Panasonic U-8MF3R7 Installation Instructions Manual
Panasonic U-8MF3R7 Installation Instructions Manual

Panasonic U-8MF3R7 Installation Instructions Manual

Hide thumbs Also See for U-8MF3R7:

Advertisement

Quick Links

INSTALLATION INSTRUCTIONS
Air Conditioner
This air conditioner uses the refrigerant R410A.
Model No.
Outdoor Units
Type
Outdoor Unit Type
MF3 3WAY System
• To be connecting Indoor Unit
Indoor Units
Type
Indoor Unit Type
D1
1-Way Cassette
L1
2-Way Cassette
U2
4-Way Cassette
Y2
4-Way Cassette 60 × 60
K2
Wall-Mounted
T2
Ceiling
F2
Low Silhouette Ducted
M1 Slim Low Static Ducted
P1
Floor Standing
R1
Concealed Floor Standing
Z1
Slim Type Ducted
Type
Indoor Unit Type
D1
1-Way Cassette
L1
2-Way Cassette
U2
4-Way Cassette
K2
Wall-Mounted
T2
Ceiling
F2
Low Silhouette Ducted
High Static Pressure Ducted
E1
Ducted
P1
Floor Standing
R1
Concealed Floor Standing
Z1
Slim Type Ducted
Type
Indoor Unit Type
E1
High Static Pressure Ducted
E2
High Static Pressure Ducted
Read through the Installation Instructions before you proceed with the installation. In particular, you will need to read under
the " IMPORTANT ! " section at the top of the page.
8 HP
10 HP
U-8MF3R7
U-10MF3R7
22
28
S-28MD1E5
S-22ML1E5
S-28ML1E5
S-22MU2E5A S-28MU2E5A S-36MU2E5A S-45MU2E5A S-56MU2E5A S-60MU2E5A
S-22MY2E5A S-28MY2E5A S-36MY2E5A S-45MY2E5A S-56MY2E5A
S-22MK2E5A S-28MK2E5A S-36MK2E5A S-45MK2E5A S-56MK2E5A
S-22MF2E5A S-28MF2E5A S-36MF2E5A S-45MF2E5A S-56MF2E5A S-60MF2E5A
S-22MM1E5A S-28MM1E5A S-36MM1E5A S-45MM1E5A S-56MM1E5A
S-22MP1E5
S-28MP1E5
S-22MR1E5
S-28MR1E5
S-22MZ1H4A S-28MZ1H4A S-36MZ1H4A S-45MZ1H4A S-56MZ1H4A S-60MZ1H4A
71 / 73
90
S-73MD1E5
S-73ML1E5
S-73MU2E5A S-90MU2E5A S-106MU2E5A S-140MU2E5A S-160MU2E5A
S-73MK2E5A
S-73MT2E5A
S-73MF2E5A S-90MF2E5A S-106MF2E5A S-140MF2E5A S-160MF2E5A
S-73ME1E5
S-90ME1R5A S-112ME1R5A S-140ME1R5A S-160ME1R5A
S-71MP1E5
S-71MR1E5
S-73MZ1H4A
Rated Capacity
180
224
S-224ME1E5 S-280ME1E5
S-180ME2E5
S-224ME2E5 S-280ME2E5
Rated Capacity
12 HP
14 HP
U-12MF3R7
U-14MF3R7
Rated Capacity
36
45
S-36MD1E5
S-45MD1E5
S-36ML1E5
S-45ML1E5
S-36MT2E5A S-45MT2E5A S-56MT2E5A
S-36MP1E5
S-45MP1E5
S-36MR1E5
S-45MR1E5
Rated Capacity
106 / 112
140
S-106MK2E5A
S-106MT2E5A S-140MT2E5A
S-106ME1E5 S-140ME1E5
280
16 HP
U-16MF3R7
56
60
S-56MD1E5
S-56ML1E5
S-56MP1E5
S-56MR1E5
160
ACXF60-29141

