Calorex V-PAC VPT 12 ALX Quick start guide

V-PAC inverter heat pumps
VPT 12, 16, 22
Owner Installation Manual 1005759 Issue 2

21005759 ISSUE 2
OWNER/INSTALLATION MANUAL
HEALTH AND SAFETY WARNING
This product contains electrical and rotational
equipment. ONLY competent trained people
should work on is device, and must be
isolated electrically before removing access
panels.
This appliance can be used by children from
8 years and above and persons wi reduced
physical, sensory or mental capabilities or
lack of experience and knowledge if ey
have been given supervision or instruction
concerning use of e appliance in a safe way
and understand e hazards involved. Children
should not play wi e appliance. Cleaning
and user maintenance shall not be made by
children wiout supervision.
HEALTH AND SAFETY WARNING

3
1005759 ISSUE 2
HEALTH AND SAFETY WARNING ���������������������������2
1�0 INTRODUCTION ��������������������������������������������������4
1�1 FOREWORD�����������������������������������������������������4
1�2 WARNINGS ������������������������������������������������������4
2�0 ABOUT YOUR HEAT PUMP �������������������������������8
2�1 TRANSPORTATION �����������������������������������������8
2�2 ACCESSORIES�������������������������������������������������8
2�3 FEATURES��������������������������������������������������������9
2�4 OPERATING CONDITIONS AND RANGE �����9
2�5 OPERATING MODES ��������������������������������������9
3�0 INSTALLATION ��������������������������������������������������10
3�1 POSITIONING AND AIRFLOW���������������������10
3�2 REFRIGERANT TYPE AND INSTALLED
LOCATION�������������������������������������������������������������13
3�3 POOL WATER CIRCUIT���������������������������������14
3�4 PLUMBING�����������������������������������������������������15
3�5 INITIAL CHECKS �������������������������������������������15
3�6 ELECTROLYTIC CORROSION IN SWIMMING
POOLS�������������������������������������������������������������������16
3�7 ELECTRIC WIRING AND SUPPLY ���������������16
3�8 CONNECTING THE HEAT PUMP TO THE
POWER SUPPLY ��������������������������������������������������17
3�9 POOL PUMP OVERRIDE
TERMINALS P1/P2����������������������������������������������18
4�0 USING YOUR HEAT PUMP�������������������������������19
4�1 THE KEY PAD ������������������������������������������������19
4�2 OPERATING INSTRUCTIONS ����������������������20
5�0 TESTING �������������������������������������������������������������22
5�1 HEAT PUMP MALFUNCTION ����������������������23
5�2 PROTECTION CODES �����������������������������������24
5�3 FAULT CODES������������������������������������������������25
6�0 MAINTENANCE �������������������������������������������������26
7�0 TROUBLE SHOOTING COMMON FAULTS �����26
8�0 DATA SHEET ������������������������������������������������������27
9�0 DIMENSIONS �����������������������������������������������������28
10�0 WINTERISATION PROCEDURE ���������������������29
10�1 START UP PROCEDURE AFTER
WINTERISATION ������������������������������������������������������29
11�0 WARRANTY CONDITIONS�����������������������������30
12�0 DECLARATION OF CONFORMITY����������������31
CONTENTS

