Sakura SXAO-110HAS Manual
All in one Air to Water Heat Pump
Split system
Installation and Service Manual
Models: SXAO-110HAS SXAO-140HAS
SXAO-160HAS/3
(Please read the manual thoroughly before operation. )
1
CONTENTS U U
INTRODUCTION...................................................……….......………………..2
PARTS AND DESCRIPTIONS……………………………………….…….…….3
Indoor unit- all models (External)………………………………………………………….….3
Indoor unit- all models (Internal)………………………………………………………….…..4
Outdoor unit (External): SXAO-110HAS and SXAO-140HAS………………………...…5
Outdoor unit (External): SXAO-110HAS and SXAO-140HAS………………….…..……7
Outdoor unit (External): SXAO-160HAS/3………………………………………………...8
Outdoor unit (External): SXAO-160HAS/3…………………………………………….…..9
SERVICE SPACE………………………………………………………………....10
OPERATING THE UNIT…………………………………………………….……11
Introduction………………………………………………………………………………….….11
OPERATING THE DIGITAL CONTROLLER…………………………………..11
Features and functions……………………………………………………………………..…12
Base controller functions…………………………………………………………...…..12
Clock function………………………………………………………………………...…12
Schedule timer function………………………………………………………….……..12
Name and function of buttons…………………………………………………………….….13
Name and function of LCD icons………………………………………………………….…15
Setting up the controller……………………………………………………………………....17
Setting the clock and the day of the week……………………………………….…...17
Setting the key lock………………………..……………………………………….…...17
Setting the schedule timer……………………………………………………………...17
Description of the operation modes………………………………………………….…..….18
Space heating operation…………………………………………………….………....18
Space cooling operation………………………………………………………………..18
Domestic water heating operation………………………………………………..……18
Controller operations………………………………………………………………….……….19
Manual operation………………………………………………………………………..19
Schedule timer operation……………………………………………………………….20
Programming and consulting the schedule timer………………………………………..…22
Getting started…………………………………………………………………………..….….22
Programming. …………………………………………………………………………..23
Tips and tricks………………………………………………………………………..….24
WIRING DIAGRAM……………………………………………………………….25
DIGITAL SWITCH AND DETAILED DESCRIPTION…………………….……28
Digital switch introduction ……………………………………………………………………28
DC voltage (0~10V) control …………………………………………………………………29
MAINTENANCE…………………………………………………………………..29
TROUBLESHOOTING……………………………………………………..…….30
DISPOSAL REQUIREMENTS………………………………………………..... 30
READ THESE MANUAL ATTENTILY BEFORE STARTING UP THE UNIT. DO NOT THROW IT
AWAY. KEEP IT IN YOUR FILES FOR FUTURE REFERENCE.
Before operating the unit, make sure the installation has been carried out correctly by a
professional dealer.
If you feel unsure about operation, contact your dealer for advice and information.
2
INTRODUCTION
This manual
This manual describes how to start up and switch off the unit, set parameters and configure the
schedule timer by means of the controller, maintain the unit and solve operational problems.
This unit
All in one split system consists two parts: Indoor unit and Outdoor unit. They are connected via
refrigerant pipes. The indoor unit is the indoor part of the reversible air to water heat pumps. These
units are designed for all mounted indoor installation and used for both heating and cooling
applications. The unit can be combined with fan coil units, floor heating, low temperature radiators,
and the domestic hot water tanks.
The unit range consists of two main versions: a heating/cooling version and a heating only version.
Both versions can optionally be delivered with an integrated backup heater for additional heating
capacity during cold outdoor temperatures. The backup heater also serves as a backup incase of
malfunctioning of the outdoor unit. The backup heaters are available in different capacities.
Options
Domestic hot water tank option
An optional domestic hot water tank with integrated 3KW electrical booster heater can be connected
to the indoor unit. The domestic hot water tank is available in different sizes.
3
PARTS AND DESCRIPTIONS
Indoor unit- all models (External)
4
Indoor unit- all models (Internal)
1. Air purge valve
Remaining air in the water circuit will be
automatically removed via the air purge valve.
2. Backup heater vessel
The backup heater heats the water in the
backup heater vessel.
3. Backup heater
The backup heater consists of an electrical
heating element that will provide additional
heating capacity to the water circuit if the
heating capacity of the outdoor unit is
insufficient due to low outdoor temperatures.
4. Pump
The pump circulates the water in the water
circuit.
5. Manometer (water pressure)
The manometer allows readout of the water
pressure in the water circuit.
6. Flow switch
The flow switch checks the flow in the water circuit and protects the heat exchanger against
freezing and the pump against damage.
7. Manometer (refrigerant pressure)
The manometer allows readout of the refrigerant pressure in the refrigerant circuit.
8. Motorized 3-way valve
The motorized 3-way valve is used to change the water circuit between space heating/cooling and
hot water supply.
9. User interface
The user interface allows the installer and user to set up, use and maintain the unit.
10. Switch box
5
The switch box contains the main electronic and electrical parts of the indoor unit.
11. Refrigerant liquid connection
12. Refrigerant gas connection
13. Water outlet connection (hot water)
14. Water inlet connection (hot water)
15. Water outlet connection (space heating/cooling water)
16. Water inlet connection (space heating/cooling water)
17. Water filter
The water filter removes dirt from the water to prevent damage to the pump or blockage of the
evaporator. The water filter must be cleaned on a regular base.
18. Heat exchanger
19. Refrigerant service valve
20. Expansion vessel (10L)
21. Temperature sensors
Four temperature sensors determine the water and refrigerant temperature at various points in the
water circuit.
22. Water circuit service valve
23. Pressure relief valve
The pressure relief valve prevents excessive water pressure in the water circuit by opening at 3
bar and discharging some water.
6
Outdoor unit (External): SXAO-110HAS and SXAO-140HAS
7
Outdoor unit (Internal): SXAO-110HAS and SXAO-140HAS
1. Right front plate 2. Front plate
3. Air outlet grills 4. Outdoor fan
5. Fan motor 6. Fan motor holder
7. Condenser 8. Left plate
9. Top plate 10. Separated plate
11. Back grill 12. Capacitor
13. Contactor 14. Main PCB assembly
15. Terminal 16. Electric box
17. Hand holder 18. Right back plate
19. Thermal expansion valve assembly 20. Four-way valve assembly
21. Refrigerant storage vessel 22. High pressure service valve
23. Low pressure service valve 24. Compressor
25. Base plate
8
Outdoor unit (External): SXAO-160HAS/3
9
Outdoor unit (Internal) - SXAO-160HAS/3
1. Right front plate 2. Hand holder
3. Air outlet grills 4. Front plate
5. Outdoor fan 6. Fan motor
7. Left plate 8. Condenser
9. Fan motor holder 10. Top plate
11. Back grill 12. Separated plate
13. Electric box 14. Main PCB assembly
15. Contactor 16. Four-way valve assembly
17. Capacitor 18. Terminal
19. Refrigerant storage vessel 20. Right back plate
21. Oil separated vessel 22. Compressor
23. Low pressure service valve 24. High pressure service valve
25. Thermal expansion valve assembly 26. Base plate
Este manual sirve para los siguientes modelos
2
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