Dantherm HPP Serie Manual De Instalación página 9

Electrical safety
Protected supply
Important
Inconsistent electrical supply
Correct cable sizing
Electrical installation
It is important to ensure that all aspects of the installation comply with the latest I.E.T. Regulations or local
codes of practice as applicable.
The machine should be installed in accordance with EMC 2004/108/EC
Whilst not mandatory, Dantherm recommend that an R.C.C.B. is always fitted or that the supply is to
local electricity authority recommendations, and that all ducting is bonded in accordance with these
regulations.
The supply to the machine should incorporate fuses or motor rated circuit breakers (Type C) to specified
rating, (See Technical specifications for HPP on page 24
H.R.C. fuses are recommended. An isolator must be fitted within clear view and not more than 2 metres
away.
The isolator must have a minimum 3mm air gap in the off position.
All units must be correctly earthed/grounded. An earth leakage trip is recommended to be fitted to all
pool electrics.
The user should be made aware that:
The wholeinstallation should be isolated when working on any part of the installation.
The following limits of operation must not be exceeded if Dantherm machines are to be guaranteed either
in performance or warranty terms:
Voltage
Single phase machines
3-phase machines
Frequency
Note: The voltage must be measured at the HPP mains terminals with all the fans/compressors running at
the rated load condition.
The cable supplying electricity to a machine with a given load must increase in cross sectional area (C.S.A)
as the length increases in order that the voltage drop within the cable does not exceed recommended
limits.
Cable sizing should be calculated by an approved electrician with due consideration to I.E.E and
local codes of practice.
HPP Heat pump Minimum Cable Size
6 2.5mm2
8 2.5mm2
12 4mm2
15 6mm2
20 2.5mm2
Warning: It is necessary to wait three minutes after the supply is disconnected before removing any panels
or commencing servicing of the HPP heat pump.
Minimum Maximum
207V 253V
360V 424V
47.5Hz 52.5Hz
Voltage
1 230V
x
3x400V
EN
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