Advertisement

Table of Contents
loading

Summary of Contents for Panasonic U-8MF3R7

  • Page 1 Outdoor Units Rated Capacity Type Outdoor Unit Type 8 HP 10 HP 12 HP 14 HP 16 HP MF3 3WAY System U-8MF3R7 U-10MF3R7 U-12MF3R7 U-14MF3R7 U-16MF3R7 • To be connecting Indoor Unit Indoor Units Rated Capacity Type Indoor Unit Type...
  • Page 2: Important

    ● Permission from the power supplier is required when • Do not supply power to the unit until installing the U-8MF3R7 outdoor unit that is connected WARNING all wiring and tubing are completed or to a 16 A distribution network.
  • Page 3 When Transporting When Connecting Refrigerant Tubing • It may need two or more people to carry Pay particular attention to refrigerant out the installation work. leakages. • Be careful when picking up and moving the indoor and outdoor units. Get a WARNING partner to help, and bend your knees when lifting to reduce strain on your...
  • Page 4 When Servicing Others • Turn the power OFF at the main When disposal of the product, comply with power box (mains), wait at least 5 national regulations. minutes until it is discharged, then open the unit to check or repair CAUTION electrical parts and wiring.
  • Page 5: Check Of Density Limit

    Check of Density Limit The standards for minimum room volume are as follows. (1) No partition (shaded portion) Check the amount of refrigerant in the system and floor space of the room according to the legislation on refrigerant drainage. If there is no applicable legislation, follow the standards described below.
  • Page 6: Precautions For Installation Using New Refrigerant

    Precautions for Installation Using New Refrigerant 1. Care regarding tubing 1-1. Process tubing ● Material: Use seamless phosphorous deoxidized copper tube for refrigeration. Wall thickness shall comply with the applicable legislation. The minimal wall thickness must be in accordance with the table below. For tubes of ø22.22 or larger, use the material of temper 1/2H or H (Hard copper tube).
  • Page 7: Important Information Regarding The Refrigerant Used

    Important Information Regarding The Refrigerant Used This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere. Refrigerant type: R410A value: 2088 GWP = global warming potential Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your local dealer for more information.
  • Page 8: Table Of Contents

    CONTENTS Page Page IMPORTANT! ........2 5.
  • Page 9: General

    1. GENERAL This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the outdoor unit and make sure all accessory parts listed are with the system before beginning. 1-1.
  • Page 10: Tubing Length

    1-5. Tubing Length Select the installation location so that the length and size of refrigerant tubing are within the allowable range shown in the figure below. Main tubing length (maximum tubing size of discharge tube, suction tube and liquid tube) LM = LA + LB … Main distribution tubes LC –...
  • Page 11: Tubing Size

    5: If any of the tubing length exceeds 30 m, increase the size of the tubes (liquid tube, suction tube and discharge tube) between the distribution tube and solenoid valve kit by 1 rank and also increase the size of the tubes (liquid tube and gas tube) between the solenoid valve kit and indoor unit by 1 rank.
  • Page 12: Straight Equivalent Length Of Joints

    Liquid tubing size (mm) 6.35 9.52 12.7 15.88 19.05 22.22 Amount of additional refrigerant charge/m (g/m) Table 10 Necessary Amount of Additional Refrigerant Charge Per Outdoor Unit U-8MF3R7 U-10MF3R7 U-12MF3R7 U-14MF3R7 U-16MF3R7 1.0 kg 1.0 kg 3.9 kg 3.9 kg 3.9 kg...
  • Page 13: System Limitations

    Table 12 Necessary Amount of Additional Refrigerant Charge per meter, According to Discharge Tubing Size Discharge tubing size ø12.7 ø15.88 ø19.05 ø22.22 ø25.4 ø28.58 ø31.75 ø38.1 Additional amount *Additional refrigerant charge amount of discharge tubing should be less than 9,000g. 1-9.
  • Page 14: Check Of Limit Density

