Daikin SERHQ020BAW1 Installation And Operation Manual
Split packaged air-cooled water chiller
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Summary of Contents for Daikin SERHQ020BAW1
- Page 1 Installation and operation manual Split packaged air-cooled water chiller SERHQ020BAW1 SERHQ032BAW1 SEHVX20BAW SEHVX32BAW Installation and operation manual SEHVX40BAW English Split packaged air-cooled water chiller SEHVX64BAW...
- Page 2 2PW40200-18W...
- Page 3 2PW40200-18W...
- Page 4 3PW57792-14H...
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Page 5: Table Of Contents
Table of contents Connecting the water piping............22 Table of contents 5.7.1 To connect the water piping......... 22 5.7.2 To fill the water circuit ..........22 5.7.3 To insulate the water piping ......... 23 Connecting the electrical wiring..........23 1 About the documentation 5.8.1 Field wiring: Overview.......... -
Page 6: About The Documentation
Authorised installers + end users ▪ 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). For the installer... -
Page 7: Indoor Unit
3 About the units and options ▪ In cooling mode, the refrigerant transports the heat taken from the Indoor unit water heat exchanger to the air heat exchanger where the heat is released to the air. 2.2.1 To remove the accessories from the ▪... -
Page 8: Preparation
4 Preparation Indoor unit CAUTION Plate heat exchanger Pump Appliance NOT accessible to the general public, install it in Expansion vessel a secured area, protected from easy access. Shut-off valve Motorized valve This unit is suitable for installation in a commercial and Bypass valve light industrial environment. -
Page 9: Installation Site Requirements Of The Indoor Unit
4 Preparation NOTICE This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. CAUTION Appliance NOT accessible to the general public, install it in a secured area, protected from easy access. -
Page 10: About The Piping Length
4 Preparation Outdoor unit ▪ 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 2× SERHQ020BAW1 Ø22.2 mm Ø9.52 mm SEHVX64BAW Ø25.4 mm Ø12.7 mm 2× SERHQ032BAW1 Ø28.6 mm... -
Page 11: Preparing Electrical Wiring
5 Installation INFORMATION Multi units are standard combinations. Outdoor unit Recommended fuses SERHQ020BAW1 32 A SERHQ032BAW1 40 A Indoor unit Recommended fuses SEHVX20BAW 6 A SEHVX32BAW 10 A SEHVX40BAW SEHVX64BAW Water volume correction factor Temperature differential (K) NOTICE When multiplying 64 l by the correction factor, we get 224 l, which... -
Page 12: To Open The Indoor Unit
5 Installation Once the front plates open, the electrical component box can be accessed. See "5.1.4 To open the electrical component box of the outdoor unit" on page 12. For service purposes, the pushbuttons on the main PCB need to be accessed. To access these pushbuttons, the electrical component box cover does not need to be opened. -
Page 13: To Provide Drainage
5 Installation NOTICE ▪ When the installation height of the unit needs to be increased, do NOT use stands to only support the corners. ▪ Stands under the unit must be at least 100 mm wide. ▪ The unit must be mounted against the wall. Not allowed Allowed ▪... -
Page 14: Connecting The Refrigerant Piping
5 Installation Connecting the refrigerant piping 5.4.1 Using the stop valve and service port To handle the stop valve Take the following guidelines into account: ▪ The stop valves are factory closed. ▪ Always use a charge hose equipped with a valve depressor pin, ▪... - Page 15 5 Installation WARNING Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks: ▪ Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency. ▪ Toxic gas may be produced if refrigerant gas comes into contact with fire.
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Page 16: To Connect The Refrigerant Piping To The Indoor Unit
5 Installation ▪ First cut off the refrigerant liquid piping inside the unit approximately 7 cm before the clamp and the refrigerant gas piping 4 cm before the clamp. This is necessary in order to avoid the piping cutter tool from interfering with the piping. Remove any burrs from the piping. -
Page 17: Checking The Refrigerant Piping
5 Installation ▪ Reinforce the insulation on the refrigerant piping according to the Checking the refrigerant piping installation environment. Ambient Humidity Minimum thickness 5.5.1 Checking refrigerant piping: Setup temperature ≤30°C 75% to 80% RH 15 mm >30°C ≥80% RH 20 mm Condensation might form on the surface of the insulation. ▪... -
Page 18: To Determine The Additional Refrigerant Amount
5 Installation R=(L1+L2) ×0.12 WARNING Ø12.7 ▪ Only use R410A as refrigerant. Other substances may 5.6.4 To charge refrigerant cause explosions and accidents. Pre-charging refrigerant ▪ R410A contains fluorinated greenhouse gases. Its global warming potential (GWP) value is 2087.5. Do 1 Calculate the additional amount of refrigerant to be added using NOT vent these gases into the atmosphere. - Page 19 5 Installation Result: If the temperature is outside the temperature range, Depending on the ambient limitation conditions (see above), the unit press BS1 once and complete refrigerant charging at another will automatically decide which operation mode will be used to fulfill time when the temperature is within range.
