Oasis I Series User manual

oasis i series Inverter Pool Heat PumpInstallation & Operation Manual
oasisheatpumps.com

Contents
111

1. Introducon
This manual contains all the necessary informaon in regard to the installaon, troubleshoong, operaon and
maintenance of this unit. Ensure instrucons in this manual are adhered to at all mes. Failing to comply with these
recommendaons will invalidate the warranty.
The Oasis heat pump is the ideal choice for recreaonal pool & spa owners looking to extend their swim season with
minimal running costs. Designed with the latest technology including stepless full DC inverter compressors, fans, and
control systems – the Oasis I series is the energy efficient and environmentallyfriendly way to enjoy a longer swim
season.
฀ Latest full stepless inverter technology
฀ Heang and cooling capability
฀ Easy to use LCD touchscreen controller
฀ Built-in mers
฀ Quiet operaon
฀ Robust ABS cabinet
฀ Eco-friendly and safe R32 refrigerant
฀ Automac defrost system
฀ Horizontal front discharge air flow
฀ Simple installaon
฀ Small footprint, ideal for ght installaons
฀ Guaranteed stable performance from -7°C air
฀ Ideal to use with solar PV panels
2

113
2.1 Performance data of Swimming Pool Heat Pump Unit
*** REFRIGERANT : R32
Rated Heating: Outdoor air temp: 27 , Inlet water temp:26/28
/24.3
UNIT
By 50Hz
Range
Nominal Heating PowerInput
By 50Hz
Range
Nominal Running Current Input
By 50Hz
Range
Power Supply
Compressor Quantity
Compressor
Fan Quantity
Fan Power Input
Fan Rotate Speed
Fan Direction
Noise
Water Connection
Water Flow Volume
Water Pressure Drop(max)
Unit Net Dimensions(L/W/H)
Unit Ship Dimensions(L/W/H)
Net Weight
Shipping Weight
Nominal Heating CapacitykW
Btu/h
kW
Btu/h
kW
kW
A
A
W
RPM
dB(A)
mm
3
m /h
kPa
mm
mm
kg
kg
9.00
30600
2.209.00
748030600
1.60
0.161.60
7.0
0.87.0
230V/50Hz
1
rotary
1
100
400-800
horizontal
39-51
40
3.0
4.0
1000418605
1030435615
45
54
Oasis I12
12.00
40800
2.9012.00
986040800
2.12
0.212.12
9.4
1.19.4
230V/50Hz
1
rotary
1
100
400-800
horizontal
42-53
40
3.7
4.5
1000418605
1030435615
46
58
Oasis I9

4
2.1 Performance data of Swimming Pool Heat Pump Unit
*** REFRIGERANT : R32
Rated Heating: Outdoor air temp: 27 , Inlet water temp:26/28 /24.3
UNIT
By 50Hz
Range
Nominal Heating PowerInput
By 50Hz
Range
Nominal Running Current Input
By 50Hz
Range
Power Supply
Compressor Quantity
Compressor
Fan Quantity
Fan Power Input
Fan Rotate Speed
Fan Direction
Noise
Water Connection
Water Flow Volume
Water Pressure Drop(max)
Unit Net Dimensions(L/W/H)
Unit Ship Dimensions(L/W/H)
Net Weight
Shipping Weight
Nominal Heating CapacitykW
Btu/h
kW
Btu/h
kW
kW
A
A
W
RPM
dB(A)
mm
3
m /h
kPa
mm
mm
kg
kg
Oasis I17
17.00
57800
3.8017.0
1292057800
3.02
0.303.02
13.3
1.513.3
230V/50Hz
1
rotary
1
120
500-750
horizontal
43-54
40
5.2
5.0
1046453767
1130480780
75
19.50
66300
4.6019.50
1564066300
3.94
0.373.94
17.2
1.817.2
230V/50Hz
1
rotary
1
120
500-900
horizontal
43-55
40
6.0
6.0
1160490862
1210510880
71
88
60
Oasis I19

