CONTENTS 1. Preface 2. Specifications 2.1 Technical data for the swimming pool heat pump unit 2.2 Operating range 2.3 Dimensions 3. Installation and connection 3.1 Functional diagram 3.2 Heat pump unit 3.3 Hydraulic connection 3.4 Electrical connection 3.5 Initial start-up 3.6 Water flow setting 4.
1. PREFACE We thank you for purchasing this Hayward swimming pool heat pump unit. This product was designed according to strict manufacturing standards to satisfy the required quality levels. This manual includes all of the necessary information concerning installation, debugging and maintenance. Please attentively read this manual before opening the unit or before carrying out any maintenance operations on it.
2. SPECIFICATIONS (continued) 2.2 Operating range Use the swimming pool heat pump unit within the following ranges of temperature and humidity to ensure safe and efficient operation. Heating mode Cooling mode Outside temperature +2°C ~ +35°C +7°C ~ +43°C Water temperature +12°C ~ +40°C +8°C ~ +40°C Relative humidity...
2. SPECIFICATIONS (continued) 2.3 Dimensions Models: ENP1M/ENP2M Unit: mm Water inlet Water outlet Drainage Frontal view 1025 Overhead view Models: ENP3M/ENP4M/ENP5M Unit: mm ENP4T/ENP5T/ENP6M/ENP6T Water inlet Water outlet Drainage 1140...
3. INSTALLATION AND CONNECTION 3.1 Functional Diagram Filter Water Inlet valve By-pass Pump valve filtration Water outlet Water outlet Chlorinator cell valve Pool (or other treatment) Note: The swimming pool heat pump unit is sold without any treatment or filtration equipment. The components presented in the diagram are spare parts to be supplied by the installer.
3. INSTALLATION AND CONNECTION (continued) It is advised to install the unit on a dissociated cement block or a mounting bracket designed for this use and to set up the unit on the supplied rubber bushing (fastenings and washers not supplied). The maximum installation distance between the unit and the swimming pool is 15 metres.
3. INSTALLATION AND CONNECTION (continued) 3.4 Electrical connection Electrical installation and wiring for this equipment must be in conformity with local installation standards. NF C15-100 BS7671:1992 DIN VDE 0100-702 EVHS-HD 384-7-702 ÖVE 8001-4-702 MSZ 2364-702/1994/MSZ 10-553 1/1990 UNE 20460-7-702 1993, MSA HD 384-7-702.S2 RECBT ITC-BT-31 2002 Wiring Rules + IS HD 384-7-702...
3. INSTALLATION AND CONNECTION (continued) The electrical power supply must have, when appropriate, a fuse protection device like a feed motor (aM) or D curve circuit breaker as well as a differential circuit breaker 30mA (see following table). Models ENP1M ENP2M ENP3M ENP4M...
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3. INSTALLATION AND CONNECTION (continued) 8) Set the water flow using the by-pass valve (see § 3.6 and 2.1), as provided for by each model, to obtain an Entry/Exit temperature of 2°C. 9) After running for several minutes, verify that the air exiting the unit is cool (between 5 and 10°).
3. INSTALLATION AND CONNECTION (continued) 3.6 Water flow setting With the water entry and exit valves being open, adjust the by-pass valve in order to obtain a difference of 2°C between the inflow and outflow temperature (see principle diagram § 3.1). You can verify the switch by seeing the entry/ exit temperatures directly on the control panel.
4. USER INTERFACE 4.1 General presentation The heat pump is equipped with a digital control panel with a touch screen, electronically connected and pre-set at the factory in heating mode. Symbol Cooling Mode Symbol Heating Mode Automatic mode Clock and timer settings MO D E Selection and settings button S E T...
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4. USER INTERFACE (continued) OFF Mode When the heating pump is in sleep mode (OFF Mode) “OFF” is displayed on the command screen. ON Mode When the heating pump is running or regulating (ON Mode), the inlet and outlet water temperatures are displayed on the command screen.
4. USER INTERFACE (continued) 4.2 Clock settings Press 2 times on , the blinking time display then set the time with the arrows then press one more time to set the minutes with the arrows . Press to validate. Note: The settings will be automatically saved if no button is pressed after 5 seconds, if not press to validate.
4. USER INTERFACE (continued) Turn off the Timer (Timer ON and OFF) / Off and On 1) Press 2 seconds, Timer “ON”. 2) Press to delete the programme. 3) Press 2 seconds timer “ON” blinks then press 2 seconds, Timer “OFF” blinks.
4. USER INTERFACE (continued) 4.5 Settings and visualisation from the set point (desired water temperature) In Mode “OFF” and Mode “ON” Press the buttons to define the desired set point. The settings are made with a precision of 0.5 °C. It is recommended to never surpass 30°C to avoid alteration of the liners.
