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34

WARNING

Loose wiring may cause the terminal to overheat or result in unit malfunction. 
A fire hazard may also exist. 
Therefore, ensure that all wiring is tightly connected.

When connecting each power wire to the terminal, follow the instructions on “How to Connect Wiring to Terminal” and fasten the wire 
securely with the fixing screw of the terminal board.

4-4. Connecting Multiple Indoor Units to a Single Solenoid Valve Kit

●

  It is possible to connect plural indoor units to one solenoid valve kit. The indoor units can be controlled individually or be operated as 

a group.

●

  It is possible to adopt plural indoor units with a common use of the solenoid valve kit per piece of refrigerant.

●

  Categories of connected indoor unit capacities are determined by the solenoid valve kit.

Type of solenoid valve kit

Total capacity of indoor units (kW)

CZ-P160HR3

5.6 < Total capacity 

≤

 16.0

CZ-P56HR3

Total capacity 

≤ 

5.6

* If the capacity range is exceeded, use two solenoid valves connected in parallel.

Each Method (General) and Conditions

Method 1

Method 2

Method 3

Method

Connecting one indoor unit with 

one solenoid valve kit

Group control is possible by 

connecting plural indoor units to 

one solenoid valve kit.

Indoor units can operate individually 

by connecting plural indoor units to 

one solenoid valve kit. 

Connectable number 

of remote controls

1 piece

1 piece

Over 2 pieces

Possible operating 

functions

Individual control

Group control 

* 

 Thermostat On/Off function 

is possible only in individual 

control (when selecting the body 

thermostat).

Individual control available

* 

 Mixed group control available

Possible operating 

modes

Cool, Dry, Heating, Auto, Fan

Cool, Dry, Heating, Auto, Fan

Cooling, Dry, Heating, Fan

*  Auto selection is impossible.

Condition

–

•   Mixed cooling and heating is 

impossible.

•   Mixed cooling and heating is 

impossible.

•

 

  Auto selection is impossible.

Method 1

Indoor unit

Method 1

Indoor unit

Indoor unit

Method 2

Indoor unit

Method 3

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Method 3

Solenoid 

valve kit

Remote 

controller

Solenoid 

valve kit

Remote 

controller

Solenoid 

valve kit

Solenoid 

valve kit

Remote 

controller

Indoor unit

Solenoid 

valve kit

Remote 

controller

Remote 

controller

Solenoid 

valve kit

Remote 

controller

Remote 

controller

Remote 

controller

00_341136_2WAY_Eng.indb   34

2022/9/19   9:27:27

Содержание U-8MF3R7

Страница 1: ...1E5 S 56MR1E5 Z1 Slim Type Ducted S 22MZ1H4A S 28MZ1H4A S 36MZ1H4A S 45MZ1H4A S 56MZ1H4A S 60MZ1H4A Type Indoor Unit Type Rated Capacity 71 73 90 106 112 140 160 D1 1 Way Cassette S 73MD1E5 L1 2 Way C...

Страница 2: ...are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sales service outlet or your certified dealer for additional instructions...

Страница 3: ...airing refrigeration parts Handle liquid refrigerant carefully as it may cause frostbite When Transporting It may need two or more people to carry out the installation work Be careful when picking up...

Страница 4: ...ppliance do not repair by yourself Contact the sales dealer or service dealer for a repair and disposal CAUTION Ventilate any enclosed areas when installing or testing the refrigeration system Leaked...

Страница 5: ...er since it contains more than air it poses the risk of suffocation if its density should rise excessively Suffocation from leakage of refrigerant is almost non existent With the recent increase in th...

Страница 6: ...important than ever 2 Be sure to recharge the refrigerant only in liquid form 2 1 Since R410A is a non azeotrope recharging the refrigerant in gas form can lower performance and cause defects in the u...

Страница 7: ...not vent gases into the atmosphere Refrigerant type R410A GWP 1 value 2088 1 GWP global warming potential Periodical inspections for refrigerant leaks may be required depending on European or local l...

Страница 8: ...Unit in Heavy Snow Areas 2 4 Precautions When Installing in Heavy Snow Areas 2 5 Dimensions of Wind Ducting 2 6 Dimensions of Snow Ducting 3 HOW TO INSTALL THE OUTDOOR UNIT 23 3 1 Transporting 3 2 Ins...

Страница 9: ...r copper tubes as required to precise length of tubing See section 5 3 Insulating the Refrigerant Tubing for details 3 Use insulated copper wire for field wiring Wire size varies with the total length...

Страница 10: ...gth LM exceeds 50 m increase the main tubing size at the portion before 50 m by 1 rank for the suction tubes and discharge tubes Use a field supply reducer Determine the length less than the limitatio...

