Haier HU062WAMNA Operation & Installation Manual page 14

Installation Instructions
D. Water Piping Installation
Simple 2 zone (Floor heating + Radiator)
Indoor
Radiator
Thermistor 1
Outdoor
Mixing valve Thermistor 2
Pump
Floor Heating 1
• Make sure the water piping is connected complying the European regulations.
• Cover the pipe end to prevent dust entering the water piping when inserting it through a hole in the wall.
• Flush tap water through the water piping before connecting to indoor unit to ensure there is no impurities in the water
system.
• Use two spanners to connect the water piping with the unit.
• The water piping should be covered insulation materials to reduce heat loss.
• Check the water leakage condition along the piping especially in connecting joint during trial running.
Note:
• Do not charge water to the system before completing the installation and insulating the piping in winter.
• Drain the water out of the system if the unit does not operate for a long time.
• Choose proper buffer tank and auxiliary electrical water heater to connect to the system.
• Do not over tighten, over tightening may cause water leakage.
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