11
Make sure that the unit is placed horizontally.
6.4. Installation Place
a. The unit can be installed on any place outdoor which can carry heavy
machine such as terrace, housetop, ground and so on.
b. The location must have good ventilation.
c. The place is free from heat radiation and other fire flame.
d. A pall is needed in winter to protect the heat pump from snow.
e. There must be not obstacles near the air inlet and outlet of the heat pump.
A place which is free from strong air blowing.
f. There must be water channel around the heat pump to drain the
condensing water. There must be enough space around the unit for
maintenance.
g. A place which is far away operating or potential ignition sources (for
example: open flames, an operating gas appliance or an operating
electric heater or Electric Spark or hot object)
6.5. Refrigerant charge
The heat pump is not infused with the refrigerant 290 and full of high-pressure
nitrogen or keep it in a vacuum instead, please follow these steps to infusing
refrigerant R290.
1. Preparations
4. Vacuumize the heat pump. Connect the vacuum pump with the valve 2, keep
vacuum pump running until the absolute pressure below 30Pa or operating time
more than one hour.
a. Please in a well-ventilated environment while
charge refrigerant.
b. Keep away from open flames or potential
sources of fire.
c. Disconnect the power supply of the heat pump.
d. Carefully check the nameplate of the heat pump
and charge strictly according to the labeled amount.
2. Check the pressure of nitrogen gas inside the
system. The heat pump has charged about 30 Bar
pressure nitrogen gas inside the system, please
check whether there is still high-pressure nitrogen
before charging refrigerant, otherwise check the
leakage point. (Use spanner remove the seal nut 1
and 3, use 5mm inner hexagon spanner open the
valve 2. If it can Blowing out the high-pressure gas
then the heat pump is not leaking.)
3. Use 5mm inner hexagon spanner open the valve 2
and release all the nitrogen gas inside the system.
Summary of Contents for R290 Series
Page 1: ...INSTALLATIONMANUAL AIR TO WATER HEAT PUMP SERIES R290...
Page 2: ...MODEL KHX 14PY3 KHX 16PY3 Air to Water Heat Pump Installation Manual...
Page 9: ...6 4 Unit Dimension mm 4 1 Models KHX 14PY3...
Page 23: ...9 1 Model KHX 14PY3 9 Wiring Diagram 20...
Page 24: ...21 9 2 Model KHX 16PY3...
Page 38: ...35 V202109HH01...
Page 39: ...NOTE...
Page 40: ...kaisai com 20220425 0003...