41005759 ISSUE 2
OWNER/INSTALLATION MANUAL
Thank you for choosing is product, which is designed
for quiet and energy ecient operation. It is e ideal
way to heat your pool in an environmentally friendly
way.
This guide provides information needed to install and
operate e product effectively. Please ensure you
read is manual and use e correct installation and
operating procedures.
This manual is intended for installers and users�
Read e entire manual before using e heat
pump� Awareness of e correct operating
procedure for e machine and any safety devices
is important, to avoid damage or injury�
The appliance can be used by children aged from 8
years and above and persons wi reduced, physical,
sensory or mental capabilities or lack of experience
and knowledge if ey have been given supervision
or instruction concerning use of e appliance in a safe
way and understand e hazards involved. Children
shall not play wi e appliance. Cleaning and user
maintenance shall not be made by children wiout
supervision.
1�2 WARNINGS
Important safety information is contained in is manual
and marked on e heat pump.
Please read and follow all safety advice�
The refrigerant used in is heat pump is R32�
This refrigerant is environmentally friendly, but
safety instructions must be strictly adhered to�
The WARNING sign denotes a hazard� It calls
attention to a procedure or practice, which if not
adhered to could result in injury� Warning signs
and procedures must be complied wi�
If a refrigerant leak is suspected stop using e
heat pump and contact Danerm Group UK
service�
service�department@danerm�com
Take e following precautions in order to avoid
any danger:
REFRIGERANT SAFETY:
This heat pump contains R32 refrigerant� Work
on e refrigeration system, repair and disposal
must be carried out by appropriately qualified and
registered engineers�
Repair, service and disposal must be carried out in e
EU by F-Gas registered engineers.
Completely de-gas e refrigerant before any brazing
is performed. Brazing can only be carried out by
technicians trained to EU 517/2014.
Risk assessments must be carried out before
maintenance or repairs are started.
Appropriate safety measures and risk assessments
must be taken before work commences.
Do not attempt to work on e equipment by
yourself�
Consult e qualified engineer undertaking e work to
establish all requirements before work commences.
1�0 INTRODUCTION
1�1 FOREWORD

5
1005759 ISSUE 2
ACTIONS TO AVOID (OPERATION AND
HANDLING):
Be especially careful when handling e heat pump,
not to cause any damage at may result in leakage of
e cooling circuit.
Do not use means to accelerate e defrosting process
or to clean, oer an ose recommended by e
manufacturer.
Do not pierce or burn.
IN CASE OF FIRE:
Toxic fumes may occur in e event of fire. You must
leave e room as quickly as possible in e event of
fire.
LOCATION REQUIREMENTS:
The heat pump contains R32 refrigerant so e
following location requirements must be fulfilled:
The heat pump must be kept away from sources of fire
or naked flames.
The heat pump must be installed, operated and
stored where e floor area is larger an e minimum
requirement., see section 3.2.
The heat pump shall be stored in a room wiout
continuously operating ignition sources (for example:
open flames, an operating gas appliance or an
operating electric heater).
Keep e ventilation openings clear of obstruction
during operation.
Do not use or store combustible gas or liquids near e
heat pump.
Check if ere are any local regulations, which
you must comply to, when installing or storing
e heat pump�
Be aware at refrigerants may not contain an
odour�

61005759 ISSUE 2
OWNER/INSTALLATION MANUAL
Installation must be carried out by competent people,
in accordance wi is manual.
INSTALLATION:
Read e instructions before installation, use and
maintenance.
If R32 gas leaks during e installation process, stop e
installation immediately and call e service centre.
If a repair is required, please contact e nearest aer-
sales service centre.
To avoid over heating or over cooling of pool water
check and set e temperature on e control panel.
The heating performance can be improved by
insulating e flow and return pipework.
It is recommended at a cover is used on e
swimming pool to reduce heat losses.
AIRFLOW:
The heat pump must have access to adequate airflow.
See section 3.1.
Do not place obstructions at will block air flow near
e inlet or outlet.
ELECTRICAL SAFETY:
Mains power isolator should be out of reach of children.
Aer a power cut, when e power supply is restored,
e heat pump may start up wiout warning.
Electric storms can damage electronic equipment.
Ideally e heat pump should be switched off at e
mains.
HEAT PUMP MALFUNCTION:
WARNING: Isolate heat pump electrically and wait
3 minutes before removing panels or entering heat
pump.
Refer to e user check list in section 6.2 and e error
codes listed in section 6.3 before initiating a service call.
Do not attempt to interfere wi any internal control
settings as ese have been factory calibrated and
sealed.
Any sign of abnormal operation such as water dripping
should be reported immediately to e installer. If
in doubt or if advice is required contact e Service
support team on telephone [phone]
(option 4).
MAINTENANCE:
Isolate e power supply of e heat pump and wait 3
minutes before cleaning examination or repair.
Please clean is machine wi household detergents
or clean water. NEVER use petroleum spirit, inners or
any similar fuel.
Check bolts, cables and connections regularly.
DISPOSAL:
Repair, service and disposal of redundant heat pumps
must be completed by auorised technicians. It is
illegal to allow refrigerant gases to escape to air.
Do not attempt to work on e equipment by yourself.
Improper operation may cause danger.

