Panasonic U-36LE1U6 Installation Instructions Manual
Mini vrf system air conditioner
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- Technical data manual (150 pages) ,
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INSTALLATION INSTRUCTIONS
Mini VRF System Air Conditioner
This air conditioner uses the refrigerant R410A.
External diameter of service port R410A: 5/16"
NOTE
Model No.
Outdoor Units
Type
Outdoor Unit Type
U-36LE1U6
U
Mini VRF System
U-36LE1U6E*
* Salt-Air Damage Resistant Specifications.
Indoor Units
Type
Indoor Unit Type
D1
1-Way Cassette
U1
4-Way Cassette
Y1
4-Way Cassette 60 × 60
K1
Wall Mounted
T1
Ceiling
F1
Low Silhouette Ducted
M1
Slim Low Static Ducted
E1
High Static Pressure Ducted
P1
Floor Standing
R1
Concealed Floor Standing
Type
Indoor Unit Type
D1
1-Way Cassette
U1
4-Way Cassette
Y1
4-Way Cassette 60 × 60
K1
Wall Mounted
T1
Ceiling
F1
Low Silhouette Ducted
M1
Slim Low Static Ducted
E1
High Static Pressure Ducted
P1
Floor Standing
R1
Concealed Floor Standing
1
*
Necessary to install the External Electronic Expansion Valve Kit (Optional : CZ-P56SVK1U)
85464369529010
36
52
U-52LE1U6
U-52LE1U6E*
7
9
S-07MD1U6
S-09MD1U6
S-07MK1U6
S-09MK1U6
S-07MF1U6
S-09MF1U6
S-07MM1U6
S-09MM1U6
S-07MP1U6
S-09MP1U6
S-07MR1U6
S-09MR1U6
19
24
S-24MU1U6
1
S-19MS1U6*
S-24MK1U6
S-24MT1U6
S-24MF1U6
S-24MP1U6
S-24MR1U6
12
15
S-12MD1U6
S-12MU1U6
S-18MU1U6
S-12MY1U6
S-18MY1U6
S-12MK1U6
S-18MK1U6
S-12MT1U6
S-18MT1U6
S-12MF1U6
S-15MF1U6
S-18MF1U6
S-12MM1U6
S-15MM1U6
S-18MM1U6
S-12MP1U6
S-15MP1U6
S-18MP1U6
S-12MR1U6
S-15MR1U6
S-18MR1U6
36
48
S-36MU1U6
S-36MF1U6
S-48MF1U6
S-54MF1U6
S-36ME1U6
S-48ME1U6
18
54
CV6233186870
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Table of Contents
Related Manuals for Panasonic U-36LE1U6
Summary of Contents for Panasonic U-36LE1U6
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Page 1: Installation Instructions
Mini VRF System Air Conditioner This air conditioner uses the refrigerant R410A. External diameter of service port R410A: 5/16" NOTE Model No. Outdoor Units Type Outdoor Unit Type U-36LE1U6 U-52LE1U6 Mini VRF System U-36LE1U6E* U-52LE1U6E* * Salt-Air Damage Resistant Specifications. Indoor Units Type... -
Page 2: Important
IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and oper- When Installing… ating standards. As the installer or service person, it is an Select an installation location which is rigid and strong important part of your job to install or service the system so enough to support or hold the unit, and select a location it operates safely and efficiently. -
Page 3: Check Of Density Limit
• Do not touch the air inlet or the When Servicing CAUTION sharp aluminum fins of the • Turn the power OFF at the main power box (mains) outdoor unit. You may get injured. before opening the unit to check or repair electrical •... -
Page 4: Precautions For Installation Using New Refrigerant
Precautions for Installation Using New Refrigerant 1. Care regarding tubing 1-1. Process tubing ● Material: Use C1220 phosphorous deoxidized copper specified in JIS H3300 “Copper and Copper Alloy Seamless Pipes and Tubes.” ● Tubing size: Be sure to use the sizes indicated in the table below. ●... - Page 5 3-2. Use R410A exclusive cylinder only. Valve Single-outlet valve (with siphon tube) Liquid refrigerant should be recharged with the cylinder standing on end as shown. Liquid New refrigerant R410A cannot be used for earlier models 1. Compressor specifications are different. If recharging a R22 or R407C compressor with R410A, durability will significantly decrease since some of the materials used for compressor parts are...
