Panasonic U-72MF2U94 Installation Instructions Manual Download | Manualshive

Page: 31 / 64

background image

31

CAUTION

CAUTION

(1) When linking outdoor units in a network, see the section “ATTENTION!”.

(2) Do not install the inter-unit control wiring in a way that forms a loop.

Outdoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Outdoor unit

Outdoor unit

Prohibited

Prohibited

(3) Do not install inter-unit control wiring such as star branch

wiring. Star branch wiring causes mis-address setting.

Outdoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

NO

Branch point

(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.

Outdoor unit

Outdoor unit

Outdoor unit

Indoor unit

Central Controller

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

More than 7ft.

(2m) required

: Branch point

01_302412_Eng.indd 31

2018/7/4 13:30:48

«
...
29
30
31
32
33
...
»

Summary of Contents for U-72MF2U94

Page 1: ...D1U6 S 09MD1U6 S 12MD1U6 F2 Concealed Duct Medium Static S 07MF2U6 S 09MF2U6 S 12MF2U6 S 15MF2U6 S 18MF2U6 S 24MF2U6 S 36MF2U6 S 48MF2U6 S 54MF2U6 M2 Concealed Duct Low Static S 07MM2U6 S 09MM2U6 S 12...

Page 2: ...ith Earth Leakage Circuit Breaker ELCB or Residual Current Device RCD Otherwise it may cause electrical shock and fire in case of equipment breakdown or insulation breakdown When Transporting Be caref...

Page 3: ...injured and the unit may be damaged Check of Density Limit The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out its density will...

Page 4: ...ter and other impurities becomes more 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...

Page 5: ...parts are different 2 Existing tubing cannot be used especially R22 Completely cleaning out residual refrigerating machine oil is impossible even by flushing 3 Refrigerating machine oil differs R22 Si...

Page 6: ...ow 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 24 3 1 Transporting 3 2 Installing the Outd...

Page 7: ...l electrical codes and regulations before obtaining wire Also check any specified instructions or limitations 1 4 Additional Materials Required for Installation 1 Refrigeration armored tape 2 Insulate...

Page 8: ...tube ends 2 If the longest tubing length L1 exceeds 295 ft 90m equivalent length increase the sizes of the main tubes LM by 1 rank for the suction tubes discharge tubes and liquid tubes Use a field su...

Page 9: ...ize of tubing LO between outdoor units Select the size of tubing 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 Un...

Page 10: ...n mm When bending the tubes use a bending radius that is at least 4 times the outer diameter of the tubes In addition take sufficient care to avoid crushing or damaging the tubes when bending them Mat...

Page 11: ...le indoor outdoor capacity ratio 50 150 3 1 In the case of 20 ton 70 3kW or smaller units the number is limited by the total capacity of the connected indoor units 2 Up to 3 units can be connected if...

Page 12: ...annot be touched Strongly recommended installation Hallway Room Indoor unit Room Indoor unit Room Indoor unit Room Indoor unit Solenoid valve kit Solenoid valve kit Hallway Avoid Common solenoid valve...

Page 13: ...cting to B Horizontal A D B 15 90 Straight tubing length over 8 in 200mm Arrow view D 15 90 15 30 15 90 15 30 Straight tubing length over 8 in 200mm Branch tubing angle Horizontal Straight tubing leng...

Page 14: ...ors for both the Suction tube and the Discharge tube are the same Suction tube and Discharge tube are similar in sizes and both the tube entrances have the same diameter So the both Distribution joint...

Page 15: ...tube are the same Suction tube and Discharge tube are similar in sizes and both the tube entrances have the same diameter So the both Distribution joints can fit into different tubes Since the diamete...

Page 16: ...t possible to charge the designated amount operate the system in Cooling mode while charging with refrigerant from the gas tubing side This is performed at the time of the test run For this all valves...

Page 17: ...ecessary amount of additional refrigerant charge for all indoor unit cooling capacity BTU h kW 179 400 BTU h Cooling capacity BTU h x 1 034 x 0 001 10 6 oz 179 400 x 1 034 x 0 001 10 6 196 oz 52 6 kW...

Page 18: ...of combination installation CAUTION CAUTION l Leave space open above the unit l Construct louvers or other openings in the wall if necessary to ensure adequate ventilation NOTE l Do not do any wiring...

Page 19: ...direct exposure to the wind should be avoided as much as possible The following problems may occur if proper countermeasures are not taken l The fan in the outdoor unit may stop running causing the un...

