Boiler Controls PS /750B/750P. 20 (1.4) X Yes Yes X 64-A

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1 Steam oilers Low Water ut-offs are specially designed to protect steam boilers from the hazards of a low water condition. In operation they will interrupt the electrical current to the firing device, if the water in the system drops below the boiler manufacturers minimum safe water level. Our low water cut-offs also provide an additional circuit for a water feeder or a low water alarm, should you desire to install one, for additional protection. How to Select Low Water ut-offs for Steam oilers oiler pressure and the method of installation are the primary factors to consider when selecting a low water cut-off. We recommend that secondary (redundant) Low Water ut-off controls be installed on all steam boilers with heat input greater than 400,000 TU/hour or operating above 5 psi of steam pressure. t least two controls should be connected in series with the burner control circuit to provide safety redundancy protection should the boiler experience a low water condition. Moreover, at each annual outage, the low water cut-offs should be dismantled, inspected, cleaned, and checked for proper calibration and performance. oiler ontrols Maximum Method of Installation low own Valve oiler onnect to the Provided with Pressure irectly into oiler with " Product Size Low Water psi (kg/cm 2 ) oiler Tappings* qualizing Piping Series Required ut-off 5 () X X PS /750/750P X 67 4 No N/ 4 No N/ X 6 Yes No Yes Yes 20 (.4) X Yes Yes 50 (.5) 50 (0.5) X 69 2 No N/ X X 42S Yes No 42S- X 64- Yes Yes X 6 Yes No X 64 Yes No Yes Yes X Yes No X 9/9 Yes No X 50S/50 Yes No X 57S/57 Yes No 250 (8) 4 94/94 4 Yes No X 750-/4 Yes No * Use the tapping designated by the boiler manufacturer for low water cut-off installation. 27

2 oiler ontrols How to Select ontrols STM OILRS Steam Heating oilers are classified as boilers in closed heating systems where all condensate is returned to the boiler. est recommendation for all automatically fired boilers is a feeder cut-off combination. It adds water as needed to maintain a safe operating level, and stands by to interrupt circuit to burner if water level drops into emergency zone. Steam Process oilers are classified as boilers in systems where not all the condensate is returned, and some make-up water is needed. separate feeder and separate cut-off are recommended, so operating levels can be set for the wider differential required in such service. Selection of the correct feeder cut-off combination, or feeder depends upon:. Maximum boiler pressure. 2. ifferential between water supply pressure and the pressure setting of the steam safety valve.. oiler size HOT WTR OILRS est recommendation for all automatically fired boilers is a feeder cut-off combination. It adds water if needed to match the discharge capacity of the relief valve, and stands by to interrupt circuit to burner if water level drops into emergency zone. Selection of the correct feeder cut-off combination, or feeder depends upon:. Maximum boiler pressure. 2. ifferential between water supply pressure and the pressure setting of the safety relief valve.. oiler size oiler Rating TU HP R ond. Lb./Hr, , , ,06 7.5, ,750 0, ,48 2.5, ,25 5 2, , , , , ,875 25,500 86,004, ,200,05,7, ,900,208,9, ,600,80,506, ,00,55,67, ,000,725 onversion actors oiler Horsepower (HP) = Gallons of Water TUH R TUH = = = = R 9 Lbs. of Water 8. R x 240 TUH 240 HP x,479 oiler Steaming Rate (Gallons Per Minute) R GPM = 2000 GPM = (HP) x GPM = GPM = Pounds of condensate per hour = TU 480,000 R x R 4 Water eeders and ombination Water eeders/low Water ut-offs oiler Water eeders and eeder ut- Off ombinations are used to provide automatic operation, and to safeguard steam and hot water boilers against the hazards of a low water condition. feeder cut-off combination mechanically adds water as needed to maintain the required minimum water level, and electrically stops the firing device in case of an emergency. 28

3 How to Select Water eeders (continued) Steam oilers oiler Size Maximum (Mfr. Gross Rating Sq. t. of R) oiler Series haracteristics Pressure *ifferential Pressure psi (kg/cm 2 ) psi (kg/cm 2 ) 0 (.7) 20 (.4) 0 (2.) 40 (2.8) 50 (.5) 60 (4.2) 70 (4.9) Uni-Match or utomatic ired 5 (.0) Heating oilers ll oilers up to 2,000 sq. ft. 0 or utomatic ired 25 (.8) Heating oilers ll oilers up to 5,000 sq. ft. 47 or Heating or 25 (.8) Process oilers ll oilers up to 5,000 sq. ft or utomatic ired 25 (.8) Heating oilers ll oilers up to 5,000 sq. ft. 247 or Heating or 0 (2.) Process oilers ll oilers up to 5,000 sq. ft or utomatic ired 0 (2.) Heating oilers ll oilers up to 5,000 sq. ft. 5 or Heating or 5 (2.5) 8,600 2,000 5,000 7,600 20,000 2,800 2,400 Process oilers 5-2 or utomatic ired 5 (2.5) 8,600 2,000 5,000 7,600 20,000 2,800 2,400 Heating oilers 5S or Heating or 5 (2.5) 0,500 7,500 22,400 26,500 0,000 2,600 5,000 Process oilers 5S-2 or utomatic ired 5 (2.5) 0,500 7,500 22,400 26,500 0,000 2,600 5,000 Heating oilers 5 or Heating or 75 (5.) 8,600,600 4,600 7,000 8,800 20,600 22,00 Process oilers 5-2 or utomatic ired 75 (5.) 8,600,600 4,600 7,000 8,800 20,600 22,00 Heating oilers *ifferential pressure should be based on water supply pressure at boiler, minus pressure setting of steam safety valve oiler ontrols 29

4 Low Water ut-offs lectronic or Hot Water and Steam oilers Series 750 Low Water ut-offs with Remote Sensor or commercial or industrial applications Primary or secondary control on hot water boilers Secondary control (manual reset models only) on steam boilers oiler ontrols Manual reset models meet the requirements of SM Standard S-. If the control is in a low water condition when there is an interruption of power, the control will remain in a low water condition when power is restored. The reset button will need to be pressed when the water level is restored to a level above the probe to allow the burner to fire. Green L power indicating light Red L low water indicating light Test switch 20,000 ohms sensitivity Options: - Manual reset button - 750P-MT model includes P-800 probe - 750P-MT-U model includes P-800-U probe NM enclosure Maximum ambient temperature 20 (49 ) NOW WITH SL-LNING PRO! Series 750 ontrol Unit 750P-MT P-MT-U-20 (Remote sensor must be ordered separately ((see page 72-74) G 750-T uto reset 2 (.9) 750-MT Manual reset 2 (.9) 750P-MT Manual reset and P-800 probe 2.5 (.9) 750P-MT-U Manual reset and P-800-U probe 2.5 (.9) lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 240 V or 240 V 50 or 60 Hz G Std. U Std U 6 8 (62) 5 8 (0) (65) 9 6 (40) 6 (78) 2 8 (54) 9 6 (40) 4 4 (20) 0

