Calorex PPT8 Quick start guide

Page 1
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
OWNER/INSTALLATION MANUAL
FOR
PPT8/12/16/22LX/LY SLIMLINE
(SD638150 Iss.11 03/06/13)
Health and Safety Warning:
As the heat pump includes electrical and rotational components it is required that only trained
and competent persons should remove panels giving internal access to the unit.

Page 2
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
+
ACCESSORIES
4 x ANTIVIBRATION PADS
2 x 50mm FEMALE PIPE ADAPTORS
1 x CONDENSATE DRAIN SOCKET 3/4”
1 X CONDENSATE DRAIN SOCKET 20mm
(IN HEAT PUMP ELECTRIC BOX)
Thank you for choosing Calorex!
Your Calorex heat pump has been specially designed for pool heating using high
quality components that are carefully chosen to provide maximum efficiency and
reliability. Please read this manual carefully as it provides useful operation and
maintenance information that will maximise the benefits your Calorex heat pump
can offer.

Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
Page i
®
SCALE 1:1
SIZE =240mm HIGH X 190mm WIDE. DOTTED BORDER NOT TO BE VISIBLE
MATERIAL - SELF ADHESIVE PVC SUITABLE FOR OUTDOOR USE (UV STABILISED)
FINISH- BLACK ON WHITE BACKGROUND. D436863 ISS 5
i
3.0
i
9.0 PPT8 = 20A
PPT12 = 25A
PPT16 = 30A
PPT22 = 42A
1Ø
PPT8 = 10A
PPT12 = 10A
PPT16 = 15A
PPT22 = 20A
3Ø
H.R.C./ MCB (Type C)
i
4.3
1
1 2
2
3
4
5
6
7
8
9
1 0
1 1
i
2.3
i
3.1
pH CaCO3
i
4.1
i
11.0
QUICK START GUIDE

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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
Contents
QUICK START GUIDE ..........................................................................................................i
1.0 Introduction .................................................................................................................... 4
1.1 Function ........................................................................................................................ 5
2.0 Installation ..................................................................................................................... 6
2.1 Accessories .................................................................................................................. 6
2.2 Siting ............................................................................................................................. 6
2.3 Air flow........................................................................................................................... 7
3.0 Plumbing ..................................................................................................................... 8
3.1 Recommended Plumbing Schematic ......................................................................... 10
3.2 Determining Water Flow ............................................................................................. 11
4.0 Electrolytic Corrosion in Swimming Pools .................................................................. 12
4.1 Electrical (Machine Wiring and Supply) ...................................................................... 13
4.2 Location of Mains Input and External Interlock Terminals ............................................ 14
4.3 Pool Pump Synchronisation ...................................................................................... 15
5.0 Digital Thermostat ....................................................................................................... 16
6.0 Circuit Diagrams ......................................................................................................... 17
7.0 Regular planned maintenance ................................................................................... 22
8.0 Heat Pump Malfunction .............................................................................................. 23
8.1 User Check List .......................................................................................................... 23
9.0 Datasheets .................................................................................................................. 24
10.0 Installation Drawings ................................................................................................ 26
11.0 Winterisation Procedure ........................................................................................... 30
11.1 Start up Procedure After Winterisation ...................................................................... 31
12.0 Warranty Conditions .................................................................................................. 32
13.0. Contacting Calorex .................................................................................................. 33
14.0 Machine Record Log ................................................................................................ 34

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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
The Calorex ‘Propac’ range of air to water heat pumps is designed for
swimming pool heating and consists of 4 models. Heat pumps in this
manual are designed to heat pool water and spas within the range of 10°C
to 40°C. Standard units (designated X) are suitable for outdoor pools
operating in ambient temperatures above 5ºC.(Reverse cycle defrost
models (designated Y) operate in ambient temperatures down to
-15ºC).The water heat exchanger is a full flow type, manufactured from
titanium tube, which is a highly corrosion resistant material. The heat
pumps are suitable for use in fresh water and salt water pools. PPT8/12
heat pumps are fitted with rotary compressors and PPT16/22 heat pumps
are fitted with scroll compressors. Both types of compressor are known
for quiet running. A 6 minute compressor start delay timer is incorporated
for compressor protection. With these features the heat pump is designed
to have a long, trouble free life.
All units have integral safety devices to protect the heat pump from internal
and external faults. Indicator lamps indicate operating mode. An adjustable
digital thermostat controls water temperature.
IMPORTANT
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 use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they do not play with
the appliance.
Calorex Heat Pumps Limited is an ISO9001:2000 certified company.
All Calorex heat pumps are CE approved
1.0 Introduction

