DAYLIFF HPW150 Installation instructions

HPW
All in One Heat Pump
HPW150 HPW200 & 300

1
2
4. INSTALLATION 12
5. OPERATION AND MAINTENANCE 25
6. TROUBLE SHOOTING 26
7. TERMS OF WARRANTY 27
© Davis & Shirtliff Ltd 2023
Contents herein are not warranted
3. EQUIPMENT CONTENTS 4
2. SYMBOLS & WARNINGS
1. SPECIFICATIONS

Dayliff HPW Heat Pump Hot Water Systems are designed for all domestic water heating
applications that utilise the high efficiency benefits of heat pump technology. The integral
systems combine a hot water storage tank with an efficient heat pump that generates
heat from ambient air by utilising the natural heat generating phenomenon of the gas
evaporation/condensation cycle. This is transferred to the stored water by circulation
through a coil type heat exchanger in the tank. Tank construction is carbon steel with
internal enamel coating and a magnesium anode is fitted for cathodic protection against
corrosion. The tank is lined with high grade thermal insulation for heat retention.
Particular features are:-
0 0
• HPW heat pumps work best under ambient temperature of between -7 C to 43 C
• High quality integral heat pump fitted on top of the hot water cylinder with quiet
GMCC compressor that provides a Coefficient of Performance (COP) of up to
0 0
4.16 (at 20 C Ambient temp, 15 C Water temp) and settable hot water
0
temperature of up to 75 C. This provides up to 80% power savings compared to
conventional element heaters.
• Tube type heat exchanger coiled externally around the water tank for performance
and safety with inbuilt sterilising function
• Integral 2kW electric heating element for temperature boosting
• Digital controller for operational and timer settings and fault indication
• Supplied complete with ozone friendly R134A regrigerant gas for optimal
performance
Dayliff HPW systems are high efficiency, high performance water heaters and are the ideal
solution for all residential hot water supply requirements.
Congratulations on selecting a Dayliff Heat Pump Hot Water Systems.
They are manufactured to the highest standards and if installed and
operated correctly will give many years of efcient and trouble free
service. Careful reading of this Installation Manual is therefore
important, though should there be any queries they should be referred
to the equipment supplier.
1. SPECIFICATIONS
HPW150 HPW200 & 300

2. SYMBOLS & WARNINGS
The unit should be reliably earthed before usage, otherwise
might cause death or injury.
WARNING
Do not remove any labels or parameter plate on instructions
attached .
WARNING
Installation, repair and maintenance should be carried out by
a qualied professional in accordance with local regulation.
WARNING
This is a household appliance and necessary protection
against electric fault should be provided.
TECHNICAL SPECIFICATIONS
Hot Air
Inlet
Cold Water
Outlet
Controller Heat Pump Unit
Water Tank
Drain Outlet
Hot Water Outlet
Electric Heater
Cold Water Inlet
Water Tank Volume, Liters
Heating Capacity, kW
Rated/Max Input Power, kW
Fan Flow
Rated/Max Current, A
Net Dimensions, mm
Net Weight, kgs
Model
500x500x1670
92 105 130
HPW150
150
HPW300
300200
2.5
0.6/3
Side Top
2.7/15
HPW200
620Diax1638 620Diax2038
Inlet/Outlet ¾”

Any modication and improper repair is not advised as it may
cause re, electric shock and injury.
WARNING
Ensure electrical supply is compatible with the Rated Current
value should not be less than 10A and power.
WARNING
Install the equipment in a cool dry place and that is well
ventilated and away from children. The power plug should be
installed about 1.8m above ground for safety
WARNING
Do not install this equipment indoors. As it may cause overow,
noise or indoor temperature to drop drastically.
WARNING
The place must have enough space for installation and
maintenance.
WARNING
Ensure that inlet or outlet airow is not obstructed. Keep away
from wind and combustible gases.
WARNING
Install on a at surface that can bear heat pumps weight and
easy to install vertically. In addition, the surface should not
increase noise or vibrations.
WARNING
High temperature, saline conditions and long term exposure
to harsh elements may decrease lifetime of products. Ensure
proper maintenance for long life. Also avoid installing in sites
with mineral oil, corrosive gases, strong vibrations and strong
electromagnetic waves to extend equipment life.
WARNING
Do not install in kitchens where there is cooking gas and oil
spills and splatters
WARNING
3