5 High Water ut-offs lectronic or Steam oilers Model 750-HW-MT-20 The 750-HW-MT-20 control provides continuous protection against a HIGH WTR condition in steam boilers and other water level applications. It can be wired to provide alarm, turn off boiler or turn off water feeder pumps when a HIGH WTR condition occurs. The manual reset function will require the unit be reset after water has dropped below the level of the probe. or commercial or industrial applications Primary or secondary control on hot water boilers Green L power indicating light Red L HIGH WTR indicating light Manual Reset Test switch 20,000 ohms sensitivity NM enclosure Maximum ambient temperature 20 (49 ) Model 750-HW-MT-20 ontrol Unit oiler ontrols (Remote sensor must be ordered separately (see page 72-74) 750-HW-MT Manual reset 2 (.9) lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 240 V or 240 V 50 or 60 Hz 6 8 (62) 5 8 (0) (65) 4 (20)

6 oiler ontrols Low Water ut-offs lectronic or Steam oilers New and Improved Series PS-800 Low Water ut-offs or residential and commercial applications lectronic operation New eatures: User-friendly diagnostics - Red low water and shorted probe L - Green power and test L Probe sensitivity: 7,000 ohms No lock out with loss of power if probe is in water elay on Make (OM) feature (5 seconds) elay on reak (O) feature (0 seconds) No blow down of control required when mounted directly into boiler tappings Test button standard on all models Options available include Manual reset xtended barrel and remote sensor models 20 volt and 24 volt models (24 volt models meet NSI specification Z2.a) Power consumption.7 V Provisions to add alarm or automatic water feeder Maximum ambient temperature 20 (49 ) Maximum steam pressure 5 psi ( kg/cm 2 ) Maximum water temperature 250 (2 ) 2 PS Low water cut-off 20V 2.7 (.2) PS-80-M PS w/manual reset 2.7 (.2) PS-80-U PS w/ext. barrel 2.7 (.2) PS-80-M-U PS w/ext. barrel 2.7 (.2) & manual reset PS Low water cut-off 24V 2.7 (.2) PS-802-M PS w/manual reset 2.7 (.2) PS-802-U PS w/ext. barrel 2.7 (.2) PS-802-M-U PS w/ext. barrel 2.7 (.2) & manual reset PS-802-RX PS w/remote sensor 2.7 (.2) Series PS-800 lectrical Ratings NOW WITH SL-LNING PRO! Motor Switch Rating (mperes) Model Voltage ull Load Locked Rotor Pilot uty 24 V 24 V 50 V at 24 V 20 V 20 V V at 20 or 240 V 240 V or 60 Hz G H J K ll U Std SP RX2 U ll RX 4 4 (08) 9 6 (40) 6 (78) 2 8 (54) 8 (5) 2 8 (54) 9 6 (40) 4 (20) 6 (2) 5 6 (48) 8 (5) (7) 7 8 (22) J UTION o not use manual reset models with electric automatic water feeders. ailure to follow this caution can cause flooding and property damage. K G H

7 Low Water ut-offs lectronic or Hot Water oilers New and Improved Series PS-850 Low Water ut-offs or residential, commercial and industrial applications lectronic operation New eatures: User-friendly diagnostics - Red low water and shorted probe L - Green power and test L Higher probe sensitivity: 7,000 ohms No lock out with loss of power if probe is in water No blow down of control required when mounted directly into boiler tappings Test button standard on all models Options available include Manual reset xtended barrel, remote and short probe models 20 volt and 24 volt models (24 volt models meet NSI specification Z2.a) Power consumption.7 V Provisions to add alarm Maximum ambient temperature 20 (49 ) Maximum water pressure 60 psi (.2 kg/cm 2 ) Maximum water temperature 250 (2 ) lectrical Ratings Switch Rating (mperes) Model Voltage ull Load Locked Rotor Pilot uty 24 V 24 V 50 V at 24 V 20 V 20 V V at 20 or 240 V 240 V or 60 Hz Series PS-850 NOW WITH SL-LNING PRO! PS Low water cut-off 20V 2.7 (.2) PS-85-U PS w/extended 2.7 (.2) barrel PS-85-M PS w/manual reset 2.7 (.2) PS-85-M-U PS w/extended 2.7 (.2) barrel & manual reset PS-85-RX PS w/remote probe 2.7 (.2) PS-85-M-RX PS w/remote probe 2.7 (.2) & manual reset PS-85-SP PS w/short probe 2.7 (.2) PS-85-SP-M PS w/short probe 2.7 (.2) & manual reset PS Low water cut-off 24V 2.7 (.2) PS-852-M PS w/manual reset 2.7 (.2) PS-852-SP PS w/short probe 2.7 (.2) PS-852-SP-M PS w/short probe 2.7 (.2) & manual reset G H J K ll U Std SP RX2 U ll RX 4 4 (08) 9 6 (40) 6 (78) 2 8 ( 54 ) 8 (5) 2 8 (54) 9 6 (40) 4 (20) 6 (2) 5 6 (48) 8 (5) 4 (20) (25) (7) 7 8 (22) J K G H oiler ontrols UTION o not use manual reset models with electric automatic water feeders. ailure to follow this caution can cause flooding and property damage.

8 Low Water ut-offs lectronic or Hot Water oilers R-24 Low Water ut-offs NOW WITH SL-LNING PRO! or residential applications ompact size oiler ontrols asy to install and wire utomatic reset feature resumes operation after a power outage when water is on probe Green power on indicating L Red low water indicating L Solid state operation 5,000 ohms probe sensitivity Maximum ambient temperature 20 (49 ) Maximum water temperature 250 (2 ) Maximum water pressure 50 psi (.5 kg/cm 2 ) 5 ft. harness cable included w/- and-s models Model R-24 lectrical Ratings Voltage Power onsumption Load Switching 24 V 2.5 V 2 at 24 V Note: 5 m minimum current draw is required. 4 4 (9) 4 (9) (76) 4 (9) R-24S UWH-R-24S R Residential LWO.7 (.2) R Residential LWO w/harness for atmospheric boilers with aquastats & vent dampers R-24S Residential LWO w/harness for sealed combustion HW boilers with integrated electronic burner controls or aquastats UWH-R Replacement cable for R-24 & () 6-pin harness and () 4-pin harness UWH-R-24-S Replacement cable for R-24 & (2) 2-pin power harness R-24 UWH-R-24 4

9 Low Water ut-offs lectronic or Hot Water oilers R-22- Low Water ut-offs NOW WITH SL-LNING PRO! or residential applications lectronic operation asy to install and wire Red low water indicating L Green power indicating L Now with test button utomatic reset No blow down required 20,000 ohms probe sensitivity Maximum ambient temperature 20 (49 ) Maximum water temperature 250 (2 ) Maximum water pressure 60 psi (.2 kg/cm 2 ) Series R-22- H G oiler ontrols lectrical Ratings Voltage Power Load Switching onsumption 20 V. V 5.8 at 20 V G H 2 4 (70) 5 8 (5) 8 (5) 4 (20) 7 8 (22) 6 (99) 4 6 (8) R Low water cut-off.7 (.78) 5

