Maintenance; Troubleshooting - Pahlen Aqua SPA Anleitung

Electric heater Aqua SPA
Item no. 141650, 141651, 141652
Product description
Suitable for small pools and spas.
The heater is supplied with an adjustable thermostat in the termperature range 0-45°C, overheating protection to maximum
termperature 60°C and a flow switch that cuts off the heater if the water flow is below 90 l/min.
The heater body is made of plastic and the heating element Incoloy 825. The heater must not be used in aggressive water,
salt water or in pools where a salt chlorinator is used.
The connections are made of PVC, inside solvent socket Ø50mm.
Technical specifications
Minimum flow: 90 l/min
Maximum flow: 300 l/min
Power: 230V single phase.
Max pressure: 1 bar
Max temperature: 45°C
Recommendation regarding water quality
In order to provide for good function and long life for the heater, it is important
that the values for the pool water are within the following limits:
Chlorine content:
Chloride (salt) content:
pH-value:
Alkalinity:
Calcium hardness:
If the limit values for the water quality are not followed the product guarantee is void.
Installation pipework
Install the heater so that it is positioned 200 mm below the normal water level in the pool, see next page.
Important! The connection box on the heater must always point upwards.
The installation shall be done so that the heater can be totally drained of water if necessary.
Gate valves must not be installed in the circuit so that the water flow to the heater can be shut off.
If a valve is required, install a check valve between the pool and the heater.
The heater may be connected to either the pressure or the suction side of the pool pump and can also be installed directly
onto the pump.
A water level control can be installed in the pool so that the heater can be automatically disconnected at low water level.
Installation electrical system
The electric installation must be done by a licenced electrician.
The heater shall be connected with phase, zero and protective ground level.
Connect the heater so that it is controlled over the supply to the pool pump or by a separate contactor, that is controlled from the
electrical supply of the pump. It should not be possible to operate the heater if there is no water circulation.
Start
1. Fill the pool to the correct level
2. Start the pool pump
3. When the system is completely empty of air, start the heater and set the thermostat.
4. The water will now be heated to the desired temperature.

Maintenance

If there is a risk of freezing, the power supply must be switched off and the heater must be totally drained of water.
Trouble shooting
If at any time there is a lack of water or poor water circulation, the overheating protection may operate. If this occurs:
1. Ascertain and rectify the reason for the overheating.
2. When the reason has been ascerained,
-Losen the protective cap, see fig beside.
-Press the reset button on the connection box.
-Put the cap back.
Copyright © 2015 Pahlén AB, Box 728, SE-194 27 Upplands Väsby, Sweden
Tel. +46 8 594 110 50, Fax +46 8 590 868 80, e-mail: info@pahlen.se, www.pahlen.com
max 3 mg/l (ppm)
max 250 mg/l
7,2 - 7,6
60-120 mg/l (ppm)
100-300 mg/l (ppm)
A ( 1 : 1 )
Diagram
Protective cap
Cap
A
Electric heater
3
Overheating
Flow switch
limit
1
control
2
1
1
2
Thermostat
A ( 1 : 1 )
Protective cap
A
Installation instruction
1~230V
L N
Cap
Reset
Reset button
button
MA45-27E
2015