Page 20: ...ir discharge chamber field supply Note Can be installed so that the air direction is to the front or rear direction unit in mm Top view Air direction Rear direction Air direction Front direction 101 3...

Page 21: ...iew Right side view According to the installation site you may choose the setting position in the depth direction of the anchor bolt from A B or C D E F G H I J K L M A Installation hole pitch 2 23 64...

Page 22: ...4 21 64 872 2 29 32 74 1073 42 1 4 39 31 64 1003 5 64 2 3 64 1 58 5 8 1489 25 25 32 655 57 9 16 1462 28 55 64 733 101 3 16 2570 45 19 32 1158 43 13 16 1113 46 11 16 1186 84 61 64 2158 46 29 64 1180 18...

Page 23: ...25 32 655 28 55 64 733 101 3 16 2570 25 53 64 656 57 9 16 1462 39 31 64 1003 3 64 1 5 64 2 Top view Before installing snow proof ducting Top view C 28 47 64 730 Installation hole pitch B 28 47 64 730...

Page 24: ...nit 1 Use anchor bolts 15 32 or M12 or similar to securely anchor the unit in place 2 Make sure the rubber vibration insulator and platform extend to the inside of the legs In addition the washers use...

Page 25: ...on hole pitch The tubing is routed out from the front B 28 47 64 730 Installation hole pitch The tubing is routed out from the bottom C 28 47 64 730 Installation hole pitch Tubing cover Tubing cover S...

Page 26: ...bution tubing optional l When bending the tubes bend each tube using a radius that is at least 4 times the outer diameter of the tube When bending use sufficient care to avoid crushing or damaging the...

Page 27: ...N m 10 12 kgf cm 100 120 Valve cap lbs inch 120 170 190 240 N m 14 20 22 28 kgf cm 140 200 220 280 Flare nut lbs inch 300 360 430 610 N m 34 42 49 61 kgf cm 340 420 490 610 The discharge tube valve S...

Page 28: ...used 2 Use a pressure reducing valve on the nitrogen tank 3 Do not use agents intended to prevent the formation of oxide film They will adversely affect the refrigeration oil and may cause equipment...

Page 29: ...wire diameters differ from locality to locality For field wiring rules please refer to your LOCAL ELECTRICAL CODES before beginning You must ensure that installation complies with all relevant rules a...

Page 30: ...or unit No n WHT BLK Ground Power supply 208 230V 60Hz 1 PH Power supply 208 230V 60Hz 1 PH Power supply 208 230V 60Hz 1 PH Power supply 208 230V 60Hz 3 PH Power supply 208 230V 60Hz 3 PH Power supply...

Page 31: ...it control wiring such as star branch wiring Star branch wiring causes mis address setting Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit NO Branch point 4 If branching the inter unit co...

Page 32: ...ecking voltage of terminal board Check if the wiring AC200V or more is connected to the inter unit control wiring connection terminal board First turn off the power and then proceed the work If AC200V...

Page 33: ...minal board 1 Inter outdoor unit control wiring 1 2 2P terminal board 1 Tightening torque lbs inch N m 1 11 3 1 25 0 25 2 55 2 6 2 0 2 3 73 4 8 2 0 4 U 72MF2U9 U 96MF2U9 U 120MF2U9 U 144MF2U9 CR 72MF2...

Page 34: ...sure to use waterproof conduit for electrical wiring to the outdoor unit Protective structure is necessary to avoid raindrops through wiring ports Hollow to cut out openings for wiring ports on the p...

Page 35: ...to cut approx 1 2 ft 0 3 0 6m longer than the tubing length you estimate 2 Remove burrs at the end of the copper tube with a tube reamer or a similar tool This process is important and should be done...

Page 36: ...outdoor side tubing 2 To fasten the flare nuts apply specified torque as at right l When removing the flare nuts from the tubing connections or when tightening them after connecting the tubing be sur...

Page 37: ...nuts at the gas tube connections Then cover up the tubing connections with the flare insulator and fill the gap at the union with the supplied black insulation tape Finally fasten the insulator at bot...

Page 38: ...re gauges and dry nitrogen gas cylinder to all service ports with charge hoses The balance tube leak test is not necessary if only 1 outdoor unit is installed 2 Pressurize the system to no more than 4...

Page 39: ...Lo knob of the manifold valve is open Then run the vacuum pump The operation time for evacuation varies with the tubing length and capacity of the pump Evacuation is not necessary for the balance tub...

Page 40: ...lve counter clockwise to fully open the valve 2 Turn the all service valve counter clockwise to fully open the valve 3 Close all stop valves and loosen the Lo knob of the manifold valve 4 Loosen the c...

