Pahlen Aqua compact User manual

Copyright © 2021 Pahlén AB, Box 728, SE-194 27 Upplands Väsby, Sweden
Tel. [phone], Fax [phone], e-mail: [email protected], www.pahlen.com
User manual
Aqua compact
MA45-25 rev.6 2021

9
ENGLISH
Electric heater Aqua compact
MA45-25 GB Translation of the original instructions (Swedish)
It is important that you read this manual carefully to secure the function and useful life of the pool equipment.
This manual is also available from www.pahlen.com
Pahlén AB is not responsible for the product warranty or damage caused by incorrect installation, use or incorrect maintenance.
WARNING
• This appliance must not be used to heat drinking water.
• This appliance must not be used in aggressive water, salt water or pools/hot tubs with a
chlorine machine/salt chlorinator, see the recommended water quality values.
• The water inlet on this appliance must not be connected to the water from any other water
heating system.
• The appliance must be installed in accordance with applicable national laws and provisions
and the electrical installation must only be carried out by a qualied electrician.
• Do not start installing the appliance until you have read and understood the installation
instructions and warnings in this manual. If you have any questions about the installation
instructions or warnings, please contact your local dealer.
• Under no circumstances may this appliance be started without being completely lled with
water.
• This appliance must not be covered, placed near combustible material or in direct sunlight.
• This appliance must not be used by very young children (0-3 years).
• This appliance must not be used by young children (3-8 years) and people with signicant
and complex disabilities unless they are under constant supervision by a person who is
responsible for their safety.
• This appliance may be used by children over 8 years of age and persons with reduced
physical, sensory or mental capabilities or lack of experience or knowledge, provided that
they’re under supervision or have received information on how to use the appliance safely
and understand risks that may occur by a person who is responsible for their safety.
• Children are not allowed to play with the appliance.
• This appliance should not be cleaned or maintained by children without supervision.
• Failure to follow the installation instructions invalidates the product warranty.

10
ENGLISH
Electric heater Aqua compact
MA45-25 GB Translation of the original instructions (Swedish)
Product description
The Aqua compact electric heater is available from 3 kW to 18 kW, see the type plate on the product.
The heater is supplied with built-in safety functions such as an adjustable thermostat (with a temperature range of 0 -45°C),
overheating protection (with a maximum breakage temperature of 60°C) and a ow monitor.
The casing is made of reinforced thermoplastic (short casing: 3/6/9 kW, long casing: 12/15/18 kW), the heater element is made
of Incoloy 825 (or titanium) and the connections are made of PVC.
As standard, connections for internal gluing to Ø50 mm PVC pipes are included.
Option A: connections for internal gluing to Ø1½" PVC pipes.
Option B: connections with 1½" internal thread.
NOTE! The standard version of the heater (with Incoloy element) is not intended for use in aggressive water, salt water or in
pools with a chlorine machine/salt generator. In such contexts, Aqua Compact Titanium is required.
Technical data
Min. ow 90 l/min
Max. ow 300 l/min
Voltage: 230 V 1-phase (3-6 kW), 230 V 3-phase (3-18 kW), 400 V 3-phase (3-18 kW)
Max. pressure: 2.5 bar (2.5 Pa)
Max. temperature: 45°C
Enclosure class: IP45
Rated power and power consumption
Power Rated power 220-240 V / 380-415 V 50-60 Hz Power consumption
Standard Titanium 230 V, 1-phase 230 V, 3-phase 400 V, 3-phase
3 kW 2.7–3.5 kW 2.7–3.2 kW 13 A 8 A 5 A
6 kW 5.4–6.5 kW 5.4–6.5 kW 26 A 15 A 9 A
9 kW 8.1–9.7 kW 8.1–9.7 kW —23 A 14 A
12 kW 10.8–13 kW 10.8–12.9 kW —31 A 18 A
15 kW 13.5–16.2 kW 13.5–16.1 kW —38 A 22 A
18 kW 16.2–19.4 kW 16.2–19.4 kW —46 A 27 A
Dimensions

