DHT Techtanium TT-40 Installation & Operating Instructions Manual
Indirect water heaters
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Installation & Operating Instructions
TO THE INSTALLER: This manual is the
property of the owner and must be affixed
near the water heater for future reference.
TO THE OWNER: This water heater should be
inspected annually by a qualified Service
Agency.
FOR YOUR SAFETY
WARNING
Do not store or use gasoline or other
Improper installation, adjustment,
flammable vapors and liquids in the
alteration, service or maintenance can
vicinity of this or any other appliance.
cause injury or property damage. Refer
Installation and service must be
to this manual. For assistance or addi-
performed by a qualified Installer or
tional information, consult a qualified
Service Agency.
Installer or Service Agency.
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Summary of Contents for DHT Techtanium TT-40
- Page 1 Installation & Operating Instructions TO THE INSTALLER: This manual is the property of the owner and must be affixed near the water heater for future reference. TO THE OWNER: This water heater should be inspected annually by a qualified Service Agency.
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Page 2: Table Of Contents
• Temperature limiting valves are available, see manual. NOTICE The Techtanium Indirect-fired water heater is deemed to be used in a "commercial setting" if at any time the unit is operated at a temperature over 150ºF. Refer to warranty for additional information. -
Page 3: Product Selection
Ratings can be improved by increasing Techtanium thermostat setting and using a mixing valve to temper the hot water to the proper temperature. When temperatures greater than 119ºF are required, use a mixing valve at the outlet of the water heater or anti-scald fittings at point of use. - Page 4 CONTROL CONTROL D.C.W. INLET D.C.W. INLET BOILER WATER BOILER WATER OUTLET (RETURN) OUTLET (RETURN) TT-40, TT-55 TT-79, TT-119 KEY TO PHYSICAL SPECIFICATIONS (see table below). A-OVERALL TANK HEIGHT E-CONTROL B-DOMESTIC HOT WATER OUTLET F-DOMESTIC COLD WATER INLET INDIREC T WATER HEATER C-RECIRCULATION(TT-79 &...
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Page 5: Installation/Piping
Follow recommended piping and wiring diagrams. Upon completing installation, fill the tank with water. While The Location of the Techtanium heater. filling it leave a hot water faucet open until a steady stream of water is flowing. Then, shut the faucet and check for any Locate the heater so that there is easy access to the leaks thoughout the entire system. - Page 6 Standard Domestic Hot Water Out. A heat trap will improve energy efficiency by reducing piping heat loss. A T & P is required on all Techtanium heaters. Install a T & P valve (long element type) into the tapping designated for the T &...
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Page 7: Tank Installation
INSTALLATION/PIPING (cont’d) PIPING T & P TANK INSTALLATION DOM ESTI C HOT OUT D.H.W DOM ESTI C COLD I N * THERM AL TT-40, TT-55 ANSI ON TANK RECI RCULATI ON M80/M115 BOI LER FEED BOI LER BOILER RETURN CONTROLS... -
Page 9: Vwiring
DHT recommends the use of a priority control to help the boiler maintain desired temperature and The Techtanium heater operates in much the satisfy the tank's BTU requirements. same way as an additional heating zone, either utilizing the same circulator as household The Techtanium heater recovery ratings are heating or its own circulator. - Page 10 WIRING (cont’d) TANKLESS COIL BOILER APPLICATION - PRIORITY FIGURE 3a. Operation: When any thermostat calls for Jumper Placement: REMOVE the jumper heat, the boiler is given a signal to start. between terminals ZC and ZR. Connect The appropriate circulator is energized terminal ZC to ZC terminal on the only when the boiler temperature is above aquastat control.
- Page 11 WIRING (cont’d) COLD START BOILER APPLICATION - PRIORITY FIGURE 3b. TACO SR504 & SR506 SWITCHING RELAYS THERMOSTAT TECHTANIUM TEMP CONTROL ZONE 6 PRIORITY SR 506 ZONE 1 ZONE 2ZONE 3ZONE 4ZONE 5ZONE 6 POWER SIX ZONE SWITCHING RELAY ZONE 1...
- Page 12 WIRING (cont’d) ZONING WITH CIRCULATORS USING R8182D AND R845A RELAY ZONING WITH CIRCULATORS USING L8124 E-F AND R845A RELAY...
- Page 13 WIRING (cont’d) USING L8148A OR L8152A COLD START BOILER CONTROL WITH CIRCULATORS USING L8143A OR L8152A COLD START BOILER CONTROL WITH ZONE VALVES...
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Page 14: Maintenance
12 months) the servicing of the heater by a competent service techni- cian. The Techtanium Water Heater is provided with two magne- sium anti-corrosion anodes, an upper and a bottom anode. Lime or Sediment Buildup (Every 6 months) Assessment of the condition of the bottom anode can be made by judging the condition of the upper anode. -
Page 15: Warranty
The warranties listed in this section shall apply to Diversified Heat Transfer Techtanium™ indirect-fired water heaters used in a commercial setting by original consumer purchasers only. A “commercial setting” as used herein shall mean any usage not falling within the above definition of a “residential setting” . A Techtanium indirect-fired water heater shall be deemed to be used in a “commercial setting”... - Page 16 These warranties are void and shall not apply under the following circumstances: 1. The Techtanium™ water heater was not installed or repaired by a heating contractor whose principal occupation is the sale, installation and repair of plumbing, heating and/or air conditioning equipment.
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