Table of Contents
Summary of Contents for KRS KRS118B
- Page 1 Installation and Operation Manual Air Source Heat Pump Water Heater Do not operate this water heater without reading the Manual. If the power cord is damaged, it must be replaced by a qualified person in order to avoid danger.
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Page 2: Table Of Contents
Table of Contents 1. Safety instructions 2. Product description 2.1 Product features 2.2 Working mode 2.3 Product appearance 3. Storage, handling, transportation and installation 3.1 Storage and transportation 3.2 Handling 4. Installation 4.1 Placement space requirements 4.1.1 Installation location and space requirements 4.1.2 Electrical requirements 4.2 Installation method 4.2.1 Equipment fixation... - Page 3 5. Operating instructions 5.1 Precautions for use 5.2 Safety warning 5.3 Operating instructions 5.3.1 Start-up & Shutdown operation 5.3.2 Temperature setting 5.3.3 Working mode setting 5.3.4 Time setting 5.3.5 Timing setting 5.3.6 Manual forced defrosting 5.3.7 Manual start of auxiliary electric heater 5.3.8 Manual forced start of circulating pump 5.3.9 Child lock function 5.3.10 Screen protection function...
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Page 4: Safety Instructions
1. Safety instructions The warnings in the manual are marked with a triangular warning sign. Failure to comply with these warnings may result in serious consequences or even death. Warnings This water heater is not suitable for water heating in swimming pools. The water heater should be placed where it won’t damage the adjacent area or underlying structure of the heat pump water heater even if there is leak at the water heater or the joint. - Page 5 Risk of electric shock: Please turn off the power before performing equipment repairs. Failure to do so may result in serious personal injury or death. When the circuit board, controller or display is repaired, all wires shall be first labeled and then disconnected.
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Page 6: Product Description
Prevent the risk of scald by high-temperature water: In order to prevent scalds caused by excessively high water temperature, we recommend installing a temperature limiter at the junction of the hot water pipe and the sanitary water outlet (i.e the toilet and bathroom). This will keep the water temperature at the outlet below 50 °C, which can reduce the risk of scalds. -
Page 7: Working Mode
Warnings The cause of abnormal high water temperature must be investigated by a qualified service technician and corrective measures must be taken before the water heater is restarted. Automatic defrosting In the operating state of heat pump, the equipment will automatically defrost to ensure thermal efficiency. Water temperature or pressure protection For your safety, the equipment is equipped with a P/T valve. -
Page 8: Product Appearance
2.3 Product appearance [1] Air inlet [2] Air outlet [3] Water tank [4] Foot 3. Storage, handling, transportation and installation 3.1 Storage and transportation As a rule, the equipment should be packed erectly and the water tank be stored or transported as an empty water tank. -
Page 9: Installation
For handling, it must be noted that the maximum allowable tilt angle cannot exceed 15°. If tilting cannot be avoided during handling and transportation, the equipment can only be operated one hour after being moved to the final vertical position. Warnings Damage during transportation! ... -
Page 10: Installation Location And Space Requirements
Warning P/T valve coming with the equipment must be installed and the valve outlet must not be blocked, as this may be dangerous. 4.1.1 Installation location and space requirements The water heater shall be installed in a clean place that is as close as possible to the area with the maximum hot water demand. -
Page 11: Electrical Requirements
Warning The water heater should not be installed in areas with corrosive atmospheres (such as the areas for storing chemicals and flammable liquids, or releasing aerosols). When using this water heater, these corrosive, flammable vapors may be brought out from the storage area due to convection of air in the room or other confined space. -
Page 12: Installation Method
4.2 Installation method 4.2.1 Equipment fixation Remove the package and external protective packaging Pick up the water heater from the base Align the water heater with the mounting position correctly Note: In order to ensure trouble-free operation, the equipment must be installed vertically and the installation tilt angle should not exceed 1°. - Page 13 Water injection into water tank Warning Damage to the water heater First inject cold water into the tank before the commissioning of the equipment. Open the water outlet connection and one or more hot water taps. Open the cold water inlet of the storage tank, start injecting water into the water tank. ...
