Westinghouse 9K-12K Technical manual

Contents
Caution Statements .......................................................................................................................................1
Composition of the Air Conditioner .............................................................................................................3
Before Operation ......................................................................................................................4
1. Special Remarks..........................................................................................................................................4
2. Setting of Automatic Swing Louver ..............................................................................................................4
3. Filter Cleaning..............................................................................................................................................5
4. Trouble Shooting..........................................................................................................................................6
Installation and Maintenance ..................................................................................................7
1. Safety Notice................................................................................................................................................7
2. Tools and Instruments for Installation ..........................................................................................................8
3. Installation of the Indoor Unit ......................................................................................................................8
4. Refrigerant Pipe.........................................................................................................................................13
5. Condensate drain piping............................................................................................................................16
6. Electrical Wiring .........................................................................................................................................16
7. Trial Run.....................................................................................................................................................17

: The symbol refers to a hazard which can result in severe personal injury or death.
: The symbol refers to a hazard or an unsafe practice which may result in severe personal injury
or death.
: The symbol refers to a hazard or an unsafe practice which may result in personal injury,
product or property damage.
: It refers to the remarks and instruction to the operation, maintenance, and service.
DANGER
WARNING
CAUTION
NOTE
Alert Symbols：
This air conditioner must be installed properly by qualified personnel in accordance with the installation
instructions provided with the unit.
Before installation, check if the voltage of the power supply at installation site is the same as the voltage
shown on the nameplate.
You must not carry on any transformation to this product, otherwise, it may cause
water leakage, breakdown, short-circuit, electric shock, fire, and so on.
Piping, welding and other such works should be carried out far away from the
flammable explosive material vessels, including the air conditioner refrigerant, to
guarantee the security of the site.
To protect the air conditioner from heavy corrosion, avoid installing the outdoor unit
where sea water can splash directly onto it or in sulphurous air near a spa. Do not
install the air conditioner where excessively high heat-generating objects are placed.
DANGER
WARNING
If the supply cord is damaged, it must be replaced by the factory or its service department
in case of danger.
The place where this product is installed must have the reliable electrical grounding facility
and protection. Please do not connect the grounding of this product to various kinds
of air-feeding ducts, drain piping, lightning protection facility as well as other piping lines to
avoid receiving an electric shock and damages caused by other factors.
Wiring must be done by a qualified electrician. All the wiring must comply with the local
electrical codes.
Monitor the capacity of the electric current with your electrical meter and socket before
installation.
The power wire where this product is installed is supposed to have the independent
leakage protective device and the electric current over-load protection device which are
provided for this product.
This appliance can be used by children aged from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if
they have been given supervision or instruction concerning use of the appliance in a safe
way and understand the hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without supervision.
Means a disconnect, which can provide full disconnection in all poles, must be
incorporated in the fixed wiring in accordance with the wiring rules .
Read this manual carefully before using this air conditioner. If you still have any
difficulties or problems, consult your dealer for help.
The air conditioner is designed to provide you with comfortable room conditions. Use
this unit only for its intended purpose as described in this instruction manual.
Caution Statements
1

Never use gasoline or other inflammable gas near the air conditioner, which is very
dangerous.
When the air conditioner operation is abnormal, such as burnt smell, deformation, fire,
smoke, and so on, it is forbidden to continue using the air conditioner, the main power
switch of the air conditioner must be cut off immediately and the dealer must be
contacted.
Do not turn the air conditioner on and off from the main power switch. Use the
ON/OFF operation button.
Do not stick anything into the air inlet and air outlet of both the indoor and outdoor
units. This is dangerous because the fan is rotating at a high speed.
Do not cool or heat the room too much if babies or invalids are present.
Details of type and rating of circuit breakers / ELB is detailed in outdoor instruction
manual.
The method of connection of the appliance to the electrical supply and interconnection
of separate components is detailed in below part.
The wiring diagram with a clear indication of the connections and wiring to external
control devices and supply cord is detailed in below part. The cord of the H07RN-F
type or the electrically equivalent type must be used for power connection and
interconnection between outdoor unit and indoor unit. The size of the cord is detailed
in below part.
The information of dimensions of the space necessary for correct installation of the
appliance including the minimum permissible distances to adjacent structures is
detailed in below part.
Caution Statements
2
WARNING
CAUTION
NOTE:
Storage condition: Temperature -13~140●℉ (-25~60℃)
Humidity 30%~80%