115
2.1 Performance data of Swimming Pool Heat Pump Unit
*** REFRIGERANT : R32
Rated Heating: Outdoor air temp: 27 /24.3, Inlet water temp:26/28
UNIT
Nominal Heating Capacity
By 50Hz
Range
Nominal Heating PowerInput
By 50Hz
Range
Nominal Running Current Input
By 50Hz
Range
Power Supply
Compressor Quantity
Compressor
Fan Quantity
Fan Power Input
Fan Rotate Speed
Fan Direction
Noise
Water Connection
Water Flow Volume
Water Pressure Drop(max)
Unit Net Dimensions(L/W/H)
Unit Ship Dimensions(L/W/H)
Net Weight
Shipping Weight
kW
Btu/h
kW
Btu/h
kW
kW
A
A
W
RPM
dB(A)
mm
m3/h
kPa
mm
mm
kg
kg
24.60
83930
8.7024.60
29680 83930
3.89
0.71 3.89
17.0
3.20 17.0
230V/50Hz
1
rotary
1
150
600-800
horizontal
45-56
40
10.0
14.0
1160 490 862
1210 510 880
86
103
Oasis I25 Oasis I29T
28.6
97587
9.8 28.6
33439 97587
4.17
0.70 4.17
7.40
1.30 7.40
380-415V/3N~/50Hz
1
rotary
1
150
600-700
horizontal
45-57
40
12.0
17.0
1160 490 862
1210 510 880
99
120

2. Unit Dimensions
Unit: mm
545
1000
398
Oasis I9 & I12
6

Oasis I17
1046
101
453
615
767
Water inlet
40
Water outlet
40
96
790
490
862
466
1160
Oasis I19 711

Oasis I25&Oasis I29T
8
Water inlet
40
Water outlet
40
96
790
490
862
466
1160

5
3. Quick Start Guide
IMPORTANT THINGS TO NOTE
฀ Ensure you meet the minimum clearances and recommended installaon locaons as outlined in the
manual.
฀ All heat pump accessories are contained in a plasc bag inside the packaging of your heat pump unit.
PRE-INSTALLATION
1. Posion the heater on a level pad in the desired locaon on the pool water return line (as shown in the example
image below).
2. Install the supplied anvibraon rubber pads under the feet of the unit.
3. Install the supplied condensaon barb to the underside of the unit and direct the condensaon to an
appropriate drainage point.
PLUMBING INSTALLATION
PLEASE NOTE: Oasis heat pumps standard plumbing fing size can accept 40mm NB PVC pipe for connecon to
the pool or spa filtraon plumbing.
1. Aach the supplied barrel unions to the cold inlet and hot outlet (hand ghten).
2. Use plumbing tape and ensure the ‘O’ ring is in posion when sealing.
3. Install a 3-way valve at the cold-water inlet and create a bypass by connecng a “T” piece to the heatedline.
4. Make the plumbing connecons and brace pipework where necessary. 911

