Heat Pump Water Heater
User Manual
IMPORTANT: Warranty installation declaration form
enclosed for installer to complete and return.
Please read and retain this manual in a safe place.
Contents
Important Information .............................................. 4
About your heat pump ............................................. 5
Operating your heat pump ....................................... 6
Troubleshooting ....................................................... 8
Specications .......................................................... 10
Heat Pump User Manual
Service phone: 0800 ECONERGY (0800 32 66 37)
Service agents: www.econergy.co.nz
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
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Heat Pump User Manual
Important Information
• This product has a classication of 6.101 for appliances not
accessible to the general public
• The appliance is not intended for use by young children or inrmed
persons without supervision
• Ensure young children do not have access to the appliance.
• If the supply cord is damaged, it must be replaced by the
manufacturer or service agent
• The fuse on the electronic controller is 6A/250V. However this
should only be accessed by a qualied Econergy serviceman.
• Warranty and Support – All Econergy Super Ecient Water Heaters
are backed by our Auckland factory with an outstanding 6 year
warranty on parts and labour. Warranty does not apply in areas
with corrosive or hard water unless water softener tted.
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
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Heat Pump User Manual
About Your New Econergy® Heat Pump Water Heater
Congratulations on purchasing an Econergy® heat pump water heater.
Designed and manufactured in New Zealand, Econergy® heat pump water
heaters are being recognised as the best water heating option for your home.
Econergy® heat pump water heater’s slash your water heating bill by
transferring free renewable energy in the air to heat your hot water. Not only
will this save you money while giving you a reliable supply of hot water - by
reducing power consumption you’ll also be doing your bit for our environment.
The Econergy® heat pump water heater uses electricity to drive a heat pump
cycle, which takes the energy in the surrounding air and transfers it into the
water. The process is quite similar to how a refrigerator or air conditioning
unit operates, except the technology has been optimised to produce a steady
supply of reliable hot water at minimum cost.
Installing your Econergy® Heat Pump Water Heater
While installation of an Econergy® unit is a straightforward plumbing and
electrical job, installation of your Econergy® heat pump water heater is best
carried out by Econergy - trained trade certied plumbers and registered
electricians in accordance with detailed installation instructions supplied from
the factory. This ensures that you will get the best possible performance from
your heat pump water heater, irrespective of whether the unit is installed in
a new or existing dwelling. It also means you will enjoy the protection of a
factory-backed three year parts and labour warranty. (Refer to page 11 for
terms and conditions).
In existing homes, Econergy® heat pump water heaters can be conveniently
retrotted to your existing electric hot water cylinder where the cylinder is
post-1988 and in good condition.
For best performance, the Econergy® heat pump water heater can be
connected to an Econergy® duplex stainless steel heat pump ready hot water
cylinder. This will ensure the last few % savings are achieved and ensure the
longest service life of the total system.
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
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Heat Pump User Manual
Operating your Econergy® Heat Pump Water Heater
Your heat pump water heater is supplied with a status indicator and electric
backup unit as shown below.
This small grey box is located adjacent to the hot water cylinder. It informs
the user of the status of the heat pump unit and allows the element to be
manually switched on if required for any reason.
Indicates that power
is on to Econergy®
HPWH
Indicates if the
Econergy® unit is o,
running or has a fault
Indicates Econergy®
unit is in Solar mode
Indicates if backup
element has been
switched on
Allows user
to manually
turn element
on if required:
Position 1:
Power is on
to heat pump,
Position 2:
to backup
element
Normal Operation
Under normal operation the main power switch (usually a white 20 amp
rocker switch located next to the hot water cylinder), and the outdoor switch
next to the heat pump unit must be turned on. The two ball valves on the hot
water cylinder (on the lines going to and from the heat pump) must be open
to allow water to circulate to and from the heat pump water heater.
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
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Heat Pump User Manual
• If power is on to the hot water circuit, the power light on the Status
Indicator (shown on page 6) will be glowing green. (NB: if the power light
is not glowing, the power to the hot water circuit may have been turned
o by the power supply authority, this can happen up to 7 hours per day
and is perfectly normal)
• The status light will be o when the HPWH is not running.