    Common solenoid valve kit ● Multiple indoor units under group control can utilize a solenoid valve kit in common. ● Categories of connected indoor unit capacities are determined by the solenoid valve kit. Type of solenoid valve kit Total capacity of indoor units (kW) 5.6 <...
  • Page 15: Installing Distribution Joint

    1-12. Installing Distribution Joint (1) Refer to “HOW TO ATTACH DISTRIBUTION JOINT” enclosed with the optional distribution joint kit (CZ-P680PH2, CZ-P1350PH2, CZ-P224BH2, CZ-P680BH2, CZ-P1350BH2). ● When connecting a branch tubing to the indoor unit directly, it is necessary for each branch tubing to install at a positive angle with respect to horizontal in order to prevent accumulation of refrigerant oil in stopped units.
  • Page 16: Optional Distribution Joint Kits

    1-13. Optional Distribution Joint Kits See the installation instructions packaged with the distribution joint kit for the installation procedure. Table 15 Cooling capacity Cooling capacity Model name Remarks Model name Remarks after distribution after distribution 1. CZ-P680PH2 68.0 kW or less For outdoor unit 3.
  • Page 17: Optional Solenoid Valve Kit

    Table 18 Dimensions for connections of each part Unit: mm Position Dimension ø38.1 ø31.75 ø28.58 ø25.4 ø22.22 ø19.05 ø15.88 ø12.7 ø9.52 – CZ-P224BH2 Use: For indoor unit (Capacity after distribution joint is 22.4 kW or less.) Example: (F below indicates inner diameter. below indicates outer diameter.) Discharge tube Liquid tube...
  • Page 18: Example Of Tubing Size Selection And Refrigerant

    1-15. Example of Tubing Size Selection and Refrigerant Charge Amount Additional refrigerant charging Based on the values in Tables 3, 4, 5, 6, 9, 10 and 12, use “the liquid tubing size and length” and “the discharge tubing size and length”, and calculate the amount of additional refrigerant charge using the formula below.
  • Page 19 Example: ● Example of each tubing length Main tubing Distribution joint tubing Outdoor unit LA = 40 m Outdoor side Indoor side LB = 4.9 m A= 2.1 m 1= 30 m 1-1= 25 m 10 HP 8 HP 2-1= 4 m LC = 4.9 m B= 2.1 m 2= 4.9 m...
  • Page 20 CAUTION Be sure to check the limit density for the room in which the indoor unit is installed. Checking of limit density 229.5 Density limit is determined on the basis of the size of a room 216.0 using an indoor unit of minimum capacity. 202.5 For instance, when an indoor unit is used in a room (floor area 15 m...
  • Page 21: Selecting The Installation Site

    2. SELECTING THE INSTALLATION SITE N OT E 2-1. Outdoor Unit ● Do not do any wiring or tubing within 30 cm of the front AVOID: panel, because this space is needed as a servicing space for the compressor. ● heat sources, exhaust fans, etc. ●...
  • Page 22: Shield For Horizontal Exhaust Discharge

    2-2. Shield for Horizontal Exhaust Discharge 2-3. Installing the Outdoor Unit in Heavy Snow Areas It is necessary to install an air-discharge chamber (field supply) In locations where wind-blown snow can be a problem, snow- to direct exhaust from the fan horizontally if it is difficult to proof vents should be fitted to the unit and direct exposure to provide a minimum space of 2 m between the air-discharge the wind should be avoided as much as possible.
  • Page 23: How To Install The Outdoor Unit

    3. HOW TO INSTALL THE OUTDOOR UNIT CAUTION 3-1. Transporting ● When hoisting the outdoor unit, pass lifting belts through When transporting the unit, have it delivered as close to the the left and right holes of the bottom plate as shown in the installation site as possible without unpacking.
  • Page 24: Installing The Outdoor Unit

