Installation Instruction; Select The Best Location - Panasonic CU-4E23QBR Service Manual

11. Installation Instruction

11.1 Select the Best Location

(For CU-4E27QBR and CU-5E34QBR only)

If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from
the condenser is not obstructed.

There should not be any animal or plant which
could be affected by hot air discharged.

Keep the spaces indicated by arrows from wall,
ceiling, fence or other obstacles.

Do not place any obstacles which may cause a
short circuit of the discharged air.
Refrigerant piping size
Outdoor Unit
Liquid - side
Gas - side
* In case of indoor is CS-MRE24***, then ø 12.7
t0.8 gas-pipe size must be used together with
CZ-MA2P (pipe size expander)
Outdoor Unit
Equivalent length

If total piping length of all indoor units exceeds the
equivalent length listed aboved, additionally
charge with 20 g of refrigerant (R410A) for each
additional meter of piping.
Outdoor Unit
Allowable piping length of each indoor unit (min. ~ max.)
Allowable total piping length of all indoor unit
Height difference between indoor and outdoor unit
Height difference between indoor unit
CU-4E27*** CU-5E34***
ø 6.35 t0.8 ø ø 6.35 t0.8
ø 9.52 t0.8 ø 9.52 t0.8
*(ø 12.7 t0.8) *(ø 12.7 t0.8)
CU-4E27*** CU-5E34***
45 m 45 m
Allowable piping length
Outdoor unit located on upper side
Outdoor unit located otherwise
Outdoor unit located on upper side
Outdoor unit located otherwise
a
b
c
d
46
CU-4E27*** CU-5E34***
3 m ~ 25 m 3 m ~ 25 m
70 m or less 80 m or less
15 m or less 15 m or less
7.5 m or less 7.5 m or less
7.5 m or less 7.5 m or less
15 m or less 15 m or less