Fan Speed Availability According To Selected External Static Pressure; Static Pressure Setting; Refrigerant Piping Connection; Size Of Piping Connection - Hitachi RPI-xxxFSN5E Series Installation And Operation Manual

REFRIGERANT PIPING CONNECTION

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Fan speed availability according to the selected external static pressure
According to the selected of External Static Pressure configuration (through the optional function C5) the fan speeds available in the
Remote Control Switch are the ones show as example in the following pictures.
High static pressure (SP-01)
Air flow (m³/min)
?
N O T E
"High H" speed available only with PC-ARFP(1)E remote control switch.

3.1.4 Static pressure setting

RPI units have been provided by three Static Pressure levels regulation depending on the installation requirements.
High Static Pressure, Standard Static Pressure (Factory setting) and Low Static Pressure conditions are available.
Static Pressure setting shall be made from the Remote Control Switch. For changing to High and Low Static Pressure level, refer to
Installation and Operation Manual remote control.
4 REFRIGERANT PIPING CONNECTION
Position of piping connection is the following:
RPI-(0.4-1.5)FSN5E
Liquid piping connection

4.1 SIZE OF PIPING CONNECTION

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Piping size
Model RPI 0.4-1.5
Ø 12.7
Gas piping
(1/2")
12 PMML0385 rev.2 - 12/2018
Standard static pressure (SP-00)
Gas piping connection
Drain pipe
connection
mm (in)
2.0 2.5/3.0 4.0-6.0
Ø 15.88 Ø 15.88 Ø 15.88
(5/8") (5/8") (5/8")
Air flow (m³/min)
RPI-(2.0-6.0)FSN5E
Liquid piping connection
2.0 - 3.0 HP
a
b
c
Model RPI 0.4-1.5
Ø 6.35
Liquid piping
(1/4")
Low static pressure (SP-02)
Air flow (m³/min)
mm (±2)
Gas piping connection
Drain pipe
connection
4.0 - 6.0 HP
192 198
167 173
132 138
2.0 2.5/3.0
Ø 6.35 Ø 9.52
(1/4") (3/8")
mm (in)
4.0-6.0
Ø 9.52
(3/8")