found B BOILER CONTROLS check contacts settings correct functioning C PIPING check piping and accessories for leaks D CHIMNEY VENTING SYSTEM check for obstructions and leaks E BOILER ROOM AIR SUPPLY check air vents for contin ued POSITIVE supply of air as required Air needs are greatest in cold weather Air vents must be open and free of obstruction F WATER SYSTEM CHECK 1 System to be full of water and pressure to remain sta ble at correct setting on gauge 2 Air control system noise and air binding in ra
4. O 120 24 120V 60HZ RANSFORMER HYDROLEVEL HYOROSTAT CONTROL MODEL 3200 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED L1 L2 2 B1 B2 I1 12 Figure 6 Multizoning of Sentry boiler 2 zone system pump zoning system using R882A B relays Sentry V8043E F END SWITCH ZONE 1 THERMOSTAT DISCONNECT SWITCH V8043E F END TH TR MOTOR SWITCH TH TR V8043E F END MOTOR SWITCH TH TR MOTOR 120 24 TRANSFORMER OO O HYDROLEVEL HYDROSTAT CONTROL MODEL 3200 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED BOILER CIRCULATOR Figure 7 Multizoning of Sentry boilers zone valve system using V8043E F zone valves MULTIZONING ZONE VALVE SYSTEM WITH INDIRECT WATER HEATER DHW PRIORITY USING R882A B RELAY ZONE 2 THERMOSTAT THERMOSTAT V8043E F V8043E F V8043E F END SWITCH OO END END TH TR MOTOR SWITCH TH TR MOTOR SWITCH TH TR MOTOR DHW TANK AQUASTAT DISCONNECT SWITCH sei L2 120V 24V TRANSFORMER HYDROLEVEL HYDROSTAT CONTROL MODEL 3200 DHW TANK L1L2C2CI 2 1112 CIRCULATOR HOT 120V 60Hz SPACE HEATING CIRCULATOR NEUTRAL N POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED JUNCTION BOX Figure 8 Multizoning zone val
5. Sentry GAS Was INLET ore GAS CONTROL KNOB SHOWN IN OFF POSITION B S8600 Ignitor Ignition Cable w Electric Ignition b Pilot in Boiler Side View Gas Valve Aluminum Pilot Gas Tube BURNER ADJUSTMENT A Adjust gas input rate 1 Consult gas supplier for higher heating value of gas Btu cu ft 2 Set thermostat high enough so that boiler will remain on while checking rate 3 Measure manifold pressure at 1 8 tapping Correct man ifold pressure for gas used is printed on boiler rating plate NOTE Gas pressure may be adjusted by turning pressure regulator screw on combination gas valve turn clockwise to increase pressure counterclockwise to decrease pressure a Input for PROPANE is approximately at rating shown on rating plate when manifold pressure is 9 1 2 water column b Input for NATURAL GAS is approximately at rating when manifold pressure is 3 1 2 water column but should be checked on the gas meter Btuh Input Btu cu ft x cu ft metered in 3 minutes x 20 Example 1 For 1000 Btu cu ft gas this becomes Btuh Input cu ft metered in 3 minutes x 1000 Btu cu ft x 20 Example 2 For 1050 Btu cu ft gas this becomes Btuh Input cu ft metered in 3 minutes x 1050 Btu cu ft x 20 4 The higher heating value of gas varies substantially for different localities Consult with Slant Fin s Technical Service Dept for re orificing procedures if any of the fol
6. UA Gas Vah ediment Trap 16 i S i required gas tapping 1 2 SOB c rV LOK I E c Left End View Front View Right End View Note Height dimension increases by 1 3 4 when comustible floor kit is used Vent damper may be installed horizontally on all models with use of a vent elbow For more information see figure 2 page 5 Sentry 3 Dimensions Approx CHIMNEY RECOMMENDATIONS inches Total Wt HEIGHT 15 ft minimum from draft Full of hood skirt to top of chimney Boiler Mo ori 2 B B E F G Water Ib INSIDE DIAMETER Same as dimen Model Sect max sion or larger NOTE Larger chimney may be S 34 2 8 14 4 33 190 required if two or more boilers a boil S 60 3 11 17 4 37 414 26 250 er and another appliance are vented to it ii yn yu a single chimney S 90 14 20 5 ud 5 25 6 PED Slant Fin supplies vent dampers by 8 120 5 17 23 6 37 TE 25 365 several manufacturers Some S 150 6 20 26 7 37 8 241 425 smaller than the indicated maxi Orifice Sizes for High Altitudes Orifice Includes 4 Reduction for Each 1000 Feet Size for Elevation Feet Boiler Gas Sea Model Type Level 2000 3000 4000 5000 6000 7000 8000 9000 10000 8 34 Natural 47 48 48 49 49 49 50 50 51 51 Propane 56 56 56 57 57 57 58 59 59 60 Natural 50 51 51 51 51 52 52 52 53 53
7. lowing apply Sentry a Boiler burner is overfiring CAUTION National Fuel Gas Code ANSI Z223 1 latest edition does NOT per mit firing at a higher input rate than the input rate indi cated on the boiler rating plate in order to avoid haz ardous conditions such as explosion or carbon monoxide poisoning b Poor higher heating value of gas is causing the actu al input to be substantially lower than the rating plate indication Higher heating value of gas is commonly known as a heating value GAS RATE TABLE The gas metered in 3 minutes to obtain rated input for each boiler model using 1000 Btu cu ft gas is tabulated in gas rate table Boiler rated input in ft hr of 1000 Btu cu ft 1000 Btu cu ft gas in 3 Natural Gas minutes at rated input T 1 70 60 3 00 B0 4 50 10 6 00 150 7 50 180 9 00 210 10 50 21 2 Safety Shutdown Checkout a For proper operation the pilot should engulf the thermo couple or flame sensor as shown below b To adjust pilot turn pilot flow adjustment screw on valve clockwise or counterclockwise to give a steady flame enveloping 3 8 to 1 2 inch of the tip of the thermocouple or flame sensor Note that turning the pilot adjust screw clockwise will decrease the pilot flame c Check safety shutdown of gas valve by following procedure outlined CARE and MAINTENANCE section Manifold Front back sliding primary air shutter locking
8. Arrangement mary secondary pumping with a boiler loop must be used to provide a minimum 130 F return water temperature to the boiler This will prevent condensation on the cast iron sections that can result in improper operation of the boiler OPERATING INSTRUCTIONS A Fill the system with water Vent or purge off air B Fire the boiler as soon as possible see following warning and instructions and bring water temperature to at least 180 degrees while circulating water in the system C Vent air and add water as needed to achieve operating pressure on boiler gauge Pressure must be between approximately 12 psi cold water and 25 psi at water tem perature setting of high limit control for boilers equipped with 30 psi relief valves Boilers rated for a higher pressure and equipped with a matching relief valve may operate at a higher pressure but no higher than 5 psi below the relief valve opening pressure D Check for and repair any leaks before placing system in service Before firing boiler make these checks 1 System is full of water Air is vented or purged 2 Relief valve is installed in accordance with the ASME Boiler Pressure Vessel Code Section IV Valve opening is not closed or reduced in size 3 Venting is installed according to instructions under VENT PIPING 4 All wiring is completed following applicable wiring dia grams 5 Using soap solution check for gas leaks in all gas piping from meter