10 Low Water ut-offs lectronic or Hot Water oilers R-20 Low Water ut-offs oiler ontrols NOW WITH SL-LNING PRO! oiler ontrols or residential and (where codes allow) commercial applications lectro-mechanical operation utomatic reset feature resumes operation after a power outage when water is on probe No blow down required 6,000 ohms probe sensitivity Maximum ambient temperature 20 (49 ) Maximum water temperature 250 (2 ) Maximum water pressure 60 psi (.2 kg/cm 2 ) Series R-20 G lectrical Ratings Voltage Power Load Switching onsumption 20 V 5 V 5.8 at 20 V G 6 8 (62) 5 8 (0) (65) 5 8 (4) 8 (5) 4 (20) 7 8 R Low water cut-off.8 (.7) 6

11 Low Water ut-offs lectronic ombination Low Water ut-off/pump ontrollers for Steam oilers Series 50 Primary and secondary low water fuel cut-off protection and pump control for commercial and industrial steam boilers Motorized valve controller, low water cut-off, and alarm actuators for boilers, vessels and tanks Set points and differentials remain constant throughout pressure range iagnostic features incorporated in the control include: High ambient temperature protection Internal Ls that indicate water position and condition xternal Ls that indicate control activity Replacement head assemblies available for Model 50 and 50S Series upgrade ontrol unit can be mounted remotely from probes djustable 60-second burner-off time delays djustable /4 or -/6 pump differentials HP burner and pump relays NM enclosure Maximum ambient temperature 5 (57 ) Maximum operating pressure 50 psi (0.5 kg/cm 2 ) Maximum operating temperature 66 (85 ) at probes Manual reset models meet the requirements of SM Standard S-. If the control is in a low water condition when there is an interruption of power, the control will remain in a low water condition when power is restored. The reset button will need to be pressed when the water level is restored to a level above the probe to allow the burner to fire. 60,000 ohms probe sensitivity Number Number escription lbs. (kg.) ombination low water 22.9 (0.4) cut-off/pump controller 50-M w/manual reset 22.9 (0.4) w/water column 6.9 (6.7) 57-M w/manual reset 6.9 (6.7) w/alternate tappings 9.0 (7.5) 57-R w/alternate tappings 9.0 (7.5) 57-RM w/alternate tappings 9.0 (7.5) 57-RL w/alternate tappings 9.0 (7.5) 57-RLM w/alternate tappings 9.0 (7.5) Series 57 G H G H J J J J K UT O LVL Series 50 Series (69) 5 6 (286) 6 (52) 4 6 (59) 5 6 (84) G H J (275) 4 8 (05) 7 6 (87) Series (62) (59) (25) L UT-O LVL G H J K L (9) 6 (406) (292) (89) (49) oiler ontrols lectrical Rating and Switch Ratings Supply Probe ull load (mps) Locked Rotor (mps) Pilot uty (V) Motor (HP) Voltage Voltage NO (N), (V) NO (N), (V) NO (N), (V) NO (N), (V) 20 V 5 V 6 (5.8), (4.8), (290), 20 (/4), 20 50/60Hz Maximum 8 (4.9), (7.4), (290), (/2), 240 7

12 Low Water ut-offs Mechanical or Steam oilers Series 6 Low Water ut-offs or residential and commercial low pressure steam boiler applications oiler ontrols or boilers of any steaming capacity djustable X outlet for easy installation ual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder Packless bellows " equalizing pipes and blow down valve required Maximum steam pressure 20 psi (.4 kg/cm 2 ) Series 6 UT-O LVL G lectrical Ratings Motor Switch Rating (mperes) 20 V. mp, 240 V.5 mp Voltage ull Load Locked Rotor Pilot uty 20 V V at V or 240 V G (252) (89) 6 (65) 8 (79) 5 8 (0) Low water cut-off.5 (6.) 8

13 Low Water ut-offs Mechanical or Steam and Hot Water oilers Series 6 Low Water ut-offs or residential, commercial, and industrial applications Heavy duty Includes No. 2 switch Optional manual reset available Maximum boiler pressure 50 psi (.5 kg/cm 2 ) Use with T-4 on hot water systems Series 6 UT O LVL G H J oiler ontrols lectrical Ratings Motor Switch Rating (mperes) 20 V.5 mp Voltage ull Load Locked Rotor Pilot uty 20 V V at 240 V or 240 V 60 Hz G H J 6 (65) (65) 5 5 () 9 8 (28) 8 (79) 0 (267) 5 8 (0) Low water cut-off.5 (6.) w/ float block 5.0 (6.8) 6-M w/float block & manual reset 5.0 (6.8) 6-M w/manual reset 4.0 (6.4) 9

14 Low Water ut-offs Mechanical or Steam and Hot Water oilers Series 64 Low Water ut-offs oiler ontrols or residential, commercial, and industrial boiler applications of any steaming capacity Heavy uty djustable X outlet for easy installation ual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder Packless bellows Optional manual reset available " (25mm) equalizing pipes required Maximum boiler pressure 50 psi (.5 kg/cm 2 ) Use with T-4 on hot water systems SRIS 64 UT-O LVL (252) (65) 6 (65) 8 (79) Model 64- Low Water ut-offs Quick hook-up fittings provided for installation directly into gauge glass tappings G UT-O LVL Model 64- G min. max (66) (252) 4 () (72) 8 (9) 8 (79) Low water cut-off. (5.) w/quick hook-up fittings 8. (8.) w/float block.5 (5.2) 64-M w/manual reset 2.5 (5.7) lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at V or 240 V 40

15 Low Water ut-offs Mechanical or Steam and Hot Water oilers Series 764 Low Water ut-offs or residential, commercial, and industrial boiler applications of any steaming capacity Heavy duty djustable X outlet for easy installation ual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder Packless bellows 2 " side tapping provided for installation with close nipple Maximum boiler pressure 50 psi (.5 kg/cm 2 ) Series 764 UT O LVL oiler ontrols lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at V or 240 V (75) 6 (65) 8 (79) Low water cut-off 2.5 (5.7) 4

16 Low Water ut-offs Mechanical or Steam oilers Series 67 Low Water ut-offs or residential and commercial applications or boilers of any steaming capacity K oiler ontrols Quick hook-up fittings provided Lever-operated, full port ball valve for easy blow down djustable X outlet for easy installation ual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder Optional features Low voltage switches for self-generating millivolt circuits Manual reset switch Series 67 G J H Max Swing L M N Large float chamber Maximum steam pressure 20 psi (.4 kg/cm 2 ) K J lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at V or 240 V Model 67-LQHU (without quick hook-up fittings) G H Max Swing M N G H J K L M N min. max. 6 (65) 4 (56) 4 (45) 4 4 (2) 8 (86) 8 (29) (40) (247) 9 6 (90) 2 (64) 2 6 (7) Low water cut-off 0 (4.5) 67-G for millivolt service 0 (4.5) 67-LQHU without quick hook-up fittings 8 (.6) 67-M w/manual reset 0 (4.5) 42

