00_CV_3P435164-5K.fm Page 1 Wednesday, August 8, 2018 10:22 AM INSTALLATION MANUAL SPLIT SYSTEM Air Conditioners MODELS RZQ18TAVJU RZQ24TAVJU RZQ30TAVJU RZQ36TAVJU RZQ42TAVJU RZQ48TAVJU English RZR18TAVJU RZR24TAVJU RZR30TAVJU RZR36TAVJU RZR42TAVJU RZR48TAVJU Read these instructions carefully before installation. Keep this manual in a handy place for future reference. This manual should be left with the equipment owner. Lire soigneusement ces instructions avant l’installation.
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[5] [6] L H L [7] 4 or (100 mo ) re 4 or (100 mo ) re [8] 0) (50 s 20 r les o 40 (1000) or more H inch (mm) 40 (1000) or more L H H L 4( 10 A ) 00 (15 re 60 r mo o A 0) 00 (1 ore 0 4 rm o 4 or m(100 ore ) H L 0) 10 re 4 ( r mo ) 00 o (5 ore 20 r m o L>H 0) (50 s 20 r les o 0) (50 s 20 r les o 0) or mo re 18·24 type 0) A 00 (1 ore 0 4 or m ) 00 (15 re 60 r mo o 30~48 type figure 8 [1] 4 or (100) mo re ) 00 (10 re 40 r mo o 4 or (100) mo re [2] 13/16 (20) 0) 10 4 ( m
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01_EN_3P435164-5K.fm Page 1 Tuesday, August 21, 2018 2:02 PM SPLIT SYSTEM CONTENTS 1. SAFETY CONSIDERATIONS ..................................................1 2. INTRODUCTION......................................................................2 2-1. Standard operation limit ....................................................3 2-2. Standard supplied accessories .........................................3 3. BEFORE INSTALLATION ........................................................3 4.
01_EN_3P435164-5K.fm Page 2 Tuesday, August 21, 2018 2:02 PM • When installing or relocating the system, keep the refrigerant circuit free from substances other than the specified refrigerant (R410A) such as air. Any presence of air or other foreign substance in the refrigerant circuit can cause an abnormal pressure rise or rupture, resulting in injury. • Do not change the setting of the protection devices.
01_EN_3P435164-5K.fm Page 3 Tuesday, August 21, 2018 2:02 PM 2-1 Standard operation limit 3. Normal operation The figures below assume following operating conditions for indoor and outdoor units: Equivalent pipe length .................................................. 25 ft. (7.6 m) Level difference.................................................................. 0 ft. (0 m) As shown in figure 2, move the unit slowly.
01_EN_3P435164-5K.fm Page 4 Tuesday, August 21, 2018 2:02 PM • In areas where the outside air temperature drops below 32°F (0°C) for more than 12 hours continuously, install a drain-pan heater (optional accessory) on the bottom frame to prevent the drain from freezing. • An optional drain pan heater is available when the unit is installed in a climate where the drain may freeze. • The installer should use their local knowledge to determine if this accessory is necessary to prevent the drain from freezing.
01_EN_3P435164-5K.fm Page 5 Tuesday, August 21, 2018 2:02 PM When something is obstructing the top 1. Installation of single unit (Refer to figure 8-[7]) Relation of dimensions of H, A, and L are shown in the table below. inch (mm) LH L A 0 < L 1/2H 4 (100) 1/2H < L H 8 (200) Set the frame to be L H H
01_EN_3P435164-5K.fm Page 6 Tuesday, August 21, 2018 2:02 PM 6. REFRIGERANT PIPING 6-3 Protection against contamination when installing pipes CAUTION • Do not allow anything other than the designated refrigerant to get mixed into the refrigerant cycle, such as air, nitrogen, etc. If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly right away. • Use R410A only when adding refrigerant. 6-1 Installation tools • Cover the ends of pipe to prevent moisture, dirt, dust, etc.
