Electric Low Capacity

Light Duty Commercial

Electric cement lined water heater Model E
  • Light Duty
  • 6 - 120 Gallon Capacity
  • Up to 12KW - 1 Phase or 3 Phase

Ceiling Hung Horizontal

Electric horizontal ceiling hung water heater Model HE/HSE
  • Horizontal, Ceiling Hung
  • 20 or 30 Gallon Capacity
  • Up to 20 KW - 1 or 3 Phase

Heat Pump
Hybrid

Hybrid electric heat pump water heater Model PBX
  • Heat Pump Water Heater
  • 40 - 120 Gallon Capacity
  • 1 or 3 Phase

Point-Of-Use Storage

Point-of-use electric water heater Model CE110
  • Point-of-Use
  • 1 Gallon Capacity
  • 1000 or 450 Watts - 1 Phase

Point-Of-Use Tankless

Electric tankless point-of-use water heater Model R
  • Whole House / Point-of-Use
  • Availabe 3 thru 27 KW - 1 Phase

Electric
Booster

Electric booster water heater Model J
  • Booster Heater
  • Provides 180°F water
  • Up to 88 KW - 1 or 3 Phase

Tankless Electric Booster

Electric tankless booster heater Model JTX
  • Tankless Booster Heater
  • Provides 180°F water
  • 11 to 54 KW - 1 or 3 Phase

Heavy Duty Commercial

Commercial heavy duty electric storage water heater Model SE
  • Heavy Duty
  • 6-120 Gallon Capacity
  • Up to 58 KW - 3 Phase

Tankless Commercial

Electric tankless water heater Model TX
  • Tankless Commercial
  • Highly efficient tankless
  • Up to 54 KW - 1 or 3 Phase

Large ASME
Heater

Large capacity electric storage tank water heater Model SH
  • Large Capacity
  • 80-5000 Gallon Capacity
  • All KW ratings - 1 or 3 Phase
     

Commercial Gas Tankless

Gas tankless water heater Model GX
  • High Efficiency Condensing Burner
  • Integrated Pump
  • 200,000 and 250,000 BTUs

Integrated Tank with Tankless

Condensing gas storage tank water heater Model GXT
  • High Efficiency Condensing Burner
  • Hydrastone Cement
  • 200,000 to 250,000 BTUs

DI / RO Gas
Tankless

DI/RO gas fired tankless water heater Model DGX
  • DI/RO Water Heater
  • High Efficiency Condensing Burner
  • 199,950 and 250,000 BTU

Gas Tankless Booster

Condensing gas tankless booster water heater Model JBX
  • Gas Tankless Booster
  • For Commercial Kitchens
  • 150,000 / 200,000 / 250,000 BTU

Gas Storage
Heater

Condensing gas storage tank water heater Model GXT
  • Non Condensing Burner
  • Hydrastone Cement
  • 200,000 to 250,000 BTUs
   

Large ASME
Steam Heater

Steam fired water heater large capacity Model ST
  • Storage Type
  • 80-5000 Gallon Capacity
  • ASME Stamped

Packaged Semi-Instantaneous

Semi-Instantaneous Steam Fired Water Heater Model STX
  • Semi-Instantaneous
  • Space saving design
  • Provides 10,500 GPH

Point-Of-Use
Steam

Storage tank steam fired water heater Model PS
  • Light Duty
  • 80-120 Gallon Capacity
  • For low demand/recovery

High Capacity Instantaneous

Instantaneous steam fired water heater Model F
  • Instantaneous
  • 7 Sq. Ft. of floorspace
  • Up to 120 GPM
     

Semi-Instantaneous Indirect

Indirect fired semi-instantaneous water heater Hubbell Model BWX
  • Semi-Instantaneous
  • Vertical or Horizontal
  • ASME Stamped

Large ASME
Indirect

Indirect fired storage tank water heater Hubbell Model BW
  • Storage Type
  • Vertical or Horizontal
  • 80-5000 Gallon Capacity

Small Capacity Indirect

Indirect fired storage tank water heater model T Transflow
  • Indirect Fired
  • 30-120 Gallon Capacity
  • Utilizes boiler water

Solar

Solar water heater Model SLN
  • Solar Heater
  • Vertical Storage Type
  • 30-120 Gallon Capacity
       

Storage
Tanks

ASME and None ASME storage vessels Hubbell Model StorageTank
  • ASME & Non ASME designs
  • Hydrastone Cement
  • Vertical or Horizontal
     
       

Circulation (Instantaneous)

Electric circulation heater Hubbell Model CR
  • Circulation (Instantaneous)
  • Heavy Duty Construction
  • 25-1600 KW - 1 or 3 Phase