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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
1.1 Function The Calorex Swimming pool heat pump provides thermodynamic heating by
means of a vapour compression cycle, (similar to that employed in a
conventional refrigerator), in addition to acting as an active solar collector.
Coefficient of Performance
The efficiency of a Heat Pump is usually called its ‘Coefficient of Performance’ - (C.O.P.)
which is simply a ratio of heat output to energy input, both being expressed in kW. Thus a
Heat Pump absorbing 1 kW of electricity, collecting 4 kW of energy from the air, and
delivering 5 kW of heat to the pool water is said to have a C.O.P. of 5:1.
This ratio will vary according to the temperature of the water and the ambient air.
POOL
WATER OUT
POOL
WATER IN
HOT GAS
HEAT
EXCHANGER
CONDENSED
REFRIGERANT
HIGH PRESSURE SIDE
COMPRESSOR
EXPANSION
VALVE
LOW PRESSURE SIDE
COOL LIQUID
REFRIGERANT
AMBIENT
AIR
COOL GAS
EVAPORATOR
1
2
3
4
THE HEAT PUMP CYCLE
1. THE EVAPORATOR collects the heat from the outside
ambient air, pre-heated by the sun. In the Calorex swimming
pool heat pumps, high volumes of outside air are drawn into the
unit by the fan expelled through the evaporator fins. The
evaporator has liquid refrigerant passing through it which is at a
considerably lower temperature than the ambient air.
Therefore the air gives up its heat to the refrigerant which then
vaporises.This preheated vapour now travels to -
3. THE CONDENSER where it is surrounded
by the pool water. The heat is given up to the
cooler pool water and the now cooler refrigerant
returns to its former liquid state but still under
high pressure from the compressor. This
pressure is released by passing liquid through-
2. THE COMPRESSOR
where it is compressed and
upgraded to a much higher
temperature. The hot vapour
now enters-
4. THE EXPANSION DEVICE and from
there, now at normal pressure, it is
returned to the evaporator and the cycle
starts again.

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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
a) Ensure heat pump on site is as ordered, i.e. model, electrical supply and factory
fitted options.
b) Inspect unit for damage, in particular inspect the evaporator (finned side) to
ensure that it is undamaged. (Minor indentations in the fins do not affect
performance). If severely damaged, endorse delivery note in presence of the
driver and send a recorded delivery letter to transport company giving details.
Protect unit if installation is delayed.
The heat pump is supplied with accessories which aid installation. On delivery the
accessories are in a plastic bag in the heat pump electric box. (See section 4.2
for lid removal).
These accessories are as follows:
4 x rubber feet - Fit these under the metal feet of the heat pump to help reduce the
effects of vibration.
2 x 50mm female connectors - On delivery the heat pump has 1 1/2” sockets
attached to the water connections for fitting 1 1/2” plastic pipes. If 50mm
pipework is preferred undo the threaded couplings on the water in/out connection
points and carefully remove the 1 1/2” sockets. Then fit the 50mm sockets in
their place and refit the threaded couplings. The heat pump can then be fitted
with 50mm plastic pipe.
2 x Condensate drain piece - Condensate drain pieces are supplied suitable for 3/4”
or 20mm pipe. Use whichever piece fits the drain pipe required. Glue the relevant
piece to the driptray outlet and then fit then condensate drain piping.
a) Provide a firm level base capable of supporting operational weight of unit; spread
load if mounted on timber floor.
b) Ensure water cannot collect under unit, it is recommend that units are installed
on plinths 100mm above finished floor level. This also aids condensate drainage.
c) Allow adequate clearance to service panels on unit; recommend 500mm
minimum.
d) All Calorex heat pumps are by design as quiet as is practical, however due
consideration should be given to siting the heat pump in order to minimise the
noise coming from the machine, for example by positioning the machine so that
the inlet/outlets are parallel to occupied premises.
e) Ensure loose debris such as leaves, grass cuttings, etc will not block air inlet
grilles.
f) Consider protection from extreme weather conditions if installed externally, i.e.
lean-to-cover or building.
2.0 Installation
2.2 Siting
2.1 Accessories

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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
2.3 Air flow
Suitable opening
Suitable opening
> 50 cm
PLANT ROOM
WALL WALL
POSSIBLE POSITIONS OF A CALOREX HEAT PUMP
SWIMMING POOL/SPA
CALOREX
CALOREX
CALOREX
CALOREX
CALOREX
MODEL
Inlet Discharge
PPT8 0.157 0.168
PPT12 0.264 0.168
PPT16 0.322 0.173
PPT22 0.322 0.173
Minimum Free Area m²
TABLE 1
IMPORTANT
If multiple units are installed in an enclosed area then the inlet free areas
required for each unit can be added together to form one inlet aperture.
BUT discharge from each unit must be kept separate and must not be
incorporated into one common duct system.
Due consideration must be given to air flow i.e. do not obstruct inlet or outlet
and ensure discharge to air cannot recirculate to inlet. (See below).
Required Free Areas to provide air flow to and
from heat pumps when installed in an
enclosed area or where required to pass air
through a wall etc.
Free areas is the available area through which
air can pass through a grille or louvres.