    3-2. Installing the Outdoor Unit (2) When only using a single outdoor unit, see the figure below. (1) Use four anchor bolts (M12 or similar) to securely anchor Unit: mm Detailed view of anchor hole the unit. Regarding the positioning anchor bolts of the 8-15×21 elongated hole depth direction, select one of three types according to the installation site as shown in the following figures.
  • Page 25 • Below shows vibration insulator position when setting anchor bolt at position A. Unit: mm Unit: mm Detailed view of D Plate leg (left) Plate leg (right) Plate legs (left, right) Anchor bolts Vibration insulator Washer Electrical wiring port (bottom) Vibration insulator Base Tubing port (bottom)
  • Page 26: Routing The Tubing

    3-3. Routing the Tubing ● The tubing can be routed out either from the front or from the bottom. ● The connecting valve is contained inside the unit. Therefore, remove the front panel. (1) If the tubing is routed out from the front, cut out the slit part ( ●...
  • Page 27: Prepare The Tubing

    3-4. Prepare the Tubing 10/12 HP Unit: mm ● Material: Use seamless phosphorous deoxidized copper tube for refrigeration. Wall thickness shall comply with the Refrigerant Connection Supplied 10/12 HP applicable legislation. The minimal wall thickness must be connector tubing method tube? in accordance with the table below.
  • Page 28 Refrigerant tube port ● Use caulking, putty, or a similar material to fill any gaps at the refrigerant tube port ( ) in order to prevent rainwater, dust or foreign substances from entering the unit. * Perform this work even if the tubing is routed out in a downward direction. Bottom plate Tubing cover Tubing routed out...
  • Page 29 Flare nut Flare nut Liquid (ø9.52) (ø15.88) Discharge tube tube Suction tube 12 HP Unit: mm Use two adjustable wrenches, as shown in the 10 HP Unit: mm figure, when removing the liquid tube valve flare Valve cap Service port cap Valve cap Service port cap (width 14)
  • Page 30: Electrical Wiring

    4. ELECTRICAL WIRING 4-1. General Precautions on Wiring (6) Unauthorized changes in the internal wiring can be very (1) Before wiring, confirm the rated voltage of the unit as dangerous. The manufacturer will accept no responsibility shown on its nameplate, then carry out the wiring closely for any damage or misoperation that occurs as a result of following the wiring diagram.
  • Page 31: Wire Length And Wire Diameter For Power Supply System

    (A) Power supply (A) Power supply fuse or circuit fuse or circuit Min. wire size Max. length Min. wire size Max. length capacity capacity U-8MF3R7 25 A 25 A 4 mm² 56 m 6 mm² 84 m U-10MF3R7 6 mm² 65 m 25 A —...
  • Page 32: Wiring System Diagram

    4-3. Wiring System Diagram Indoor unit (No. 1) Power supply 220-230-240V ~ 50-60Hz Outdoor unit INV unit Power supply Ground Remote 380-400-415V 3N ~ 50Hz controller 380-400V 3N~ 60Hz Ground Indoor unit (No. 2) Power supply Inter-outdoor-unit control wiring ~ 50-60Hz 220-230-240V Outdoor unit Ground...
  • Page 33 CAUTION (1) When linking outdoor units in a network, see section “ATTENTION!”. (2) Do not install the inter-unit control wiring in a way that forms a loop. Outdoor unit Outdoor unit Outdoor unit Prohibited Prohibited Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit (3) Do not install the inter-unit control wiring such as star branch wiring.
  • Page 34: Connecting Multiple Indoor Units To A Single Solenoid Valve Kit