Страница 11: ...ing between outdoor units based on the main tubing size LA as given in the table above Table 4 Main Tubing Size After Distribution LB LC Total capacity after distribution Over kW 7 1 2 5 HP 16 0 6 HP...

Страница 12: ...rigerant charge amount is calculated below Required amount of additional refrigerant charge Amount of additional refrigerant charge per meter of each size of liquid tube its tube length Necessary amou...

Страница 13: ...mber of outdoor unit 1 2 3 Upper limit kg 50 80 105 Make sure the values calculated using the following formula should not exceed the maximum allowable values Table 13 Total refrigerant amount Refrige...

Страница 14: ...indoor volume floor area as against the amount of refrigerant is roughly as given in the following table CAUTION Pay special attention to any location such as a basement etc where leaking refrigerant...

Страница 15: ...90 15 30 Straight tubing length over 200mm Branch tubing angle Horizontal Straight tubing length over 200mm or 0 30 Branch tubing angle Horizontal Vertical Upward Vertical Vertical Vertical Vertical D...

Страница 16: ...on procedure Table 15 Model name Cooling capacity after distribution Remarks Model name Cooling capacity after distribution Remarks 1 CZ P680PH2 68 0 kW or less For outdoor unit 3 CZ P224BH2 22 4 kW o...

Страница 17: ...7 7 186 136 69 235 Suction tube Discharge tube Liquid tube Thermal insulation Thermal insulation Thermal insulation Example F below indicates inner diameter below indicates outer diameter If the tube...

Страница 18: ...12 7 m D Discharge tubing Total length of 25 4 m e Liquid tubing Total length of 9 52 m E Discharge tubing Total length of 22 22 m f Liquid tubing Total length of 6 35 m F Discharge tubing Total leng...

Страница 19: ...in combination of 2 units See Table 10 Note 2 Amount of additional charge for outdoor unit combination number 2 000g Note 3 The charge amounts per 1 meter are different for each discharge tubing size...

Страница 20: ...ed as follows Required minimum room volume overall refrigerant charge amount limit density 36 103 kg 0 44 kg m3 82 05 m3 Required minimum floor area minimum room volume ceiling height 82 05 m3 2 7 m 3...

Страница 21: ...n When setting the anchor bolt to position B or C make the space between the outdoor units more than 180 mm for installation operation CAUTION Leave space open above the unit Construct louvers or othe...

Страница 22: ...the outdoor unit may stop running causing the unit to be damaged There may be no air flow The tubing may freeze and burst The condenser pressure may drop because of strong wind and the indoor unit may...

Страница 23: ...ths of lifting belt 7 5 meters long or longer Hang the lifting belt at an oblique angle of the four corners of the bottom plate If it is hung at other areas the lifting belt becomes loose and the outd...

Страница 24: ...ngle outdoor unit see the figure below 740 770 15 1000 C 730 B 730 A 964 18 1150 1180 15 1000 C 730 B 730 A 964 18 15 18 234 Unit mm Detailed view of anchor hole 8 15 21 elongated hole In case of the...

Страница 25: ...rical wiring port bottom Vibration insulator Plate leg left Installation hole pitch E E D D C 730 D D E E B 730 15 75 100 100 100 100 D A 964 D D D 100 Tubing port bottom Electrical wiring port bottom...

Страница 26: ...he tubing is routed out from the bottom use cutting pliers or a similar tool to cut out the tubing outlet slit part indicated by from the tubing cover Be careful not to damage the tubing cover Front B...

Страница 27: ...welding to the surrounding sheet metal parts If necessary use a wet rag to prevent overheating of the heat exchanger Use the supplied connector tubing 1 2 3 4 10 12 HP Supplied tube 1 2 3 4 14 HP 16...

Страница 28: ...p width 19 Flare nut 9 52 Valve cap width 27 Flare nut 12 7 Valve cap width 17 Valve cap width 30 Service port cap width 17 Service port cap width 17 Valve cap width 14 Service port cap width 17 Servi...

Страница 29: ...nce tube Flare nut 6 35 Valve cap width 27 Flare nut 12 7 Valve cap width 14 Service port cap width 17 Service port cap width 17 Do not apply an adjustable wrench to the hexagonal part Do not use two...

Страница 30: ...t to misoperate or become damaged 5 Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan 6 Unauthorized changes in the internal wiring can be very dangerous Th...

Страница 31: ...or circuit capacity D1 L1 U2 Y2 K2 T2 F2 M1 P1 R1 E1 E2 Z1 Refer to the Installation Instructions of the indoor unit Control wiring C Inter unit between outdoor and indoor units control wiring 0 75 mm...

