heater, the unique internal weir and baffle arrangement ensures that the air is channeled harmlessly
across the top of the heater and across the unheated ends of the elements. This avoids possible element
burnout and thermal inefficiency due to wasteful heating of air. The external enclosure is a sheet steel
case totally enclosing the electrical components. The enclosure is coated with a rust inhibiting, powder
coat finish. The electrical system, which is the nerve center of the unit, can be considered as three
separate systems engineered to provide years of service and optimum use of energy. They are as
follows:
a) The heating elements; are mounted via two cold legs through a high-grade PVC plate. These
elements
are made from titanium as standard and have an extremely low watts’ density due to
their design.
b) The control system; consists of the pilot switch, high limit thermostat, Pump interlock switch, a
temperature controller, magnetic contactors and sequencer (on larger units only). The controls
are wired into a control circuit designed to control the temperature of the water leaving the heater.
The high-limit thermostat is designed to open the control circuit and cut off the power in the event
of excessive temperature. A pump interlock switch is built-in to prevent the pool heater from
operating without the pump being energized, we use this because we have found flow switches to
be very unreliable.
c) The main current-carrying components; are the contactors. They are wired into the circuits which
carry the full amperage of the elements. The contactors open during a high temperature condition
to de-energize the elements. The heater has a temperature controller adjustable up to 45°C
(113°F) and has one manual reset type high temperature limit thermostat set at 48°C (118°F).
Installation: Location
Thermalec swimming pool heaters are quiet, do not emit exhaust fumes and may be conveniently located
in a shed or basement. Normal positioning of the pool heater should be near the pool filtration system.
Select a location conveniently close to incoming electrical service and where excessively long piping runs
are not required. Thermalec® heaters should never be installed outside where they are susceptible to
water.
Minimum clearance:
12THR
24THR
36THR
72THR
120THR
Front
36 (914)
36 (914)
36 (914)
36 (914)
36 (914)
Left
*
*
*
*
*
Right
*
*
*
*
*
Top
14 (356)
14 (356)
16 (406)
16 (406)
16 (406)
Back
8 (203)
8 (203)
11 (279)
17 (432)
17 (432)
* Required clearance is dependent on plumbing configuration used.
- Dimensions: Inches (mm)
- Temperature control is located on the front of the unit.