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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
THIS TYPE OF
INSTALLATION
SHOULD BE AVOIDED
INCORRECT DRAINAGE
FOR CONDENSATE
CORRECT DRAINAGE
FOR CONDENSATE ELBOW
'U' TRAP
ADEQUATE FALL
3.0 Plumbing a) Calorex Heat Pumps have water inlet/outlet connections as follows:
All models have fittings which enable the heat pump to be connected to
either 1 ½” or 50mm pipe work.
b) The heat pump is supplied with bungs fitted in the water connection
fittings These need to be removed before the heat pump is installed.
(See section 3.2).
c) The Calorex Heat Pump must be connected after the filter in the return
pipe to the pool. If an existing heater is being retained, then the Calorex
Heat Pump should be connected between the filter and the other heater.
(See section 3.1).
d) Suitable breakable couplings should be installed local to the heat pump.
e) If the heat pump is installed at a lower level than the pool then isolation
valves should be fitted.
f) A drain valve or plug should be fitted to the lower pipe to facilitate drain
down in the winter period.
g) Connections on all models are by 1 ½” or 50mm Female fittings. The
water in/water out pipes need to be glued into these connections using a
suitabe adhesive.
h) The condensate drain at the base of the unit collects condensation from
the evaporator fins. This should run away to waste via ¾” domestic
waste piping. It is therefore necessary to ensure that the Calorex Heat
Pump is placed on a level plinth so that the condensate water can run
away with adequate fall to waste i.e. ½” per foot minimum and must
incorporate a “u” trap as to not overflow the edges of the drip tray inside
the heat pump. See below.

Page 9
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
i) When the pipework installation is complete the pool pump should be
switched on and the system tested for leaks. Also check the filter gauge
to see that there is not an excessive increase in back pressure. If
everything is then working normally the water circulating system is ready
for use.
j) Water circuit to and from the unit is to be capable of maintaining within
specified limits the rate of flow required by the heat pump. (See section 9).
k) All pipework must be adequately supported with allowance expansion/
contraction especially with plastic pipework.
l) It is recommended that when installing water systems the last
connections to be made in the system should be breakable connections
to avoid any stresses on the unit connections.
IMPORTANT
1. All Pool Purifying Devices and Chemical Injection Systems to be fitted
down stream of the heat pump (see section 3.1) unless installation is as
per filter dosing. This includes the practice of dosing chemicals direct into
skimmer basket, which results in concentrated corrosive liquids passing
over vulnerable metal components.
2. Water quality must be maintained as follows:
3. Maximum pressure of water in heat pump circuit should not exceed
2.5bar for PPT8/12 (35 psi) and 3.5bar for PPT16/22 (50 psi).
Acidity pH pH 7.2 - 7.8
Total Alkalinity, as CaCO3ppm 80 - 120
Total Hardness, as CaCO3ppm 150 - 250
Total Dissolved Solids ppm 1000 Max
Maximum Salt Content ppm 35000 Max
Free Chlorine Range ppm 1 - 2 Domestic
Free Chlorine Range ppm 3 - 6 Commercial
Superchlorination max 30ppm for 24 hrs
Bromine ppm 2 - 5
Baquacil ppm 25 - 50
Ozone ppm 0.9 Max
Maximum Copper Content ppm 1
Aquamatic Ionic Purifier ppm 2 Max

Page 10
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
KEY ISOLATION VALVE BREAKABLE COUPLING NON RETURN VALVE THREE WAY VALVE
NON RETURN VALVE CHEMICAL DOSING
SANITISER OR
DEVICE, IF FITTED
AUX HEATER IF FITTED
FILTER
PUMP
TO WASTE FOR
WINTERISING
DRAIN DOWN
ANTI RETURN LOOP
TO BE INCORPORATED,
MINIMUM HEIGHT
100mm ABOVE HEAT PUMP
OUTLET PORT
(IF SANITISER FITTED)
100mm
CONDENSATE WATER
TO WASTE
SPARE PORT FOR
WINTERISING
FLUSHING
CONNECTION
TO WASTE
CALOREX HEAT PUMP
POOL
BYPASS VALVE
(NORMALLY
CLOSED)
3.1 Recommended Plumbing Schematic