9. E SERI B ee Economy Dial OFF or LO 1 2 3 4 5 Factory 1 Indicator Light announces heat call Spade Connectors for OS 100 Outdoor Sensor Kit Differentials are automatic and will vary based on control settings and boiler tem perature JA ex L2 C2 E gt B2 IMPORTANT NOTICE This boiler is equipped with a feature that saves energy by reducing the boiler water temperature as the heating load decreases This feature is equipped with an over ride which is provided primarily to permit the use of an external energy manage ment system that serves the same function THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE An external energy management system is installed that reduces the boiler water temperature as the heating load decreases This boiler is not used for any space heating This boiler has an input of 300 000 BTU hr or greater This boiler is part of a modular or multiple boiler system having a total input of 300 000 BTU hr or greater This boiler is equipped with a tankless coil SETTING OFF Disables economy function Will allow boiler to fire until hi limit temp is reached and re fire with a 10 subtractive differential Provides lowest level of fuel savings Use this setting only if the house does not stay warm at higher settings Recommended setting for single zone systems Recommended setting for Two zone systems Recommended setting
10. intermittent pilot system with main burners firing disconnect the ignition cable from the 58600 IGNITOR BOX The gas valve should shut off the main burners If the gas valve fails to shut down main burners when the test is performed replace the gas valve Check for gas leaks from valve and gas piping to burners and pilot If leaks are found repair or replace as required PROVIDING PROTECTION FROM FREEZING A Anti freeze is sometimes used in hydronic heating sys tems to protect against freeze up in the event of power failure or control shutdown when the building is unoccu pied It should be recognized that unless the building is kept above freezing temperature by some means the plumbing system is not protected PROPYLENE GLYCOL is used in the quick freeze food industry it is practically non toxic Its use may be permit ted when tankless heaters are used When anti freeze must be used inhibited propylene glycol is recommend ed Useful information on the characteristics mixing proportions etc of glycol in heating systems is given in Technical Topics No 2A available from the Hydronics Institute 34 Russo Place Berkeley Heights NJ 07922 Consult glycol manufacturers for sources of propylene glycol DO NOT use ethylene glycol because it is toxic Water Treatment A good water treatment program will not only extend the useful life of this boiler but it will also save much of the time and expense of repairs made necessary
11. to boiler pilot and manifold DO NOT use open flame 18 FROM THE REST OF SYSTEM all SPACE HEAT FH ZONE 2 j ISOLATION V SPACE FLOW CHECK VALVE Ll CIRCULATOR HEAT ZONE 1 ISOLATION VALVE PURGE DRAIN VALVE BOILER BOILER 2 RETURN 5 AIR VENT 72 AIR SEPARATOR a PRESSURE REDUCING VALVE ISOLATION VALVE EXPANSION TANK S DIAPHRAM TYPE FLOW CHECK VALVE f ARD i CIRCULATOR p RELIEF BOILER VALVE SUPPLY ISOLATION VALVE DOMESTIC HOT WATER TANK Figure 11 Zoning with circulators optional indirect DHW tank Sentry TO THE REST OF SYSTEM lt 3 ISOLATION vave A SHUTOFF VALVE MAKE UP WATER SUPPLY BACK FLOW PREVENTOR IF REQUIRED HOT WATER OUTLET SHUTOFF VALVE COLD INLET WATER HANC DRAIN VALVE Sentry FROM THE REST OF SYSTEM ISOLATION VALVE ISOLATION VALVE PURGE DRAIN VALVE BOILER RETURN SPACE HEAT 19 TO THE REST OF SYSTEM ZONE 2 SPACE HEAT ZONE 1 ISOLATION VALVE mi FLOW CHECK VALVE DHW CIRCULATOR RELIEF VALVE BOILER Figure 12 Zoning with zone valves optional indirect DHW tank ZONE VALVE FL
12. with indirect water heater see figure 11 and 12 AIR CONTROL SYSTEM A DIAPHRAGM TYPE COMPRESSION TANKS are used to control system pressure in an AIR ELIMINATING SYS TEM an automatic air vent is used to REMOVE air from the system water See figure 8 If system pressure needs further control add an additional tank or install a larger capacity tank Locate the tank near the boiler as illustrat ed An automatic air vent should be installed in the top of the boiler or air purger See figure 10 B PUMP LOCATION Locating low head pump s on return to boiler is acceptable for smaller boiler sizes in residences of one or two stories The alternate pump location shown in illustration is required in large multi story building installations especially when high head pumps are used The compression tank must be at the boiler or between boiler and supply main pump s IMPORTANT Hot water heating systems containing high water volume such as would occur with cast iron radia tion require special care with air elimination The circulator pump should be located on the boiler sup ply pipe and the expansion tank and air scoop should be located near the pump suction C Radiant floor and low water temperature systems A boiler by pass loop three way valve arrangement or pri 17 Flow Control Valve 3 4 Pressure Relief Valve Alternate Air Vent Alternate Circulator Expansion Tonk Circulator Figure 10 Piping
13. ARK GENERATOR MODULE POWERED S8600F OR 58600 IGNITION SPARK STARTS AND PILOT VALVE OPERATOR OPENS S8670E IGNITION SPARK AND PILOT VALVE OPERATOR DELAYED FOR 30 70 SECONDS NATURAL GAS S8600F IGNI L P PROPANE GAS 58600 THE PILOT FLAME ESTABLISHED gt TION SPARK CONTINUES S8670E IGNITION TRIAL CONTINUES PILOT VALVE REMAINS OPEN FOR 90 SECONDS AFTER TRIAL FOR YEs UNTIL SYSTEM IS RESET IGNITION SYSTEM SHUTS OFF AFTER 5 MINUTES MODULE RE INSTATES TRIAL FOR IGNITION IF PILOT FLAME NOT ESTABLISHED IGNITION TRIAL SYSTEM SHUT OFF AND 5 MINUTES WAIT SEQUENCE REPEATS CONTINUOUSLY SPARK GENERATOR OFF MAIN VALVE OPERATOR OPENS MODULE MONITORS PILOT FLAME WHEN THERMOSTAT IS SATISFIED OR WHEN HIGH LIMIT OR LOW WATER CUT OFF CONTACTS ARE OPEN VALVE OPERA TORS CLOSE PILOT and MAIN BURNERS OFF VENT DAMPER CLOSES CIRCULATOR OFF SYSTEM GOES TO STANDBY Sentry BOILER ROOM AIR SUPPLY AND VENTILATION An ample supply of air is required to obtain combustion and ventilation ALL AIR COMES FROM OUTSIDE directly through wall openings to the boiler or through unsealed openings around windows doors etc in the whole building When build ings are insulated caulked and weather stripped now or later on direct openings to outside may be required and should be provided If the boiler is not near an outside wall air may be ducted to it from outside
14. L TARGETING WORKS Thermal Targeting technology analyzes thermostat activity and continually evaluate how much heat the house requires When it is very cold outside the heat demand is high and the Fuel Smart HydroStat will raise the boiler s Target temperature to provide needed heat to the home When the outside tempera ture is milder the heat demand is lower During these periods the Fuel Smart HydroStat will lower the boiler s Target temper ature saving fuel while continuing to provide comfort to the house Smart DHW Priority During a call from indirect water heater the control will de energize the circulator contacts C1 C2 to heat only the indirect tank ensuring an adequate supply of domestic hot water The control will re energize the circuator when the indirect tank is satisfied or if the boiler temperature reaches 1707 If the indirect call continues for 45 minutes the control will overide the priority function energizing the circulator to provide space heating LED LEGEND and TEST SETTINGS BUTTON TEMP ACTIVE Indicates that the Fuel Smart HydroStat control is pow ered and that the temperature function is active a TEMP HIGH TEMP Iluminates E EJE when the boiler water temperature lt reaches the high limit setting It will remain lit until the water temperature falls Q LOW WATER boiler water reaches the target tempera ture the LED illuminates and the burner will shut d
