Pentair ULTRATEMP HXi User manual

ULTRATEMP
TM HXi
INVERTER HEAT PUMP
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.

Page 2
CUSTOMER SERVICE / TECHNICAL SUPPORT
If you have questions about ordering Pentair replacement parts, and pool products, please use the
following contact information:
Customer Service
Australia Wide (8:30 A.M. to 5:00 P.M. AEST & AWST)
Phone: [phone]
e-mail: [e-mail]
Web site: visit www.pentairpool.com.au to nd information about Pentair products.
Technical Support
Melbourne, Victoria (8:30 A.M. to 5:00 P.M. AEST)
Phone: [phone]
e-mail: [e-mail]
Eco Select®
The Eco Select® brand identies our most eco-friendly products
As the global leader in pool and spa equipment, we’ve made a strong commitment to develop and offer
the most environmentally responsible products available.
When you see the Eco Select® brand on one of our products, you’ll know it is our “greenest” and most
ecient product in that equipment category.
These products do the best job of saving energy, conserving water, reducing noise, or otherwise
contributing to a more environmentally responsible equipment system. In every case, a product that
earns the Eco Select brand is clearly our “greenest” and most ecient choice.
Pentair is a member of the product stewardship program Refrigerant Reclaim Australia
This pool water heat pump contains the synthetic greenhouse gas refrigerant R32. By law, the refrig-
erant must be recovered prior to dismantling and scrapping.
Most local government waste facilities, metal merchants and recyclers provide recovery services.
Please ensure the refrigerant will be recovered when disposing of this unit.
For more information please visit www.refrigerantreclaim.com.au

Page 3
Notices and Warnings�����������������������������������������������������������������������������������������������������������������������������4
UltraTemp Contents and Overview ��������������������������������������������������������������������������������������������������������6
UltraTemp®HXi Package Contents........................................................................................................................................6
UltraTemp®HXi Overview......................................................................................................................................................6
Dimensions & Specications����������������������������������������������������������������������������������������������������������������� 7
Dimensions ..........................................................................................................................................................................7
Specications......................................................................................................................................................................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
Conguration�����������������������������������������������������������������������������������������������������������������������������������������17
Control Panel ......................................................................................................................................................................17
Setting the Clock................................................................................................................................................................ 19
Setting the On/Off Timer.................................................................................................................................................... 21
Setting the Mute Timer....................................................................................................................................................... 21
Menu / Setting Parameters................................................................................................................................................. 21
Forced Defrost Mode.......................................................................................................................................................... 21
Turning Heat Pump On and Off ...........................................................................................................................................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 Congurations) .....................................................................................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

Page 4
Important Notice This manual provides installation and operation instructions for the product.
Consult Pentair with any questions regarding this product.
Attention Installer: This manual contains important information about the installation, operation
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 operating 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 instruc-
tions can result in severe injury, death, or property damage. Call 1300-137-344
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 main-
tained 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 per-
son, pool users, or others due to electrical shock.
- Improper installation can create an electrical shock hazard that can result 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 hyperthermia. Hyper-
thermia 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 effects of hyperthermia include: 1) Unawareness of impending danger. 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) Un-
consciousness 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

Page 5
WARNING The unit should be located on a solid, level, horizontal surface and securely
xed. Ensure free air-ow 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 qualied
electrician.
WARNING
Do not move/repair the unit yourself - Before carrying out any maintenance,
service or repair work, the product must be isolated from the mains electrical
supply. To prevent possible injury, only qualied engineers 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 ammable
gas leaks. If there is a gas leak and gas accumulates in the area sur-
rounding 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, isolate
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 xed wir-
ing.
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 readi-
ly accessible to the occupant.
6. Supply conductor must be sized to support all loads.
Notices and Warnings (Continued)
Notices and Warnings

