2
3
1.1 Safety precautions
• To prevent injury to the user or other people and
property damage, the following instructions must be
followed.
• Incorrect operation due to not following instructions
may cause personal injury or damage.
• Before servicing the unit, be sure to read this service
manual fi rst.
1.2 Warning
❯
INSTALLATION
•
Do not use a defective or underrated circuit breaker. Use
this appliance on a dedicated circuit.
If these directions are not followed, you run the risk of starting
a fi re or suffering an electric shock.
•
For electrical work, contact the dealer, seller, a qualifi ed
electrician, or an authorized service centre.
Do not disassemble or repair the product as doing so will
increase the risk of fi re or electric shock.
•
Always ground the product.
Not doing so increases the risk of starting a fi re or suffering an
electric shock.
•
Install the panel and the control box cover securely.
Not doing so increases the risk of starting a fi re or suffering an
electric shock.
•
Always install a dedicated circuit and circuit breaker.
Improper wiring or installation may cause a fi re or electric
shock.
•
Use the correctly rated fuse or circuit breaker
Not doing so increases the risk of starting a fi re or suffering an
electric shock.
•
Do not modify or extend the power cable.
Improper wiring or installation may cause a fi re or electric
shock.
•
Do not install, remove, or reinstall the unit by yourself
(customer).
Improper wiring or installation may cause a fi re or electric
shock.
•
Be careful when unpacking and installing the product.
Sharp edges may cause injury. Be especially careful of the
case edges and the fi ns on the condenser and evaporator.
•
For installation, always contact the dealer or an
authorized service centre.
•
Do not install the product on a defective installation
stand.
CONTENTS
1. PRECAUTIONS
1. PRECAUTIONS
................................................................. 3
1.1 Safety precautions ...................................................... 3
1.2 Warning ..................................................................... 3
2. FUNCTIONS ..................................................................... 5
3. DIMENSIONS
................................................................... 6
3.1 Indoor Unit ................................................................. 6
3.2 Outdoor Unit ............................................................... 7
4. REFRIGERANT CYCLE DIAGRAM ..................................... 8
5. WIRING DIAGRAM ........................................................... 9
5.1 Indoor Unit ................................................................. 9
5.2 Outdoor Unit ............................................................. 11
6. INSTALLATION DETAILS ................................................ 13
6.1 Wrench torque sheet for installation ........................... 13
6.2 Connecting the cables .............................................. 13
6.3 Pipe length and the elevation ..................................... 14
6.4 Installation for the fi rst time ....................................... 15
6.5 Adding the refrigerant after running
the system for many years ........................................ 18
6.6 Re-installation while the indoor unit
need to be repaired .................................................. 19
6.7 Re-installation while the outdoor unit
need to be repaired .................................................. 21
7. OPERATION CHARACTERISTICS .................................... 23
8. ELECTRONIC FUNCTIONS .............................................. 24
8.1 Abbreviations ........................................................... 24
8.2 Display function ........................................................ 24
8.3 Main Protection ........................................................ 25
8.4 Operation Modes and Functions ................................ 25
9. TROUBLESHOOTING ........................................................ 33
9.1 Indoor Unit Error Display ............................................ 33
9.2 Diagnosis and Solutions ............................................ 33
•
Ensure the installation area does not deteriorate with
age.
If the base collapses, the air conditioner could fall with it,
causing property damage, product failure, and personal injury.
•
Do not let the air conditioner run for a long time when
the humidity is very high and a door or a window is left
open.
•
Take care to ensure that the power cable cannot be
pulled out or damaged during operation.
Faulty cabling increases the risk of fi re or electric shock.
•
Do not place anything on the power cable.
This increases the risk of fi re or electric shock.
•
Do not plug or unplug the power supply plug during
operation.
This increases the risk of fi re or electric shock.
•
Do not operate the product with wet hands.
•
Do not place a heater or other appliance near the power
cable.
This increases the risk of fi re or electric shock.
•
Do not allow water to run into electrical parts.
This may cause fi re, failure of the product, or electric shock.
•
Do not store or use fl ammable gas or combustible
products near the unit.
This increases the risk of fi re or electric shock.
•
Do not use the product in an enclosed space for a long
time.
Oxygen defi ciency may occur.
•
If you experience a fl ammable gas leak, turn off the gas
and open a window for ventilation before turning the
product on.
•
If strange sounds or smoke comes from product, turn
the breaker off or disconnect the power supply cable
immediately.
Not doing so increases the risk of fi re or electric shock.
•
Close the window and do not operate the unit in
electrical storms or severe winds. If possible, remove
the product from the window before the storm arrives.
Not doing so increases the risk of property damage, failure of
product or electric shock.
•
Do not open the inlet grill of the product during
operation. (Do not touch the electrostatic fi lter, if the
unit is so equipped.)
There is risk of physical injury, electric shock, or product failure.
•
If the unit is soaked, contact an authorized service
centre.
There is an increased risk of fi re or electric shock.
E963_Lennox Luna Inverter Service Manual 1c.indd 2-3
E963_Lennox Luna Inverter Service Manual 1c.indd 2-3
13/12/11 4:43 PM
13/12/11 4:43 PM