15. ONTROL TWO HEATING APPLIANCES DAMPERS K J HEATING HEATING HEATING HEATING APPLIANCE APPLIANCE APPLIANCE APPLIANCE WRONG WAY CORRECT WAY Figure 3 above the vent pipe to avoid excessive heat or below the vent pipe to avoid possible condensate damage Figure 2 Horizontal Installation of Vent Damper WARNING DANGER Once you have begun vent damper installation procedure DO NOT restore electric power and gas supply until installation and inspection have been completed in order to prevent the main burners from operating DO NOT operate the boiler until the vent damper harness is plugged into vent damper operator Failure to observe this warning may create a hazardous condition that could cause an explosion or carbon monoxide poisoning 6 GAS PIPING A Local installation codes apply The pipe joint compound used on threads must be resistant to the action of liquefied petro leum gases B The gas supply line to the boiler should be run directly from the meter for natural gas or from the fuel tank for L P propane gas See page 2 for location of union and manual main shutoff valve that may be specified locally Selecting pipe size for natural gas 1 Measure or estimate the length of piping from the meter to the installation site 2 Consult gas supplier for heating value of gas Btu cu ft 3 Divide boiler rated input by heating value to find gas flow in piping cu ft per hour 4
16. OW SYSTEM VALVE i CIRCULATOR SHUTOFF PRESSURE VALVE REDUCING VALVE MAKE UP WATER SUPPLY BACK FLOW PREVENTOR IF REQUIRED EXPANSION TANK DIAPHRAM TYPE ISOLATION VALVE HOT WATER OUTLET DOMESTIC HOT WATER SHUTOFF VALVE COLD INLET WATER lw DRAIN VALVE 20 SAFETY INFORMATION FOR YOUR SAFETY READ BEFORE OPERATING WARNING f you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life TOU 10 11 12 This appliance is equipped with an ignition device which automatically lights the pilot DO NOT try to light the pilot by hand BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS DO NOT try to light any appliance DO NOT touch any electric switch DO NOT use any phone in your building mmediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions f you cannot reach your gas supplier call the fire department Use only your hand to push in or turn the gas control knob NEVER use tools If the knob will not push in or turn by hand DON T try to repair it call a qualified service techni cian Force or attempted repair may result in a fire or explosion DO NOT use this appliance if an
17. URES Continued RESTORE FACTORY DEFAULT SETTINGS To restore all features to the factory default settings see following chart for default settings 1 Turn the LO TEMP dial to access the Program Mode indicated in the display as Pro 2 Turn the HI TEMP dial to select feature dEF 3 Push the Test Settings Button to 4 to reset all features to the default settings 4 Reset LO TEMP and HI TEMP settings to desired temperatures see page 11 Record Default Your Description Setting Settings Purge Inactive Purge Active Automatic Reset Manual Reset Circulator operation on T TV call only Circulator operation on 11 12 call only Circulator operation on call from either Circulator Hold Off Active Circulator Hold Off Inactive Not available on this control Not available on this control Low Water Cut Off an Function Restore Factory u Restore Defaults Defaults n Do Not Restore Defaults SEE PAGE 18 FOR ADDITIONAL SETTINGS Circulator Hold Off feature would be Active if defaults are restord Turn it OFF Inactive if required Sentry SYSTEM START UP At initial start up with the Economy Feature active the control establishes a 145 F target temperature To test the high limit shut off function the Economy Dial must be turned to OFF Once tested restore the Economy setting If the heating demand is high the target will increase over time to satisfy the heat load NOTE 15 HOW THERMA
18. Use table A to select proper pipe size Example Boiler model S 150 is to be installed Distance from gas meter to the boiler is 30 ft Heating value of natur al gas is 1020 Btu cu ft Select proper pipe size Gas flow 150 000 Btu hour 147 cu ft per hour 1020 Btu cu ft At 30 ft length of pipe match required capacity from Table A choose higher capacity in this case is 152 cu ft per hour Required pipe size is 3 4 Improper gas pipe sizing will result in pilot flame outages insufficient heat and other installation difficulties For more information and also if other appliances are to be attached to the piping system see Appendix C of National Fuel Gas Code ANSI Z223 1 latest edition The boiler and its gas connection must be leak tested before placing the boiler in operation Use liquid soap solution for all gas leak testing DO NOT use open flame This boiler and its individual shutoff valve must be disconnect ed from the gas supply piping system during any pressure test ing of that system at test pressures in excess of 1 2 PSIG This boiler must be isolated from the gas supply piping sys tem by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 PSIG All gas piping used should be inspected thoroughly for cleanliness before makeup A sediment trap must be pro vided as illustrated on page 2 The minimum a
19. boiler must not be installed on carpeting C If boiler is to be located over buried conduit containing electric wires or telephone cables consult local codes or the National Board of Fire Underwriters for specific requirements WARNING SPECIAL ATTENTION FOR LIQUEFIED PETROLEUM L P PROPANE GAS FIRED BOILER INSTALLATIONS LPG appliances boilers shall be installed in accordance with applicable provisions of NFPA 58 Liquefied Petroleum Gas Code latest edition for installations in US and CAN CGA B149 1 latest edition for installations in Canada Liquefied Petroleum LP propane gas is heavier than air therefore Propane gas accumulate at floor level If you sus pect a leak do not attempt to operate boiler A spark or flame from the appliance boiler or other sources may ignite the accumulated propane gas causing an explosion or fire It is recommended that inspections for gas leaks be performed periodically by licensed professional and that leak detection devices be installed as a further safety measure CHIMNEY REQUIREMENTS A Sentry boilers may be vented into a masonry vitreous tile lined chimney or type B venting system NOT EXPOSED to the OUTDOORS below the roof line Venting and sizing of venting system must be in accordance with National Fuel Gas Code ANSI Z223 1 NFPA 54 latest edition which will be referred to as the National Fuel Gas Code Local codes apply If a masonry chimney is exposed to the outdoors on