Do not touch fan with your hands or other objects else may
result in injury.
WARNING
ŸThe condenser coil is wrapped around the stainless tank, and does, not come in to
contact with water directly, providing more safety and health.
ŸThe maximum outlet water temperature is 60ºC.
ŸFlexible installation is achieved by varying air inlet and outlet duct piping as below;
Equipment is provided with complete isolation between water
and electricity, without electric shock problem, more safety.
NOTE
Refrigerant Outlet
Refrigerant Inlet
Fig 1: Single Coil Layout
3.1 Equipment Contents
Fig 2: Inlet/Outlet Variations
3. INSTALLATION
4

5
ŸThe unit is provided with automatic start-up and shutdown, automatic defrosting by
by way of revising refrigerant cycle to save the extra operation.
Ÿ A non return valve must be installed on the cold water inlet.
ŸEEV: Electronic expansion valve, the opening is regulated according to the discharge
air temperature of compressor.
ŸHigh Pressure Switch: When the discharge pressure of compressor is 27 bar or
higher, the protection switch will be triggered, and if the discharge pressure is down to
20 bar, the protection switch will be recovered
ŸFan: Centrifugal fan with three speeds to draw in air.
ŸCompressor: Concentrates and increases heat to form a very hot gas which is
passed to the heat exchanger to heat pool water.
ŸEvaporator: Copper tube with aluminium type heat exchanger that turns
refrigerant into gas..
ŸEH: Electrical heater for temperature boosting.
This heat pump is heavy and needs atleast two people to move
0
and install it. Also ensure to carry it at an angle no less than 75 .
WARNING
Fig 3: Heat Pump Component Layout
3.2 Siting
ŸEnsure to leave enough space for easy installation and maintenance
Hot water outlet
One-way valve
4-way valve
High pressure switch
Compressor
Cold water inlet
Dryer
Magnesiarods
Evaporator
EEV
EH
Fan

6
Air Outlet
Barrier
Air Inlet
>200mm
>800mm
>200mm
Control Panel
>500mm
>200mm
>200mm
Fig 4: Installation Layout
ŸIf heat pump is installed in the basement or indoor or other airtight spaces, ensure
there is sufficient air circulation. The air duct total length should be equal or less than
6 meters, and the duct diameter should be equal or more than 150 mm.
Condensed
water outlet
Water for
domestic use
mixing valve
Temperature Sensor
Cold Water Inlet
Magnesium Rod
Magnesium Rod
Hot water outlet
Y-Type Filter
Tap Water
Ball Valve
Relief Valve
Drainage
Outlet
Floor Drain
Fig 5: Pipe Line Connection Diagram

7
A
E
B
CD
F
Model
HPW150
HPW200
HPW300
A B C D E F
1670 1214 246 346 198 500
1638 1013 280 380 100 620
2038 1413 280 380 100 620
3.3 Water Pipe Installation Instructions
The relief valve needs to be descaled to remove calcium
carbonate and ensure no obstacles. Outlet temperature of
drainage port may be high and caution must be exercised.
NOTE
ŸKeep the handle of safety valve free and ensure drainage port is kept free of debris.
ŸAfter setting up pipeline, open the valve both the cold and hot water valve to fill the
water tank and close inlet valve when water overflows from water outlet. Inspect the
pipeline and ensure that there is no water leakage.
ŸWhen intake pressure is below 1.5 Bar, a booster pump may be installed. When
intake pressure is greater than 6.5 Bar a relief valve must be installed to protect the
water tank from early failures.
ŸDuring operation, condensed water droplets may be formed, ensure proper drainage
is provided as guided below
Do not use iron pipe to connect to heat pump, instead use CPVC
pipe, PPR pipe or UPVC pipe
WARNING
ŸWater pipes work life should not be less than heat pump’s work life.
ŸInstall relief valve of G1/2’’, 8bar and ensure that the drainage pipe which connects
with the relief valve, is not blocked.
Fig 6: Connection Dimensions

8
Diameter atleast 50mm larger
than heat pump
Max 2.2"
Fig 7: Drainage Layout
3.4 Sitting and Air Duct Installation Instructions
Fig 8: Inlet/ Outlet Duct Designs for HPW200/300
(1) Air inlet and outlet with duct
A+B < 6m
(2) Only air outlet with duct
A< 6m
(3) Only air inlet with duct
B< 6m
Air inlet Air Outlet Air inlet Air Outlet Air inlet Air Outlet
ŸAs a rule, heat pumps should be installed outdoors. However by varying the design of
air intake and outlet ducts, the heat pump can be used to condition cold air in the
room.
ŸIt is recommended to install the unit by only air outlet with duct (Scheme 2 ) in
summer that could charge fresh cold air into room. ( The heat pump is installed
outdoor ).
ŸScheme 3 is preferable in winter where there is other heat source in the room. ( The
heat pump is installed outdoor ).

