TX Series Installation, Operation, and Maintenance Manual
Diversified Heat Transfer, Inc.
439 Main Road, Route 202
Towaco, New Jersey 07082
Page
4
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Phone: 800-221-1522
Website: www.dhtnet.com
Water temperatures over 125°F can cause severe burns instantly or
death from scalds.
Children, disabled, and elderly are at the highest risk of being
scalded.
See instruction manual before setting temperature at water
heater.
Feel water before bathing or showering.
Temperature limiting valves are available; see manual.
NOTE:
The TX Series Indirect Water Heater is deemed to be used in a "commercial setting" if at any time the
unit is operated at a temperature over 150°F. Refer to warranty for additional information.
SECTON 2: PRODUCT SELECTION/PERFORMANCE
DHT’s TX Series are indirect water heaters that use part of the home’s boiler heating hot water to heat
domestic water. They offer lower installation and maintenance costs in addition to operational cost
savings due to higher efficiency of the combination system. These units can be coupled with both
condensing and non-condensing type boilers with a wide range of operating temperature ranges to
achieve high efficiency within an optimized space. Stored hot water inside the tank helps to meet the
large instantaneous demand within a short period and provides thermal mass for storage. This helps to
reduce the number of cycles on boiler under the periods of no load to low load conditions and ensures
there is always hot water present.
Domestic cold water enters the unit through the cold water inlet connection toward the bottom of the
tank, and hot water is supplied through the connection on top (see Section 3). If the tank temperature
falls below the set point, boiler water is pumped through the heat exchanger coils, where it heats the
domestic water to recover the water temperature inside the tank to set point. Boiler water enters the
heat exchanger through the inlet connection located on top of the heat exchanger and flows downward
to have counter flow arrangement for effective heat transfer.
The unit is fully constructed of high-quality 444 stainless steel materials; fully automated welding
technology; and passivated preventing corrosion, offering excellent performance and service for many
years. Unlike glass-lined water heaters, an anode is not needed, reducing maintenance costs for the
consumer.
1.
The following guidelines apply to residential systems only. For commercial or institutional
installations contact the factory directly for assistance.
2.
Determine the quantity of domestic hot water required. Factors to consider:
a.
Estimate typical peak hour demand. Determine the general time of day (morning, noon,
evening) when the most hot water is used. Use chart below to determine potential
maximum usage.
HOT
BURN