    Loose wiring may cause the terminal to overheat or result in unit malfunction. WARNING 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.
  • Page 35 Necessity of setting changes by combination of each method Type of combination: Necessity of setting Method 1 only: Setting is unnecessary. Method 2 included: Setting up in common use of a solenoid valve kit from “Remote Control” is necessary. * * Method 2 only is set.
  • Page 36 How to Connect Wiring to Terminal ■ Examples of shield wires ■ For stranded wiring (1) Remove cable coat not to scratch braided shield. (1) Cut the wire end with cutting pliers, then strip the insulation to expose the stranded wiring about 10 mm and tightly twist the wire ends.
  • Page 37 ■ Wiring sample Use this screw when Use this screw when Use this screw when connecting connecting to ground for connecting to ground for to ground for the inter-unit control the inter-unit control wiring. the inter-unit control wiring. wiring and inter-outdoor unit : Functional earthing) : Functional earthing) control wiring.
  • Page 38 Connection for demand and forced stop ■ Connection procedures Be sure to always turn the power off before setting up the wire and cable connections. Failure to do so may lead to electric shocks or malfunctions. Next system outdoor unit Outdoor unit (Functional earthing) (Functional earthing)
  • Page 39 Use a shielded cable for the cable connection. ● Twist out the end of the shielded part of the cable, crimp it with a round terminal, and connect it to (Functional earthing) screw. After crimping it with a round terminal, wrap it with insulating tape so there are no spaces and adjust it so the shielded part does not come into contact with any live parts.
  • Page 40 When connecting to the next system unit Forced Stop input can be transferred to the next system unit. ● When using the Forced Stop input, connect the wiring to terminal points 1 and 2 on the right side of the lower part of the terminal ●...
  • Page 41 ■ Wiring procedures Follow the wiring procedure below for terminal connections. (1) Remove the wire clamps from the outdoor unit. Wire clamp Loosen two screws to remove. (2) Secure the wires and cables with the wire clamps. (3) Install the wire clamps on the outdoor unit. Outdoor unit Wire clamp Screw...
  • Page 42 5. HOW TO PROCESS TUBING N OT E The liquid tubing side is connected by a flare nut, and the gas When reaming, hold the tube end downward and be sure that tubing side is connected by brazing. no copper scraps fall into the tube. (3) Remove the flare nut from the unit and be sure to mount it 5-1.
  • Page 43 Caution Before Connecting Tubes Tightly 5-2. Connecting Tubing Between Indoor and Outdoor Units (1) Apply a sealing cap or water-proof tape to prevent dust or water from entering the tubes before they are used. (1) Tightly connect the indoor-side refrigerant tubing extended from the wall with the outdoor-side tubing.
  • Page 44 5-3. Insulating the Refrigerant Tubing Two tubes arranged together Tubing Insulation Liquid tube Gas tube ● Standard Selection of Insulation Material Under the environment of the high temperature and high humidity, the surface of the insulation material is easy to Insulation become condensation.
  • Page 45 o38.1 o41.28 Thickness Thickness 30mm 30mm Thickness Thickness 20mm 20mm Thickness Thickness 10mm 10mm Ambient temperature [°C] Ambient temperature [°C] If the exterior of the outdoor unit Insulation material valves has been finished with a The material used for insulation must have good insulation square duct covering, make sure characteristics, be easy to use, be age resistant, and must not CAUTION...
  • Page 46 5-4. Taping the Tubes 5-5. Finishing the Installation (1) At this time, the refrigerant tubes (and electrical wiring if After finishing insulating and taping over the tubing, use sealing local codes permit) should be taped together with armoring putty to seal off the hole in the wall to prevent rain and draft tape in 1 bundle.
  • Page 47 6. AIR PURGING Leak Test and Evacuation Do a leak test by performing the following procedures. Confirm that there is no leakage in the connection area. ● Connect the nitrogen gas cylinder, refrigerant cylinder and vacuum pump to the service ports of the discharge tube, suction tube, liquid tube and balance tube as shown in figure.