9
Duct Description
Duct Description Round Duct
ŸThe resistance of duct will decrease air-flow-rate,which will lead to decreased
capacity of unit. The duct length should be no more than 6m or the maximum static
pressure should be within 20Pa, and the quantity bending should be no more than 3.
ŸFor air outlet with duct, when unit is operating, condensate will be generated outside
of the duct, ensure proper drainage. It is recommend to insulate the duct to conserve
heat.
ŸThe unit should be protected from rain, hailstorm and other extreme weather.
Dimensions (mm)
Straight-line pressure drop (Pa/m)
Straight-line length (m)
Bend pressure drop (Pa)
Bend’s quantity
Rectangle Duct Other Shaped Duct
Refer to above data
150x150
<2
<6
<2
<4
<2
<6
<2
<4
150
Fig 9: Locational Installation
ŸIf installed outdoors, reliable water-resistant measures must be taken to protect unit
from water and debris ingress.
ŸAn air filter should be installed at the inlet to trap air debris
Model
HPW150
Power
Supply
Min. Cable diameter
2
(mm )
Manual Switch
(A)
Leakage
Protection
Device
220V/50Hz
>2.5
Size
(continous
length
<30m)
Ground
Wire Capacity Fuse
>ø1.0mm >20 20
Below 30mA
0.1 sec

10
Leakage Protection
Ground Wire
Manual Switch
Power Supply
Leakage Protection
Device
Fig 10: Power Protection
Model
HPW200/300
Power
Supply
Min. Cable diameter
(mm2)
Manual Switch
(A)
Leakage
Protection
Device
220V/50Hz
>2.5
Size
(continous
length
<30m)
Ground
Wire Capacity Fuse
>ø1.0mm >20 20
Below 30mA
0.1 sec
Directly connect power supply wire with hplug when using the
heat pump
NOTE
The external power supply box must be installed with
protection.
WARNING

11
Electric Wiring Diagram
HPW150

12
Terminal
220V 50Hz/~ /
Fan
Capacitor
BL
BK
BR
Comp
C
S R
RD BL
BK
L N
Y GN/Capacitor
BL
PowerIn
BK BR
COM.NO
Contactor
PCB
EEV
BK WH Y BL
High pressure switch
Wire controller
Y GN/
YGN/
RD
E heater- Reset by manual Temperature limiter
RD
BL
BL RD
RD
RD BL
Transformer
GN GREEN
BR BROWN BL BLUE
BK BLACK RD RED WH WHITE
WIRE COLOR CODE
Y YELLOW OR ORENGE
Low speed
RD
N N1 N2 N3
BK
BL
BL
BL
Coil temp.
Ambient temp.
EEV
Exhaust temp.
Water tank temp.
Suction temp.
COM.
O.N.
COMP
4
way
valv e
High speed
4 way valve
E-heater
Reserved
Communication 2
Water
flow
switch
Low
pressure
switch
High
pressure
switch
BL
Reserved
HPW200/300

13
First Time Operation
Cold Water
Inlet
Hot Water
Inlet
Hot Water Inlet
Feeding
Water
Feeding water: when using the unit for the first time (or reuse it after the tank is empty ),
before connecting the unit with power, ensure that the tank is full of water and open both
cold water in and hot water out as below
Operating without water in water tank may result in the
damage of auxiliary E-heater
WARNING
Plug in to connect the unit with power. The LCD screen will light up and is ready to receive
commands. The user can now program as desired.
Water temperature over 50℃ can cause severe burns instantly
or death from scalds. Children, disabled and elderly are at
high risk and must be protected. Water temperature limiting
valves are recommended.
DANGER
ŸWater draining: before cleaning or moving the unit, drain out the water in the water
heater, as in below picture
Cold Water
Inlet
Hot Water
Inlet Hot Water Inlet
Draining
Water
ŸOpen the cold water inlet valve
and hot water outlet valve
ŸWhen there is water flowing out from the
outlet, the tank is full with water. Close
the hot water outlet valve and the water
filling is finished.
ŸClose the inlet valve, Open the
outlet valve,Open the draining
valve
ŸAfter the draining , screw the nut of
the drainage outlet; the water
draining is finished.

