Hubbell Water Heaters -Model F High Capacity Instantaneous Steam Fired Water Heater

DOWNLOADS
The Hubbell F Model is a compact, highly efficient, packaged instantaneous steam fired water heater perfect for new or replacement water heating requirements. This highly efficient Hubbell heater requires no large storage tank, is easily installed and requires minimal floor space.

Category: indirect-fired water heaters | instantaneous water heaters | water heaters...

MasterFormat: Plumbing Equipment | Domestic Water Heat Exchangers



Hubbell Water Heaters
45 Seymour Street
P.O. Box 288
Stratford, CT 06615
Tel: (203) 378-2659
Fax: (203) 378-3593

info@hubbellheaters.com

http://www.hubbellheaters.com/

Find a rep/distributor

Request More Info

DOWNLOADS

Related Products

Overview


Model F High Capacity Instantaneous Steam Fired Water Heater

The Hubbell F Model is a compact, highly efficient, packaged instantaneous steam fired water heater perfect for new or replacement water heating requirements. This highly efficient Hubbell heater requires no large storage tank, is easily installed and requires minimal floor space. Furthermore, the Hubbell F model utilizes a helical coil as its source for heat transfer and is up to 40% more efficient than traditional "U" tube heaters. When you specify and install a Hubbell steam fired water heater, you will have confidence in knowing the owner will be provided with a long lasting, trouble-free source for hot water.


Compact High Capacity Design
  • On demand water heater eliminates the need for a large storage tank
  • Advanced design requires only 7 Sq.Ft. of floor space
  • All steam controls are located within the steel frame
Packaged System
  • Water heater is factory assembled on an all welded steel mounting frame to save time and money during installation
  • All steam operating controls are factory selected, sized and piped
  • Ready for water and steam service connections
Heavy Duty Construction
  • Heat exchanger is ASME Section VIII stamped and registered with the National Board
  • Factory fitted protective shroud covers the heat exchanger for improved safety
High Efficiency
  • Helical coil design is up to 40% more efficient than traditional "U" tube coils
  • No standby heat loss
  • Feed forward blending valve controls hot water +/- 4°F
Spiral Design Heat Exchanger

The heart of the Hubbell Instantaneous Steam fired water heater is a compact, highly efficient and versatile spiral tube heating coil which offers many advantages over a conventional "U" tube design including:

  • 100% counterflow for heat-transfer rates up to 40% greater than equivalent stright tube exchangers.
  • Pressure drop is minimized.
  • Bourdon tube configuration that allows entire assembly to expand and contract without localized stresses. Failure from thermal shock or mechanical process is rare.
  • No baffles.
  • ASME Section VIII UM standard.
  • Variety of materials available to suit specific applications.
  • Compact design for easy maintenance.
  • Parts in stock to prevent long and expensive down times.
Blending Valve

The temperature regulating device in a Hubbell Instantenous Steam water heater is a "feed forward" blending valve design to assure safe and accurate temperature control of the heated water for an entire range of flow capacities. A purely mechanical operation, the Hubbell blending valve will provide +/- 4°F temperature control without the use of thermostatic sensing devices.
How the blending valve works

  1. The proportioning valve plug is constructed from Hastelloy C and is regulated by movement of the neoprene diaphragm, induced by pressure differentials in the sensing head.
  2. A sensing line "loads" the top portion of the diaphragm with supply line cold water pressure while blended water outlet pressure is being sensed below.
  3. Flow demand imparts a pressure imbalance above (+) and below (-) the diaphragm resulting in movement of the diaphragm and proportioning plug.
  4. The movement aligns ports in the plug with supply ports in the valve body, introducing the correct proportion of hot and cold water.
  5. This action automatically generates blended hot water through all rated flow capacities at the chosen preset temperature (+/- 4°F).
The integral fail-safe system permits steam travel in the event of plug restriction or parts failure, opening an auxiliary cold water port. Cold water flooding yields cooler water, or when parts fail, no water at all.
Temperature is easily adjusted by side-to-side movement of the control rod on the valve body. Stabilization adjustments are made during initial start-up by rotation of the control rod. All settings are locked in with a locking ring and set screw.

  1. Cold Water enters via the inlet piping and branches off to supply both the cold port on the blending valve and the heat exchanger.
  2. The cold water passes throught the coils in the heat exchanger and is heated by the surrounding steam in the shell.
  3. Hot water exits the heat exchanger and enters the hot port on the blending valve.
  4. The plug assembly in the blending valve opens the hot and cold ports to provide the precise amount of hot and cold water in order to achieve the desired output temperature water +/- 4°F.
  5. The heated water exits the unit at the base of the blending valve.

Note:
Domestic water heating applications with steam supply pressure greater than 15 psi require a steam pressure reducing valve as well as a separate steam pressure relief valve to be installed in the incoming steam supply line prior to the heat exchanger shell.
Hubbell can supply the pressure reducing valve as an option. Steam pressure relief valve supplied by others.


