SERVICE MANUAL
Spilt Air Conditioner unit
Ceiling & Floor Type
FSPI-180AE1 / FSOIF-180AE1
FSPI-240AE1 / FSOIF-240AE1
FI_SM_FSPI-180-240-AE1_20131010
1
Part 1
Indoor units
1. Features ..................................................................... 3
2. Dimensions ................................................................ 4
3. Service Space............................................................. 5
4. Wiring Diagrams ........................................................ 6
5. Electric Characteristics ............................................. 7
6. Sound Levels ............................................................. 7
7. Accessories ................................................................ 8
8. The Specification of Power ........................................ 8
9. Field Wiring ................................................................ 9
Features
1. Features
1.1. New design, more modern and elegant appearance.
1.2.
1.2. Convenient installation
--The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow
--It is especially useful when installation of an air conditioner in the center of the ceiling is impossible
due to a structure such as one lighting.
1.3. Two direction auto swing (vertical & horizontal) and wide angle air flow,
--Air flow directional control minimizes the air resistance and produces wilder air flow to vertical
direction.
--The range of horizontal air discharge is widened which secures wider air flow distribution to provide
more comfortable air circulation no matter where the unit is set up
1.4. Three level fan speed, more humanism design, meets different air-supply requirement.
1.5. New foam drain pan with plastic-spraying inner surface
1.6. Easy operation.
1.7. Remote control and optional wired control method.
3
Dimensions
2. Dimensions
Capacity (Btu/h) A B C D E
18K, 24K 1068 675 235 983 220
Service Space
3. Service Space
5
Wiring Diagrams
4. Wiring Diagrams
18k , 24k indoor
Electric Characteristics
5. Electric Characteristics
Model
18k 50 220-240 198 254 15
24k 50 220-240 198 254 15
Note:
MFA: Max. Fuse Amps. (A)
6. Sound Levels
Air outlet side
1m
Microphone
Indoor Units Power Supply
Hz Voltage Min. Max. MFA
Microphone
1m
1m
1.5m
Ceiling Floor
Model
18k 56 40 36 33
24k 62 50 48 43
Sound Power
dB (A)
H M L
Noise level dB(A)
7
Accessories
7. Accessories
1. Remote controller
Remote controller & Its
2. Remote controller holder
holder
3. Mounting screw (ST2.9×10-C-H)
4. Alkaline dry batteries (AM4)
5. Owner's manual
Others
6. Installation manual
7. Remote controller manual
8. The Specification of Power
Model 18k 24k
INDOOR UNIT POWER
OUTDOOR UNIT POWER
Indoor/Outdoor Connecting Wiring
(Weak Electric Signal) (mm2)
Indoor/Outdoor Connecting Wiring
(Strong Electric Signal) (mm2)
Phase 1-phase
Frequency and Voltage 220-240V, 50Hz
POWER WIRING (mm2) 3×1.5
CIRCUIT BREAKER (A) C10
Phase 1-phase
Frequency and Voltage 220-240V, 50Hz
POWER WIRING (mm2) 3×2.5
CIRCUIT BREAKER (A) C16
shielded 3×0.5
1
1
2
2
1
1
1
Outdoor Units
9. Field Wiring
Outdoor Units 9
Outdoor Units
Part 2
Outdoor Units
1. Dimensions .................................................................................................... 11
2. Service Space ................................................................................................ 12
3. Piping Diagrams ............................................................................................ 13
4. Wiring Diagrams ........................................................................................... 14
5. Electric Characteristics ................................................................................ 15
6. Operation Limits ........................................................................................... 16
7. Sound Levels ................................................................................................. 17
10 Outdoor Units
Dimensions
1. Dimensions
Model
18k 842 560 335 360 312 324 695
24k 895 590 333 355 302 313 862
A B C D E F H
Unit：mm
Outdoor Units 11
Service Space
2. Service Space
(Wall or obstacle)
More than 30cm
Air inlet
Air inlet
Air outlet
More than 30cm
More than 60cm
More than 200cm
More than 60cm
Maintain channel
12 Outdoor Units
Piping Diagrams
3. Piping Diagrams
18k, 24k
INDOOR OUTDOOR
HEAT
EXCHANGE
(EVAPORATOR)
T2 Evaporator
temp. sensor
T1 Room temp.
sensor
LIQUID SIDE
2-WAY VALVE
GAS SIDE
3-WAY VALVE
CAPILIARY TUBE
Accumulator
Low pressure
switch
Compressor
Electronic
expansion valve
T4 Ambient
temp. sensor
4-WAY VALVE
High pressure switch
T5 Discharge
temp. sensor
T3 Condenser
temp. sensor
HEAT
EXCHANGE
(CONDENSER)
COOLING
HEATING
Outdoor Units 13
Wiring Diagrams
4. Wiring Diagrams
18k,24k
14 Outdoor Units
Electric
5. Electric Characteristics
Characteristics
Model
18k 50 220-240V 198V 254V
24k 50 220-240V 198V 254V
Hz Voltage Min. Max.
Outdoor Unit
Outdoor Units 15
Operation Limits
6. Operation Limits
Temperature
Mode
Room temperature ≥17℃ ≤30℃
Outdoor temperature
Cooling operation Heating operation
-15℃～50℃ -15℃～24℃
CAUTION:
1. If the air conditioner is used beyond the above conditions, certain safety protection features may come
into operation and cause the unit to operate abnormally.
2. The room relative humidity should be less than 80%. If the air conditioner operates beyond this figure, the
surface of the air conditioner may attract condensation. Please set the vertical air flow louver to its maximum
angle (vertically to the floor), and set HIGH fan mode.
3. The optimum performance will be achieved during this operating temperature zone.
16 Outdoor Units
Sound Levels
7. Sound Levels
Outdoor Unit
Microphone
H
1.0m
Note: H= 0.5 × height of outdoor unit
Model Sound Power dB(A)
18k 65
24k 69
Outdoor Units 17
Installation
Part 3
Installation
1. Installation Procedure ...................................................... 19
2. Location selection ............................................................ 20
3. Indoor unit installation ..................................................... 21
4. Outdoor unit installation (Side Discharge Unit) ............ 24
5. Refrigerant pipe installation ............................................ 25
6. Drainage pipe installation................................................ 26
7. Vacuum Drying and Leakage Checking ......................... 31
8. Additional refrigerant charge .......................................... 32
9. Engineering of insulation ................................................ 33
10. Engineering of electrical wiring ...................................... 34
11. Test operation ................................................................... 35
18 Installation
Installation Procedure
1. Installation Procedure
Indoor unit installation
location selection
Indoor unit installation Outdoor unit installation
Refrigerant pipe
installation and insulation
Drainage pipe installation
and insulation
Outdoor unit installation
location selection
Refrigerant pipe
installation and insulation
Drainage pipe installation
and insulation
Vacuum drying and leakage checking
Additional refrigerant charge
Insulation the joint part of refrigerant pipe
Wiring connection and electric safety checking
Test operation
Installation 19
Location selection
2. Location selection
2.1 Indoor unit location selection
The place shall easily support the indoor unit’s weight.