ELECTRICAL CONNECTION
PLEASE NOTE: Electrical connecon should only be completed by licenced personnel and in accordance with all
relevant New Zealand and Australian Standards, applicable laws and local legislaons.
1. Remove the external cover to the electrical terminal by removing the screws and the terminal coverpanel.
2. Feed the electrical cable in through the conduit nipple and aach the electric supply wires to the applicable
Acve Neutral and Earth connecons located in the electrical terminal.
3. To complete the electrical connecon, install electrical conduit, UF cable or other suitable means as specified (as
permied by local electrical authories) and connect the cable to a dedicated power supply branch circuit
equipped with the appropriate size circuit breaker, or me delay fuse protecon.
INITIAL START UP AND COMMISSIONING
PLEASENOTE: The water pump must be running and water circulang through the heat pump for the system to
operate.
1. Turn on your water filterpump and check for water leaks and verifyflow to and from the pool.
2. Turn on the electrical power supply to the Oasis unit.
3. Press the ON/OFF buon of the controller for half a second, the heat pump will start within 60seconds
4. To select the operang mode, press the “M” buon to cycle to the sun icon (heang)
5. To set the temperature, press in the main interface, the current target-temperature willflash
6. Press to increase the temperature, or press to decrease the temperature
7. Once the desired temperature is displayed, allow the screen to me out to set
8. Aer thesystem has been running for approximately 5 minutes; check the 2 temperatures displayed on the
screen and review the Temperature Differenal (TD). The maintemperature displayed is the cold water inlet
temperature, the small temperature display is the heated water outlet.
9. Adjust the water flow by opening or closing the 3-way valve installed at the cold-water inlet to achieve a target
TD of approximately 2°C (e.g. 22°C inlet water and 24°C outlet water)
10. If there is any interrupon to water flow (i.e. when the water pump is turned off), the unit will automacally turn
offand display an E03 error code - no water flow. This is normal and the system will restart once water flow is
reinstated.
INITIAL HEAT UP TIME
Inial heat up mes will vary depending on the size of your pool, environmental condions and the capacity of the
system installed. Aer installaon please allow the unit and pool pump to run connuously unl the desired pool
water temperature is reached (it may take several days for the pool to inially reach the set temperature).
10

4. Safety Instrucons
Installaon, repair or relocaons must be done by a fullyqualified person and not by the customer. If done
incorrectly it may cause fire, electric shock, water leakage and other hazards.
A circuit breaker must be installed for the unit.
To avoid risk of electrical shock, the unit must have a good power connecon and earthing.
The unit is equipped with an over-load protecon system. Aer a previous stoppage, the unit will not start for at
least 3 minutes.
Do not use any means to accelerate the defrosng processor or to clean other than those
recommended by the manufacturer.
The unit must be stored in a room without any connuously operang ignion sources
(for example: open flames, an operang gas appliance or an operang electric heater.)
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarlyqualified
persons in order to avoid a hazard.
The appliance shall be installed in accordance with naonal wiring regulaons.
Before obtaining access to terminals, all supply circuits must be disconnected.
An all-pole disconnecon device must be incorporated which as at least 3mm clearances in all poles, a leakage
current that may exceed 10mA, residual current device (RCD) having a rated residual operang current not
exceeding 30mA and disconnecon must be incorporated in the fixed wiring in accordance with the wiring rules.
The unit should be installed, operated and stored in a room with a floor area larger than 30m2.
- The installaon of pipe-work shall be kept to a minimum 30 m2
- Spaces where refrigerant pipes shall be compliance with naonal gas regulaons.
- Servicing shall be performed only as recommended by the manufacturer.
- The appliance shall be stored in a well-venlated area where the room size corresponds to the room area as
specified for operaon.
- All working procedure that affects safety means shall only be carried by competent persons.
Transport of equipment containing flammable refrigerants
- Compliance with the transport regulaons
- Marking of equipment using signs
- Compliance with local regulaons
- Disposal of equipment using flammable refrigerants
- Compliance with naonal regulaons
- Storage of equipment/appliances
- The storage of equipment should be in accordance with the manufacturer's instrucons. Storage of packed
(unsold) equipment
- Storage package protecon should be constructed such that mechanical damage to the equipment inside
the package will not cause a leak of the refrigerant charge.
- The maximum number of pieces of equipment permied to be stored together will be determined by local
regulaons.
Use supply wires suitable for 75°C
* Cauon: Single wall heat exchanger, not suitable for potable water connecon. 1111

