Bosch AE 115 Handbook

Bosch AE 115 - Water Heating Electric Tankless Whole House Heater Manual

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  • Bosch AE 115 | Handbook - Page 1
    Bosch Thermotechnology Corp. BoschThermotechnology Corp. 340 Mad River Park, Waitsfield, VT 05673 Telephone 866-642-3199
  • Bosch AE 115 | Handbook - Page 2
    fault circuit interrupter. Contents Specifications 3 Installing the PowerStar 3 Starting up the PowerStar 8 How the PowerStar works 9 Using the PowerStar 10 Spare Parts 11 Maintenance 11 Troubleshooting 12 W arranty 15 SAVE THESE INSTRUCTIONS Keep this guide in a safe place once
  • Bosch AE 115 | Handbook - Page 3
    : P1-09-25). Locating the Powerstar WARNING: Do not install the water heater in an area where there is a chance of freezing. Damage to the water heater as a result of freezing will not be covered under warranty. • If being used in a public place, locate the heater out of easy reach to discourage
  • Bosch AE 115 | Handbook - Page 4
    in position against the wall and mark the four mounting holes • Drill the holes and secure the heater using the four wood screws supplied. Diagram 1 AE115 Unit AE125 Unit Water Connections WARNING: Do not install a non-return check valve within 10 feet of the inlet. WARNING: Do not apply heat or
  • Bosch AE 115 | Handbook - Page 5
    per the Canadian Electrical Code, C22.1-02 Section 26-744, an auxiliary terminal block must be fitted to the heater before connecting to the elect rical supply. This is available as a kit from Bosch Thermotechnology Corp. Part Number "AE Canada Kit". (Contact 866-642-3199). US wiring • The minimum
  • Bosch AE 115 | Handbook - Page 6
    240V AC circuits protected by two separate and independent double pole breakers (as shown) rated at 40 A each. Diagram 3 AE125 Terminal Block Connection The AE125 requires three independent 240V AC circuits protected by three separate and independent double pole breakers (as shown) rated at 40
  • Bosch AE 115 | Handbook - Page 7
    protected by an 80A double pole circuit breaker. • The AE125 requires a 120A 240V AC single phase supply protected by a 120A double pole circuit breaker. • The power cable size and the installation must be in accordance with the Canadian Electrical Code, C22.1-02. • The incoming hole diameter on
  • Bosch AE 115 | Handbook - Page 8
    Starting up the PowerStar Checking for leaks and purging air • Verify all circuit breakers supplying power to the water heater are turned off. • Open all hot water taps supplied by the water heater and inspect all water connections for leaks. • With all hot water taps still open, inspect each tap to
  • Bosch AE 115 | Handbook - Page 9
    240 volts. IMPORTANT Before leaving the site, the installer should demonstrate the unit t o the user and give them this guide. How the PowerStar works • The PowerStar heats water continuously as it flows through the heater modules. • The electronic control PCB monitors the flow rate and the incoming
  • Bosch AE 115 | Handbook - Page 10
    Diagram 4: Internal wiring schematic for single phase AE125 unit. (AE115 does not have Elt 5 & 6 fitted and uses two supplies). (In Canada an auxiliary terminal block is fitted during installation). Using the PowerStar WARNING Do not use the unit if you think it may be frozen, as this could result
  • Bosch AE 115 | Handbook - Page 11
    Description (Refer to Diagram 1, Page 4) 4 way term. block (for AE115) 6 way term. block (for AE125) Front cover (white) Thermal cut-out (AE115) Double pole cut-out (AE125) Flow transducer PCB enclosure (lid) PCB enclosure (base) Control PCB (for AE115) Control PCB (for AE125) Adjustment knob O Ring
  • Bosch AE 115 | Handbook - Page 12
    it may be defective and should be replaced. No electricity at the heater or one of the supplies has failed Have a licensed electrician verify proper wiring and adequate voltage on the terminal block inside the water heater. See the "Electrical connections" section on Page 5 of this manual. 12
  • Bosch AE 115 | Handbook - Page 13
    . Refer to Graph 1 for outlet temperature vs. flow rate variance. Water flow is too high Adjust water flow to stay within the water heater's specifications. See Graph 1 on Page 8 of this manual. One or more of the heating module thermal cut-outs has tripped Shut off the power to the unit, remove
  • Bosch AE 115 | Handbook - Page 14
    inlet and outlet shut-off valves at the heater. (if none installed, install before proceeding) • Completely open hot water on the highest flowing hot water fixture served by the heater (i.e. bathtub). • Slowly close the outlet shut-off valve, slowing the water flow rate until the temperature at the
  • Bosch AE 115 | Handbook - Page 15
    to fluctuate. Stay within the heater's specifications. See Graph 1 on page 8. PowerStar LIMITED 10 YEAR WARRANTY COVERAGE BOSCH THERMOTECHNOLOGY CORP. guarantees this water heater to the original owner of the water heater at the original installation location against defects in material and
  • Bosch AE 115 | Handbook - Page 16
    date of original installation of the water heater, Bosch Thermotechnology Corp. will furnish the owner with a replacement of the defective part(s). 3. Verification of Date of Original Installation - When owner cannot verify or document the original date of installation, the warranty period begins on
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