FILE NO. A03-001
Revised:5/July/2004
SPLIT TYPE
RAS-10JKCVP RAS-10JACVP RAS-13JKCVP RAS-13JACVP
PRINTED IN JAPAN, Jul.,2004 ToMo
CONTENTS
1. |
SPECIFICATIONS ..................................................................................... |
3 |
2. |
REFRIGERANT R410A ............................................................................. |
5 |
3. |
CONSTRUCTION VIEWS ........................................................................ |
13 |
4. |
WIRING DIAGRAM .................................................................................. |
15 |
5. |
SPECIFICATIONS OF ELECTRICAL PARTS ......................................... |
16 |
6. |
REFRIGERANT CYCLE DIAGRAM ........................................................ |
17 |
7. |
CONTROL BLOCK DIAGRAM ................................................................ |
18 |
8. |
OPERATION DESCRIPTION ................................................................... |
20 |
9. |
INSTALLATION PROCEDURE ................................................................ |
36 |
10. |
HOW TO DIAGNOSE THE TROUBLE ...................................................... |
47 |
11. |
HOW TO REPLACE THE MAIN PARTS ................................................... |
68 |
12. |
EXPLODED VIEWS AND PARTS LIST ................................................... |
81 |
– 2 –
1. SPECIFICATIONS
1-1. Specifications
RAS-10JKCVP/RAS-10JACVP, RAS-13JKCVP/RAS-13JACVP
Unit model |
Indoor |
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RAS-10JKCVP |
RAS-13JKCVP |
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Outdoor |
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RAS-10JACVP |
RAS-13JACVP |
|
Cooling capacity |
|
|
(kW) |
2.5 |
3.5 |
||
Cooling capacity range |
|
|
(kW) |
0.6–3.4 |
0.6–4.2 |
||
Power supply |
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1Ph/50Hz/220–240 V, 1Ph/60Hz/220 V |
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Electric |
Indoor |
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Operation mode |
|
Cooling |
||
characteristics |
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Running current |
(A) |
0.15 |
0.15 |
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Power consumption |
(W) |
30 |
30 |
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Power factor |
(%) |
87 |
87 |
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Outdoor |
|
Operation mode |
|
Cooling |
||
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Running current |
(A) |
2.73/2.60/2.49 |
4.65/4.44/4.25 |
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Power consumption |
(W) |
540 |
920 |
|
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Power factor |
(%) |
90 |
90 |
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Starting current |
(A) |
2.88/2.75/2.64 |
4.80/4.59/4.40 |
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COP |
|
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|
(Cooling) |
|
4.39 |
3.68 |
Operating |
Indoor |
|
High |
(Cooling) |
(dB•A) |
42 |
43 |
noise |
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Medium |
(Cooling) |
(dB•A) |
33 |
34 |
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Low |
(Cooling) |
(dB•A) |
25 |
26 |
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Outdoor |
|
(Cooling) |
(dB•A) |
45 |
48 |
|
Indoor unit |
Unit model |
|
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|
RAS-10JKCVP |
RAS-13JKCVP |
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Dimension |
|
Height |
|
(mm) |
250 |
250 |
|
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Width |
|
(mm) |
790 |
790 |
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Depth |
|
(mm) |
208 |
208 |
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Net weight |
|
|
(kg) |
10 |
10 |
|
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Fan motor output |
|
(W) |
30 |
30 |
||
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Air flow rate |
|
(Cooling) |
(m³/h) |
550 |
560 |
|
Outdoor unit |
Unit model |
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|
RAS-10JACVP |
RAS-13JACVP |
|
|
Dimension |
|
Height |
|
(mm) |
550 |
550 |
|
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|
Width |
|
(mm) |
780 |
780 |
|
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Depth |
|
(mm) |
270 |
270 |
|
Net weight |
|
|
(kg) |
33 |
33 |
|
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Compressor |
|
Motor output |
(W) |
750 |
750 |
|
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Type |
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|
Twin rotary type with DC-inverter variable speed control |
|
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Model |
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|
DA91A1F-45F |
DA91A1F-45F |
|
Fan motor output |
|
(W) |
43 |
43 |
||
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Air flow rate |
|
(Cooling) |
(m³/h) |
2150 |
2410 |
|
Piping |
Type |
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|
|
Flare connection |
Flare connection |
|
connection |
Indoor unit |
|
Liquid side |
|
Ø6.35 |
Ø6.35 |
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|||||
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Gas side |
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|
Ø9.52 |
Ø9.52 |
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Outdoor unit |
|
Liquid side |
|
Ø6.35 |
Ø6.35 |
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|
|
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Gas side |
|
|
Ø9.52 |
Ø9.52 |
|
Maximum length |
|
(m) |
25 |
25 |
||
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Maximum chargeless length |
(m) |
15 |
15 |
|||
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Maximum height difference |
(m) |
10 |
10 |
|||
Refrigerant |
Name of refrigerant |
|
|
R410A |
R410A |
||
|
Weight |
|
|
(kg) |
0.9 |
0.9 |
|
Wiring |
Power supply |
|
|
|
3 Wires : includes earth (Outdoor) |
3 Wires : includes earth (Outdoor) |
|
connection |
Interconnection |
|
|
4 Wires : includes earth |
4 Wires : includes earth |
||
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|||||
Usable temperature range |
|
Indoor |
(Cooling) |
(°C) |
21–32 |
21–32 |
|
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|
|
Outdoor |
(Cooling) |
(°C) |
10–46 |
10–46 |
Accessory |
Indoor unit |
|
Installation plate |
|
1 |
1 |
|
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Wireless remote controller |
|
1 |
1 |
|
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Batteries |
|
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2 |
2 |
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Remote controller holder |
|
1 |
1 |
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Zeolite-plus filter |
|
1 |
1 |
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Zeolite-3G filter |
|
1 |
1 |
|
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Mounting screw |
|
6 (Ø4 x 25L) |
6 (Ø4 x 25L) |
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Flat head wood screw |
|
2 (Ø3.1 x 16L) |
2 (Ø3.1 x 16L) |
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Dust collecting unit |
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1 |
1 |
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Installation manual |
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1 |
1 |
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Owner’s manual |
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1 |
1 |
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Pattern |
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|
1 |
1 |
•The specifications may be subject to change without notice for purpose of improvement.
–3 –
1-2. Operation Characteristic Curve
<Cooling>
Current (A)
8
7
6
5
4
3
2
1
0
0
RAS-10JKCVP
RAS-13JKCVP
• Conditions
Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C
Air flow : High Pipe length : 5m Voltage : 230V
20 |
40 |
60 |
80 |
100 |
120 |
Compressor speed (rps)
1-3. Capacity Variation Ratio According to Temperature
<Cooling>
Capacity ratio (%)
110
100
90 |
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80 |
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RAS-10JKCVP |
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RAS-13JKCVP |
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70 |
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• Conditions |
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||||
60 |
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Indoor : DB27˚C/WB19˚C |
|
* Capacity ratio : 100% = |
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Indoor air flow : High |
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Pipe length : 5m |
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3.5 kW (RAS-13JKCVP) |
|||||
50 |
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2.5 kW (RAS-10JKCVP) |
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32 |
33 |
34 |
35 |
36 |
37 38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
Outdoor temp. (˚C)
1-4. Pipe Length-Capacity Characterisitic
<Cooling>
Capacity (%)
120
110
100
90
RAS-10JKCVP
RAS-13JKCVP
80
70
60
50
0 |
5 |
10 |
15 |
20 |
25 |
30 |
Pipe length (m)
*20g/m is added for 15m or more.
*Capacity ratio : 100% = 3.5 kW (RAS-13JKCVP)
2.5 kW (RAS-10JKCVP)
– 4 –
2. REFRIGERANT R410A
This air conditioner adopts the new refrigerant HFC (R410A) which does not damage the ozone layer.
The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22). The refrigerating oil is also changed in accordance with change of refrigerant, so be careful that water, dust, and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time.
The next section describes the precautions for air conditioner using the new refrigerant. Conforming to contents of the next section together with the general cautions included in this manual, perform the correct and safe work.
2-1. Safety During Installation/Servicing
As R410A’s pressure is about 1.6 times higher than that of R22, improper installation/servicing may cause a serious trouble. By using tools and materials exclusive for R410A, it is necessary to carry out installation/servicing safely while taking the following precautions into consideration.
(1)Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A.
If other refrigerant than R410A is mixed, pressure in the refrigeration cycle becomes abnormally high, and it may cause personal injury, etc. by a rupture.
(2)Confirm the used refrigerant name, and use tools and materials exclusive for the refrigerant R410A.
The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air conditioner using R410A as refrigerant. To prevent mischarging, the diameter of the service port differs from that of R22.
(3)If a refrigeration gas leakage occurs during installation/servicing, be sure to ventilate fully.
If the refrigerant gas comes into contact with fire, a poisonous gas may occur.
(4)When installing or removing an air conditioner, do not allow air or moisture to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused.
(5)After completion of installation work, check to make sure that there is no refrigeration gas leakage.
If the refrigerant gas leaks into the room, coming into contact with fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.