The place can ensure the indoor unit installation and inspection.
The place can ensure the indoor unit horizontally installed.
The place shall allow easy water drainage.
The place shall easily connect with the outdoor unit.
The place where air circulation in the room should be good.
There should not be any heat source or steam near the unit.
There should not be any oil gas near the unit
There should not be any corrosive gas near the unit
There should not be any salty air neat the unit
There should not be strong electromagnetic wave near the unit
There should not be inflammable materials or gas near the unit
There should not be strong voltage vibration.
2.2 Outdoor unit location selection
The place shall easily support the outdoor unit’s weight.
Locate the outdoor unit as close to indoor unit as possible
The piping length and height drop can not exceed the allowable value.
The place where the noise, vibration and outlet air do not disturb the neighbors.
There is enough room for installation and maintenance.
The air outlet and the air inlet are not impeded, and not face the strong wind.
It is easy to install the connecting pipes and cables.
There is no danger of fire due to leakage of inflammable gas.
It should be a dry and well ventilation place
The support should be flat and horizontal
Do not install the outdoor unit in a dirty or severely polluted place, so as to avoid blockage of the heat
exchanger in the outdoor unit.
If is built over the unit to prevent direct sunlight, rain exposure, direct strong wend, snow and other scraps
accumulation, make sure that heat radiation from the condenser is not restricted.
More than 30cm
More than 60cm
More than 30cm
F
e
n
c
e
o
b
o
s
r
t
a
c
l
e
s
More than 60cm
More than 70cm
(Service space)
20 Installation
Ceiling & floor indoor unit installation
3. Ceiling & floor indoor unit installation
Service space for indoor unit
3.1
Bolt pitch
3.2
① Ceiling installation
Capacity (Btu/h) D E
18K, 24K 983 220
② Wall-mounted installation
Installation 21
Ceiling & floor indoor unit installation
Install the pendant bolt
3.3
① Ceiling installation
Select the position of installation hooks according to the hook holes positions showed in upper picture.
Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the
expansible hooks (fittings).
② Wall-mounted installation
Install the tapping screws onto the wall.(Refer to picture below)
Install the main body
3.4
① Ceiling installation (The only installation method for the unit with drain pump)
Remove the side board and the grille.
Locate the hanging arm on the hanging screw bolt. Prepare the mounting bolts on the unit.
22 Installation
Ceiling & floor indoor unit installation
Put the side panels and grilles back.
② Wall-mounted installation
Hang the indoor unit by insert the tapping screws into the hanging arms on the main unit. (The bottom of
body can touch with floor or suspended, but the body must install vertically.)
Installation 23
Outdoor unit installation (Side Discharge Unit)
4. Outdoor unit installation (Side Discharge Unit)
4.1 Service space for outdoor unit
(Wall or obstacle)
More than 30cm
Air inlet
4.2 Bolt pitch
Air inlet
Air outlet
More than 30cm
More than 60cm
More than 200cm
More than 60cm
Maintain channel
Model B C D
18k 560 335 360
24k 590 333 355
4.3 Install the Unit
Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling.
Never hold the inlet of the outdoor unit to prevent it from deforming.
Do not touch the fan with hands or other objects.
Do not lean it more than 45, and do not lay it sidelong.
Make concrete foundation according to the specifications of the outdoor units.
Fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong wind.
24 Installation
Refrigerant pipe installation
5. Refrigerant pipe installation
5.1 Maximum pipe length and height drop
Considering the allowable pipe length and height drop to decide the installation position. Make sure the
distance and height drop between indoor and outdoor unit not exceeded the date in the following table.
Model Max. Length Max. Elevation
18,000Btu/h 30m 20m
24,000Btu/h 50m 25m
5.2 The procedure of connecting pipes
5.2.1 Choose the pipe size according to the specification table.
5.2.2 Confirm the cross way of the pipes.
5.2.3 Measure the necessary pipe length.
5.2.4 Cut the selected pipe with pipe cutter
Make the section flat and smooth.
o
90
Lean
Crude
5.2.5 Insulate the copper pipe
Before test operation, the joint parts should not be heat insulated.
5.2.6 Flare the pipe
Insert a flare nut into the pipe before flaring the pipe
According to the following table to flare the pipe
Pipe diameter
1/4" (6.35) 8.3 8.7
3/8" (9.52) 12.0 12.4
Flare dimension A (mm)
Min Max
Burr
Flare shape
+
°
90
A
4
-
4
5
¡
ã
1/2" (12.7) 15.4 15.8
5/8" (15.9) 18.6 19.1
3/4" (19) 22.9 23.3
R0.4~0.8
After flared the pipe, the opening part must be seal by end cover or adhesive tape to avoid duct or
Installation 25
Drainage pipe installation
exogenous impurity come into the pipe.
5.2.7 Drill holes if the pipes need to pass the wall.
5.2.8 According to the field condition to bend the pipes so that it can pass the wall smoothly.
5.2.9 Bind and wrap the wire together with the insulated pipe if necessary.
5.2.10 Set the wall conduit
5.2.11 Set the supporter for the pipe.
5.2.12 Locate the pipe and fix it by supporter
For horizontal refrigerant pipe, the distance between supporters should not be exceed 1m.
For vertical refrigerant pipe, the distance between supporters should not be exceed 1.5m.
5.2.13 Connect the pipe to indoor unit and outdoor unit by using two spanners.
Be sure to use two spanners and proper torque to fasten the nut, too large torque will damage the
bellmouthing, and too small torque may cause leakage. Refer the following table for different pipe
connection.
Torque Sketch map
Pipe Diameter
(kgf.cm) (N.cm)
1/4" (6.35) 144~176 1420~1720
3/8" (9.52) 333~407 3270~3990
1/2" (12.7) 504~616 4950~6030
5/8" (15.9) 630~770 6180~7540
3/4" (19) 990~1210 9270~11860
6. Drainage pipe installation
Install the drainage pipe as shown below and take measures against condensation. Improperly installation
could lead to leakage and eventually wet furniture and belongings.
6.1 Installation principle
Ensure at least 1/100 slope of the drainage pipe
Adopt suitable pipe diameter
Adopt nearby condensate water discharge
6.2 Key points of drainage water pipe installation
6.2.1 Considering the pipeline route and elevation
Before installing condensate water pipeline, determine its route and elevation to avoid intersection with
other pipelines and ensure slope is straight.
6.2.2 Drainage pipe selection
The drainage pipe diameter shall not small than the drain hose of indoor unit
According to the water flowrate and drainage pipe slope to choose the suitable pipe, the water flowrate
is decided by the capacity of indoor unit.
