Davey DHP90 User manual

Please pass on these instructions to the operator of this equipment.
Pool Heat Pump
Installation and Operating
Instructions

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Table of Contents:
1. FOREWARD .................................................................................................................................................3
2. SAFETY PRECAUTIONS .............................................................................................................................3
2.1 Warning ...................................................................................................................................................3
2.2 Attention ..................................................................................................................................................3
2.3 Safety ......................................................................................................................................................4
3. ABOUT YOUR HEAT PUMP.........................................................................................................................4
3.1 Transportation .........................................................................................................................................4
3.2 Accessories ............................................................................................................................................. 4
3.3 Features ..................................................................................................................................................5
3.4 Operating range ......................................................................................................................................5
3.5 Introduction of different modes................................................................................................................ 5
3.6 Technical parameter ................................................................................................................................6
3.7 Dimensions..............................................................................................................................................6
4. INSTALLATION GUIDANCE ........................................................................................................................7
4.1 Installation reminder ................................................................................................................................7
4.2 Wiring ......................................................................................................................................................9
4.3 Electric wiring diagram ............................................................................................................................ 9
4.4 References for protecting devices and cable specification ..................................................................... 9
5. OPERATION GUIDANCE ...........................................................................................................................10
5.1 Key function...........................................................................................................................................10
5.2 Operation instruction .............................................................................................................................10
6. TESTING..................................................................................................................................................... 11
6.1 Inspect heat pump before use............................................................................................................... 11
6.2 Leakage detection method .................................................................................................................... 11
6.3 Trial........................................................................................................................................................ 11
7. MAINTENANCE..........................................................................................................................................12
8. TROUBLE SHOOTING FOR COMMON FAULTS...................................................................................... 13
8.1 Repairing Guidance...............................................................................................................................13
8.2 Failure solution and code ...................................................................................................................... 13
9. WATER PUMP CONTROL CONNECTION.................................................................................................16
10. WI-FI OPERATION....................................................................................................................................18
11. SPARE PARTS..........................................................................................................................................24

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1. FOREWARD
The Davey heat pump uses eco-friendly R32 gas and step-less DC inverter technology which allows heat to
be extracted from the surrounding air more efciently. This heat is transferred to the pool water by a twisted
titanium heat exchanger. This method generates substantial energy savings compared to: a conventional
electric resistance heater, and natural, or propane gas pool heaters.
2. SAFETY PRECAUTIONS
We have provided important safety messages in this manual and on your heat pump.
Please always read and obey all safety messages.
Environmentally friendly R32 Refrigerant is used for this heat pump.
2.1 Warning
WARNING: Low velocity burning material.
R32 Gas
The WARNING sign denotes a hazard. It calls attention to a procedure, practice,
or the like, which, if not correctly performed or adhered to, could result in personal
injury or injury to a third party. These signs are rare, but are extremely important.
WARNING: Do not use means to accelerate the defrosting process or to clean other than
those recommended by the manufacturer.
The appliance shall not be stored near any ignition sources (for example; open ames, an
operating gas appliance or an operating electric heater.
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
R32 Gas
INSTALLATION REMINDERS:
The installation of any pipework should be kept to a minimum.
Pipework should be protected from physical damage and shall not be installed in an
unventilated place.
The heat pump should not be installed indoor.
Any mechanical connections need to be kept accessible for maintenance purposes.
The heat pump requires 50cm clear space on each side to be clear from obstructions for
ventilation purposes.
Any maintenace or service needs to be carried out in compliance with national
gas regulations.
QUALIFICATION OF WORKERS: A technician with a Refrigerant Handling Licence should
carry out any service or maintenance carried out on the heat pump refrigerant equipment.
A registered electrician should carry out any service or maintenance required for the heat
pump electrical equipment.
2.2 Attention
a. Please read the following instructions before installation, use and maintenance.
b. Installation must be done by professional staff only in accordance with this manual and any
local regulations.
c. Leakage test must be performed after installation.
d. Please don’t stack substances, which will block air ow near inlet or outlet area, otherwise the efciency of
the heat pump will be reduced or even stopped.