Composition of the Air Conditioner
3
Indoor unit
Note:
Wired controller Wireless remote controller
You can control the air-conditioner with the wired or wireless remote controller.
The controller is used for controlling power ON/OFF, setting mode, temperature, fan speed and other functions.
There are different types of remote controllers that can be used.
Operation instructions will be further specified in remote controller's manual.
Please read it carefully before using this appliance and keep it for future reference.
Remote controller(optional)
确定
54
6
1
7
2
3
The figures in this manual are based on the external view of a standard model. Consequently, the design may
differ for the air conditioner model you have selected.
For multi-split type, the unit will not be started when emergency switch is pressed.
1 Run indicator (Red)
It lights on during operation. It lights off during SLEEP mode.
2 Off and On switch
The filter clean indicator is reset when the switch is pressed. The unit will be started or stopped when the
switch is pressed. The unit will be operated in forced cooling mode if press the switch continuously for more
than 5s when the unit is off.
3 Timer indicator (Green)
It lights on when timer is in use. It lights off when timer completes.
4 Filter cleaning (Yellow)
It lights on when the filter should be cleaned.
5 Defrost indicator (Green)
It lights on during defrosting and it lights off when defrosting is complete.
6 Buzzer
It chimes when the signal from remote controller is received.
7 Infrared receiver
Receives signal from the remote controller.
Display Panel
6
2
1
3
45
7

Before Operation
● Supply electrical power to system for approximately 6 hours before start-up after long time shutdown.
● Do not start the system immediately after turning on the power supply. Doing so, it may cause a compressor
failure, because the compressor is not heated well.
● Make sure that the outdoor unit is not covered with snow or ice. If covered, remove it by using hot water
[approximately 122℉(50℃)].If the water temperature is more than 122℉ (50℃), it will damage the plastic parts.
● When the system is started after a long time shutdown of more than 3 months, it is recommended that the system
be checked by your service dealer.
● Turn OFF the main switch when the system is stopped for a long period of time. If the main switch is not turned
OFF, electricity is consumed because the oil heater is always energized during compressor stopping.
1.Special remarks
●3-minute protection after compressor stop
To protect compressor, the system implements a 3 minutes once operation is stopped.
● 5- minute protection
Compressor must run for at least 5 minutes once operation starts. During the 5 minutes, compressor will
not stop even after set point is reached. The system will shut off if manually turned off using the remote
controller.
●Cooling operation
The fan of the indoor unit will never stop running in cooling operation. It continues to operate even if the
compressor stops working.
●Heating operation
Heating capacity depends on external factors such as outdoor unit temperature. Heating capacity might
decrease if outdoor ambient temperature is too low.
● Anti-freezing function during cooling
When the temperature of the air from the indoor outlet is too low, the unit will run for some time under the
fan mode, to avoid frost or ice forming on the indoor heat exchanger.
●Cold air prevention
Within several minutes after the heating mode is selected, the fan of the indoor unit will not run until the heat
exchanger of the indoor unit reaches a certain temperature to prevent cold draft.
●Defrosting
When the outdoor temperature is too low, ice may form on the outdoor heat exchanger, reducing heating
performance. When this happens, the defrost cycle of the system will start. During the defrost cycle, the
indoor unit fan stops (or runs at a very low speed in some cases), to prevent cold draft.
Once the defrost cycle is complete, heating operation and the fan speed resume.
● Discharging the residual heating air
When stopping the air conditioner in normal operation, the fan motor will run with low speed for a while to
blow out the residual hot air.
● Auto restart from power outage
When the power supply is recovered after power outage, all presets still be in effect and the system will
run according to the previous settings.
2. Setting of Automatic Swing Louver
For more details, please refer to the Manual of Remote Controller.
Do not adjust the air louver by hand, to avoid damage to the louver mechanism.
Before Operation
4
CAUTION