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Page 6: Table Of Contents
CONTENTS Page Page IMPORTANT ......2 4. ELECTRICAL WIRING ....22 4-1. -
Page 7: General
See Table 1-1. 4. Refrigeration tubing lubricant 5. Clamps or saddles to secure refrigerant tubing 6. Scale for weighing Table 1-1 (Outdoor Unit) Q’ty Part name Figure U-36LE1U6 U-52LE1U6 U-36LE1U6E U-52LE1U6E (4 hp) (6 hp) Tube Discharge Assy Instruction manual... -
Page 8: Tubing Size
1-5. Tubing Size Table 1-2 Main Tubing Size (LA) BTU/h (kW) 38,200 (11.2) 52,900 (15.5) System horsepower Gas tubing ø5/8" (ø15.88) ø3/4" (ø19.05) Liquid tubing ø3/8" (ø9.52) Unit: in. (mm) Note: If the system consists of only one indoor unit with an outdoor 6HP (Type 52), the main tube of the unit (LA) should be ø19.05. Convert ø19.05 to ø15.88 using a reducer (field supply) close to the indoor unit and then make the connection. -
Page 9: System Limitations
Table 1-8 Refrigerant Charge Amount at Shipment (for outdoor unit) U-36LE1U6 U-52LE1U6 Heat pump unit U-36LE1U6E U-52LE1U6E (Single-phase) (oz) 1-8. System Limitations Table 1-9 System Limitations U-36LE1U6 U-52LE1U6 Outdoor units U-36LE1U6E U-52LE1U6E Number of max. connectable indoor units Max. allowable indoor/outdoor capacity ratio 50 –... -
Page 10: Check Of Limit Density
Always check the gas density Tube branching methods (horizontal use) WARNING limit for the room in which the unit is installed. 1-10. Check of Limit Density When installing an air conditioner in a room, it is neces- sary to ensure that even if the refrigerant gas accidentally Horizontal line leaks out, its density does not exceed the limit level for... -
Page 11: Optional Distribution Joint Kit
1-12. Optional Distribution Joint Kit See the installation instructions packaged with the distribution joint kit for the installation procedure. Table 1-11 Model name Cooling capacity after distribution Remarks CZ-P160BK1U 76,400 BTU/h (22.4 kW) or less For indoor unit CZ-P160BK1U Use: For indoor unit (Capacity after distribution joint is 76,400 BTU/h (22.4 kW) or less.) Example Gas tube Liquid tube... -
Page 12: Example Of Tubing Size Selection And Refrigerant Charge Amount
1-13. Example of Tubing Size Selection and Refrigerant Charge Amount Additional refrigerant charging Based on the values in Tables 1-2, 1-3, 1-4 and 1-7, use the liquid tubing size and length, and calculate the amount of additional refrigerant charge using the formula below. Required additional = 0.602 ×... -
Page 13: Refrigerant Charge Amount
Example: Main tube of unit 1st branch 18 type n–1 Unit distribution tube 7 type 9 type 12 type 18 type ● Example of each tubing length Main tubing Distribution joint tubing LA = 131 ft. Indoor side LB = 16 ft. 1 = 16 ft. -
Page 14: Selecting The Installation Site
2. SELECTING THE INSTALLATION SITE Exhaust fan 2-1. Outdoor Unit Hot air AVOID: Heat source ● heat sources, exhaust fans, etc. (Fig. 2-1) Out- ● damp, humid or uneven locations door unit ● choose a place as cool as possible. ●... -
Page 15: Air-Discharge Chamber For Top Discharge
2-2. Air Discharge Chamber for Top Discharge Be sure to install an air discharge chamber (field sup- Air discharge ply) in the field when: ● it is difficult to keep a space of min. 20 in. between the air discharge outlet and an obstacle. ●... -
Page 16: Dimensions Of Air-Discharge Chamber
2-5. Dimensions of Air-Discharge Chamber Reference diagram for air-discharge chamber (field supply) Unit front, air discharge chamber Unit left side, air discharge chamber Unit right side, air discharge chamber Reinforcement brackets, 4 locations 9-7/16 1-1/8 1-1/8 9-7/16 Rectangular Rectangular hole hole Rectangular Rectangular... -
Page 17: Air-Discharge Chamber (Field Supply
Reference for air-discharge chamber (field supply) Required space around outdoor unit If an air discharge chamber is used, the space shown below must be secured around the outdoor unit. If the unit is used without the required space, a protective device may activate, preventing the unit from operating. (1) Single-unit installation Unit: in. -
Page 18: Dimensions Of Snow Ducting
2-7. Dimensions of Snow Ducting Reference diagram for snow-proof ducting (field supply) Fastened by screws at 13 locations 30-3/32 Unit top, snow-proof vent Unit left side Unit right side Unit reverse side Unit: in. 25-13/32 11-7/8 17-15/32 3-3/4 19-11/16 3-31/32 Fastened by screws at 3 locations (also on reverse side) 1-3/16... - Page 19 Reference diagram for snow-proof ducting – 1 Space requirements for setting – (1) [Obstacle to the front of unit] [Obstacle to the rear of unit] ● ● Top is open: Top is open: (1) Single-unit installation (2) Obstacles on both sides (1) Single-unit installation Min.