5. MAINTENANCE AND WINTERISING 5.1 Maintenance These maintenance operations must be carried out once per year in order to guarantee the longevity and the good working condition of the heat pump. • Clean the coil with the help of a soft brush or jet of air or water (Warning, never use a high pressure cleaner).
6. APPENDIX 6.1 Electrical diagrams ENP1M Power supply 230V~ / 50Hz 230V~ / 50Hz Enslavement filtration pump, output 230V~, max 20A REMARKS: 8. IT: WATER INLET TEMPERATURE SENSOR 1. AT: AIR TEMPERATURE SENSOR 9. LP: LOW PRESSURE SWITCH 2. COMP: COMPRESSOR 10.
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6. APPENDIX (continued) ENP2M COMP E E V RED BLU G N D O U T 3 O U T 1 O U T 2 G N D O U T 4 P C 1 0 0 0 G N D O U T 5 Power supply 230V~ / 50Hz...
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6. APPENDIX (continued) ENP3M COMP K M 1 E E V K M 1 G N D RED BLU O U T 3 O U T 1 O U T 2 G N D O U T 4 P C 1 0 0 0 G N D O U T 5 Power supply...
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6. APPENDIX (continued) ENP4M COMP K M 1 K M 1 E E V K M 1 G N D O U T 3 O U T 1 O U T 2 G N D O U T 4 P C 1 0 0 0 G N D O U T 5 Power supply...
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6. APPENDIX (continued) ENP5M COMP K M 1 K M 1 E E V K M 1 RED BLU G N D O U T 3 O U T 1 O U T 2 G N D O U T 4 P C 1 0 0 0 G N D O U T 5...
6. APPENDIX (continued) ENP6M KM-6 Soft start COMP-R START COMP-R COMP OUT3 OUT1 OUT2 C2(35uF) OUT4 C1(60uF) OUT5 FILTER AC-N (161~193uF) RED BLU Controller Power supply TO POWER SUPPLY Output 230V~ TO PUMP 230V~ / 50Hz 220-240V~/50Hz Enslavement filtration pump 20A max REMARKS: 8.
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6. APPENDIX (continued) ENP4T/5T R S T N Power supply TO POWER SUPPLY 380V~ / 50Hz 380-415V/3N~/50Hz L1(A) L2(B) L3(C) COMP1 OUT3 OUT1 OUT2 OUT4 Output 230V~ TO PUMP OUT5 Enslavement filtration pump 20A max AC-N Controller REMARKS: 8. KM1: POWER CONTACTOR 1.
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6. APPENDIX (continued) ENP6T R S T N Power supply TO POWER SUPPLY 380V~ / 50Hz 380-415V/3N~/50Hz L1(A) L2(B) L3(C) COMP1 OUT3 OUT1 OUT2 OUT4 Output 230V~ TO PUMP OUT5 Enslavement filtration pump 20A max AC-N Controller REMARKS: 8. IT: WATER INLET TEMPERATURE SENSOR 9.
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6. APPENDIX (continued) 6.2 Heating priority wiring 230V˜ N 50 HZ Ph 1L1 3L2 5L3 13N0 A1 1 15 min / 2 H 2T1 4T2 14N0 Power supply 230V~ / 50Hz Output 230V~ Monophasic pump Enslavement filtration pump 20A max Outside of the filtration range, it is necessary to start a check of the water temperature by regularly starting the filtration pump (15...
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6. APPENDIX (continued) 6.3 Heating priority wiring for three phases pump 380V˜ 50 HZ 1L1 3L2 5L3 13N0 A1 1 15 min / 2 H 2T1 4T2 14N0 = = = = Power supply 380V~ / 50Hz Three phases Output 230V~ pump Enslavement filtration pump 20A max...
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6. APPENDIX (continued) ENP3M Mark Ref. Description Mark Ref. Description HWX340621049 Fan protection grille HWX20003603 Low pressure switch HWX20002705 Fan blade HWX20003242 Air temperature sensor HWX20013328 Fan motor HWX351212001 Fin coil HWX320922015 Front panel HWX320921021 Electrical box cover HWX320921025 Support panel HWX320822008 Protection cover HWX320921092 Fan motor bracket...
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6. APPENDIX (continued) ENP6T Mark Ref. Description Mark Ref. Description Teminal block 5 HWX200022068 Protection cover HWX20003902 connections Tri Coil Temperature HWX950531152 LCD Controller HWX20003242 sensor HWX340621049 Fan protection grille HWX950531145 PCB Board HWX20003242 Ambient sensor HWX200036005 Flow switch HWX320922015 Front panel HWX20003242 Water inlet Sensor HWX200036023 Phase controller HWX20003242 Water outlet sensor...
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6. APPENDIX (continued) 6.4 Troubleshooting guide Certain operations must be carried out by an authorized technician. Problem Error codes Description Solution The sensor is open or presents Water inlet sensor defect. Verify or replace the sensor. a short-circuit. The sensor is open or presents Water outlet sensor defect.
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