20. by pre ventable occurrences A reputable water treatment company should be consult ed to evaluate and determine the best overall treatment program for your boiler equipment KEEP THE BOILER AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS Sentry BURNERS FAIL TO OPERATE CAUSE Safety pilot out or flame too low Gas supply valve shut off Electric switch open Blown or defective line fuse Operating or limit control contacts open or dirty Defective gas valve or pressure regulator or plugged bleed line Obstruction at main burner orifice Break in wiring or loose contact at control terminals Improper wiring om poc ON 10 Improper controls 11 Rollout or blocked vent safety switch open GENERAL TROUBLESHOOTING GUIDE FOR SERVICEPEOPLE 23 REMEDY Check clean re light See instructions Open gas valve S Close switch Replace fuse Check control Clean contacts or replace control Repair or replace OOV oO ct Check clean and reinstall Check with test light and correct Check and correct in accordance with wiring diagrams included with appliance instructions 10 Install proper controls 11 Replace rollout switch inspect flue passages prior to replacement or reset blocked vent safety switch by depressing the reset button BURNERS WILL NOT SHUT OFF CAUSE 1 Defective operating control gas valve or high limit
21. control 2 Improper wiring or short circuit REMEDY 1 Check repair or replace 2 Check wiring and controls FLASH BACK BURNING AT ORIFICES CAUSE Manifold gas pressure too low Improper primary air adjustment Gas regulator bleed too slow Burrs on orifice Improperly drilled orifice plugs Leaking automatic gas valve Adverse draft condition in boiler room Low main gas pressure Safety pilot improperly installed 0o NO Oh CD N REMEDY Adjust to proper manifold pressure Adjust air to produce soft clean flame Adjust bleed opening Remove burrs Install orifice plugs with proper drilling Repair or replace Check air supply and venting system Contact utility Correct to manufacturer s recommendations 00 N O ON DELAYED IGNITION CAUSE Pilot flame too low Pilot burner ports or pilot orifice clogged Burners or orifices out of alignment Excessive primary air Excessive burner input Adverse draft condition in boiler room FUMES AND GAS ODORS CAUSE 1 Leaks in gas piping or accessories 2 Gas leaks in service line or meter connections o mre o m 3 Blocked chimney 4 Boiler flueways blocked with soot 5 Undersized breeching or too many turns in breeching 6 Adverse draft condition in boiler room 7 Overfiring CONDENSATION IN BOILER FLUES OR IN VENT SYSTEM CAUSE 1 Underfiring 2 Boiler water maintained at too low a temperature level 3 Long horizontal r
22. cover and re seal with furnace cement Replace jacket top Remove and dispose of paper and accumulated material 8 If burner surfaces are not clean or if uneven flame indicates plugged burner ports remove and clean burners noo WARNING The ceramic combustion chamber in the burner box contains crystalline silica Wear proper dust mask and gloves when servicing combustion chamber or burners Crystalline Silica has been identified as a carcinogen or possibly carcinogenic to humans NOTE TO REMOVE BURNERS 1 Disconnect pilot at pilot mount or disconnect pilot gas line at gas valve before removing burners next to pilot 2 Lift burner and remove burner from orifice 3 Clean and replace burners and pilot Adjust burners as described on page 10 clean burners run a clean flue brush up the tube until all foreign matter is removed 4 SAFETY CHECK FOR CONTROL SYSTEM A High limit control test Set thermostat high enough for boiler water temperature to reach high limit control set ting When this temperature is reached the high limit switch should open and the main gas valve should close C Sentry JACKET TOP FLUE COLLECTOR FLUE COVER BOILER CLEANING automatically If the high limit does not operate to close the main gas valve the valve the high limit or the wiring is faulty Repair or replace immediately Gas valve safety shutdown test For boilers equipped with Honeywell S8600
23. ctivate Circulator Hold Off 1 Turn the LO TEMP dial to access the Program Mode indicated in the display as Pro 2 Turn the HI TEMP dial to select feature 5 3 Push the Test Settings Button to turn Circulator Hold Off or GFF 4 Reset LO TEMP and HI TEMP settings to desired temperatures see page 11 LOW WATER CUT OFF FUNCTION To turn off Low Water Cut Off 1 Turn the LO TEMP dial to access the Program Mode indicated in the display as Pro 2 Turn the HI TEMP dial to select feature 8 3 Push the Test Settings Button to turn Low Water Cut Off or GFF 4 Reset LO TEMP and HI TEMP settings to desired temperatures see page 11 OUTDOOR RESET READY AND WARM WEATHER SHUTDOWN Hydrostat Control model 3200 PLUS features outdoor reset ready must use optional kit part no 430423000 See installation instructions packed with the kit Outdoor Reset and Warm Weather Shutdown Attach the spade connectors to the right and center posts OR and C for full outdoor reset functionality including warm weather shutdown protection Wiring this way overides the Thermal Targeting function of the Fuel Smart HydroStat control See pg 11 Warm Weather Shutdown Only Connect the wire ends to the left and center spade connectors WWSD and C to add Warm Weather Shutdown functionality only When wired this way the Fuel Smart HydroSTat control will utilize its internal Thermal Targeting function to reset the boiler temperature See pg 10 14 Sentry OPTIONAL FEAT
24. d be at least 10 below the high limit setting NOTE For cold start operation the low limit must be turned OFF IMPORTANT If low limit temperature can not be set above 140 F remove jumper Setting range OFF or 110 200 F Dynamic Display Water Temperature and Real Time Verification of Setting Adjustments High Temperature Limit Setting 100 220 F Factory 190 F Low Temperature Limit Setting OFF or 110 220 F Factory OFF SETTING THE ECONOMY FEATURE The Economy Feature is factory set for a 1 zone heating system To adjust turn the ECONOMY Dial until the number dis played equals the number of heating zones Do not include indi rect water heaters in the number of heating zones The Economy Feature conserves fuel by reducing boiler temperature see How Thermal Targeting Works below If the heating system is unable to supply needed heat to the house the ECONOMY Dial should be turned to a lower setting example In a three zone house turn the dial to 2 or 1 Conversely if the boiler provides adequate heat added fuel savings can be achieved by selecting a higher setting example 4 or 5 If the heating and indirect water heater signals were not separated when wiring the control the Economy Feature should be turned OFF to insure the boiler supplies ade quate temperature to heat the indirect tank Vent Damper Receptacle Diagnostic LEDs Test Settings Button
25. diation should not occur Refer also to Owners 3 Water lines slightest leaks should be corrected 4 Low water cutoff for operation see instructions fur nished with unit 2 WATER LEVEL CHECK DURING HEATING SEASON A Check water pressure regularly and add water slowly to system when needed If much water is added venting may be necessary B Regular loss of water from water boiler system may indi cate either a system leak or a faulty air control system or a faulty automatic fill valve 3 ANNUAL INSPECTION AND CLEANING A It is important that this boiler be inspected by a compe tent serviceperson to help insure safe and reliable oper ation Check for gas leaks from valve and gas piping to burners and pilot If leaks are found repair or replace as required This inspection should include 1 Controls check See Safety Check for Control System No 4 below 2 Recheck of input gas rate to burners See Initial Start paragraph in Operating instructions section 3 Re adjusting for best flame characteristics of main flame and pilot s See Initial Start paragraph in Operating Instructions section and see Burner Adjustment section 4 Burner and boiler flue passage cleanliness BURNER AND FLUE CLEANING see figure 17 It is suggested that paper be placed on burners to collect any foreign material when cleaning flues Remove jacket top and flue cover Use wire brush to clean flueways Replace flue
