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INSTALLATION
EN
INSTRUCTIONS
MANUALE
IT
D'INSTALLAZIONE
NOTICE
FR
D'INSTALLATION
AQUA UNIT
AUAH
AUBH
AUCH
AUDH
Indoor unit - Inverter split air to water heat pump
Unità interna - Pompa di calore split Inverter aria / acqua
Unité intérieure - Pompe à chaleur split Inverter air / eau
37.4255.173.04
07/2019
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Summary of Contents for Argo AQUA AUAH
- Page 1 INSTALLATION INSTRUCTIONS MANUALE D’INSTALLAZIONE NOTICE D’INSTALLATION AQUA UNIT AUAH AUBH AUCH AUDH Indoor unit - Inverter split air to water heat pump Unità interna - Pompa di calore split Inverter aria / acqua Unité intérieure - Pompe à chaleur split Inverter air / eau 37.4255.173.04 07/2019...
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Page 2: Table Of Contents
CONTENTS 1 - Generalities ......... . .4 2 - Presentation . - Page 3 If necessary, get help These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sale/service outlet or your certified dealer for additional instructions. In case of improper installation The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.
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Page 4: Generalities
1 - GENERALITIES OPERATING CONDITIONS Water system pressure Minimum: 1,5 bar Maximum: 2,0 bar Water temperature The maximum allowable water inlet temperature of the heat pump is 75 ° C Water volume of the system (to be compulsorily checked) Minimum: AUAH: 40 litres (*) AUBH: 40 litres (*) AUCH: 80 litres (*) AUDH: 80 litres (*) -
Page 5: Presentation
2 - PRESENTATION 2.1 - DESCRIPTION OF THE PARTS 1 - Plate type heat exchanger. Materials: 2 - Electric heater: 2 kW - Copper piping. 3 - Air vent valve. - Stainless steel water heat exchanger. 5 - Automatic reset safety thermostat. - Painted sheet metal cabinet. - Page 6 2.2 - DIMENSIONS AND WEIGHT AUAH AUBH AUCH AUDH 1 Water inlet connection 3/4” M 3/4” M 3/4” M 3/4” M 2 Water outlet connection 3/4” M 3/4” M 3/4” M 3/4” M 3 Safety valve connection and drainage ø 18mm ø...
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Page 7: Installation
2.3 - ADDITIONAL MATERIAL REQUIRED FOR INSTALLATION (NOT SUPPLIED) • Deoxidized annealed copper tube for refrigerant tubing connecting Emix; it has to be insulated with foamed polyethylene (min. thickness 8mm). • Anti-freeze oil for flare connections (about 30g.) • Electric wire: use insulated copper wires of size and length as shown at paragraph “SYSTEM WIRING DIAGRAMS”. •... - Page 8 3.2 - HOW TO INSTALL THE UNIT FRONT VIEW IINSTALLATION TO THE WALL OR ON THE FLOOR • Remove the front panel from the unit, pulling towards you (fig. 1). NOTE: The panel is connected with two wires to the electrical junction box.
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Page 9: Connections
4 - CONNECTIONS 4.1 - REFRIGERANT CONNECTION Outdoor unit indoor unit Liquid line Gas line AUAH AUBH AUCH AUDH * IMPORTANT! Connection to the refrigerant Circuit A Circuit A Circuit A Circuit A ** Connect EXCLUSIVELY circuit of outdoor unit * to the circuit «A»... - Page 10 4.2 - HYDRAULIC CONNECTION 4.2.1 - WATER INLET AND OUTLET CONNECTION • Connect the water pipes to the corresponding connections (for diameters and position, see page 6). • It is mandatory to install a hydraulic fi lter (1) (not supplied) on the water intake. Connect it using two on-off valves (2) (not supplied) for cleaning purposes.
- Page 11 4.3 - ELECTRICAL CONNECTION • Remove the front panel (fi g.1). NOTE: The panel is connected with two wires to the electrical junction box. Be careful not to pull the wires and, in case, disconnect them. • Remove the cover of electrical junction box to access the terminal blocks (fi g. 2). •...
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Page 12: System Wiring Diagrams
4 - SYSTEM WIRING DIAGRAMS LENGTH, SIZE WIRES AND DELAYED FUSE S ( mm S ( mm S ( mm S ( mm 0,75 0,75 0,75 10 A Supply power wire A: Multipolar electric wire; the size of the suggested electric wire is shown on table. The wire must be Mod. H07RN-F (according to CEI 20-19 CENELEC HD 22). - Page 13 5.2 - FULL CONFIGURATION EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS MODBUS GATEWAY DATALOGGER 1 DATALOGGER 2 OUTDOOR UNIT 5.3 - CONNECTIONS DETAILS • DHW VALVE (1): DHW valve closing command. Phase output 230 Vac / 20 W max. (2): Neutral (3): DHW valve opening command.
- Page 14 • THERMOSTAT ON/OFF • If switch SW3 (see page 30) of main board is set on 12 Vdc, connect thermostat dry contact between poles (9) and (10): (9): Low voltage input (10): 12 Vdc Closed contact: heating / cooling request Open contact: unit in standby •...