• When the water temperature in the bottom of the tank gets below the pre-
set cut-in temperature, by natural heat loss or from running o hot water,
the heat pump will start running.
• The status light will glow solid red while the heat pump is running.
• When the whole hot water cylinder is heated and hot water is being
drawn back to the heat pump unit, the heat pump unit and the status
light will switch o until heating is required again
• If the ambient temperature drops below -4°C for a period of time then the hot
water element and backup light will glow red. The hot water element and
backup light will turn o once the ambient temperature rises above -4°C.
Maintaining your Econergy® Heat Pump Water Heater
Looking after your Econergy® heat pump water heater is a relatively
straightforward job. We recommend the following guidelines be followed:
• Keep the air inlet and outlet (black louvre and grey rear grille) clear of
obstructions within a 400mm distance
• Do not place objects on top of the outdoor unit or stand on it
• Switch o and cover the unit temporarily if mowing or edge trimming next
to the unit, to avoid debris entering the unit.
• Ensure the condensate drain tray is kept clear of debris
• In coastal areas we recommend coating the unit with a protective coating.
This can be supplied from the factory or by your authorized Econergy® agent
• Every 12 months, switch o the unit at the wall and wash the unit
with soapy water. The nned evaporator (bluish colour behind rear
grille) can be cleaned by spraying a garden hose in between the ns.
NOTE: THE UNIT MUST BE SWITCHED OFF AT THE WALL DURING
ANY CLEANING WITH WATER.
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
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Heat Pump User Manual
Going Away
If going away for an extended period of time, the Econergy® water heater can
be turned o by turning the main isolating power switch o (located adjacent
to the hot water cylinder but not to be confused with the hot water back up
box pictured on page 6). Upon returning, the main white power switch is
simply turned on again and the unit resumes operation automatically.
Note: There may be a time delay of up to 8 minutes until the unit starts
heating.
Troubleshooting
If abnormal operation occurs with your Econergy® heat pump water heater,
please read the following table to see what action (if any) is required.
If there is no hot water, remember that if the unit is connected to a ripple
supply, or night rate supply, the power company can turn o your hot
water supply for up to 7 hours per day! If the power company is turning o
the supply for more than 7 hours per day, or there is a fault with your ripple
control relay, please contact your local power company for service.
If an unrecoverable fault occurs with your Econergy® heat pump unit, then
the status light will ash on and o and an audible alarm will sound. Before
calling your local sales and service agent (refer www.econergy.co.nz for
contact details) or the Econergy® Service team (0800 32 66 37), please
check the following:
Symptom Possible Cause Things to Check
No hot water,
but heat pump
still running
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
a) Whole tank
has been drawn
o
b) heat pump has
lost refrigerant
charge
Estimate water ow volume being used
(a bucket under the shower head will
suce) and if approximately equal to
tank capacity then tank is being dumped.
Reduce shower ow or water usage, or
install larger storage hot water cylinder.
Alarm will sound after several
unsuccessful attempts to heat water.
Switch changeover switch to position
II (Backup element). Call local service
agent www.econergy.co.nz or
0800 ECONERGY (0800 32 66 37)
8
Symptom Possible Cause Things to Check
No hot water,
lights o on
status indicator
a) No power to
hot water cylinder
b) Ripple control
activated
Check all switches are on, there is
power to house and circuit breaker
marked “Hot Water” is ON
Wait several hours until peak load time
is over. If ripple remains out, contact
power company to address the problem.