26. eing valved to the piping system Sentry Separate control devices on the boiler and chiller may be used or a single set of air and pressure controls on the common pip ing may be preferred If the boiler is used to supply hot water to heating coils in air handling units flow control valves or other devices must be installed to prevent gravity circulation of water in the coils dur ing the cooling cycle IF REPLACEMENT PARTS ARE NEEDED When parts are needed refer to boiler model and serial num ber shown on the boiler name rating plate Refer to publication number S 11PL Sentry Replacement Parts for part numbers Whenever possible refer to the original order by number and date Control identification and replacement should not be attempted by unskilled personnel Only simple easily identified controls and parts may be obtained locally All other controls and parts should be identified by and ordered from Slant Fin Relief Safety valves must be ASME rated for the pressure and gross output of the boiler For replacement parts heating contractors should contact their Slant Fin boiler distributor Sentry 25 APPENDIX A Removal of Existing Boiler from Common Vent System At the time of removal of an existing boiler the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation while the other appliances remaining connected to the common venting system a
27. erature is below 100 degrees To change between degrees Fahrenheit and degrees Celsius 1 Turn the LO TEMP dial to access the Program Mode indicated in the display as Pro 2 Turn the HI TEMP dial to select feature 2 3 Push the Test Settings Button to c for Celsius or F for Fahrenheit 4 Reset LO TEMP and HI TEMP settings to desired temperatures see page 10 MANUAL RESET LOW WATER CUT OFF The low water cut off operation on the HydroStat can be set to operate in automatic default or manual reset mode When in manual reset mode the control will shut down the burner immediately when a low water condition is detected If the low water condition is sustained for 30 seconds the low water light will blink indicating that the control has locked out the burner The control can only be reset by pushing the Test Settings button on the top of the control The manual reset feature meets CSD 1 code requirements IMPORTANT The system must be checked by a qualified heating professional prior to resuming operation WARNING DO NOT ADD WATER UNTIL THE BOILER HAS FULLY COOLED To activate Manual Reset LWCO mode 1 Turn the LO TEMP dial to access the Program Mode indicated in the display as Pro 2 Turn the HI TEMP dial to select feature 3 3 Push the Test Settings Button to R for Automatic Reset Mode or b for Manual Reset Mode 4 Reset LO TEMP and HI TEMP settings to desired temperatures see page 10 To Test the Manual Reset Feature Press and ho
28. ermostat Connections Thermostat wire connections must be to T and TV screw terminals of boiler temperature control See figure 4 Thermostat Heat Anticipator Adjustments If the 24V room thermostat that controls this boiler has an adjustable heat anticipator connect entire system to thermostat and run the system while measuring the current drawn through the thermostat wires Set the heat anticipator at the value measured The set current should match power requirements by zone valves and relays Add an additional 0 1 Amp to the measured current for vent dampers Refer to the manufacturer s instructions of zone valve vent damper and relays Also see instructions with the thermostat 4 Multi Zoning For pump zoning system see figure 5 and 6 for zone valve system see figure 7 DO NOT use control transformer to power external accessories like zone valve and relay over load and or burned out transformer and boiler malfunction can result 5 Indirect External Water Heater If the system includes indirect water heater the indirect signal must be sepatayed from heating zone s system See figure 6 and 8 Follow steps below a Connect end switch of the indirect water heater relay to 11 and I2 of the boiler temperature control b Connect end switch of the heating zones s relays to T and TV of the boiler temperature control c Power DHW and heating zone s circulators through end switch relays as shown on figure 6 Do not connect heating zone s ci
29. for Three zone systems Recommended setting for Four zone systems Recommended setting for Five zone systems Provides highest level of fuel savings 12 Sentry OPTIONAL FEATURES NOTE The Program Mode Pro is accessed by turning the LO TEMP dial to a position just above OFF THERMAL PRE PURGE Thermal Pre Purge is designed to maximize boiler efficiency When activated the control will supply latent heat that may remain in the boiler from a previous run cycle to the next heating zone that calls The control monitors how quickly the boiler tempera ture is declining and activates the burner only when it determines that the latent heat is insufficient to satisfy the call During the purge cycle the display will indicate Pur This feature works with single zone and multi zone heating systems utilizing circulators or zone valves No change in wiring is needed To activate Thermal Pre Purge 1 Turn the LO TEMP dial to access the Program Mode indicated in the display as Pro 2 Turn the HI TEMP dial to select feature 3 Push the Test Settings Button to turn Thermal Pre Purge or OFF 4 Reset LO TEMP and HI TEMP settings to desired temperatures see page 10 Note Activation of this feature is not recommended for boilers with tankless coils DEGREES FAHRENHEIT OR CELSIUS The control has the ability to operate in degrees Fahrenheit or Celsius When operating in Celsius a will appear in the display next to the temperature whenever the temp
30. ge C All minimum clearances shown above must be met This may result in increased values of some minimum clearances in order to maintain the minimum clearances of others D Clearance from hot water pipes shall be 1 inch At points where hot water pipes emerge from a floor wall or ceiling the clearance at the opening through the finished floor wall or ceiling boards may not be less than 1 2 inch Each such opening shall be covered with a plate of non combustible material SAFETY KEEP THE BOILER AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS VENT PIPING A Vent piping installation must be in accordance with ANSI Z223 1 latest edition National Fuel Gas Code Venting of Equipment Other local codes may also apply and must be followed B Boiler vent pipe must be the full diameter of the boiler outlet See dimensions page 2 C If more than one appliance vents into a common breeching the area of the breeching must be equal to the area of the largest vent plus 50 of the area of the additional vent areas Vent connectors serving appliances vented by natur al draft shall not be connected into any portion of mechani cal draft systems operating under positive pressure Horizontal breeching or vent pipe should be as high as pos sible consistent with codes so that vertical vents from appli ances will have a high rise above draft diverter openings All horizontal ru