5. Installaon
5.1 System Installaon
Installaon Items
The factory only provides the mainunit and the water unit; the other items in the illustraon are necessary spare
parts for the water system that are to be provided by users or the installer.
Aenon
Please follow these steps when starng for the first me:
1. Open valve and charge water.
2. Make sure that the pump and the water-in pipe have beenfilled with water.
3. Close the valve and start the unit
The schemac diagram is for reference only. Please check the water inlet/outlet label on the heat pump while plumbing the unit.
IMPORTANT: Oasis heat pumps MUST be connected by a licensed electrician. Under no circumstances should an
unlicensed person aempt to install or repair an Oasis heat pump themselves. Heater electrical installaon
undertaken by an unlicensed installer will void the warranty. Correct installaon is required to ensure safe and
efficient operaon of your pool heater.
Before installaon it is very important to ensure 5 variables are carefully checked to allow the unit to operate
correctly.
฀ Heater Condion
฀ Locaon
฀ Clearances & Air Flow
฀ Adequate water flow & plumbing
฀ Correct electrical connecon & supply
5.2 Heater Condion
Check the heater packaging upon delivery for any obvious signs of damage. Inform your supplier IMMEDIATELY if
there is any evidence of rough handling. When the heater has been removed from the packaging check the
refrigerant gauge on the front panel of the unit. The gauge should be showing a pressure of approx. 10 – 20 on the
outside red band – any less than this figure means there may be a leak in the refrigerant system and you should
immediately contact your Oasis Dealer.
NOTE: All accessories (drain barb, rubber feet, Wi-Fi module and barrel unions) and installaon manuals are inside
the DHP-R service panel. Please ensure to remove the service panel to locate these items.
12

5.3 Loca on Recommenda ons
Installa on and service must be performed by a qualified installer.
Oasis recommend the heat pump should be installed in an outdoor loca on with appropriate ven a on. Installing
the heater indoors without adequate ven on, or in a poorly ven ted enclosed space, will result in very poor
performance and can, in extreme cases, damage the heater. Ensure the heater is installed in a well-ven ated area
with plenty of fresh air.
Oasis recommend the heat pump should ONLY be installed in a loca on with appropriate ven a on.
The Oasis pool heat pump should be installed with a minimum clearance of at least 3.5m to the water’s edge.
Furthermore, Oasis recommend installing the heat pump no greater than 7.5 meters away from the water’s edge
due to heat loss from the piping.
The heat pump should be installed a maximum of 5m below the water level of the pool/spa.
Make sure the heat pump is not located where large amounts of water may run-offfrom a roof into the unit. Sharp
sloping roofs without gu ers will allow excessive amounts of rain water mixed with debris from the roof to be forced
through the unit. A water deflector may be needed to protect the heat pump.
If installing the heater on an exis ng pump/filtra on system the heater must be installed AFTER the filter and
BEFORE the chlorinator/sani zer.
The heat pump should be installed on a flat level surface.
In the event that a suitable outdoor loca on is unavailable please contact Oasis or Sunlover for specialist
technical advice.
5.4 Airflow Clearances
The heat pump unit needs con nuous fresh air whilst running. The heater draws up to 80m3/min ambient air
through the sides and discharges through the top fan cowl.
Installing the heater indoors or in an enclosed space will result in very poor performance and can in extreme cases
damage the heater. Ensure the heater is installed in a well-ven ted area with plenty of fresh air, a minimum gap
between walls/fences etc of 600mm on the sides and 1500mm overhead clearance.
Leave sufficient space for unobstructed airflow into and out of the heater. Do not locate the heater in an enclosed
area, or the discharged cold air will recirculate into the unit and consequently lower the hea ng efficiency as well as
possible icing up.
If you do not have a loca on with these suggested clearances, please contact our Oasis Tech Support Specialist to
discuss appropriate installa on loca ons. 13Air inlet
Air outlet
500mm
700mm
300mm
500mm
700mm
11

