Tankless Electric Booster Heater
Available up to 54 KW
Single or Three Phase Voltages
The Hubbell model JTX Tankless electric booster heater is a higly reliable and easily maintained heater designed for operation in your commercial kitchen. The Hubbell JTX Tankless heater is compact, extremely efficient, takes up no floor space, and reduces operating costs. Hubbell's vast experience, meticulous engineering and advanced technology ensure that you can rely on the model JTX for your sanitizing rinse needs. The Hubbell JTX Tankless Booster Heater is the right choice for your booster heating requirements, as ou will be providing your customer with a quality product that is long lasting, trouble-free and energy efficient.
- How It
- Sizing &
- Formulas &
Heavy Duty Construction
- Constructed with high grade materials to ensure long operating life
- Turn-Key package is simple to specify and easy to install and operate
- Factory wired electrical controls provide trouble-free installation and operation
- Engineered specifically for use in commercial kitchens
- Wide selection of sizes to meet the needs of all dishmachine manufacturers
- Compact wall mount design saves precious floor space
- Digital display provides clear indication of set point temperature and fault conditions
- On demand heating provides environmentally friendly low cost operation
- Instantaneous design essentially eliminates stand-by heat loss and signifcantly lowers operating costs compared to traditional tank type booster heaters
- Over 98% efficient and saves over 2300 kW hours per year compared to tank type booster heaters
The Hubbell Model JTX electric tankless booster heater contains high powered heating elements that heat water only when there is demand from the dishmachine. When hot water is needed, a built in flow sensor measures the exact flow rate and that data combined with temperature readings at the heater's inlet and outlet are processed by the electronic temperature controller. This data is continuously transmitted to the temperature controller, which constantly calculates the precise amount of power (kW) needed to achieve the desired temperature. A zero cross over firing signal is sent to the heater's fast acting triacs in order to modulate the heating elements to the precise level needed to meet demand. The Hubbell tankless booster heater uses only as much power as is needed, while delivering accurate and consistent hot water temperature.
Note: The Hubbell Model JTX is designed for use with conveyor and flight type dish machines. This product is not intended for use with door style dish machines.
Tankless Booster Saves MoneyEnergy Savings
By heating water more efficiently...over 98% efficient...and essentially eliminating standby heat loss, the typical owner will save over 2300 kW·Hrs per year! Add to that the reduced maintenance costs of the Hubbell tankless booster compared to a tank type booster and the annual savings easily add up to over $750 per year.
2300 kW·Hrs x $0.16 per kWh = $368.00 Annual Energy Savings
Free up floor space, improve the look and cleanliness of your kitchen, and improve the longevity of your booster when you mount the Hubbell tankless on the wall.
Typical JTX Plumbing Installation
Model JTX Water Heater Specifications
JTX: 3/4" Dielectric Union Copper Sweat
JHX: 1" Dielectric Union Copper Sweat
JTX: 0.2 GPM Min, 8.0 GPM Max
JHX: 0.5 GPM Min, 40 GPM Max
A sophisticated electronic temperature controller with LED digital display provides the user interface. The temperature controller processes all flow and temperature data and calculates the precise amount of power needed to meet demand.
|Operator Control Capabilities|
|Power Limiting:||Allows the operator to reduce the power consumption by any percentage to provide installation and operational flexibility and savings.|
|Diagnostics:||Display inlet and outlet temperatures, flow rate and error codes to assist in troubleshooting.|
|Cost Calculator:||Determine the exact cost of operating the heater. Input your cost per KWÂ·Hr and the controller displays total KWÂ·HRs consumed, total cost of operation, and total hot water usage (shown in gallons or liters).|
|Temperature Control:||Set the digital display to the desired water temperature in °F or °C.Â Fully adjustable in 1° increments from 32-194°F (0-90°C). A user adjustable +/- 3° calibration feature provides additional control for superior accuracy.|
Each heating element is switched on/off using a fast acting solid state triac with zero cross over firing control. This switching schema provides full modulation of each heating element, ensuring that the precise amount of heat is added to meet demand. To improve operating efficiency and component longevity, each triac is mounted to a heat sink located on the incoming supply piping so that heat generated by the triac during the switching process is dissipated into the water.
