Daikin SERHQ020BAW1 Installer And User Reference Manual
Split packaged air-cooled water chiller
Hide thumbs
Also See for SERHQ020BAW1:
- Installation and operation manual (60 pages) ,
- Installer and user manual (76 pages) ,
- Installation and operation manual (52 pages)
Table of Contents
Troubleshooting
Related Manuals for Daikin SERHQ020BAW1
Summary of Contents for Daikin SERHQ020BAW1
- Page 1 Installer and user reference guide Split packaged air-cooled water chiller SERHQ020BAW1 SERHQ032BAW1 SEHVX20BAW SEHVX32BAW Installer and user reference guide SEHVX40BAW English Split packaged air-cooled water chiller SEHVX64BAW...
-
Page 2: Table Of Contents
Table of contents 6 Installation Table of contents Overview: Installation ..............16 Opening the units ............... 17 6.2.1 About opening the units ..........17 6.2.2 To open the outdoor unit..........17 1 General safety precautions 6.2.3 To open the indoor unit ..........17 About the documentation ............ -
Page 3: General Safety Precautions
1 General safety precautions Switching between cooling and heating ........39 17.2.3 Recommended maintenance and inspection cycles..65 8 Commissioning 18 Troubleshooting Overview: Commissioning............40 18.1 Error codes: Overview..............66 Precautions when commissioning ..........40 19 Relocation Checklist before commissioning the outdoor unit...... 40 Checklist before commissioning the indoor unit ...... -
Page 4: For The User
▪ If you are NOT sure how to operate the unit, contact your installer. comply with applicable legislation (on top of the ▪ This appliance can be used by children aged from 8 years and instructions described in the Daikin documentation). above and persons with reduced physical, sensory or mental CAUTION... -
Page 5: Refrigerant
1 General safety precautions ▪ In places where there is machinery that emits electromagnetic WARNING waves. Electromagnetic waves may disturb the control system, Make sure there is no oxygen in the system. Refrigerant and cause malfunction of the equipment. may only be charged after performing the leak test and the ▪... -
Page 6: About The Documentation
2 About the documentation 1.3.5 Water NOTICE Precautions when laying power wiring: If applicable. See the installation manual or installer reference guide of your application for more information. NOTICE Make sure water quality complies with EU directive 98/83 EC. ▪ Do NOT connect wiring of different thicknesses to the power terminal block (slack in the power wiring may 1.3.6 Electrical... -
Page 7: About The Box
Daikin website (publicly accessible). Hand‑over to the user What to give and explain to the user ▪ The full set of latest technical data is available on the Daikin Maintenance and service How to maintain and service the units extranet (authentication required). -
Page 8: To Handle The Outdoor Unit
3 About the box 3.2.2 To handle the outdoor unit Indoor unit CAUTION 3.3.1 To unpack the indoor unit To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. Remove the packaging material from the unit: ▪... -
Page 9: About The Units And Options
4 About the units and options 3.3.3 To remove the accessories from the 4.2.1 Identification label: Outdoor unit indoor unit Location 1× 1× 1× 8× 2× 1×/2× 1× 1× 2× 2× 3× 2× Model identification Example: SE RH Q 020 BA W1 General safety precautions Code Explanation... -
Page 10: About The Indoor Unit
5 Preparation Leaving water condenser temperature (°C) 4.2.4 About the indoor unit Entering water condenser temperature (°C) Pull up area The SEHVX indoor units are intended for indoor installation and can Standard water operation range be used for air conditioning purposes or for supplying water for process cooling applications. -
Page 11: Preparing The Installation Site
5 Preparation ▪ In heavy snowfall areas, select an installation site where snow will Preparing the installation site not affect the operation of the unit. Seaside installation. Make sure the outdoor unit is NOT directly 5.2.1 Installation site requirements of the exposed to sea winds. -
Page 12: Installation Site Requirements Of The Indoor Unit
Outdoor unit This unit is suitable for installation in a commercial and light industrial environment. ▪ Piping connection sizes Indoor unit Liquid Outdoor unit Liquid SEHVX20BAW Ø25.4 mm Ø12.7 mm 1× SERHQ020BAW1 Ø22.2 mm Ø9.52 mm SEHVX32BAW Ø25.4 mm Ø12.7 mm 1× SERHQ032BAW1 Ø28.6 mm Ø12.7 mm SEHVX40BAW Ø25.4 mm Ø12.7 mm... -
Page 13: About The Piping Length