17 Low Water ut-offs Mechanical or Steam oilers Series 767 Low Water ut-offs or residential and commercial low pressure boiler applications or boilers of any steaming capacity 2 " body tapping for side mounting on boilers Lever-operated, full port ball valve for easy blow down djustable X outlet for easy installation ual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder Large float chamber Maximum steam pressure 20 psi (.4 kg/cm 2 ) Series 767 N J H G P (Max. Swing) K L M oiler ontrols lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at V or 240 V G H J K L M N P 5 (29.) (86.5) (7) 5 8 (7) (5.9) 5 8 (92) 8 5 (207) 9 6 (246.6) 5 (40) Low water cut-off 8.5 (.9) 4

18 Low Water ut-offs Mechanical or Steam oilers Series 69 uilt-in Low Water ut-offs or residential and commercial low pressure steam boiler applications oiler ontrols or boilers of any steaming capacity or mounting in 2 " boiler side tappings Insertion lengths available in 6-4 8" (0-05mm) Packless bellows djustable X outlet for easy installation ual precision switches for dependable operation of the low water cut-off and an alarm or electric water feeder Optional low voltage switches for self-generating millivolt circuits Series 69 UT-O LVL 2 4 Maximum steam pressure 20 psi (.4 kg/cm 2 ) lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at V or 240 V Insertion Model Length (05) 69 8 (79) (57) (25) 4 8 (05) 69 4 (45) 469, (0) 8 () 2 9 (24) Number Number escription lbs. (kg) Low water cut-off w/4 8" (05mm).7 (.7) insertion length 69-MV-P w/millivolt switch 4.0 (.8) w/ 8" (79mm) insertion length 4.0 (.8) w/2 4" (57mm) insertion length 4.0 (.8) w/ 4" (45mm) insertion length 4.0 (.8) 69-MV w/millivolt switch 4.0 (.8) w/ 6" (0mm) insertion length 4.0 (.8) w/ 6" (0mm) insertion length 4.0 (.8) w/ 4" tapping 44

19 Low Water ut-offs ombination Low Water ut-off/pump ontrollers for Steam oilers Series 42S Low Water ut-off/pump ontrollers or residential, commercial, and industrial low and medium pressure steam boilers with a separate water column or boilers of any steaming capacity Monel bellows provides corrosion resistance Single pole, single throw snap action switches nclosed junction box protects switches Optional features Quick hook-up fittings Gauge glass connector Maximum pressure 50 psi (.5 kg/cm 2 ) with MRURY R Snap-ction Switches SRIS 42S G UT-O LVL oiler ontrols lectrical Ratings Pump ircuit Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 240 V or 240 V T UT-O LVL Voltage larm ircuit Rating (mperes) mps 20 V 240 V /2 42S 2902 ombination low water cut-off/ 5.5 (7.0) pump controller 42S S w/quick hook-up fittings 2. (9.7) 42S-N S w/glass connector 2. (9.7) MOL 42S- MOL 42S-N Model G 42S 2 4 () (65) (225) 6 (94) 8 (79) 42S- 2 4 () (65) (84-47) 2 4 (45) 8 (79) 42S-N 2 4 () (65) (225) 6 (94) 8 (79) L K J M G G H Q N P UT-O LVL S R Model H J K L M N P Q R S T 42S-N (65) (65) 4 (45) 6 (94) 6 (46) 6 (27) 6 (27) (8) (67) 45

20 Low Water ut-offs Mechanical or Steam oilers Series 50S Low Water ut-off/pump ontrollers or commercial and industrial low or high pressure boiler applications or boilers of any steaming capacity oiler ontrols Monel bellows provides corrosion resistance Snap action switches for high temperature service Single pole, single throw switch for pump control Single pole, double throw switch for low water cut-off and alarm actuation Optional features Manual reset 2 Single pole, single throw switches 2 Single pole, double throw switches loat block SPT threads Maximum pressure 50 psi (0.5 kg/cm 2 ) Series 50S with MRURY R Snap-ction Switches G H J J UT-O LVL or new electronic 50 Series see page 7 Model 50S-M Maximum differential operation Prevents nuisance burner shutdowns in low pressure applications Maximum operating pressure 50 psi (.5 kg/cm 2 ) UT-O LVL or additional information see page 48 lectrical Ratings Pump ircuit Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 240 V or 240 V 50S 7702 ombination low water cut-off/ 24.7 (.2) pump controller 50S S w/float block 24.7 (.2) 50S--M S- w/manual reset 24.7 (.2) 50S-M S w/float block and max. dif (.2) 50S-M-M S-M w/manual reset 24.7 (.2) 50S-M S w/maximum differential 24.7 (.2) 50S-M S w/manual reset 24.7 (.2) 50S-M-M S-M w/maximum differential 24.7 (.2) 58S S w/2 SPT switches 26. (.9) 58S-M S w/manual reset 27. (2.4) 59S S w/2 SPST switches 26.0 (.8) larm ircuit Rating (mperes) Voltage mps 20 V 240 V / (49) (6) 6 (52) 4 (7) G H J 5 6 (84) (252) 4 8 (05) 7 6 (87) 46

21 Low Water ut-offs Mechanical or Steam oilers Series 57S Low Water ut-off/pump ontrollers or residential, commercial and industrial low or high pressure boiler applications or boilers of any steaming capacity Monel bellows provides corrosion resistance loat chamber with integral water column provided `Snap action for high temperature service Single pole, single throw switch for pump control Single pole, double throw switch for low water cut-off and alarm actuation Optional features Manual reset Integral conductance probes for additional levels and greater operating differential-model 57S-RP-M " or 4" equalizing tappings " or 4" tappings for gauge glass/tri-cock installations SPT threads Maximum pressure 50 psi (0.5 kg/cm 2 ) or new electronic 50 Series see page 7 Model 57S-M Maximum differential operation Prevents nuisance burner shutdowns in low pressure applications Maximum operating pressure 50 psi (.5 kg/cm 2 ) or additional information see page 48 lectrical Ratings ut-off and Pump ircuits Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 240 V or 240 V Voltage larm ircuit Rating (mperes) mps 20 V 240 V /2 Series 57S Model 57S-R G J H J G L K J J L 57S S low water cut-off w/water column 9.7 (8.0) 57S-M S w/maximum differential 9.7 (8.0) 57S S w/alternate tappings 9.5 (7.9) 57S--M S- w/manual reset 9.5 (7.9) 57S-M S w/manual reset 9.7 (8.0) 57S-M-M S-M w/maximum differential 9.7 (8.0) 57S-R S w/alternate tappings 42.0 (9.0) 57S-R-M S-R w/manual reset 42.0 (9.0) 57S-RP-M S w/2 integral conductance probes 5.0 (2.) 57S-RL S w/alternate tappings 42.0 (9.0) 57S-RL-M S-RL w/manual reset 42.0 (9.0) Model G H J K L 57S 57S- 4 57S-R 57S-RL 4 8 (9) (59) (25) 4 (298) 6 (406) (292) (89) 4 8 (9) (59) (25) 4 (298) 6 (406) (292) (89) 8 (9) 2 4 (57) (49) 4 (298) 7 (42) (292) (89) 9 6 (45) (89) (49) 4 (298) 7 (42) 2 4 (24) (89) K (49) (49) (59) (59) oiler ontrols 47

