Panasonic U-72ME2U94 Installation Instructions Manual

NOTE External diameter of service port R410A: 5/16" (7.94mm) Model No. Outdoor Units Type Outdoor Unit Type Nominal Capacity ME2 2WAY VRF System 72 96 120 144 U-72ME2U9 U-96ME2U9 U-120ME2U9 U-144ME2U9 U-72ME2U94 U-96ME2U94 U-120ME2U94 U-144ME2U94 • To be connecting Indoor Unit Indoor Units Type Indoor Unit Type Nominal Capacity 7 9 12 15 18 24 36 48 54 U2 4-Way ...

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free operation, you must: ● Carefully read this instruction booklet before beginning. ● Follow each installation or repair step exactly as shown. ● This air cond ...

installation or re-installation, and while repairing refrigeration parts. Handle liquid refrigerant carefully as it may cause frostbite. When Servicing • Turn the power OFF at the main power box (mains) before opening the unit to check or repair electrical parts and wiring. • Keep your fingers and clothing away from any moving parts. • Clean up the site after you finish, remembering to check that ...

1. Care regarding tubing 1-1. Process tubing l 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. l Tubing size: Be sure to use the sizes indicated in the table below. l Use a tube cutter when cutting the tubing, and be sure to remove any flash. ...

Single-outlet valve (with siphon tube) Liquid refrigerant should be recharged with the cylinder standing on end as shown. 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 different. 2. Existing tubing cannot be used (e ...

Please Read Before Starting Check of Density Limit Precautions for Installation Using New Refrigerant New refrigerant R410A cannot be used for earlier models 1. GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1-1. Tools Required for Installation (not supplied) 1-2. Accessories Supplied 1-3. Type of Copper Tube and Insulation Mater ...

1. Flathead screwdriver 2. Phillips head screwdriver 3. Knife or wire stripper 4. Tape measure 5. Level gauge 6. Sabre saw or keyhole saw 7. Hacksaw 8. Core bits 9. Hammer 10. Drill 11. Tube cutter 12. Tube flaring tool 13. Torque wrench 14. Adjustable wrench 15. Reamer (for deburring) 1-2. Accessories Supplied See Table 1. 1-3. Type of Copper Tube and Insulation Materia ...

Select the installation location so that the length and size of refrigerant tubing are within the allowable range show in the figure below. NOTE * Be sure to use special R410A distribution joints (CZ: optional parts) for outdoor unit connections and tubing branches. Table 1-2 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights unit: ft. (m) Item Mark Contents Length Allowable tubing length L1 Max ...

Table 1-3 Main Tubing Size (LA) Between No.1 distribution joint for outdoor unit and No.1 distribution joint (for indoor unit) Unit: in. (mm) BTU/h (kW) 72,000 (21.1) 96,000 (28.1) 120,000 (35.2) 144,000 (42.2) 168,000 (49.2) 192,000 (56.3) 216,000 (63.3) 240,000 (70.3) 264,000 (77.4) 288,000 (84.4) 312,000 (91.4) 336,000 (98.4) 360,000 (105.5) Total system tonnage 6 8 10 12 14 16 18 20 22 24 26 28 30 Gas tubing ø3/4" (ø19.05) ø7/8" ...

Design the tubing system by referring to the following table for the straight equivalent length of joints. Table 1-8 Straight Equivalent Length of Joints Unit: ft. (m) Gas tubing size (in. (mm)) 1/2" (12.7) 5/8" (15.88) 3/4" (19.05) 7/8" (22.22) 1-1/8" (28.58) 1-3/8" (34.92) 1-5/8" (41.28) 90° elbow 1 (0.30) 1.1 (0.35) 1.4 (0.42) 1.6 (0.48) 1.9 (0.57) 2.5 (0.76) 2.8 (0.85) 45° elbow 0.8 (0.23) 0.9 (0.26) 1 ...

Table 1-11 System Limitations Max. No. allowable connected outdoor units 3 *2 Max. capacity allowable connected outdoor units 360,000 BTU/h (30 ton, 105.5 kW) Max. connectable indoor units 64 *1 Max. allowable indoor/outdoor capacity ratio 50 – 200 % *3 *1: In the case of 18 ton (63.3kW) 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 the sys ...