General Configuration
  • The factory-supplied, all welded, heavy duty steel stand is high enough to accomodate the condensate piping and traps, therefore no special field-erected stand is required.
  • Hubbell is committed to increasing operating efficiencies and improving safety features. Therefore, each water heater is supplied with a factory jacket and insulated heat exchanger. Without this feature, the heat exchanger (with a surface temperature in excess of 200°F) acts as a radiator and adds to heat loss inefficiencies and is a severe safety hazard for personnel who may inadvertently come in contact wit the surface of the exchanger.
  • The Hubbell water heater will fit through most doorways, for simple and time saving installation.
  • With only 7 square feet of floor space required for installation, compared to conventional storage water heaters the Hubbell water heater will require significantly less mechanical room space.
  • Traps and strainers are factory piped, assembled and tested to save time and money during installation and start-up.
  • Built-in relief valve (water side) set at 165 psi to signal over-pressure condition.

F Model Optional Equipment
Heating Coil
  • Double wall tubing with leak detection port (F30 and F60 sizes only)
  • Tubing materials available: Standard is copper, Optional materials are Admiralty, 90/10 Copper-Nickel, Stainless Steel (Type 304 or 316)
    Note:Tubing materials other than copper will exhibit lower maximum capacities
Steam Shell
  • Shell Construction: Standard is Cast Iron, Optional materials are Cast Steel, Cast Bronze, 90/10 Copper-Nickel, Stainless Steel (Type 304 or 316)
    Note:Cast steel shell ratings: F30: 225 psi @ 350°F F60 & F90: 225 psi @ 350°F F120: 225 psi @ 350°F
Operating Controls
  • In order to limit the steam pressure in the heat exchanger shell a steam pressure reducing valve is factory supplied and shipped loose for in-the-field installlation
  • Single solenoid safety system opens the sensing line to the blending valve in order to limit the hot water output in the event of an over temperature condition. Requires 5 Amp, 120 Volt service.
  • Double solenoid safety system opens the sensing line to the blending valve as well as closing the steam supply to heat exchanger in the event of an over temperature condition. Requires 5 Amp, 120 Volt service.
  • All steam components (traps, strainers) shall be Cast Steel construction
  • If water hardness exceeds 120 ppm, scale build-up can reduce efficiency. A factory packaged Klean-Koil Kit™ with built-in connections will allow for quick and easy in-place cleaning of the coil to remove these deposits thereby avoiding long periods of down time and expensive maintenance costs.
  • Optional temperature control to +/- 3°F of set temperature.
  • All 316 Stainless Steel blending valve and 316SS water piping
Recirculation Packages
  • Fixed temperature 3 way diverting valve, one (1) 1" globe valve, and two (2) 1" check valves are shipped loose for in-the-field installation.
  • Same as previous option except with 3-way diverting valve that has an adjustable range.
  • 3 way diverting valve is factory fitted and piped to the water heater.

Please note: optional equipment may impact overall dimensions and weight. Please request submittal drawing from factory.


See More


Specifications

Model F Water Heater Specifications
Orientation: Vertical
Installation: Floor Mounted
Space Requirement: 7 Sq.Ft.
Certification: ASME Section VIII
Waterside WP: 160 psi (max)
Shell Material: Ductile Iron
Shell Rating:
F30 & F60: 75 psi @ 350°F
F90 & F120: 50 psi @ 350°F
Coil Rating:
F30 & F60: 200 psi @ 400°F
F90 & F120: 200 psi @ 400°F
Coil Material: Copper Tubing SB75
Coil Size:
F30/F60/F90: 0.5" O.D. 18 BWG
F120: 0.625" O.D. 18 BWG
Ideal Water Temperature
Operating Range:
105-185°F
Main Condensate Trap: F&T Type
Drip Trap: Thermostatic Type
Steam Pressure Gauge: 30" Hg - 30 psig
Water Gauge:
70-270°F, 0-200 psi
20-120°C, 0-1400 kPa
Frame: Steel Angle Iron
Protective Shroud: 20 GA Galvanized Steel
Insulation: 2 Lb. Density Fiberglass
Strainers: Y Cast Iron 20 MESH Screen
Warranty (Standard):
Shell: 5 year
Coil: 5 year
Shipping Weight (Lbs.):
F30: 320
F60: 405
F90: 450
F120: 615
Piping:
Water: Brass
Steam: Black Iron
Outline Dimensions
Model F Dimensional Data
F15F30F45F60F75F90F105F120
Height "A"49"49"52"52"67"67"68"68"
Width "B"26"26"26"26"26"26"26"26"
Length "C"39"39"39"39"39"39"39"39"
Cold Water Inlet (Male NPT)1 1/2"1 1/2"1 1/2"1 1/2"2 1/2"2 1/2"2 1/2"2 1/2"
Hot Water Outlet (Female NPT)2"2"2"2"2 1/2"2 1/2"2 1/2"2 1/2"
Steam Inlet (Female NPT)3"3"4"4"4" FLG4" FLG4" FLG4" FLG
Main Condensate (Trap Size)1 1/4"1 1/4"2"2"1 1/2"1 1/2"1 1/2"1 1/2"
Drip Trap Size1/2"1/2"1/2"1/2"1/2"1/2"1/2"1/2"
Steam
Consumption
Formula
Steam Pressure (psi)02510152025304050
Latent Heat970966960953946939933929920912
Recovery Rate Chart