(6)When an air conditioning system charged with a large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, even when refrigerant leaks, its concentration does not exceed the marginal level.
If the refrigerant gas leakage occurs and its concentration exceeds the marginal level, an oxygen starvation accident may result.
(7)Be sure to carry out installation or removal according to the installation manual.
Improper installation may cause refrigeration trouble, water leakage, electric shock, fire, etc.
(8)Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner technician or electrician.
Improper repair’s may result in water leakage, electric shock and fire, etc.
2-2. Refrigerant Piping Installation
2-2-1. Piping Materials and Joints Used
For the refrigerant piping installation, copper pipes and joints are mainly used. Copper pipes and joints suitable for the refrigerant must be chosen and installed. Furthermore, it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants.
(1)Copper Pipes
It is necessary to use seamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed, deformed or discolored portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube may become blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than when using R22, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in Table 2-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.
– 5 –
Table 2-2-1 Thicknesses of annealed copper pipes
|
|
|
Thickness (mm) |
|
|
|
|
Nominal diameter |
Outer diameter (mm) |
R410A |
R22 |
|
|
|
|
1/4 |
6.35 |
0.80 |
0.80 |
|
|
|
|
3/8 |
9.52 |
0.80 |
0.80 |
|
|
|
|
1/2 |
12.70 |
0.80 |
0.80 |
|
|
|
|
5/8 |
15.88 |
1.00 |
1.00 |
|
|
|
|
(2)Joints
For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.
a)Flare Joints
Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm. In such a case, socket joints can be used.
Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 2-2-3 to 2- 2-6 below.
b)Socket Joints
Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose diameter is larger than 20 mm.
Thicknesses of socket joints are as shown in Table 2-2-2.
Table 2-2-2 Minimum thicknesses of socket joints
Nominal diameter |
Reference outer diameter of |
Minimum joint thickness |
|
copper pipe jointed (mm) |
(mm) |
||
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|||
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|
1/4 |
6.35 |
0.50 |
|
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|
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|
3/8 |
9.52 |
0.60 |
|
|
|
|
|
1/2 |
12.70 |
0.70 |
|
|
|
|
|
5/8 |
15.88 |
0.80 |
|
|
|
|
2-2-2. Processing of Piping Materials
When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used, and that refrigerant does not leak. When using lubricating oils in the piping processing, use such lubricating oils whose water content has been removed. When stored, be sure to seal the container with an airtight cap or any other cover.
(1)Flare Processing Procedures and Precautions
a)Cutting the Pipe
By means of a pipe cutter, slowly cut the pipe so that it is not deformed.
b)Removing Burrs and Chips
If the flared section has chips or burrs, refrigerant leakage may occur. Carefully remove all burrs and clean the cut surface before installation.
c)Insertion of Flare Nut
– 6 –
d) Flare Processing
Make certain that a clamp bar and copper pipe have been cleaned.
By means of the clamp bar, perform the flare processing correctly.
Use either a flare tool for R410A or conventional flare tool.
Flare processing dimensions differ according to the type of flare tool. When using a conventional flare tool, be sure to secure “dimension A” by using a gauge for size adjustment.
ØD |
A |
Fig. 2-2-1 Flare processing dimensions
Table 2-2-3 Dimensions related to flare processing for R410A
|
Outer |
|
|
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|
A (mm) |
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Nominal |
Thickness |
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diameter |
Flare tool for R410A |
Conventional flare tool |
||||||||||
diameter |
(mm) |
|||||||||||
(mm) |
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clutch type |
Clutch type |
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Wing nut type |
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1/4 |
6.35 |
0.8 |
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0 to 0.5 |
1.0 to 1.5 |
|
1.5 to 2.0 |
|||||
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3/8 |
9.52 |
0.8 |
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0 to 0.5 |
1.0 to 1.5 |
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1.5 to 2.0 |
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1/2 |
12.70 |
0.8 |
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0 to 0.5 |
1.0 to 1.5 |
|
2.0 to 2.5 |
|||||
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5/8 |
15.88 |
1.0 |
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0 to 0.5 |
1.0 to 1.5 |
|
2.0 to 2.5 |
|||||
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Table 2-2-4 Dimensions related to flare processing for R22 |
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Outer |
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A (mm) |
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Nominal |
Thickness |
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diameter |
Flare tool for R410A |
Conventional flare tool |
||||||||||
diameter |
(mm) |
|||||||||||
(mm) |
|
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|||||||
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clutch type |
Clutch type |
|
Wing nut type |
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1/4 |
6.35 |
0.8 |
|
0 to 0.5 |
0.5 to 1.0 |
|
1.0 to 1.5 |
|||||
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3/8 |
9.52 |
0.8 |
|
0 to 0.5 |
0.5 to 1.0 |
|
1.0 to 1.5 |
|||||
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1/2 |
12.70 |
0.8 |
|
0 to 0.5 |
0.5 to 1.0 |
|
1.5 to 2.0 |
|||||
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|
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5/8 |
15.88 |
1.0 |
|
0 to 0.5 |
0.5 to 1.0 |
|
1.5 to 2.0 |
|||||
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Table 2-2-5 Flare and flare nut dimensions for R410A |
|
|
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||||||||
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||||
Nominal |
Outer |
Thickness |
|
|
Dimension (mm) |
|
|
Flare nut |
||||
diameter |
|
|
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|
|
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|
width |
|||
diameter |
(mm) |
|
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|||
(mm) |
A |
|
B |
|
C |
|
D |
|
(mm) |
|||
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|||||||
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1/4 |
6.35 |
0.8 |
9.1 |
|
9.2 |
|
6.5 |
|
13 |
|
17 |
|
|
|
|
|
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|
|
|
|
|
3/8 |
9.52 |
0.8 |
13.2 |
|
13.5 |
|
9.7 |
|
20 |
|
22 |
|
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|
1/2 |
12.70 |
0.8 |
16.6 |
|
16.0 |
|
12.9 |
|
23 |
|
26 |
|
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|
5/8 |
15.88 |
1.0 |
19.7 |
|
19.0 |
|
16.0 |
|
25 |
|
29 |
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|
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|
– 7 –
Table 2-2-6 Flare and flare nut dimensions for R22
Nominal |
Outer |
Thickness |
|
Dimension (mm) |
|
Flare nut |
||
diameter |
|
|
|
|
width |
|||
diameter |
(mm) |
|
|
|
|
|||
(mm) |
A |
B |
C |
D |
(mm) |
|||
|
|
|||||||
|
|
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|
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|
1/4 |
6.35 |
0.8 |
9.0 |
9.2 |
6.5 |
13 |
17 |
|
|
|
|
|
|
|
|
|
|
3/8 |
9.52 |
0.8 |
13.0 |
13.5 |
9.7 |
20 |
22 |
|
|
|
|
|
|
|
|
|
|
1/2 |
12.70 |
0.8 |
16.2 |
16.0 |
12.9 |
20 |
24 |
|
|
|
|
|
|
|
|
|
|
5/8 |
15.88 |
1.0 |
19.7 |
19.0 |
16.0 |
23 |
27 |
|
|
|
|
|
|
|
|
|
|
3/4 |
19.05 |
1.0 |
23.3 |
24.0 |
19.2 |
34 |
36 |
|
|
|
|
|
|
|
|
|
|
|
˚ |
˚to |
46 |
|
|
|
|
45 |
|
|
|
|
|
B A |
C D |
43˚ to 45˚
Fig. 2-2-2 Relations between flare nut and flare seal surface
(2)Flare Connecting Procedures and Precautions
a)Make sure that the flare and union portions do not have any scar or dust, etc.
b)Correctly align the processed flare surface with the union axis.
When it is strong, the flare nut may crack and may be made non-removable. When choosing the tightening torque, comply with values designated by manufacturers. Table 2-2-7 shows reference values.
c)Tighten the flare with designated torque by means of a torque wrench. The tightening torque for R410A is the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur.
NOTE :
When applying oil to the flare surface, be sure to use oil designated by the manufacturer. If any other oil is used, the lubricating oils may deteriorate and cause the compressor to burn out.
Table 2-2-7 Tightening torque of flare for R410A [Reference values]
Nominal |
Outer |
Tightening torque |
Tightening torque of torque |
|
diameter |
wrenches available on the market |
|||
diameter |
N•m (kgf•cm) |
|||
(mm) |
N•m (kgf•cm) |
|||
|
|
|||
|
|
|
|
|
1/4 |
6.35 |
14 to 18 (140 to 180) |
16 (160), 18 (180) |
|
|
|
|
|
|
3/8 |
9.52 |
33 to 42 (330 to 420) |
42 (420) |
|
|
|
|
|
|
1/2 |
12.70 |
50 to 62 (500 to 620) |
55 (550) |
|
|
|
|
|
|
5/8 |
15.88 |
63 to 77 (630 to 770) |
65 (650) |
|
|
|
|
|
– 8 –
2-3. Tools
2-3-1. Required Tools
The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.
The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.