5.5 Adequate Water Flow
All Oasis heat pumps have a factory preset internal water flow switch. If there is insufficient water flow the
heater will not operate.
It is CRITICAL that there is sufficient water flow to the unit. Incorrect water flow can cause a loss of efficiency and
possible damage to the unit. Opmal water flow rates are listed in the Oasis manual. It is imperave that water
flow is kept as close as possible to these flow rates. Correct water flow not only offers opmal heater performance,
but may also prevent possible damage to your heater.
Before connecng the heater to the plumbing, all piping must be thoroughly flushed to ensure no debris can enter
the heater. Failure to remove pipe debris can jam or damage the flow switch and may cause damage to the heater.
When cleaning the pool it is advisable to turn offyour heater as restricted water flow may cause the heater to shut
down and indicate low water flow fault (E03 error) or high pressure fault (E01 Error).
IMPORTANT: A Variable speedpump or bypass valve and plumbing MUST be fied to allow water flow to be
adjusted through the heater. Do not direct connect a water pump with higherflow than required to the heat
pump.
5.6 Rubber Feet
All Oasis unitsare provided with rubber feet which we highly recommend being installed. The rubber feet help
reduce vibraon of the unit and help provide a space below the heat pump to install the drainage barbs.
5.7 Condensate Drain Barb
Fit the condensate drain barb into the 2 holes under the unit if you
need to direct water away from the heater. Put in hot water if sff.
5.8 Drainage & Condensaon
Whilst the heater is operang, water in the air condenses on the fins of the evaporator. In the instance of high
humidity, the condensate may be several litres per hour. This may give the impression that the heater is leaking,
however this is a normal funcon of heat pumps.
The heater will automacally acvate reverse cycle or de-icing mode when required which also increases condensate
discharge. This normally occurs at temperatures below 8 deg C. The condensate water will discharge through the
base of the heater. As an opon a pipe can be connected to the drain on the base of the unit to direct condensate
water to an appropriate locaon.
NOTE: A quick way to verify that the water is condensaon is to shut offthe unit and keep the pool pump running. If
the water stops running out of the basepan, it is condensaon. AN EVEN QUICKER WAY IS to TEST THE DRAIN WATER
FOR CHLORINE – if the is no chlorine present, then it’s condensaon.
14

5.9 Plumbing
The Swimming Pool Heat Pumps exclusive ratedflow tanium heat exchanger requires no special plumbing
arrangements except bypass (please set the flow rate according to the nameplate). The water pressure drop is less
than 10kPa at max.
Flow rate: Since there is no residual heat or flame Temperatures, the unit does not need copper heat sink piping.
PVC pipe can be run straight into the unit.
Locaon: Connect the unit in the pool pump discharge (return) line downstream of all filter and pool pumps, and
upstream of any chlorinators, ozonators or chemical pumps.
Standard model have slip glue fings which accept 40 mm PVC pipe for connecon to the pool or spa filtraon
piping. By using a 50 NB to 40NB you can plumb 40NB.
Give serious consideraon to adding a quick coupler fing at the unit inlet and outlet to allow easy draining of unit
for winterizing and to provide easier access should servicing be required.
5.10 Electrical Connecon
IMPORTANT: Always use a qualified Electrician to perform any electrical work. A licensed electrician must read the
informaon before connecng.
Ensure the power cable and circuit breaker are of a suitable size for the heater being installed. Also check that there
is adequate voltage and current available at the heater connecon to run the unit.
Voltage range should be 220-230 volts for single phase, and 380-400 volts for 3 phase units. Voltage ranges outside
these parameters will cause heater damage and void your warranty.
1. Ensure power is disconnectedduring installaon or service.
2. Always comply with the naonal and local electrical codes and standards.
3. Ensure electrical cable size is adequate for heater requirements at the installaon locaon.
4. The heater must be equipped with a circuit breaker and isolaon device.
5. Circuit breaker must be installed between the heater and the water circulaon pump if the water pump is
hard-wired into the heater. Please note recommended circuit breaker sizes make no allowance for a water
pump hard wired into the heater.
6. Theunit must be well earthed. Remove the front panel to access the electrical connecon terminals of the
heater. The electrical wiring diagram is affixed to the inside of the front panel.
5.11 Inial Start-up
Refer to the Quick Start Guide, page 6 for instrucons on the inial start-up and commissioning of the unit. 1511

