prestige Excellence Indirect Water Heater Part 2 of 2 * I N S TALLAT I O N AN D MAI N T E NAN C E * M A N U A L WARNING IMPORTANT • Before proceeding with installation and operation, read entire manual carefully. Failure to do so can cause injury or property damage. • When receiving the PRESTIGE Excellence, any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.
Tables of Contents Product & Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Installation - Domestic Piping Temperature & Pressure (T&P) Relief Valve . . . . . . . . . . . . . . . . . .5 Drain Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Automatic Air Vent . . . . . . . . . . . . . . . . . . . . . . . .
Tables of Contents Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Water Heater Specifications Excellence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Performance Excellence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product & Safety Information Definitions The following terms are used throughout this manual to bring attention to the presence of potential hazards or important information concerning the product. DANGER NOTICE Indicates the presence of a hazardous situation which, if ignored, will result in death, serious injury or substantial property damage. Indicates special instructions on installation, operation or maintenance, which are important to equipment but not related to personal injury hazards.
Product & Safety Information CAUTION WARNING Protection must be taken against excessive temperature and pressure! Bacteria can develop in the domestic water system if certain minimum water temperatures are not maintained. TO PROTECT AGAINST EXCESSIVE TEMPERATURE AND PRESSURE DANGER • Check if the Temperature & Pressure (T&P) relief valve is installed in the location provided (DHW Side).
Pre-Installation 2. The pressure of the heat transfer medium is maintained less than the normal minimum operating pressure of the potable water system Codes Compliance Installation of the Excellence Water Heater must conform with the instructions in this manual and where applicable: • • Exception: Steam complying with section #1 above. local, state, provincial, and national codes, laws, regulations and ordinances. 3.
Pre-Installation Locating Water Heater • The Excellence is not intended for outdoor installations. • Locate Excellence so that any leakage from the tank or water connections will not cause damage to the area adjoining the water heater or to lower floors in the structure.
Installation - Domestic Piping Temperature & Pressure (T&P) Relief Valve • CAUTION To reduce risk of excessive pressures and temperatures in the water heater, install temperature and pressure protective equipment required by local codes, but no less than a combination temperature and pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Gas
Installation - Domestic Piping Drain Valve CAUTION Drain valve and fittings are supplied by others. Standard Installation • Install a tee connection at the domestic cold water inlet, as shown in Fig. 4, pages 9. • Pipe the drain piping with drain valve from the tee connection to: - a suitable place for disposal or - terminate within 12” of the floor T&P relief valve is not intended for constant duty, such as relief of pressure due to repeated normal system expansion.
Installation - Domestic Piping Domestic Piping • DANGER Union on domestic hot water outlet should be piped at a higher elevation than domestic water drain valve. This will make draining the water heater easier. • Use dielectric unions or couplings to protect hot and cold water fittings from corrosion when connecting dissimilar materials such as copper and galvanized iron pipe.
Installation - Domestic Piping DHW Hot Water Outlet T&P Valve (Drain Piping Not Shown) DHW Aux. Connection DHW Cold Water Inlet Air Vent Connection Fig. 2: Standard Installation of the T&P Relief Valve T&P Valve (Drain Piping Not Shown) Drain Dip Tube 3/4” Brass Tee 3/4” Brass Close Nipple DHW Hot Water Outlet DHW Aux. Connection Air Vent Connection DHW Cold Water Inlet Fig.
Installation - Piping Diagrams 12" Min. Heat Trap Loop (Optional) 12" min. Heat Trap Loop (Optional) C 3 4 H 8 5 M 6 1 Cold Water Inlet 9 Fig. 4: Standard Installation Domestic Piping Excellence Series Fig. 5: Standard Installation Domestic Piping with Optional Recirculation Excellence Series 1. 2. 3. 4. 5. 6. 7. 8 9.
Installation - Piping Diagrams Optional recirculation 2 7 M C N 3 Optional 12" Heat trap 1 4 8 6 3 Cold water inlet 9 3 7 2 Fig. 6: Domestic Piping with Optional Storage Tank 1. 2. 3. 4. 6. 7. 8 9. Mixing valve with check valve Flow check valve Shut-off valve Backflow preventer or pressure reducing valve(*) Thermal expansion tank Circulator (controlled by aquastat) Domestic drain valve Vacuum Breaker * (*) Optional devices may be required by local codes.