11
ENGLISH
Electric heater Aqua compact
MA45-25 GB Translation of the original instructions (Swedish)
Drawing no: M10879-3
2017-12-14 ASA
Installation elvärmare Aqua Compact
1.
6.
7.
10.
2.
3.
4.
3.
5.
9.
>
>
5
5
0
0
0
0
>
>
2
2
0
0
0
0
8.
>
>
2
2
0
0
0
0
min 200
min 200
Pipe connections are made BEFORE electrical installation.
The electric heater should be installed horizontally according to the drawing, so that it is always fully lled with water.
Under no circumstances may it be started without being completely lled with water.
• Connections must be made using PVC pipe with at least 200 mm of straight length before and after the heater.
The standard version’s connection is glued to PVC pipes with an outside diameter of 50 mm (inside diameter min. 42 mm).
Connection A: glued to PVC pipe with outside diameter Ø1½" (inside diameter min 42 mm).
Connection B: hose with an inside diameter min. 35 mm is connected and must be clamped to ensure 200 mm straight length
before and after the heater.
• Do not install the shut-o󰀨 valve between the heater and the pool. If a valve is required here, it must be a non-return valve.
• The heater must not be covered, placed close to combustible material or in direct sunlight.
• If the heater is placed against combustible material, a reproof board or the like must be placed between the heater and
combustible material. The board must cover 10 cm outside the heater's outer dimensions.
• The heater must not be installed in a position that is exposed to the elements and must be protected against the ingress of
water.
• If the position of the heater is such that there is a risk of freezing, the installation must be carried out in such a way that the
heater can be drained of all water.
Failure to follow the installation instructions invalidates the product warranty.
Installation example pipe
1. Skimmer
2. Inlet
3. Light
4. JetSwim
5. Main drain
6. Pump
7. Filter
8. Electric heater
9. Check valve
10. Drain
NOTE!
The electric heater must
always be located at least
200 mm below the water
surface.
WARNING
• The water inlet on this appliance must not be connected to the inlet water from any other
heating system.
• This appliance must ALWAYS be installed at least 200 mm below the normal water level,
see the installation example.
• Valves must not be installed so that the ow of water through the heater can be unintentio-
nally turned o󰀨.
• The installation must be carried out in such a way that the heater cannot be self-drained in
the absence of pool water circulation and air pockets cannot be formed.
• The heater must be installed on the return line to the pool AFTER a possible lter.
• If necessary, chlorine, acid or similar should be dosed after the heater in the direction of ow .
• The ow direction marking on the heater indicates the connections that apply for the inlet
and outlet.
Installation in circulation systems

12
ENGLISH
Electric heater Aqua compact
MA45-25 GB Translation of the original instructions (Swedish)
Minimum requirements for contactors (main isolator) and coupling material
Connection options 230 V, 1-phase 230 V, 3-phase 400 V, 3-phase
Isolator poles 24 4
Voltage 240 VAC 240 VAC -415 VAC
Power According to the rating
plate*
According to the rating
plate*
According to the rating
plate*
Current According to the rating
plate*
According to the rating
plate*
According to the rating
plate*
Temperature 60ºC** 60ºC** 60ºC**
* See the table “Rated power and power consumption”
** The temperature the component receives at the installation site at the maximum ambient temperature, but at least +45º and
the maximum power output from the heater. The temperature depends on how well ventilated the installation is.
Electrical installation
WARNING
• The electrical installation may only be carried out by a qualied electrician in accordance
with the instructions provided with the heater.
• As electrical installation regulations di󰀨er from country to country, contactors, cables,
connection components, and enclosures must be selected based on local regulations.
• A main isolator must be installed before all live electrical connections on the heater. This
must be an all-pole isolator that satises the requirements set out in IEC/EN 60335-1
paragraphs 7.12.2, 22.2 and 24.3.
• Pahlén recommends the installation of a residual current device.
• The heater must be connected according to the wiring diagram below.
• The control voltage is connected: for 230 V 1-phase and 400 V 3-phase to L1 and N,
for 230 V 3-phase to L1 and L2.
Note that the control voltage must be tted with a separate fuse of 5-10 amps for the live
electrical connections.
• The heater must be installed in such a way that it cannot be activated unless the circulation
pump is in operation (su󰀩cient ow), i.e. the control current to the heater’s contactors must
be controlled over the pump’s contactors.
• The voltage to the heater must not uctuate more than +5% to –10% in relation to the
specication of the model and type plate.
• The installation method must be chosen in such a way that the temperature limit is not
exceeded for any component at full load.
NOTE!
Installed cables are only test cables. These must not be used for connection.

