Maytronics ecoclear EC 12KW User manual

Inverter Heat Pump
Installation
& Operation
Manual
EC 12KW
EC 16KW
EC 20KW
EC 24KW
Should the installer or owner be unfamiliar with the correct installation or operation
of this type of equipment, you should contact the distributor/manufacturer for the
correct advice before proceeding with the installation or operation of this product.
The equipment operator or owner must be provided with this owner’s manual.
Manufactured by

2Inverter Heat Pump Owner’s Manual
CUSTOMER SERVICE / TECHNICAL SUPPORT
If you have questions about ordering Maytronics Ecoclear® replacement parts, and pool prod-
ucts, please contact:
Head Oce: Brisbane, Queensland
Address: 2/91 Rudd Street (entry o Boundary Road), Oxley QLD 4075
Phone Number: 1300 693 657
Email: [e-mail]
Support Contact

3
Inverter Heat Pump Owner’s Manual
Notices and Warnings����������������������������������������������������������������������������������������������������������������������������4
Ecoclear® Contents and Overview ������������������������������������������������������������������������������������������������������6
Ecoclear® Inverter Heat Pump Package Contents ......................................................................................................................................6
Ecoclear® Inverter Heat Pump Overview........................................................................................................................................................6
Dimensions & Specifications ���������������������������������������������������������������������������������������������������������������� 7
Dimensions .................................................................................................................................................................................................................. 7
Specifications ..............................................................................................................................................................................................................8
Installation����������������������������������������������������������������������������������������������������������������������������������������������9
Location and Clearances......................................................................................................................................................................................10
Anchor Clamp Installation ...................................................................................................................................................................................10
Water Connections to the Heat Pump............................................................................................................................................................ 11
Plumbing Connections - Standard................................................................................................................................................................... 12
Plumbing Connections - Separate Circulation System............................................................................................................................ 13
Multiple Heater Type Installation ..................................................................................................................................................................... 14
Multiple Heat Pump Installation....................................................................................................................................................................... 14
Electrical Connections ��������������������������������������������������������������������������������������������������������������������������15
General Information............................................................................................................................................................................................... 15
Equipotential Bonding........................................................................................................................................................................................... 15
Main Power................................................................................................................................................................................................................ 15
Configuration�����������������������������������������������������������������������������������������������������������������������������������������17
Control Panel..............................................................................................................................................................................................................17
Setting the Clock...................................................................................................................................................................................................... 19
Setting the On/O Timer ..................................................................................................................................................................................... 21
Setting the Mute Timer ........................................................................................................................................................................................ 21
Menu / Setting Parameters................................................................................................................................................................................ 21
Forced Defrost Mode............................................................................................................................................................................................. 21
Turning Heat Pump On and O........................................................................................................................................................................ 20
Setting the Temperature and Mode .............................................................................................................................................................. 20
Status Query..............................................................................................................................................................................................................22
Scenario (Operating Mode) ................................................................................................................................................................................ 23
Connecting the Heat Pump to Automation���������������������������������������������������������������������������������������24
Pool/Spa Heating Combinations (Recommended Configurations) ................................................................................................. 24
Maintenance & Troubleshooting ��������������������������������������������������������������������������������������������������������26
Water Chemistry..................................................................................................................................................................................................... 26
Inspection and Service ........................................................................................................................................................................................ 26
Owner Inspection................................................................................................................................................................................................... 26
Professional Maintenance and Service.........................................................................................................................................................27
Winterising .................................................................................................................................................................................................................27
Troubleshooting...................................................................................................................................................................................................... 29
System Protections / Error Codes ................................................................................................................................................................... 30
Replacement Parts ������������������������������������������������������������������������������������������������������������������������������34
Wiring Diagrams�����������������������������������������������������������������������������������������������������������������������������������35
Environmental Information�����������������������������������������������������������������������������������������������������������������38
Disposal Requirements ....................................................................................................................................................................................... 38
Table of Contents
Table of Contents