22 M Model Setpoints oiler ontrols The bellows on the 50 units are sensitive to pressure. t higher pressures the bellows is stiffer requiring more force to move it. t lower pressures the bellows is more pliable (less stiff) requiring less force to move it. onsequently, the on/off points tend to narrow at lower pressures. (Less distance between on and off). arly versions of the 50 units with mercury bulb switches were able to be adjusted. These units had knurled adjustment screws that could be used to raise, lower or widen the setpoints. lthough the available adjustment was small (usually 6" to 8 " total), it was enough to compensate in the field for lower pressure systems. Later versions of the 50 with mercury bulb switches and all snap switch units are not adjustable in the field. The M models were created to provide a 50 control with factory settings to compensate for the narrowing of setpoints on new and existing installations. On M models the distance between pump off and burner off is increased by approximately 7 6 ". Note that the pump on/off differential on both standard and M models is set at 4". This larger differential is accomplished by lowering the burner off setpoint 8 " below the casting line on M models when setting the burner on/off points at 50 psi. This compensates for the narrowing of the setpoints at lower operating pressures because the burner off point will move upward (closer to the casting line) at lower pressures. Operating Levels Series 50/57 & Series 50S/57S Standard Models /4" ifferential "M" Models PUMP O PUMP ON /8" ifferential urner Off Switch setpoints at 50psi urner Off /6" ifferential 48

23 low own Piping SRIS 50S, 50 N SRIS 9/94 ONTROLS Larger LWO/Pump controller units are installed on equalizing lines. The piping must be full size and include cross connections where pipes change direction. ach control should include its own blow down piping and valves. Recommended ual Valve low-own Piping These controls should be blown down daily when installed on commercial/industrial boilers and weekly in residential applications. Regular blow down keeps the control free of sediment and ensures it operates properly. When blowing down a control at pressure, the blow down valve should be opened slowly. The piping needs to be warmed up and stagnant water in the drain piping needs to be pushed out. Suddenly opening a blow down valve causes steam to condense, which creates water hammer. rushed floats and damaged linkages can occur when water hammer occurs due to improper blow down piping. onnecting lines to boiler should be straight runs Positive Shutoff Valve (all Valve) Slow Opening Valve "Throttling Valve" (Gate Valve) oiler ontrols or these reasons, recommends a dual valve blow-down system for each control. Proper low-down Procedure: (Using dual valve system). With water in the boiler at its normal level, open Positive Shut-off all Valve. 2. Open Throttling Gate Valve slowly until drain piping heats up and then open fully. Observe that the water level starts falling in the gauge glass.. lose Throttling Gate Valve after verifying that the pump contacts have closed and the burner contacts have opened thus shutting down the boiler. Note: If this does not happen, immediately close all valves, turn off burner and correct the problem. 4. lose Positive Shut-off all Valve. 5. Observe that the water level returns to its normal level before leaving site. Piping must be pitched to drain with no restrictions or reduction in pipe size 49

24 L ow Water ut-offs Mech a n i c a l ombination Low Water ut-off/pump ontro l l e rs for Steam oilers Series 9 Low Water ut-off/pump ontrollers or commercial and industrial low or high pressure steam boilers Maintains consistent water level regardless of pressure or boilers of any steaming capacity No. 5 Switch included Magnetic repulsion eliminates need for bellows Optional features Manual reset 7 switch (5ohm proportional control signal) to maintain constant boiler water level " connections Maximum pressure 50 psi (0.5 kg/cm 2 ) SRIS 9 lectrical Ratings 45 V at 20 or 240 V G H (256) (47) 5 9 (42) 4 5 (.5) (225) (27) O rdering Info r m a t i o n ombination low water cut-off/ 5.0 (5.9) pump controller w/no. 5 switch 9 - M w/manual reset 5.0 (5.9) w/no. 7 switch 5.5 (6.0) M W/manual reset 5.5 (6.0) 50

25 L ow Water ut-offs Mech a n i c a l ombination Low Water ut-off/pump ontro l l e rs for Steam oilers Series 9 Low Water ut-off/pump ontrollers or commercial and industrial low or high pressure steam boilers Maintains consistent water level regardless of pressure Water column with integral tappings for gauge glass and tri-cock installations or boilers of any steaming capacity No. 5 Switch included Magnetic repulsion eliminates need for bellows Optional features Manual reset 7 switch (5ohm proportional control signal) to maintain constant boiler water level " connections Maximum pressure 50 psi (0.5 kg/cm 2 ) lectrical Ratings 45 V at 20 or 240 V SRIS 9 O rdering Info r m a t i o n ombination low water cut-off/ pump controller w/no. 5 switch 52.5 (2.8) w/alternate tappings 52.5 (2.8) w/no. 7 switch 52.5 (2.8) M w/manual reset 52.5 (2.8) M w/manual reset 52.5 (2.8) w/alternate tappings 52.5 (2.8) M w/manual reset 52.5 (2.8) w/no. 7 switch 52.5 (2.8) w/alternate tappings 52.5 (2.8) w/no. 7 switch 52.5 (2.8) 9 - M w/manual reset 52.5 (2.8) w/no. 7 switch 52.5 (2.8) 9-7 M w/manual reset 52.5 (2.8) M w/manual reset 52.5 (2.8) 9 - G w/alternate tappings 52.5 (2.8) Model G H J K G 4 Model L M N P Q R (24) 0 6 (274) (0) (7) 9- (292) 0 6 (274) (0) 2 4 (57) (24) 0 6 (274) (0) (7) 9- (292) 0 6 (274) (0) 2 4 (57) 9-G (292) 0 6 (274) (0) 2 4 (57) Model S T U V W X (7.4) 7 (445) 20 (52) (89) (89) 6 (52) (7.4) 7 (445) 20 (52) (89) (89) 6 (52) (7.4) 7 (445) 20 (52) (89) (89) 6 (52) (7.4) 7 (445) 20 (52) (89) (89) 6 (52) 9-G 6 4 (7.4) 7 (445) 20 (52) (89) (89) 6 (52) 5