Explosion
Resistant

Electric hazardous location water heater Model ER
  • Hazardous Location
  • 10-120 Gallon Capacity
  • Up to 58 KW - 1 or 3 Phase

Industrial Process Heater

Electric process industrial water heater Model V
  • Process Systems & Industrial
  • ASME Stamped
  • Up to 88 KW - 1 or 3 Phase

Emergency Shower Tankless

Electric tankless safety shower water heater Model ETX
  • Tankless Emergency Tepid Water
  • NEMA 4 Standard
  • Up to 88 KW - 1 or 3 Phase

RO / DI Heater Compact

DI/RO electric hot water heater Model HD
  • RO/DI Water Heater
  • Point-of-Use Heater
  • Up to 88 KW - 1 or 3 Phase

RO / DI Heater Storage

DI/RO electric hot water heater Model D
  • RO/DI Water Heater
  • 1-120 Gallon Capacity
  • Up to 88 KW - 1 or 3 Phase

Tepid Water for Emergency Fixtures

Electric safety shower water heater Model EMV
  • Emergency Tepid Water
  • Fully packaged system
  • Integrated mixing valve

Fully Integrated Package

Model Packaged Skid
  • Customized to your specifications
  • Full featured system ready for your application

Light Duty
Electric

Electric water heater for shipboard marine use single phase power Model ME
  • Light Duty
  • 6-120 Gallon Capacity
  • Up to 6 KW - 1 Phase

Large ASME
Electric

Electric water heater for shipboard marine use large capacity Model MSH
  • Large Capacity
  • 80-5000 Gallon Capacity
  • All KW ratings - 1 or 3 Phase

Heavy Duty
Electric

Electric water heater for shipboard marine use three phase power Model MSE
  • Vertical
  • 6-120 Gallon Capacity
  • 1 or 3 Phase - Up to 58 KW

Tankless
Electric

Electric tankless water heater for shipboard marine use model MTX
  • Tankless Marine Heater
  • Provides 180°F water
  • 11 to 54 KW - 1 or 3 Phase

Naval

Naval shipboard marine electric water heater Hubbell Model 177
  • MIL Spec Navy Heaters
  • Comforms to MIL-H-965
  • Shock and EMI protection

Fully Integrated Package

Turn-key hot water system
  • Customized to your specifications
  • Full featured system ready for your application
   

Immersion Heating
Elements

Electric immersion tubular style heaters
  • Immersion Electric Heaters
  • Flanged or Screw Plugs Types
  • All KW ratings - 1 or 3 Phase

Heat Transfer
Coils

Heat exchanger and heating coil water heaters
  • Immersion Heat Transfer Coils
  • U tube type
  • Range of Materials
   
       
Electric High Capacity
Gas Fired
Steam Fired
Indirect
Storage
Special Purpose
Marine
Elements & Exchangers
Resource Center
Instantaneous steam fired water heater Model F
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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.


ASME Optional
  • 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

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.
Hubbell Model F Blending Valve

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.

Operational Overview

Model F Operational Overview
  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.

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: Cast 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

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.

Outline Dimensions

Outline Dimensions

Model F Dimensional Data

F15 F30 F45 F60 F75 F90 F105 F120
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" FLG 4" FLG 4" FLG 4" 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 Size 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 1/2"
Steam
Consumption
Formula
Model F Steam Consumption Formula

Steam Pressure (psi) 0 2 5 10 15 20 25 30 40 50
Latent Heat 970 966 960 953 946 939 933 929 920 912