CAUTION CAUTION Pay special attention to any location, such as a basement, etc., where leaking refrigerant can accumulate, since refrigerant gas is heavier than air. (1) Refer to “HOW TO ATTACH DISTRIBUTION JOINT” enclosed with the optional distribution joint kit (CZ-P680PJ1U, CZ-P1350PJ1U, CZ-P160BK1U, CZ-P680BK1U, CZ-P1350BK1U). ● When connecting a branch tubing to the indoor unit directly, it is necessary ...

See the installation instructions packaged with the distribution joint kit for the installation procedure. Table 1-12 Model name Cooling capacity after distribution Remarks 1. CZ-P680PJ1U 232,000 BTU/h (68.0 kW) or less For outdoor unit 2. CZ-P1350PJ1U more than 232,000 BTU/h (68.0 kW) For outdoor unit 3. CZ-P160BK1U 76,400 BTU/h (22.4 kW) or less* For indoor unit 4. CZ-P680BK1U 232,000 BTU/h (68.0 kW) or less* For ...

4-21/64 (110) 4-21/64 (110) (97) 3-13/16 3-13/16 (97) 2-53/64 (72) 2-53/64 (72) B A D B B C C C D E A C D E C Example: Gas tubing Liquid tubing Distribution Joint Distribution Joint Insulation Insulation Unit: in. (mm) Table 1-15 Size of connection point on each part (Shown are inside diameters of tubing) Size Part A Part B Part C Part D Pa ...

Additional refrigerant charging Based on the values in Tables 1-3, 4, 5, 7, 10-1 and 10-2, use the liquid tubing size and length, and calculate the amount of additional refrigerant charge using the formula below. Unit of account (oz) Required additional refrigerant charge (oz) = Necessary Amount of Additional Refrigerant Charge Per Outdoor Unit + 3.93 × (a) + 2.78 × (b) + 1.99 × (c) ...

Main tubing LA = ø5/8 (in.) (Total capacity of indoor unit is 179,400 BTU/h (52.6kW)) LB = ø1/2 (in.) (Total capacity of indoor unit is 131,600 BTU/h (38.6kW)) LC = ø3/8 (in.) (Total capacity of indoor unit is 83,800 BTU/h (24.6kW)) Distribution joint tubing Outdoor side A: ø3/8 (in.) B: ø3/8 (in.) (from outdoor unit connection tubing) Indoor side 1: ø3/8 (in.) 2: ø3/8 (in.) 3: ø3/8 ...

2-1. Outdoor Unit AVOID: l heat sources, exhaust fans, etc. l damp, humid or uneven locations l indoors (no-ventilation location) DO: l choose a place as cool as possible. l choose a place that is well ventilated. l allow enough room around the unit for air intake/exhaust and possible maintenance. l use lug bolts or equal to bolt down unit, reducing vibration and noise. Exhaust fan Hot air Heat source Out- doo ...

It is necessary to install an air-discharge chamber (field supply) to direct exhaust from the fan horizontally if it is difficult to provide a minimum space of 7 ft. (2m) between the air- discharge outlet and a nearby obstacle. CAUTION CAUTION In regions with heavy snowfall, the outdoor unit should be provided with a solid, raised platform and snow-proof ducting (field supply). 2-3. Installing the Outdoor ...

Reference diagram for air-discharge chamber (field supply) For type 72/96 Note: Can be installed so that the air direction is to the front or rear direction. For type 120/144 Note: Can be installed so that the air direction is to the front or rear direction. 30-5/16 27-43/64 (703) 29-29/64 (748) 30-35/64 (776) (776) 101-3/16 (2570) 101-3/16 (2570) 28-55/64 (733) 28-55/64 (733) 39-31/64 (1003) 39-31/64 (1003) 5/64 (2) 3/6 ...

Combination of units For various types of combination, refer to Technical Data. unit: in. (mm) J K E G E J K G J K F H M L D L M D L M F I I 101-3/16 (2570) 28-55/64 (733) 39-31/64 (1003) 3/64 (1) 5/64 (2) Top view (Before installing air-discharge chamber) Top view C : 28-47/64 (730) Installation hole pitch B : 28-47/64 (730) Installation hole pitch downward tubing direction A : 37-6 ...