14
4. OPERATION
4.1 Control System Specications
(1) Operating condition
ŸVoltage:220V～±10%,50Hz±1Hz.
ŸAmbient temperature: -7～+43℃
ŸStorage temperature: -20～+75℃
ŸRelative humidity: 0～95%RH
ŸTemperature accuracy: ±1℃
(2) Main function
ŸDisplays the temperature and setting temperature, and also can query the coil
temperature, ambient temperature exhaust temperature and so on.
ŸPower cut memory function. When power is cut, the clock will still work.
ŸTiming on/off.
Ÿ Automatic defrosting.
ŸForced defrost.
ŸThe error code display and query
ŸKey-Lock Function
ŸAnti-freezing function
ŸIn the absence of a wire controller or if faulty, the system will run automatically.
Wire Controller and Operation
HPW150
HPW200/300

15
Symbol Status
Constantly bright
Meaning
Extinguished
Heat pump is on
Heat pump is off
Constantly bright At cooling mode
Constantly bright At heating mode
Constantly bright Needs repair
Constantly bright On AUTO mode
Extinguished Currently in the manual set temperature state
Constantly bright This unit is a water connection heat pump
Extinguished This unit is a refrigerant heat pump
Constantly bright Heat pump is on and on defrosting mode
Flashing Heat pump is on and on defrosting delay
Flashing Heat pump is off and on refrigerant recovery status
Constantly bright Electric heater is on for quick heating
Flashing Electric heater is on for disinfection
Constantly bright Current water temperature in the tank
Constantly bright Set water temperature in the tank
Constantly bright Current outlet water temperature
Constantly bright Current inlet water temperature
Display Display actual water temperature, set water temperature and fault code
Constantly bright Current showing celsius temperature
Display Shows real time
Display Timer function is on
Display Currently in the on time working hours
Flashing Set start time for working time
Display Currently off, non working time
Flashing End time of current set working time
Constantly bright/
Extinguished
Timed working period 1, always on when set, and other conditions are
off.
1
Constantly bright/
Extinguished
Timed working period 2, always on when set, and other conditions are
off.
2
Constantly bright Timed working period 3, always on when set, and other conditions are
off.
3

16
Symbol Status
Button
Meaning
Instruction
Constantly bright Start timing water return function
Flashing Start manual water return function
Extinguished Turn off water return (timing/manual) function
Display Currently the return water is in regular timing working period
Flashing Currently set start time of backwater working time
Display Currently the return water is in the non-working hours
Flashing Currently set end time of water return period
Constantly bright/
Extinguished
Timing zero cold water period 1, always on when setting, at other
conditions are off
1
1
Constantly bright/
Extinguished
Timing zero cold water period 2, always on when setting, at other
conditions are off
2
2
Constantly bright
Power/ Exit
Button
The button is locked
1. Press and hold for 1 second to turn on/off
2. In the query state, click once to return to the main interface
Constantly bright The controller is connected to the router
Instruction of the Buttons
Up
1. Press at main interface to set the temperature.
2. Press and hold for 3 seconds in the power on/off state to enter
the query state.
3. In the query status, press and check status.
4. At parameter set status, press to modify parameters
3Down
1. Press at main interface to set the temperature.
2. Press and hold for 3 seconds in the power on/off state to enter
the query state.
3. In the query status, click to status query.
4. Under parameter settling state, click parameter to modify
4Mode
Button
1. In the main interface, press and hold for 3 seconds to start (and
enter zero cold water time setting)/ turn off the timing zero cold
water function; (when parameter 64=1)
2. In the main interface, short press for more than 1 second to
cancel the zero cold water function in this period; (when
parameter 64=1)
3. In the main interface, short press within 1 second to
activate/deactivate the manual zero cold water function. (when
parameter 64=1)
4. Under the main interface, click to switch between heating and
cooling operation status (when parameter 64=0)
5Time
1. In the main interface, press to enter the clock setting, and press
to switch between “hour” and “minute”.
2. In the main interface, press and hold for 3 seconds to start (and
enter or turn off the programmed time setting).