Page 6
UltraTemp®HXi Package Contents
• Heat Pump Unit.
• Owners Manual.
• Barrel unions x2
• Drain Hose x1.
• Anti-vibration pads x4.
UltraTemp®HXi Overview
The swimming pool heat pump is one of the most economical ways of heating your swimming pool eciently.
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 emissions 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/off: 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 ow 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.
UltraTemp Contents and Overview
Contents and Overview

Page 7
Figure 1: Dimensions
Key
Dimensions
UTHP-9-HXi,
UTHP-12-HXi UTHP-16-HXi
UTHP-20-HXi,
UTHP-24-HXi,
UTHP-28-HXi
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 & Specications
B
A
C
D
E
F
G
H
Inlet
Outlet

Page 8
Specications
Description UltraTemp 9kW
Inverter
UltraTemp 12kW
Inverter
UltraTemp 16kW
Inverter
Part No� UTHP-9-HXi UTHP-12-HXi UTHP-16-HXi
Ambient 270C
Water 260C in 280C out
80% Humidity
Capacity (kW) 2.3~ 9.0 2.5~12.0 3.1~16.0
Power (kW) 0.16~1.41 0.18~1.90 0.22~2.54
COP 14.2~6.4 14.1~6.3 13.9~6.3
Ambient 150C
Water 260C in 280C out
70% Humidity
Capacity (kW) 1.7~7.0 2.1~9.0 2.4~12.6
Power (kW) 0.24~1.46 0.29~1.91 0.34~2.57
COP 7.2~4.8 7.1~4.7 7.0~4.6
Ambient 350C
Water 290C in 270C out
Capacity (kW) 3.15 3.75 5.61
Power (kW) 1.4 1.58 2.2
EER 2.25 2.37 2.55
Power Supply 230-240VAC 50Hz 230-240VAC 50Hz 230-240VAC 50Hz
Max Current 8.4 10.9 16.6
Compressor Type Rotary Inverter Rotary Inverter Rotary Inverter
Water Flow (LPM) 53 66 86
Sound Pressure (1m dBa) 39-48 40-49 41-50
Refrigerant R32 430g R32 480g R32 600g
Description UltraTemp 20kW
Inverter
UltraTemp 24kW
Inverter
UltraTemp 28kW
Inverter
Part No� UTHP-20-HXi UTHP-24-HXi UTHP-28-HXi
Ambient 270C
Water 260C in 280C out
80% Humidity
Capacity (kW) 3.70~20.0 6.5~24.3 7.1~28.2
Power (kW) 0.27~3.08 0.45~3.74 0.49~4.41
COP 13.8~6.2 14.5~6.5 14.3~6.4
Ambient 150C
Water 260C in 280C out
70% Humidity
Capacity (kW) 2.6~14.5 4.5~19.0 5.1~21.0
Power (kW) 0.38~3.15 0.62~3.88 0.71~4.38
COP 6.9~4.6 7.3~4.9 7.2~4.8
Ambient 350C
Water 300C in 280C out
41% Humidity
Capacity (kW) 7.85 8.93 11.78
Power (kW) 3.18 3.43 4.44
EER 2.47 2.61 2.65
Power Supply 230-240VAC 50Hz 230-240VAC 50Hz 400-415V 3~ 50Hz
Max Current 17.5A 22A 11A
Compressor Type Rotary Inverter Rotary Inverter Rotary Inverter
Water Flow (LPM) 100 141 158
Sound Pressure (1m dBa) 42-51 44~55 45~56
Refrigerant R32 670g R32 1150g R32 1350g
Dimensions & Specications

Page 9
Installation
Installation
Only a qualied service person should install the UltraTempTM Heat Pump. Before installing this prod-
uct, 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 specications. 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 at 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 lter system equipment pad.
Note: Be sure that the pad is pitched not more than 20mm per metre in any direction as needed for
runoff.
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-off
Make sure the heat pump is not located where large amounts of water may run-off 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 war-
ranty. 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 pres-
sure and spray at an angle, different 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.