13
ENGLISH
Electric heater Aqua compact
MA45-25 GB Translation of the original instructions (Swedish)
Aqua Compact 380-415V 3-phase
C2
C1
L3
L2
L1
E10089-0
2020-10-08 ASA
A1A1 A2A2
L1
L2
L3
BU = Blue
PK = Pink
WH = White
3 1
BU
BU
WH
WH
PK
PK
Aqua Compact
F1
M
N
L1
L1
N
M
Aqua Compact 220-240V 3-phase
C2
C1
L3
L2
L1
E10090-0
2020-10-06 ASA
A1A1 A2A2
L1
L2
L3
BU = Blue
PK = Pink
WH = White
3 1
BU
BU
WH
WH
PK
PK
Aqua Compact
F1
M
L1
L2
L1
N
M
Aqua Compact 220-240V 1-phase
C2
C1
N
L1
E10091-0
2020-10-08 ASA
A1A1 A2A2
L1
L2
L3
BU = Blue
PK = Pink
WH = White
31
BU
BU
WH
WH
PK
PK
Aqua Compact
F1
M
N
L1
L1
N
M
380–415 V 3~
BU = blue
PK = pink
WH = white
Wiring diagram
Overheating
protection
Pressostat pin 1 and 3
or Flow guard
Potential-free contact
External motor
protection
3-phase
Thermostat
Heater element
3-18 kW
Fuse
5–10 A
External motor
protection
1-phase
220-240 V 3~
BU = blue
PK = pink
WH = white
Overheating
protection
Pressostat pin 1 and 3
or Flow guard
Potential-free contact
External motor
protection
3-phase
Thermostat
Heater element
3-18 kW
Fuse
5–10 A
External motor
protection
1-phase
220-240 V 1~
BU = blue
PK = pink
WH = white
Overheating
protection
Pressostat pin 1 and 3
or Flow guard
Potential-free contact
External motor
protection
3-phase
Thermostat
Heater element
3-6 kW
Fuse
5–10 A
External motor
protection
1-phase

14
ENGLISH
Electric heater Aqua compact
MA45-25 GB Translation of the original instructions (Swedish)
This document and its contents are the exclusive
property of Pahléns and may not be copied,
reproduced, transmitted or communicated to a third
party, or used for any purpose without written permission.
Art.no.
Rev.no.
Scale
Designed by: Approved by:
Revised by: Date
Drawn by: Date
Drawing number
Assembly drawing no.
Surface treatment
part of ISO 2768-1
The tolerance class in accordance with this
E
Box 728, SE-194 27 Upplands Väsby, Sweden
Phone [phone], Fax [phone]
14160X-03
ASA 2019-07-15
ASA
(Elv plast)
Aqua Compact 3-18kW
M13053 0
B
A
Troubleshooting
1. Check the fuses.
2. Check that the system has the requisite ow through the heater.
3. For safety reasons, the heater's overheating protection trips with a lack of water or poor circulation. This is the most common
reason why the heater “stops working”. Check whether the overheating protection has tripped, investigate the cause.
After the cause has been established and rectied, the overheating protection is reset by:
- Unscrewing the protective cap (A).
- Press in the reset button (B) on the junction box.
- Ret the protective cap again.
4. Check the operation of the heater, see point 4 under “Start”.
5. Reset the thermostat to a higher temperature.
6. If the problem persists: contact the installer.
Disposal and recycling
You must dispose of this product in accordance with local laws and provisions.
Since this product contains electronic components, it must be disposed of separately from household waste.
When this product reaches the end of its life cycle, contact your local authorities to nd out more about disposal and recycling.
Start
1. Fill the pool with water to the right level.
2. Start the pump for pool water circulation.
3. Check that the water circulates as normal in the system and that all air is vented from the system.
The heater must be completely water-lled before switching on the power.
Only when all air has been vented from the system can the heater be switched on.
4. Functional test the heater by turning the thermostat knob back and forth and check that the thermostat contactor switches
and releases.
The ow monitor is checked by turning o󰀨 the ow through the heater with a shut-o󰀨 valve and check that the contactors
release. Turn on the water again. The contactors should then switch on again.
5. Set the desired pool temperature with the thermostat knob.
6. The water is now heated to the desired temperature.
Operation
When backwashing and cleaning the lter, switch o󰀨 the power to the heater.
In the event of a risk of freezing, the power must be switched o󰀨 and the heater drained of all water.
General info
In order to ensure electric heater works well and has a long-life, it is important that the following recommended values regarding
water quality are followed.
Chlorine content: max 3.5 mg/l (ppm)*
pH-value: 7.2–7.6
Alkalinity: 60–120 mg/l (ppm)
Calcium hardness: 100–300 mg/l (ppm)
Iron: max 0.1 mg/l (ppm)*
Copper: max 0.2 mg/l (ppm)*
Manganese: max 0.05 mg/l (ppm)*
Phosphorus: max 0.01 mg/l (ppm)*
Nitrate: max 50 mg/l (ppm)*
Incoloy Titan
Chloride (salt) content: max 250 mg/l (ppm) max 35,000 mg/l (ppm)
* according to EN 16713-3
Failure to follow the limit values for water quality invalidates the product warranty.