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Page 20: Error Codes When Charging Refrigerant
5 Installation Step 6b: To manually charge refrigerant 4 When the calculated amount of refrigerant minus 10 kg is reached, close valve A and press BS3 once. Manual refrigerant charging with the unit at a standstill 1 Calculate how much refrigerant is to be added using the formula explained in "5.6.3 ... -
Page 21: Final Adjustment Of The Refrigerant Amount
5 Installation Result: After operating for 40 minutes, operation will stop Error code Solution automatically. ▪ Close valve A immediately. Check following items: 6 After the system has stopped operating, check the user charging ▪ Is the gas side stop valve opened correctly? interface display. -
Page 22: Checks After Charging Refrigerant
5 Installation Value number Weight (kg) LEDs Connecting the water piping 70≤x<75 75≤x<80 5.7.1 To connect the water piping 80≤x<85 Water connections must be made in accordance with all applicable 85≤x<90 legislations and the outlook drawing delivered with the unit, respecting the water inlet and outlet. -
Page 23: To Insulate The Water Piping
5 Installation To route and fix the power supply of the indoor unit NOTICE Make sure water quality complies with EU directive 98/83 EC. INFORMATION The unit may dispose of some excessive water through the pressure relief valve. 5.7.3 To insulate the water piping The complete water circuit, inclusive all piping, must be insulated to prevent condensation during cooling operation and reduction of the heating and cooling capacity as well as prevention of freezing of the... - Page 24 5 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.
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Page 25: To Connect The Power Supply And Transmission Cables
5 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 26: To Install The User Interface
6 Configuration 5.8.6 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 27: Field Setting Components
6 Configuration Mode 1 and 2 Description H1P H2P H3P H4P H5P H6P H7P Mode Description Setting 8 Mode 1 Mode 1 can be used to monitor the current (in mode 2) situation of the outdoor unit. Some field setting (monitoring (H2P~H7P = binary 8) contents can be monitored as well. -
Page 28: To Use Mode 1
6 Configuration 6.1.7 Mode 1: Monitoring settings Outdoor unit In mode 1 (and in default situation) you can read out the following information: If the default situation is not displayed after 10~12 minutes, check the malfunction code. Solve the malfunction code accordingly. Value / Description The HAP LED flashes to indicate normal microcomputer operation. -
Page 29: Mode 2: Field Settings
6 Configuration 6.1.8 Mode 2: Field settings Press the BS2 button to make field settings to configure the system. The LEDs give a binary representation of the setting/value number. Setting Value Description (= binary) Deactivated. Fan high static pressure setting. (default) Activated. - Page 30 6 Configuration 6 Repeat the previous steps to change other field settings as required. 7 When finished, press to exit the field setting mode. INFORMATION ▪ Changes made to a specific field setting are only stored when is pressed. Navigating to a new field setting code or pressing will discard any changes.
- Page 31 6 Configuration Space heating based on ON/OFF instruction Space heating based on temperature setpoint Press The schedule timer for space heating will stop During operation During schedule timer operation the operation (when active at that moment) and will start LED is lit continuously. again at the next scheduled ON function.
- Page 32 6 Configuration The setback function provides the possibility to lower the room It is advised to use the weather dependent setpoint because it temperature. It can be activated e.g. during the night, because adjusts the water temperature to the actual needs for space heating. temperature demands during night and day are not the same.
- Page 33 6 Configuration The compensated temperature (= measured temperature plus [6‑01] Description compensation value) is then used to control the system and will be 0 (default) External room thermostat not installed. displayed in the temperature read-out mode. External room thermostat input 1 = heating [9‑00] Leaving water temperature compensation value for operation ON (1)/OFF (0).