Electrical Installation
Location and Clearances
All criteria given in the following sections reect 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 UltraTemp® 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 ow. (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

Page 11
4. Mark the position of the hole in each clamp on the equipment pad.
5. Use a masonry drill bit and drill a hole in the cement with a diameter as determined by the concrete
anchor, at each of the marks on the equipment pad. The hole should be approximately 40mm deep.
6. Insert a bolt anchor into each of the holes. Be sure the anchors are set completely into the holes.
7. Position the anchor clamps so that the holes in the clamps are over the bolt anchors. Be sure that
the clamp hooks are over the lip of the heat pump base.
8. Insert an anchor bolt through each clamp into the anchor and tighten to secure the clamp and heat
pump to the equipment pad.
700mm
(min)
700mm
(min)
300mm
(min)
2.5m
(min)
Clearance
HEAT PUMP
ANCHOR CLAMP
BOLT ANCHOR
(installer provided)
HEAT PUMP
BASE
1-3/8" HEX BOLT
(installer provided)
CONCRETE
EQUIPMENT PAD
ANTI-VIBRATION
PAD
Figure 3: Anchor Clamp Installation
Water Connections to the Heat Pump
2” / 50mm quick connect union ttings have been supplied for the water inlet and outlet connections.
Filtered cool water is plumbed to the inlet, as labelled. Heated water ows through the outlet, as
labelled. PVC piping (AS/NZS 1477) should be connected to the heat pump. The unions, provided with
the unit, accept 50mm PVC pipe.
OUTLET
INLET
Figure 4: Water Connections to the Heat Pump
Anchor Clamp Installation (Continued)
Installation

Page 12
Plumbing Connections - Standard
The image below shows the standard plumbing layout with a single UltraTempTM Heat Pump unit.
Arrangement of pool system components (other than the standard plumbing image below), can affect
the operation of the heat pump.
Note: Be advised that when pool equipment is located below the pool surface a leak can result in
large-scale water loss or ooding. Pentair is not responsible for such water loss or ooding or dam-
age.
The heat pump should be connected to a ltration circuit through a by-pass which consists of 3
valves. It is imperative that the by-pass is placed after the pump and the lter. These valves allow to
regulate the water ow which passes through the heat pump and to isolate the heat pump completely
for any maintenance work, without cutting the ltration ow.
If your installation is equipped with water treatment devices (chlorine, bromine feeder, salt water
chlorine generator, others) the by-pass must be installed before the water treatment devices, with a
non-return check valve between the by-pass and water treatment devices.
Water inlet and outlet are designed to be connected to rigid pressure PVC tube (for swimming pool)
50mm, directly glued to the union connectors provided.
Water pipes must be xed on the oor or the walls, so the heat pump will not support the weight of
the water inside the plumbing.
SALT CHLORINATOR
OR FEEDER
TO POOL/SPA
PUMP
FROM POOL/SPA
FILTER
BYPASS VALVE MANIFOLD
(RECOMMENDED)
CHECK VALVE
Figure 5: Plumbing Connections - Standard Circulation System
Installation

Page 13
Plumbing Connections - Separate Circulation System
The UltraTemp heat pump can also be connected on plumbing separate to the main ltration system.
In this conguration the pump will take water from separate pool outlets and ow directly into the
heat pump. A lter is not essential in this conguration, however it may be required in circumstanc-
es where there is large debris in the water, or poor water quality, which could cause blockages in the
heat pump.
PUMP
FROM POOL/SPA
BYPASS VALVE MANIFOLD
(RECOMMENDED)
TO POOL/SPA
Figure 6: Plumbing Connections - Separate Circulation System
The heat pump should be connected through a by-pass which consists of 3 valves. These valves allow
to regulate the water ow which passes through the heat pump to optimise performance and also
to isolate the heat pump for service. The valve network is not required when using a variable speed
pump, in this conguration, as the pump can be adjusted to optimise the ow through the heat pump.
When installing the pool plumbing for this conguration, at least two pool outlets shall be used with
minimum separation as per AS1926.3. Ensure that the plumbing conguration of the pool outlets and
the pool outlet covers are compliant to AS1926.3.
Figure 7: Twin Safety Suctions
In this conguration, the circulation pump can be powered by the heat pump. Refer to the electrical
wiring diagram for connection details and ensure this work is undertaken by a qualied electrician in
accordance with the wiring rules.
Installation