  • Page 48 Charging additional refrigerant Use a cylinder designed for use with CAUTION R410A. ● Charging additional refrigerant (calculated from the liquid tube length as shown in the section “1-8. Additional Refrigerant Charge”) using the liquid tube service valve. ● Use a balance or scale to measure the refrigerant accurately.
  • Page 49 7. TEST RUN (4) If only 1 outdoor unit is installed, close the service valve on the balance tubes, and open the service valve on the other 7-1. Preparing for Test Run 3 tubes (suction, discharge, and liquid tubes). If 2 or 3 outdoor units are installed, open the service valves ●...
  • Page 50 7-2. Test Run Procedure Notes: Recheck before the test run. 1. Use caution when making the settings. If there are duplicated system addresses, or if the settings for the number of indoor units are not Have outdoor sub units been connected? consistent, an alarm will occur and the system will not start.
  • Page 51 7-3. Main Outdoor Unit PCB Setting CN73 CN82 CN69 CN67 JP12 JP11 CN22 CN27 LED1 CN23 CN28 LED2 CN24 CN30 CN40 CN33 CN34...
  • Page 52 ● Examples of the No. of indoor units settings (SW4, SW3) Indoor unit setting (SW4) Indoor unit setting (SW3) No. of indoor units (3P DIP switch) (Rotary switch) 10 20 30 1 unit (factory setting) All OFF Set to 1 11 units 1 ON Set to 1...
  • Page 53 CN33 CN34 LED1 LED2 JP11 JP12 CN67 CN69 CN82 CN73 CN22 CN23 CN24 CN28 CN30 CN40 CN27 ● Name And Function Of Each Switch On Outdoor Unit Control P.C. Board Function Switch Remarks Changes to cooling/heating mode. (outdoor main unit is only usable.) When in normal operation: When short circuited the COOL side, indoor unit operation in the same MODE pin (3P, BLK) refrigerant system changes to all cooling mode.
  • Page 54 7-4. Auto Address Setting Example: Basic Wiring Diagram (1) • Case of no link wiring 3P terminating (Inter-unit control wiring is not connected to a multiple system.) resistance pin Indoor unit address setting is possible without starting the compressor. (SHORT side) Unit 1 setting (outdoor main unit) * It is not necessary to control the terminating System address...
  • Page 55 Example: Basic Wiring Diagram (2) • Case of link wiring * See section “ATTENTION!”. Setting of terminal pin (CN67) Refrigerant circuit No. 1 No. 1 refrigerant system Unit No. 1 (Main) : short-circuit (at shipment) Unit No. 2 (Sub) : short-circuit (at shipment) Unit 1 setting (outdoor main unit) Unit No.
  • Page 56 Between conductors ● Final check before operation Wire Final check must be done under the conditions of inter-outdoor unit control wiring connected to the centralized control system and the resistor between conductors must be measured by a Megger. Check if it is showing between 30Ω and 120Ω. Wire If the resistance value is out of range, check adjustment of the termination resistor again.
  • Page 57 Case 3.a Auto Address Setting in Heating Mode ● In case of impossibility of turning ON power to indoor/outdoor units in each refrigerant system: Indoor unit auto address setting cannot be made unless the compressor is started. How to Control Auto Address from Outdoor Unit 1.
  • Page 58 Case 3.b Auto Address Setting in Cooling Mode ● In case of impossibility of turning ON power to indoor/outdoor units in each refrigerant system: The indoor unit auto address setting cannot be made unless the compressor is started. How to Control Auto Address from Outdoor Unit 1.
  • Page 59 Auto Address Setting from the High-spec Wired Remote Controller (CZ-RTC5B) 1 Keep pressing the buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the LCD display. 2 Press the button to see each menu. 20:30 (THU) If you wish to see the next screen instantly, press the button.
  • Page 60 Display During Auto Address Setting ● On the surface of outdoor unit control P.C. board * Do not short circuit the A.ADD pin (CN30) again during auto address setting. LEDs 1 and 2 go out and address setting is interrupted. * When auto address setting is normally completed, both LEDs 1 and 2 go out.
  • Page 61 Checking the indoor unit addresses Use the remote controller to check the indoor unit address. CZ-RTC5B (High-spec wired remote controller) 1 Keep pressing the buttons 3 The “Simple settings” screen appears on the LCD display. simultaneously for 4 or more seconds. Select the “Unit no.”...
