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FILE NO. A04-015
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
RAS-B10EKVP-E, RAS-B13EKVP-E
/RAS-M14EAV-E
RAS-M10EKCVP-E, RAS-M13EKCVP-E
/RAS-M14EACV-E
RAS-B10EKVP-E, RAS-B13EKVP-E,
RAS-B16EKVP-E/RAS-M18EAV-E
RAS-M10EKCVP-E, RAS-M13EKCVP-E,
RAS-M16EKCVP-E/RAS-M18EACV-E
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CONTENTS 1. SAFETY PRECAUTIONS............................................................................ 3 2. SPECIFICATIONS........................................................................................ 5 3. REFRIGERANT R410A ............................................................................. 12 4. CONSTRUCTION VIEWS ......................................................................... 20 5. WIRING DIAGRAM...........................................................
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1. SAFETY PRECAUTIONS For general public use 2 Power supply cord of outdoor unit shall be more than 1.5 mm (H07RN-F or 245IEC66) polychloroprene sheathed flexible cord. Read this “SAFETY PRECAUTIONS” carefully before servicing. The precautions described below include the important items regarding safety. Observe them without fail. After the servicing work, perform a trial operation to check for any problem. Turn off the main power supply switch (or breaker) before the unit maintenance. C
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WARNING Never modify this unit by removing any of the safe ty guards or by-pass any of the safety interlock switches. Do not install in a place which cannot bear the weight of the unit. Personal injury and property damage can result if the unit falls. After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may generate. The electrical work must be performed by a qua
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2. SPECIFICATIONS The indoor and outdoor units that can be used in combination are shown in the tables below. Table of models that can be connected Type Outdoor unit Indoor unit RAS-B10EKVP–E RAS-B13EKVP–E RAS-M14EAV–E RAS-M10UKV–E3 RAS-M13UKV–E3 RAS-M10YDV–E RAS-M13YDV–E Heat pump RAS-B10EKVP–E RAS-B13EKVP–E RAS-B16EKVP–E RAS-M18EAV–E RAS-M10UKV–E3 RAS-M13UKV–E3 RAS-M16UKV–E3 RAS-M10YDV–E RAS-M13YDV–E RAS-M16YDV–E RAS-M10EKCVP–E RAS-M13EKCVP–E RAS-M14EACV–E RAS-M10UKCV–E3 RAS-M13UKCV–E3 RAS-M1
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2-1-1 Specifications Heat pump models Unit model Indoor RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-E Outdoor RAS-M14EAV-E RAS-M18EAV-E Cooling Capacity (kW) 4.0 5.2 Cooling Capacity range (kW) 1.4 - 4.5 1.4 - 6.2 Heating Capacity (kW) 4.4 6.7 Heating Capacity range (kW) 0.9 - 5.2 0.9 - 8.5 Power supply 220~240V-1Ph-50Hz / 220V-1Ph-60Hz Electric Indoor Unit model RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E(*1) charactaristics (220V/230V/ Runnning Current (A) 0.15 0.15 0.15 240V) Power Consumption (W
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2-1-2 Specifications Cooling-only models Unit model Indoor RAS-M10EKCVP-E, RAS-M13EKCVP-E, RAS-M16EKCVP-E Outdoor RAS-M14EACV-E RAS-M18EACV-E Cooling Capacity (kW) 4.0 5.2 Cooling Capacity range (kW) 1.4 - 4.5 1.4 - 6.2 Heating Capacity (kW) – – Heating Capacity range (kW) –– Power supply 220~240V-1Ph-50Hz / 220V-1Ph-60Hz Electric Indoor Unit model RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E(*1) charactaristics (220V/230V/ Runnning Current (A) 0.15 0.15 0.15 240V) Power Consumption (W) 30 30 3
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2-2 Performance specifications combinations of indoor unit RAS-M14EAV-E, RAS-M14EACV-E Volts Operating indoor unit Unit capacity (kW) Capacity (kW) Running current Power Consumption Operation Operation Mode Status VA B A B kW A W 10 – 2.5 – 2.5 (1.1 to 3.2) 3.05 (1.10 to 4.30) 570 (170 to 880) 1 unit 13 – 3.5 – 3.5 (1.1 to 3.8) 5.26 (1.10 to 6.06) 1100 (170 to 1280) 220 10 10 1.95 1.95 3.9 (1.4 to 4.4) 5.12 (1.49 to 6.11) 1070 (230 to 1290) 2 units 13 10 2.33 1.67 4.0 (1.4 to 4.5) 5.17
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RAS-M18EAV-E , RAS-M18EACV-E Volts Operating indoor unit Unit capacity (kW) Capacity (kW) Running current Power Consumption Operation Operation mode Status V A B A B kW A W 10 – 2.7 – 2.7 (1.1 to 3.2) 3.03 (1.43 to 3.83) 600 (220 to 800) 1 unit 13 – 3.7 – 3.7 (1.1 to 4.2) 5.10 (1.43 to 6.49) 1100 (220 to 1400) 16 – 4.5 – 4.5 (1.1 to 4.9) 6.96 (1.43 to 7.88) 1500 (220 to 1700) 220 10 10 2.55 2.55 5.1 (1.4 to 6.1) 7.19 (1.69 to 9.97) 1550 (260 to 2150) 13 10 2.85 2.35 5.2 (1.4 to 6.2) 7.