Страница 32: ...nd 12 hp Type MF3 Inter outdoor unit control wiring Inter unit control wiring U2 U1 R2 R1 L N R2 R1 R2 R1 R2 R1 2 1 2 1 U2 U1 L N U2 U1 L N U2 U1 L N 2 1 2 1 2 1 D E C B L N L N L N L N 2 1 B B B C D...

Страница 33: ...2m required Outdoor unit Branch point Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Outdoor unit Outdoor unit Prohibited Prohibited Outdoor unit Indoor unit Indoor unit Ind...

Страница 34: ...ing one indoor unit with one solenoid valve kit Group control is possible by connecting plural indoor units to one solenoid valve kit Indoor units can operate individually by connecting plural indoor...

Страница 35: ...ributor to obtain a specific program settings software 1 Refer to Test Run for setting instructions Please note the following system example is prohibited and avoid the following connection Solenoid v...

Страница 36: ...rewdriver Screw and Special washer Ring pressure terminal Terminal board Ring pressure terminal Screw Special washer Wire Wire Examples of shield wires 1 Remove cable coat not to scratch braided shiel...

Страница 37: ...e and to prevent accumulation of liquid inside the unit Use this screw when connecting to ground for the inter unit control wiring Functional earthing Power supply Inter unit control wiring Power supp...

Страница 38: ...for the next system To the next system outdoor unit Forced Stop input Connect to fire alarm etc Demand controller connection Local supply Functional earthing Functional earthing Functional earthing F...

Страница 39: ...ith Functional earthing at the bottom of the terminal block Secure the wire with the cord clamp located on the lower part of the terminal block When connecting the demand controller input It is possib...

Страница 40: ...hielded cable is connected with Functional earthing at the bottom of the terminal block Secure the wire with the cord clamp located on the lower part of the terminal block 2 Connecting the shielded ca...

Страница 41: ...two screws to remove 2 Secure the wires and cables with the wire clamps 3 Install the wire clamps on the outdoor unit Wire clamp Screw Wires and cables Outdoor unit Check after completing installation...

Страница 42: ...Use of the Flaring Method Many of conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units In this method the coppe...

Страница 43: ...he indoor side refrigerant tubing extended from the wall with the outdoor side tubing 2 To fasten the flare nuts apply the following specified torque When removing the flare nuts from the tubing conne...

Страница 44: ...Sort of insulation material Polyethylene heat resisting material Upper limits of usage temperature Gas tubing 120 C or above Other tubing 80 C or above Calculating condition Thermal conductivity of i...

Страница 45: ...t relative humidity Ambient relative humidity Sealer Flare insulator Tube insulator Vinyl clamps Flare nut Unit side insulator Refrigerant tubing and insulator Drain pipe and insulator Drain insulator...

Страница 46: ...ap half of each previous tape turn 3 Clamp the tubing bundle to the wall using 1 clamp approx each meter Insulated tubes Drain hose Clamp NOTE Do not wind the armoring tape too tightly since this will...

Страница 47: ...te and perform vacuum drying the indoor unit and tubing 1 Confirm that the shut off valves of discharge tube suction tube liquid tube and balance tube are kept closed 2 Connect the vacuum pump and vac...

Страница 48: ...nection port with the system in Cooling mode at the time of test run Close the valve on the cylinder containing R410A Finishing the job 1 With a flathead screwdriver turn the liquid tube service valve...

Страница 49: ...lve on the balance tubes and open the service valve on the other 3 tubes suction discharge and liquid tubes If 2 or 3 outdoor units are installed open the service valves on all 4 tubes suction dischar...

Страница 50: ...or unit P C B OFF Are LEDs 1 and 2 on outdoor unit P C B OFF Does system operate If the terminating resistance pin on outdoor main unit P C B is made link wiring more than 2 refrigerant systems set to...

Страница 51: ...51 7 3 Main Outdoor Unit PCB Setting LED2 LED1 SW6 SW5 SW7 SW2 SW3 SW4 SW1 CN40 CN30 CN27 CN22 TM1 CN23 CN24 CN28 CN73 CN69 CN82 CN67 JP12 JP11 CN34 CN33 00_341136_2WAY_Eng indb 51 2022 9 19 9 27 31...

Страница 52: ...3 units 1 2 ON Address setting of main outdoor unit SW5 Unit No setting Address setting of outdoor unit SW5 3P DIP switch Unit No 1 main unit factory setting 1 ON 2 1 3 OFF ON 2 1 3 ON Address setting...

Страница 53: ...and content of alarm message will be checked RUN pin 2P BLK CN27 When short circuited and pulse signal is given all indoor units operate in the same refrigerant system STOP pin 2P BLK CN28 When short...

