Calorex C-PAC+ CPT6 ALY Quick start guide

C-PAC+ swimming pool heat pumps
CPT 6, 8, 12, 15, 20
Owner Installation Manual 1006905 Issue 2

21006905 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
1006905 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
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 SYNCHRONISATION
TERMINALS P1 AND P2�������������������������������������18
3�10 REMOTE ON - OFF CONNECTION �����������19
4�0 USING YOUR HEAT PUMP�������������������������������20
4�1 THE KEY PAD ������������������������������������������������20
4�2 OPERATING INSTRUCTIONS�����������������������21
5�0 TESTING �������������������������������������������������������������22
5�1 HEAT PUMP MALFUNCTION ����������������������22
5�2 PROTECTION CODES ����������������������������������23
5�3 FAULT CODES������������������������������������������������23
6�0 MAINTENANCE �������������������������������������������������24
7�0 TROUBLE SHOOTING COMMON FAULTS �����24
8�0 DATASHEET��������������������������������������������������������25
9�0 DIMENSIONS �����������������������������������������������������26
10�0 WINTERISATION PROCEDURE ���������������������28
10�1 START UP PROCEDURE AFTER
WINTERISATION ������������������������������������������������������28
11�0 WARRANTY CONDITIONS�����������������������������29
12�0 DECLARATION OF CONFORMITY����������������30
CONTENTS

41006905 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 refrigerant used in e CPT20 is R410a�
The WARNING sign denotes a hazard� It calls
attention to a procedure or practice, which if not
adhered to could result in injury� Warning if 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
1006905 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�

61006905 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.
A refrigerant leak test must be performed aer
installation.
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
1006905 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.

81006905 ISSUE 2
OWNER/INSTALLATION MANUAL
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.
2�0 ABOUT YOUR HEAT PUMP
xWATER
OUT
WATER
IN
Water union connectors
2 x 1½,
2 x 50mm
Drainage kit
Anti-vibration feet

9
1006905 ISSUE 2
2�3 FEATURES
• Quick hot gas defrosting wi 4-way valve.
• High-eciency full flow titanium heat exchanger.
• High pressure and low pressure protection.
• So start and wide voltage application.
• Multi function operation. Can also be used for cool
pools.
2�4 OPERATING CONDITIONS AND RANGE
Air temperature operating range:
C-PAC+ (CPT models): -10-43°C
Water temperature setting range:
Heating: 18°C-40°C
Cooling: 8°C-28°C

10 1006905 ISSUE 2
OWNER/INSTALLATION MANUAL
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.
• Use e anti-vibration feet provided. These help to
reduce e noise from e heat pump.
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.
Important installation instruction
700mm
500 mm
2500 mm
700mm
3�0 INSTALLATION
Installation must only be attempted by competent
personnel
3�1 POSITIONING AND AIRFLOW
Airflow - general principles

11
1006905 ISSUE 2
> 50 cm
Plant room
Calorex*
Wall
Calorex
Possible positions of a Calorex heat pump
Wall
Suitable opening
Calorex*
>70 cm
Calorex
>70 cm
>250 cm
Calorex
The red lines represent e air inlet area
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 e heat
pump is sealed against e wall so e outlet air cannot
recirculate. Ensure e hole rough e wall is sealed
to avoid e outlet air entering cavities and is smoo
so e outlet air is not restricted.
Free area is e available area rough which air can
pass rough a grille or louvres.
Minimum free areas m2
Model Inlet area Discharge area
CPT 6 0.313 0.13
CPT 8 0.313 0.13
CPT 12 0.422 0.17
CPT 15 0.422 0.17
CPT 20 0.515 0.20

12 1006905 ISSUE 2
OWNER/INSTALLATION MANUAL
>350 cm
Swimming pool or spa
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.