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2-2-1. Operation Characteristic Curve RAS-M14EAV-E, RAS-M14EACV-E RAS-M14EAV-E 8 8 7 7 6 6 Conditions Indoor : DB 20˚C 5 5 Outdoor : DB 7˚C/WB 6˚C Air flow : High Pipe length : 7.5m x 2 2 units operating 4 4 230V 3 3 2 2 Conditions Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C Air flow : High 1 1 Pipe length : 7.5m x 2 2 units operating 230V 0 0 01020304050607080 90 01020304050607080 90 Compressor speed (rps) Compressor speed (rps) 2-2-2. Capacity Variation Ratio According
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2-2-3. Operation Characteristic Curve RAS-M18EAV-E, RAS-M18EACV-E RAS-M18EAV-E 12 12 11 11 10 10 Conditions Indoor : DB 27˚C/WB 19˚C 9 9 Outdoor : DB 35˚C Air flow : High 8 8 Pipe length : 7.5m x 2 2 units operating 7 7 230V 6 6 5 5 4 4 Conditions Indoor : DB 20˚C 3 3 Outdoor : DB 7˚C/WB 6˚C Air flow : High 2 2 Pipe length : 7.5m x 2 2 units operating 1 1 230V 0 0 01020304050607080 90 020406080100 120 140 Compressor speed (rps) Compressor speed (rps) 2-2-4. Capacity Var
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3. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC (6) When an air conditioning system charged with a (R410A) which does not damage the ozone layer. large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, The working pressure of the new refrigerant R410A is even when refrigerant leaks, its concentration 1.6 times higher than conventional refrigerant (R22). does not exceed the marginal level. The refrigerating oil is also changed
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Table 3-2-1 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 b) Socket Joints For copper pipes, flare joints or socket joints are Socket joints are such that they are brazed used. Prior to use, be sure to remove all contami- for connections, and used mainly for thick nants. pipings whose diameter is larger than 20 mm. a) Flare Joints Thicknesses of socket jo
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d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. ØD A By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R410A or conven- tional 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 Fig. 3-2-1 Flare processing dimensions adjustment. Table 3-2-3 Dimensions related to flare processing for R4
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43˚ to 45˚ Table 3-2-6 Flare and flare nut dimensions for R22 Outer Dimension (mm) Flare nut Nominal Thickness diameter width diameter (mm) (mm) AB CD (mm) 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 B A D C Fig. 3-2-2 Relations between flare nut and flare seal surface (2) Flare Connecting Procedures and Precautions When it is strong, the flare nut may crack and may be m
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3-3. Tools 3-3-1. 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. A
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3-4. 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. 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. Connect the charge hose to packed valve service port at the outdoor unit’s gas side. Keep the st
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(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 ] Ga
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(2) Characteristics required for flux 3-5-3. Brazing Activated temperature of flux coincides with As brazing work requires sophisticated techniques, the brazing temperature. experiences based upon a theoretical knowledge, it must be performed by a person qualified. Due to a wide effective temperature range, flux is hard to carbonize. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to It is easy to remove slag after brazing. proceed wit
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4. CONSTRUCTION VIEWS 4-1. Indoor Unit RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E Parts WH-H03JE name of (Heat pump remote model) control WC-H03JE (Cooling-only model) – 20 –
