Related Manuals for AXEN AXHW-20a-200L
Summary of Contents for AXEN AXHW-20a-200L
- Page 1 Sanitary Water Heat Pump ‐ Operation and Installation Manual - AXHW-20a/200L；AXHW-20a/250L；AXHW-20a/300L...
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Page 2: Table Of Contents
TABLE OF CONTENT INTRODUCTION................................2 This manual.................................2 The unit................................2 SAFETY INSTRUCTIONS............................3 Warning................................3 Caution.................................5 ITEMS INSIDE PRODUCT BOX..........................6 OVERVIEW OF THE UNIT............................7 Parts and descriptions............................7 Dimensions................................. 8 How to replace the magnesium stick......................9 Schematic overview of the water and refrigeration circuit................9 INSTALLATION.................................10 Transportation..............................10 Required service space...........................11... -
Page 3: Introduction
INTRODUCTION This manual This manual includes the necessary information about the unit. Please read this manual carefully before you use and maintain the unit. The unit The hot water heat pump is one of the most economical systems to heat the water for family domestic use. -
Page 4: Safety Instructions
Multiple Functions The special design of the air inlet and outlet makes the unit suitable for various ways of connections. With different ways of installation, the unit can work as just a heat pump but also as a fresh air blower, a dehumidifier, or an energy recovery device. - Page 5 Be sure to use the provided or specified parts for the installation work. The use of defective parts could cause an injury due to possible fire, electric shocks, the unit falling etc. Perform the installation securely and please refer to the installation instructions. Incorrect installation could cause an injury due to possible fire, electric shocks, the unit falling, leakage of water etc.
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Page 6: Caution
Caution Do not install the unit in a place where there is a chance of flammable gas leaks. If there is a gas leak and gas accumulates in the area surrounding the unit, it could cause an explosion. Perform the drainage/piping work according to the installation instruction. If there is a defect in the drainage/piping work, water could leak from the unit and household goods could get wet and be damaged. -
Page 7: Items Inside Product Box
ITEMS INSIDE PRODUCT BOX Before starting the installation, please make sure that all parts are found inside the box. The Unit Box Item Image Quantity Domestic hot water heat pump Operation and Installation Manual... -
Page 8: Overview Of The Unit
OVERVIEW OF THE UNIT Parts and descriptions... -
Page 9: Dimensions
Dimensions Model: AXHW-20a/*** 200L 250L 300L Φ560 Φ640 Φ640 Φ177 Φ177 Φ177 1185 1070 1280 1030 1750 1633 1845 1025 1130 32.5 32.5 32.5 1135 1020 1230 Remark: 1) The extra heat source is optional. 2) The Magnesium stick is an anti-corrosion element. It is assembled in the water tank to avoid the... -
Page 10: How To Replace The Magnesium Stick
creation of fur around the inside tank and to protect the tank, and other components. It can help to extend the life-span of the tank. Check the magnesium stick every half year and change it if it has been used out！ How to replace the magnesium stick Turn the power of the unit ‘OFF’... -
Page 11: Installation
INSTALLATION Asked your supplier to install the unit. Incomplete installation performed by yourself may result in a water leakage, electric shock, or fire. Indoor installation is highly recommended. It is not allow to install the unit at outdoor or rain achieving place. The installation place without direct sunlight and other heat supplies is recommended. -
Page 12: Required Service Space
Required service space Below you will find the minimum space required to be able to complete service and maintenance tasks on the units. Note: If air inlet and/or outlet pipes are connected, portion airflow and capacity in heat pump unit will lose. -
Page 13: Installation Overview
Installation overview Note: Solar heat exchange coil is optional. ATTENTION: The one-way safety valve must be installed. If not, it could cause damage to the unit, or even hurt people. The set point of this safety valve is 0.7 MPa. For the installation place please refer to the pipeline connection sketch. - Page 14 The water may drip from the discharge pipe of the one-way safety valve and that this pipe must be left open to the atmosphere. The one-way safety valve is to be operated regularly to remove lime deposits and to verify that it is not blocked.