Relationship between water flowrate and capacity of indoor unit
Capacity (x1000Btu) Water flowrate (l/h)
12 2.4
18 4
24 6
30 7
36 8
42 10
48 12
60 14
26 Installation
Drainage pipe installation
According to the above table to calculate the total water flowrate for the confluence pipe selection.
For horizontal drainage pipe (The following table is for reference)
PVC pipe
PVC25 20 39 27
PVC32 25 70 50
PVC40 31 125 88
PVC63 51 473 334
Reference value of inner
diameter of pipe (mm)
Allowable maximum water flowrate (l/h)
Slope 1/50 Slope 1/100
Remark
For branch pipe
Could be used for confluence pipe PVC50 40 247 175
Attention: Adopt PVC40 or bigger pipe to be the main pipe.
For Vertical drainage pipe (The following table is for reference)
PVC pipe
PVC25 20 220
PVC32 25 410
PVC40 31 730
PVC50 40 1440
PVC63 51 2760
PVC75 67 5710
PVC90 77 8280
Reference value of inner
diameter of pipe (mm)
Allowable maximum water flowrate (l/h) Remark
For branch pipe
Could be used for confluence pipe
Attention: Adopt PVC40 or bigger pipe to be the main pipe.
Installation 27
Drainage pipe installation
6.2.3 Individual design of drainage pipe system
The drainage pipe of air conditioner shall be installed separately with other sewage pipe, rainwater pipe
and drainage pipe in building.
The drainage pipe of the indoor unit with water pump should be apart from the one without water pump.
6.2.4 Supporter gap of drainage pipe
In general, the supporter gap of the drainage pipe horizontal pipe and vertical pipe is respectively
1m~1.5m and 1.5m~2.0m.
Each vertical pipe shall be equipped with not less than two hangers.
Overlarge hanger gap for horizontal pipe shall create bending, thus leading to air block.
Too long distance
Gas bag
6.2.5 The horizontal pipe layout should avoid converse flow or bad flow
Drainage pipe
Drainage pipe
Drainage pipe
Drain tee
Water flow
Drain tee
Water flow
Water flow
Water flow
Drain tee
Water flow
Water flow
Water flow
Water flow
Water flow
Branch pipe
Keep a certain degree
Water flow
Gas
Main pipe
Gas
Water flow
Main pipe
Branch pipe
The correct installation will not cause converse water flow and the slope of the branch pipes can be
adjusted freely
The false installation will cause converse water flow and the slope of the branch pipe can not be
adjusted.
6.2.6 Water storage pipe setting
If the indoor unit has high extra static pressure and without water pump to elevate the condensate water,
such as high extra static pressure duct unit , the water storage pipe should be set to avoid converse flow
or blow water phenomena.
28 Installation
Drainage pipe installation
Indoor unit
More than 50mm
Plug
More than 25mm
Water storage pipe
6.2.7 Lifting pipe setting of indoor unit with water pump
The length of lifting pipe should not exceed the pump head of indoor unit water pump.
Pump head of big four way cassette: 750mm
Pump head of compact four way cassette: 500mm
The drainage pipe should be set down inclined after the lifting pipe immediately to avoid wrong
operation of water level switch.
Refer the following picture for installation reference.
Hanger
A
Down incline pipe
A:Length of vertical pipe≤150mm
B
B: Lift height≤the pump head of water pump
Flexible pipe 300mm
6.2.8 Blowhole setting
For the concentrated drainage pipe system, there should design a blowhole at the highest point of main
pipe to ensure the condensate water discharge smoothly.
The air outlet shall face down to prevent dirt entering pipe.
Each indoor unit of the system should be installed it.
The installation should be considering the convenience for future cleaning.
Blowhole
Indoor unit
Plug
Indoor unit
Plug
6.2.9 The end of drainage pipe shall not contact with ground directly.
Installation 29
Drainage pipe installation
6.3 Drainage test
6.3.1 Water leakage test
After finishing the construction of drainage pipe system, fill the pipe with water and keep it for 24 hours to
check whether there is leakage at joint section.
6.3.2 Water discharge test
1. Natural drainage mode(the indoor unit with outdoor drainage pump)
Infuse above 600ml water through water test hole slowly into the water collector, observe whether the
water can discharge through the transparent hard pipe at drainage outlet.
2. Pump drainage mode
2.1 Disconnect the plug of water level switch, remove the cover of water test hole and slowly infuse about
2000ml water through the water test hole, be sure that the water will not touch the motor of drainage
pump.
2.2 Power on and let the air conditioner operate for cooling. Check operation status of drainage pump, and
then connect the plug of water level switch, check the operation sound of water pump and observe
whether the water can discharge through the transparent hard pipe at drainage outlet. (In light of the
length of drainage pipe, water shall be discharged about 1 minute delayed)
2.3 Stop the operation of air conditioner, power off the power supply and put the cover of water test hole
back to the original place.
a. After stopped the air conditioner 3 minutes, check whether there is anything abnormal. If drainage pipes
have not been distributed properly, over back-flow water shall cause the flashing of alarm indicator at
remote-controlled receiving board and even water shall run over the water collector.
b. Continuously infusing water until water level alarmed, check whether the drainage pump could
discharge water at once. If water level does not decline under warning water level 3 minutes later, it
shall cause shutdown of unit. When this situation happens, the normal startup only can be recovered by
turning down power supply and eliminating accumulated water.
Note: Drain plug at the main water-containing plate is used for eliminating accumulated water in
water-containing plate when maintaining air conditioner fault. During normal operation, the plug shall be
filled in to prevent leakage.
6.4 Insulation work of drainage pipe
Refer the introduction to the insulation engineering parts.
30 Installation
Vacuum Drying and Leakage Checking
7. Vacuum Drying and Leakage Checking
7.1 Purpose of vacuum drying
Eliminating moisture in system to prevent the phenomena of ice-blockage and copper oxidation.
Ice-blockage shall cause abnormal operation of system, while copper oxide shall damage compressor.
Eliminating the non-condensable gas (air) in system to prevent the components oxidizing, pressure
fluctuation and bad heat exchange during the operation of system.
7.2 Selection of vacuum pump
The ultimate vacuum degree of vacuum pump shall be -756mmHg or above.
Precision of vacuum pump shall reach 0.02mmHg or above.
7.3 Operation procedure for vacuum drying
Due to different construction environment, two kinds of vacuum drying ways could be chosen, namely
ordinary vacuum drying and special vacuum drying.
7.3.1 Ordinary vacuum drying
1. When conduct first vacuum drying, connect pressure gauge to the infusing mouth of gas pipe and liquid
pipe, and keep vacuum pump running for 1hour (vacuum degree of vacuum pump shall be reached
-755mmHg).
2 If the vacuum degree of vacuum pump could not reach -755mmHg after 1 hour of drying, it indicates
that there is moisture or leakage in pipeline system and need to go on with drying for half an hour.