Страница 54: ...es auto address setting goes out and the process is stopped Be sure to perform auto address setting again Auto address setting is completed when LEDs 1 and 2 on outdoor main unit control P C board go...

Страница 55: ...3 Sub Unit 2 Sub Unit 1 Main Number of outdoor units 3 units setting Unit number setting unit 1 Unit number setting unit 2 Unit number setting unit 3 Set the terminating resistance pin to SHORT side...

Страница 56: ...eck that the refrigerant system address Rotary switch SW1 on outdoor main unit control P C board in 1 refrigerant system is set to 1 and the Dip switch SW2 is set to 0 at shipment 1 2 ON 1 2 ON OFF 4...

Страница 57: ...simultaneously Communication for auto address setting begins and the compressor is started and auto address setting in heating mode begins All indoor units can also be operated To cancel again short c...

Страница 58: ...possible to perform auto address setting in a multiple refrigerant system simultaneously Communication for auto address setting begins and the compressor starts and auto address setting in cooling mod...

Страница 59: ...etting is completed 5 Repeat the same steps to perform auto address setting for each successive system Auto Address Setting from the High spec Wired Remote Controller CZ RTC5B 4 Select the O D unit no...

Страница 60: ...number of indoor units and setting number of indoor units Under auto address setting Alternately Auto address setting completed There are inconsistencies between the number of indoor units and setting...

Страница 61: ...simple settings mode 2 The address is displayed for the indoor unit that is connected to the remote controller Only the address of the indoor unit that is connected to the remote controller can be che...

Страница 62: ...ner will not operate properly unless proper setting changes are performed Be sure to change the setting as follows Combination Shared solenoid valve kit YES NO Change necessary YES NO Change of indoor...

Страница 63: ...y pressing the or button for changes Simple settings Unit no Code no Set data 01 ALL 0001 Sel Next 20 30 THU 4 Select the Code no by pressing the or button Change the Code no by pressing the or button...

Страница 64: ...press the button and select the address unit No of the indoor unit to set If unit No ALL is displayed the same setting will be made for all indoor units 4 Press the temperature setting button to selec...

Страница 65: ...ontroller 1 Press the remote controller button for 4 seconds or longer Then press the button appears on the LCD display while the test run is in progress The temperature cannot be adjusted when in Tes...

Страница 66: ...Self Diagnosis Function Table Cause and countermeasure against the symptom of auto address failure Symptom Cause and countermeasure When turning ON power to the outdoor main unit LEDs 1 and 2 illumin...

Страница 67: ...e controller when in the indoor unit group control address setting may not occasionally be made although under setting is displayed 3 Although the alarm E15 and E16 are displayed addresses will be ins...

Страница 68: ...w pressure sensor value is too low H07 Compressor or refrigerant circuit has low oil H08 Compressor 1 oil temperature sensor has failure OIL1 H11 Compressor 2 primary current is overcurrent H13 Compre...

Страница 69: ...setting of indoor unit is not correct L11 Incorrect wiring of remote group control wiring in case of shared solenoid valve kit L13 Indoor unit model does not match with outdoor unit F01 Indoor thermi...

Страница 70: ...K wiring is one location See section 7 4 Auto Address Setting For 2 or more refrigerant systems 2 locations should be valid SHORT for VRF systems at shipment See section 7 4 Auto Address Setting In or...

Страница 71: ...90 210 2390 2510 32HP 1180 1180 60 180 2420 2540 1150 1150 90 210 2390 2510 34HP 1180 1180 1180 60 180 3660 3900 1150 1150 1150 90 210 3630 3870 36HP 1180 1180 1180 60 180 3660 3900 1150 1150 1150 90...

Страница 72: ...80 1180 1158 1158 60 180 2420 2540 32HP 1180 1180 1158 1158 60 180 2420 2540 34HP 1180 1180 1180 1158 1158 1158 60 180 3660 3900 36HP 1180 1180 1180 1158 1158 1158 60 180 3660 3900 38HP 1180 1180 1180...

Страница 73: ...8 24HP 1180 1180 1158 1158 2540 2433 3518 26HP 1180 1180 1158 1158 2540 2433 3518 28HP 1180 1180 1158 1158 2540 2433 3518 30HP 1180 1180 1158 1158 2540 2433 3518 32HP 1180 1180 1158 1158 2540 2433 351...

Страница 74: ...74 NOTE 00_341136_2WAY_Eng indb 74 2022 9 19 9 27 46...

Страница 75: ...75 NOTE 00_341136_2WAY_Eng indb 75 2022 9 19 9 27 46...

Страница 76: ...ACXF60 29141 DC0418 20922 Printed in Malaysia 00_341136_2WAY_Eng indb 2 2022 9 19 9 27 46...

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