7
1005759 ISSUE 2
Do not use means to
accelerate e defrosting
process or to clean, oer an
ose recommended by e
manufacturer.
The appliance shall be stored
in a room wiout continuously
operating ignition sources
(for example: open flames, an
operating gas appliance or an
operating electric heater.
Do not piece or burn.
Be aware at refrigerants
may not contain an odour.
Appliance shall be installed,
operated and stored in a
room wi a floor area larger
an Xm2, where X is e
“minimum area” shown in
section 3.2 and section 8.0.
The heat pump must be kept
away from sources of fire or
naked flames.
The heat pump must be
installed in well ventilated
area. Closed areas are not
permitted.
Repair and disposal must
be carried out by F-Gas
registered engineers.
Completely de-gas e
refrigerant before any brazing
is performed. Brazing can only
be carried out by technicians
trained to EU 517/2014.

81005759 ISSUE 2
OWNER/INSTALLATION MANUAL
X
2�0 ABOUT YOUR HEAT PUMP
2�1 TRANSPORTATION
Always keep e heat pump upright.
Do not li e heat pump by e water inlet or
outlet connections.
(If is is done e titanium heat exchanger inside e
heat pump could be damaged).
2�2 ACCESSORIES
These accessories are provided wi e heat pump.
Water union connectors:
2 x 1 ½, 2 x 50mm
Drainage kit
4 x rubber mounts

9
1005759 ISSUE 2
2�3 FEATURES
• Stepless DC inverter compressor
• EEV Technology (Electronic Equalisation Valve)
• Quick hot gas defrosting wi 4-way valve
• High-eciency twisted titanium heat exchanger
• High pressure and low pressure protection
• So start and wide voltage application
• Stable inverter control system
2�4 OPERATING CONDITIONS AND RANGE
Air temperature operating range:
V-PAC (VPT X models): -5-43°C.
Water temperature setting range:
Heating: 18°C-40°C
Cooling: 12°C-30°C
2�5 OPERATING MODES
The heat pump has ree modes: Powerful mode,
Silent mode, and Smart mode.
Mode Modes Characteristics
Powerful Powerful mode
Heating Capacity 100%
Fastest heating, ideal for initial pool heat up.
Silent Silent mode
Heating Capacity 50%
Quiet operation, ideal for night time operation.
Smart Smart mode
Heating capacity from 25% to 100%
Intelligent optimization ideal for day to day operation.

10 1005759 ISSUE 2
OWNER/INSTALLATION MANUAL
3�0 INSTALLATION
The heat pump must be positioned in a well
ventilated area. Minimum distances between e heat
pump and any obstructions are shown below.
• The heat pump must be fixed by M10 bolts to a
concrete base or mounting brackets. These must be
solid and fixed securely. Brackets must be corrosion
proof.
• Do not block inlet or outlet grilles.
The heat pump absorbs energy from e air drawn
rough it. To function effectively e heat pump must
have access to e fresh air it needs.
• Air must not recirculate. The air leaving e heat
pump must not be sucked back into e inlet.
• Air must not be restricted. The air volume must not
be reduced.
• The minimum required distances shown below
must be provided to minimise e risk of air
recirculation or restriction and reduction in
performance. Furer examples are shown on e
following page.
3�1 POSITIONING AND AIRFLOW
Installation must only be attempted by competent
personnel�
Airflow - general principles
Important installation instruction
500mm
500mm
500mm
3000mm