3 If the vacuum degree of vacuum pump still could not reach -755mmHg after 1.5 hours of drying, check
whether there is leakage source.
4 Leakage test: After the vacuum degree reaches -755mmHg, stop vacuum drying and keep the pressure
for 1 hour. If the indicator of vacuum gauge does not go up, it is qualified. If going up, it indicates that
there is moisture or leak source.
7.3.2 Special vacuum drying
The special vacuum drying method shall be adopted when:
1. Finding moisture during flushing refrigerant pipe.
2. Conducting construction on rainy day, because rain water might penetrated into pipeline.
3. Construction period is long, and rain water might penetrated into pipeline.
4. Rain water might penetrate into pipeline during construction.
Procedures of special vacuum drying are as follows:
1. Vacuum drying for 1 hour.
2. Vacuum damage, filling nitrogen to reach 0.5Kgf/cm2 .
Because nitrogen is dry gas, vacuum damage could achieve the effect of vacuum drying, but this
method could not achieve drying thoroughly when there is too much moisture. Therefore, special
attention shall be drawn to prevent the entering of water and the formation of condensate water.
3. Vacuum drying again for half an hour.
If the pressure reached -755mmHg, start to pressure leakage test. If it can not reached the value,
repeat vacuum damage and vacuum drying again for 1 hour.
4 Leakage test: After the vacuum degree reaches -755mmHg, stop vacuum drying and keep the pressure
for 1 hour. If the indicator of vacuum gauge does not go up, it is qualified. If going up, it indicates that
there is moisture or leak source.
Installation 31
Additional refrigerant charge
8. Additional refrigerant charge
After the vacuum drying process is carried out, the additional refrigerant charge process need to be
performed.
The outdoor unit is factory charged with refrigerant. The additional refrigerant charge volume is decided
by the diameter and length of the liquid pipe between indoor and outdoor unit. Refer the following
formula to calculate the charge volume.
Diameter of liquid pipe (mm) Φ6.35 Φ9.52 Φ12.7
Formula V=11g/m×(L-5) V=30g/m×(L-5) V=60g/m×(L-5)
V: Additional refrigerant charge volume (g).
L : The length of the liquid pipe (m).
Note:
Refrigerant may only be charged after performed the vacuum drying process.
Always use gloves and glasses to protect your hands and eyes during the charge work.
Use electronic scale or fluid infusion apparatus to weight refrigerant to be recharged. Be sure to avoid
extra refrigerant charged, it may cause liquid hammer of the compressor or protections.
Use supplementing flexible pipe to connect refrigerant cylinder, pressure gauge and outdoor unit. And
The refrigerant should be charged in liquid state. Before recharging, The air in the flexible pipe and
manifold gauge should be exhausted.
After finished refrigerant recharge process, check whether there is refrigerant leakage at the connection
joint part.(Using gas leakage detector or soap water to detect).
32 Installation
Engineering of insulation
9. Engineering of insulation
9.1 Insulation of refrigerant pipe
9.1.1 Operational procedure of refrigerant pipe insulation
Cut the suitable pipe → insulation (except joint section) → flare the pipe → piping layout and connection→
vacuum drying → insulate the joint parts
9.1.2 Purpose of refrigerant pipe insulation
During operation, temperature of gas pipe and liquid pipe shall be over-heating or over-cooling
extremely. Therefore, it is necessary to carry out insulation; otherwise it shall debase the performance
of unit and burn compressor.
Gas pipe temperature is very low during cooling. If insulation is not enough, it shall form dew and cause
leakage.
Temperature of gas pipe is very high (generally 50-100℃) during heating. Insulation work must be
carried out to prevent hurt by carelessness touching.
9.1.3 Insulation material selection for refrigerant pipe
The burning performance should over 120℃
According to the local law to choose insulation materials
The thickness of insulation layer shall be above 10mm.If in hot or wet environment place, the layer of
insulation should be thicker accordingly.
9.1.4 Installation highlights of insulation construction
Gas pipe and liquid pipe shall be insulated separately, if the gas pipe and liquid pipe were insulated
together; it will decrease the performance of air conditioner.
Liquid pipe Insulation meterial
Gas pipe
The insulation material at the joint pipe shall be 5~10cm longer than the gap of the insulation material.
The insulation material at the joint pipe shall be inserted into the gap of the insulation material.
The insulation material at the joint pipe shall be banded to the gap pipe and liquid pipe tightly.
The linking part should be use glue to paste together
Be sure not bind the insulation material over-tight, it may extrude out the air in the material to cause bad
insulation and cause easy aging of the material.
9.2 Insulation of drainage pipe
9.2.1 Operational procedure of refrigerant pipe insulation
Select the suitable pipe → insulation (except joint section) → piping layout and connection→ drainage test→
insulate the joint parts
9.2.2 Purpose of drainage pipe insulation
The temperature of condensate drainage water is very low. If insulation is not enough, it shall form dew and
cause leakage to damage the house decoration.
Installation 33
Engineering of electrical wiring
9.2.3 Insulation material selection for drainage pipe
The insulation material should be flame retardant material, the flame retardancy of the material should
be selected according to the local law.
Thickness of insulation layer is usually above 10mm.
Use specific glue to paste the seam of insulation material, and then bind with adhesive tape. The width
of tape shall not be less than 5cm. Make sure it is firm and avoid dew.
9.2.4 Installation and highlights of insulation construction
The single pipe should be insulated before connecting to another pipe, the joint part should be insulated
after the drainage test.
There should be no insulation gap between the insulation material.
10. Engineering of electrical wiring
10.1 Highlights of electrical wiring installation
All field wiring construction should be finished by qualified electrician.
Air conditioning equipment should be grounded according to the local electrical regulations.
Current leakage protection switch should be installed.
Do not connect the power wire to the terminal of signal wire.
When power wire is parallel with signal wire, put wires to their own wire tube and remain at least 300mm
gap.
According to table in indoor part named “the specification of the power” to choose the wiring, make sure
the selected wiring not small than the date showing in the table.
Select different colors for different wire according to relevant regulations.
Do not use metal wire tube at the place with acid or alkali corrosion, adopt plastic wire tube to replace it.
There must be not wire connect joint in the wire tube If joint is a must, set a connection box at the place.
The wiring with different voltage should not be in one wire tube.
Ensure that the color of the wires of outdoor and the terminal No. are same as those of indoor unit
respectively.
34 Installation
Test operation
11. Test operation
11.1 The test operation must be carried out after the entire installation has been
completed.
11.2 Please confirm the following points before the test operation.
The indoor unit and outdoor unit are installed properly.
Tubing and wiring are correctly completed.
The refrigerant pipe system is leakage-checked.
The drainage is unimpeded.
The ground wiring is connected correctly.
The length of the tubing and the added stow capacity of the refrigerant have been recorded.
The power voltage fits the rated voltage of the air conditioner.
There is no obstacle at the outlet and inlet of the outdoor and indoor units.
