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

7.5 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
PPIH-3.0UFA1NQ
PPIH-4.0UFA1NQ
PPIH-5.0UFA1NQ
PPIH-6.0UFA1NQ
PPIH-6.5UFA1NQ

8. Test Run

Test run should be performed according to "Installation & Maintenance Manual" of the outdoor unit or
wired remote controller.
WARNING
!
•
Do not operate the system until all the check points have been cleared.
(a) Check to ensure that the electrical resistance is more than 1 megohm, by measuring the resistance
between ground and the terminal of the electrical parts. If not, do not operate the system until the
electrical leakage is found and repaired.
(b) Check to ensure that the stop valves of the outdoor unit are fully opened, and then start the system.
(c) Check to ensure that the switch on the main power source has been ON for more than 12 hours, to
warm the compressor oil by the crankcase heater.
•
Pay attention to the following items while the system is running.
(a) Do not touch any of the parts by hand at the discharge gas side, since the compressor chamber and
the pipes at the discharge side are heated higher than 90°C.
(b) DO NOT PUSH THE BUTTON OF THE MAGNETIC SWITCH(ES). It will cause a serious accident.

9. Safety and Control Device Setting

Indoor Unit
For Control Circuit Fuse Capacity
Freeze Protection Thermostat
Thermostat Differential
External Static Pressure
150Pa
200Pa
35Pa
150Pa
200Pa
50Pa
150Pa
200Pa
60Pa
Model
A
Cut-Out °C
Cut-In °C
°C
-20-
Setting of Wired remote controller
PPIH-(3.0-4.0)UFA1NQ PPIH-(5.0-6.5)UFA1NQ
10
0
14
2
8. Test Run
00
01
02
00
01
02
00
01
02
20