5 Preparation ▪ Drainage – Low points. Provide drain taps at all low points of the Indoor unit G/G1 L/L1 system in order to allow complete drainage of the water circuit. SEHVX20BAW Ø28.6 mm Ø9.52 mm — — ▪ Non-brass metallic piping. When using non-brass metallic SEHVX32BAW Ø28.6 mm Ø12.7 mm —... -
Page 14: Formula To Calculate The Expansion Vessel Pre-Pressure
5 Preparation ▪ The maximum water piping temperature is 50°C according to INFORMATION safety device setting. The temperature step difference can be modified using ▪ Always use materials which are compatible with the water used in settings [A‑02] and [F‑00]. This has an impact on the the system and with the materials used in the unit. -
Page 15: Changing The Pre-Pressure Of The Expansion Vessel
5 Preparation When multiplying 64 l by the correction factor, we get 224 l, which will be the minimum water volume allowed in the installation if a temperature differential of 1 K is used. Now it is very important to check that for the height difference of the system, the volume in the system is less than the maximum allowed value at that pre-pressure (Pg). -
Page 16: About Electrical Compliance
▪ EN/IEC 61000‑3‑12 provided that the short-circuit power S Outdoor unit Recommended fuses greater than or equal to the minimum S value at the interface SERHQ020BAW1 32 A point between the user's supply and the public system. SERHQ032BAW1 40 A ▪ EN/IEC 61000‑3‑12... -
Page 17: Opening The Units
6 Installation 4× Opening the units 6.2.1 About opening the units At certain times, you have to open the unit. Example: ▪ When connecting the electrical wiring ▪ When maintaining or servicing the unit DANGER: RISK OF ELECTROCUTION Do NOT leave the unit unattended when the service cover is removed. -
Page 18: To Open The Electrical Component Box Of The Indoor Unit
6 Installation Allowed 6.2.5 To open the electrical component box of ▪ The height of the foundation must at least be 150 mm from the the indoor unit floor. In heavy snowfall areas, this height should be increased, depending on the installation place and condition. NOTICE ▪... -
Page 19: Precautions When Mounting The Indoor Unit
6 Installation 6.4.2 Precautions when mounting the indoor unit INFORMATION Also read the precautions and requirements in the following chapters: ▪ General safety precautions ▪ Preparation 6.4.3 To provide the installation structure Attach one L-shaped support to the left side of the top plate using 2 screws from the accessory bag Make sure the unit is installed level on a sufficiently strong base to Attach the other L-shaped support to the right side of the... -
Page 20: To Braze The Pipe End
6 Installation Service port 6.5.2 To braze the pipe end Stop valve cover Hexagon hole NOTICE Shaft Seal Precautions when connecting field piping. Add brazing ▪ Keep both stop valves open during operation. material as shown in the figure. ≤Ø25.4 >Ø25.4 ▪... -
Page 21: To Connect The Refrigerant Piping To The Outdoor Unit
6 Installation 6.5.4 To connect the refrigerant piping to the outdoor unit NOTICE All field piping must be installed by a licensed refrigeration technician and must comply with the relevant local and national regulations. Seal the piping and wiring intake holes using sealing material (field supply), otherwise the capacity of the unit will drop and small animals may enter the machine. -
Page 22: To Connect The Refrigerant Piping To The Indoor Unit
6 Installation NOTICE Precautions when making knockout holes: ▪ Avoid damaging the casing. ▪ After making the knockout holes, we recommend you remove the burrs and paint the edges and areas around the edges using repair paint to prevent rusting. ▪... -
Page 23: Checking The Refrigerant Piping
6 Installation 6.6.2 Precautions when checking the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters: ▪ General safety precautions ▪ Preparation NOTICE Use a 2-stage vacuum pump with a non-return valve that can evacuate to a gauge pressure of − 1 00.7 kPa (−... -
Page 24: To Insulate The Refrigerant Piping
6 Installation 2 Check that, with the vacuum pump turned off, the target WARNING vacuum is maintained for at least 1 hour. ▪ Only use R410A as refrigerant. Other substances may 3 Should you fail to reach the target vacuum within 2 hours or cause explosions and accidents. -
Page 25: To Charge Refrigerant
6 Installation R=(L1+L2) ×0.12 Contains fluorinated greenhouse gases Ø12.7 Liquid pipe of circuit 1 (indoor → outdoor 1) RXXX Liquid pipe of circuit 2 (indoor → outdoor 2) GWP: XXX 6.7.4 To charge refrigerant Pre-charging refrigerant GWP × kg 1000 1 Calculate the additional amount of refrigerant to be added using the formula mentioned in "6.7.3 ... -