The gas-side and liquid-side stop values are both opened.
The air conditioner is pre-heated by turning on the power.
11.3 Test operation
Set the air conditioner under the mode of "COOLING" by remote controller, and check the following points.
Indoor unit
Whether the switch on the remote controller works well.
Whether the buttons on the remote controller works well.
Whether the air flow louver moves normally.
Whether the room temperature is adjusted well.
Whether the indicator lights normally.
Whether the temporary buttons works well.
Whether the drainage is normal.
Whether there is vibration or abnormal noise during operation.
Outdoor unit
Whether there is vibration or abnormal noise during operation.
Whether the generated wind, noise, or condensed of by the air conditioner have influenced your
neighborhood.
Whether any of the refrigerant is leaked.
Installation 35
Electrical Control System
Part 4
Electrical Control System
1. Electrical Control Function ..................................... 37
2. Troubleshooting ...................................................... 46
36 Electrical Control System
Electrical Control Function
1. Electrical Control Function
1.1 Definition
T1: Indoor room temperature
T2: Coil temperature of indoor heat exchanger middle.
T2B: Coil temperature of indoor heat exchanger outlet.
T3: Coil temperature of condenser
T4: Outdoor ambient temperature
T5: Compressor discharge temperature
1.2 Main Protection
1.2.1 Time delay at restart for compressor.
1.2.2 Temperature protection of compressor top
The unit will stop working when the compressor top temp. protector cut off, and will restart after the
compressor top temp. protector restart.
1.2.3 Temperature protection of compressor discharge
When the compressor discharge temp. is getting higher, the running frequency will be limited as below rules:
----If 102℃<T5<115℃, decrease the frequency to the lower level every 2 minutes till to F1.
---If T5>115℃ for 10 seconds, the compressor will stop and restart till T5<90℃.
1.2.4 Sensor protection at open circuit and breaking disconnection.
1.2.5 Indoor fan delayed open function
When the unit starts up, the louver will be active immediately and the indoor fan will open 10s later.
If the unit runs in heating mode, the indoor fan will be also controlled by anti-cold wind function.
Electrical Control System 37
Electrical Control Function
1.3 Operation Modes and Functions
1.3.1 Fan mode
(1) Outdoor fan and compressor stop.
(2) Temperature setting function is disabled, and no setting temperature is displayed.
(3) Indoor fan can be set to high/(med)/low/auto;
(4) The louver operates same as in cooling mode.
5.0
4.0
3.0
2.0
High
Medium
Low
Ts=24
1.3.2 Cooling Mode
1.3.2.1 Outdoor PMW open angle control
The unit is working in cooling mode with the EXV open 300P for 3 minutes, then adjusting PMW open angle
according to the temperature of compressor discharge every 2 minutes.
1.3.2.2 Outdoor fan running rules
T4
28℃
26℃
25℃
23℃
22℃
A DC_FAN_HI_SPD_ADD
B DC_FAN_MID_SPD_ADD
C DC_FAN_MIN_SPD_ADD
20℃
19℃
17℃
D DC_FAN_SLOW_SPD_ADD
E DC_FAN_SSLOW_SPD_ADD
38 Electrical Control System
Electrical Control Function
1.3.2.3 Indoor fan running rules
5.0
4.0
3.0
2.0
High
Medium
Low
1.3.2.4 Evaporator low temperature T2 protection.
When T2<2 and lasts for 3 minutes, the indoor has no capacity demand and resume till T2≥7.
1.3.2.5 Condenser high temperature T3 protection
When T3≥65℃ for 3 seconds, the compressor will shut off. When T3＜52,the compressor will restart.
1.3.3 Heating Mode
1.3.2.1 Outdoor PMW open angle control
The unit is working in heating mode with the EXV open 300P(For 12K,it is 480P) for 3 minutes, then
adjusting PMW open angle according to the temperature of compressor discharge every 2 minutes.
1.3.3.2 Outdoor fan running rules:
T4
21℃
19℃
18℃
16℃
15℃
13℃
12℃
E DC_FAN_SSLOW_SPD_ADD
D DC_FAN_SLOW_SPD_ADD
C DC_FAN_MIN_SPD_ADD
B DC_FAN_MID_SPD_ADD
10℃
A DC_FAN_HI_SPD_ADD
Electrical Control System 39
Electrical Control Function
1.3.3.3 Indoor fan running rules:
When the compressor is on, the indoor fan can be set to high/(med)/low/auto. And the anti-cold wind
function has the priority.
Auto fan action:
¦ ¤
T1-Ts-
Anti-cold Wind Function:
T
Low
-2
-3
Medium
-4
-5
High
1.3.3.4 Defrosting mode：
Condition of defrosting:
T4
T2
TE5
TE2
TE1
Setting fan speed
Low
Breeze
Fan off
TE6
TE3
TE4
Time1
3℃
Time2
Time conditions:
time1
Time conditions(Meet the following conditions)
1.Running in heating mode
2. T4≥3℃
3. Compressor is on
40 Electrical Control System
Electrical Control Function
4. T3≤TempEnterDefrost_ADD ℃
Cleared conditions (Meet any one of the following conditions)
1. Compressor is off.
2. T3＞TempEnterDefrost_ADD ℃
Time2
Time conditions(Meet the following conditions)
1.Running in heating mode
2. T4<3℃
3. Compressor is on
4. T3≤TempEnterDefrost_ADD ℃
Cleared conditions (Meet any one of the following conditions)
1. Compressor is off and T3＞TempEnterDefrost_ADD +2℃ last for 20 minutes
2. Running in cooling mode.
3. Compressor is off for 1 hour.
Condition of entry defrosting:
time1+ time2≥40 minutes, When defrosting is end,time1 and time2 are cleared.
Condition of ending defrosting:
If any one of following items is satisfied, defrosting will stop and the machine will turn to normal heating
mode.
① The defrosting time achieves 10min;
② T3 ≥15℃;
③ T3 ≥7℃ for 60seconds.
Defrosting action：
4-Way valve
no longer than 10min
Compress or
TimeA
10S
Indoor fan
Outdoor fan
10S 30S
PMV running
PMV
480P
8 mins with 300P
Electrical Control System 41
Electrical Control Function
1.3.3.5 High evaporator coil temp.T2 protection:
T2>60℃, the compressor will stop and restart when T2<54℃.
1.3.4 Auto-mode
This mode can be chosen with remote controller and the setting temperature can be changed between
17~30℃.
In auto mode, the machine will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts).
ΔT=T1-Ts Running mode
ΔT≥2℃
-1≤ΔT<2℃
ΔT<-1℃
Cooling
Fan-only
Heating
Indoor fan will run at auto fan of the relevant mode.
The louver operates same as in relevant mode.
If the machine switches mode between heating and cooling, the compressor will keep stopping for 15
minutes and then choose mode according to T1-Ts.
If the setting temperature is modified, the machine will choose running function again.