If hot water is immediately required
contact electrician to override ripple
control
Water
temperature
too low
a) temperature
valve set
incorrectly or
malfunctioning
b) partial loss
of refrigerant
or other
Remove cap from top of tempering
valve and screw in to increase water
temperature. Call plumbing installer if
temperature uctuating or too low
Call local sales and service agent (see
www.econergy.co.nz for local agent or
0800 ECONERGY (0800 32 66 37)
sealed system
malfunction
Hot Water
supply OK but
alarm buzzer
operating and
status light
ashing
a) Unit fault has
occurred and
element is on
Reset heat pump unit by switching main
(white) switch o and on again. Green
light should be lit and unit should start
heating again normally. Check that ball
valves are open. If fault occurs twice in
succession, switch changeover switch
to position II (backup) and call sales and
service agent refer www.econergy.co.nz
or 0800 ECONERGY (0800 32 66 37)
Heat Pump is
not running,
status light o
and backup
a) ambient
temperature
below -4 degrees
Celsius
No action required. Wait unit
temperature rises above -4 deg C and
heat pump operation will recommence
light is on
Water is
dripping from
rear of unit
(behind nned
evaporator)
a) This is normal
as the unit will
remove moisture
in the air above
70% RH (relative
No action required.
humidity)
Heat Pump User Manual
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
9
Heat Pump User Manual
Econergy® HP Series Water Heater Specications
General HP4000LT
Height 520 mm
Width 490 mm
Depth 550 mm
Weight 50 kg
Noise rating @ 1.5m 52 dBA
Circuit Breaker 16 amps
Rated Current RLA 4 amps
Refrigerant R-134a
Refrigerant quantity 590 gm
Ambient Air Temperature -5 to 40
Performance Specications ** HP4000LT
Heat output 3600 W
Rated input 1000 W
Recovery rate 67 L/hr
Eciency (COP) 3.8 W/W
°C
Water / Connections HP4000LT
Min Supply Pressure 50 kPa
Max Supply Pressure 800 kPa
Min/Max Inlet Water Temperature 5 - 50
°C
Flow/Return Connections RP1/2” / 15mm
Condensate Drain 15 mm
Max Total Disolved Solids 250 mg/L
Max saturation index - +0.80
Zone 1 3-8 people
Zone 2 2-6 people
**Rated at EN255 Conditions (15˚C / 15˚C / 60˚C /70%)
(Cold water/ Ambient Air/ Hot Water/70%RH)
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
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Heat Pump User Manual
Heat Pump Water Heater – Six Year Warranty Information
Congratulations on your purchase of a quality Econergy® heat pump water heater.
The Econergy® heat pump water heater has a limited 6 year warranty which
operates concurrently with the 6 year performance guarantee.
The warranty takes eect from the date of the original installation. This warranty
is voided if the heat pump water heater is not installed as per our instruction
and certied as correctly installed and commissioned by the installer.
The warranty covers parts and labour and is an onsite warranty for 3 years and
a back to base warranty for a further 3 years. Back to Base requires you to
deliver to and collect your unit from, our premises at your expense.
In order for this warranty to take eect, the owner must send in the completed
“Installation Declaration Form,” supplied with this manual, to:
Hot Water Heat Pumps Ltd, PO Box 21 586, Henderson, Auckland 0650
or email: info@waterheating.co.nz
Warranty Service Exceptions:
a) Travelling costs for repairs in excess of one hour’s drive from the
service agent’s designated place of business.
b) Consequential loss arising from failure of the product.
c) Additional cost of access to the unit, where it has been installed in an
unusual location.
d) Vandalism, accident or Acts of God.
This warranty does not apply to:
a) Defects or failures due to incorrect or faulty installation. Please read the
installation instructions in the Installation manual and ensure these are
followed.
b) Defects or failure of the heat exchanger caused by hard or corrosive water.
c) Defects or failure caused by blockage of the unit due to foreign material
such as dust or debris e.g. Dog hair, grass, moss etc.
d) Damage to equipment caused by accessory or component used that is not
specied by Econergy®.
e) Inadequate electrical supply, voltage uctuations, incorrect external wiring.
f) The product has been relocated to another property.
Econergy Users Manual Rev D © Hot Water Heat Pumps Ltd 2019
17/02/2019 www.econergy.co.nz
11
0800 33 66 33 www.waterheating.co.nz
Phone 09 838 9444 Email info@waterheating.co.nz
3 Corban Ave, Henderson, Auckland 0612 PO Box 21 586, Henderson, Auckland 0650
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