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Kaysun Aquantia PRO Monobloc - KHP-MO Manual

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A main switch or other means of disconnection, having a contact separation in all poles, must be incorporated in the
fixed wiring in accordance with relevant local laws and regulations. Switch off the power supply before making any
connections. Use only copper wires. Never squeeze bundled cables and make sure they do not come in contact with
the piping and sharp edges. Make sure no external pressure is applied to the terminal connections. All field wiring and
components must be installed by a licensed electrician and must comply with relevant local laws and regulations.
The field wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions
given below.
Be sure to use a dedicated power supply. Never use a power supply shared by another appliance.
Be sure to establish a ground. Do not ground the unit to a utility pipe, surge protector, or telephone ground. Incomplete
grounding may cause electrical shock.
Be sure to install a ground fault circuit interrupter (30 mA). Failure to do so may cause electrical shock.
Be sure to install the required fuses or circuit breakers.
WARNING
9.7.2 Wiring overview
The ground fault circuit interrupter must be a high- speed type breaker of 30 mA (<0.1 s).
NOTE
This unit is equipped with an inverter. Installing a phase advancing capacitor not only will reduce the power factor improve-
ment effect, but also may cause abnormal heating of the capacitor due to high-frequency waves. Never install a phase
advancing capacitor as it could lead to an accident.
The illustration below gives an overview of the required field wiring between several parts of the installation. Refer also to "8
Typical application examples".
Secure the electrical wiring with cable ties as shown in figure so that it does not come in contact with the piping, particularly
on the high-pressure side.
Make sure no external pressure is applied to the terminal connectors.
When installing the ground fault circuit interrupter make sure that it is compatible with the inverter (resistant to high frequency
electrical noise) to avoid unnecessary opening of the ground fault circuit interrupter.
Fix cables so that cables do not make contact with the pipes (especially on the high pressure side).
9.7.1 Precautions on electrical wiring work
9.6 Water piping insulation
9.7 Field wiring
The complete water circuit including all piping, water piping must be insulated to prevent condensation during cooling operation
and reduction of the heating and cooling capacity as well as prevention of freezing of the outside water piping during winter. The
insulation material should at least of B1 fire resistance rating and complies with all applicable legislation. The thickness of the
sealing materials must be at least 13 mm with thermal conductivity 0.039 W/mK in order to prevent freezing on the outside water
piping.
If the outdoor ambient temperature is higher than 30°C and the humidity is higher than RH 80%, then the thickness of the
sealing materials should be at least 20 mm in order to avoid condensation on the surface of the seal.
NOTE
During filling, it might not be possible to remove all air in the system. Remaining air will be removed through the
automatic air purge valves during the first operating hours of the system. Topping up the water afterwards might be
required.
The water pressure indicated on the manometer will vary depending on the water temperature (higher pressure at
higher water temperature). However, at all times water pressure should remain above 0.3 bar to avoid air entering
the circuit.
The unit might drain-off too much water through the pressure relief valve.
Water quality should be complied with EN 98/83 EC Directives.
Detailed water quality condition can be found in EN 98/83 EC Directives.
… 36 …


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