11
1005759 ISSUE 2
>50cm
>50cm >50cm
Wall
>50cm >50cm
Wall
Typical inside or plant room
installation.
(Not recommended for long duct
runs).
The plant room must not
be used as an occupied
space.
>300cm
Typical outside installation.
Minimum free areas m2
Model Discharge area
VPT 12 0.188
VPT 16 0.188
VPT 22 0.220
Required free areas to provide air flow to and from heat
pumps when installed in an enclosed area or where
required to pass air rough a wall etc. Ensure holes
rough walls are sealed to avoid e outlet air entering
cavities and to avoid e possibility of recirculation.
Free area is e available area rough which air can
pass rough a grille or louvres.

12 1005759 ISSUE 2
OWNER/INSTALLATION MANUAL
To comply wi safety regulations regarding electrical
installations in wet areas e heat pump must be
installed at least 350cm away from e edge of e
pool or spa.
>350 cm
Swimming pool or spa

13
1005759 ISSUE 2
Model VPT12ALX VPT16ALX VPT22ALX
Refrigerant
charge
R32 kg 0.8 0.8 1.7
Minimum area m² 5.4 5.4 24.6
Notes *Assumed worst case for access category: a - general access and location
class: I - mechanical equipment in occupied space; bo as defined in line wi
EN378-1 2016 section 5.1 table 4 and section 5.3
*Minimum Area is calculated in line wi section C.2 on EN378-1 2016
(calculation C.2).
3�2 REFRIGERANT TYPE AND INSTALLED
LOCATION
This heat pump contains R32, which is an
environmentally friendly refrigerant wi a GWP
(Global Warming Potential) of 675. R32 has e safety
in use classification of A2L, being low toxicity and
lower flammability. In practical terms it is very dicult
to ignite an A2L refrigerant, but is classification
requires a risk assessment to be undertaken for e
possibility of refrigerant being released by accident into
an area connected to e heat pump, considering e
application, location of components, and e installed
refrigerant charge. This installation guidance can form
e framework for such a risk assessment for e
installation.
All flammable refrigerants will not ignite if e
concentration level in a room stays below eir lower
flammability limit (LFL). European standard EN378
defines requirements to remain far below e lower
flammable limit in case of accidental leakage. By
choosing e location as dictated by EN378-1:2016
e probability of forming a flammable atmosphere
can be eliminated. Please refer to e minimum
area for each product and e interpretation below
regarding locations of heat pump and swimming pool.
This information is provided as a guide only and does
not supersede e regulations or heal and safety
requirements.
INTERPRETATION
Please refer to e installation situations below for how
to apply e minimum area stated above.
Pool outside and heat pump outside:
Automatically meets e minimum area requirement
because outside space is unlimited.
Pool outside and heat pump inside a plant room:
Automatically meets e minimum area requirement
because e room must open to e outside for heat
pump airflow and e outside space is unlimited.
Pool inside and heat pump outside:
The pool hall must exceed e minimum area
requirement shown above.
Pool inside and heat pump inside a plant room,
isolated from e pool hall:
The pool hall must exceed e minimum area
requirement shown above.
Pool inside and heat pump inside a plant room,
ventilated to e pool hall:
The pool hall and plant room combined must exceed
e minimum area requirement shown above.