31. ld the Test Settings button located on the top of the control for 30 seconds to simulate a low water condition After 30 seconds the Low Water light will blink indicating that the control is locked out To reset the lock out condition press the Test Settings button momentarily MORE OPTIONAL FEATURES ON NEXT PAGE Sentry 13 OPTIONAL FEATURES Continued CIRCULATOR ACTIVATION OPTIONS When in the default mode the HydroStat activates the circulator C1 C2 contacts on calls to T TV The control can be pro grammed to activate the circulator on calls to 11 12 in place of or in addition to calls to T TV To change how the Circulator is activated 1 Turn the LO TEMP dial to access the Program Mode indicated in the display as Pro 2 Turn the HI TEMP dial to select feature 3 Push the Test Settings Button to select between the following options Circulator on T TV call only Circulator on 11 12 call only Circulator on both amp 11 2 calls 4 Reset LO TEMP and HI TEMP settings to desired temperatures see page 11 CIRCULATOR HOLD OFF ENHANCED CONDENSING PROTECTION To reduce the potential for condensing on a call for heat the control will allow the boiler to heat to 125 F prior to energizing the circulator Once energized the circulator will remain on for the duration of the heating call unless the boiler temperature drops below 115 F If this occurs the circulator will re energize when the boiler returns to 125 F To a
32. llation conforms with the National Fuel Gas Code ANSI Z223 1 latest edition When resizing any portion of the common venting system the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Appendix G in the National Fuel Gas Code ANSI Z223 1 latest edition 26 Sentry Sentry 27 SlantFin Corp 2014 Printed in the U S A 414 Publication No 5 41 P N 46 0602 Slant Fin BOILERS amp BASEBOARD SLANT FIN CORPORATION Greenvale N Y 11548 Phone 516 484 2600 FAX 516 484 5921 Canada Slant Fin LTD LTEE Mississauga Ontario Ony N r Ho You Want Heating You i www slantfin com
33. nd maximum gas supply pressure at the inlet of gas valve are shown on the boiler rating plate for the type of gas used Gas supply pressure should never be less than minimum or more than maximum pressure when the boiler or any other appliance is turned on or off Sentry Length Gas Flow In Piping cu ft per hr of Pipe Iron Pipe Size IPS inches in Feet 1 2 3 4 1 1 1 4 1 1 2 10 132 278 520 1050 1600 20 92 190 350 730 1100 30 73 152 285 590 890 40 63 130 245 500 760 50 56 115 215 440 670 60 50 105 195 400 610 70 46 96 180 370 560 80 43 90 170 350 530 90 40 84 160 320 490 100 38 79 150 305 460 At pressure drop of 0 3 in water specific gravity 0 60 ELECTRICAL WIRING DANGER Before wiring always turn off electric power supply otherwise shock or death can result 1 Power Supply A separately fused circuit is recommended Use a standard 15 amp fuse or breaker and 14 gage conductors in BX cable or conduit Provide disconnect means and overload protection as required See boiler wiring diagram Figure 4 Boiler must be electrically grounded in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements with the National Electrical Code ANSI NFPA 70 latest edition 2 Power Connection Connect hot and neutral to L1 and L2 terminal of the boiler control See figure 4 Connect ground wire to ground screw inside boiler control 3 Th
34. ns must slope upwards not less than 1 4 inch per foot of run Horizontal portions of the venting system must be supported to prevent sagging by securing each joint with metal screws and by providing hanger spaced no greater than 5 feet apart Sentry 5 D Vent or breeching into chimney should not be inserted past insi i i SENTRY PACKAGED P BOILERS the inside wall of the chimney liner MGOELS S 34 TO S 150 E All venting means should be inspected frequently See Care and Maintenance and separate User s Information Manual VENT DAMPER VENT DAMPER INSTALLATION The vent damper referred to in the following instructions is the Slant Fin Corporation vent damper This device is design certified by A G A for use ONLY on spe cific Slant Fin Corp gas boiler models These boilers must also be equipped with a plate which states that the boiler may be used with a Slant Fin Corp automatic vent damper device and BOILER indicates the proper vent damper model number TEMPERATURE CONTROL A INSTALLATION INSTRUCTIONS BEFORE YOU START TO INSTALL 1 Read this installation manual the DANGER plate attached to the top of the boiler the WARNING on the wiring diagrams vent damper carton and operator cover 2 Perform pre installation inspection as required by ANSI specification Z21 66 See Vent Damper Instructions 3 Select a proper convenient location for vent damper Vent damper may be installed vertical or horizontal on all mod els
35. one or more sides below the roof line exterior chimney ONE of the following options apply 1 Chimney must be re lined with a metallic liner When this is done the chimney will be considered NOT exposed to the outdoors and the requirements of the National Fuel Gas Code for NON exposed chimneys and or local codes will apply 2 If an exposed tile lined chimney is to be used WITHOUT a metallic liner the boiler must first meet the require ments of the National Fuel Gas Code B If an existing boiler is removed from a common venting system the common venting system may be too large for proper venting of the remaining appliances connected to the common vent Follow the test procedure shown in Appendix A of this manual to insure proper operation of venting system and appliances C Inspect for proper and tight construction Any restrictions or obstructions must be removed An existing chimney may require cleaning D Chimney or vent must extend at least 3 feet above any ridge within 10 feet of the chimney Sentry MINIMUM CLEARANCES FROM COMBUSTIBLE CONSTRUCTIONS A Minimum boiler clearances shall be as follows SENTRY SERIES MINIMUM CLEARANCE FOR COMBUSTIBLE CONSTRUC TION MINIMUM ALCOVE AND CLOSET CLEARANCE S 34 through S 150 Front e Rear e Left Side e Right Side 12 Top above boiler 12 Flue Connector e B Provide accessibility clearance of 24 on sides requiring servicing and 18 on sides used for passa
36. onomy feature is activated using the ECONOMY dial See How Thermal Targeting Works on page 4 for more information ECONOMY TARGET When the Economy feature is active the Fuel Smart HydroStat continually sets target temperatures below the high limit setting to maximize fuel efficiency When the TEST SETTINGS Button To Test Low Water Cut Off Press and hold the Test Settings but ton for 5 seconds The display will read LCO LWCOTEST red Low Water light should illuminate and the burner circuit B1 and B2 should de energize NOTE The control must be installed with a Hydrolevel Electro Well for low water cut off func tionality see page 2 for more details To View Current Settings Press and release the Test Settings Button in short intervals to sequentially display the following settings HIGH LIMIT SETTING LOW LIMIT SETTING LL ECONOMY CUBBENTTARGET TENERETUR 000 PRE PURGE SETTING PUR The display will return to boiler temperature default if Test Settings Button in not pressed for 5 seconds 16 Sentry SEQUENCE OF OPERATION FOR SENTRY BOILERS THERMOSTAT CALLS FOR HEAT CIRCULATOR ENERGIZED HIGH LIMIT CONTACTS CLOSED NO LOW WATER CUT OFF NO FURTHER CONTACTS CLOSED 5 VENT DAMPER RELAY ENERGIZED VENT DAMPER MOTOR OPENS VENT DAMPER END SWITCH CLOSES IGNITION CONTROL ENERGIZED SP