26 L ow Water ut-offs Mech a n i c a l ombination Low Water ut-off/pump ontro l l e rs for Steam oilers Series 94 Low Water ut-off/pump ontrollers or commercial and industrial low or high pressure steam boilers Maintains consistent water level regardless of pressure or boilers of any steaming capacity No. 5 Switch included Magnetic repulsion eliminates need for bellows Optional features Manual reset 7 switch (5ohm proportional control signal) to maintain constant boiler water level SPT threads 4" connections Maximum pressure 250 psi (7.6 kg/cm 2 ) Ten bolt flange SRIS 94 lectrical Ratings 45 V at 20 or 240 V O rdering Info r m a t i o n ombination low water cut-off/ 52.5 (2.8) pump controller w/no. 5 switch w/alternate tappings 50. (22.8) 94 - M w/manual reset 50. (22.8) M w/no. 7 switch 52.5 (2.8) 94 - M w/manual reset 52.5 (2.8) w/no. 7 switch 52.0 (2.6) Model 94 6 (52) 7 (78) (268) 8 6 (478) 94-6 (52) 7 (78) (268) 8 6 (478) Model G H (49) 4 6 (9) 8 4 (222) ( ) (49) 4 6 (9) 8 4 (222) ( ) Model J K L M N (5) 4 4 (5) (52) 4 (2)

27 L ow Water ut-offs Mech a n i c a l ombination Low Water ut-off/pump ontro l l e rs for Steam oilers Series 94 Low Water ut-off/pump ontrollers or commercial, and industrial low or high pressure steam boilers Maintains consistent water level regardless of pressure or boilers of any steaming capacity Water column with integral tappings for gauge glass and tri-cock installations No. 5 Switch included Magnetic repulsion eliminates need for bellows Optional features Manual reset 7 switch proportional 0-5 ohm control to maintain constant boiler water level 4" connections Maximum pressure 250 psi (7.6 kg/cm 2 ) Ten bolt flange lectrical Ratings 45 V at 20 or 240 V Model G H J K SRIS 94 O rdering Info r m a t i o n ombination low water cut-off/ 72.0 (2.7) pump controller w/series 5 switch w/alternate tappings 72.0 (2.7) w/series 7 switch 72.0 (2.7) 94 - M w/manual reset 72.0 (2.7) w/series 7 switch 72.0 (2.7) 94-7 M w/manual reset 72.0 (2.7) w/alternate tappings 72.0 ( Y 4 4 Model L M N P Q R S (295) 6 4 (7.4) 6 (2) 2 6 (7) 4 (2) 2 8 (60) (27) 6 4 (7.4) 6 (2) 2 6 (7) 4 (2) 2 8 (60) (27) 6 4 (7.4) 6 (2) 2 6 (7) 4 (2) 2 8 (60) Model T U V W X Y (48) 20 (52) (76) (76) 6 (52) 0 6 (274) (48) 20 (52) (76) (76) 6 (52) 0 6 (274) (48) 20 (52) (76) (76) 6 (52) 0 6 (274) 5

28 Water eeders lectric Series W Uni-Match lectric Water eeders or low pressure steam boilers with cold water feed Slide switch allows the timing cycle to be matched to that of the boiler size and operation lectronic operation provides consistent, accurate cycleto-cycle repeatability Universal design simplifies selection and reduces stock an be used with mechanical or electronic low water cut-off controls Manual feed button Includes 8 thread x " (mm) tubing adapters for quick installation with " (mm) copper tubing asy to clean strainer Maximum water pressure 50 psi (0.5 kg/cm 2 ) Maximum boiler pressure 5 psi ( kg/cm 2 ) Maximum water temperature 20 (49 ) Maximum ambient temperature 00 (8 ) Maximum power consumption (during water feed only) 5 V at 24 V 20 V at 20 V (50 or 60 Hz) U n i - M a t c h G H J K (7) 6 4 (59) (24) 4 4 (08) 8 7 (9) 6 (78) 8 (26) 5 6 (48) O rdering Info r m a t i o n W U lectric Water eeder, 24V 2.8 (.) W U lectric Water eeder, 20V 2.8 (.) 54

29 Water eeders lectric Series 0- lectric Water eeders or low pressure steam boilers with cold water feed liminates necessity to manually add water to the boiler an be used with mechanical or electronic low water cut-off controls Quick-change replaceable cartridge valve and strainer Manual feed button Model 0- features a 20 V solenoid Model features a 24 V solenoid and a separate 50V transformer Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum boiler pressure 25 psi (.8 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum power consumption 40 V at 24 V 40 V at 20 V Series 0- l ow ata Pressure ifferential psi (kg/cm 2 ) low Rate gpm (lpm) 5 (. 4 ). 4 ( 5. ) 0 (. 7 ). 7 ( 6. 4 ) 20 (. 4 ) 2. ( 7. 9 ) 40 ( 2. 8 ) 2. 9 (. 0 ) 60 ( 4. 2 ). 4 ( 2. 9 ) 80 ( 5. 6 ) 4. 0 ( 5. ) G H 4 6 (0) (75) 5 8 (0) (92) 5 6 (76) O rdering Info r m a t i o n lectric water feeder, 20V 2. 8 (. ) 0-24 V lectric water feeder, 24V 2. 8 (. ) 55

30 Water eeders Mech a n i c a l Series 47/47-2 M e chanical Water eeders / L ow Water ut-offs or steam and hot water boilers with cold water feed ontinuous maintenance of minimum safe water level, independent of electrical service Proportional feed action Quick hook-up fittings provided Quick-change replaceable cartridge valve and strainer Optional features No. 2 switch Manual reset Model 47 can be field upgraded with a No. 2 switch to add low water cut-off function Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum boiler pressure 25 psi (.8 kg/cm 2 ) Series 47 Series 47-2 lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 20 or 240 V 240 V Hz G 7 8 (02) 5 4 () 7 8 (87) min (67) H J K L M N P (86) (7) 4 (56) max (0) (270) 29 (58.4) (5.7) (76) (5) 56

31 Water eeders Mech a n i c a l Series 47 (continued) Mechanical Water eeders a p a c i t i e s O rdering Info r m a t i o n Mechanical water feeder 27.5 (2.5) w/no. 2 switch 28.5 (.0) M w/manual reset 28.5 (.0) 47 - X w/o quick hook-up fittings 25.0 (.4) 47-2 X w/o quick hook-up fittings 26.0 (.8) 57

32 Water eeders Mech a n i c a l Series 247/247-2 Mechanical Water eeders/low Water ut-offs or steam and hot water boilers with cold water feed ontinuous maintenance of minimum safe water level, independent of electrical service Proportional feed action Quick-change replaceable cartridge valve and strainer Quiet, durable operation Isolated feed valve minimizes lime and scale build-up Optional features No. 2 switch Manual reset Model 247 can be field upgraded with a No. 2 switch to add low water cut-off function Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum vessel pressure 0 psi (2. kg/cm 2 ) Series 247 Series lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 20 or 240 V 240 V Hz G H J K 6 (65) 9 8 (22) 5 8 (0) (7) (67) (86) (5.7) 29 (48.4) 58