- Page 20 Reference diagram for snow-proof ducting – 2 Space requirements for setting – (2) [Obstacles to the front and rear of unit] ● The top and both sides must remain open. Either the obstacle to the front or the obstacle to the rear must be no taller than the height of the outdoor unit. (1) Single-unit installation Dimension Q If a snow protection duct is attached after the unit is...
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Page 21: How To Install The Outdoor Unit
3. HOW TO INSTALL THE OUTDOOR UNIT 3-1. Installing the Outdoor Unit ● Use concrete or a similar material to create the base, and ensure good drainage. ● Ordinarily, ensure a base height of 2" or more. If a drain pipe is used, or for use in cold-weather regions, ensure a height of 6"... -
Page 22: Electrical Wiring
4-2. Recommended Wire Length and Wire Diameter for Power Supply System Outdoor unit Time delay fuse or Type Power supply wiring circuit capacity U-36LE1U6 30 A U-36LE1U6E For field wiring rules, please refer to your LOCAL ELECTRICAL CODES U-52LE1U6 50 A... -
Page 23: Diameter For Power Supply System
4-3. Wiring System Diagram Indoor unit (No. 1) Outdoor unit Power supply INV unit 208 / 230V, 60Hz, 1-PH Power supply Ground 208 / 230V, 60Hz, 1-PH Remote Controller Ground Indoor * Disconnect switch unit (No. 2) * NOTE: (Field Supply) Power supply 208 / 230V, 60Hz, 1-PH Disconnect Switch may be needed by the... - Page 24 CAUTION (1) When linking outdoor units in a network, disconnect the terminal extended from the short plug (CN003, 2P Black, location: right bottom on the outdoor main control PCB) from all outdoor units except any one of the outdoor units. (When shipping: In shorted condition.) For a system without link (no connection wiring between outdoor units), do not remove the short plug.
- Page 25 Loose wiring may cause WARNING 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 the terminal” and fasten the wire securely with the fixing screw of the terminal plate.
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Page 26: How To Process Tubing
5. HOW TO PROCESS TUBING Deburring 5-1. Connecting the Refrigerant Tubing Before After 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 copper tubes are flared at each end and connected with flare nuts. -
Page 27: Connecting Tubing Between Indoor And Outdoor Units
Caution Before Connecting Tubes Tightly (1) Apply a sealing cap or water-proof tape to prevent dust or water from entering the tubes before they are used. Apply refrigerant (2) Be sure to apply refrigerant lubricant to the matching lubricant surfaces of the flare and union before connecting them together. -
Page 28: Insulating The Refrigerant Tubing
5-3. Insulating the Refrigerant Tubing Two tubes arranged together Liquid tubing Gas tubing Tubing Insulation ● Thermal insulation must be applied to all unit tubing, including distribution joint (purchased separately). * For gas tubing, the insulation material must be heat resistant to 248°F or above. -
Page 29: Taping The Tubes
5-4. Taping the Tubes (1) At this time, the refrigerant tubes (and electrical wiring if local codes permit) should be taped together with armoring tape in 1 bundle. To prevent the condensation from overflowing the drain pan, keep the drain hose separate from the refrigerant tubing. -
Page 30: Air Purging
6. AIR PURGING Manifold gauge Air and moisture in the refrigerant system may have undesirable effects as indicated below. ● pressure in the system rises ● operating current rises ● cooling (or heating) efficiency drops ● moisture in the refrigerant circuit may freeze and block capillary tubing ●... - Page 31 (3) Do a leak test of all joints of the tubing (both indoor and outdoor) and both gas tube and liquid tube service valves. Bubbles indicate a leak. Wipe off the soap with a Manifold valve clean cloth after the leak test. (4) After the system is found to be free of leaks, relieve the Pressure nitrogen pressure by loosening the charge hose...