37. own The boiler water will con tinue to circulate and heat the house as long as the thermostat call continues The LED will stay lit until the boiler tem perature drops to the differential set point see Target Temp Differential on page 4 at which point the boiler will be allowed to fire again NOTE This LED illuminates TARGET SETTINGS Gp ACTIVE TARGET 10 see High Limit Differential on page TEMP LWCO ECONOMY regularly during normal boiler operation 4 The Fuel Smart HydroStat prevents burner operation while this LED is on LWOO ACTIVE Indicates that the low water cut off LWCO function of the Fuel Smart HydroStat is active When the control is installed with a Hydrolevel Electro Well this LED will be on at all times when the control is powered IMPORTANT If the control is installed with a well other than the Electro Well this LED will not illuminate indicating that the control is not providing low water cut off functionality WCOLOW WATER luminates if the boiler is in a low water condition The Fuel Smart HydroStat will prevent burner operation during this condition IMPORTANT The system must be checked by a qualified heating professional prior to resuming operation WARNING DO NOT ADD WATER UNTIL THE BOILER HAS FULLY COOLED G ECONOMY ACTIVE Indicates that the Thermal Targeting function is active and the Fuel Smart HydroStat will reduce boiler temperature to conserve fuel The Ec
38. rculators to C1 and C2 of the control Note For single heating zone with external indirect water heaters see figure 9 Sentry WIRING DIAGRAM FOR SENTRY S amp SENTINEL SE BOILERS HYDROLEVEL HYDROSTAT CONTROL MODEL 3200 24 THERMOSTAT VENT DAMPER HARNESS Li L2 2 BJ B2 HONEYWELL IGNITION MODULE NEUTRAL CIRCULATOR BLOCKED VENT ROLL OUT SAFETY SWITCH 7 SWITCH ELECTRIC IGNITION WIRE LEGEND FACTORY WIRED FIELD WIRED FIELD SUPPLIED PILOT GAS PIPE PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED IT MUST BE REPLACED WITH TYP 105 OR ITS EQUIVALENT CAUTION LABEL ALL WIRE PRIOR TO DISCONNCTION WHEN SERVICING CONTROLS WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION VERIFY PROPER OPERATION AFTER SERVICING 46 1014 000 Figure 4 Sentry ZONE 3 ZONE 2 ZONE 1 f 2 THERMOSTAT 2x THERMOSTAT THERMOSTAT R845A RB45A R845A RELAY ZONE 3 i RELAY ZONE 2 RELAY ZONE 1 HYDROLEVEL HYDROSTAT CONTROL MODEL 3200 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED L1 L2 2 81821112 EE E Figure 5 Multizoning of Sentry boilers pump zoning system using R845A relay MULTIZONING WITH INDIRECT WATER HEATER PUMP ZONING SYSTEM USING R882A B RELAY DHW TANK ZONE 2 ZONE 1 AQUASTAT THERMOSTAT THERMOSTAT DISCONNECT W
39. re not in operation a Seal any unused openings in the common venting system b Visually inspect the venting system for proper size and hor izontal pitch and determine there is no blockage or restric tion leakage corrosion and other deficiencies which could cause an unsafe condition c Insofar as is practical close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building Turn on clothes dryer and any appliance not connected to the common vent ing system Turn on any exhaust fans such as range hoods and bathroom exhausts so they will operate at maximum speed DO NOT operate a summer exhaust fan Close fire place dampers d Place in operation the appliance being inspected Follow the lighting instructions Adjust thermostat so appliance will operate continuously e Test for spillage at the draft hood relief opening after 5 min f utes of main burner operation Use the flame of a match or candle or smoke from a cigarette cigar or pipe After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas burning appliance to their previous conditions of use g Any improper operation of the common venting system should be corrected so the insta
40. rinted in U S A 414 PUBLICATION S 41 Rev C Part No 46 0602 Sentry Dimensions Install manual gas main MODEL shutoff valve 5 ft above floor when required by n local code Install sediment trap and connect with ground joint union Dotted piping by installing i p Vent Damper H EP Integral Han nd i contractor FPT Supply Draft Diverter ontroi a E Supply by others behind draft diverter Ignition E 1 Control E 15 Blocked Vent I Satety Switch TIT a integral Circulator H Draft Diverter 117 Circ Flange 1 124 1222 j Rolout Safet 1 2 Tapping pese 4 Safety Switch behind front panel Combination x Sediment Tra 161 Gas Valve 159 __ requie gas tapping 1 19 Left End View Front View Right End View Dimensions 3 4 to air eliminating MODELS S 60 to S 150 system by others j c B to alternate E Vent Damper Y _ ne air eliminating High Limit G hd system by others Control i Install manual gas main x shutoff valve 5 above Supply floor when required by others Ignition local code Instail Contro sediment trap and connect with ground joint union Pressure Temp Dotted ee te eset Gauge The Circulator 11 Circ Flange 1 Blocked Vent 44 Drain 1 n 1 Safety Switch Rollout Safety 1 Heturn Tapping Switch behind HAT front panel Combination me
41. screw on top PILOT FLAME Y 3 8 TO 1 2 4 FLAME SENSOR B Main Burners 1 Fire the boiler continuously for at least 15 minutes to reach burner operating temperature 2 Observe the flames all burners The base of all flame jets should be blue The tips should be blue shading to orange NOTE Dust disturbed by any movement will cause bright orange flames Wait for dust to settle 3 For one burner close the air shutter until some of its flame jet tips turn yellow white indicating insufficient primary air Then open shutter until whitish tips disappear completely Set all burner shutters to the same opening Observe to make sure that no yellow white tips appear over any portion of the flame Small yellow tips at the pilot location are per mitted NOTE This adjustment method gives MINIMUM primary air setting for safe combustion DO NOT attempt to make this adjustment unless burners are at operating temperature Adjustment should be made with burner access panel in final operating position Use of a mirror may be helpful to observe flames Note that burner ports are on top of main burner tube C Main Burner Ignition Checkout and Pilot Adjustment 1 The pilot flame must not smother or snuff out when test ed as follows a Main burner ignition from cold start repeat b Continued operation of main burner c Main burner ignition with appliance at maximum oper ating temperature after prolonged operation
42. see figures 1 and 2 4 Carefully unpack the unit DO NOT FORCE IT OPEN OR CLOSED Forcing the damper may damage the gear train and void the warranty B 1 This device must be installed after the boiler draft hood between the draft hood outlet and the connector to the out door chimney or vent as close to the draft hood as practi cable and without modification of the draft hood or the vent damper See figures 1 2 and 3 2 The inlet size of the vent damper must be the same nomi nal trade size as the outlet of the draft hood 3 This device must be located in a venting system or section of a venting system so that it serves only the single appli 5 34 TO 5 150 ance for which it is installed See figure 3 4 Clearances of not less than 6 inches 152MM must be maintained from combustible materials with provisions for Figure 1 Vertical Installation of Vent Damper on Sentry S Boilers Service access Install operator in any position as shown above DO NOT install the operator AFTER INSTALLATION 1 Operate system through two complete cycles to check for opening and closing in proper sequence and proper burn er operation DAMPER MUST BE IN OPEN POSITION WHEN BOILER MAIN BURNERS ARE OPERATING 2 Perform installation checks as required by ANSI specifica tion Z21 66 See Vent Damper Instructions 3 Checkthe troubleshooting section if problems arise with the installation CAUTION DO NOT USE ONE VENT DAMPER TO C