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Page 14: Condensate Drain Pipe
4.2.3 Condensate drain pipe This water heater has an integrated condensate water pan. The water collected in the water pan is drained from the drain hole at the back of the water heater and its connected hose. Connect one end of the condensate drain pipe to the drain hole on the back of the water heater. ... -
Page 15: Thermal Expansion Tank (Not Provided)
Never block or seal the P/T valve or its drain outlet for any reason. If the P/T valve is changed arbitrarily or not installed in accordance with the instruction manual, the warranty will be invalid. It is recommended to connect a hose from the P/T valve outlet to the floor drain or a suitable drain device so that the drained water will not touch any electrical part, person or animal, thus eliminating any other possible risks. -
Page 16: Installation Check Points
4.3 Installation check points 4.3.1 Water tank position The installation space must be at least 3mx3m x 2.5m (22.5m3). If it can not be satisfied, window- blinds or similar ventilation devices are required. The air inlet and outlet of the water heater shall be 1000mm away from the wall at least. ... -
Page 17: Operating Instructions
Time Heat Pump Notes 0---110 seconds The water heater is with no action 110---170 seconds Solenoid valve opens Prevent compressor from damage. 170---180 seconds Fan starts 180 seconds later Compressor starts High-efficient heat pump heating. The ambient temperature range for heat pump operation is -5 °C ~ 43 °C. If the ambient temperature is outside this range, the heat pump will not operate and the auxiliary electric heating will start to heat the water instead of the heat pump. -
Page 18: Start-Up & Shutdown Operation
5.3.1 Start-up & Shutdown operation When the controller is powered on for the first time, it defaults to be shutdown. Start-up: Press the “ON/OFF” button to start it up when it is at the state of shutdown. Shutdown: Press the “ON/ OFF” button to shut it down when it is at the state of start-up. 5.3.2 Temperature setting ... -
Page 19: Time Setting
ECO mode: When it is in the timing period, press the automatic mode to control the operation; when it is not in the timing period, the system will stand by. 5.3.4 Time setting Press the “Timing” button to enter the time setting and the “hour” flashes. ... -
Page 20: Child Lock Function
5.3.9 Child lock function Press and hold the “ON/OFF” button for 3s to enter the lock state, and then press and hold the “ON/OFF” button for 3s to release the lock. 5.3.10 Screen protection function It will enter the screen protection state if it is not operated for F63 seconds, the big “88” displays the temperature of the water tank, the “ON/OFF”... -
Page 21: Inspection Items
6.2 Inspection items 6.2.1 P/T valve The lever handle of the valve should be lifted and released at least once every 6 months to ensure flexible operation of the valve. A few liters of water shall be allowed to drain from the valve so as to flush the valve body, but the drained water should be connected to an external drain pipe to flow to the floor drain. -
Page 22: Holiday And Long-Time Shutdown
Discharge water from the drain outlet, where a large amount of water will be drained. To ensure proper drainage, the following points need to be noted: Close all hot water taps. Isolate cold water supply. Remove the cold water inlet connection until the drain is stopped. ... -
Page 23: Check/Replacement Of Magnesium Anode Rod
If necessary, please contact an authorized person to inspect and replace the magnesium anode rod. 6.7 Check/Replacement of magnesium anode rod The tank of the water heater shall be protected against corrosion by an internal magnesium anode rod. Warning Damage caused by the water heater operation without the protection of magnesium anode rod is not covered by our warranty. -
Page 24: Environmental Protection
Abnormal conditions Warning code Action Recovery mode Low-voltage warning Stop heating Automatic or manual, settable (F51, F52) Upper water temperature probe failure Stop heating Automatic or manual, settable (F54, F55) Lower water temperature probe failure Stop heating Automatic recovery Coil probe failure Automatic recovery Exhaust probe failure Automatic recovery...
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