  • Page 62 Individual Control of Solenoid Valve kit How to change the setting for utilizing the solenoid valve kit in the indoor unit in common. Setting change may be necessary due to the type of connection of the solenoid valve kit and indoor unit as shown below. Be sure to change according to the following method.
  • Page 63 CZ-RTC5B (High-spec wired remote controller) 1 Keep pressing the buttons 20:30 (THU) simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the LCD display. Maintenance func 20:30 (THU) 1. Outdoor unit error data START 2. Service contact 3.
  • Page 64 CZ-RTC4 (Timer remote controller) 1. Press and hold the button and button for 4 seconds or longer (simple settings mode). ° 2. “ALL” is displayed on the remote controller. ° At this time, the indoor unit fan (or all indoor unit fans in the case of group control) begins operating.
  • Page 65 7-5. Setting Test Run Remote Controller CZ-RTC5B (High-spec wired remote controller) 20:30 (THU) 1 Keep pressing the buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the LCD display. START Maintenance func 20:30 (THU) 1. Outdoor unit error data 2.
  • Page 66 7-6. Caution for Pump Down Pump down means refrigerant gas in the system is returned to the outdoor unit. Pump down is used when the unit is to be moved, or before servicing the refrigerant circuit. (Refer to the Service Manual) This outdoor unit cannot collect more than the rated refrigerant amount as shown by the ●...
  • Page 67 • If the alarm display “E15”, “E16” and “E20” appear after auto address setting began, check the following items. Alarm display Alarm contents Recognized number of indoor units at the time of auto address setting are fewer than that of indoor units set by SW3 and SW4 on outdoor main unit P.C.
  • Page 68 Remote control display Alarm contents The number of responding outdoor units does not match with the setting on the main outdoor unit. Improper wiring between main and sub outdoor units. No response from main outdoor unit. The outdoor unit is having error in sending serial communication signal on main-sub communication line. Error in communication inside outdoor unit control box.
  • Page 69 • Contents of alarm display on remote controller For the remote controller, there are other alarm contents listed on the following table besides the alarm display on outdoor main unit control P.C. board. Wired remote Detected contents control display Indoor unit does not respond to remote controller. <E01>...
  • Page 70 Alarm messages displayed on system controller Indoor or main outdoor unit is not operating correctly. Error in transmitting serial Mis-wiring of control wiring between indoor unit, main outdoor unit and communication signal Serial system controller. communication Indoor or main outdoor unit is not operating correctly. errors Error in receiving serial Mis-wiring of control wiring between indoor unit, main outdoor unit and...
  • Page 71 SUPPLEMENT 1. Combination with various type of outdoor units Unit: mm Dimensions of Dimensions of Dimensions of single unit installation Distance between unit Dimensions of single unit Distance between units combination unit combination unit hole installation hole Capacity installation hole E( * 1) E( * 2) F( * 1)
  • Page 72 2. Dimensions of Wind Ducting Reference diagram for air-discharge chamber (field supply) Can be installed so that the air direction is to the front or rear direction. According to the installation site, you may choose the setting position in the depth direction of the anchor bolt from “A”, “B” or “C”. Unit: mm 1003 Dimensions of air-discharge chamber...
  • Page 73 3. Dimensions of Snow Ducting Reference diagram for snow-proof vents (field supply) According to the installation site, you may choose the setting position in the depth direction of the anchor bolt from “A”, “B” or “C”. Unit: mm The snow-proof vents will be obtained at a local field. According to the installation site, you may choose the setting position in the depth direction of the anchor bolt from A, B or C.
  • Page 74 – NOTE –...
  • Page 75 – NOTE –...
  • Page 76 ACXF60-29141 Printed in Malaysia DC0418-20922...

Table of Contents