Recovery Rate Chart
Recovery Rates in GPM

Recovery Rate Chart
Recovery Rates in GPM
For domestic water heating applications optimum performance (+/- 4°F) is achieved when the steam pressure in the heat exchanger shell is 15 psi or less. Therefore, if the steam supply pressure is greater than 15 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 15 psi.For domestic water heating applications optimum performance (+/- 4°F) is achieved when the steam pressure in the heat exchanger shell is 15 psi or less. Therefore, if the steam supply pressure is greater than 15 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 15 psi.For domestic water heating applications optimum performance (+/- 4°F) is achieved when the steam pressure in the heat exchanger shell is 15 psi or less. Therefore, if the steam supply pressure is greater than 15 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 15 psi.For domestic water heating applications optimum performance (+/- 4°F) is achieved when the steam pressure in the heat exchanger shell is 15 psi or less. Therefore, if the steam supply pressure is greater than 15 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 15 psi.For typical process or general applications with less stringent temperature control requirements (+/- 8°F) up to 35 psi steam pressure in the heat exchanger shell may be utilized. If incoming steam supply pressure is greater than 35 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 35 psi.For typical process or general applications with less stringent temperature control requirements (+/- 8°F) up to 35 psi steam pressure in the heat exchanger shell may be utilized. If incoming steam supply pressure is greater than 35 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 35 psi.For typical process or general applications with less stringent temperature control requirements (+/- 8°F) up to 35 psi steam pressure in the heat exchanger shell may be utilized. If incoming steam supply pressure is greater than 35 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 35 psi.For typical process or general applications with less stringent temperature control requirements (+/- 8°F) up to 35 psi steam pressure in the heat exchanger shell may be utilized. If incoming steam supply pressure is greater than 35 psi a pressure reducing valve is used to reduce the steam pressure in the heat exchanger shell to a maximum of 35 psi.

Recovery Rate Chart
Recovery Rates in GPM

Recovery Rate Chart
Recovery Rates in GPM
Supplied domestic water pressure needs to exceed steam pressureSupplied domestic water pressure needs to exceed steam pressureSupplied domestic water pressure needs to exceed steam pressureSupplied domestic water pressure needs to exceed steam pressureSupplied domestic water pressure needs to exceed steam pressureSupplied domestic water pressure needs to exceed steam pressureSupplied domestic water pressure needs to exceed steam pressureSupplied domestic water pressure needs to exceed steam pressure
Base Model°F Temp. In/OutSteam Supply Pressure (psi)Steam Supply Pressure (psi)Steam Supply Pressure (psi)Steam Supply Pressure (psi)Steam Supply Pressure (psi)Steam Supply Pressure (psi)Steam Supply Pressure (psi)Steam Supply Pressure (psi)
Base Model°F Temp. In/Out25101520253035
F15
F1540-1201415151512151616
F1540-1401011121411141515
F1540-16089101110121313
F1540-180789109111212
F1560-1201515151514181919
F1560-1401213141513161717
F1560-18089101110121313
F30
F3025101520253035
F3040-1202730303024303333
F3040-1402022242722283030
F3040-1601618202219242626
F3040-1801517192117222323
F3060-1203030303028353838
F3060-1402325273025313434
F3060-1802122232419242626
F45
F4525101520253035
F4540-1204145454536455050
F4540-1403338414433424545
F4540-1602631333529363939
F4540-1801617192126323535
F4560-1204545454543545858
F4560-1404042444538475151
F4560-1802225293329363939
F60
F6025101520253035
F6040-1205460606048606666
F6040-1404654586044566060
F6040-1603441444638485252
F6040-1802123252834434646
F6060-1206060606057737878
F6060-1405759606050626868
F6060-1802933394438485252
F75
F7525101520253035
F7540-1206875757560758484
F7540-1405868737555707575
F7540-1604351555848606565
F7540-1802629313543535858
F7560-1207575757572909797
F7560-1407174757563788585
F7560-1803641495548606565
F90
F9025101520253035
F9040-1208190909072909999
F9040-1406981879066849090
F9040-1605161666957727878
F9040-1803134374251646969
F9060-1209090909086111118118
F9060-140858890907593102102
F9060-1804349586657727878
F105
F10525101520253035
F10540-1209510510510584105118118
F10540-14081951021057798105105
F10540-1606072778167849191
F10540-1803740444960748181
F10560-120105105105105101126136136
F10560-14010010310510588109119119
F10560-1805158687767849191
F120
F12025101520253035
F12040-12010812012012096120132132
F12040-1409210811612088112120120
F12040-160688288927696104104
F12040-1804246505668859292
F12060-120120120120120115149158158
F12060-140114118120120100124136136
F12060-180586678887696104104
Sweetsstakes