Page 26: To Fill The Water Circuit
6 Installation ▪ When using non-brass metallic piping, make sure to insulate both Connecting the electrical wiring materials from each other to prevent galvanic corrosion. ▪ Make sure to provide a proper drain for the pressure relief valve. 6.9.1 About connecting the electrical wiring ▪... -
Page 27: Field Wiring: Overview
6 Installation WARNING NOTICE ▪ After finishing the electrical work, confirm that each ▪ Be sure to install an earth leakage breaker that is electrical component and terminal inside the electrical capable of handling high-frequency electrical noise components box is connected securely. generated by the inverter in order to prevent malfunctioning of the earth leakage breaker. -
Page 28: About The Electrical Wiring
6 Installation To route and fix the power supply of the indoor unit 6.9.4 About the electrical wiring NOTICE ▪ Be sure to keep the power line and transmission line apart from each other. Transmission wiring and power supply wiring may cross, but may not run parallel. ▪... - Page 29 6 Installation Fuse Earth leakage breaker Grounding wire Power supply terminal block Connect each power wire RED to L1, WHT to L2, BLK to L3 and BLU to N Ground wire (GRN/YLW) Clamp the power wire to the plastic bracket using a field supplied clamp to prevent external force being applied to the terminal.
-
Page 30: To Connect The Power Supply And Transmission Cables
6 Installation Indoor unit The wiring for the other systems must be connected to the F1/F2 (Out-Out) terminals of the PCB in the outdoor unit to which the interconnecting wiring for the indoor units is connected. F1F2 Fixing the transmission wiring K1P K1S X4M F1F2 F1F2... -
Page 31: To Install The User Interface
7 Configuration 6.9.9 To install the user interface The unit comes with a user interface offering a user-friendly way to set up, use and maintain the unit. Before operating the user interface, follow this installation procedure. Wire specification Value Type 2 wire CAUTION Section... -
Page 32: Field Setting Components
7 Configuration Pushbuttons and DIP switches LEDs The LEDs give feedback about the field settings, which are defined Item Description as [Mode-Setting]=Value. Pushbuttons By operating the pushbuttons it is possible to: Shows the mode H2P~H7P Shows the settings and values, represented in binary code ▪... -
Page 33: To Access Mode 1 Or 2
7 Configuration 7.2.4 To access mode 1 or 2 What Changing the value of the ▪ Once mode 2 is selected (push BS1 After the unit is turned ON, the display goes to its default situation. selected setting in mode 2 for more than 5 seconds) you can From there, you can access mode 1 and mode 2. -
Page 34: Mode 2: Field Settings
7 Configuration Value / Description Shows the status of power consumption limitation operation. Unit is currently not operating under power consumption limitations. Unit is currently operating under power consumption limitation. Power consumption limitation reduces the power consumption of the unit compared to nominal operating conditions. -
Page 35: Field Settings On The User Interface
7 Configuration Setting Value Description (= binary) Deactivated Refrigerant recovery/vacuuming mode. (default) Activated This is a field setting of the outdoor module. In case of SEHVX40+64BAW, perform the setting on both outdoor modules. In order to achieve a free pathway to reclaim refrigerant out of the system or to remove residual substances or to vacuum the system, it is necessary to apply a setting which will open the required valves in the refrigerant circuit so the reclaim of refrigerant or... - Page 36 7 Configuration After entering the field setting, the selected permission level must be enabled by simultaneously pressing , immediately 22°C 22°C followed by simultaneously pressing . Keep all 4 buttons 21°C 21°C 45°C 45°C pressed for at least 5 seconds. Note that no indication on the user 44°C 44°C 19°C...
- Page 37 7 Configuration 22°C 22°C 21°C 21°C 21°C 45°C 45°C 44°C 44°C 19°C 19°C 19°C 19°C 19°C 19°C 18°C 42°C 42°C 42°C 42°C 42°C 42°C [2-01] [2-02] Normal room temperature setpoint 0:30 6:30 9:00 16:00 Room setback temperature [5-03] Time Temperature Setback configured for leaving water temperature control 18°C 18°C...
- Page 38 7 Configuration [6‑01] Description External room thermostat input 1 = heating operation ON (1)/OFF (0). Lo_Ti External room thermostat input 2 = cooling + 05 operation ON (1)/OFF (0). Shift value Hi_Ti External room thermostat input 1 = operation – 05 ON (1)/OFF (0).