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Page 15: Installation Positions
Installation positions (1) Waste heat can be useful heat Units can be installed near the kitchen, in the boiler-room or the garage, basically in every room which has a large number of waste-heat so that the unit has the higher energy efficiency even with very low outside temperatures during the winter. -
Page 16: Water Loop Connection
Water loop connection Please pay attention to the below points when connecting the water loop pipe: 1. Try to reduce the water loop resistance 2. Make sure there is nothing in the pipe and the water loop is smooth, check the pipe carefully to see if there is any leak, and then pack the pipe with the insulation. -
Page 17: Wire Connection
Wire connection • The specification of the power supply wire is 3*1.5 mm². • Fuse specification is T 3.15A 250V • There must be a switch when connecting the unit to the power system. The current of the switch is 10A. •... -
Page 18: Operation The Unit
OPERATION THE UNIT User interface and operation Electrical heater Set button ‘ON’/’OFF’ button Unit ‘ON’/’OFF’ button Clock/Timer setting button UP adjust button DOWN adjust button Operations 1. Power ‘ON’ When turning ‘ON’ the power, whole icons are displayed on the controller screen for 3 seconds. After checking if everything is ok, the unit enters into the standby mode. - Page 19 buttons These are the multi-purpose buttons. They are used for the temp setting, parameter setting, ‐ parameter checking, clock adjustment and adjustment of the timer. During running status, press button to adjust the setting temperature directly. ‐ Press these buttons when the unit is on clock setting status, the hour(s) and the minute(s) of ‐...
- Page 20 NOTE: 1) The timer ‘ON’ and timer ‘OFF’ functions can be set at the same time. 2) The timer settings are repeating. 3) The timer settings are still valid after a sudden power cut. 6． button 1) When the heat pump is ON, press this button to turn ‘ON’ the electrical heater. The heater icon will be showed, and the electrical heater will work according to the control program (parameter 3).
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Page 21: Lcd Icons
LED icons 1. Hot water available The icon indicates that the domestic hot water temperature reaches the set point. The hot water is available for use. Heat pump is standby. 2. Fan ventilation The icon indicates that the fan ventilation function is enabled. When the unit is on, press the button and hold it for 5 seconds the fan ventilation function can be enabled or disabled. - Page 22 8. Right temperature display The display shows the current downside temperature of the water tank. When checking or adjusting the parameters, this section will display the related parameter value. In case any malfunction occurs, this section will display the related error code. 9.
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Page 23: Parameter Checking And Adustment
PARAMETER CHECKING AND ADUSTMENT Parameter list Some parameters can be checked and adjusted by the controller. Below is the parameter list. Parameter Description Range Default Remarks Tank water setting temp. 10 ~ 70°C 50°C Adjustable Inlet/Outlet water temp 2 ~ 15°C 5°C Adjustable difference... -
Page 24: Malfunctioning Of The Unit And Error Codes
Malfunctioning of the unit and error codes When an error occurs or the protection mode is set automatically, the circuit board and the wired controller will both display the error message. Protection/ Error Possible reasons Corrective actions Malfunction code indicator Standby Dark Normal... - Page 25 Protection/ Error Possible reasons Corrective actions Malfunction code indicator 1) Too low air inlet temp 1) Check if the air inlet temp is electronic over the working limited expansion valve Replace electronic assembly blocked expansion valve assembly ☆☆☆☆☆ pressure 3) Too less refrigerant 3) Charge some refrigerant ☆☆●...
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Page 26: Maintenance
MAINTENANCE Maintenance activities In order to ensure an optimum operation of the unit, a number of checks and inspections on the unit and the field wiring have to be carried out at regular intervals, preferably yearly. Check the water supply and air vent frequently, to avoid lack of water or air in the water loop. Clean the water filter to keep a good water quality. -
Page 27: Troubleshooting
TROUBLESHOOTING This section provides useful information for diagnosing and correcting certain troubles which may occur. Before starting the troubleshooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring. Before contacting your local dealer, read this chapter carefully, it will save you time and money. -
Page 28: Wiring Diagram
WIRING DIAGRAM Please refer to the wiring diagram on the electric box. -
Page 29: Technical Specification
TECHNICAL SPECIFICATION AXHW-20a/*** TECHNICAL DATA (AXHW-20a/***) 200L 250L 300L Power supply V/Ph/Hz 220-240/1/50 Water tank Volume Max power input 700+1600 (e-heater) Max current 3.2 +6.8 (e-heater) Max.outlet water °C temperature range(without using E-heater) Max. water temperature °C Min. water temperature °C Ambient working temp. - Page 30 Net Dimensions φ560x1750 φ640x1633 φ640x1845 Packing Dimensions 615x615x1870 695x695x1753 695x695x1965 Net Weight Weight with full water Gross Weight Noise level dB (A) NOTES: * During disinfection, the max water temp could be up to 70°C by electrical heater...
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Page 31: Temperature Sensor R-T Conversion Table
TEMPERATURE SENSOR R-T CONVERSION TABLE Ｒ25= 5.0KΩ±1.0％ Ｂ25-50 = 3470K±1.0％ Rmax/ Rmin /KΩ KΩ Rmax/ ℃ ℃ Rmin /KΩ KΩ Rmax/ KΩ ℃ Rmin KΩ /KΩ KΩ KΩ 36.195 37.303 38.441 5.779 5.847 5.914 1.343 1.374 1.406 34.402 35.437 36.499 5.558 5.62 5.683...
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