1.3.5 Drying mode
Drying mode works the same as cooling mode in low speed.
All protections are active and the same as that in cooling mode.
1.3.6 Timer function
1.3.6.1 Timing range is 24 hours.
1.3.6.2 Timer on. The machine will turn on automatically when reaching the setting time.
1.3.6.3 Timer off. The machine will turn off automatically when reaching the setting time.
1.3.6.4 Timer on/off. The machine will turn on automatically when reaching the setting “on” time, and then
turn off automatically when reaching the setting “off” time.
1.3.6.5 Timer off/on. The machine will turn off automatically when reaching the setting “off” time, and then
turn on automatically when reaching the setting “on” time.
1.3.6.6 The timer function will not change the AC current operation mode. Suppose AC is off now, it will not
start up firstly after setting the “timer off” function. And when reaching the setting time, the timer LED will be
off and the AC running mode has not been changed.
1.3.6.7 The setting time is relative time.
1.3.7 Economy function
1.3.7.1 The sleep function is available in cooling, heating or auto mode.
1.3.7.2. Operation process in sleep mode is as follow:
42 Electrical Control System
Electrical Control Function
When cooling, the setting temperature rises 1℃ (be lower than 30℃) every one hour, 2 hours later the
setting temperature stops rising and the indoor fan is fixed at low speed.
When heating, the setting temperature decreases 1℃ (be higher than 17℃) every one hour, 2 hours later
the setting temperature stops rising and indoor fan is fixed at low speed. (Anti-cold wind function has the
priority).
1.3.7.3 Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode but doesn’t turns off,
but for console, the unit will turn off.
1.3.7.4 Timer setting is available
1.3.8 Auto-Restart function
The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module. In
case of a sudden power failure, the module memorizes the setting conditions before the power failure. The
unit will resume the previous operation setting (not including Swing function) automatically after 3 minutes
when power returns.
1.3.9 Drain pump control (only optional )
1.3.10 Follow me (with wireless remote)
1) If the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remote
controller, the buzzer will emit a sound and this indicates the follow me function is initiated. But when the
indoor PCB receives signal which sent from remote controller every 3 minutes, the buzzer will not
respond. When the unit is running with follow-me function, the PCB will control the unit according to the
temperature from follow-me signal, and the temperature collection function of room temperature sensor
will be shielded.
2) When the follow-me function is available, the PCB will not respond according to the setting temperature
from follow-me signal every 3 minutes.
3) The PCB will take action to the mode change information from remote controller signal, and the
follow-me function will be turned off. (if the wired remote controller does not initiate follow me function).
4) When the unit is running with follow-me function, if the PCB doesn’t receive any signal from remote
controller for 7 minutes or pressing FOLLOW ME button again, the follow-me function will be turned off
automatically, and the temperature collection function of room temperature sensor will be available, the
PCB will control the unit according to the room temperature detected from its own room temperature
sensor and setting temperature.
5) When the indoor PCB receives the follow-me signal from wired remote controller, the control is the
same as that from wireless remote controller, but buzzer will not respond. When the PCB receives
Electrical Control System 43
Electrical Control Function
turning-off follow-me signal from wired remote controller, the unit will quit follow-me function at once.
The follow-me function controlled by wired remote controller prevails that by wireless remote controller.
1.3.11 Point Check Function
There is a check switch in outdoor PCB.
Press the switch SW1 to check the states of unit when the unit is running.
Press the switch N times it will display the content corresponding to No. N. After getting into the check
function, it will display No. N with 1.5s, meanwhile the low bit decimal of digit display flashing, indicated to
get into the check function display. After 1.5s, it will display the content corresponding to No. N.
the digital display tube will display the follow procedure when push SW1 each time.
N Display Remark
00 Normal display Display running frequency, running state or malfunction code
Actual data*HP*10
If capacity demand code is higher than 99, the digital display
01 Indoor unit capacity demand code
02 Amendatory capacity demand code
The frequency after the capacity requirement
03
transfer
04 The frequency after the frequency limit
05 The frequency of sending to 341
Indoor unit evaporator outlet temp.(heating T2，
06
cooling T2B)
07 Condenser pipe temp.(T3)
08 Outdoor ambient temp.(T4)
09 Compressor discharge temp.(Tp)
10 AD value of current
11 AD value of voltage
12 Indoor unit running mode code Off:0, Fan only 1,Cooling:2, Heating:3
13 Outdoor unit running mode code Off:0, Fan only 1,Cooling:2, Heating:3, Forced cooling:4
14 EXV open angle
15 Frequency limit symbol
tube will show single digit and tens digit. (For example, the
digital display tube show “5.0”,it means the capacity demand
is 15. the digital display tube show “60”,it means the capacity
demand is 6.0)
If the temp. is lower than 0 degree, the digital display tube will
show “0”.If the temp. is higher than 70 degree, the digital
display tube will show “70”.
If the temp. is lower than -9 degree, the digital display tube will
show “-9”.If the temp. is higher than 70 degree, the digital
display tube will show “70”. If the indoor unit is not connected,
the digital display tube will show: “――”
The display value is between 13~129 degree. If the temp. is
lower than 13 degree, the digital display tube will show “13”.If
the temp. is higher than 99 degree, the digital display tube will
show single digit and tens digit. (For example, the digital
display tube show “0.5”,it means the compressor discharge
temp. is 105 degree. the digital display tube show “1.6”,it
means the compressor discharge temp. is 116 degree)
The display value is hex number.
Actual data/4.
If the value is higher than 99, the digital display tube will show
single digit and tens digit.
For example ,the digital display tube show “2.0”,it means the
EXV open angle is 120×4=480p.)
Frequency limit
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
caused by IGBT
radiator
Frequency limit
caused by PFC
Frequency limit
caused by T4.
Frequency limit
caused by T2.
Frequency limit
caused by T3.
Frequency limit
caused by Tp.
Frequency limit
caused by current
The display value is hex
number. For example,
the digital display tube
show 2A,then Bit5=1,
Bit3=1, Bit1=1.
It means frequency limit
caused by T4,T3 and
current.
