Thermalec ZENITH ZHR 96, Instruction Manual

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Zenith Range Instruction Manual
Page 9
Introduction
The Thermalec Zenith heater is designed for use with swimming pools, spas and other
similar installations.
To prevent damage to the heater it must not be operated unless it is fully flooded with a
sufficient flow of pool water
.
An interlock is fitted, ensuring that the heater cannot be operated unless the filter pump
is running.
A temperature controller is fitted to allow control of the water temperature in the range
15 to 45
° C. The maximum water temperature is limited to 52 ° C by a safety thermostat.
A thermometer displays the heater outlet water temperature when the heater is OFF.
When the heater is ON the reading may be slightly higher, depending on the flow rate
through the heater.
The heater is designed to operate at a maximum pressure of 2 bar (30 psi). Exceeding this
limit will operate the pressure relief valves located on the heater vessel .
The pool temperature will rise gradually if the heater has been sized according to our
published sizing methods.
These are designed such that in May of an average year, in North-western Europe, an
outdoor pool that is heated during the off-peak power supply period of seven hours a
day, will take about five nights to reach the required temperature. It is assumed that the
pool would be equipped with a solar cover. The actual time taken to reach temperature is
determined by the ambient air and water temperatures and by the overall heat losses
from the pool.
Installation
Regulations & Codes of Practice
.
This heater must be installed by a competent and certified person, strictly in accordance
with the relevant standards and regulations in the country of use for the installation of
mains powered electrical equipment in the vicinity swimming.
In the UK these standards are BS 7671 (lEE Regulations, 16
th
Edition) and the SPATA
standards. Electrical installations for swimming pools in the UK are classified as
‘Notifiable’ under Part P of the Building Regulations 2005. This means that a qualified
electrician, registered with a self-certification scheme, must carry out the work.
Alternatively, another person may carry out the work, but it must be notified to the local
authority who will arrange for inspection & testing to be carried out
.