Setting Of External Static Pressure; Test Run; Safety And Control Device Setting - Hitachi air core 700 Operation Installation Maintenance Manual

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7.6 Setting of External Static Pressure

(1) This function is available for airCore 700 ducted indoor units, please refer to the " chapter25.ESP
Setting " of Installation & Maintenance Manual of the wired remote controller for details.
(2) The air flow volume can be changed according to the external static pressure by setting the item
code to "C5" from the wired remote controller, please refer to the " chapter6.Function Selection " of
Installation & Maintenance Manual of the wired remote controller for details.
Model
PPIM-2.0UFA1NQ
PPIM-2.5UFA1NQ
PPIM-3.0UFA1NQ
PPIM-4.0UFA1NQ
PPIM-5.0UFA1NQ
PPIM-6.0UFA1NQ

8. Test Run

Test run should be performed according to "Installation & Maintenance Manual" of the outdoor unit or
wired remote controller.
WARNING
!
Start the machine only after satisfying all the check points.
(a) Ensure that the terminal to the ground resistance is over 1 MΩ, if not, start the machine only after
finding and repairing the leakage points.
(b) Start the unit after ensuring that the stop valve of the outdoor unit has been opened.
(c) Ensure that the main power supply has been connected for more than 12 hours so that the heater
heats the compressor lubricant.
When the system operates, please pay attention to the following situations.
(a) Do not touch any parts of the exhaust end, as, while operating, the enclosure and pipeline of exhaust
end of the compressor can reach over 90°C.
(b) Do not press the AC contactor button, otherwise it will cause a serious accident.

9. Safety and Control Device Setting

The fuse capacity on the control circuit of an indoor unit
Protective temperature for freeze-proofing protection
Set the temperature difference
External Static Pressure
35Pa
100Pa
150Pa
50Pa
100Pa
150Pa
60Pa
100Pa
150Pa
Indoor Unit Capacity (HP)
-19-
Setting of Wired remote controller
00
01
02
00
01
02
00
01
02
250V
A
OFF
°C
ON
°C
°C
8. Test Run
2.0~6.0
10
0
14
2

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