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5.5 Electrical Connection
CAUTION:
before connecting the heat pump, make sure that the main circuit is isolated
and disconnected.
All electrical connections must be performed by a licensed electrician and must confirm to
all national, state and local electrical codes in effect at the time of installation.
The heat pump must be connected to a suitable rated and weather protected power
supply. The supply line should be a dedicated power circuit and means for disconnection
must be incorporated in the fixed wiring in accordance with your local wiring regulations.
Means for disconnection from the supply mains should have a contact separation in all
poles that provide full disconnection under over
Voltage Category III conditions.
Characteristics of the electric supply:
• 230 V +/- 10%, single-phase current, or 380 V +/- 10%, three-phase current,50 Hz - Mode
of neutral TT and TN.S; the circuit of heat pump must be connected to an earth circuit.
Characteristic minimum of the protection:
• Protection must be of 16 A, by circuit breaker or fuse; it must protect the Heat pump
exclusively; the circuit breaker must be specified with curve D, the fuse must be
specified Am.
• Differential protection : 30 mA (the length of cable between the connector block of the
heat pump and the circuit breaker / fuse should not exceed 12 m).
Control:
The heat pump is fitted with a water flow switch which is used to signal the software card
when the water flow is sufficient.
The heat pump can also directly control filtration pump operation using a contacting relay
(not supplied). Please contact us for further information if you wish to configure the heat
pump in this way.
The recommended water flow is 5m3/h.
6. Water Flow and Refrigerating Circuit Pressure
After installation, set the pressure of the refrigerant circuit to ensure optimal operation of
the heat pump, as follows:
Stage 1:
Before starting the Heat Pump, the ambient temperature should
be around 20°C, & the refrigerant meter shows pressure between
14 - 16kg/cm2.
Stage 2:
Close the by-pass valve and open the large inlet and outlet
valves of the heat pump so that all of the water flow goes
through the heat pump.
Summary of Contents for Power Smart SHP-100
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