14 1005759 ISSUE 2
OWNER/INSTALLATION MANUAL
3�3 POOL WATER CIRCUIT
Anti return loop
to be incorporated,
minimum height
100mm above
heat pump
outlet port
(If sanitiser fitted)
Non return
valve
Sanitiser or
chemical dosing
device,
(If fitted)
Aux heater
(If fitted)
Filter Pump
To waste
for
winterising
drain down
100mm
Condensate
water to
waste
Spare port
for winterising
flushing
connection
To waste
Calorex
Heat pump
Pool
Bypass
valve
(adjusted to
achieve
recommended
flow)
KEY
Isolation valve
Breakable coupling
Three way valve

15
1005759 ISSUE 2
3�4 PLUMBING
IMPORTANT
Before installing e heat pump ensure e
blanking disks are removed from e pool water
in/out connections� These should drop out when
e adaptors are unscrewed�
1. Ensure at bypass is installed and set to achieve
e recommended flow rates stated in e data
sheet.
2. Ensure at e condensate drain kit supplied is
fixed and is drained to a drain or soak-away.
3. Inlet and outlet pipework must be supported to
avoid excessive strain on e connections.
4. Water quality must be maintained. See warranty
conditions.
Water
out
Water
in
Supported pipework
3�5 INITIAL CHECKS
Start e filtration pump before e heat pump is
turned on and turn off e heat pump before e
filtration pump. It is recommended to turn off e heat
pump prior to backwashing.
Before starting e heat pump, please check for
any leakage of water; and check/set e required
temperature on e controller, and en turn on.
In order to protect e components, e heat pump
incorporates time delays. When starting heating/cooling
e fan will run for one minute before e compressor
starts. The heat pump runs for a minimum of 5
minutes. When e heat pump stops heating/cooling,
or is turned off by e user, e fan will continue to run
for one minute.
Aer starting up, check for any error codes or abnormal
noise from e heat pump.

16 1005759 ISSUE 2
OWNER/INSTALLATION MANUAL
Electrolytic corrosion will occur when dissimilar metals
at are in contact wi each oer create a potential
difference between emselves. Sometimes separated
by a conductive substance known as an electrolyte, e
dissimilar metals will create a small voltage (potential
difference) at allows e ions of one material to pass
to e oer.
Just like a battery, ions will pass from e most positive
material to e more negative material.
Anying more an 0.3 volts can cause e most
positive material to degrade.
A swimming pool wi its associated equipment
can create is effect. The pool water being an ideal
electrolyte and components of e filtration circuit,
heating system, steps, lights etc providing e dissimilar
metals needed to complete e circuit.
Whilst ese small voltages are rarely a safety reat,
ey can create premature failure rough corrosion.
Not dissimilar to corrosion rough oxidation, electrolytic
corrosion can cause complete failure of a metallic
material in a very short period of time.
In order to prevent is type of corrosion all metallic
components in contact wi swimming pool water
should be bonded togeer using 10mm² bonding
cable. This includes non-electrical items such as metal
filters, pump strainer boxes, heat exchangers, steps
and handrails. It is highly recommended at bonding
be retrofitted to existing pools, which may not be
protected by is system.
All electrical work to be carried out in accordance wi
l.E.E.regulations, latest issue, or local codes of practice
as applicable. .
The machine should be installed in accordance wi
EMC2004/108/EC.
Always isolate e main ower supply before removing
machine covers.
The machine power supply must incorporate e
following. Fuses or motor type circuit breakers (aM
Fuse / MCB type C) to specified rating (see datasheet).
When using a fuse, H.R.C. fuses are recommended. An
isolator which disconnects all poles must be must fitted
wiin 2m and in line of sight of e heat pump. The
isolator must have a minimum of 3mm air gap when
turned off.
All units must be correctly eared/grounded and its
own separate type F RCD ear leakage trip installed
which protects e machine only.
The following limits of operation must not be exceeded.
Failure to provide e necessary voltages will invalidate
e warranty. This voltage must be available at e heat
pump whilst running. The voltage must not drop below
e above figures when starting e compressor.
Minimum Maximum
Voltage
Single phase machines 207V 253V
Cycle frequency (50Hz) 47.5Hz 52.5Hz
3�6 ELECTROLYTIC CORROSION IN SWIMMING
POOLS
3�7 ELECTRIC WIRING AND SUPPLY