- Page 15 • DHW CONTROLLER • If switch SW3 (see page 30) of main board is set on 12 Vdc, connect thermostat dry contact between poles (13) and (14): (13): Low voltage input (14): 12 Vdc Closed contact: ACS production request / secondary setpoint selection Open contact: normal mode •...
- Page 16 • OUTDOOR TEMPERATURE SENSOR (OAT) INSTALLATION OF THE OUTDOOR TEMPERATURE SENSOR FOR HEAT PUMP OPERATION This sensor must be located outside in a location that is representative of the temperature to be measured (on a wall facing North / North-west) and located away from parasitic heat sources (chimney, thermal bridge, etc..) and sheltered from inclement weather (under a roof overhand, for example).
- Page 17 5.4 - CONNECTION EXAMPLES WORKING MODE SELECTION WITH ON/OFF THERMOSTAT EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT WORKING MODE SELECTION WITH ON/OFF THERMOSTAT AND HEAT/COOLING (H/C) EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT NOTE: see paragraph “STARTING”...
- Page 18 WORKING MODE SELECTION WITH ON/OFF THERMOSTAT AND ECO FUNCTION EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT WORKING MODE SELECTION WITH ON/OFF THERMOSTAT, THERMOSTAT FOR DHW AND SAFETY THERMOSTAT EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT...
- Page 19 WORKING MODE SELECTION WITHOUT THERMOSTAT EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT WORKING MODE SELECTION WITHOUT THERMOSTAT + SAFETY SWITCH EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT...
- Page 20 WORKING MODE SELECTION WITH 0 - 10V ROOM TEMPERATURE CONTROLLER AND DHW PRODUCTION EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT WORKING MODE SELECTION WITH 24 Vac THERMOSTAT AND DHW PRODUCTION EXT. OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 OUTDOOR UNIT...
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Page 21: System Layout
6 - SYSTEM LAYOUT... -
Page 29: Starting
7 - STARTING IMPORTANT NOTE Before carrying out any work on the installation, make sure that it is switched off and that access to it is prevented. Any work must be carried out by personnel qualifi ed and authorised to work on this type of unit. 7.1 - PRELIMINARY CHECKS 7.1.1 - HYDRAULIC CIRCUIT •... - Page 30 7.2 - JUMPERS/SWITCH SETTING 7.2.1 - MAIN BOARD LEDs JUMPERS SWITCH SWITCH JUMPERS JP1 - ENABLING COOLING MODE CLOSED: the unit will run in heating mode only (FACTORY SETTING). OPEN: the unit can run in heating and cooling mode. JP2 - DEFROST TYPE SELECTION Internal use.
- Page 31 7.2.2 - CONTROL PANEL/DISPLAY See manual “Control panel /display” for the system parameterisation. 7.3 - ADDITIONAL HYDRAULIC CIRCUIT VERIFICATIONS (USING CONTROL PANEL)
- Page 32 7.3.1 - FORCED START-UP OF CIRCULATION PUMP To carry out the latest hydraulic circuit tests, start the circulation pump (forced start-up) as follows (under voltage system): - - - - - - - - • Turn on the display while holding down the SET button for 3 seconds: 3 0 .
- Page 33 7.3.2 - CHECKS With the pump running, perform the following checks: • Hydraulic circuit air bleed: operate the pump at 100% in manual mode) for as long as it takes to completely purge the circuit air. • Hydraulic pressure between 1.5 and 2.0 bar •...
- Page 34 7.3.4 - CHECKING THE PRESSURE LOSSES With the pump running at the set speed, compare the reread fl ow with the following curves to determine the system pressure losses and compare them with the calculations made during the installation of the system. AUAH AUBH p/kPa...
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Page 35: Maintenance Instructions
7.4 - STARTING • Turn on the system fi ve hours before start-up in order to preheat the compressor housing. • The system can only be started by authorized service centers. • Fill in the required starter form attached. 8 - MAINTENANCE INSTRUCTIONS IMPORTANT NOTE •... -
Page 36: Electrical Diagram
9 - ELECTRICAL DIAGRAM Symbols of the components Colour of the wires Gas pressure sensor Black Brown Return water temperature sensor Blue Supply water temperature sensor Green Outdoor air temperature sensor Grey ICT1 Outlet sensor (HEAT) / inlet sensor (COOL) Orange plate exchanger Pink... -
Page 37: Auto-Diagnosis Table
10 - AUTO-DIAGNOSIS TABLE CAUTION Disconnect power and wait that all LEDs are OFF before servicing on the electrical box. X LED OFF O LED ON LED BLINKING DISPLAY LEDs ON BOARD DESCRIPTION CHECK SENSOR Test mode error INSTALL. ERR Communication error with Emix or 2 zone kit COMM2 ERROR Communication error with display... - Page 38 Via Alfeno Varo, 35 - 25020 Alfianello - BS - Italy Tel. +39 0331 755111 - Fax +39 0331 755501 www.argoclima.com...
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