-
Page 39: Switching Between Cooling And Heating
7 Configuration [9‑00] Leaving water temperature compensation value for [E‑03] heating operation This setting is not applicable. [9‑01] Leaving water thermistor auto corrective function [E‑04] Pump only operation (air purge function) This function will take into account the outdoor ambient conditions When installing and commissioning the unit it is very important to and correct the measured value which will be used for the logic. -
Page 40: Commissioning
8 Commissioning CAUTION Do NOT perform the test operation while working on the indoor units. A B C When performing the test operation, NOT only the outdoor unit, but the connected indoor unit will operate as well. Working on an indoor unit while performing a test operation is dangerous. -
Page 41: Checklist Before Commissioning The Indoor Unit
8 Commissioning Fuses, circuit breakers, or protection devices Power supply voltage Check that the fuses, circuit breakers, or the locally Check the power supply voltage on the local supply panel. installed protection devices are of the size and type The voltage MUST correspond to the voltage on the specified chapter "5.5.4 ... -
Page 42: Final Check
8 Commissioning Water leak INFORMATION Check the inside of the unit for water leakage. If there is a During the first start up of the unit (the first 48 hours of water leak, try to repair the leak. If the repair is compressor running), the noise level of the unit may be unsuccessful, close the water inlet and outlet shut-off higher than mentioned in the technical specifications. -
Page 43: Checklist Handover To The User
9 Maintenance and service Main code Cause Solution The stop valve of the outdoor unit is left closed. Open the stop valve on both the gas and liquid side. Refrigerant overcharge. Recalculate the required amount of refrigerant from the piping length and correct the refrigerant charge level by recovering any excessive refrigerant with a refrigerant recovery machine. -
Page 44: To Prevent Electrical Hazards
9 Maintenance and service 1 With the unit at a standstill and setting mode 2 active, set the WARNING required field setting (refrigerant recovery operation/vacuuming ▪ Before carrying out any maintenance or repair activity, operation) (see "7.2.8 Mode 2: Field settings" on page 34) to ALWAYS switch off the circuit breaker on the supply ON (ON). -
Page 45: Troubleshooting
10 Troubleshooting Switch box WARNING Carry out a thorough visual inspection of the switch box and look for If the internal wiring is damaged, it has to be replaced by obvious defects such as loose connections or defective wiring. the manufacturer, its service agent or similarly qualified persons. -
Page 46: 11 Disposal
Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin extranet (authentication required). ▪ Piping diagram 12.1... - Page 47 12 Technical data 766.5 (mm) CAUTION Make sure the right service panel can still be removed after installation of the piping. INFORMATION Further specifications can be found in the technical engineering data. SERHQ020~032BAW1 + SEHVX20~64BAW Installer and user reference guide Split packaged air-cooled water chiller 4P508020-1B –...
-
Page 48: Piping Diagram: Outdoor Unit
12 Technical data 12.4 Piping diagram: Outdoor unit 20 kW 32 kW SENPH SENPH STD1 STD2 SENPL SENPL Check valve Electronic expansion valve Pressure regulating valve Filter Heat exchanger Accumulator 4-way valve High pressure sensor High pressure switch Solenoid valve Compressor Capillary tube Oil separator... -
Page 49: Piping Diagram: Indoor Unit
12 Technical data 12.5 Piping diagram: Indoor unit R11T R14T R12T R13T Air purge valve Temperature sensors (R11T, R12T, R13T, R14T) Expansion vessel (12 l) Shut-off valve (field installed) Water inlet connection Water outlet connection Drain port Water filter Pressure gauge Flow switch Pump Safety valve... -
Page 50: Wiring Diagram: Outdoor Unit
12 Technical data Thermistor (suction) 12.6 Wiring diagram: Outdoor unit Thermistor (coil-deicer) Refer to the wiring diagram sticker on the outdoor unit. The Thermistor (coil-outlet) abbreviations used are listed below: Thermistor (liquid-pipe receiver) INFORMATION Thermistor (accumulator) The wiring diagram on the outdoor unit is only for the Resistor (current sensor) (A4P) (A8P) outdoor unit. -
Page 51: Technical Specifications: Outdoor Unit
12 Technical data User interface PCB Control PCB circuit 1 Demand PCB (optional) Main PCB circuit 2 Demand PCB (optional) Remote user interface PCB (optional) Control PCB circuit 2 C1~C3 Filter capacitor F1U (A*P) Fuse (250 V, 3.15 A, T) HAP (A*P) PCB LED K11E Electronic expansion valve (circuit 1) -
Page 52: Field Settings On The User Interface - Overview
12 Technical data 12.9 Field settings on the user interface – overview 1st code 2nd Setting name Date Value Date Value Default Range Step Unit code value User interface setup User permission level — Room temperature compensation value –5~5 °C Not applicable. - Page 53 12 Technical data 1st code 2nd Setting name Date Value Date Value Default Range Step Unit code value Settings are not applicable Not applicable. Do not change the default value. — — — — — Not applicable. Do not change the default value. —...