5
Before Operation
3. Filter Cleaning
Do not operate the system without air filter to protect the indoor unit heat exchanger against being
clogged.
Turn off the main power switch before changing or cleaning filter. (The previous operation mode may
appear.)
3.1 Setting the Cleaning Period of Filter
Step 1
Enter choose and set mode.
It is time to clean the filter, when the filter icon turns on.
Step 2
Cancel the setting
Press to return to the standard state.off and on switch
3.2 Take Out the Filter
Take out the air filter according the following steps.
Step1
Open the air inlet grille after pushing the two knobs as shown by the arrow mark.
Step2
Take out the air filter from the air inlet grille by supporting the air grille and lifting the air filter after detaching
the filter from the hinges.
3.3 Clean the Filter
Clean the air filter according to the following steps.
Step 1
Use a vacuum cleaner or rinse the air filter to remove the dirt.
Do not use hot water with temperature more than ℉ ( ). 104 40℃
Step2
Dry the air filter in the shade after shaking off moisture.
3.4 Reset of Filter indication
After cleaning the air filter, press the “Off and on switch” button. The FILTER indication will disappear and
the next filter cleaning time will be set.
CAUTION
CAUTION

4.Trouble Shooting
When condensate drain overflows from the indoor unit, stop the operation and contact a qualified,
licensed service professional.
When you smell or see smoke coming out of the unit, turn OFF the main power supply and
contact a qualified, licensed service professional.
4.1 If the issue continues
If the issue continues after checking the following, contact your contractor and inform them of the
following items.
(1) Model number and serial number
(2) Details of the issue
4.2 No Operation
Check whether the SET TEMP is set at the correct temperature.
Properly4.3 Not Cooling or Heating
Check for obstruction of air flow in outdoor or indoor units.
Check if too many heating sources are located in the room.
Check if the air filter is clogged.
Check if the doors or windows are open.
Check if the temperature condition is within the operation range.
4.4 This is Not Abnormal
Smells from indoor unit
Smell continues on indoor unit after a long period of time. Clean the air filter and panels or allow a good
ventilation.
Sound from Deforming Parts
During system starting or stopping, a sound might be heard. However, this is due to thermal deformation
of plastic parts. It is not abnormal.
Steam from Outdoor Heat Exchanger
During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in making steam.
Dew on Air Panel
When the cooling operation continues for a long period of time under high humidity conditions, dew can
form on the air panel.
Refrigerant Flow Sound
While the system is being started or stopped, sound from the refrigerant flow may be heard.
6
Before Operation
CAUTION
Mode Interfere(for multi-split) 4.5
Multi-zone outdoor units can only support a single mode at one time (cooling or heating).
mode (cooling or heating). When the mode set at one or more indoor unit is different from the mode that
outdoor unit is using mode interfere will occur.
cooling dry heating fan
cooling √ √ × √ √ --- normal
dry √ √ × √ × --- mode interfere
heating × × √ ×
fan √ √ × √
Outdoor units always use the mode of the first indoor unit that started operation. When mode interfere occurs,
the unit in interference will emit 3 beeps and turn off automatically.