(1)Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
(2)Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
(3)Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
|
|
|
|
R410A |
Conventional air |
|
|
|
|
air conditioner installation |
conditioner installation |
||
No. |
Used tool |
Usage |
|
|
|
|
Existence of |
|
Whether |
Whether new equipment |
|||
|
|
|
|
conventional |
||
|
|
|
new equipment |
can be used with |
||
|
|
|
equipment |
|||
|
|
|
for R410A |
|
conventional refrigerant |
|
|
|
|
|
can be used |
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
Flare tool |
Pipe flaring |
Yes |
|
*(Note 1) |
¡ |
|
Copper pipe gauge for |
Flaring by |
|
|
*(Note 1) |
*(Note 1) |
2 |
adjusting projection |
conventional flare |
Yes |
|
||
|
margin |
tool |
|
|
|
|
|
|
|
|
|
|
|
3 |
Torque wrench |
Connection of flare |
Yes |
|
X |
X |
(For Ø12.7) |
nut |
|
||||
|
|
|
|
|
||
|
|
|
|
|
|
|
4 |
Gauge manifold |
Evacuating, |
|
|
|
|
|
|
refrigerant charge, |
Yes |
|
X |
X |
|
Charge hose |
|
||||
5 |
run check, etc. |
|
|
|
|
|
|
|
|
|
|
|
|
6 |
Vacuum pump adapter |
Vacuum evacuating |
Yes |
|
X |
¡ |
|
|
|
|
|
|
|
7 |
Electronic balance for |
Refrigerant charge |
Yes |
|
X |
¡ |
refrigerant charging |
|
|||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8 |
Refrigerant cylinder |
Refrigerant charge |
Yes |
|
X |
X |
|
|
|
|
|
|
|
9 |
Leakage detector |
Gas leakage check |
Yes |
|
X |
¡ |
|
|
|
|
|
|
|
10 |
Charging cylinder |
Refrigerant charge |
(Note 2) |
|
X |
X |
|
|
|
|
|
|
|
(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
(Note 2) Charging cylinder for R410A is being currently developed.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.
(1) |
Vacuum pump |
(5) |
Pipe bender |
(10) |
Hexagon wrench |
|
Use vacuum pump by |
(6) |
Level vial |
|
(Opposite side 4mm) |
|
attaching vacuum pump adapter. |
(7) |
Screwdriver (+, –) |
(11) |
Tape measure |
(2) |
Torque wrench (For Ø6.35, Ø9.52) |
|
|
||
(8) |
Spanner or Monkey wrench |
(12) |
Metal saw |
||
(3) |
Pipe cutter |
(9) |
Hole core drill (Ø65) |
|
|
(4) |
Reamer |
|
|
||
|
|
|
|
Also prepare the following equipments for other installation method and run check.
(1) |
Clamp meter |
(3) |
Insulation resistance tester |
(2) |
Thermometer |
(4) |
Electroscope |
– 9 –
2-4. Recharging of Refrigerant
When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps.
Recover the refrigerant, and check no refrigerant remains in the equipment.
Connect the charge hose to packed valve service port at the outdoor unit’s gas side.
Connect the charge hose to the vacuum pump adapter.
Open fully both packed valves at liquid and gas sides.
Place the handle of the gauge manifold Low in the fully opened position, and turn on the vacuum pump’s power switch. Then, evacuating the refrigerant in the cycle.
When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch.
Keep the status as it is for 1 to 2 minutes, and ensure that the compound gauge’s pointer does not return.
Set the refrigerant cylinder to the electronic balance, connect the connecting hose to the cylinder and the connecting port of the electronic balance, and charge liquid refrigerant.
(For refrigerant charging, see the figure below.)
(1)Never charge refrigerant exceeding the specified amount.
(2)If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.
(3)Do not carry out additional charging.
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high pressure, and may cause a rupture or personal injury.
(INDOOR unit) |
(Liquid side) |
(OUTDOOR unit) |
Opened
(Gas side)
Refrigerant cylinder (With siphon pipe)
Check valve
Closed
Open/Close valve for charging
Service port
Electronic balance for refrigerant charging
Fig. 2-4-1 Configuration of refrigerant charging
– 10 –
(1)Be sure to make setting so that liquid can be charged.
(2)When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.
It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.
[ Cylinder with siphon ] |
[ Cylinder without siphon ] |
Gauge manifold |
Gauge manifold |
OUTDOOR unit |
OUTDOOR unit |
Refrigerant
cylinder
Electronic
balance
R410A refrigerant is HFC mixed refrigerant. Therefore, if it is charged with gas, the composition of the charged refrigerant changes and the characteristics of the equipment varies.
cylinder Refrigerant
Electronic
balance
Siphon
Fig. 2-4-2
2-5. Brazing of Pipes
2-5-1. Materials for Brazing
(1)Silver brazing filler
Silver brazing filler is an alloy mainly composed of silver and copper. It is used to join iron, copper or copper alloy, and is relatively expensive though it excels in solderability.
(2)Phosphor bronze brazing filler
Phosphor bronze brazing filler is generally used to join copper or copper alloy.
(3)Low temperature brazing filler
Low temperature brazing filler is generally called solder, and is an alloy of tin and lead. Since it is weak in adhesive strength, do not use it for refrigerant pipes.
(1)Phosphor bronze brazing filler tends to react with sulfur and produce a fragile compound water solution, which may cause a gas leakage. Therefore, use any other type of brazing filler at a hot spring resort, etc., and coat the surface with a paint.
(2)When performing brazing again at time of servicing, use the same type of brazing filler.
2-5-2. Flux
(1)Reason why flux is necessary
•By removing the oxide film and any foreign matter on the metal surface, it assists the flow of brazing filler.
•In the brazing process, it prevents the metal surface from being oxidized.
•By reducing the brazing filler’s surface tension, the brazing filler adheres better to the treated metal.
– 11 –
(2)Characteristics required for flux
•Activated temperature of flux coincides with the brazing temperature.
•Due to a wide effective temperature range, flux is hard to carbonize.
•It is easy to remove slag after brazing.
•The corrosive action to the treated metal and brazing filler is minimum.
•It excels in coating performance and is harmless to the human body.
As the flux works in a complicated manner as described above, it is necessary to select an adequate type of flux according to the type and shape of treated metal, type of brazing filler and brazing method, etc.
(3)Types of flux
•Noncorrosive flux
Generally, it is a compound of borax and boric acid.
It is effective in case where the brazing temperature is higher than 800°C.
•Activated flux
Most of fluxes generally used for silver brazing are this type.
It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride, potassium chloride and sodium fluoride to the borax-boric acid compound.
(4)Piping materials for brazing and used brazing filler/flux
Piping |
Used brazing |
Used |
material |
filler |
flux |
|
|
|
Copper - Copper |
Phosphor copper |
Do not use |
|
|
|
Copper - Iron |
Silver |
Paste flux |
|
|
|
Iron - Iron |
Silver |
Vapor flux |
|
|
|
(1)Do not enter flux into the refrigeration cycle.
(2)When chlorine contained in the flux remains within the pipe, the lubricating oil deteriorates. Therefore, use a flux which does not contain chlorine.
(3)When adding water to the flux, use water which does not contain chlorine (e.g. distilled water or ion-exchange water).
(4)Remove the flux after brazing.
2-5-3. Brazing
As brazing work requires sophisticated techniques, experiences based upon a theoretical knowledge, it must be performed by a person qualified.
In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry Nitrogen gas (N2) flow.
Never use gas other than Nitrogen gas.
(1)Brazing method to prevent oxidation
1)Attach a reducing valve and a flow-meter to the Nitrogen gas cylinder.
2)Use a copper pipe to direct the piping material, and attach a flow-meter to the cylinder.
3)Apply a seal onto the clearance between the piping material and inserted copper pipe for Nitrogen in order to prevent backflow of the Nitrogen gas.
4)When the Nitrogen gas is flowing, be sure to keep the piping end open.
5)Adjust the flow rate of Nitrogen gas so that it is lower than 0.05 m3/Hr or 0.02 MPa (0.2kgf/cm2) by means of the reducing valve.
6)After performing the steps above, keep the Nitrogen gas flowing until the pipe cools down to a certain extent (temperature at which pipes are touchable with hands).
7)Remove the flux completely after brazing.