Page 11
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
3.2 Determining
Water Flow
The heat pump is fitted with a water flow switch which inhibits the operation
of the heat pump when the water flow is less than the figure shown in the
table below.
Adjust the flow rate until the flow rate is adequate. The display on the
digital thermostat shows “noF” until adequate flow is reached.
PPT8/12 FLOW RATE 4500 L/hour
PPT16 FLOW RATE 7500 L/hour
PPT22 FLOW RATE 9960 L/hour
REMOVE BUNGS
BEFORE INSTALLING
HEAT PUMP
POOL WATER
IN
POOL WATER
OUT
CONDENSATE DRAIN
DIGITAL
THERMOSTAT
MODEL
Machine starts working
when flow rate rises
above L/hour
Machine stops working
if flow rate drops below
L/hour
PPT8 1500 840
PPT12 1500 840
PPT16 2500 2000
PPT22 1920 1500
Flow rates for water pressure switch

Page 12
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
4.0 Electrolytic Corrosion
in Swimming Pools
Electrolytic corrosion will occur when dissimilar metals that are in contact
with each other create a potential difference between themselves. Sometimes
separated by a conductive substance known as an electrolyte, the dissimilar
metals will create a small voltage (potential difference) that allows the ions of
one material to pass to the other.
Just like a battery, ions will pass from the most positive material to the more
negative material.
Anything more than 0.3 volts can cause the most positive material to degrade.
A swimming pool with its associated equipment can create this effect. The
pool water being an ideal electrolyte and components of the filtration circuit,
heating system, steps, lights etc providing the dissimilar metals needed to
complete the circuit.
Whilst these small voltages are rarely a safety threat, they can create
premature failure through corrosion. Not dissimilar to corrosion through
oxidation, electrolytic corrosion can cause complete failure of a metallic
material in a very short period of time.
In order to prevent this type of corrosion all metallic components in contact
with swimming pool water should be bonded together 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 that
bonding be retrofitted to existing pools, which may not be protected by this
system.

Page 13
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
4.1 Electrical (Machine
Wiring and Supply)
All electrical work to be carried out in accordance with l.E.E. standards, latest
issue, or local codes of practice as applicable.
The machine should be installed in line with EMC2004/108/EC.
Protected supply to incorporate fuses or motor type circuit breakers (Type C)
to specified rating, (see Data Sheet). H.R.C. fuses are recommended. An
isolator which disconnects all poles must be fitted within 2m and in sight of
machine.†
All units must be correctly earthed-grounded. An earth leakage trip of the
Current operating type (30mA) is recommended to be fitted to all pool
electrics.
INCONSISTENT ELECTRICAL SUPPLY
The following limits of operation must not be exceeded if Calorex machines are
to be guaranteed either in performance or warranty terms:
Minimum Maximum
Voltage single phase 207V 253V
Voltage three phase 360V 440V
Frequency - Hz 47,5 52,5
This voltage must be made available at the heat pump while running.
† Note the Isolator must have a minimum of 3mm air gap when turned off.
NOTE: Three phase heat pumps are fitted with a phase protection relay
and will not run if the phases are not connected in the correct order
(phase sequence) or if the supply voltage is 15% less than the nominal
voltage (415V for 3N~ 50Hz). The lamp on the phase rotation relay
(situated in the electric box is illuminated when the phases are correctly
connected and the voltage is sufficient.
IMPORTANT
The user should be made aware that THE WHOLE installation should be
isolated when working on ANY PART.