-
Page 54: 12.10 Field Settings On The Outdoor Unit
12 Technical data 12.10 Field settings on the outdoor unit Technical specifications Setting Setting contents Contents Factory Selected Date setting condition Low noise/demand setting via external control adapter High static pressure setting Automatic night-time low noise setting Level 1 (outdoor fan with step 6 or lower) Level 2 (outdoor fan with step 5 or lower) -
Page 55: 12.11 Esp Curve: Indoor Unit
13 About the system 12.11 ESP curve: Indoor unit External static pressure (kPa) Water flow (l/min) SEHVX20BAW SEHVX32BAW SEHVX40BAW SEHVX64BAW For the user About the system 13.1 System layout NOTICE Do not use the system for other purposes. In order to avoid any quality deterioration, do not use the unit for cooling precision instruments or works of art. -
Page 56: 14 User Interface
14 User interface WARNING User interface Avoid placing the controller in a place where it can be splashed with water. Water entering the machine may CAUTION cause an electric leak or may damage the internal ▪ NEVER touch the internal parts of the controller. electronic parts. -
Page 57: 16 Operation
Only use a fire. accessories, optional equipment and spare parts made or approved by Daikin. CAUTION This operation manual is for the following systems with standard It is not good for your health to expose your body to the air control. -
Page 58: Operating The System
16 Operation Select mode (heating h or cooling c) Push bi or bj Display: - starts to blink Display: "n" Set desired room temperature The remote controller room (e.g. 22°C) thermostat function is not installed Push ébi or ébj You have "room temperature You have "leaving water temperature based"... -
Page 59: About Operating The System
16 Operation 16.3.2 About operating the system INFORMATION Setback operation and weather dependent setpoint are not If the main power supply is turned off during operation, operation will available in the cooling mode. restart automatically after the power turns back on again. 16.3.4 Space heating operation 16.3.3... -
Page 60: Other Operation Modes
16 Operation 2 Press again to deactivate quiet mode operation. To switch space heating on/off using leaving water temperature control Result: disappears from the display. The actual temperatures can be displayed on the remote controller. In this mode, heating will be activated as required by the water temperature setpoint. - Page 61 16 Operation Space heating based on ON/OFF instruction Space heating based on temperature setpoint During operation When the schedule timer switches space During operation During schedule timer operation the operation heating OFF, the controller will be switched off LED is lit continuously. (operation LED will stop working).
- Page 62 16 Operation 10 Select using to switch cooling and the remote INFORMATION controller off. Space cooling based on temperature setpoint is enabled 11 Repeat this procedure to program the other actions. by default, so only temperature shifts are possible (no ON/ OFF instruction).
- Page 63 16 Operation To program quiet mode INFORMATION Press to return to previous steps in the programming procedure without saving modified settings. 1 Press to enter the programming/consulting mode. 2 Select the operation mode you would like to program using Result: The actual mode is blinking. 3 Press to confirm the selected mode.
-
Page 64: Operating The Optional Demand Pcb
17 Maintenance and service 2 Select the operation mode you would like to consult using 3 Press simultaneously for 5 seconds to delete the selected mode. Result: The actual mode is blinking. To delete a day of the week 3 Press to confirm the selected mode. -
Page 65: About The Refrigerant
18 Troubleshooting 17.2.3 Recommended maintenance and WARNING inspection cycles Never replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out. Use of wire or Be aware that the mentioned maintenance and replacement cycles copper wire may cause the unit to break down or cause a do not relate to the warranty period of the components. -
Page 66: Error Codes: Overview
19 Relocation If the system does NOT properly operate except for the above Main code Contents mentioned cases and none of the above mentioned malfunctions is Low pressure malfunction (indoor unit) evident, investigate the system according to the following Refrigerant suction sensor (indoor unit) procedures. - Page 67 Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with product according instructions accompanying documentation.
- Page 72 4P508020-1B 2018.04...