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
  • 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
DI/RO electric hot water heater Model HD
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Model HD

Deionized (RO/DI) Water Heater

Point-of-Use up to 88 KW Single or Three Phase Voltages

The Hubbell Model HD is a dependable and trouble-free source for hot water in continuous, cyclical, or variable flow systems in a wide range of hot deionized water, RO water and mildly corrosive applications. The heart of the HD Model is a solid 316L stainless steel ASME stamped pressure vessel which is impervious to the corrosive effects of hot water and provides maximum vessel longevity. Only the highest quality materials and components a re used to ensure reliable operation in even the most demanding application. The HD Model is ready for immediate installation and service and all electrical operating controls are factory selected, sized and wired. When you specify and install a Hubbell Model HD, you will have confidence in knowing the owner will be provided with a trouble-free and long lasting source for hot RO/DI water.


cULUS Listed ANSI NSF 5 ASME
  • Industrial Grade Construction

    • High grade construction materials provide maximum longevity
    • Packaged with all electrical operating controls for trouble-free installation and operation
  • Corrosion Resistant

    • All Type 316L stainless steel construction resists corrosion
    • Heating elements are all 316L SS to ensure long operating life
  • Proven Design

    • Small reserve capacity lowers peak power demand and reduces operating costs
    • Most models are easily upgradeable to handle future expansion
    • Full range of sizes available to meet your exact heating needs

Why Install A Hubbell RO/DI Water Heater?

  • Reliability

    The Hubbell RO/DI water heater is designed to provide many years of operation. The tank is all 316L stainless steel construction and is designed, constructed and stamped in strict conformance to ASME Section VIII.

  • Lower Operating Costs

    The Hubbell pressure vessel is encapsulated in environmentally friendly CFC/HCFC free closed cell foam insulation to minimize stand-by heat loss. This high quality insulation reduces heat loss by more than half when compared to fiberglass type insulation.

  • Advanced Construction

    Provides trouble-free system integration, operation and maintenance. Temperature control is provided by an electronic solid state digital display controller. The controller is fully adjustable from 32-194°F (0°-90°C) and includes an adjustable temperature differential. The heater control circuit includes a float type low water cut off feature to prevent the heating elements from dry firing and an internal leak detection sensor notifies an operator if water is present in the control cabinet. For further ease of service and maintenace, all controls are mounted such that when a component is removed for service no other component needs to be removed and all sensing functions are integrated into one probe. The heating element and sensing probe are straight thread screw types that utilize a Vitron O-ring to minimize leakage problems as is common with flat gaskets and NPT connections.

Model HD6 Shown (24-58KW size)

Model HD6 How It Works

Model HD - RO/DI Water Heater Specifications

Vessel: 316L Stainless Steel
Storage Capacity: 6 or 16 Gallons
Voltage: 120 thru 600 Volt
Phase: 1 Φ or 3 Φ
Connection (1.5-58kW):
Material: 316L Stainless Steel
Inlet: 3/4" Male NPT
Outlet: 3/4" Male NPT
Relief Valve: 3/4" Female NPT
Connection (64-88kW):
Material: 316L Stainless Steel
Inlet: 1 1/2" Male NPT
Outlet: 1 1/2" Male NPT
Relief Valve: 1" Female NPT
Temperature Controller:
Type: Solid State
Style: Immersion
Range: 32-194°F (0-90°C)
Hi-Limit:
Type: Solid State
Style: Immersion
Reset: Manual
Range: 210°F (Fixed)
Pressure Drop:
HD6 HD16 (3/4") HD16 (1 1/2")
5 GPM 0.11 psi 0.15 psi < 1 psi
10 GPM 0.43 psi 0.58 psi < 1 psi
25 GPM 2.6 psi 3.6 psi < 1 psi
50 GPM 10.5 psi 14.4 psi < 1 psi
Heating Element:
Type: Screw Plug with Viton O-ring
Style: Tubular
Sheathing: 316L Stainless Steel
Passivated and Electropolished
Controller:
Degrees: °F or °C (Default: °F)
Differential: 1° thru 20° (Default: 2°)
Display: Shows set point or actual temperature (Default: Set Point
Staging: 1 or 2 step
Magnetic Contactor:
Type: Definite Purpose
Control Circuit: 208/240 Volt
Internal Wiring: Tefzel 750 200°C:
Digital Display: 3 digit 7 segment LED display
Fault Indicators: Hi-Temperature
No Probe
Leak Detection
Low Water Type: Float 316L Stainless Steel
Design WP: 150 psi
Design TP: 225 psi
Relief Valve:
Approvals: ASME/CSA
Temperature: 210°F
Pressure: 150 psi
Material: Bronze
Insulation: CFC/HCFC Free
Closed Cell Foam
Outer Jacket: 304 Stainless Steel
Warranty:
Vessel: 3 Years
Electrical: 1 Year