33 Water eeders Mech a n i c a l Series 247 (continued) Mechanical Water eeders a p a c i t i e s O rdering Info r m a t i o n Mechanical water feeder 22.0 (0.0) w/no. 2 switch 22.5 (0.2) M w/manual reset 22.5 (0.2) 59

34 Water eeders Mech a n i c a l Series 5/5-2 Mechanical Water eeders/low Water ut-offs or low pressure steam and hot water boilers larger than 5,000 sq. ft. (465m 2 ) capacity with cold water feed Quick-change replaceable cartridge valve and strainer Optional features No. 2 switch Manual reset loat block Proportional feed action Model 5 can be field upgraded with a No. 2 switch to add low water cut-off function Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum vessel pressure 5 psi (2.5 kg/cm 2 ) Series 5 lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 20 or 240 V 240 V Hz 8 (20) 0 8 ( ) 5 4 (46) 4 Series 5-2 a p a c i t i e s O rdering Info r m a t i o n Mechanical water feeder 5. (6.0) w/float block 8.5 (7.5) w/series 2 switch 8. (7.4) M w/manual reset 8. (7.4) w/series 2 switch 5.8 (6.2) M w/manual reset 5.7 (6.2) 60

35 Water eeders Mech a n i c a l Series 5-S/5-S-2 Mechanical Water eeders/low Water ut-offs or high capacity [up to 5,000 sq. ft. (250m 2 )] low pressure steam and hot water boilers with cold water feed Optional features No. 2 switch Manual reset loat block Proportional feed action Maximum water supply pressure 00 psi (7 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum vessel pressure 5 psi (2.5 kg/cm 2 ) Series 5-S lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 20 or 240 V 240 V Hz 8 8 (20) 0 8 ( ) 5 4 (46) Series 5-S-2 4 a p a c i t i e s O rdering Info r m a t i o n 5-S 5600 Mechanical water feeder 6.5 (6.6) 5-S S w/no. 2 switch 7. (6.9) 5-S-2-M S-2 w/manual reset 7. (6.9) 5-S S w/float block 4.8 (9.0) 5-S S w/no. 2 switch 4.8 (9.0) 5-S-2-M S-2 w/manual reset 4.7 (9.8) 6

36 Water eeders Mechanical Series 5/5-2 Mechanical Water eeders/low Water ut-offs or low pressure steam and hot water boilers larger than 5,000 sq. ft. (465m 2 ) with hot or cold water feed Optional features No. 2 switch Manual reset loat block LOSING LVL oiler ontrols Proportional feed action Model 5 can be field upgraded with a No. 2 switch to add low water cut-off function Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum vessel pressure 75 psi (5. kg/cm 2 ) Series 5 lectrical Ratings Motor Switch Rating (mperes) Voltage ull Load Locked Rotor Pilot uty 20 V V at 20 or 240 V 240 V Hz LOSING LVL Series (206) 0 8 (264) 5 4 (46) 4 apacities Number Number escription lbs. (kg) Mechanical water feeder 8.0 (7.2) w/float block 42.0 (9.0) w/no. 2 switch 42.0 (9.0) 5--2-M w/no. 2 switch & manual reset 42.0 (9.0) w/no. 2 switch 8.5 (7.5) 5-2-M w/manual reset 8.5 (7.5) R ISHRG gpm (kg/hr.) lbs./hr. 20 (456) 0, (4082) (629) (75) (2722) (2268) (84) (6) (907) (454) 9,000 8,000 7,000 6,000 5,000 4,000,000 2,000,000 Maximum apacity apacity at Switch ut-off IRNTIL PRSSUR IN POUNS PR SQ. IN. (Water pressure less boiler pressure) STM Sq.t. 40,000 6,000 2,000 28,000 24,000 20,000 6,000 2,000 8,000 4,000 (0) 0 0 psi (kg/cm 2 ) (0) (.7) (.4) (2.) (2.8) (.5) (4.2) (4.9) (5.6) (6.) (7.0) OILR hp (Kilowatts) 290 (284) 26 (2559) 22 (2274) 20 (990) 74 (706) 45 (42) 6 (7) 87 (85) 58 (569) 29 (284) 0 62

37 Make-Up Water eeders In boiler feed systems with higher pressures, a make-up feeder is usually provided on the condensate receiver. It adds water to the receiver when necessary so there is always an adequate supply for boiler demand. ITT Make-up feeders provide large feeding capacity. Unless otherwise stated, valves and seats are of stainless steel and protected by a large integral strainer. Positive alignment of the valve is assured by cam & roller, straight thrust action. These feeders can be used for many other liquid control applications such as: Pharmaceutical Laboratory Industrial istillation equipment Receiver tanks vaporative coolers Humidifiers quariums Steam baths Wet and dry hygrometers oiler ontrols Water eeding apacity lbs./hr. (kg/hr.) Model ity Water Supply Pressure with /4" Pipe and No Tank Pressure, 0 psi (kg/cm 2 ) Number 0 (.7) 20 (.4) 0 (2.) 40 (2.8) 50 (.5) 60 (4.) 70 (4.8) 80 (5.5) 90 (6.2) (406) 4500 (204) 5600 (2540) 6550 (297) 7400 (57) 850 (697) 8800 (992) 9400 (4264) 0200 (4627) 2 & (860) 6000 (2722) 7500 (402) 8600 (90) 9600 (455) 0500 (476) 00 (526) 2000 (544) 200 (5988) (454) 500 (680) 800 (86) 200 (95) 2400 (089) 2600 (79) 2800 (270) 000 (6) 00 (497) (907) 000 (6) 700 (678) 400 (850) 4800 (277) 85-S 000 (6) 4000 (84) 5000 (2268) 6200 (282) 55-S 2500 (4) 600 (6) 4500 (204) 5200 (259) 5800 (26) 6500 (2948) 7000 (75) 7600 (447) 8800 (992) 6

38 Water eeders Make-Up Series 25- Make-Up Water eeder or boiler receiver tanks loat operated Proportional feed action oiler ontrols Soft seat provides positive seal Seal between float chamber and valve chamber is not a positive seal Maximum water supply pressure 00 psi (7 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum vessel pressure 5 psi (2.5 kg/cm 2 ) Series 25- G H J G H J 6 (2) () 8 8 (206) (2.7) 0 8 (264) Make-up water feeder 7.5 (7) w/float block 4.8 (9) apacities R ISHRG (kg/hr.) lbs./hr. (4990),000 gpm (lpm) OILR hp (Kilowatts) 22 (8.27) 9 (27) (456) 0, (75.70) 290 (284) (4082) 9,000 8 (68.) 26 (2559) (629) (75) (2722) 8,000 7,000 6,000 Maximum apacity 6 (60.56) 4 (52.99) 2 (45.42) 22 (2274) 20 (990) 74 (706) (2268) 5,000 0 (7.85) 45 (42) (84) 4,000 8 (0.28) 6 (7) (6),000 6 (22.7) 87 (85) (907) 2,000 4 (5.4) 58 (569) (454),000 2 (7.57) 29 (284) (0) 0 0 psi (kg/cm 2 ) (0) (.7) (.4) (2.) (2.8) (.5) (4.2) (4.9) (5.6) (6.) (7.0) (0) 0 (0) WTR SUPPLY PRSSUR IN LS. PR SQ. IN. 64