- Page 32 Use a cylinder designed for CAUTION Manifold valve use with R410A. Pressure Charging additional refrigerant gauge ● Charging additional refrigerant (calculated from the liquid tube length as shown in Section 1-7 Valve “Additional Refrigerant Charge”) using the liquid tube service valve. (Fig. 6-5) ●...
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Page 33: Test Run
7. TEST RUN 7-1. Preparing for Test Run ● Before attempting to start the air conditioner, check the following. (1) All loose matter is removed from the cabinet, especially steel filings, bits of wire, and clips. (Power must be turned ON at least 5 hours before (2) The control wiring is correctly connected and all attempting test run) -
Page 34: Test Run Procedure
7-2. Test Run Procedure Items to Check Before the Test Run 1. Turn the remote power switch on at least 5 hours before the test, in order to energize the crankcase heater. 2. Turn the outdoor service valves (2 locations) to the full-open positions. ●... -
Page 35: Outdoor Unit Pcb Setting
7-3. Outdoor Unit PCB Setting CN33 CN51 CN50 S003 S002 D043 (LED2) S004 D042 (LED1) Fig. 7-4... - Page 36 Examples of the No. of indoor units settings Indoor unit setting (S004) No. of indoor units (Rotary switch, red) 1 unit (factory setting) Set to 1 2 units Set to 2 9 units Set to 9 Examples of refrigerant circuit (R.C.) address settings (required when link wiring is used) System address (S003) System address (S002) System address No.
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Page 37: Auto Address Setting
7-4. Auto Address Setting Basic wiring diagram: Example (1) • If link wiring is not used (The inter-unit control wires are not connected to multiple refrigerant systems.) Indoor unit addresses can be set without operating the compressors. No. 1 unit settings (S004) System address No. - Page 38 Basic wiring diagram: Example (2) If link wiring is used * When multiple outdoor units exist, remove the socket that is used to short-circuit the terminal plug (CN33) from all outdoor unit PCBs except for 1. Alternativel y , move the sockets to the “OPEN” side . No.
- Page 39 Case 1 Automatic Address Setting (no compressor operation) ● Indoor and outdoor unit power can be turned ON for each system separately. Indoor unit addresses can be set without operating the compressors. Automatic Address Setting from Outdoor Unit 1. On the outdoor unit control PCB, check that the system address rotary switch (S002) is set to “1” and that the DIP switch (S003) is set to “0.”...
- Page 40 Case 2 Automatic Address Setting in Heating Mode ● Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work.
- Page 41 Case 3 Automatic Address Setting in Cooling Mode ● Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work.
- Page 42 Display during automatic address setting ● On outdoor unit PCB * Do not short-circuit the automatic address setting pin (CN51) again while automatic address setting is in progress. Doing so will cancel the setting operation and will cause LEDs 1 and 2 to turn OFF. Blink alternately * When automatic address setting has been successfully completed, both LEDs 1 and 2 turn OFF.
- Page 43 Checking the indoor unit addresses Use the remote controller to check the indoor unit address. <If 1 indoor unit is connected to 1 remote controller> 1. Press and hold the button and button for 4 seconds or longer (simple settings mode). 2.
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Page 44: Caution For Pump Down
7-5. 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. ● This outdoor unit cannot collect more than the rated refrigerant amount as shown CAUTION by the nameplate on the back. - Page 45 Alarm Possible cause of malfunction message This alarm message shows when the indoor unit for multiple-use Serial Improper setting. is not connected to the outdoor unit. communication errors Duplication of main indoor unit address setting in group control. <L03> Mis-setting Duplication of outdoor R.C.
- Page 48 DC0811-0 Printed in Japan...