Refrigerant Piping; Drain Piping - Hitachi RPIL-0.4FSRE Installation & Operation Manual

REFRIGERANT PIPING

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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)
Upper ESP limit
High H / High
Med
Low
Air flow (m³/min)
?
N O T E
"High H" speed available only with PC-ARFP1E remote control switch.
5 REFRIGERANT PIPING
5.1 PIPING CONNECTION

6 DRAIN PIPING

6.1 GENERAL INFORMATION
!
C A U T I O N
• Do not create an upper-slope or rise for the drain piping, since drain
water will flow back to the unit and leakage to the room will occur
when the unit operation is stopped.
12 PMML0527 rev.1 - 02/2021
Standard static pressure (SP-00)
Lower ESP limit
Upper ESP limit
High H / High
Med
Low
Lower ESP limit
Air flow (m³/min)
PIPING CONECTION
Gas pipe
Liquid pipe
Drain pipe
5.2 PIPE SIZE SELECTION
Models
RPIL-(0.4-1.5)FSRE
- INCORRECT
Incorrect: upward slope
• Do not connect the drain pipe with sanitary or sewage piping or any
other drainage piping.
Low static pressure (SP-02)
Upper ESP limit
High H
Low
Air flow (m³/min)
Dimension (mm)
a1 b1
37 158
a2 b2
37 135
a3 b3
40 64
Pipe Size (mm)
Gas Piping Liquid Piping
Ø12.7 (1/2) Ø6.35 (1/4) Ø32 (Outer) VP25
Incorrect: rising part
Lower ESP limit
c1
96
c2
52
c3
66
Drain Piping