M Flow meter
Stop valve
Nitrogen gas cylinder
From Nitrogen cylinder
Pipe Nitrogen gas
Rubber plug
Fig. 2-5-1 Prevention of oxidation during brazing
– 12 –
3. CONSTRUCTION VIEWS
3-1. Indoor Unit
RAS-10JKCVP, RAS-13JKCVP
Indoor air suction port |
Air filter |
Indoor heat exchanger |
|
790 |
208 |
Front panel
60 |
|
7 |
48 |
|
Knockout system
Suction grille |
Plasma air purifying unit |
48
54.5 60
Air ionizer
48
60 54.5
|
60 |
48 |
7 |
|
Knockout system
790
Installation plate hanging section
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
|
|
|
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|
|
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|
|
|
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|
|
|
|
|
|
|
|
|
Drain hose |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||||
|
|
|
|
|
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|
||||||||
290 |
|
|
|
|
|
|
|
|
|
||||||||||||
|
|
|
|
|
|
|
|
|
(Outside length: 0.54m)
Installation plate hanging section
Auxiliary hose (Outside length: 0.45m) Flare Ø6.35
Auxiliary hose (Outside length: 0.36m) Flare Ø9.52
|
|
|
91 |
|
|
608 |
|
|
|
|
|
|
450 |
|
|
|
|
10 |
10 |
288 |
|
|
|
|
|
Hanging |
more |
|
46 |
19 |
7 |
|
section |
67 or |
|
|
|
||||
250 |
164 |
|
(Minimum |
|
|
|
distance to wall) |
|
|
|
|||
|
|
|
|
|
||
|
|
|
140 or more |
|
|
|
|
38 |
|
2 |
Lower part |
|
|
|
|
|
|
|
||
|
|
|
|
hanging |
Center line |
|
|
|
|
|
section |
of main unit |
|
|
|
|
|
|
Center line of |
|
|
|
|
|
|
installation plate |
|
|
|
|
91 |
|
304 |
|
|
|
|
|
|
|
790 |
10
(Minimum distance to ceiling)
Outline of installation plate
304
91
Stud bolt hole For Ø6
10
Stud bolt hole For Ø8 to Ø10
(Minimum distance to wall)
140 or more
40 |
91 |
– 13 –
3-2. Outdoor Unit
RAS-10JACVP, RAS-13JACVP
A leg part |
600 |
|
90 |
Ø11 x 17U-shape hole |
|
Ø25 drain hole |
50 |
|
|
|
|
(For Ø8-Ø10 anchor bolt) |
||
|
115 |
|
|
|
pitch) |
|
|
|
|
|
|
|
|
|
310 (Anchorbolt long hole 296 (ø 6 hole pitch) 270 |
76 |
|
|
8-Ø6 hole |
|
|
|
|
|
|
|
|
|
(For fixing outdoor unit) |
B leg part |
16 |
|
|
Ø11 x 17 long hole |
|
|
|
|
(For Ø8-Ø10 anchor bolt) |
Ø4.5 embossing (Ø4STS used)
(For sunshade roof attaching)
49,5 |
147 |
21 |
Fan guard |
115.5 |
Hanger
540 |
548 |
8 |
780 |
|
Connecting pipe port
(Pipe dia.Ø6.35)
|
Connecting pipe port |
|
|
|
|
|
(Pipe dia.Ø9.52) |
|
|
Z |
view |
|
|
|
|
||
|
Mounting dimensions of anchor bolt |
|
|||
|
|
|
600 |
|
|
4 x Ø11 x 17U-shape hole |
|
|
|
|
|
(For Ø8-Ø10 anchor bolt) |
more |
|
|
A |
|
|
or50 |
D |
Intake |
||
|
|
|
|
||
|
|
|
|
|
|
|
Intake |
|
|
|
250 or more |
|
|
|
|
|
|
310 |
C 100 or |
|
|
Outside line |
(Minimum distance |
|
more |
|
|
||
|
|
|
|
of product |
from wall) |
|
200 or more |
|
|
|
|
|
|
|
Outlet |
4 x Ø11 × 17 long hole |
|
|
|
|
B |
(For Ø8-Ø10 anchor bolt) |
|
|
|
|
|
|
Valve cover |
157 |
59 |
|
21
Z
|
54 |
|
Charging |
|
port |
61 |
332 |
|
Earth terminal |
Detailed A leg part |
|
|||
|
|
|
|
600 |
|
|
|
50 |
|
|
|
|
36 |
R15 |
|
|
|
11 |
|
|
|
|
|
Outside line |
|
|
|
|
of product |
310 |
296 |
|
5 |
|
. |
|
|||
R5 |
|
2-Ø6 hole |
||
|
|
|
||
|
|
|
|
|
|
|
|
|
2-Ø6 hole |
310 |
296 |
|
11 |
|
|
|
|
Outside line of product
36 |
R15 |
50 |
|
600 |
R5 |
5 |
|
|
. |
Detailed B leg part
– 14 –
4. WIRING DIAGRAM
4-1. Outdoor Unit
RAS-10JACVP, RAS-13JACVP
|
Q200 |
|
|
IGBT MODULE |
|
BLU |
|
|
|
BZ BY BX EW BW EV BV EU |
BU |
P17 |
P18 |
|
P23 |
P22 |
P21 |
|
BLK |
WHI |
RED |
P.C. BOARD |
3 |
2 |
1 |
(MCC-813) |
3 |
2 |
1 |
|
|
|
DB01 CONVERTER |
REACTOR |
|
|
THERMOSTAT |
|||
|
|
MODULE |
|
|
FOR |
|
|
||
|
|
|
|
|
|
|
|
||
BRW |
ORN |
2 |
1 |
|
COMPRESSOR |
||||
1 |
1 CN500 |
|
|||||||
|
|
|
|
2 |
1 |
|
|||
|
|
A E G |
|
|
|
2 |
2 |
|
|
P20 |
P19 |
P10 |
P09 |
P08 |
P07 |
|
CN601 |
TD |
|
|
|
|
|
|
|
|
|||
|
|
|
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|
|
1 |
1 |
|
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|
2 |
2 |
|
|
|
|
|
|
|
|
3 |
3 |
|
ELECTRONIC |
POWER |
CT |
|
STARTER |
RELAY |
||
|
CN602 TO
1 1
2 2
C12
|
C13 |
CM |
C14 |
COMPRESSOR
FAN MOTOR CN300
RED 1 1 FM WHI 2 2 BLK 3 3
YEL 1 1 2
3
PNK 4 4 GRY 5 5
CN301
Q300 |
|
|
|
|
|
|
|
F04 FUSE |
|
|
P06 |
||
|
T3.15A |
|
|
|
||
|
|
|
|
|
|
SURGE |
|
|
|
|
|
|
ABSORBER |
|
|
|
|
|
|
VARISTOR |
|
|
|
|
|
|
F01 |
|
|
|
|
|
|
FUSE |
|
|
|
|
|
|
T25A |
P14 |
P13 |
P12 |
P11 |
P02 |
P03 |
P01 |
CN603 |
TS |
|
1 |
1 |
|
2 |
2 |
|
3 |
3 |
|
BLK
11 WHI
22 YEL
33 ORN
44 BLU PMV
55 RED
6 6 |
GRY PULSE |
|
MODULATING |
CN703 |
VALVE |
|
WHI ORN BLK
IGBT : Insulated Gate Bipolar Transistor
PUR YEL
|
|
|
|
|
|
|
|
1 2 3 L N |
|
Color |
||
4-2. Indoor Unit |
|
|
|
|
|
|
|
Identification |
||||
|
|
|
|
|
|
|
|
|
|
RED |
: RED |
|
RAS-10JKCVP, RAS-13JKCVP |
|
|
|
|
|
POWER |
||||||
|
|
|
|
|
WHI |
: WHITE |
||||||
|
|
|
|
|
SUPPLY |
|||||||
|
|
|
|
|
BLK |
|
|
BLK |
: BLACK |
|||
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220-240V/50Hz |
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BLK |
1 |
1 |
voltage-High supplyPower |
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220V/60Hz |
BLU |
: BLUE |
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1 |
2 |
3 |
4 |
purifierAir Electrode |
BLOCK |
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YEL |
: YELLOW |
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5 |
5 |
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2 |
2 |
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BRW |
: BROWN |
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3 |
3 |
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ORN |
: ORANGE |
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INDOOR |
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PUR |
: PURPUL |
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1 |
2 |
3 |
4 |
4 |
4 |
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2 3 |
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TERMINAL 1 |
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RED |
BRW |
BRW |
BRW |
6 |
6 |
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Heat |
GRY |
: GRAY |
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exchanger |
PNK |
: PINK |
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1 |
2 |
3 |
4 |
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Ion electrode |
BLK |
WHI RED |
GRN & YEL |
GRN& GREEN& |
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YEL |
: YELLOW |
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1 |
2 |
3 |
4 |
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3 |
1 |
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CN01 |
CN33 |
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CN22 |
CN23 |
CN21 |
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(WHI) |
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BLK |
(BLU) |
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1 |
1 |
BRW |
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1 |
1 |
FUSE |
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CN34 |
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Micro SW |
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BLK |
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2 |
2 |
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2 |
2 |
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BLU |
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F01 |
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HEAT EXCHANGER |
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AC 250V |
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(RED) |
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SENSOR (TC) |
CN03 |
T3.15A |
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CN10 |
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FAN MOTOR |
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(WHI) |
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(WHI) |
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BLK |
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RED |
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1 |
1 |
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1 |
1 |
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BLK |
2 |
2 |
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BLK |
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THERMO SENSOR |
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3 |
3 |
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WHI |
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DC MOTOR |
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(TA) |
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4 |
4 |
YEL |
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CN100 |
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CN13 |
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5 |
5 |
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AssemblyUnitWireless |
(WHI) |
BLU |
(WHI) |
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6 |
6 |
BLU |
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1 |
1 |
9 |
9 |
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SUPPLYPOWER |
CIRCUIT |
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2 |
2 |
BLUBLU 8 8 |
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LINE |
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DC5V |
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CN07 |
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3 |
3 |
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7 |
7 |
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FILTER |
DB01 |
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(WHI) |
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4 |
4 |
BLUBLU 6 6 |
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WHI |
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DC12V |
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1 |
1 |
1 |
1 |
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5 |
5 |
BLU |
5 |
5 |
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2 |
2 |
YEL |
2 |
2 |
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6 |
6 |
