Thermalec Heater 36THR 30 kW to 36 kW
Product Description
Fitted with a thermometer to indicate the outlet temperature, which enables flow rates to be adjusted when heaters are either fitted with a by-pass, branched off a much larger flow pipe, are used in multiples or are operated in parallel with an alternative means of heating.
Circuit breakers are fitted instead of the On/Off switch and protect the heavy power circuits against short circuit. These not only act as the main switch, but in the event of a water temperature rise within the heater being sufficient to operate the safety thermostat, a trip is triggered within the breaker such that the heater is totally isolated at its point of supply.
The unit will not operate again until both the safety thermostat and the breakers are manually reset. Operation of the of the safety thermostat switches off the working contactors before energising the in-built shunt trip of the breaker, giving the unique Thermalec double protection against overheating and damage to the elements.
FEATURES
The construction of the heater is solid and robust, to ensure years of safe and reliable service.
The contact materials are highly resistant to corrosion from pool chemicals. Thermalec® pool and spa heaters can safely be used with sea water pools as well as in demanding applications such as Hydro- and Thalasso- therapy.
The heating elements have a very low watts density (10.54 W/cm²), ensuring minimal scale build-up and long element life.
The heating elements are always submerged in water. Any air bubbles entering the heater pass through it above the water and across the unheated parts of the elements, preventing any damage to the latter.
The patented weir and baffle system inside the heater causes the water to flow through it in a spiral. This increases uniformity of the water temperature inside the heater and prevents direct impingement of cold water onto the elements.
The spiral flow regime of the water inside the heater discourages scale formation, extending element life.
The heaters have no flow switch. These are notoriously unreliable. Any air bubbles passing through the heater will cause any switch to make and break repeatedly in rapid succession, causing the contactors to do the same, thus shortening their life.
Thermalec® heaters are flexible: The water flow direction is normally left to right. If required, this can be easily changed on installation by means of a simple modification.
The thermostats used in Thermalec® pool and spa heaters have a low operating differential. This is essential to maintain the swimming pool at a virtually constant temperature. Heaters with higher operating differentials are likely to allow the pool to cool to an uncomfortably low temperature before switching the heating on.
The 36PHR heaters are equipped with a mains circuit breaker, a detail often overlooked in pool heaters.
Top quality contactors have been used and their ratings generously selected to give a long service life and minimum risk of operational problems, particularly in pool plant room conditions.
As a safety precaution, the heaters are provided with an interlock relay, which has to be connected to the filter pump control circuit. The heater will not operate unless the interlock is wired and the filter pump is energised.
Status indicator lamps on front of panel to facilitate troubleshooting and diagnostics.
Thermalec® pool and spa heaters comply with all current and relevant EU regulations and directives.
Thermalec® pool and spa heaters have a two-year guarantee.
OPERATION
Before switching any power on, it is ensured that the heater is full of water and that water is flowing through it. The mains power isthen switched on, followed by the circuit breaker on the heater. A red indicator shows that the heater is powered. An amber light on the heater indicates that the filter pump is in operation. If the
pump does not operate or if the pump interlock has not beenfitted, the heater will not heat.
The desired pool temperature is now set using the thermostatdial. A green light on the heater indicates that the heating elements are powered and water is being heated. When the set temperature is reached, the green light is extinguished. A white light on the heater indicates that the water temperature is below th factory set safety thermostat trip level. If this temperature is reached, the heater has overheated. In this case, the safety thermostat trips and the unit is shut down. This trip must be reset
manually.
In normal operation, the green light will only be lit (and heating will occur) if all the other lamps are lit and the pool water temperature is below the set temperature.
ELECTRICAL DATA
Protection level: IP 21
Fuses: 2 x 2 Amp
Pump interlock voltage: 230 V AC
Element heat flux: 11.5 W/cm² max.
DIMENSIONS
Packed dimensions: 660 x 450 x 330 mm
Packed weight: 52 kg
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