Page 14
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
MAINS IN
LOOSEN CAPTIVE SCREWS (6)
AND LIFT COVER OFF
ENSURE EARTH LEAD IS STILL
CONNECTED
ELECTRIC
BOX
SINGLE PHASE 230V ~1N 50Hz
N
L
12
13
14
15
5
6
7
8
9
16
17
18
19
10
11
REMOTE
ON/OFF INTERLOCKS
CABLE ENTRY
POINT
MAKE MAINS IN
EARTH
CONNECTION HERE
ELEC. BOX
EARTH STUD
121314 15
N
L
5 6 7 8 9
REVERSING
VALVE
SWITCH
FAN
N
FAN
L
1 61718191011
VOLT FREE POOL PUMP
RUN TERMINALS
SINGLE PHASE 230V ~1N 50Hz
N
L
12
13
14
15
5
6
7
8
9
16
17
18
19
10
11
REMOTE
ON/OFF INTERLOCKS
CABLE ENTRY
POINT
MAKE MAINS IN
EARTH
CONNECTION HERE
ELEC. BOX
EARTH STUD
121314 15
N
L
5 6 7 8 9
REVERSING
VALVE
SWITCH
FAN
N
FAN
L
1 61718191011
VOLT FREE POOL PUMP
RUN TERMINALS
THREE PHASE 400V ~3N 50Hz
MAKE MAINS IN
EARTH
CONNECTION HERE
MAKE MAINS IN
EARTH
CONNECTION HERE
121314 155 6 7 8 9 161718191011
N
L2
L1
L3
CABLE ENTRY
POINT
ELEC. BOX
EARTH STUD
INTERLOCKS
VOLT FREE POOL PUMP
RUN TERMINALS
121314155 6 7 8 9
'Y' VRSN
ONLY
161718191011
N
L2
L1
L3
1411
L1 L2 L3
REMOTE
ON/OFF
4.2 Location of Mains
Input and External
Interlock Terminals

Page 15
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
4.3 Pool Pump
Synchronisation
For installations where the filter pump, which also provides water to your
heat pump, is controlled by a time clock (supplied by the installer) your
Calorex heat pump can overridde “pump off” periods set on the time clock
so that the filter pump will run if your swimming pool requires heating. By
doing so your filter pump will only run when:
a) A block period of pump “running” has been set on the time clock for
filtration purposes.
b) The pool requires heating.
This feature operates by overriding the filter pump time clock for three
minutes each hour so that water is pumped through the heat pump.
If during this sampling period the heat pump detects a need for water
heating it will continue to override the time clock until the swimming pool
temperature is satisfied. If water heating is not required the filter pump will
turn off after the three minute sampling period and not restart untl the next
hourly sampling period or time clock pre set run time. This feature will
reduce filter pump run time and consequently save energy as well as
unnecessary filter pump wear and tear.
A pair of volt free terminals (numbered 14 and 15) are available to allow for
the heatpump to be switched on or off remotely.
CUSTOMERS EXTERNAL
PUMP/FILTER TIME CLOCK
N
L
CALOREX HEAT PUMP.
EXTERNAL COMPONENTS TO
BE WIRED TO TERMINAL
BLOCK LOCATED INSIDE
MACHINE ELECTRIC BOX.
18
19
POOL PUMP
STARTER
MAX RATING 3A
½ HP AT 250V

Page 16
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
AUX
T CNOLOGiC
X31SX
U
P
DEFROST LAMP
WATER HEATING LAMP
FAN LAMP
ALARM LAMP - FAULT
AUX AUX LAMP - POOL PUMP
NOT USED (CHILLING)
5.0 Digital Thermostat An adjustable touch screen digital thermostat controls and maintains the
water temperature and incorporates the indicator lamps.
Press and release the P key to display required temperature. To alter
required temperature press the up or down keys, a gentle touch is all that
is necessary. After 5 seconds the display reverts to actual water
temperature.
Not used
Increase Set Point
Also start/stop manual
defrost
Decrease Set Point
Access Set Point
Set Lamp

Page 17
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
SD638150 ISSUE 11
®
VOLT FREE
POOL PUMP RUN
MAX 3Amps
REMOTE ON/OFF
INTERLOCK
(DEFROST)
SENSOR POOL STAT
LIVE NEUTRAL
12
13
COMPRESSOR
RUN CAP SOFT
START
IF
FITTED
SOFT START
THERMAL
OVERLOAD
& FAULT
LIGHT
IF FITTED
HP SWITCH
LP SWITCH
BREAKS ON
PRESSURE
FALLING
BREAKS ON
PRESSURE
RISING
FLOW SWITCH
START CAP
RELAY/HARD
IF FITTED
FAN
CONTACTOR
DIGITAL INPUTS
MODEL
FUSE RATINGS
FUSE
PPT8ALX/ALY
PPT12ALX
3A
3A
11
10
21
20
19
18
13
14
17
15
16
23
(L)
N/O
N/O
N/C
COM
COM
COM
COM
N/O
OUT2
OUT4
N/O
OUT3
OUT1
19 18
3A
CONTROL FUSE
24
(N)
22
SUPPLY
1
4
2
9
10
12
C
S
R
C
L
C
H
(N/C)
(N/C)
A1
A2
2
65 (N/O)
(N/O)
1
11
3
di1
di2
di4
di3
com
1514
(WATER TEMP)
SENSOR
SOLENOID/REVERSING VALVE
6.0 Circuit Diagrams PPT8/12 ALX/ALY SINGLE PHASE 230V~1N 50Hz