39 Water eeders Make-Up Series 2 Make-Up Water eeder or boiler receiver tanks irect mounting eliminates need for equalizing connections Proportional feed action Mounting lange six 7 6" (.mm) bolt holes on a 5 4" (46mm) bolt circle Soft seat provides positive seal Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum vessel pressure 5 psi (2.5 kg/cm 2 ) Series 2 G H 8 (26) 5 6 (84) (4) 8 6 (224) 4 4 (2) 6 4 (59) (86) H G oiler ontrols Series 22 Make-Up Water eeder or boiler receiver tanks irect mounting eliminates need for equalizing connections Proportional feed action Mounting lange six 7 " (.5mm) bolt holes on a 8 " (26mm) bolt circle Soft seat provides positive seal Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum vessel pressure 5 psi (2.5 kg/cm 2 ) apacities (kg/hr.) lbs./hr. PITY URV 6, , ,000 28, ,000 24, , , , , , , ,000 8, ,000 4, psi (kg/cm 2 ) (0) (0.7)(.4)(2.) (2.8)(.5)(4.2)(4.9) (5.6)(6.)(7.0)(7.7) (8.4)(9.)(9.8)(0.5) (7258) (6804) (650) (5897) (544) (4990) (456) (4082) (629) (75) (2722) (2268) (84) (6) (907) (454) (0) WTR SUPPLY PRSSUR IN LS. PR SQ. IN. gpm (lpm) OILR (2.2) (.55) (05.98) (98.4) (90.84) (8.27) (75.70) (68.) (60.56) (52.99) (45.42) (7.85) (0.28) (22.7) (5.4) (7.57) (0) hp (Kilowatts) 464 (4549) 45 (4264) 406 (980) 77 (696) 48 (4) 9 (27) 290 (284) 26 (2559) 22 (2274) 20 (990) 74 (706) 45 (42) 6 (7) 87 (85) 58 (569) 29 (284) 0 (0) Series 22 G H 8 (26) 4 6 (84) (4) 8 6 (224) 4 4 (2) 6 4 (59) 4 (20) 9 (24) Make-up water feeder 5. (6.9) Make-up water feeder 2. (9.7) H G 65

40 Water eeders Make-Up Series 847 Make-Up Water eeder or receiver tanks in commercial or industrial applications Mounts directly on the receiver, eliminating need for equalizing connections Quick-change replaceable cartridge valve and strainer WTR LIN oiler ontrols Proportional feed action Mounting lange six 7 6" (.mm) bolt holes on a 5 4" (46mm) bolt circle Optional features No. 2 switch lternate valve orientation Maximum supply pressure 50 psi (0.5 kg/cm 2 ) Series 847 Maximum inlet water temperature 20 (49 ) Maximum receiver pressure 25 psi (.8 kg/cm 2 ) (86) (25) (7) 9 6 (90) 7 6 (87) Make-up water feeder (5.0) w/alternate valve orientation 2 (5.4) w/no. 2 switch 2 (5.4) apacities gpm (kg/hr.) lbs./hr. STM Sq. t. OILR tu/hr. (K-alories/Hr.) OILR hp (Kilowatts) 8 (84) 4,000 6,000 4,000,000 (5,800) 6 (7) (6) (907) (454),000 2,000,000 Maximum apacity apacity at Switch ut-off 2,000 8,000 4,000,000,000 (,900) 2,000,000 (7,900),000,000 (4,000) 87 (85) 58 (569) 29 (284) 0 (0) 0 psi (kg/cm 2 ) (0) (.7) (.4) (2.) (2.8) (.5) (4.2) (4.9) (5.6) (6.) (7.0) IRNTIL PRSSUR IN POUNS PR SQ. IN. (Water pressure less boiler pressure) 66

41 Water eeders Make-Up Series 85 Make-Up Water eeder or receiver tanks in commercial or industrial applications Mounts directly on the receiver, eliminating need for equalizing connections Quick-change replaceable cartridge valve and strainer Proportional feed action Mounting lange six 7 6" (.mm) bolt holes on a 5 4" (46mm) bolt circle Maximum water supply pressure 50 psi (0.5 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum receiver pressure 5 psi (2.5 kg/cm 2 ) Model 85-S Make-Up Water eeder xtended float and rod assembly Wider operating range Maximum water supply pressure 00 psi (7 kg/cm 2 ) Maximum inlet water temperature 20 (49 ) Maximum receiver pressure 5 psi (2.5 kg/cm 2 ) Make-up water feeder 4 (6.4) 85-S w/extended float & rod assy. 6 (7.) Series 85 Model 85-S WTR LIN 4 (298) (25) (7) 9 6 (90) (87) WTR LIN 2 4 (24) (25) 6 (8) 9 6 (90) (87) oiler ontrols apacities Model 85 apacities Model 85-S R ISHRG gpm (kg/hr.) lbs./hr. 20 (456) 0, (4082) (629) (75) (2722) (2268) (84) (6) (907) (454) 9,000 8,000 7,000 6,000 5,000 4,000,000 2,000,000 Maximum apacity apacity at Switch ut-off IRNTIL PRSSUR IN POUNS PR SQ. IN. (Water pressure less boiler pressure) STM Sq.t. 40,000 6,000 2,000 28,000 24,000 20,000 6,000 2,000 8,000 4,000 (0) 0 0 psi (kg/cm 2 ) (0) (.7) (.4) (2.) (2.8) (.5) (4.2) (4.9) (5.6) (6.) (7.0) OILR hp (Kilowatts) 290 (284) 26 (2559) 22 (2274) 20 (990) 74 (706) 45 (42) 6 (7) 87 (85) 58 (569) 29 (284) 0 R ISHRG gpm (kg/hr.) lbs./hr. 20 (456) 0, (4082) (629) (75) (2722) (2268) (84) (6) (907) (454) 9,000 8,000 7,000 6,000 5,000 4,000,000 2,000,000 Maximum apacity apacity at Switch ut-off IRNTIL PRSSUR IN POUNS PR SQ. IN. (Water pressure less boiler pressure) STM Sq.t. 40,000 6,000 2,000 28,000 24,000 20,000 6,000 2,000 8,000 4,000 (0) 0 0 psi (kg/cm 2 ) (0) (.7) (.4) (2.) (2.8) (.5) (4.2) (4.9) (5.6) (6.) (7.0) OILR hp (Kilowatts) 290 (284) 26 (2559) 22 (2274) 20 (990) 74 (706) 45 (42) 6 (7) 87 (85) 58 (569) 29 (284) 0 67