BLU |
4 |
4 |
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TNR |
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3 |
3 |
YEL |
3 |
3 |
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7 |
7 |
BLU |
3 |
3 |
MAIN P.C. BOARD |
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4 |
4 |
YEL |
4 |
4 |
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8 |
8 |
WHI |
2 |
2 |
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5 |
5 |
YEL |
5 |
5 |
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9 |
9 |
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1 |
1 |
(MCC-891) |
CN08 |
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MCC-900 |
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LOUVER MOTOR |
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1 |
2 |
3 |
4 |
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– 15 – |
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5. SPECIFICATIONS OF ELECTRICAL PARTS
5-1. Indoor Unit
RAS-10JKCVP, RAS-13JKCVP
No. |
Parts name |
Type |
|
Specifications |
|
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|
||
1 |
Fan motor (for indoor) |
MF-280-30-1 |
DC280–340V, 30W |
||
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2 |
Room temp. sensor |
( – ) |
10kΩ |
at 25°C |
|
(TA-sensor) |
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3 |
Heat exchanger temp. sensor |
( – ) |
10kΩ |
at 25°C |
|
(TC-sensor) |
|||||
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||
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||
4 |
Louver motor |
MP24GA |
Output (Rated) 1W, 16poles, 1phase DC12V |
||
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5-2. Outdoor Unit
RAS-10JACVP, RAS-13JACVP
No. |
Parts name |
Model name |
|
Rating |
|
|
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|
||
1 |
Reactor |
CH-57 |
L=10mH, 16A |
||
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||
2 |
Outside fan motor |
ICF-140-43-1 |
DC140V, 43W |
||
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3 |
Suction temp. sensor |
(Inverter attached) |
10kΩ |
(25°C) |
|
(TS sensor) |
|||||
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||
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4 |
Discharge temp. sensor |
(Inverter attached) |
62kΩ |
(20°C) |
|
(TD sensor) |
|||||
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||
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5 |
Outside air temp. sensor |
(Inverter attached) |
10kΩ |
(25°C) |
|
(TO sensor) |
|||||
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||
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||
6 |
Terminal block (6P) |
—— |
20A, AC250V |
||
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||
7 |
Compressor |
DA91A1F-45F |
3-phases 4-poles 750W |
||
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|
||
8 |
Compressor thermo. |
US-622KXTMQO-SS |
OFF: 125 ± 4°C, ON: 90 ± 5° C |
||
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||
9 |
Coil for PMV |
C12A |
DC12V |
||
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|
– 16 –
6. REFRIGERANT CYCLE DIAGRAM
6-1. Refrigerant Cycle Diagram
RAS-10JKCVP/RAS-10JACVP RAS-13JKCVP/RAS-13JACVP
P Pressure measurement
Gauge attaching port
Vacuum pump connecting port
Deoxidized copper pipe
Outer dia. : 9.52mm
Thickness : 0.8mm
T1 Temp. measurement
INDOOR UNIT
Indoor heat |
|
|
|
|
exchanger |
heightAllowable |
10m:difference |
lengthpipeAllowable |
|
Cross flow fan |
||||
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||
Deoxidized copper pipe |
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|
Outer dia. : 6.35mm |
|
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|
Thickness : 0.8mm |
|
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|
Sectional shape |
|
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|
|
of heat insulator |
|
|
|
Max. : 25m Chargeless : 15m Charge : 20g/m (16 to 25m)
TS |
|
|
Strainer |
|
|
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|
||
|
Compressor |
|
|
|
|
DA91A1F-45F |
|
|
|
TD |
|
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Muffler |
|
Pulse modulating |
|
|
TO |
valve at liquid side |
||
|
|
(SEV16RC3) |
||
|
Outdoor heat |
Split capillary |
|
|
|
exchanger |
|
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|
Ø1.5 x 200 |
|
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|
Temp. measurement |
T2 |
Ø1.5 x 200 |
|
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||
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Propeller fan |
|
|
Refrigerant amount : 0.9kg |
|
OUTDOOR UNIT |
NOTE : |
Gas leak check position |
|
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|
Refrigerant flow (Cooling) |
NOTE :
•The maximum pipe length of this air conditioner is 25 m. When the pipe length exceeds 15m, the additional charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 200g)
6-2. Operation Data
<Cooling>
Temperature |
Model |
Standard |
Heat exchanger |
|
|
Compressor |
|||
condition (°C) |
pipe temp. |
Indoor fan |
Outdoor fan |
||||||
|
|
name |
pressure |
|
|
mode |
mode |
revolution |
|
Indoor |
Outdoor |
RAS- |
P (MPa) |
T1 (°C) |
T2 (°C) |
(rps) |
|||
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||||||||
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27/19 |
35/– |
10JKCVP |
0.9 to 1.1 |
12 to 14 |
43 to 45 |
High |
High |
45 |
|
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|||
13JKCVP |
0.8 to 1.0 |
10 to 12 |
47 to 48 |
High |
High |
70 |
|||
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|
NOTES :
(1)Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent. (Thermistor themometer)
(2)Connecting piping condition : 5 m
–17 –
7. CONTROL BLOCK DIAGRAM
7-1. Indoor Unit
RAS-10JKCVP, RAS-13JKCVP
M.C.U |
Indoor Unit Control Unit |
|
|
|
Louver |
Heat Exchanger Sensor(Tc) |
Functions |
Motor |
Room Temperature Sensor(Ta) |
• 3-minute Delay at Restart for Compressor |
Louver Motor |
|
|
|
Infrared Rays Signal Receiver |
• Fan Motor Starting Control |
Drive Control |
|
||
and Indication |
|
Indoor Fan |
|
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|
|
• Processing |
Motor Control |
Initializing Circuit |
(Temperature Processing) |
|
|
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|
|
• Timer |
Indoor |
Clock Frequency |
Fan Motor |
|
Oscillator Circuit |
|
|
|
• Serial Signal Communication |
|
Power Supply |
|
Air purifier |
|
unit |
|
Circuit |
|
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|
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Converter |
|
Micro Switch |
(D.C circuit) |
|
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Noise Filter |
|
Serial Signal Transmitter/Receiver |
|
From Outdoor Unit |
|
|||
Serial Signal Communication |
||||
|
220-240V/50Hz |
|||
|
|
|||
|
220V/60Hz |
(Operation Command and Information) |
Remote Controller |
Infrared Rays, 36.7kHz |
REMOTE CONTROLLER
Operation (START/STOP)
Operation Mode Selection
AUTO, COOL, DRY, FAN only
Thermo. Setting
Fan Speed Selection
ON TIMER Setting
OFF TIMER Setting
Louver AUTO Swing
Louver Direction Setting
ECO
Hi-POWER
Air Purifier
SLEEP
– 18 –
|
For INDOOR UNIT |
|
MICRO-COMPUTER BLOCK DIAGRAM |
|
|
|
RAS |
.27- |
||||
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- |
|
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220–240 V/50Hz |
|
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|
10JACVP, |
Outdoor |
|
220 V/60Hz |
|
|
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||
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||
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|
MCC813 (P.C.B) |
|
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|
OUTDOOR UNIT |
Unit |
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RAS- |
|
|
Indoor unit |
|
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Rotor position |
|
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|
13JACVP |
(Inverter |
|
send/receive |
|
M.C.U |
|
|
detect circuit |
|
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|
||
|
circuit |
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||||
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|||
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|
• |
PWM synthesis function |
|
Rotor position |
|
|
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|
|||
|
|
• |
Input current release control |
|
detect circuit |
|
|
|
|
|
Assembly) |
|
|
Discharge |
• |
IGBT over-current detect control |
|
Gate drive |
|
|
|||||
|
temp. sensor |
• |
Outdoor fan control |
|
|
|
|
circuit |
|
|
||
|
Outdoor air |
• |
High power factor correction control |
|
Gate drive |
|
|
|||||
|
• |
Inverter output frequency control |
|
|
|
|||||||
|
temp. sensor |
|
|
circuit |
|
|
||||||
– |
|
• |
A/D converter function |
|
|
|
|
|
|
|
|
|
Suction temp. |
• |
P.M.V. control |
|
|
Over current |
|
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||
19 |
|
|
|
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|
|||||
sensor |
• |
Discharge temp. control |
|
detect circuit |
|
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|||
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|
||||
– |
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|||
|
• |
Signal communication to indoor unit |
Over current |
|
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|||||
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detect circuit |
|
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High Power |
Clock |
|
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|
|
factor Correction |
frequency |
|
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circuit |
16MHz |
|
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|
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|
|
Noise |
|
Input current |
Converter |
Over current |
|
Inverter |
Outdoor |
|
|||
|
Filter |
|
sensor |
(AC |
DC) |
sensor |
|
|
(DC |
AC) |
Fan motor |
|
|
|
|
Driver circuit |
|
|
Over current |
|
Inverter |
|
Compressor |
|
|
|
|
|
of P.M.V. |
|
|
sensor |
(DC |
AC) |
|
|
||
|
|
|
|
|
|
|
|
P.M.V : Pulse Modulating Valve
M.C.U : Micro Control Unit
P.M.V.