44 Electrical Control System
Electrical Control Function
Bit0
16 DC fan motor speed
The display value is between 30~120 degree. If the temp. is
lower than 30 degree, the digital display tube will show “30”.If
the temp. is higher than 99 degree, the digital display tube will
17 IGBT radiator temp.
18 Indoor unit number The indoor unit can communicate with outdoor unit well.
19 Condenser pipe temp. of 1# indoor unit If the temp. is lower than 0 degree, the digital display tube will
20 Condenser pipe temp. of 2# indoor unit
21 Condenser pipe temp. of 3# indoor unit
22 1# Indoor unit capacity demand code
23 2# Indoor unit capacity demand code
24 3# Indoor unit capacity demand code
show single digit and tens digit. (For example, the digital
display tube show “0.5”,it means the IGBT radiator temp. is
105 degree. the digital display tube show “1.6”,it means the
IGBT radiator temp. is 116 degree)
show “0”.If the temp. is higher than 70 degree, the digital
display tube will show “70”. If the capacity demand is 0, , the
digital display tube will show “0. If the indoor unit is not
connected, the digital display tube will show: “――”(heating
T2，cooling T2B)
Actual data*HP*10
If capacity demand code is higher than 99, the digital display
tube will show single digit and tens digit. (For example, the
digital display tube show “5.0”,it means the capacity demand
is 15. the digital display tube show “60”,it means the capacity
demand is 6.0). If the indoor unit is not connected, the digital
display tube will show: “――”
Frequency limit
caused by voltage
Electrical Control System 45
Troubleshooting
2. Troubleshooting
2.1 Display board
Display board of Ceiling-floor indoor unit
2.2 Indoor unit malfunction
NO. Malfunction
Communication malfunction between indoor
1
and outdoor units.
Defrosting
lamp
X X X
Alarm
lamp
Running lamp
Timer
lamp
☆
Display(digital
tube)
E1
Open or short circuit of T1 temperature
2
sensor
Open or short circuit of T2 temperature
3
sensor
Open or short circuit of T2B temperature
4
sensor
5 Indoor EEPROM malfunction
6 Indoor fan speed is out of control
7 Refrigerant Leakage Detection
8 Outdoor unit malfunction X
9 Full-water malfunction X
Communication malfunction between main
10
PCB and up-down panel PCB
11 Up-down panel malfunction
12 Up-down panel is not closed
Communication malfunction between master
13
unit and slave unit
14 Other malfunction of master unit or slave unit X
O (on) X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
F0,F1,F2 is only available for super-slim cassette
X X
X X
X X
☆
☆ ☆
☆ ☆
☆ ☆ ☆
☆ ☆
☆ ☆
X
X X X E7
◎
☆
☆
☆ ☆
☆
☆
☆
X X E8
O X
X X Ed
X X EE
X
X O F2
X
X E2
X E3
X E4
EC
X F0
☆
☆
X F4
F1
F3
46 Electrical Control System
Troubleshooting
2.3 Outdoor unit malfunction
Display Malfunction or Protection
E0 Outdoor EEPROM malfunction
E2
E3
E4 Open or short circuit of T3 or T4 temperature sensor
E5 Voltage protection of compressor
P0 Top temperature protection of compressor
P3 Current protection of compressor
P4 Discharge temperature protection of compressor
P5 High temperature protection of condenser
P6 IPM module protection
P7 High temperature protection of evaporator
Indoor / outdoor units communication error
Communication malfunction between IPM board and outdoor main board
In low ambient cooling mode, the LED displays“LC” or alternative displays between running frequency
and “LC”(each displays 0.5s)
Electrical Control System 47
Troubleshooting
2.4 Solving steps for typical malfunction
2.4.1 For the indoor unit
2.4.1.1 Open or short circuit of temperature sensor
48 Electrical Control System
Troubleshooting
2.4.1.2. Outdoor unit malfunction
Electrical Control System 49
Troubleshooting
2.4.1.3. Indoor EEPROM malfunction
2.4.1.4. Full-water malfunction
50 Electrical Control System
Troubleshooting
2.4.1.5. Indoor fan Speed has been out of control. (Only for the units used AC motor)
Shut off the power supply
and turn it on 5 seconds
later.Is it still displaying
the error code?
Yes
No
The unit operates normally.
S h u t of f th e p o w e r
su p p l y , rotate the cross
fan by hand. Does it
rotate properly?
Yes
Check the wires of
fan motor. Are all the
connections good?
Yes
Check the resistance value of
indoor fan motor, is it normal?
Yes
Replace indoor PCB.
Disassembly the
No No
connection between
fan and motor, check if
the bearing is normal?
Yes
Correct the connections.No
No
Replace the bearing.
Replace indoor fan motor.
2.4.1.7. Refrigerant Leakage Detection
Electrical Control System 51
Troubleshooting
2.4.2 For the outdoor unit
2.4.2.1. E0 malfunction
E0 display
Outdoor EEPROM malfunction
Yes
If the EEPROM chip
is welded on PCB,
replace the PCB
directly. Otherwise,
No
Insert the EEPROM well
check whether the
EEPROM chip
plugged in PCB well?
Yes
Replace the outdoor main board
52 Electrical Control System
Troubleshooting
2.4.2.2. E2 malfunction
E2 display
Indoor / outdoor units communication error
Power off, then turn on the unit 5
seconds later(reconnect the power
wire).Is the error still displaying
after several minutes?
Yes
Check whether there’s any
interference.
Such as too many lamps, power
transformers? Or the signal wire
is too long?
Yes
Remove interference.
Increase the capacity of anti-
interference
No
Check whether the signal wire
is shield cable or whether the
shield cable is earthing?
Yes
Check whether the wire is
correct polarity? P to P, Q to Q,
E to E?
Yes
Check whether the signal wire
is broken?
No
Check whether the signal wires
insert on PCB well?
No
No
Yes
No
Adopt shield cable/Shield
cable earthing.
Correct the connection.
Replace the signal wire.
Pull out and insert back.
Yes
Replace indoor PCB, is the error
distinguished?
No
Replace the outdoor PCB.
Electrical Control System 53
Troubleshooting
2.4.2.3. E3 malfunction
54 Electrical Control System
Troubleshooting
2.4.2.4. E4 malfunction
Electrical Control System 55
Troubleshooting
2.4.2.5. E5 malfunction (For single phase units)
E5 display
Voltage protection
Check the voltage of
outdoor unit power supply,
whether the voltage
No
Check the power supply
between L(1) and N is about
220~240VAC
Yes
Replace the power board,
then check whether the
system can run normally
No
Check whether the voltage
of IPM board P and N is
normal? DC277-356V for
18K/24K/30KBtu/h; DC277-
410V for 36K/48KBtu/h
No
Replace bridge rectifiers,
and then check whether the
system can run normally
No
Replace IPM board, and
then check whether the
system can run normally
Yes
Yes
Yes
Yes
No
Replace outdoor main board
Trouble is solved
56 Electrical Control System
Troubleshooting
2.4.2.6. P0 malfunction
Electrical Control System 57
Troubleshooting
2.4.2.7. P3 malfunction
58 Electrical Control System
Troubleshooting
2.4.2.8. P4 malfunction
When compressor discharge temperature is higher than 115°C, the unit will stop, and unit runs again when
compressor discharge temperature is lower than 90°C.
P4 display
Temperature protection of
compressor discharge
Check whether the
compressor discharge temp.
is more than 115°C ?
No
Check whether the wiring
connection is right between
compressor discharge temp.
sensor and PCB according
to wiring diagrams?