4Inverter Heat Pump Owner’s Manual
Important Notice This manual provides installation and operation instructions for the prod-
uct. Consult Maytronics with any questions regarding this product.
Attention Installer: This manual contains important information about the installation, opera-
tion and safe use of this product. Leave this manual with the owner and/
or operator of this product after installation.
Attention User: This manual contains important information that will help you in operat-
ing and maintaining this product. Please retain it for future reference.
WARNING
Before installing this product, read and follow all safety warning notices
and instructions which are included. Failure to follow safety warnings and
instructions can result in severe injury, death, or property damage.
Call 1300 693 657 for additional free copies of these instructions.
Read and Follow all Safety Instructions
This product is designed and manufactured for safe and reliable service when installed, operated and
maintained according to the information and installation codes referred to in this manual.
This is a safety alert symbol. When you see this symbol in this manual or on the product, look
for one of the following signal words; DANGER, WARNING, CAUTION and NOTICE and comply with the
information. Be alert to the potential hazard. Ensure to read and comply with all of the warnings and
cautions in this manual.
DANGER
Risk of Electrical Shock or Electrocution!
This product must be installed by a licensed electrician. Installations must
comply with:
- The Wiring Rules AS/NZS 3000.
- All applicable local codes and ordinances.
- Always disconnect power at the circuit breaker before servicing the
product. Failure to do so could result in death or serious injury to installer,
service person, pool users, or others due to electrical shock.
- Improper installation can create an electrical shock hazard that can re-
sult in death or serious injury.
WARNING
Water temperature in excess of 38 degrees Celsius may be hazardous to
your health. Prolonged immersion in hot water may induce hyperther-
mia. Hyperthermia occurs when the internal temperature of the body
reaches a level several degrees above normal body temperature of 37°C.
The symptoms of hyperthermia include drowsiness, lethargy, dizziness,
fainting, and an increase in the internal temperature of the body.
The eects of hyperthermia include: 1) Unawareness of impending dan-
ger. 2) Failure to perceive heat. 3) Failure to recognize the need to leave
the spa. 4) Physical inability to exit the spa. 5) Foetal damage in pregnant
women. 6) Unconsciousness resulting in danger of drowning.
WARNING To reduce the risk of injury, do not permit children to use this product
unless they are closely supervised at all times.
WARNING The use of alcohol, drugs, or medication can greatly increase the risk of
fatal hyperthermia in hot tubs and spas.
Notices and Warnings
Notices and Warnings

5
Inverter Heat Pump Owner’s Manual
WARNING The unit should be located on a solid, level, horizontal surface and se-
curely fixed. Ensure free air-flow to all sides of the unit.
WARNING
Never use an extension cable to connect the unit to the electric power
supply
If there is no suitable earthed supply available, have one installed by a
qualified electrician.
WARNING
Do not move/repair the unit yourself - Before carrying out any main-
tenance, service or repair work, the product must be isolated from the
mains electrical supply. To prevent possible injury, only qualified engi-
neers should carry out these works.
WARNING
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience
and knowledge, unless they have been given supervision or instruction
concerning the use of the appliance by a person responsible for their
safety. Please ensure that young children are supervised to ensure that
they do not play with the appliance.
WARNING
Do not install the unit in a place where there is a chance of flam-
mable gas leaks. If there is a gas leak and gas accumulates in the
area surrounding the unit, it could cause an explosion.
WARNING
Water Connections - All plumbing connections should be carried
out as per the instructions in this manual. Failure to do so could
result in water damage to property.
WARNING
Cleaning the Unit - To prevent injury always shut the power ‘OFF’
when cleaning or servicing the unit. Avoid contact with the fan
when running as this will cause serious injury.
WARNING Error Codes - If an error code occurs or you can smell burning, iso-
late the unit immediately and call your local installer.
General Installation Information
1. All wiring work must be performed by a licensed electrician, and must conform to all national,
state, and local codes.
2. Installer to provide drainage of compartment for electrical components.
3. Power to all circuits must be supplied via a suitably sized Residual Current Device (RCD) in the
fixed wiring.
4. An Earth terminal is located inside the supply terminal box. To reduce the risk of electric shock,
this terminal must be connected to the grounding means provided in the electric supply service
panel with a continuous copper wire equivalent in size to the circuit conductors supplying this
equipment and as per the wiring rules.
5. The electrical supply for this product must include a suitably rated switch or circuit breaker to
open all ungrounded supply conductors to comply with the Wiring Rules. The disconnecting
means must be readily accessible to the occupant.
6. Supply conductor must be sized to support all loads.
Notices and Warnings (Continued)
Notices and Warnings