Recovery Rate Chart

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 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.
Supplied domestic water pressure needs to exceed steam pressure
Base Model °F Temp. In/Out Steam Supply Pressure (psi) Steam Supply Pressure (psi)
2 5 10 15 20 25 30 35
F15
40-120 14 15 15 15 12 15 16 16
40-140 10 11 12 14 11 14 15 15
40-160 8 9 10 11 10 12 13 13
40-180 7 8 9 10 9 11 12 12
60-120 15 15 15 15 14 18 19 19
60-140 12 13 14 15 13 16 17 17
60-180 8 9 10 11 10 12 13 13
F30
2 5 10 15 20 25 30 35
40-120 27 30 30 30 24 30 33 33
40-140 20 22 24 27 22 28 30 30
40-160 16 18 20 22 19 24 26 26
40-180 15 17 19 21 17 22 23 23
60-120 30 30 30 30 28 35 38 38
60-140 23 25 27 30 25 31 34 34
60-180 21 22 23 24 19 24 26 26
F45
2 5 10 15 20 25 30 35
40-120 41 45 45 45 36 45 50 50
40-140 33 38 41 44 33 42 45 45
40-160 26 31 33 35 29 36 39 39
40-180 16 17 19 21 26 32 35 35
60-120 45 45 45 45 43 54 58 58
60-140 40 42 44 45 38 47 51 51
60-180 22 25 29 33 29 36 39 39
F60
2 5 10 15 20 25 30 35
40-120 54 60 60 60 48 60 66 66
40-140 46 54 58 60 44 56 60 60
40-160 34 41 44 46 38 48 52 52
40-180 21 23 25 28 34 43 46 46
60-120 60 60 60 60 57 73 78 78
60-140 57 59 60 60 50 62 68 68
60-180 29 33 39 44 38 48 52 52
F75
2 5 10 15 20 25 30 35
40-120 68 75 75 75 60 75 84 84
40-140 58 68 73 75 55 70 75 75
40-160 43 51 55 58 48 60 65 65
40-180 26 29 31 35 43 53 58 58
60-120 75 75 75 75 72 90 97 97
60-140 71 74 75 75 63 78 85 85
60-180 36 41 49 55 48 60 65 65
F90
2 5 10 15 20 25 30 35
40-120 81 90 90 90 72 90 99 99
40-140 69 81 87 90 66 84 90 90
40-160 51 61 66 69 57 72 78 78
40-180 31 34 37 42 51 64 69 69
60-120 90 90 90 90 86 111 118 118
60-140 85 88 90 90 75 93 102 102
60-180 43 49 58 66 57 72 78 78
F105
2 5 10 15 20 25 30 35
40-120 95 105 105 105 84 105 118 118
40-140 81 95 102 105 77 98 105 105
40-160 60 72 77 81 67 84 91 91
40-180 37 40 44 49 60 74 81 81
60-120 105 105 105 105 101 126 136 136
60-140 100 103 105 105 88 109 119 119
60-180 51 58 68 77 67 84 91 91
F120
2 5 10 15 20 25 30 35
40-120 108 120 120 120 96 120 132 132
40-140 92 108 116 120 88 112 120 120
40-160 68 82 88 92 76 96 104 104
40-180 42 46 50 56 68 85 92 92
60-120 120 120 120 120 115 149 158 158
60-140 114 118 120 120 100 124 136 136
60-180 58 66 78 88 76 96 104 104

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.

Model Number Designation F



Step 1
Base Model
Number:

F15
F30
F45
F60
F75
F90
F105
F120


Step 2
Coil:
CS = Copper (Standard)
AD = Admiralty
CN = 90/10 Copper-Nickel
SS = Stainless Steel
Step 3
Shell:
RN = Ductile Iron
SS = Stainless Steel
ST = Cast Steel
CN = Copper-Nickel
CB = Cast Bronze
-
Step 4
Options:
A = Recirculation package (Fixed or Adjustable Range)
C = Single solenoid safety system
D = Double wall heating coil (U-Tube design)
F = Double solenoid safety system
H = Steam pressure reducing valve factory supplied
K = Klean-Koil Kit™ factory supplied for in-place coil cleaning

Example:

F30CSRN-H

An instantaneous steam fired water heater with a F30 base recovery rating, copper tubing heating coil, cast iron heat exchanger shell, with a steam pressure reducing valve factory supplied to limit the steam pressure to 15 psi maximum.

Model F Specific Questions

What do I do if my steam pressure exceeds 15psi?

For domestic potable water you must install a pressure reducing valve in the steam line prior to the Hubbell F model to reduce the steam pressure to 15psi. This provides the optimal conditions for the water heater’s temperature control system, thus providing stable and consistent hot water +/- 4 degrees F. For process systems with a less critical requirement for temperature stability, saturated steam pressure up to 35 psi can be used but the temperature stability will be affected and will result in hot water temperature varying by +/- 8 degrees F.

Can I use superheated steam with my F model?

No. The F model is designed to work with saturated steam.

Can I really replace my storage tank water heater with the F model?

Yes you can. The Hubbell F model water heater is available in 8 different sizes ranging from 15 GPM up to 120 GPM capacities.

How is temperature controlled without a thermostat or steam valve?

Temperature control is achieved through the self contained blending valve, rather than an expensive and maintenance intensive steam control valve and thermostat. Water is overheated in the heat exchanger then is fed to the pressure balanced blending valve where a precise amount of hot and cold water is mixed to provide accurate temperature at the hot water outlet. Setting the temperature is outlined in Section II of the operation & maintenance manual Here.

Why is a spiral wound heat exchanger better than a U-Tube type?