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e. Set proper temperature in order to get a comfortable water temperature to avoid overheating or
overcooling.
f. In order to optimize the heating effect, please install heat preservation insulation on pipes between
swimming pool and the heat pump, and please use a recommended cover on the swimming pool.
g. Connecting pipes of the swimming pool and the heat pump should be ≤10m.
h. Except for the methods recommended by the manufacturer, do not use any methods to accelerate the
defrosting process or clean the frosted parts.
i. If a repair is required, please contact the nearest after-sales service centre. The repair process must be
strictly in accordance with manual. All repair practice by non-licensed personnel is prohibited.
j. Don’t use or stock combustible gas or liquid such as thinners, paint and fuel to avoid re.
2.3 Safety
a. Please keep the main power supply switch far away from children.
b. When a power outage happens during operation, the heat pump will start when the power is restored..
c. Please switch off the main power supply in lightening and storm weather to prevent from damage caused
by lightning.
d. Safety inspection must be carried before the maintenance or repair of heat pumps with R32 gas in order to
minimize the risk.
e. Installation and any repairing should be conducted in an area with adequate ventilation and with no nearby
ignition sources.
f. If R32 gas leaks during the installation process, all operations must be stopped immediately and call the
service centre.
WARNING: Do not use means to accelerate the defrosting process or to clean other than
those recommended by the manufacturer.
The appliance shall not be stored near any ignition sources (for example; open ames,
an operating gas appliance or an operating electric heater.
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
3. ABOUT YOUR HEAT PUMP
3.1 Transportation
a. Always keep upright
b. Do not lift the water union
(Otherwisethe titanium heat exchangermay be damaged)
3.2 Accessories
Water Union
Drainage Kit

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Connection of the condensate drainage kit:
3.3 Features
a. DC Twin-rotary inverter compressor of Mitsubishi
b. DC Brushless fan motor
c. EEV Technology
d. Reverse cycle defrosting with 4-way valve
e. High-efciency twisted titanium heat exchanger
f. Sensitive and accurate temp control and water temp display
g. High pressure and low pressure protection
h. Full protection on electrical systemea
3.4 Operating Range
To get the best results from your Davey heat pump please set swimming pool water temperature efciently
and economically.
The heat pump can operate in temperatures between -10°C – 43°C, and its ideal operation range is
between air 15°C – 25°C.
During installation and operation of the Davey heat pump, its important to ensure that the ow rate in set to
the advised water ow rate in section 3.6 and that the pressure does not exceed 500kPa.
In accordance with AS/NZS 60335.2.40 we are obligated to inform you that this Davey
heat pump is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience or knowledge, unless they have
been given supervision or instruction concerning use of the appliance by a person
responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
3.5 Introduction of different modes
The heat pump has two modes: Boost and Silence.
They have different strengths under different conditions.
MODE MODES STRENGTH
Boost mode
Heating capacity: 20% to 100% capacity
Intelligent optimization
Fast heating
Silence mode Heating capacity: 20% to 80% capacity
Sound level: 3dB (A) lower than Boost mode

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3.6 Technical parameter
MODEL DHP90 DHP130 DHP170 DHP210 DHP280 DHP3503
PERFORMANCE CONDITION: Air 27°C/ Water 27°C/ Humid. 80%
Heating capacity(kW) 9 13 17.5 21 28 35.2
COP range 14.0~7.2 14.5~7.0 15.6~7.0 14.8~7.1 16.0~7.2 15.5~7.0
Average COP at 50% speed 10.5 10.5 11 11 11.1 10.5
PERFORMANCE CONDITION: Air 15°C/ Water 26°C/ Humid. 70%
Heating capacity(kW) 6.6 9 12.5 14.5 19 24.2
COP range 7.5~4.8 7.5~5.0 7.7~5.0 7.1~5.0 8.0~5.0 7.5~5.0
Average COP at 50% speed 6.5 6.4 6.6 6.6 6.6 6.6
TECHNICAL SPECIFICATIONS
Advised pool volume (m3) * 20~45 35~65 40~80 50~95 60~120 85~160
Operating air temperature (°C) -10°C – 43°C
Compressor Twin-rotary Mitsubishi DC Compressor
Casing Aluminum-alloy Casing
Heat exchanger Twisted Titanium Heat Exchanger
Power supply 230V 1Ph 400V 3Ph
Rated input power (kW) 0.19~1.38 0.26~1.80 0.33~2.50 0.38~2.90 0.49~3.80 0.65~4.84
Input power at 50% speed (kW) 0.51 0.7 0.95 1.1 1.44 1.84
Rated input current (A) 0.83~5.98 1.13~7.83 1.44~10.90 1.66~12.7 2.15~16.53 0.95~7.01
Sound level at 1m dB(A) 36.8~46.2 40.1~48.7 41.1~51.8 38.9~52.2 41.5~52.9 40.6~52.6
Sound level 50% at 1m dB(A) 39.4 43.7 44.5 44.4 46.4 46.1
Sound level at 10m dB(A) 16.8~26.1 20.1~28.7 21.1~31.8 18.9~32.2 21.5~32.9 20.6~32.6
Advised water ow (l/min) 30-70 70-100 100-130 130-170 170-200 200-300
Water connection (mm) 40
Gas Weight (g) 650 800 1000 1200 2000 2700
Remarks:
This heat pump is able to perform normal within air temp -10°C – +43°C, efciency will not be guaranteed out
of this range. Please take into consideration that the pool heat pump performance and parameters are different
under various conditions.
Related parameters are subject to adjustment periodically for technical improvement without further notice.
For details please refer to nameplate.
3.7 Dimensions
E
D
C
F
G
A
H
B