17
1005759 ISSUE 2
3�8 CONNECTING THE HEAT PUMP TO THE POWER
SUPPLY
Cable Entry point Position of terminals
L N
Fuse/MCB
Eared Power
Supply 230V 50Hz
Supply
cord
Distribution box
L N
RCD/
Circuit
Breaker
P1 P2
Power
terminals
Pump
terminals
Cable clamp
Single phase
Terminals in Heat Pump Electrics enclosure
Isolator which
disconnects all poles
fitted wiin 2m and in line
of sight of e heat pump
Secure cables
using cable clamps
and feed rough
cable entry points in
machine
Isolator which
disconnects all poles
fitted wiin 2m and in line
of sight of e heat pump

18 1005759 ISSUE 2
OWNER/INSTALLATION MANUAL
For installations where e pool filter pump runs
continuously, ese terminals do not need to be used.
For installations where a timeclock controls e pool
filter pump, and e same pump provides water flow
to e heat pump, e heat pump can override “pump
off” periods to ensure e pool is heated/cooled. To
activate is setting please speak to your installer.
When installed in parallel wi e timeclock, e pool
filter pump will run when:
a) a period of “pump on” has been set on e time
clock for filtration purposes.
b) a period of “pump off” has been set in e time
clock and e heat pump runs e pool filter pump for
temperature sampling and if e pool subsequently
requires heating/cooling.
This feature operates by over-riding e timeclock
whenever e controller measures a water temperature
at needs heating/cooling. If e pool does not need
heating/cooling e filter pump will be turned off until
e controller next measures a water temperature
at needs heating/cooling. If e pool needs heating/
cooling e heat pump will continue to run e filter
pump and heat/cool e pool.
This feature will reduce e pool filter pump run time to
minimise pump energy usage.
3�9 POOL PUMP OVERRIDE
TERMINALS P1/P2
L
Terminals in
heat pump
(volt free)
Customer’s external pump/
filter time clock
P1
P2
N
Pool pump
starter
L
N
Single phase
water pump
L N
Separate supply
E
Fuse

19
1005759 ISSUE 2
4�0 USING YOUR HEAT PUMP
Mode Down Up
LED display
Smart mode indicator light
Powerful mode indicator light
Powerful Smart Silent
M

88.88
Silent mode indicator light
Power
HEAT
COOL
Heating indicator light
Timer on indicator light
Timer off indicator light
Cooling indicator light
Powerful Smart Silent
M

18.05
HEAT
COOL
Note: When e heat pump is powered off, e display
shows e time.
4�1 THE KEY PAD

20 1005759 ISSUE 2
OWNER/INSTALLATION MANUAL
a� Power on�
Press to power e unit on or off. Note. a short
press will return e controller to main menu.
b� Temperature setting�
Press pand qto display and adjust e set
temperature. Press to save settings and return to
main screen.
c� Mode Selection
Press Mto enter mode.
Powerful Powerful mode indicator lamp lit.
Smart Smart mode indicator lamp lit
Silent Silent mode indicator lamp lit
d� Heat mode selection
Press
M
to switch between heating and cooling.
Heating= Heating indicator lamp lit and H on display.
Cooling= Cooling indicator lamp lit and C on display.
e� Defrosting
1. Automatic defrosting. When machine is defrosting
e heating indicator lamp flashes; aer defrosting e
flashing stops.
2. Forced Defrosting. When machine is heating and
e compressor has been running continuously for 10
minutes. Press pand qtogeer for 5 seconds. e
heating mode lamp flashes and defrost starts. When
defrosting is exited e display returns to normal.
f� Clock Setting
Turn e heat pump off via e . Press Mto
enter e clock settings. Press Mand e hour
flashes. Using e pand qset e hour. Press M
again to make e minutes flash and use e pand
qto set. Press e Monce more to return to e
main display. Press e to turn e heat pumps
back on.
4�2 OPERATING INSTRUCTIONS
IMPORTANT
Remember at at startup ere is a 1 minute time delay before e heat pump starts