8. OPERATION DESCRIPTION
8-1. Outline of Air Conditioner Control |
• |
Detection of inverter input current and current |
|||||
This air conditioner is a capacity-variable type air |
|
release operation |
|||||
• Over-current detection and prevention operation |
|||||||
conditioner, which uses DC motor for the indoor fan |
|||||||
|
to IGBT module (Compressor stop function) |
||||||
motor and the outdoor fan motor. And the capacity- |
|
||||||
• |
Compressor and outdoor fan stop function |
||||||
proportional control compressor which can change |
|||||||
the motor speed in the range from 13 to 88 rps is |
|
when serial signal is off (when the serial signal |
|||||
mounted. The DC motor drive circuit is mounted to |
|
does not reach the board assembly of outdoor |
|||||
the indoor unit. The compressor and the inverter to |
|
control by trouble of the signal system) |
|||||
control fan motor are mounted to the outdoor unit. |
• |
Transferring of operation information (Serial |
|||||
The entire air conditioner is mainly controlled by the |
|
signal) from outdoor unit controller to indoor |
|||||
indoor unit controller. |
|
|
|
unit controller |
|||
The indoor unit controller drives the indoor fan motor |
• |
Detection of outdoor temperature and operation |
|||||
based upon command sent from the remote control- |
|
revolution control |
|||||
ler, and transfers the operation command to the |
(3) Contents of operation command signal (Serial |
||||||
outdoor unit controller. |
|
|
|||||
|
|
signal) from indoor unit controller to outdoor unit |
|||||
The outdoor unit controller receives operation |
|||||||
controller |
|||||||
command from the indoor unit side, and controls the |
|||||||
The following three types of signals are sent from |
|||||||
outdoor fan and the pulse modulating valve. (P.M.V) |
|||||||
Besides, detecting revolution position of the com- |
the indoor unit controller. |
||||||
pressor motor, the outdoor unit controller controls |
• |
Operation mode set on the remote control |
|||||
speed of the compressor motor by controlling output |
• |
Compressor revolution command signal defined |
|||||
voltage of the inverter and switching timing of the |
|||||||
|
by indoor temperature and set temperature |
||||||
supply power (current transfer timing) so that motors |
|
||||||
|
(Correction along with variation of room tem- |
||||||
drive according to the operation command. |
|
||||||
|
perature and correction of indoor heat ex- |
||||||
And then, the outdoor unit controller transfers |
|
||||||
|
changer temperature are added.) |
||||||
reversely the operating status information of the |
|
||||||
• |
Temperature of indoor heat exchanger |
||||||
outdoor unit to control the indoor unit controller. |
|||||||
• |
For these signals ([Operation mode] and |
||||||
As the compressor adopts four-pole |
|||||||
|
[Compressor revolution] indoor heat exchanger |
||||||
brushless DC motor, the frequency of the |
|
temperature), the outdoor unit controller |
|||||
supply power from inverter to compressor is |
|
monitors the input current to the inverter, and |
|||||
two-times cycles of the actual number of |
|
performs the followed operation within the |
|||||
revolution. |
|
|
|
range that current does not exceed the allow- |
|||
(1) Role of indoor unit controller |
|
|
|
able value. |
|||
|
|
(4) Contents of operation command signal (Serial |
|||||
The indoor unit controller judges the operation |
|||||||
signal) from outdoor unit controller to indoor unit |
|||||||
commands from the remote controller and |
|||||||
controller |
|||||||
assumes the following functions. |
|
|
|||||
|
|
The following signals are sent from the outdoor |
|||||
• |
Judgment of suction air temperature of the |
||||||
unit controller. |
|||||||
|
indoor heat exchanger by using the indoor |
||||||
|
• |
The current operation mode |
|||||
|
temp. sensor. (TA sensor) |
|
|
||||
• |
Judgment of the indoor heat exchanger tem- |
• |
The current compressor revolution |
||||
|
perature by using heat exchanger sensor (TC |
• |
Outdoor temperature |
||||
|
sensor) (Prevent-freezing control, etc.) |
||||||
|
• |
Existence of protective circuit operation |
|||||
• |
Louver motor control |
|
|
||||
|
|
|
For transferring of these signals, the indoor unit |
||||
• |
Indoor fan motor operation control |
|
|||||
|
controller monitors the contents of signals, and |
||||||
• |
LED (Light Emitting Diode) display control |
|
|||||
|
judges existence of trouble occurrence. |
||||||
• |
Transferring of operation command signal |
|
|||||
|
Contents of judgment are described below. |
||||||
|
(Serial signal) to the outdoor unit |
|
|
||||
|
|
|
• |
Whether distinction of the current operation |
|||
• |
Reception of information of operation status |
|
|||||
|
|
status meets to the operation command signal |
|||||
|
(Serial signal including outside temp. data) to |
|
|
||||
|
|
• |
Whether protective circuit operates |
||||
|
the outdoor unit and judgment/display of error |
|
|||||
• |
Air purifier operation control |
|
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|
|
When no signal is received from the outdoor |
|
(2) Role of outdoor unit controller |
|
|
|
|
unit controller, it is assumed as a trouble. |
||
Receiving the operation command signal (Serial |
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|
||||
signal) from the indoor unit controller, the outdoor |
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|
|
||||
unit performs its role. |
|
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|
||
• |
Compressor operation control |
Operations followed to |
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|
|||
• |
Operation control of outdoor |
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|
|||
judgment of serial signal |
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|
|||||
|
fan motor |
|
from indoor side. |
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|
• |
P.M.V. control |
|
|
|
– 20 –
8-2. Operation Description
Item |
Operation flow and applicable data, etc. |
Description |
|
|
|
1. Basic |
1) Operation control |
1) The operation conditions are |
operation |
Receiving the user’s operation condition setup, the opera- |
selected by the remote controller as |
|
shown in the left. |
|
|
tion statuses of indoor/outdoor units are controlled. |
|
|
|
|
Remote controller |
2) |
A signal is sent by ON button of the |
|
|
remote controller. |
|
Selection |
Control contents of remote controller |
3) |
The signal is received by a sensor of |
|
the indoor unit and processed by the |
||
of operation |
• ON/OFF (Air conditioner/Air purifier) |
|
indoor controllers as shown in the |
conditions |
• Operation select |
|
left. |
|
(AUTO/COOL/DRY/FAN ONLY) |
4) |
The indoor controller controls the |
ON/OFF |
• Temperature setup |
||
|
• Air direction |
|
indoor fan motor and louver motor. |
|
• Swing |
5) |
The indoor controller sends the |
|
• Air volume select |
||
|
|
operation command to the outdoor |
|
|
(AUTO/LOW/LOW+/MED/MED+/HIGH) |
|
|
|
|
controller, and sends/receives the |
|
|
• ECO |
|
|
|
• ON timer setup |
|
control status with a serial signal. |
|
• OFF timer setup |
6) |
The outdoor controller controls the |
|
• High power |
|
operation as shown in the left, and |
|
|
|
|
|
|
|
also controls the compressor, |
|
Indoor unit |
|
outdoor fan motor, pulse modulating |
|
|
valve. |
|
|
|
|
Signal |
Indoor unit control |
|
|
receiving |
• Command signal generating |
|
|
|
function of indoor unit operation |
|
|
Indoor unit |
• Calculation function |
|
|
(temperature calculation) |
• Indoor fan motor |
||
control |
|||
|
• Activation compensation |
• Louver motor |
|
Operation |
function of indoor fan |
|
|
• Timer function |
|
||
command |
|
||
• Indoor heat exchanger |
|
||
|
|
||
Serial signal |
release control |
|
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|
||
send/receive |
|
|
|
|
Outdoor unit |
~ |
Serial signal |
|
Outdoor unit control |
|
|
|
• Compressor |
||
|
Inverter |
|
||||||
send/receive |
|
• Frequency control of inverter output |
|
• Outdoor fan motor |
||||
|
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|
|||||
|
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|
|
• Waveform composite function |
|
|
|
• Pulse modulating valve (PMV) |
|
|
|
|
|
||||
Outdoor unit |
|
• Calculation function |
|
|
|
|
||
control |
|
|
(Temperature calculation) |
|
|
|
|
•AD conversion function
•Delay function of compressor reactivation
•Current release function
•GTr over-current preventive function
|
2) Cooling operation |
|
|