All Hubbell tankless water heaters, including all 3 phase models, are engineered to operate as a balanced load and operate at 0.999 Power Factor. All Hubbell 3 phase models are designed for 3 wire (3 live, 1 ground) and 4 wire power systems and draw equal current across all conductors to maintain the power integrity of the users electrical system. Hubbell does not recommend the use of heaters that operate as an unbalanced load, as is common with staged heaters designed for star systems (3 live, 1 neutral, 1 ground) that require use of the neutral leg.Â All load switching in Hubbell tankless models is performed as zero cross over, eliminating phase angle firing interference and associated EMI issues.
The Hubbell tankless control schema ensures that usage is equalized across all heating circuits. To achieve this, once the controller has calculated the precise amount of kW required, all circuits are energized in a staggered fashion such that each circuit is proportionally and independently energized and then time staggered between circuits. This Full Resource Staging Schema reduces EMI output, increases component longevity, and provides highly accurate and consistent hot water temperatures.Â For three phase models, all circuits are fully modulated and synchronized to operate as a balanced load.
Remote Control:Ability to remotely enable or inhibit the heating operation of the unit using one of the following two methods:
1. Customer supplied 24VDC signal is user configured for either Inhibit Mode or Normal Operation Mode.
2. Customer supplied volt free contact is user configured for either Inhibit Mode or Normal Operation Mode.
Priority Control: An integrated SPDT potential free dry contact (NO/NC 10A @ 240VAC) energizes when the unit is heating and de-energizes when not heating. This feature is useful when it is desirable to give the water heater priority over another electrical load to ensure that both are not operational at the same time.
Heating Capacity and Amperage Chart
|KW Rating||Heating Capability in GPH at °F Temperature Rise (°FΔT)||MAX Amps (at 100% heater output)|
|3 Phase Voltages||1 Phase Voltages|
Alternate voltages including 277, 380, 415, 440 and 575 volt available. Please contact us directly for exact KW availability in these voltages.
Unshaded flows specify Base Model JTX, shaded flows must specify Base Model JHX due to flows exceeding 8 GPM.
The Hubbell Model JTX is designed for use with conveyor and flight type dish machines and is not intended for use with door style dish machines.
Step 1KW Requirement:
________ GPH x ________ °FΔT x 0.00244 = ________ KW
________ KW x 410 ÷ ________ GPH _________ °FΔT
________ KW x 410 ÷ ________ °FΔT = __________ GPH
Step 2Choose the Tankless model with the KW rating which meets the peak demand (GPH) and required temperature rise (°FΔT) for your application.
Step 3Choose the supply voltage available. Note the maximum amperage draw of the unit and verify availability.
Voltage De-Rating Factors
|Rated Voltage||Applied Voltage||De-Rating Factor|
|600 V||575 V||92%|
|600 V||550 V||84%|
|480 V||460 V||92%|
|480 V||440 V||84%|
|240 V||230 V||92%|
|240 V||220 V||84%|
|240 V||208 V||75%|
(Applied Voltage² ÷ Rated Voltage²) x Rated KW = KW output at applied voltage
The Hubbell Model JTX tankless booster heater is designed for use with conveyor and flight type dishmachines. If the dismachine is not listed, or if the application is other than a conveyor or flight type dishmachine, please contact us directly for assistance.