Page 41: ...ly 1 outdoor unit is installed close the service valve 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 ope...

Page 42: ...r 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...

Page 43: ...8 CN24 CN40 CN33 CN34 7 3 Main Outdoor Unit PCB Setting U 72MF2U9 U 96MF2U9 SHORT OPEN CN67 CR 72MF2U9 A748186 COOL SW1 SW2 SW3 SW4 SW6 SW5 HEAT A ADD MODE R C ADD NO OF I U ON ON OFF OFF ON OFF ON OF...

Page 44: ...44 CN73 CN34 CN33 SW5 SW6 SW4 SW3 SW1 SW2 CN24 CN40 CN30 CN28 CN27 CN23 Terminating resistance pin U 72MF2U94 U 96MF2U94 U 120MF2U94 U 144MF2U94 01_302412_Eng indd 44 2018 7 4 13 30 58...

Page 45: ...1 Set to 1 11 units 1 ON 2 1 3 ON ON OFF 1 Set to 1 21 units 2 ON 1 2 3 ON ON OFF 1 Set to 1 31 units 3 ON 3 2 1 ON ON OFF 1 Set to 1 40 units 1 3 ON 1 2 3 ON ON OFF 0 Set to 0 52 units 2 3 ON 1 2 3 O...

Page 46: ...gins If the remote controller is connected in test run mode it is automatically cancelled after 1 hour Also if short circuit is cancelled test run mode is cancelled RC plug 3P BLU CN73 Connects to out...

Page 47: ...ped 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 out 7 Remote control operation is now available When aut...

Page 48: ...number setting unit 1 Unit number setting unit 2 Set the terminating resistance pin to SHORT side CN67 Unit number setting unit 3 Inter outdoor unit control wiring Inter outdoor unit control wiring R...

Page 49: ...frigerant 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 ON OFF 4 Regarding the numbe...

Page 50: ...m 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...

Page 51: ...impossible 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 m...

Page 52: ...tting is completed 5 Repeat the same steps to perform auto address setting for each successive system 1 Keep pressing the and buttons simultaneously for 4 or more seconds The Maintenance func screen a...

Page 53: ...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...

Page 54: ...er 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...

Page 55: ...mer remote controller 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...

Page 56: ...play appears Are remote control wiring and inter unit control wiring connected properly Is indoor unit turned ON power Auto address setting begins but finishes improperly Symptom Cause and countermeas...

Page 57: ...er unit control wiring of the remote 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...

Page 58: ...ensor of the outdoor unit has failure HPS F17 Low pressure sensor of the outdoor unit has failure LPS F23 EXG2 thermistor at the gas side of 2nd heat exchanger of the outdoor unit has failure EXG2 F24...

Page 59: ...ch with the outdoor unit model Multi split mini split L03 Two or more indoor units are set as main in group control L05 Two or more indoor units are set as priority indoor unit L06 Two or more indoor...

Page 60: ...at EXCT terminal on indoor PCB for refrigerant detector P03 Protective device in outdoor unit is activated 1st compressor discharge temperature too high P04 Protection device activated High pressure...

Page 61: ...ce or peripheral equipment adjustment of terminating resistance pin is necessary Although the connection is not made confirmation is necessary for VRF systems In the case of a refrigerant system the t...

Page 62: ...62 NOTE 01_302412_Eng indd 62 2018 7 4 13 31 05...

Page 63: ...63 NOTE 01_302412_Eng indd 63 2018 7 4 13 31 05...

Page 64: ...ACXF60 18571 DC0915 40718 Printed in China 85464369843023 01_302412_Eng indd 64 2018 7 4 13 31 05...

Reviews:

No comments

Related manuals for U-72MF2U94

Brand: GE Pages: 72

Brand: Haier Pages: 122

Brand: QuietFlo Pages: 24

Brand: National Comfort Product Pages: 32

Brand: National Comfort Product Pages: 28

Brand: Unitary products group Pages: 20

Brand: Unitary products group Pages: 32

Brand: d2itsu Pages: 20

VRV III BSVQ100P8V1B

Brand: Daikin Pages: 20

Brand: Olimpia splendid Pages: 144

Brand: Marvair Pages: 44

Brand: AAF Pages: 12

Brand: York Pages: 12

WISE Parasol Zenith 600

Brand: Swegon Pages: 14

Brand: Ohyama Pages: 72

Brand: Daikin Pages: 6

Brand: mundoclima Pages: 14

Brand: Hunter Pages: 35

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands