Panasonic cu-2e18sbu installation

Order No: PAPAMY1604017CE

Installation Manual

Outdoor Unit
CU-2E18SBU

Please file and use this manual together with the service manual for Model No. CS-ME5RKUA CS-ME7RKUA, CS-E9RKUA
CS-E12RKUA, CS-ME9SB4U, CS-E12RB4UW, CS-ME5SD3UA CS-ME7SD3UA, CS-E9SD3UAW CS-E12SD3UAW, Order No.
PAPAMY1503085CE, PAPAMY1501049CE, PAPAMY1604059CE, PAPAMY1503095CE, PAPAMY1604056CE,
PAPAMY1604052CE.

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

PRECAUTION OF LOW TEMPERATURE

In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

© Panasonic Corporation 2016

Item Unit OUTDOOR UNIT

Air Volume High m3/min (ft3/min) 41.0 (1447)

Refrigerant Control Device Expansion Valve

Refrigerant Oil cm3 FV50S (900)

Refrigerant (R410A) g (oz) 2.23k (78.7)

Dry Bulb Wet Bulb

Cooling

Indoor Operation Range

Heating

Cooling

Outdoor Operation Range

Heating

Maximum °C (°F) 32 (89.6) 23 (73.4)

Minimum °C (°F) 16 (60.8) 11 (51.8)

Maximum °C (°F) 30 (86.0) —

Minimum °C (°F) 16 (60.8) —

Maximum °C (°F) 46 (114.8) 26 (78.8)

Minimum °C (°F) -10 (14.0) — / —

Maximum °C (°F) 24 (75.2) 18 (64.4)

Minimum °C (°F) -15 (5.0) -16 (3.2)

Note

x Specifications are subject to change without notice for further improvement.

x Multi split combination possibility:

o A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E18SBU.

Outdoor Unit

CU-2E18SBU

A B

1.6 kW CS-ME5RKUA, CS-ME5SD3UA

2.0 kW CS-ME7RKUA, CS-ME7SD3UA

Wall

Capacity range of connectable indoor units From 3.2 kW to 6.4 kW

1 room maximum pipe length (m (ft)) 25 (82.0)

Allowable elevation (m (ft)) 15 (49.2)

Total allowable pipe length (m (ft)) 50 (164.0)

Total pipe length for maximum chargeless length (m (ft)) 20 (65.6)

Piping Length

Additional gas amount over chargeless length (g/m (oz/ft)) 20 (0.2)

Remarks for CU-2E18SBU

1. At least two indoor units must be connected.

2. The total nominal cooling capacity of indoor units that will be connected to outdoor unit must be within connectable capacity range of
indoor unit.
(as shown in the table above)
Example: The indoor units’ combination below is possible to connect to CU-2E18SBU. (Total nominal capacity of indoor units is between

3.2 kW to 6.4 kW)

1) Two CS-E9RKUAW only. (Total nominal cooling capacity is 5.0 kW)

2) One CS-E9RKUAW and one CS-E12RKUAW. (Total nominal cooling capacity is 5.7 kW)

x Specifications are subject to change without notice for further improvement.

2.5 kW CS-E9RKUAW, CS-ME9SB4U, CS-E9SD3UAW

3.2 kW CS-E12RKUAW, CS-E12RB4UW, CS-E12SD3UAW

Note: “

• •

• •

• •

• •

•” : Available

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9. Installation Information

9.1 Check Points

49.2 ft max.

82 ft
82 ft

Total maximum pipe length: 164 ft

QUICK GUIDE PIPING AND ELECTRICAL SPECIFICATION

Indoor (ID) &
Outdoor (OD)
units: Possible
Combination
Patterns

Outdoor (OD):
CU-2E18SBU
Indoor (ID): 2
UNITS OF CS­E9RKUAW
Outdoor (OD):
CU-2E18SBU
Indoor (ID): 2
UNITS OF CS­E12RKUAW
Outdoor (OD):
CU-2E18SBU
Indoor (ID): 1
UNIT OF CS­E9RKUAW +
1 UNIT OF
CS-E12RKUAW

Capacity

Refrige-

(Btu/h)

16700 R410A

rant

Piping size

Gas Liquid

Ø3/8”

(Ø9.52mm)

Ø1/4”

(Ø6.35mm)

Standard

pipe

length

24.6 ft

Min.

Max.

pipe

Max.

Eleva-

tion

See

Step 1

each ID

from

length

OD to

for

each

ID unit

unit

9.8 ft 82.0 ft 164.0 ft 65.6 ft

Max.

total

length

Min. total

pipe

length

for

additional

gas

Addi­tional

refri-

ge-

rant

0.2

oz / ft

Power
supply

208/230V

60 Hz

MCA 20A

MOP

25A

Power
supply

AWG12 AWFG16

wire
size

OD-ID

connection

wire size

Example:

If total piping length of all installed indoor units is at 68.6 ft, the quantity of additional refrigerant should be 0.6 oz ......

(68.6 - 65.6) ft x 0.2 oz/ft = 0.6 oz.

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