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MidiHeat EHD
MA45-33E
ENGLISH
Product description
Pahlén’s Midi Heat EHD is a compact electric heater for swimming pools. It is equipped with a digital thermostat that controls
the pool water temperature (max + 45ºC). Its metal chassis plate includes water container made of glass-fiber reinforced
polypropylene with efficient and corrosion-proof heating elements of titanium.
The electric heater is in effect from 18–60 kW for 230V (220–240V 3-phase) and from 18–72kW for 400V (380–415V 3-phase).
Check rating plate on the back of the heater for the applicable data.
Several Midi Heat Digital electric heaters can be connected in parallel (2-10 devices) and controlled by the (Master) electric
heater instead of adjusting individual temperature settings for every one of them.
Rating platet
Overheating
protection
Fig. 1
On/Off
Safety
The heater must be installed in accordance with local laws and regulations and with the energy company rules.
The heater must not be covered or placed near flammable materials or in direct sunlight.
The heater built-in safety devices are a flow switch and a manually reset overheating protection, dual contactors for each
heater and an interlock (terminals P2: 1, 2) of the circulation pump contactor.
The immersion heaters are electronically controlled by a thermostat in order to provide the desired water temperature.
The heater should under no circumstances be started without being completely filled with water.
“The device can be used by children aged from 8 years and cannot be used by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience or knowledge, unless they have been given some supervision
or information about how to use the device safely and understand the risks that may occur. Children should not play with the
appliance.
Cleaning and maintenance shall not be performed by children without supervision”, according to the Regulation EN 60335-1
Section 7.12.
Tekniska data
Max. load
2 bar (0.2 MPa)
Max. flow
300 l/min
Min.flow
170 l/min
Ambient temperature
+5ºC till +40ºC
General information
Follow these instructions concerning water quality:
Free chlorine:
0.5-1.5 mg/liter (ppm)
Combined chlorine:
0-0.5 mg/liter (ppm)
Total chlorine:
0.5-2.0 mg/liter (ppm)
Chloride (salt) content: —
pH-value:
7.2-7.6
Alkalinity:
60-120 mg/liter (ppm)
Calcium hardness:
100-300 mg/liter (ppm)