17
Button Instruction
6Set
1. Under the main interface, press to switch between
automatic/manual temperature control mode. “AUTO” is
displayed in the automatic mode and is not displayed when
manual
2. In the main interface, press and hold for 3 seconds to enter the
parameter interface.
7
+
+
Button
combination
At main interface when ON, press and hold for 3 seconds to turn
on/off quick heating
Within 5 minutes after power-on, press and hold for 5 seconds to
restore the factory parameter settings.
• When the controller is in the normal display state, press “ ” button for more than 1
second to switch the controller to the power on or off state.
• When heat pump is ON,“ ” lights up and is normally controlled.
• When heat pump is off,“ ”does not light up and the controller stops controlling
output.
• When the controller is powered on for the first time, it is in the off state. Then from the
2nd time, the state will be same as last time before power off.
Set the temperature control mode:
• When the controller is in normal display state, press the “M” key to switch between
manual temperature control mode and automatic temperature control mode.
• The “AUTO” symbol lights up in the automatic temperature control mode and not in
the manual mode.
• In the manual mode, the heating/cooling water temperature is controlled according
to the manual temperature setting value;
• In the automatic mode, the hot water temperature is automatically adjusted
according to the ambient temperature for control.
At main interface when ON, press and hold for 3 seconds to turn
on/off defrosting
+
+
+
+
Within 5 minutes after power-on, at the main interface of
shutdown, press and hold for 10 seconds to enter/exit refrigerant
charging or recycling mode.
Under the main interface, press and hold for 10 seconds to turn
on/off the “sterilization” function manually (Parameter 66=1 is
valid)
+
4.2 Operation Instructions
Turn ON/OFF the heat pump

18
4.3 Set the water temperature:
• In manual mode, press“∧” or “∨” key to enter the water temperature setting state.
Then starts to display the setting symbol and display the corresponding water
temperature set according to the current cooling or heating mode.
• When the water temperature is set, press the “∧” or “∨” button to increase or decrease
the water temperature setting value; Press and hold the “∧” or “∨” button for more
than 1 second to quickly increase or decrease the water temperature setting.
• Press and release the “ ” button immediately or no button operation in 5 seconds,
controller will exit the modification window and return to the normal display state.
• When the parameter value is modified, it will flash for 2 seconds and then return to the
normal display state.
• In the automatic mode, press the “∧” or “∨” key to enter the automatic temperature
adjustable parameter setting.
• Then display the symbol and corresponding deviation setting value.
• Press “∧” or “∨” to increase or decrease the value.
• Press “∧” or “∨” for more than 1 second to quickly adjust or decrease the setting value;
Press and Immediately release the “ ” button to exit the modification and return to the
normal display state. When the parameter value is modified, it flashes for 2 seconds
and then returns to the normal display state.
4.4 Real time clock settings
• In the main interface, click the “ ” button to enter the real-time clock setting interface.
Press the “ ” button, the hour part of the number will flash, press “ ∧ ” or “∨ ”, to set
the hour on the clock.
• Press the “Time” button again and set minutes by pressing “ ∧ ” or “ ∨ ”
• After the minutes are set, press the “ ” button again to confirm the time setting and
return to the main interface;
• In the real-time clock setting interface, press the “ ” button to confirm the current
real-time clock setting value and return to the main interface.
• In the real-time clock setting interface, if there is no button operation for 5 seconds,
the current real-time clock setting value is confirmed, and the main interface is
returned.
4.5 Programmed Function Settings
It is also possible to schedule working sequence for the heat pump by selecting three pre
determined time spans as follows;
• When enabled, enter the duration of timed operation setting.
• Press and hold the “ ” button for 3 seconds in the main interface to enable or disable
the working mode.
• Press and release “ ” to switch between the hour and minute of the start/end time of
the three time slots in sequence., The value will flash when switching to the
corresponding value of the certain time slot.
• At the same time, “ON” or “OFF” symbol will flash, Press “∧ ” or “∨” to increase or
decrease the corresponding value. After setting the timed period, press and
immediately releasing the “switch” button , the changes will be saved and the panel
returns to normal display state.