1) Receiving the operation ON signal of |
|||
|
|
The operations are performed in the following parts by |
|
the remote controller, the cooling |
|||
|
|
|
operation signal starts being |
||||
|
|
controls according to cooling conditions. |
|
||||
|
|
|
transferred form the indoor controller |
||||
|
|
|
|
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|
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|
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|
|
|
to the outdoor unit. |
|
|
Operation ON |
|
Setup of remote controller |
|||
|
|
|
|
2) At the indoor unit side, the indoor fan |
|||
|
|
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|
||
|
|
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|
|
|
|
is operated according to the con- |
|
|
|
|
|
|
|
tents of “2. Indoor fan motor control” |
|
|
Indoor unit |
|
Indoor fan motor control |
|||
|
|
|
|
and the louver according to the |
|||
|
|
control |
|
Louver control |
|
||
|
|
|
|
|
|
|
contents of “9. Louver control”, |
|
|
|
|
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|
||
|
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|
|
respectively. |
|
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|
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|
||
|
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|
|
3) The outdoor unit controls the |
|
|
Sending of |
|
|
|
||
|
|
operation |
|
|
|
outdoor fan motor, compressor, |
|
|
|
command signal |
|
|
|
pulse modulating valve according to |
|
|
|
|
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|
|
|
|
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|
|
|
the operation signal sent from the |
|
|
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|
|
|
|
indoor unit. |
|
|
|
|
|
Compressor revolution control |
||
|
|
Outdoor unit |
|
|
|
||
|
|
|
Outdoor fan motor control |
|
|
||
|
|
control |
|
|
|
||
|
|
|
Pulse modulating valve control |
|
|
||
|
|
|
|
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|
|
– 21 –
Item |
Operation flow and applicable data, etc. |
|
Description |
|
|
|
|
1. Basic operation |
3) AUTO operation |
1) |
Detects the room temperature |
|
Selection of operation mode |
|
(Ta) when the operation started. |
|
2) |
Selects an operation mode from |
|
|
As shown in the following figure, the operation starts by |
||
|
|
Ta in the left figure. |
|
|
selecting automatically the status of room temperature |
|
|
|
|
|
|
|
(Ta) when starting AUTO operation. |
3) |
Fan operation continues until an |
|
|
|
operation mode is selected. |
|
|
4) |
If the status of compressor-OFF |
|
|
|
continues for 15 minutes the |
|
|
|
room temperature after selecting |
|
|
|
an operation mode, reselect an |
|
|
|
operation mode. |
Ta
|
Cooling operation |
|
|||
Ts + 1 |
|
|
|
||
Monitoring (Fan) |
|
||||
|
|
||||
Ts |
|
||||
*1. When reselecting the operation mode, the fan speed is |
|
||||
controlled by the previous operation mode. |
|
||||
|
|
|
|
|
|
4) DRY operation |
1) Detects the room temperature |
||||
DRY operation is performed according to the difference |
(Ta) when the DRY operation |
||||
started. |
|||||
between room temperature and the setup temperature as |
|||||
|
|||||
shown below. |
2) Starts operation under conditions |
||||
In DRY operation, fan speed is controlled in order to |
in the left figure according to the |
||||
temperature difference between |
|||||
prevent lowering of the room temperature and to avoid air |
|||||
the room temperature and the |
|||||
flow from blowing directly to persons. |
|||||
setup temperature (Tsc). |
|||||
|
|
|
|
||
|
|
|
|
Setup temperature (Tsc) = |
|
|
|
|
|
Set temperature on remote |
|
|
|
|
|
controller (Ts) + (0.0 to 1.0) |
|
[˚C] |
3) When the room temperature is |
||||
Ta |
|
|
lower 1°C or less than the setup |
||
|
|
|
|
temperature, turn off the com- |
|
|
|
L– (W5) |
|
pressor. |
|
|
|
|
|
||
+1.0 |
|
(W5+W3) / 2 |
|
|
|
|
|
|
|
||
+0.5 |
|
|
|
|
|
|
|
SL (W3) |
|
|
|
Tsc |
|
|
|
||
|
|
|
|
|
|
|
|
Fan speed |
|
– 22 –
Item |
|
Operation flow and applicable data, etc. |
|
Description |
||
|
|
|
|
|
|
|
2. Indoor fan |
<In cooling operation> |
|
|
|
||
motor control |
(This operation controls the fan speed at indoor unit side.) |
|
* Symbols |
|
||
|
The indoor fan (cross flow fan) is operated by the phase- |
UH |
: Ultra High |
|
||
|
H |
: High |
|
|||
|
control induction motor. The fan rotates in 5 stages in |
|
||||
|
M+ |
: Medium+ |
|
|||
|
MANUAL mode, and in 5 stages in AUTO mode, respec- |
|
||||
|
M |
: Medium |
|
|||
|
tively. (Table 1) |
|
||||
|
L+ |
: Low+ |
|
|||
|
|
|
|
|
||
|
|
|
|
L |
: Low |
|
|
|
|
|
L- |
: Low– |
|
|
|
|
|
UL |
: Ultra Low |
|
|
|
|
|
|
||
|
|
COOL ON |
|
SUL |
: Super Ultra Low |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
* The fan speed broadly varies due |
Fan speed setup |
MANUAL |
|
to position of the louver, etc. |
|
The described value indicates one |
||
|
|
(Fig. 1) |
under condition of inclining |
|
|
|
downward blowing. |
AUTO |
Indication |
Fan speed |
1) When setting the fan speed to L, |
|
|
||
|
L |
W6 |
|
|
L+, M, M+ or H on the remote |
||
|
L+ |
(L + M) / 2 |
controller, the operation is |
|
M |
W9 |
performed with the constant |
|
speed shown in Fig. 1. |
||
|
|
|
|
|
M+ |
(M + H) / 2 |
2) When setting the fan speed to |
|
|
|
|
|
H |
WC |
AUTO on the remote controller, |
|
|
|
revolution of the fan motor is |
|
|
(Fig. 2) |
controlled to the fan speed level |
|
|
shown in Fig. 2 and Table 1 |
|
|
|
|
|
|
|
|
according to the setup tempera- |
|
Fan speed AUTO |
|
ture, room temperature, and heat |
Ta |
|
exchanger temperature. |
|
|
|
||
[˚C] |
|
|
|
+2.5 |
|
M+(WB) |
|
|
|
|
|
+2.0 |
a |
*3 |
*3 : Fan speed = |
|
|
(M + –L) x 3/4 + L |
|
|
|
|
|
+1.5 |
b |
*4 |
*4 : Fan speed = |
|
|
(M + –L) x 2/4 + L |
|
|
|
|
|
+1.0 |
c |
*5 |
*5 : Fan speed = |
|
|
|
(M + –L) x 1/4 + L |
+0.5 |
d |
L(W6) |
(Linear approximation |
|
|
||
|
|
from M+ and L) |
|
|
e |
|
|
Tsc |
|
|
|
|
|
(Table 1) |
Indoor fan air flow rate |
|
|
||
|
|
|
|
|
|
|
|
|
|
Fan speed |
|
|
|
RAS-10JKCVP |
RAS-13JKCVP |
||
|
COOL |
DRY |
|
|
|
|
|
|
|
Fan speed |
Air flow rate |
Fan speed |
Air flow rate |
||||
|
level |
|
||||||
|
|
|
|
|||||
|
|
|
|
|
(rpm) |
(m3/h) |
(rpm) |
(m3/h) |
|
|
|
|
|
|
|
|
|
|
WF |
|
|
|
1630 |
684 |
1650 |
694 |
|
WE |
|
|
|
1480 |
609 |
1530 |
634 |
|
WD |
UH |
|
|
1400 |
569 |
1440 |
589 |
|
WC |
H |
|
|
1350 |
544 |
1390 |
564 |
|
WB |
M+ |
|
|
1200 |
468 |
1240 |
488 |
|
WA |
|
|
|
1110 |
423 |
1150 |
443 |
|
W9 |
M |
|
|
980 |
358 |
1010 |
373 |
|
W8 |
|
|
|
830 |
283 |
860 |
298 |
|
W7 |
L+ |
L+ |
|
810 |
273 |
810 |
273 |
|
W6 |
L |
L |
|
810 |
273 |
810 |
273 |
|
W5 |
L– |
L– |
|
780 |
257 |
780 |
257 |
|
W4 |
UL |
UL |
|
700 |
217 |
700 |
217 |
|
W3 |
SUL |
SUL |
|
550 |
142 |
550 |
142 |
|
W2 |
|
|
|
400 |
67 |
400 |
67 |
|
W1 |
|
|
|
400 |
67 |
400 |
67 |
|
|
|
|
|
|
|
|
|
– 23 –
Item |
|
Operation flow and applicable data, etc. |
Description |
||
|
|
|
|
|
|
3. Outdoor fan |
The blowing air volume at the outdoor unit side is controlled. |
1) The operation command sent |
|||
motor control |
Receiving the operation command from the controller of |
from the remote controller is |
|||
|
processed by the indoor unit |
||||
|
indoor unit, the controller of outdoor unit controls fan speed. |
||||
|
controller and transferred to the |
||||
|
* For the fan motor, a DC motor with non-stage variable |
||||
|
controller of the outdoor unit. |
||||
|
|
speed system is used. However, it is limited to 8 stages for |
|||
|
|
2) When strong wind blows at |
|||
|
|
reasons of controlling. |
|||
|
|
outdoor side, the operation of air |
|||
|
|
|
|
|
|
|
|
|
|
|
conditioner continues with the |
|
|
Air conditioner ON |
|
fan motor stopped. |
|
|
|
(Remote controller) |
|
3) Whether the fan is locked or not |
|
|
|
|
|
|
|
|
|
|
|
|
is detected, and the operation of |
|
|
|
|
|
air conditioner stops and an |
|
|
Indoor unit controller |
|
||
|
|
|
alarm is displayed if the fan is |
||
|
|
|
|
|
locked. |
1) Outdoor unit |
|
|
|
4) According to each operation |
|
|
|
mode, by the conditions of |
|
operation command |
|
|
outdoor temperature(To) and |
|
(Outdoor fan control) |
|
|
||
|
|
compressor revolution, the speed |
||
|
|
|
|
|
|
|
|
|
of the outdoor fan shown in the |
2) Fan speed |
400 |
YES |
OFF status of |
table is selected. |
|
||||
when the motor stopped. |
|
fan motor continues. |
|
|
NO |
|
|
|
|
Fan motor ON |
|
|
|
|
3) Fan lock |
|
YES |
Air conditioner |
Alarm |
|
|
OFF |
display |
|
|
|
|
||
NO |
|
|
|
|
4) Motor operates as shown in the table below.