Model HD6 (1.5 to 18 kW) Dimensions

Outline Dimensions
Model Number Selection Chart With Amperage
Base Model KW Rating Storage Capacity (Gallons) Full Model Number Listed By Voltage & Phase Amperage Draw By Voltage & Phase
120 V 208 V 240 V 480V 600V 120V 208 V 240 V 480 V 600 V
HD6 1.5 6 Gallons HD61A 13
2.5 HD62A 21
4 HD64RS HD64S HD64T4S 19 17 8
6 HD66RS HD66R HD66S HD66T HD66T4 HD66T6 29 17 25 14 7 6
7 HD67RS HD67R HD67S HD67T HD67T6 34 19 29 17 7
9 HD69RS HD69R HD69S HD69T HD69T4 HD69T6 43 25 38 22 11 9
10 HD610RS HD610R 48 28
12 HD612RS HD612R HD612S HD612T HD612T4 HD612T6 58 33 50 29 14 12
13.5 HD613RS HD613R HD613S HD613T HD613T4 HD613T6 65 38 56 33 16 13
18 HD618RS HD618R HD618S HD618T HD618T4 HD618T6 87 50 75 43 22 17
Note: The 6, 7 and 9 kw models in 208 and 204 volt can be field converted from either 1 phase to 3 phase or from 3 phase to 1 phase

Model HD6 (24 to 58.5 kW) Dimensions

Outline Dimensions
Model Number Selection Chart With Amperage
Base Model KW Rating Storage Capacity (Gallons)
208 V 240 V 480 V 600V 208 V 240 V 480 V 600 V
HD6 24 6 Gallons HD624RS HD624R HD624S HD624T HD624T4 HD624T6 115 67 100 58 29 23
27 HD627RS HD627R HD627S HD627T HD627T4 HD627T6 130 75 113 65 33 26
36 HD636RS HD636R HD636S HD636T HD636T4 HD636T6 173 100 150 87 43 35
40.5 HD640RS HD640R HD640T6 195 113 39
45 HD645R HD645S HD645T HD645T4 125 188 108 54
54 HD654R HD654T HD654T4 HD654T6 150 130 65 52
58.5 HD658R HD658T HD658T4 HD658T6 163 141 70 56

Model HD16 (1.5 to 58.5 kW) Dimensions

Outline Dimensions

Model HD16 (64 to 88 kW) Dimensions

Outline Dimensions
Model Number Selection Chart With Amperage
Base Model KW Rating Storage Capacity (Gallons) Full Model Number Listed By Voltage & Phase Amperage Draw By Voltage & Phase
120 V 208 V 240 V 480V 600V 120V 208 V 240 V 480 V 600 V
HD16

w/ 3/4" inlet and outlet
1.5 16 Gallons HD161A 13
2.5 HD162A 21
4 HD164RS HD164S HD164T4S 19 17 8
6 HD166RS HD166R HD166S HD166T HD166T4 HD166T6 29 17 25 14 7 6
7 HD167RS HD167R HD167S HD167T HD167T6 34 19 29 17 7
9 HD169RS HD169R HD169S HD169T HD169T4 HD169T6 43 25 38 22 11 9
10.5 HD1610RS HD1610R 50 29
12 HD1612RS HD1612R HD1612S HD1612T HD1612T4 HD1612T6 58 33 50 29 14 12
13.5 HD1613RS HD1613R HD1613S HD1613T HD1613T4 HD1613T6 65 38 56 33 16 13
18 HD1618RS HD1618R HD1618S HD1618T HD1618T4 HD1618T6 87 50 75 43 22 17
24 HD1624RS HD1624R HD1624S HD1624T HD1624T4 HD1624T6 115 67 100 58 29 23
27 HD1627RS HD1627R HD1627S HD1627T HD1627T4 HD1627T6 130 75 113 65 33 26
36 HD1636RS HD1636R HD1636S HD1636T HD1636T4 HD1636T6 173 100 150 87 43 35
40.5 HD1640RS HD1640R HD1640T6 195 113 39
45 HD1645R HD1645S HD1645T HD1645T4 125 188 108 54
54 HD1654R HD1654T HD1654T4 HD1654T6 150 130 65 52
58.5 HD1658R HD1658T HD1658T4 HD1658T6 163 141 70 56
HD16

