Installation; Hydronic Box - Haier HU062WAMNA Service Manual

14. Installation

14.1 Hydronic box

Safety Precautions
• Read the following "SAFETY PRECAUTIONS" carefully before installation.
• Electrical works and water installation works must be completed by a qualified electrician and qualified water
system installer respectively in accordance with local and national building codes.
• The caution items stated here must be followed to minimize the risk of fire, electric shock or personal injury.
Incorrect installation due to ignoring of the instruction will cause harm or damage.
• After completion of installation, confirm there is no leakage of water and refrigerant gas. It will cause water
damage, electrical shock, fire, explosion or death and may generate toxic gas.
• The installing technician should carry out a trial running to confirm there is no abnormality about the system after
completing the installation. Please remind the customer to keep the installation manual for future reference.
• If the unit is transferred to a new user, this manual shall also be transferred along with the machine.
• If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice
and information.
• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the
manufacturer. Any unfit or incompatible material may cause product damage, burst and serious injury.
• Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the
single outlet with other electrical appliances. Poor contact, poor insulation or over current will cause electrical
shock or fire.
• Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may
happen.
• Children should be prevented access to the equipment. Keep the package material away from children.
• Do not expose the appliance to heat, flame, sparks. or other sources of ignition. Else, it may explode and cause
injury or death.
• Use only Haier accessories and components with this equipment. Failure to use unapproved or 3rd party
accessories could result in damage, electrical shock or fire.
• Do not add or replace refrigerant other than the specified, it may cause product damage, burst and Injury etc.
• Make sure installation is completed by authorized dealer or technician, installation done by the user it will cause
water leakage, shock or fire.
• Take measures to protect the equipment against severe weather and earthquakes during installation.
• This is a R32 model, use piping, flare nut and tools which is specified for R32 refrigerant. Using of existing (R22)
piping, flare nut and tools may cause abnormally high pressure in the system, and possibly result in explosion
and injury.
• Install at a strong and firm location which is able to withstand weight of the set. If the strength is not enough or
installation is not property done, the set will drop and cause injury.
• Tighten the flare nut with torque wrench according to specified method. If the flare nut is over tightened, the flare
may break and cause refrigerant gas leakage.
• Make sure there is adequate ventilation in the room if refrigerant gas leakage occurs during operation. It may
cause explosion or toxic gas generation.
• The unit is only for use in closed water system. An open water circuit may lead to excessive corrosion of water
piping and risk of incubating bacteria colonies, especially Legionella in water.
• The piping installation work must be flushed before indoor unit is connected to remove contaminants.
Contaminants may damage the Indoor Unit components.
• Both the liquid and gas refrigeration lines should be insulated or condensate water damage could occur.
• Consideration should be given for locating the outdoor equipment. Air discharging from equipment can damage
plants and vegetation.
• Follow equipment clearance requirements when installing this equipment. Adequate clearance should be given
for service access and maintenance.
• This system is multi supply appliance. All circuits must be disconnected before accessing the unit terminals.
• This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of
lightning rod and telephone. Otherwise, may cause electrical shock in case of equipment breakdown or insulation
breakdown.
• Do not install this appliance in a laundry room or other high humidity location. This condition will cause rust and
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