6Inverter Heat Pump Owner’s Manual
Contents
• Heat Pump Unit
• Owners Manual
• Barrel unions x2
• Drain Hose x1
• Anti-vibration pads x4
Overview
The swimming pool heat pump is one of the most economical ways of heating your swimming pool ef-
ficiently. Using the free renewable energy from the air,it is up to 14 times more ecient than traditional
heating. The swimming pool heat pump extends your swimming season and gives you comfort at high
level. You could enjoy swimming not only in summer,but also in spring,autumn and even winter time.
ECO Friendly
The Heat Pump uses R32 Refrigerant which is ozone friendly and dramatically reducing carbon emis-
sions with a low GWP (Global Warming Potential).
Titanium heat exchanger
The advanced titanium heat exchanger guarantees a longer life span, free of corrosion. It can be used
with all types of water treatment including chlorine, iodine, bromine and salt water.
Multiple functions
- Cooling and heating functions available
- Auto operation, Auto-restart, Auto defrost
- Auto timer on/o: no human attendance is required
- Wide ambient working range: -7°C to 43°C
Reliable operation
The Heat Pump has several built in safety features, which include insucient water flow protection,
high/low pressure protection, overload protection, compressor protection.
Self-diagnosis
When there is malfunction,the swimming pool heat pump will make self-diagnosis by displaying error
code on the control panel. To identify the problem,please refer to ERROR CODES pages in this manual.
Contents and Overview

7
Inverter Heat Pump Owner’s Manual
Figure 1: Dimensions
Key
Dimensions
EC 12KW EC 16KW EC 20KW
EC 24KW
A625mm 775mm 855mm
B1015mm 1025mm 1159mm
C350mm 385mm 428mm
D425mm 475mm 520mm
E535mm 615mm 790mm
F385mm 430mm 467mm
G95mm 95mm 100mm
H350mm 350mm 465mm
Dimensions
Dimensions & Specifications
B
A
C
D
E
F
G
H
Inlet
Outlet

8Inverter Heat Pump Owner’s Manual
Specifications
Description Ecoclear® 12kW
Inverter Heat Pump
Ecoclear® 16kW
Inverter Heat Pump
Part No� EC 12KW EC 16KW
Ambient 270C
Water 260C in 280C
out
80% Humidity
Capacity (kW) 2.5~12.0 3.1~16.0
Power (kW) 0.18~1.90 0.22~2.54
COP 14.1~6.3 13.9~6.3
Ambient 150C
Water 260C in 280C
out
70% Humidity
Capacity (kW) 2.1~9.0 2.4~12.6
Power (kW) 0.29~1.91 0.34~2.57
COP 7.1~4.7 7.0~4.6
Ambient 350C
Water 290C in 270C
out
Capacity (kW) 3.75 5.61
Power (kW) 1.58 2.2
EER 2.37 2.55
Power Supply 230-240VAC 50Hz 230-240VAC 50Hz
Max Current 10.9 16.6
Compressor Type Rotary Inverter Rotary Inverter
Water Flow (LPM) 66 86
Sound Pressure (1m dBa) 41-52 42-53
Refrigerant R32 480g R32 600g
Description Ecoclear® 20kW
Inverter Heat Pump
Ecoclear® 24kW
Inverter Heat Pump
Part No� EC 20KW EC 24KW
Ambient 270C
Water 260C in 280C
out
80% Humidity
Capacity (kW) 3.70~20.0 6.5~24.3
Power (kW) 0.27~3.08 0.45~3.74
COP 13.8~6.2 14.5~6.5
Ambient 150C
Water 260C in 280C
out
70% Humidity
Capacity (kW) 2.6~14.5 4.5~19.0
Power (kW) 0.38~3.15 0.62~3.88
COP 6.9~4.6 7.3~4.9
Ambient 350C
Water 300C in 280C
out
41% Humidity
Capacity (kW) 7.85 8.93
Power (kW) 3.18 3.43
EER 2.47 2.61
Power Supply 230-240VAC 50Hz 230-240VAC 50Hz
Max Current 17.5A 22A
Compressor Type Rotary Inverter Rotary Inverter
Water Flow (LPM) 100 141
Sound Pressure (1m dBa) 43-54 44~55
Refrigerant R32 670g R32 1150g
Dimensions & Specifications

