Electrical Installation - Calorex VARIHEAT VH3 AA600 Manuel D'installation

2.5 ELECTRICAL INSTALLATION

ELECTRICAL SAFETY
It is important to ensure that all aspects of the installation comply with the latest I.E.E. Regulations.
It is also important to ensure that any remote devices which terminate within the pool hall are of the type and
voltage as specified in the latest I.E.E. Regulations.
The machine should be installed in accordance with EMC2004/108/EC.
PROTECTED SUPPLY
Whilst not mandatory, Calorex 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 GU, FAZC) to
specified rating (see data sheet) H.R.C. fuses are recommended. An isolator must be fitted within clear view
of the machine and not more than 2 metres away. The isolator must have a minimum of 3mm air gap when
in the off position.
INCONSISTENT ELECTRICAL SUPPLY.
The following limits of operation must not be exceeded if Calorex machines are to be guaranteed either in
performance or warranty terms :-
Voltage single phase -
Voltage three phase -
Frequency -
N.B The voltage must be measured at the heat pump mains terminals with all the fans/compressors
running at the rated condition.
Please note that AW1200/1500 three phase machines are fitted with a phase rotation relay and will not run if the
phases are connected incorrectly or if the voltage is 15% less than 400V (340V) for a three phase 50Hz machine
CORRECT CABLE SIZING
The cable supplying electricity to a machine with a given load must increase in cross sectional area (CSA)
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.
If resistance heaters are fitted an extra power supply will be required to the terminal blocks inside the
heater box, see data sheet for supply amps and fuse size.
MAINS IN
25mm DIA 2off
207V min, 253V max
360V min, 440V max
47.5Hz min, 52.5Hz max.
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SERVICE PANEL
SD437350 ISSUE 22