Hubbell Electric Heater MTX User Manual

Marine Products Division
Model MTX
Tankless On Demand Electric Water Heater
Available Up To 54 KW in Single or Three Phase Voltages
The Hubbell Model MTX Tankless Water Heater is the perfect choice for Marine applications.
SAVES WEIGHT
SAVES SPACE
SAVES TIME
Marine Approvals
American Bureau of
Shipping (ABS) Type Approved
ABS Approval eliminates
costly delays and uncertainties during ship inspection
Heavy Duty Construction
Simple to specify and easy to operate
Factory wired electrical
controls provide trouble­free installation and operation
Weight and Space Saving
Signicantly reduces weight and saves space compared to storage tank water heaters
On demand heating eliminates costly and cumbersome storage tanks
Instantaneous design reduces stand-by heat loss and lowers operating costs
Reliable
Engineered for your
specic application
to ensure reliable operation
Constructed with high grade
materials to ensure long operating life
Tankless On Demand Water Heater for Marine Applications
The Hubbell MTX Tankless model is a highly reliable and easily maintained electric water heater designed for operation in a marine application. The Hubbell MTX Tankless is compact,
highly efcient, takes up minimal space, and reduces operating
costs. Hubbell’s vast experience, meticulous engineering, and advanced manufacturing processes ensure that you can rely on the MTX Tankless for your water heating needs in even the most demanding and critical applications. It makes sense to specify and install a Hubbell MTX Tankless model for your heating requirements, and as the owner you will be provided with a quality product that is long lasting, trouble-free, and energy
efcient.
C
I
F
I
E
F
N
E
T
E
N
E
R
G
Y
&
W
A
T
E
R
S
A
V
G
I
N
High Efciency Compact Electric Tankless Water Heater
%
8
9
Y
L
D
N
E
I
R
F
O
C
E
ANSI/NSF 5
ISO 9001:2008
The Electric Heater Company
P.O. Box 288 ■ Stratford, CT 06615-0288
Phone: 203- 378-2659
info@hubbellheaters.com
FAX: 203- 378-3593
ISO
Marine Products Division
Hubbell Tankless Features
How It Works
The Hubbell Model MTX electric tankless water heater contains high powered heating elements that
heat water only when there is demand for hot water. When hot water is needed, a built in ow sensor measures the exact ow 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 ring signal is sent to the fast acting triacs in order to
modulate the heating elements to the precise level needed to meet demand. The Hubbell tankless heater uses only as much power as is needed, while delivering accurate and consistent hot water temperature.
Heater Overview - 3 Element Model Shown
Stainless Steel Exterior
Heating Chamber
All copper and bronze construction
Outlet Thermistor
Provides feedback to ensure consistent outlet temperature
HOT WATER OUT
Drain Port
Simplies maintenance
COLD WATER IN
Dielectric Unions
Simplies plumbing installation
Flow Meter
Measures the exact ow rate which enables the control system to provide perfectly matched heating power with demand
Power Distribution Block
Provides a heavy duty single point power connection
(Only Required on Certain Models)
Fully disengages the heating elements in a fault condition
Sleek design and corrosion resistant
Magnetic Contactor
(Only Required on 3 Phase Units)
for long life
Control Transformer
Step down transformer provides
240 Volt control circuit power
(Only Required on Models over 240 Volt)
Commercial Quality Heating Elements
Incoloy sheathed for long life
Safety Thermostats
Auto resetting Hi-Limit thermostats protect against over heating
Solid State Switches
Modulate heating elements 0-100% to ensure accurate and consistent temperature and long element life
Inlet Thermistor
Senses cold water temperature
Numeric Digital Display
Electronic Temperature Controller is adjustable in 1° increments in either °F or °C
Bulkhead Mounting
Securely mounts to the bulkhead and saves valuable deck space
Tankless Model MTX Standard Specications
Heating Chamber:
Capacities:
Mounting:
Voltages:
Phase:
Power Factor:
Thermal Efciency:
Copper and Bronze
5 thru 54 kW
Bulkhead Mounted
208 thru 600 Volt 50/60 Hz
Φ
and
3
(balanced)
Φ
1
0.999
98% +
Inlet/Outlet Size:
MTX: MHX:
3
/4" Dielectric Union Copper Sweat
1" Dielectric Union Copper Sweat
Min/Max Flow:
MTX: MHX:
2
Thermostat Range:
0.2 GPM Min, 8.0 GPM Max
0.5 GPM Min, 40 GPM Max
32 -194°F / 0-90°C
Hi-Limit:
Design WP:
Design TP:
Elements:
Standby Power:
Chamber
Electrical Warranty:
Enclosure:
Approvals:
200°F (Fixed)
100 psi
300 psi
Incoloy 800
< 3 Watts
5 Year
1 Year
Stainless Steel Brushed Finish
ABS, cULus, UL EPH ANSI/NSF 5
+ 4 hidden pages