HRX-OM-L014
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HRGC001-A HRGC002-A HRGC005-A
1
st
edition : Jun. 2007
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-10
3.3.3 Piping
Piping port size
The piping port size is common to all models.
Table 3-3 Piping port size
Name
Port size
Recirculating fluid discharge
Rc1/2
Recirculating fluid return
Rc1/2
Overflow port
Rc1/2
Tank drain port
Rc1/4
Faiclity water inlet (only for
HRGC00
∗
-W)
Rc1/2
Facility water outlet (only for
HRGC00
∗
-W)
Rc1/2
*For NPT and G thread, use a conversion connector available as an accessory separately.
How to connect piping
Hold the piping port firmly with a pipe wrench and tighten the piping.
Connect piping firmly. Incorrect piping might cause leakage of
supplied or drained leakage and wet surrounding area and facility.
Keep supply water pressure below 0.5MPa.
Be sure to correctly connect IN and OUT of recirculating fluid
and
cooling water (only for HRGC00
∗
∗
∗
∗
-W).
The reverse connection
might prevent the unit from operating properly.
Pay attention not to allow dust and foreign materials to enter into
water circuit etc. during connection of piping.
Hold connected port of the piping with specific wrench for
tightening.
The piping should be selected with due consideraton of and
temperature. Otherwise, the piping can burst in service.
Fig. 3-7 Tightening of piping
Piping port
28
~
30Nm