6. Operaon
6.1 Main Controller Interface
Icon Name Funcon
MUTE Under heang or auto mode, the mute operaon can be applied or removed.
MODE Switch unit mode, temperature seng and parameter seng.
ON/OFF Start-up/shutdown unit OR Cancel current operaon and return to last level of operaon
UP Scroll page up OR increase variable value
DOWN Scroll page down OR decrease variable value
CLOCK Date and me sengs OR mer sengs
Icon Name Meaning Icon Name Meaning
COOLING Cooling mode is acve LOCK The keyboard is locked
HEATING Heang mode is acve FAULTDisplays when a fault occurs
AUTO Auto mode is acve WIRELESS
Appears if the unit is connected to
wifiand shows the strength of the
signal accordingly
DEFROSTING Unit is defrosng WATER
OUTLET
When displaying the water outlet
temperature, the light is on
COMPRESSOR Displays when compressor has
started
WATER
INLET
When displaying the water inlet
temperature, the light is on
WATER PUMP Displays when water pump has
started SET When the parameter is adjustable this will display
FAN Displays when fan has started SECONDS Displays when on
MUTE Displays when mute funcon is
on MINUTES Displays when on
TIMING Timer has been set and is on HOURS Displays when on
FLOW Displays when on PRESSURE Displays when on
16

6.2 Funcons of the Controller
6.2.1 Start-up & Shutdown
Only from the main screen, the unit can be turned on of off. If the half or full-offscreen appears, press any key to go
back to the main interface.
When the unit is started using the controller, if the emergency switch was used to shut it down the controller will
display as follows; the operaon will be the same as the regular ON/OFF screen.
6.2.2 Switching Modes
To switch modes, from the main menu short press the MENU buon to choose from Heang, Cooling or Auto
modes. A symbol will display on the controller according to what mode is acve. Aer 2 seconds without a change,
the seng will be saved.
If the unit is defrosng, the defrosng symbol will display on the main interface. Aer defrosng is complete, the
unit automacally switches to Heang or Auto mode depending on what was on prior to defrosng. Under
defrosng the mode can be switched however the unit won’t apply the mode unl defrosng has been completed.
6.2.3 Seng the Target Temperature
From the main menu, press the UP or DOWN keys to adjust the temperature seng as desired. If you press the
ON/OFF buon during this, you will be taken back to the main menu with no changes saved. If there is no operaon
for 5 seconds or the MODE buon is pressed, the adjustments to the temperature will be saved and you will return
to the main menu.1711

Oasis i Series Manual
6.2.4 System Time Sengs
Hold the CLOCK buon for 2 seconds to enter the system me seng interface. Press the CLOCK again to adjust the
me. Aer the first press, the hour parameter will be flashing which means it can be changed, use the UP & DOWN
arrow accordingly. Press the CLOCK buon again to move to adjusng the minute digits using the same process.
Press the CLOCK buon again to save and return to the main interface.
Under this menu, if there is no operaon for 20 seconds the system will automacally memorise the sengs and
return to the main menu. Press the ON/OFF buon at any me during changes to exit without saving changes.
6.2.5 Timer Sengs
6.2.5.1
Seng a Timer
The controller can be set up as a two-stage ming switch: Timer ON1~OFF1; Timer ON2~OFF2.
Select ON1, OFF1, ON2 or OFF2 on the mer seng interface.
Press the CLOCK buon to enter the mer seng interface. Press the UP or DOWN arrows to choose between ON1,
OFF1, ON2 or OFF2. To set the me, follow the same process as changing the system me to adjust values.
Example: On at 9:20
NOTE: You will need to set both an ON & OFF Time if using this funcon
18