In cooling operation
Compressor speed (rps) |
~13.8 |
~34.7 |
35.4~ MAX |
|||
|
|
|
|
|
|
|
|
To |
38˚C |
f 7 |
f 4 |
f 3 |
|
|
|
|
|
|
||
To |
To < 38˚C |
f 7 |
f 5 |
f 4 |
||
|
|
|
|
|
||
|
To < 15˚C |
f 8 |
f 8 |
f 8 |
||
|
|
|
|
|
|
|
During |
To |
38˚C |
f 7 |
f 5 |
f 4 |
|
|
|
|
|
|
||
To < 38˚C |
f 7 |
f 7 |
f 5 |
|||
ECO mode |
||||||
|
|
|
|
|
||
|
To < 15˚C |
f 8 |
f 8 |
f 8 |
||
|
|
|
|
|
||
When To is abnormal |
f 5 |
f 5 |
f 4 |
Outdoor fan speed (rpm)
Tap |
RAS-10JACVP |
RAS-13JACVP |
|
|
|
f 1 |
— |
— |
|
|
|
f 2 |
— |
— |
|
|
|
f 3 |
750 |
840 |
|
|
|
f 4 |
750 |
840 |
|
|
|
f 5 |
700 |
700 |
|
|
|
f 6 |
650 |
650 |
|
|
|
f 7 |
390 |
390 |
|
|
|
f 8 |
390 |
390 |
|
|
|
– 24 –
Item |
|
Operation flow and applicable data, etc. |
Description |
||||||
|
|
|
|
|
|
|
|
|
|
4. Capacity |
The cooling capacity depending on the load is adjusted. |
1) The difference between set |
|||||||
control |
According to difference between the setup value of tempera- |
temperature on remote controller |
|||||||
|
(Ts) and room temperature (Ta) |
||||||||
|
ture and the room temperature, the capacity is adjusted by |
||||||||
|
is calculated. |
||||||||
|
the compressor revolution. |
|
|
|
|
|
|||
|
|
|
|
|
|
2) According to the temperature |
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
difference, the correction value of |
|
|
Remote controller |
|
|
Indoor unit |
Hz signal which determines the |
|||
|
|
|
|
|
|
|
|
|
compressor speed is set up. |
|
|
Set temp. (Ts) |
|
|
Room temp. (Ta) |
|
|||
|
|
|
|
|
3) The rotating position and speed |
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
of the motor are detected by the |
|
|
|
|
Ts |
–Ta |
electromotive force occurred on |
|||
|
|
|
|
the motor winding with operation |
|||||
|
|
|
|
|
|
|
|
|
of the compressor. |
|
|
|
|
|
|
|
|
|
|
|
Correction of Hz signal |
4) According to the difference |
||
|
resulted from comparison of the |
|||
|
|
|
|
|
|
|
|
|
correction value of Hz signal with |
|
Detection of electromotive force |
the present operation Hz, the |
||
|
of compressor motor winding |
inverter output and the commuta- |
||
|
|
|
|
tion timing are varied. |
|
Detection of motor speed |
5) Change the compressor motor |
||
|
speed by outputting power to the |
|||
|
|
and rotor position |
||
|
|
|
|
compressor. |
|
Correction value of Hz |
* The contents of control opera- |
||
|
tion are same in cooling |
|||
|
signal |
Operating Hz |
||
|
|
|
|
operation and heating opera- |
|
Inverter output change |
tion |
||
|
|
|||
|
Commutation timing change |
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Change of compressor speed |
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5. Current release |
This function prevents troubles on the electronic parts of the |
1) The input current of the outdoor |
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compressor driving inverter. |
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unit is detected in the inverter |
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This function also controls drive circuit of the compressor |
section of the outdoor unit. |
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speed so that electric power of the compressor drive circuit |
2) According to the detected |
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does not exceed the specified value. |
outdoor temperature, the |
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specified value of the current is |
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selected. |
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Outdoor unit inverter main |
Outdoor temp. To |
3) Whether the current value |
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circuit control current |
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exceeds the specified value or |
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Setup of current release point |
not is judged. |
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4) If the current value exceeds the |
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specified value, this function |
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Operating current |
High |
reduces the compressor speed |
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and controls speed up to the |
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Setup value |
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Reduce compressor speed |
closest one commanded from the |
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Low |
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indoor unit within the range |
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Current decrease |
which does not exceed the |
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specified value. |
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Capacity control continues. |
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Outdoor temp. |
Cooling current release value |
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45˚C |
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5.62A |
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40˚C |
44˚C |
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16˚C |
39˚C |
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11˚C |
15.5˚C |
9.00A |
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10.5˚C |
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– 25 –
Item |
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Operation flow and applicable data, etc. |
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6. Release |
<In cooling/dry operation> |
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protective |
(Prevent-freezing control for indoor heat exchanger) |
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control by |
In cooling/dry operation, the sensor of indoor heat exchanger detects |
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temperature |
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evaporation temperature and controls the compressor speed so that |
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of indoor heat |
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temperature of the heat exchanger does not exceed the specified |
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exchanger |
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value. |
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temperature |
7˚C |
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When the value is |
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Usual cooling capacity control |
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R |
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exchanger |
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P |
in Q zone, the |
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Q |
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compressor speed |
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6˚C |
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is kept. |
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heat |
5˚C |
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Indoor |
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Reduction of compressor speed |
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7. Louver control |
This function controls the air direction of the indoor unit. |
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1) Louver |
• The position is automatically controlled according to the operation |
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position |
mode (COOL). |
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•The set louver position is stored in memory by the microcomputer, and the louver returns to the stored position when the next operation is performed. (Cooling memory position)
The angle of the louver is indicated as the horizontal angle is 0°.
When the louver closes fully, it directs approx. 49° upward.
1) Louver position in cooling operation
Horizontal
Louver (0˚) angle
Cooling operation/ |
Powerful |
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Room temp. (Ta) < |
Room temp. (Ta) |
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AUTO (COOL)/Dry |
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Set temp. (Tsc) + 3.5 |
Set temp. (Tsc) + 3.5 |
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Initial setting of |
Initial setting of |
“Inclined blowing” |
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“Cooling storage position” |
“Cooling storage position” |
Louver : |
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Louver : |
Louver : |
Directs downward (14˚) |
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Directs downward (9˚) |
Directs downward (9˚) |
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2) Air direction |
Air direction |
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adjustment |
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Horizontal |
Inclined |
Blowing |
Inclined |
Horizontal |
blowing |
blowing |
downward |
blowing |
blowing |
3) Swing |
• Swing operation is performed in width 35° with the stop position as |
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the center. |
•If the stop position exceeds either upper or lower limit position, swing operation is performed in width 35° from the limit which the
stop position exceeded.
Description
1)When temperature of the indoor heat exchanger drops below 5°C, the compressor speed is reduced. (P zone)
2)When temperature of the indoor heat exchanger rises in the range from 6°C to under 7°C, the compressor speed is kept. (Q zone)
3)When temperature of the indoor heat exchanger rises to 7°C or higher, the capacity control operation returns to the usual control in cooling operation. (R zone)
Cooling/AUTO
(COOL)/DRY operation
Cooling NO Powerful memory operation position
YES YES Room temp.
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Set temp. +3.5 |
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NO |
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Cooling |
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Inclined |
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memory |
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blowing |
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position |
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YES Room temp. |
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NO |
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Set temp. +3.5 |
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•The louver position can be arbitrarily set up by pushing [FIX] button.
•Swing
When pushing [SWING] button during operation, the louver starts swinging.
– 26 –