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Page 34: Using The Leak Detection Function
6 Configuration [E‑02] Display Steps This setting is not applicable. Leak detection operation is finished If the indoor temperature is too low, first the heating [E‑03] operation will start. This setting is not applicable. If the indoor temperature is lower than 15°C due to leak detection operation and the outdoor temperature is lower [E‑04] Pump only operation (air purge function) than 20°C, the heating operation will start to maintain basic... -
Page 35: Commissioning
7 Commissioning ▪ Cooling: voltage free contact between terminals A and C is Checklist before commissioning open the outdoor unit ▪ Heating: voltage free contact between terminals A and C is closed After the installation of the unit, first check the following items. Once all below checks are fulfilled, the unit MUST be closed, ONLY then can the unit be powered up. -
Page 36: Checklist Before Commissioning The Indoor Unit
7 Commissioning Power supply wiring and transmission wiring Pump rotation direction Use a designated power supply and transmission wiring If the 3-phase power input to the indoor unit is not and make sure that it has been carried out according to correctly wired (X1M), the pump may rotate in the wrong the instructions described in this manual, according to the direction. -
Page 37: Final Check
7 Commissioning ▪ Piping length Final check This checking operation takes ±30 minutes to complete. Before switching on the unit, read the following recommendations: Check operation procedure ▪ When the complete installation and all necessary settings have 1 Close the electrical component box lid and all front panels been carried out, be sure that all panels of the unit are closed. -
Page 38: Correcting After Abnormal Completion Of The Test Run
8 Troubleshooting The test operation is only completed if there is no malfunction code Correcting after abnormal displayed on the user interface or the H2P LED is not lit. completion of the test run 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. -
Page 39: Error Codes Of The Outdoor Unit
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). Service space: Outdoor unit... -
Page 40: Service Space: Indoor Unit
9 Technical data Layout A+B+C+D Possibility 1 Possibility 2 a≥10 mm a≥50 mm a≥200 mm b≥300 mm b≥100 mm b≥300 mm c≥10 mm c≥50 mm d≥500 mm d≥500 mm a≥10 mm a≥50 mm a≥200 mm b≥300 mm b≥100 mm b≥300 mm c≥10 mm c≥50 mm d≥500 mm d≥500 mm 766.5 e≥20 mm e≥100 mm e≥400 mm a≥10 mm a≥50 mm — (mm) b≥300 mm b≥100 mm CAUTION c≥10 mm c≥50 mm Make sure the right service panel can still be removed after... -
Page 41: Piping Diagram: Outdoor Unit
9 Technical data 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 Low pressure sensor... -
Page 42: Piping Diagram: Indoor Unit
9 Technical data 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 43: Wiring Diagram: Outdoor Unit
9 Technical data Wiring diagram: Outdoor unit Refer to the wiring diagram sticker on the outdoor unit. The Thermistor (suction) abbreviations used are listed below: Thermistor (coil-deicer) INFORMATION Thermistor (coil-outlet) The wiring diagram on the outdoor unit is only for the Thermistor (liquid-pipe receiver) outdoor unit. -
Page 44: Wiring Diagram: Indoor Unit
10 About the system Wiring diagram: Indoor unit Refer to the wiring diagram sticker on the indoor unit. The K11E Electronic expansion valve (circuit 1) abbreviations used are listed below: K21E Electronic expansion valve (circuit 2) L1,L2,L3 Live Pump contactor Neutral Pump overcurrent relay Field wiring... -
Page 45: 11 User Interface
11 User interface Bypass valve Operation lamp FC1…3 Fancoil unit (field supply) ON/OFF button User interface RT1…3 Room thermostat Operation User interface 12.1 Operation range CAUTION Use the system in the following temperature ranges for safe and ▪ NEVER touch the internal parts of the controller. effective operation. -
Page 46: Operating The System
12 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 47: About Operating The System
12 Operation 12.3.2 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. 12.3.4 Space heating operation 12.3.3... -
Page 48: Other Operation Modes
12 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 49 12 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 50 12 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 51 12 Operation INFORMATION To program quiet mode 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 52 13 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 53 14 Troubleshooting WARNING 13.2.3 Recommended maintenance and 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 54 14 Troubleshooting Malfunction Measure Malfunction Measure If a safety device such as a fuse, a Turn OFF the main power The system operates ▪ Check if air inlet or outlet of outdoor or breaker or an earth leakage breaker switch. but cooling or heating indoor unit is not blocked by obstacles.
- Page 55 15 Relocation Main code Contents Type connection problem (indoor unit) Auto address malfunction (inconsistency) (indoor unit) Relocation Contact your dealer for removing and reinstalling the total unit. Moving units requires technical expertise. Disposal This unit uses hydrofluorocarbon. Contact your dealer when discarding this unit.
- Page 60 4P508019-2 B 0000000 4P508019-2B 2018.01...