43. ting Water Systems 17 tion the installation must conform to American Society of Initial Start Mechanical Engineers Safety Code for Controls and Safety Safety Information and Lighting Instruction 20 Devices for Automatically Fired Boilers No CSD 1 If there B Adi Checking Gas is any conflict in the above requirements then the more urner Adjustment Checking Gas Input 20 21 stringent requirement will apply Care and Maintenance General Maintenance 21 Water Level 22 This manual must be left with owner and should be hung Annual Inspection and Cleaning 22 on or adjacent to the boiler for reference Safety Check for Control Systems 22 Protection from Freezing Water Treatment 22 Area 22 WARNING PEPINI ATSA aM EL This boiler gas piping and accessories must be installed Troubleshooting Guide 23 connected serviced and repaired by a trained experienced Piping a Heating Cooling System Ll 24 service technician familiar with all precautions required for Replacement 24 gas fired equipment and licensed otherwise qualified in s id pupu E 25 Compliance withthe authority naving jurisdiction Heating Contractor Boiler Model Number Address Boiler Serial Number Phone Number Installation Date P
44. un of smokepipe 4 Inadequate chimney or venting system REMEDY Increase gas supply to pilot Clean ports or orifices Realign burners or manifold Adjust primary air shutters Check and reduce to input shown on rating plate Check air supply and venting system o gre ou REMEDY 1 Locate leaks and repair 2 Close service supply valve shut down appliance and notify utility 3 Check and repair chimney 4 Clean flueways and adjust burners as described in the installation instructions Check manufacturer s recommendations Check air supply and venting system Adjust gas input to that shown on boiler rating plate REMEDY 1 Increase firing rate to that shown on rating plate 2 Set low limit controls to maintain a higher water temper ature If boiler is not equipped with low limit replace with one which has a combination low limit high limit aquastat 3 Relocate boiler or insulate breeching 4 Check chimney and venting recommendations 24 PIPING A HEATING COOLING SYSTEM TO A WATER BOILER AND CHILLER The chiller must be piped in parallel with the boiler Figure below illustrates a method of piping a heating cooling system to a water boiler and a chiller Hand valves shown or automatic valves must be installed to prevent circulation of chilled water in the boiler or hot water in the chiller The air control system and pressure control system must oper ate with chiller only or the boiler only b
45. ve system with indirect water heater DHW Priority using R882A B relay 10 Sentry SINGLE ZONE WITH INDIRECT WATER HEATER DHW PRIORITY USING R882A B RELAY DHW TANK AQUASTAT HYDROLEVEL HYDROSTAT p Y ro DISCONNECT CONTROL MODEL 3200 SWITCH e 11 9 R882A B gilla L2 ECONOMY 120V 24V 120V 60HZ TRANSFORMER A DHW TANK CIRCULATOR 1112 2 1 B182 I1 12 N P2 2 2 4 GREEN ped 120V 60Hz SPACE HEATING WHITE CIRCULATOR NEUTRAL T POWER SUPPLY PROVIDE DISCONNECT JUNCT ION MEANS AND OVERLOAD PROTECTION BOX AS REQUIRED Figure 9 Single zone with indirect water heater DHW Priority using R882A B relay 11 Sentry BOILERS EQUIPPED WITH HYDROSTAT CONTROL SETTING THE CONTROL NOTE Settings can be checked using the TEST SETTINGS Button SETTING THE HIGH LIMIT The high limit is factory set at 190 F To adjust turn the HI TEMP Dial until the desired setting is displayed Setting range 100 220 F SETTING THE LOW LIMIT The low limit is designed to main tain temperature in boilers equipped with tankless coils used for domestic hot water The low limit is factory set to OFF Prior to adjusting remove the jumper not equipped on all units Then turn the LO TEMP Dial 9 clock wise until the desired temperature is displayed For proper operation the low temperature limit setting shoul
46. wall openings Provisions for combustion and ventilation air must be made in accordance with section Air for Combustion and Ventilation of the National Fuel Gas Code ANSI Z223 1 latest edition or applicable provisions of the local building codes The following recommendation applies to buildings of energy saving con struction fully caulked and weather stripped Provide one GRILLED opening near the floor and one near the ceiling on an outside wall near the boiler or duct from such openings to the boiler EACH opening to be a minimum of one square inch per 2000 Btuh input to ALL APPLIANCES in the area For a total appliance input of 200 000 Btuh each open ing will be 100 square inches A grilled opening 10 X10 has 100 square inches of area If fly screen must be used over openings double the area and inspect and clean the screen frequently Openings must never be reduced or closed If doors or windows are used for air supply they must be locked open Protect against closure of openings by snow and debris Inspect frequently No mechanical draft exhaust or supply fans are to be used in or near the boiler area The flow of combus tion and ventilating air to the boiler must not be obstructed WATER PIPING A Packaged water boilers are equipped with a water circu lating pump mounted to return the water into the boiler For some installations the pump should be on the supply main See figure 10 B For zoning and piping arrangement
47. y part has been underwa ter Immediately call a qualified service technician to inspect the appliance and to replace any part of the control System and any gas control which has been underwater Operating Instructions STOP Read the safety information above Set the thermostat to lowest setting Turn off all electric power to the appliance This appliance is equipped with an ignition device which automatically lights the pilot DO NOT try to light the pilot by hand Remove control access panel Turn gas control knob clockwise Y till knob stops then continue to OFF DO NOT force Wait five 5 minutes longer for propane to clear out any gas then smell for gas including near the floor If you then smell gas STOP Follow B in the safety information above on this page If you don t smell gas go to next step Turn gas control knob counterclockwise to Replace control access panel Turn on all electric power to the appliance Set thermostat to desired setting If the appliance will not operate follow the instructions To Turn Off Gas To Appliance and call your service techni cian or gas supplier To Turn Off Gas To Appliance Set the thermostat to lowest setting Turn off all electric power to the appliance if service is to be performed Remove control access panel Turn gas control knob clockwise CN till knob stops then continue to OFF DO NOT force Replace control access panel
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