w/ 1-1/2" inlet and outlet
64 16 Gallons HD1664R 178
68 HD1668T HD1668T4 164 82
81 HD1681R HD1681T HD1681T4 225 195 98
86 HD1686R HD1686T6 239 83
88 HD1688T HD1688T4 212 106

Model HD Sizing Information

Model HD Sizing Information Steps

Model HD Sizing Example

Recovery Ratings In GPM

KW Rating Recovery Rate in GPM for °F Temperature Rise Listed Below (°FΔT)
20° 30° 40° 60° 70° 80° 100° 110° 120° 140°
1.5 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51
2.5 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.68
4 1.36 0.91 0.68 0.45 0.39 0.34 0.27 0.25 0.23 0.19
6 2.05 1.36 1.02 0.68 0.58 0.51 0.41 0.37 0.34 0.29
7 2.39 1.59 1.19 0.80 0.68 0.60 0.48 0.43 0.40 0.34
9 3.07 2.05 1.54 1.02 0.88 0.77 0.61 0.56 0.51 0.44
10 3.58 2.39 1.79 1.19 1.02 0.90 0.72 0.65 0.60 0.51
12 4.09 2.73 2.05 1.36 1.17 1.02 0.82 0.74 0.68 0.58
13.5 4.61 3.07 2.30 1.54 1.32 1.15 0.92 0.84 0.77 0.66
18 6.14 4.09 3.07 2.05 1.75 1.54 1.23 1.12 1.02 0.88
24 8.19 5.46 4.09 2.73 2.34 2.05 1.64 1.49 1.36 1.17
27 9.21 6.14 4.61 3.07 2.63 2.30 1.84 1.67 1.54 1.32
36 12.28 8.19 6.14 4.09 3.51 3.07 2.46 2.23 2.05 1.75
40.5 13.82 9.21 6.91 4.61 3.95 3.45 2.76 2.51 2.30 1.97
45 15.35 10.24 7.68 5.12 4.39 3.84 3.07 2.79 2.56 2.19
54 18.42 12.28 9.21 6.14 5.26 4.61 3.68 3.35 3.07 2.63
58.5 19.96 13.31 9.98 6.65 5.70 4.99 3.99 3.63 3.33 2.85
64 21.84 14.56 10.92 7.28 6.24 5.46 4.37 3.97 3.64 3.12
68 23.20 15.47 11.60 7.73 6.63 5.80 4.64 4.22 3.87 3.31
81 27.64 18.42 13.82 9.21 7.90 6.91 5.53 5.02 4.61 3.95
86 29.34 19.56 14.67 9.78 8.38 7.34 5.87 5.34 4.89 4.19
88 30.03 20.02 15.01 10.01 8.58 7.51 6.01 5.46 5.00 4.29

Variables To Solve For:

KW Requirement: _________ GPM x ________ °FΔT x 0.1465 = ________ KW
Temperature Rise: _________ KW x 6.824 ÷ ________ GPM = ________ °FΔT
Flow Rate: ________ KW x 6.824 ÷ _________ °FΔT = _________ GPM

Electrical

(KW x 1000 ÷ Volts) ÷ 1.73 = Amps 3 phase
(KW x 1000) ÷ Volts) = Amps 1 phase

Voltage De-Rating Factors

Rated Voltage Applied Voltage De-Rating Factor
600 575 92%
600 550 84%
480 460 92%
480 440 84%
240 230 92%
240 220 84%
When the actual supply voltage (applied voltage) is different than the design voltage (rated voltage) the resulting KW output will be affected. Please see the chart for typical voltage de-rating factors or use the following formula:

Applied Voltage² ÷ Rated Voltage² x Rated KW = KW output at applied voltage

Optional Equipment

  • Slide mounting bracket for hanging installation (Model HD6 and HDF6 only)
  • Form fitted protective outer cover for wet locations
  • Flanged toe stainless steel legs for floor mounting
  • Flanged inlet and outlet connections (ANSI Class 150)
  • Alternate threaded inlet/outlet connection size (Model HD16 only)
  • Remote control package
  • Alarm contact for fault condition (N.O. or N.C.)
  • Pump interlock terminal block to prevent energizing when pump is not on
  • Sanitary connections
  • Solid state power controllers for increased temperature accuracy
  • Additional tank tapping
  • Low Temperature Alarm
  • Factory supplied manifold kit single point connection for redundancy and high demand applications

Fully Packaged Systems

  • Engineered and built to meet your exact needs
  • Factory integrated system simplifies installation
  • Factory selected components ensures reliable performance as a system

Contact us directly to discuss your Packaged System


Model HD Fully Packaged System
Model HD Manifold Assembly Option

Optional Clean In Place Design

The ability for a piece of equipment to be CIP (Cleaned-In-Place) or SIP (Sterialized-In-Place) is a crtical feature important to many industries including the food, dairy, beverage, biotechnology, pharmaceutical, cosmetic and medical industries. In these industries there are hot water applications which require the water heating equipment to be designed and constructed for use in a hygienic environment. To meet this need, Hubbell offers as an optional feature an electropolished and passivated vessel design which includes a removable rear flange to facilitate inspection, cleaning and sterilization of the interior of the water heater vessel with minimal disruption to the production process. This optional feature, designated as the Hubbell HDF6 base model, is available in 6 gallon capacity and power ratings ranging from 1.5 to 58.5 KW. The drawing below depicts the removable flang feature, and the selection chart below provides details on all available sizes.

Optional Clean-In-Place Design
Model Number Selection Chart With Amperage
Base Model KW Rating Storage Capacity (Gallons) Full Model Number Listed By Voltage & Phase Amperage Draw By Voltage & Phase
120 V 208 V 240 V 480V 600V 120V 208 V 240 V 480 V 600 V
HDF6 1.5 6 Gallons HDF61A 13
2.5 HDF62A 21
4 HDF64RS HDF64S HDF64T4S 19 17 8
6 HDF66RS HDF66R HDF66S HDF66T HDF66T4 HDF66T6 29 17 25 14 7 6
7 HDF67RS HDF67R HDF67S HDF67T HDF67T6 34 19 29 17 7
9 HDF69RS HDF69R HDF69S HDF69T HDF69T4 HDF69T6 43 25 38 22 11 9
10 HDF610RS HDF610R 48 28
12 HDF612RS HDF612R HDF612S HDF612T HDF612T4 HDF612T6 58 33 50 29 14 12
13.5 HDF613RS HDF613R HDF613S HDF613T HDF613T4 HDF613T6 65 38 56 33 16 13
18 HDF618RS HDF618R HDF618S HDF618T HDF618T4 HDF618T6 87 50 75 43 22 17
24 HDF624RS HDF624R HDF624S HDF624T HDF624T4 HDF624T6 115 67 100 58 29 23
27 HDF627RS HDF627R HDF627S HDF627T HDF627T4 HDF627T6 130 75 113 65 33 26
36 HDF636RS HDF636R HDF636S HDF636T HDF636T4 HDF636T6 173 100 150 87 43 35
40.5 HDF640RS HDF640R HDF640T6 195 113 39
45 HDF645R HDF645S HDF645T HDF645T4 125 188 108 54
54 HDF654R HDF654T HDF654T4 HDF654T6 150 130 65 52
58.5 HDF658R HDF658T HDF658T4 HDF658T6 163 141 70 56

Model Number Designation HD



Step 1
Base Model
Number:

HD6
HD16
HDF6

Step 2
KW Rating:
1 thru 88
Step 3
Voltage/Phase/Hz:
A = 120-1-60
RS = 208-1-60
R = 208-3-60
S = 240-1-60
T = 240-3-60
W = 277-1-60
T3 = 380-3-50/60
T7 = 415-3-50/60
T5 = 440-3-60
T4 = 480-3-60
T4S = 480-1-60
T6 = 600-3-60
Step 4
Options:
K = Slide mounting bracket for hanging installation
(Model HD6 and HDF6 only)
W = Form fitted protective outer cover for wet locations
N = Flanged toe stainless steel legs for floor mounting
F = Flanged inlet and outlet connections (ANSI Class 150)
B = Alternate threaded inlet/outlet connection size (Model HD16 only)
J = Remote control package
T = Alarm contact for fault condition (N.O. or N.C.)
I = Pump interlock terminal block to prevent energizing
when pump is not on
R = Sanitary connections
C = Solid state power controllers for increased temperature
accuracy
P = Additional tank tapping
L = Low Temperature Alarm
M = Factory supplied manifold kit single point connection
for redundancy and high demand applications

Example:

HD645T4

A deionized water heater model HD with 6 gallons storage capacity, 45 KW rated at 480 volt 3 phase 60 Hz power.

Model HD Specific Questions

What is delivery on a standard Hubbell HD model?

The delivery time for a standard Hubbell model HD water heater is 2 days or less. However, if optional accessories are selected the delivery time maybe extended, please consult with your Hubbell Sales Engineer.

Is the bronze body T&P relief valve OK for my application?

All water heaters require a combination temperature and pressure safety relief valve to relieve excessive water pressure or excessive temperature water in the event of a runaway overheating condition. These relief valves are manufactured with a bronze body with a thermo-bonded (non metallic) coated immersion sensor. After independent third party testing conducted by Analytical Services, Inc. it has been verified that the T&P relief valve has no appreciable effect on the purity and quality of high quality ultrapure DI/RO water. However, should the installation warrant that no yellow metals be present in the plumbing system, as an option Hubbell can supply a 316 stainless steel pressure only relief valve and a separate temperature relief valve can be installed by others.

What is the difference between threaded NPT and Sanitation flanges?

Sanitary fittings are widely used in the food, dairy, beverage, biotech, pharmaceutical and other sanitary process industries. Sanitary fittings offer a way to connect two parts by creating a seal which is accomplished by means of a round gasket in a groove on the face of the fitting, with the two parts coupled by a re-attachable clamp. Similar to a traditional ANSI flange connection, the sanitary design eliminates the need for a male and female, since the fitting mates to another identical fitting. National Pipe Thread Taper (NPT) is a US standard for tapered threads used on threaded pipes and fittings as a means to form a seal when connecting two pieces. The taper on NPT threads allows two connecting pieces to form a seal when torqued as the flanks of the threads compress against each other. The Hubbell HD model is supplied as standard with NPT cold water inlet, hot water outlet and T&P relief valve connections. A customer with a sanitary system will in most instances install adapters to mate the NPT connection from the Hubbell heater to their sanitary plumbing system. However, as an option Hubbell can provide the model HD water heater with welded sanitary connections, thereby avoiding the use of NPT to sanitary adapters. However, it should be noted that the immersion heating elements are only available in threaded (straight not NPT) style. For the most stringent applications, the Hubbell heater can be specified with the Clean In Place (CIP) option including all electropolished interior surface and removable flanged end for inspection and cleaning, please consult with your Hubbell Sales Engineer for details.

Why is the ASME stamp important for my application?

The ASME Boiler and Pressure Vessel Code (BPVC) is an American Society of Mechanical Engineers (ASME) standard that provides the rules for the design, fabrication and inspection of boilers and pressure vessels. The Hubbell water heater carries the ASME stamp verifying that the pressure vessel has met the BPVC and inspected by a third party Authorized Inspector (AI). In most industrial facilities a pressure vessel must be ASME stamped to meet state and federal requirements, not to mention end user insurance requirements based upon liability concerns.

What is the standard interior finish?

The standard interior surfaces have a mill 2B finish less than or equal to Ra 80. No surface treatment of material or welds is performed. As an option, Hubbell can provide mechanical finishing services for material and welds to achieve a high quality finish. In these applications the end user must specify the surface finish required, typically expressed as Average Arithmetic Roughness (Ra). Ra is the measurement of surface roughness, is the average deviation from a mean surface and is measured in micro inches or microns.

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 HD 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
Product Center
Hubbell Binder

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