User manual BOSCH GWH 715 ES

[. . . ] GWH 715 ES (GWH 715 CTDR EFS) Temperature Modulated with Electronic Ignition Suitable for heating potable water only - Not approved for space heating purposes (Intended for variable flow applications) GWH 715 ES - Natural Gas GWH 715 ES - Liquefied Petroleum (LP) Gas Warning: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. For assistance or additional information consult a qualified installer, service agency or the gas supplier. [. . . ] B Do not touch any electric switch; do not use any phone in your building. If control switch is jammed, close the gas supply and call a qualified service technician. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water. 46 Setting the water temperature The desired temperature of the hot water can be adjusted on the front control panel of the heater. The GWH 715 ES has an electronically controlled gas valve that modulates the burner input in response to both varying hot water flow rates and/or changes in any incoming and outgoing water temperatures. Note: The water heater, running at minimum BTU, may still achieve temperatures above the desired set temperature. Low flowing fixtures are the leading cause of this type of temperature overshoot. To combat this symptom, clean fixtures or replace with higher flowing ones. Solar mode The water heater will not ignite if inlet water temperature exceeds the set temperature on the appliance. In this condition, the solar mode indicator will show on the LCD display. 43, page 26. 5. 3 On Power B To start the appliance press the On/Off button. Fig. 45 Off B To shut down the appliance press the On/Off button again. Fig. 47 6 720 608 158 27 Operation instructions 5. 5 Use of optional remote control accessory (part no. 51 Reset button If the problem persists, contact your installer. 5. 8 Fig. 71, component 13) and the temperature selector buttons on the front of the water heater operate identically. 71, component 16) is required when programming the remote control with this heater. Program button Program button can be used on the appliance and in the remote control. Programming "Program" function Programming actions are similar for both controls (appliance control pad and wireless remote control). i 5. 6 NOTE: up to 6 remote controls can be programmed for one single water heater, each with a range distance of 98 ft (30 m). Operation Fig. 52 "Program" key Memorizing selected temperature B Press buttons memorized. or to select temperature to be B When a hot water tap is opened, main burner ignites and LCD displays the symbol . B Hold "Program" button for 3 seconds to save temperature. Using "Program" function In order to select memorized temperature B Press "Program" key. LCD shows pre-memorized temperature, which is now the hot water selected temperature. 5. 7 Reset button If the LCD shows the error symbol do not shut off power or unplug the heater. See the error code on LCD and consult "Troubleshooting" section. 5. 9 Locked condition This condition is only valid for appliances with one or more remote controls installed. Fig. [. . . ] BBT North America (BBTNA) will furnish a replacement heat exchanger and will furnish a replacement of any other part which fails in normal use and service within the applicable periods specified below, in accordance with the terms of this warranty. The BBTNA replacement will be warranted for the unexpired portion of the original warranty. This warranty will be valid only for water heaters in possession of the original purchaser as recorded on the warranty card. The Heat Exchanger If the heat exchanger fails within Fifteen (15) years after the original installation and operation, BBTNA will furnish a replacement heat exchanger. [. . . ]