Installation and Maintenance
7
1. Safety Notice
WARNING
·Do not install the equipment in a location where there is danger of exposure to flammable gas leakage.
(A high concentration of flammable gas near the unit may result in fire)
·Install condensate drain piping according to the instructions in this manual.
(Inadequate piping may cause flooding).
·Tighten the flare nut according to the specifications with a torque wrench. (Tightening the flare nut beyond
specified torque may damage the flare nut).
CAUTION
·Installation should be performed by a qualified personnel. (Improper installation may cause water leakage
and damage, shock, or fire.)
·Install the unit according to the instructions given in this manual. (Incomplete installation may cause water
leakage and damage, electrical shock, or fire).
·Be sure to use the supplied or specified installation parts. (Use of other parts may result in a poor installation,
water leakage, shock, or fire).
·Install the air conditioner on a solid structure that can support the unit weight. ( Inadequate support or
incomplete installation may cause injury).
·Electrical work should be carried out in accordance with the installation manual and national and local
codes.(Insufficient capacity or incomplete electrical work may cause electrical shock, or fire).
·Be sure to use a dedicated power circuit. (Never use a power supply shared by another appliance).
·For wiring, use a cable long enough to cover the entire distance. Do not use an extension cord.
·Use the specified types of wires for electrical connections between the indoor and outdoor units. (Tightly
connect the wires so their terminals with no external stresses).
·Poor or loose connections may cause terminal overheating or fire.
·After connecting all the wiring be sure to secure the cables so that they do not put pressure on the electrical
covers or panels. (Install covers over the wires. Incomplete cover installation may cause terminal overheating,
electrical shock, or fire).
·When installing or relocating the system, be sure to keep the refrigerant circuit free from air (Air in the
refrigerant circuit may cause an abnormal pressure rise or rupture, resulting in injury).
·If any refrigerant has leaks out during the installation work, ventilate the room.
·After all installation is completed, check to make sure that no refrigerant is leaking out. ( Refrigerant produces
a toxic gas if exposed to flames).
·When making piping connection, do not let any debris or contaminants other than the specified refrigerant
get into refrigeration cycle. (Doing so will cause reduced performance, abnormal high pressure in the
refrigeration cycle, explosion and injury).
·Make sure that the equipment is properly grounded. Do not ground the unit to a utility pipe, lightning arrester,
or telephone grounding. Incomplete grounding may cause electrical shock. (A high surge current from
lightning or other sources may cause damage to the equipment).
·An earth leakage circuit breaker may be required depending on the site condition to prevent electrical shock.
·Disconnect the power supply before wiring, piping, or checking the unit.
·When moving the units, do not tilt the unit incline more than 45 degree. Pay attention to the sharp edges of the
air conditioner to avoid any injury.
·During wired controller installation, ensure that the length of the wire between the indoor unit and remote
controller is within 131 ft. (40 m).

2. The Tools and Instruments for Installation
The Installation of the Indoor Unit 3.
Do not install the indoor unit in a flammable environment to avoid fire or an explosion.
● C heck to ensure that the overhead structure can support the weight of the equipment. Otherwise
the indoor unit may topple, and fall down causing injury.
● Do not install the indoor unit outdoors. If done, an electric hazard or electric leakage will occur.
Installation and Maintenance
8
Number
1
2
3
4
5
6
7
Tool
Standard screwdriver
Refrigerant vacuum pump
Charge hose
Pipe bender
Adjustable wrench
Pipe cutter
Cross head screwdriver
Number
8
9
10
11
12
13
14
Tool
Level
Hammer
Drill
Knife or wire stripper
Flaring kit
Inner hexagon spanner and torque wrench
Measuring Tape
3.1 Initial Check
● Install the indoor unit with a proper clearance for operation and maintenance space, as shown in
Fig.3.1.
● Provide a service access panel near the unit piping connection area on the ceiling.
● E nsure that the ceiling has sufficient strength to hang the indoor unit.
● Check that the ceiling surface is flat for the air panel installation work.
Fig. 3.1 Space around Indoor Unit
60in.
20 in. (500mm) Min.
20 in. (500mm) Min.
4 in. (100mm) Min.
4 in. (100mm) Min.
40 in. (1000mm) Min.
(1500mm)
Min.
60in.
(1500mm)
Min.
60in.
(1500mm)
Min.
60in.
(1500mm)
Min.
120in.
(3000mm)
Min.
60in.
(1500mm)
Min.
60in.
(1500mm)
Min.
60in.
(1500mm)
Min.
60in.
(1500mm)
Min.
60in.
(1500mm)
Min.
60in.
(1500mm)
DANGER
WARNING