9
Inverter Heat Pump Owner’s Manual
Installation
Installation
Only a qualified service person should install the Ecoclear® TM Heat Pump. Before installing this
product, refer to the Important Warning and Safety Instructions on page 4.
Materials Needed for Installation
The following items are needed and are to be supplied by the installer for all heat pump
installations:
1. Plumbing connections (50mm).
2. Level surface for proper drainage.
3. Suitable electrical supply line. See rating plate on unit for electrical specifications. A junction
box is not needed at the heat pump; connections are made inside of the heat pump electrical
compartment. Conduit may be attached directly to the heat pump jacket.
4. Electric isolation switch that will interrupt all power to the unit. This switch must be
within line of sight of the heat pump. Check local codes and wiring rules AS/NZS 3000 for
requirements.
5. Watertight conduit to run the electrical supply line.
Equipment Pad
For proper drainage of condensation and rain water, place the heat pump on a flat slightly
pitched surface, such as a concrete or fabricated slab (pad). If possible, place the pad at the
same level or slightly higher than the filter system equipment pad.
Note: Be sure that the pad is pitched not more than 20mm per metre in any direction as
needed for runo.
Drainage and Condensation
Condensation occurs from the evaporator coil while the unit is running, and drains at a steady
rate (up to 20L per hour), depending upon ambient air temperature and humidity. The more
humid the ambient conditions, the more condensation will be produced. The bottom of the
unit acts as a tray to catch rainwater and condensation. Keep the drain holes, located on the
bottom pan of the base of the unit, clear of debris.
Roof Run-o
Make sure the heat pump is not located where large amounts of water may run-o from
a roof into the unit. Sharp sloping roofs without gutters will allow massive amounts of rain
water, mixed with debris from the roof to be forced through the unit. A gutter or down spout
may be needed to protect the heat pump.
Lawn Sprinklers
Avoid placing lawn sprinkler near the heater - they can spray water into the heater and void
the warranty. Be sure to direct any spraying water away from the heater. Note the wind
direction to be sure water from sprinklers is not blown toward the heater. Sprinkler heads
can produce high water pressure and spray at an angle, dierent from typical rain and humid
weather. Also, sprinklers connected to a well water system can cause mineral build up on the
evaporator coils and electronics.
Coastal Environments
Salt spray from coastal environments can cause corrosion of certain heat pump components,
which is not covered by warranty. Care and attention should be taken to locate the heat pump
to avoid salt spray from the surrounding environment.

10 Inverter Heat Pump Owner’s Manual
Location and Clearances
All criteria given in the following sections reflect minimum clearances. However, each
installation must also be evaluated, taking into account the prevailing local conditions such as
proximity and height of walls, and proximity to public access areas. The Ecoclear® Heat Pump
must be placed to provide clearances on all sides for maintenance and inspection.
1. At least 2.5m access must be available in the front and 300 mm on all the other sides of the
heat pump for service and proper air flow. (Manufacturer’s recommendation).
2. If the heat pump is to be installed under a cover or under a vertical overhang, the unit must
have a minimum of 500mm clearance from the top of the heat pump. (Manufacturer’s
recommendation).
3. Install a minimum of 3.5m from the inside wall of the pool or spa unless the heat pump is
separated from the pool or spa by a 1.8m high solid fence or other permanent barrier.
4. Install heat pump a minimum of 300mm from the wall of the house.
5. Allow 500mm clearance above the heat pump for service access.
6. Base must be level. It is important that condensate and rain water will drain away from the
drip tray. Any unevenness in the base will cause water to pool in the drip tray and corrosion
may occur.
SLAB
2.5m
min.
CLEARANCE
EVAPORATOR
COILS
SLAB
AIR
FLOW
300mm
(min)
IN
AIR FLOW OUT
OPEN
SERVICE
ACCESS
500mm
(min)
700mm
(min)
NO SPRINKLERS
700mm
(min)
Figure 2: Location and Clearances
Anchor Clamp Installation
Installation of the anchor clamps is recommended in all installations. Anchor clamps hold the
heat pump to the equipment pad in order to withstand high winds, accidental movement and
excessive vibration.
To install the anchor clamps:
1. Be sure the heat pump is in its permanent location on the equipment pad.
2. Locate the clamps at the base of the heat pump in the four (4) locations, shown in the
image to the right.
Note: Bolts and bolt anchors are not included with the heat pump. The installer must
provide 1/4” x 1-3/8” stainless steel anchor bolts and the appropriate size concrete anchor to
mount the clamp to the equipment pad. Be sure to check local codes.
3. Fit the anti-vibration pad (included) under each anchor clamp.
Installation