How To Select Ahu System - Panasonic S-36PU1E5A Technical Data & Service Manual

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1-12. How to select AHU system

AHU system selection guideline
System lineup
Capacity
10 kW
12.5 kW
14 kW
* Single connection type only
* Mix connection with standard indoor units is not allowed.
* The system is applicable to the above models.
System Overview
Single connection
A AHU kit controller box (with control PCB)
B AHU equipment (Field supplied)
C AHU kit controller (Option parts)
D Outdoor unit
E Gas piping (Field supplied)
F Liquid piping (Field supplied)
Piping design regulation
Connecting pipe dimension to heat exchanger of AHU
Capacity
10-14kW
System piping length (Charging with refrigerant)
At the time of shipment from the factory, the outdoor unit is charged with enough refrigerant for an equivalent
pipe length of 30m.
If the equivalent piping length used is 30m or less, no additional charge will be necessary.
If the equivalent piping length is between 30 and 50m, charge with additional refrigerant according to the
equivalent length given in the following table.
Capacity
10-14kW
Outdoor combination
U-100PE1E8A U-100PE1E5A
U-125PE1E8A U-125PE1E5A
U-140PE1E8A U-140PE1E5A
Model name
CZ-280PAH1
Additional charge amount
50g/m
Connectable AHU-kit combination
CZ-280PAH1 CZ-280PAH1
CZ-280PAH1 CZ-280PAH1
CZ-280PAH1 CZ-280PAH1
G Thermistor for Liquid pipe (E1)
H Thermistor for Heat exchanger pipe middle (E2)
I Thermistor for Suction air (TA)
J Inter-unit wiring
K Magnetic relay for operating the blower (Field supplied)
Liquid pipe Gas pipe
ø9.52mm ø15.88mm
Equivalent length Minimum length
50m
1-372
Strainer (Liquid pipe &
Gas pipe) Min. ø25.4,
#100 (Field supply)
5m