13
1006905 ISSUE 2
Model CPT6ALY CPT8ALY CPT12ALY CPT15ALY
Refrigerant
charge
R32 kg 0.9 1.0 1.5 1.5
Minimum area m² 6.9 8.5 19.1 19.1
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.
*Min 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 pumps CPT6, CPT8, CPT12 and CPT15
contain 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 1006905 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
1006905 ISSUE 2
3�4 PLUMBING
Note: Fittings shown at larger scale for clarity.
Hose Condensate adaptor
Fit in hole in base of unit.
Approximate position shown.
Water
out
Water
in
x

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.
(It is best to do is first before e heat pump
is fixed to pipework or e ground)�
3. Inlet and outlet pipework must be supported to
avoid excessive strain on e connections.
4. Water quality must be maintained. See warranty
conditions.
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 3 minutes before e compressor
starts. When e heat pump stops heating/cooling
e fan will continue to run for one minute. If e
heat pump is turned off by e user, e fan will stop
immediately.
Aer starting up, check for any error codes or abnormal
noise from e heat pump.

16 1006905 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 power 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 data sheet).
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 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
Three-phase machines 360V 440V
Cycle frequency (50Hz) 47.5Hz 52.5Hz
3�6 ELECTROLYTIC CORROSION IN SWIMMING
POOLS
3�7 ELECTRIC WIRING AND SUPPLY

17
1006905 ISSUE 2
3�8 CONNECTING THE HEAT PUMP TO THE POWER
SUPPLY
Cable Entry point
Undo e screws
The terminals for connecting
e heat pump to e power supply
are behind is panel.
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
L3
N
Fuses/MCB
Eared Power
Supply 400V 50Hz
L3 N P1 P2
Power
terminals
Pump
terminals
L2
L1
L2
L1
Three phase
Terminals in Heat Pump Electrics enclosure
Cable clamp
Supply
cord
RCD/
Circuit
Breaker
Distribution box
Secure cables
using cable
clamps and feed
rough cable
entry points in
machine
Remove ese
two screws
Li lower
panel away
1
Remove ese
four screws and
remove cover
Two cable
entry points
2

18 1006905 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 on 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
“pump off” for 5 minutes to circulate e pool
water rough e heat pump to sample e water
temperature. The default sampling time interval is 2
hours. If e pool does not need heating/cooling e
filter pump will be turned off aer 5 minutes until e
next sampling period, or e next timeclock “pump
on” period. If e pool needs heating/cooling e heat
pump will continue to run e filter pump and heat/
cool e pool.
If e pool pump is already running, and e heat pump
is not heating/cooling, e heat pump will sample
e water temperature once per hour and will start
heating/cooling if needed. The heat pump will ignore
a demand to heat/cool e pool until e sampling
timer (default 1 hour) has elapsed*.
This feature will reduce e pool filter pump run time to
minimise pump energy usage.
*If e pool filter pump is later changed to run
continuously, it is recommended to de-activate is
setting so e heat pump will respond to a heating/
cooling demand wiout waiting for e sampling time
interval to elapse. To deactivate is setting please
speak to your installer.
L
Terminals in
heat pump
Customer’s external pump/
filter time clock
Relay
230V coil
P1
P2
N
Pool pump
starter
L
N
Single phase
water pump
L N
Separate supply
E
Fuse
3�9 POOL PUMP SYNCHRONISATION
TERMINALS P1 AND P2

19
1006905 ISSUE 2
3�10 REMOTE ON - OFF CONNECTION
For installation where e heat pump is to be turned
on/off remotely.
There is a pair of terminals available for connecting
a switch, which are marked Remote on/off and are
situated below e mains in terminals.
The heat pump is supplied wi a link wire in e
remote terminals, for use wiout a switch. When fitting
a remote switch, remove e link wire.
Cable Entry point
P1 P2NL
Undo e screws
Remote
On/Off
Terminals for connecting
Remote On/Off are below
e mains in terminals
Switch controlling
CPT

20 1006905 ISSUE 2
OWNER/INSTALLATION MANUAL
Heat Pump
‘ON’/’OFF’ button
Mode button
Increase button
Current time
M  SET
SET IN ROOM OUT
1
2
ON
OFF
Timer
Setting button
Decrease button
Defrost mode
Cooling mode
Auto mode
Fan running
Heating mode
88 88
88:88
Current water inlet
temperature.(SET IN)
Ambient temperature.
(ROOM OUT)
*Error codes show here
Timer function
enabled
Timer function
disabled
Fault indicator
Number of timers set
1 bar = 1 timer
2 bars = 2 timers
3 bars = 3 timers
Attention:
a. The heat pump will only run when it has been
connected to e water supply.
4�1 THE KEY PAD
4�0 USING YOUR HEAT PUMP