Yes
Judge: The
discharge temp.
sensor is broken
Method: Check whether the
resistance of compressor
discharge temp. sensor is
right refer to the Appendix 2
Yes
Check whether the
refrigerant is leak
No
No
Stop leaking and add refrigerant
Yes
Correct the wiring connection
Replace the compressor discharge temp. sensor
Yes
Replace outdoor main board
Trouble is solved
Electrical Control System 59
Troubleshooting
2.4.2.9. P5 malfunction
When condenser high temp. is more than 65°C, the unit will stop, and unit runs again when outdoor pipe
temp. less than 52°C.
60 Electrical Control System
Troubleshooting
2.4.2.10. P6 malfunction (For single phase units)
At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or
close to 0, the IPM is defective. Otherwise, please follow the procedure below:
Electrical Control System 61
Troubleshooting
2.4.2.11. P7 malfunction
P7 display
High temperature protection of
evaporator
Whether compressor
operates?
Yes
Check whether the heat
exchanger is dirty, the air-
outlet is blocked and the
indoor fan is running
normal?
No
Clean the heat exchanger and
the air-outlet
Check whether the
indoor fan is running
normal
No
Whether the
connection is
good?
Yes
Check the
resistance value of
the sensor via
Appendix 1,Is it
normal?
Yes
Whether the indoor
PCB is normal?
Reconnect and retestNo
No
Replace the temperature sensor
Replace the indoor PCBNo
No
Check refrigerant system
(such as clogging of
capillary etc.)
62 Electrical Control System
Troubleshooting
Appendix 1 Temperature Sensor Resistance Value Table (℃--K)
℃
-20
-19 108.146 21 12.0561 61 2.27249 101 0.61148
-18 101.517 22 11.5000 62 2.19073 102 0.59386
-17 96.3423 23 10.9731 63 2.11241 103 0.57683
-16 89.5865 24 10.4736 64 2.03732 104 0.56038
-15 84.2190 25 10.000 65 1.96532 105 0.54448
-14 79.3110 26 9.55074 66 1.89627 106 0.52912
-13 74.5360 27 9.12445 67 1.83003 107 0.51426
-12 70.1698 28 8.71983 68 1.76647 108 0.49989
-11 66.0898 29 8.33566 69 1.70547 109 0.48600
-10 62.2756 30 7.97078 70 1.64691 110 0.47256
-9 58.7079 31 7.62411 71 1.59068 111 0.45957
-8 56.3694 32 7.29464 72 1.53668 112 0.44699
-7 52.2438 33 6.98142 73 1.48481 113 0.43482
-6 49.3161 34 6.68355 74 1.43498 114 0.42304
-5 46.5725 35 6.40021 75 1.38703 115 0.41164
-4 44.0000 36 6.13059 76 1.34105 116 0.40060
-3 41.5878 37 5.87359 77 1.29078 117 0.38991
-2 39.8239 38 5.62961 78 1.25423 118 0.37956
-1 37.1988 39 5.39689 79 1.21330 119 0.36954
0 35.2024 40 5.17519 80 1.17393 120 0.35982
1 33.3269 41 4.96392 81 1.13604 121 0.35042
2 31.5635 42 4.76253 82 1.09958 122 0.3413
3 29.9058 43 4.57050 83 1.06448 123 0.33246
4 28.3459 44 4.38736 84 1.03069 124 0.32390
5 26.8778 45 4.21263 85 0.99815 125 0.31559
6 25.4954 46 4.04589 86 0.96681 126 0.30754
7 24.1932 47 3.88673 87 0.93662 127 0.29974
8 22.5662 48 3.73476 88 0.90753 128 0.29216
9 21.8094 49 3.58962 89 0.87950 129 0.28482
10 20.7184 50 3.45097 90 0.85248 130 0.27770
11 19.6891 51 3.31847 91 0.82643 131 0.27078
12 18.7177 52 3.19183 92 0.80132 132 0.26408
13 17.8005 53 3.07075 93 0.77709 133 0.25757
14 16.9341 54 2.95896 94 0.75373 134 0.25125
15 16.1156 55 2.84421 95 0.73119 135 0.24512
16 15.3418 56 2.73823 96 0.70944 136 0.23916
17 14.6181 57 2.63682 97 0.68844 137 0.23338
18 13.9180 58 2.53973 98 0.66818 138 0.22776
19 13.2631 59 2.44677 99 0.64862 139 0.22231
K Ohm
115.266
℃
20 12.6431 60 2.35774 100 0.62973
K Ohm
℃
K Ohm
℃
K Ohm
Electrical Control System 63
Appendix 2
Unit: ℃---K Discharge temp. sensor table
-20 542.7 20 68.66 60 13.59 100 3.702
-19 511.9 21 65.62 61 13.11 101 3.595
-18 483 22 62.73 62 12.65 102 3.492
-17 455.9 23 59.98 63 12.21 103 3.392
-16 430.5 24 57.37 64 11.79 104 3.296
-15 406.7 25 54.89 65 11.38 105 3.203
-14 384.3 26 52.53 66 10.99 106 3.113
-13 363.3 27 50.28 67 10.61 107 3.025
-12 343.6 28 48.14 68 10.25 108 2.941
-11 325.1 29 46.11 69 9.902 109 2.86
-10 307.7 30 44.17 70 9.569 110 2.781
-9 291.3 31 42.33 71 9.248 111 2.704
-8 275.9 32 40.57 72 8.94 112 2.63
-7 261.4 33 38.89 73 8.643 113 2.559
-6 247.8 34 37.3 74 8.358 114 2.489
-5 234.9 35 35.78 75 8.084 115 2.422
-4 222.8 36 34.32 76 7.82 116 2.357
-3 211.4 37 32.94 77 7.566 117 2.294
-2 200.7 38 31.62 78 7.321 118 2.233
-1 190.5 39 30.36 79 7.086 119 2.174
0 180.9 40 29.15 80 6.859 120 2.117
1 171.9 41 28 81 6.641 121 2.061
2 163.3 42 26.9 82 6.43 122 2.007
3 155.2 43 25.86 83 6.228 123 1.955
4 147.6 44 24.85 84 6.033 124 1.905
5 140.4 45 23.89 85 5.844 125 1.856
6 133.5 46 22.89 86 5.663 126 1.808
7 127.1 47 22.1 87 5.488 127 1.762
8 121 48 21.26 88 5.32 128 1.717
9 115.2 49 20.46 89 5.157 129 1.674
10 109.8 50 19.69 90 5 130 1.632
11 104.6 51 18.96 91 4.849
12 99.69 52 18.26 92 4.703
13 95.05 53 17.58 93 4.562
14 90.66 54 16.94 94 4.426
15 86.49 55 16.32 95 4.294 B(25/50)=3950K
16 82.54 56 15.73 96 4.167
17 78.79 57 15.16 97 4.045
18 75.24 58 14.62 98 3.927
19 71.86 59 14.09 99 3.812
R(90℃)=5KΩ±3%
64 Electrical Control System
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