Compared to standard U-tube heat exchangers, a spiral wound heat exchangers provide higher operating efficiency in a smaller footprint making it better suited to demanding hot water applications. The spiral wound heat exchanger consists of a dual manifold multi-tube spiral tube assembly inserted into a shell, where the water and steam are designed for full counter flow heat transfer, resulting in up to a 40% improvement in heat transfer compared to a typical shell and tube heat exchanger. In addition, the spiral wound heat exchanger is more resistant to thermal and pressure shock compared to standard U-tube heat exchangers.

General Questions

Where can I purchase a Hubbell water heater?

There are numerous ways to purchase a Hubbell water heater depending upon the model you desire and your geographic location. The easiest way is to contact Hubbell directly at 800-647-3165 and ask for the sales department where you will be directed to either our local representative or our order entry department for quick and easy ordering.

Where can I purchase replacement parts?

Parts are available for your Hubbell water heater direct from the factory. Please call 800-647-3165 and ask for our parts department. Please have your model and serial number handy.

I don't see the size or feature I need, what do I do?

Hubbell has more than 35 product families available in over 4,000,000 configurations. There are numerous features, configurations and ratings we provide but for practical reasons are are not listed in the sales brochure. If you have a specific requirement and you do not see it in the brochure, please contact a Hubbell Sales Engineer...chances are we have what you need.

What should I know about Legionella disease?

Legionella is the bacteria responsible for Legionnaire’s Disease, an acute bacterial infection of the lower respiratory tract. This bacterium was first identified in 1977 by the Centers for Disease Control as the cause of an outbreak of pneumonia that caused 34 deaths at a 1976 American Legion Convention in Philadelphia. Pontiac Fever is a less severe, non-pneumonia, flu-like disease that is associated with and likely caused by Legionella bacteria. Legionella is a fairly common water bacterium and has been found to exist widely in many surface water sources including lakes, rivers, streams and ponds. It can also be found in ground water sources and some soils. At the levels found in these naturally occurring sources it typically does not pose a threat to public health. When the bacterium enters a domestic water system it can find an ideal host environment of warm water temperatures (105-115°F), stagnant water areas (isolated storage tanks and dead-end piping legs) and ample food sources (sediment, scale, deposits and biofilm). Under these conditions Legionella can rapidly colonize, forming higher concentrations that can pose the public health threat of Legionnaire’s Disease. There are many methods of controlling colonization of Legionella bacteria. However, a widely accepted and preferred method is to maintain the hot water system storage temperature continually at or above 140°F. Unfortunately, the elevated temperature necessary to minimize the growth of and kill Legionella bacteria has the potential to cause serious thermal shock and scalding injuries. As such, many plumbing engineers will specify that the water heater be set to maintain water temperatures at 140°F or higher to reduce the risk of Legionella, but then specify the appropriate mixing valve to ensure safe delivery of hot water to the fixtures. For a more thorough discussion of Legionella please go to here and the following link to the US Department of Labor OSHA information regarding Legionnaires’ Disease OSHA here

My question is not found in these FAQ’s, where do I look next?

Check out the Hubbell Product Center at Here for a complete listing of all technical documentation available by model. Get easy access to Installation, Operation & Maintenance manuals, Sales Brochures, Service Bulletins, Wiring Schematics, Parts Breakdowns and various other technical documents related to the full line of Hubbell water heaters. Or, if you prefer, please call us at 800-647-3165 and ask to speak to a Sales Engineer.

Downloads

Many of our products literature is available online for download. To open these files, a PDF viewer is required. If you do not have one, Adobe provides Acrobat Reader free of charge for viewing only. Use this link to download Acrobat Reader. You may also choose to download the file to your PC for future reference or printing. On most operating systems, simply right-click on the links below, choose "Save target as..." or "Save link as...", choose a location and it will save the document to your computer for future reference.

Model F Specific Questions

My question is not found in these FAQ’s, where do I look next?

Check out the Hubbell Product Center at Here for a complete listing of all technical documentation available by model. Get easy access to Installation, Operation & Maintenance manuals, Sales Brochures, Service Bulletins, Wiring Schematics, Parts Breakdowns and various other technical documents related to the full line of Hubbell water heaters. Or, if you prefer, please call us at 800-647-3165 and ask to speak to a Sales Engineer.

Where can I purchase replacement parts?

Parts are available for your Hubbell water heater direct from the factory. Please call 800-647-3165 and ask for our parts department. Please have your model and serial number handy.


For Further Assistance Please Contact a Hubbell Tech Support Rep.

Sam Wellington
samw@hubbellheaters.com
203-378-2659 x136
D.J. Dineson
djdineson@hubbellheaters.com
203-378-2659 x125
Hubbell Heaters
45 Seymour Street
P.O. Box 288
Stratford, CT 06615-0288
Tel: 203-378-2659
Fax: 203-378-3593
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