01_EN_3P435164-5K.fm Page 7 Tuesday, August 21, 2018 2:02 PM • After knocking out the knockout, it is recommended to apply repair paint to the edge and the surrounding end surfaces to prevent rusting. (Refer to figure 18) 1. Bottom frame 2. Field piping Table 1 R0.016~0.031 (0.4~0.8 mm) 2° 3/8” 24.1~29.4 0.504~0.520 (9.5 mm) (32.7~39.9 N·m) (12.8~13.2 mm) Flare shape (in.) A A dimensions for processing flares (in.
01_EN_3P435164-5K.fm Page 8 Tuesday, August 21, 2018 2:02 PM (Refer to figure 21) 1. Decompression valve 2. Nitrogen 3. Vacuum pump 4. Valve (Open) 5. Charge hose 6. Stop valve service port 7. Indoor unit 8. Gas line stop valve (Close) 9. Liquid line stop valve (Close) 10. Indicates local procurement 11. Outdoor unit Precautions for handling valve cap • A seal is attached to the point indicated by the arrow. Take care not to damage it.
01_EN_3P435164-5K.fm Page 9 Tuesday, August 21, 2018 2:02 PM (Refer to figure 23) 1. Stop valve fixing plate 2. Power supply wiring (including ground wire) or transmission wiring. 3. Back of unit 4. Knockout 5. Side of unit 6. Front of unit 7. Terminal block 8. Control Box CAUTION • Use a conduit for field wiring. • Outside the unit, make sure the low voltage wiring (i.e. for the remote controller wire, between units, etc.
01_EN_3P435164-5K.fm Page 10 Tuesday, August 21, 2018 2:02 PM CAUTION • The wiring should be selected in compliance with local specifications. See the table above. • Always turn off the power before doing wiring work. • Grounding should be done in compliance with local laws and regulations. • As shown in figure 25, when connecting the power supply wiring to the power supply terminal block, be sure to clamp securely.
01_EN_3P435164-5K.fm Page 11 Tuesday, August 21, 2018 2:02 PM 10-1 Power On–Check Operation (Refer to figure 26) 1. R410A Tank (Siphon system) 2. Measuring instrument 3. Valve A 4. Indoor unit 5. Stop valve service port 6. Gas line stop valve 7. Outdoor unit 8. Liquid line stop valve Valve A Liquid line stop valve Gas line stop valve Before starting to charge the refrigerant Close Close Close During charging of the refrigerant Open Close Close State of valve A and the stop valve 3.
01_EN_3P435164-5K.fm Page 12 Tuesday, August 21, 2018 2:02 PM 10-2 Temperature control operation checklist • After check operation is complete, check the temperature control using normal operation. (Heating is not possible if the outdoor temperature is 75°F (24°C) or higher.) (1) Make sure the indoor and outdoor units are operating normally.
01_EN_3P435164-5K.fm Page 13 Tuesday, August 21, 2018 2:02 PM 11-1 Three main operation methods are available: • Basic The refrigerant temperature is fixed independent from the situation. It corresponds to the standard operation which is known and can be expected from/under previous systems: • To activate this operation method under cooling operation: change field setting [2-8]=2. • To activate this operation method under heating operation: change field setting [2-9]=2.
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01_EN_3P435164-5K.fm Page 15 Tuesday, August 21, 2018 2:02 PM 11-3 Setting of Heat Pump Lockout and Emergency Heat Mode Heat pump is locked out when the setting below and/or external input to ABC terminal has been made. Setting item display No.
01_EN_3P435164-5K.fm Page 16 Tuesday, August 21, 2018 2:02 PM Heat pump lockout temperature Heat pump would be locked out when the outdoor ambient temperature is smaller than the heat pump lockout temperature. This setting is only effective when heat pump lockout mode has been set. And should make the field setting of indoor unit. Refer to Service Manual for details. Setting item display No.
01_EN_3P435164-5K.fm Page 17 Tuesday, August 21, 2018 2:02 PM 12. CAUTION FOR REFRIGERANT LEAKS (Points to note in connection with refrigerant leaks) Introduction The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. 4. Dealing with the situations where the result exceeds the maximum concentration level.
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