|Dishmachine Make & Model Number||
|40°F Rise||70°F Rise|
|CSL-1390, CA-2, CA-3, CA-4, SLAP 44||39||72|
|AMERICAN DISH SERVICE|
|Series "R" & " F" -CC, -EE, -LL, -MM, -LLL, -MMM, -PCC, -PEE, -PLL, -PMM (multi-tank) with suffix "LC"||13||24|
|Series XF-EE, XF-LL||17||30|
|Series XF-LL, XF-PLL, XF-MM, XF-PMM, XF-EEE, XF-LLL, XF-MMM (Multi-tank) with suffix "LC"||17||30|
|Series F-E, FA-EE, FA-PEE, FA-LL, FA-PLL, FA-MM, FA-PMM, F-EEE, FA-EEE, FA-LLL, FA-MMM, F-PE||30||54|
|Series R-L, R-PL, R-M, R-PM, F-L, F-PL, F-M, F-PM (single tank)||36||54|
|Series R-E, R-PE, XF-PEE, XF-PLL, XF-PMM, XF-EEE, XF-LLL, XF-MMM (multi tank)||45||60|
|NOTE: FA (Flight-A-Round) and RA (Rack-A-Round) use comparable "F" listing.|
|44DR, 66DRPW, 80DRHDFW, 70DRFFPW||12||24|
|66 WSPW, 44-WS, 66-WS, 64, 90FFPW, 100HDPW, 86PW, 84, 106PW,120HDPW, 110FFPW||13||24|
|44, 66 PW, 70FFPW, 80HDPW, 54, 76PW, 80FFPW, 90HDPW||24||45|
|40-KB, 44-KB-2-2, 40-KFWB, 40-KPRB, 40-KPRB-2-2, 40PRB-2-3, 60-KB, 60-KB-2-2, 60-KFWB, 60-KFWB-2-2, 60-KPRB, 60-KPRB-2-3, 64KB, 64-KB Corner, 64-KPRB Corner, 64-KPRB, 64-KPRB Corner, 64 Modular,86 Modular||30||54|
|44-KB, 44-KB Corner, 44-KPRB, 44-KPRB Corner, 54-KB, 54-KB Corner, 54-KPRB, 54-KPRB Corner, 44 Modular, 66 PW Modular, UC** Series 6' Center, UC-C4||36||57|
|CMA DISH MACHINES|
|CMA-44H with tank heater, CMA-66H||36||45|
Opti-Rinse Models: C44A, CRS-66A, CCS-66A,
CPW-80A, C54A, CRS-76A, CCS-76A, CPW-90A, C64A, CRS-86A, CCS-86A, CPW-100A, C88A, CRS-110A,
|C-54A, CRS-76A, CPW-90A, CCS-76A||39||72|
|C-44A, CRS-66A, CCS-66A, CPW-80A, C-64A, CRS-86A, CCS-86A CPW-100A||30||54|
|C-88A, CRS-110A, CPW-124A, CCS-110A||36||54|
|Opti-Rinse Models: C44AW, CRS-66AW, CCS-66AW, CPW-80AW||9||15|
|C-44AW, CRS-66AW, CPW-80AW, CCS-66AW||12||24|
|C-44, CRS-66, CPW-80||36||54|
|C-54, CRS-76, CPW-90||54||78|
C-64W, CRS-86W, CPW-100W, C-88W, CRS-110W,
|C-64, CRS-86, CPW-100||45||72|
|CL44e, CLPS66e, CLCS66e||15||24|
|CL54e, CLPS76e, CLCS76e||15||27|
|CL64e, CLPS86e, CLCS86e||15||27|
|Admiral 44, 66||15||27|
|Admiral 44-4, 66-4||24||36|
|135-20, 185-20, 250-20, 60-20, 85-20, R-106-2||24||45|
|Speeder 64, 86-3, Century (all), Super 106-2||24||45|
|Century 14, Clipper RC-##-RPW-W||24||39|
Clipper (all), R106-2, Super 106-2, Trac 321,
|44CE, 66 CERPW||30||54|
|54CE, 76 CERPW||36||60|
|64CE, 86 CERPW||27||39|
AJ-44, AJ-66, AJ-80, WH-44, ES-4400, ES-6600
|AJ-54, AJ-76, AJ-90||30||54|
|AJ-64, AJ-86, AJ-100||24||39|
|NOTE 1: Model 44CE with serial no.1999 or below requires larger booster than listed.|
|K-44, K-66, K-80||24||36|
|K-54, K-76, K-90, K-64, K-86, K-100||24||45|
|SCT-44-10-LW, SCT-44-LW, SCT-66S-LW, SCT-76S-LW, SCT-76SC-LW, SCT-90S-LW||12||24|
|SC-1-2-4-LW, SC-1-6-4-LW, SC-2-4-LW, SC-5-2-4-LW, SC-5-6-4-LW, SC-6-4-LW||24||45|
|SCT-64, SCT-86S, SCT-94S, SCT-94SC||24||39|
|SCT-108S, SCT-108SC, SCT-76, SCT-94SM||27||54|