Page 14
Multiple Heater Type Installation
The Pentair UltraTemp heat pump may be used in conjunction with a gas or electric heater or any
combination of heat sources including solar. When using multiple heater types, all heat sources
should be plumbed in series to work correctly and eciently. A recommended plumbing layout for a
heat pump / heater / solar combination heating system for a pool / spa combination is shown below.
Your system may not contain all of these components, but the basic plumbing will apply by eliminating
the component in the illustration that is not a part of your system. Each heater should be activated
electronically and not operated simultaneously.
GAS
HEATER
F R OM SOLAR
FI LTE
R
S
A
SPA
INTAKE
POOL
RETURN
SPA
RETURN
POOL
RETURN
S
P
M
12" min.
(305 mm)
HEAT PUMP
CHECK
VALVE
FROM SOLAR
TO SOLAR
PUMP
POOL
DRAIN
SPA
DRAIN
CHECK
VALVE
SPA
MAKE-UP
Figure 8: Multiple Heat Source Conguration
Multiple Heat Pump Installation
When installing multiple heat pumps, they shall be plumbed in parallel in accordance with the below
gure.
Extend 300mm
past heater inlet
for hydraulic
balancing.
Flow Meter
50mm Pipe
Flow Meter
To Pool
Check vlaves
will help with
system balancing
250mm
80mm Pipe
Clearance for
service access.
250mm
50mm Pipe 50mm Pipe
80mm Pipe
50mm Pipe
Extend 300mm
past heater inlet
for hydraulic
balancing.
Ball-valves for bypass
and isolation
From Pump/Filter
Figure 9: Multiple Heat Pumps Conguration
Installation

Page 15
Electrical Connections
General Information
Wiring connections must be made exactly as shown in the wiring diagram found on the inside of the
heat pump access panel; see the wiring diagrams on page 35.
The UltraTempTM Heat Pump must include a denite means of grounding and bonding. There is a
ground lug inside the heat pump electrical compartment.
Equipotential Bonding
The Wiring Rules (AS/NZS 3000) and most other codes require in many circumstances that metallic
components of a pool structure, including reinforcing steel, metal ttings, and above ground equip-
ment be bonded together with a solid copper conductor. The heat pump contains a metal (titanium)
heat exchanger which is in contact with the pool water, which may need to be connected to this bond-
ing grid. A bonding lug is provided to ensure this requirement can be met. Please refer to the Wiring
Rules (AS/NZS 3000) and any local codes for details on whether equipotential bonding is required.
Main Power
Electrical wiring to the heat pump must be in accordance with the latest edition of the Wiring Rules
(AS/NZS 3000). All wiring must be done by a certied or qualied electrician.
Power to the heat pump must be protected by an RCD or RCBO. The heat pump should be the only
device connected to the protected circuit. For high power model heat pumps (16kW-24kW) it may be
necessary to use a D-Curve type RCD/RCBO to avoid nuisance tripping with compressor starts.
The following is the procedure to wire the heat pump to the electrical source:
Be sure the power to the circuit for the heat pump is turned off.
1. Remove the front panel of the heat pump cabinet (you need to loosen the front screws on the top
panel aswell).
2. Remove the service panel to the heat pump electrical compartment.
3. Electrical supply lines must be run through watertight conduit on the front panel. Run the wires
and conduit from the power source and connect them to the conduit connection. Use suitable gauge
connection wire as per below table.
4. Connect the power leads to the terminals in the electrical compartment as shown in the wiring
diagram.
5. Verify that all other wires are secure, they may have loosened during shipment.
6. Connect the ground wire to the ground lug provided.
7. Replace the service panel and reinstall screws to hold it in place.
8. Replace the front panel.
Heat Pump Cable Size
9kW 10A Plug and Cable Provided
12kW 15A Plug and Cable Provided
16kW 3 x 4mm2 (A, N, E)
20kW 3 x 6mm2 (A, N, E)
24kW 3 x 6mm2 (A, N, E)
28kW 5 x 2.5mm2 (3P, N, E)
Installation

