17 Series Mini-Split
13. Before system start-up, attach the refrigerant piping securely. Failure to do so will introduce
noncondensables into the system when the compressor is running, causing abnormal pressure in
the refrigeration cycle which could lead to injury and damage.
14. Establish a complete ground. Do not ground the unit to a utility pipe, arrester, or telephone
ground. An incomplete ground may cause electrical shock, or fi re. A high surge current from
lightning or other sources may cause damage to the air conditioner.
15. If the power supply cable is damaged, it must be replaced by the manufacturer, its service agent
or another qualifi ed professional in order to avoid electrical risk during and after replacement.
Pre-Installation Checklist
1. Unpack and inspect each unit.
2. Check for any damage to the unit.
3. Check the model numbers to ensure a proper match.
4. Check the unit nameplate to ensure the proper electrical requirements will be met.
5. Check the installation locations to ensure the weight of the units can be supported.
6. Check the refrigerant pipe sizes and ensure they have been or will be installed according to the
requirements in this manual.
7. Check the outdoor unit nameplate for electrical power supply and wiring requirements to ensure the
proper wiring has been installed prior to connection.
8. Check the indoor unit for coil leakage. The pressure relief valve on the gas pipe should release
pressurized nitrogen which ensures the unit has not leaked during shipping.
CAUTION
1. Do not install the unit in a place where there is danger of exposure to fl ammable gas leakage. If
gas leaks and builds up around the unit, it may result in fi re.
2. After system installation is completed, make sure no refrigerant leakage is present.
3. This appliance is not intended for use by persons with a lack of experience and knowledge, unless
they have been given adequate supervision or instruction concerning use of the appliance by a
person responsible for their safety.
4. Children should be supervised to ensure that they do not play with the appliance.
NOTICE
1. Establish drain piping according to the instructions in this manual. Inadequate piping may cause
fl ooding.
2. Tighten the fl are nut according to the specifi ed method. If the fl are nut is tightened too hard, the
fl are nut may crack and cause refrigerant leakage.
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