Water Heater Start-Up Filling the Inner (Domestic Water) Tank WARNING CAUTION • Never use the Excellence unless inner and outer tank of the water heater is completely filled with water. • Inner tank of the Excellence water heater must be completely filled and pressurized before pressurizing outer tank. Do not use automotive, ethylene glycol or petroleum-based antifreeze. Do not use any undiluted antifreeze. This can cause severe personal injury, death or substantial property damage.
Water Heater Start-Up DANGER HOT WATER CAN SCALD! • Water temperatures over 125ºF can cause severe burns instantly, or death from scalds. • Feel water before bathing or showering. • Consumer Product Safety Commission and some states recommend temperatures settings of 130ºF or less. Setting thermostat higher than 130ºF will increase risk of scald injury and cause severe personal injury or death.
Water Heater Start-Up Important Information - Read Before Proceeding Activating the Access Code To enter the parameter listing of the MCBA control, the installer must enter the service code as follows: WARNING This document is intended to be used by a factory trained and qualified heating contractor or service technician only. Read all instructions within this document and within the PRESTIGE Excellence Boiler Installation and Maintenance Manual, before proceeding.
Water Heater Start-Up P_10 Press STEP x6 - P_11 Press STEP x5 - WARNING Etc...... After Parameter 4 the display will show P followed by a two-digit number that increases with each press of the STEP button. NOTICE The actual parameter values displayed on the unit may vary depending on the application. The parameter sequence will always occur in the order shown. Once a particular parameter is reached, release the STEP button.
Water Heater Start-Up DHW Storage Temperature Setting The parameter setting for the DHW storage temperature is Parameter 1 and is accessible without having to enter the service code. To revise the parameter setting within the Prestige Control Module for the set point of the Domestic Storage temperature, the installer can access the parameter setting by entering the Parameter Mode PARA during normal operation, the service code is not required.
Water Heater Start-Up DHW OFF Differential DANGER The DHW ON Differential setting of Parameter 38 greatly affects the production of domestic hot water. A minimum setting of Parameter 38 could result in a rapid response to a DHW request for heat resulting in a potential scald hazard. It is strongly recommended that the installer utilize the factory supplied thermostatic mixing valve on the DHW outlet of the Excellence.
Water Heater Start-Up Troubleshooting Error Codes b_38 alternating with a status code of 9 4. Press the + or - button until the desired setting is achieved. Press STORE to save the setting. The display will flash when the revised setting is accepted. 5. Once the desired parameter setting has been revised and stored within the Prestige Control module, press RESET to exit the CODE mode.
Water Heater Start-Up FACTORy SETTING FOR PARAmETERS 18
Water Heater Maintenance Check function of field-installed controls and valves. See component manufacturer’s instructions. Maintenance Schedule Annual service by qualified service technician should include the following: Review homeowner’s maintenance responsibilities and their frequencies, including any not listed in the following section. Any procedure required by local codes. Check air vent operation. Verify system pressure.
Water Heater Maintenance If antifreeze is used in boiler water, check concentration. Boiler water (including additives) must be practically non-toxic, having toxicity rating or class of 1, as listed in Clinical Toxicology of Commercial Products. A maximum 50/50 mixture of inhibited propylene glycol is recommended. Follow antifreeze manufacturer’s instruction. WARNING Do not use automotive, ethylene glycol or petroleum-based antifreeze. Do not use any undiluted antifreeze.
Replacement Parts 3 1 2 Fig.
Water Heater Specifications 20.8" 529 mm 24.7" 628 mm 20.4" 516 mm 3” Vent Outlet 14.8" 377 mm 12" 306 mm 15" 381 mm 3” Combustion Air Inlet 11.4" 289 mm 3/4” NPSC Pressure Relief Valve Connection 3/4” NPSC Pressure Relief Valve Connection 3” Vent Outlet 3” Combustion Air Inlet 37.2” 945 mm 7.2" 183 mm 15.9" 405 mm 15.9" 405 mm 18.9" - 479 mm 1/2” NPSC Boiler Drain 2.4" - 61 mm 1/2” NPT Gas Connection 1” NPT Boiler Return 8.
Water Heater Specifications 3/4” NPT DHW Outlet 11.3" 286 mm 7.3" 186 mm 3.4” 87 mm 3/4” NPSC Aux. Connection (Rear) 1/2” NPSC Air Vent Connection 3/4” NPT DHW Inlet 4.
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