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DIMENSIONS (mm)
MODEL DHP90 DHP130 DHP170 DHP210 DHP280 DHP3503
DHP90 890 1060 1314
DHP130 430 512
DHP170 657 957
DHP210 53 57 66 72 91 135
* Above data is subject to modication without notice.
NOTE: The picture above is the specication diagram of the pool heat pump, for technician’s installation and
layout reference only. The product is subject to adjustment periodically for improvement without further notice.
4. INSTALLATION GUIDANCE
4.1 Installation reminder
The installation of this product should be carried out by a person knowledgeable in swimming pool plumbing
requirements following the installation instructions provided in this manual.
To get the best results from your Davey heat pump, its location is critical. The Davey heat pump takes hot air
from its surroundings and transfers this heat through its heat exchanger, to the pool water.
Your Davey heat pump should be installed in a well ventilated area.
WARNING: Improper installation, adjustment, service, maintenance or use can cause re,
electrical shock or other conditions which may cause injury or property damage. Consult
a qualied technician or service agency for information or assistance. All service calls
under warranty should be authorized by Davey Water Products.
The installation of any pipework should be kept to a minimum
Pipe work should be protected from physical damage and shall not be installed in an
unventilated place.
The heat pump should not be installed indoor.
Any mechanical connections need to be kept accessible for maintenance purposes.
The heat pump requires 50cm clear space on each side to be clear from obstructions for
ventilation purposes.
The heat pump draws air in through each side of the heat pump and out through the rear.
Please consider this during installation.
For installations up to 17kW

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For installations 21kW and over
Installing into main ltration system
Installing into existing solar heating system
1) The frame must be xed by bolts (M10) to concrete foundation or brackets. The concrete foundation must
be solid and fastened; the bracket must be strong enough and antirust treated;
2) Please ensure 50cm of clearance around each side of the Davey heat pump or the efciency of the heat
pump will be reduced;
3) Although a bypass system is not necessary for your Davey heat pump to operate properly, we strongly
recommend the installation of a bypass system to regulate the ow rate and make the maintenance and
winterising of the Davey heat pump easier.;

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4) When the heat pump is running, there will be condensation water discharged from the bottom. Please use
the drainage kit supplied.;
5) Your Davey heat pump must be connected with hard pipes.
6) Any pipework installation should be kept to a minimum and protected from physical damage.
7) If the Davey heat pump will be in operation over winter, Davey recommends it is installed on the main
ltration system to avoid heat loss through the solar heating system.
4.2 Wiring
WARNING: The electrical connection should be done by a qualied electrician according
to national, state and local city codes, regulations or standards.
The unit should be connected to a compatible RCD (Residual Current Device).
Means for full disconnection of the power supply must be incorporated in the xed wiring
in accordance with the wiring rules.
4.3 Electric wiring diagram
a. For power supply: 230V 50Hz
Distribution Box
Power Supply
230V 50Hz
Earthing
Breaker
Fuse
Power Cord
Swimming Pool Heater
Pump Wiring Board
b. For power supply: 400V 50Hz
NOTE:
Your Davey heat pump must be hard wired and correctly earthed.
4.4 References for protecting devices and cable specification
MODEL DHP90 DHP130 DHP170 DHP210 DHP280 DHP3503
Breaker Rated Current (A) 10.5 14.5 18 21 24 12
BreakerRated Residual Action Current (mA) 30
Fuse (A) 10.5 14.5 18 21 24 12
Power Cord (mm2) 3 x 2.5 3 x 2.5 3 x 4 3 x 4 3 X 6 5 X 2.5
Signal cable (mm2) 3 x 0.5
* Above data is subject to modication without notice.
NOTE: The above data is adapted to power cord ≤ 10m. If power cord is >10m, wire diameter must be
increased. The signal cable can be extended to 50mm maximum.

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5. OPERATION GUIDANCE
5.1 Key Function
SYMBOL HEATING ONLY MODELS
1. Power On/Off
2. Wi-Fi setting
Lock/Unlock screen
1. Boost
2. Silence
Temperature Setting
From 18 – 40°C
ATTENTION:
i. The controller has power-down memory function.
ii. The buttons will turn dark when it’s locked.
5.2 Operation Instruction
a. Screen Lock
1) Press for 3 seconds to lock or unlock the screen.
2) Automatic Lock Period: 30 seconds if no operation.
b. Power On
Press for 3 seconds to unlock screen. Press to power on machine.
c. Temperature Setting
Press to display and set temperature.
d. Mode Selection
1) Silence/Boost mode selection.
Press to switch among boost mode , silence mode .
Default mode: boost
Please choose boost mode for initial heating