Page 16
Installation
Electrical Connections (Continued)
Figure 10: Location of Electrical Panel
Figure 11: Electrical Connections for Single Phase Units
1. Water Pump Active
2. Water Pump Neutral

Page 17
Control Panel
11
Figure 12: Control Panel
Ref Icon Function
1 Key / Lock Tap the key to lock the screen. Hold the padlock for 3 seconds to
unlock the screen.
2 On/Off Tap to turn the heat pump on or off.
3 Time This shows the current time.
4 Mode Icon Shows whether Heating, Cooling or Auto mode is active.
5 Mute This icon will show if the control pad is muted.
6 Timer Mode This icon will show if the on/off timer is enabled.
7 Timed Mute Mode This icon will show if the mute timer is enabled.
8 Fault Icon This icon will show if there is a fault detected with the heat
pump.
9 Defrost Icon This icon will show if the heat pump is in defrost mode.
10 Water Inlet Temperature The current water inlet temperature (the water from the pool).
11 Water Outlet Temperature The current water outlet temperature from the heat pump. This
should be 1-2 degrees higher than the inlet temperature.
Conguration
Conguration

Page 18
Figure 13: Control Panel Menu Screen
Ref Icon Function
1 Settings Tap this to enter the settings menu.
2 Status Tap to enter the status menu.
3 Timer Tap to enter the timer menu. For setting the on/off timer.
4 Clock Tap to enter the clock menu for setting the system time.
5 Fault Tap to view the fault history.
6 Brightness Tap to select the screen brightness.
7 Scenario Tap to enter the heat pump operation scenario menu.
Control Panel (Continued)
Conguration

Page 19
Setting the Clock
1. On the main interface screen, swipe left and tap
to enter into clock setting interface.
2. Tap the date. This will this take you to the date
setting interface. Swipe up and down on the
Month, Day and Year to select the correct date.
Tap OK to save the date, tap < to go back without
saving.
3. Tap the time. This will take you to the time setting
interface. Swipe up and down on the Hours, Min-
utes and Seconds to select the correct time. Tap
OK to save the time, tap < to go back without
Conguration

Page 20
Turning Heat Pump On and Off
When the heat pump is off, the main screen will have
a black background and display “OFF” in the centre.
To turn the heat pump on, tap the power button
. The background will change to blue and the current
temperature will be displayed on the screen, indicat-
ing the heat pump is on. If you do not set a timer, the
heat pump will stay on indenitely as long as there is
water ow. To manually turn the heat pump off, tap
the power button . The main display will change
to a black background and display “OFF” again, indi-
cating the heat pump is off.
Setting the Temperature and Mode
The UltraTemp HXi heat pump can work in heat/cool
or auto mode. To set the temperature and mode:
1. On the main interface screen, tap the centre of
the screen where the temperature is displayed.
This will display the ‘Mode’ screen.
2. On the left hand side of the screen the mode will
be displayed. Swipe up and down over the mode
to choose between Heating, Cooling or Auto. Ex-
cept in really warm climates, Heating mode is the
normal mode to choose for heating your pool.
3. On the right hand side of the screen, the target
temperature will be displayed. Swipe up and down
on the temperature to set the desired water tem-
perature.
4. Tap OK to save the mode setting. Tap < to go back
without saving.
Conguration