SC-6-4, SCT-44, SCT-44-10, SCT-66S, SCT-76S,
|SCT-120S, SCT-120SC, SCT-120SM, SCT-150SM||36||57|
|STW-110, SC-1-2-7-4, SC-1-6-3-4, SC-1-6-7-4, SC-2-7-4, SC-5-2-7-4, SC-5-6-3-4, SC-5-6-7-4, SC-6-3-4, SC-6-7-4||39||72|
|SC-1-2-4, SC-1-6-4, SC 2-4, SC-5-2-4, SC-5-6-4||45||72|
|SCT-44-10-SC-1-3-4, SCT-44-10-3-4, SCT-44-SC-1-3-4, SCT-44-SC-3-4, SCT-54-SC-1-3-4, SCT-54-SC-3-4, SCT-76S-SC-3-4||45||72|
|STPC (Four Tank)||24||39|
|STPCW (Four Tank)||24||45|
|SCT-76, SCT-80, SCT-94, SCT-108, SCT-120||45||58|
SC-2-8, SC-2-9, SC-1-2-8, SC-5-6-8, SC-6-8, SC-6-9,
SC-1-6-8, SC-5-6-9, SC-5-2-9, SC-1-6-9, SC-5-2-8
NOTE 2. C models with serial no. 85-1041605 or greater use Opti-Rinse
For outdated models or dishmachines not listed consult Hubbell for recommended tankless booster size.
This selector chart is based upon 40°F and 70°F temperature rises, and 20psi flow.
All booster heaters are rated at 100% of the capacity of the dishwasher as recommended by the National Sanitation Foundation.
- Inlet and Outlet Valve assemblies simplify installation by integrating unions, shut offs, drain ports and relief valve port
- Heating chamber designed and built to ASME Section VIII and is "UM" stamped
- Water Treatment System: Provide superior mineral scale prevention and corrosion control by feeding a special blend of scale control compounds into the hot water stream before the booster. The in-line system includes a clear cartridge housing to allow an operator to view the cartridge and determine when it needs replacement without the need to open the system.
- Shock Absorber: Reduce the harmful pressures resulting from quick closing dishwasher solenoid valves by installing a shock absorber between the booster and the dishwasher
- T&P Relief Valve for installation in the hot water outlet piping. Required in Kentucky and Massachusetts
- Remote Control Display allows the heater to be installed in a remote location. The 3" x 5" NEMA 4 display enclosure can be located up to 250' from the heater and gives the operator full remote control and monitoring capabilities
Model Number Designation JTX
JTX = 8 GPM Max
JHX = 40 GPM Max
008 thru 054 KW
Number of Heating Elements:
RS = 208-1-60
R = 208-3-60
S = 208-1-60
T = 240-3-60
T3 = 380-3-50/60
T7 = 415-3-50/60
T5 = 440-3-60
T4 = 480-3-60
T6 = 600-3-60
A Hubbell tankless electric booster heater rated at 24 KW to provide 246 GPH at a 40°F rise and powered with 480 volt, three phase, 60 Hz.
- Model JTX Brochure PDF (2.7 MB)
- Model JTX Written Spec PDF (795 KB)
- Model JTX Written Spec DOC (25.5 KB)
- Model JTX O&M Manual PDF (1.7 MB)
- Tankless Low Lead Certificate PDF (546 KB)
- LFN45B-M1 Pressure Reducing Valve Install Manual PDF (915 KB)
- LFN45B-M1 Pressure Reducing Valve Spec Sheet PDF (682 KB)
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