SMC Networks HRW002-H, Руководство по эксплуатации

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HRX-OM-K003
Chapter 3 Transporting and Installation
3.3 Procedure for Installation HRW Series
3-12
3.3.5 Installation of circulating fluid and facility water piping

Pipe diameter
Table 3-3 Pipe Diameter
Pipe Diameter
Recommended torque
(Material: SS* vs SS)
Facility water inlet Rc3/4
28 to 30N
•
m
(20.7 to 22.1ft-lbf)
Facility water outlet Rc3/4
28 to 30N
•
m
(20.7 to 22.1ft-lbf)
Circulating fluid supply Rc3/4
28 to 30N
•
m
(20.7 to 22.1ft-lbf)
Circulating fluid return Rc3/4
28 to 30N
•
m
(20.7 to 22.1ft-lbf)
Tank drain port Rc3/8 (with valve) Piping not necessary
Drain pan port Rc3/8 Piping not necessary
*: SS Stainless steel

Choose proper external piping with consideration for pressure,
temperature and compatibility with the circulating fluid. Potential pipe
rupture during operation may occur if disregarded.

Always insulate external circulating piping. Potential insufficient cooling
performance due to heat absorption from the pipe surface and potential
insufficient heating performance caused by thermal radiation if
disregarded.

Use clean pipes and pipe fittings, free of particles, oil and moisture.
Apply air blow to the parts before using. The presence of particles, oil or
moisture in the circulating fluid circuit causes system failure attributed to
insufficient cooling or froths in the circulating fluid in the tank.

Install circulating fluid piping not to exceed 10m high. The maximum
amount of circulating fluid in piping, including your system, should
remain under 2.5L if 7m or higher circulating fluid piping is installed (for
HRW

-
H, -HS). An alarm may be raised, or potential fluid leak from the
tank may occur at system stop if disregarded.

Be sure to choose a circulating fluid pipe capable of letting the fluid flow
at rated flow rate or better. See “Pump performance” defined in
“Appendix 8.1.1 System specification” for the flow rate rating.

Have a drip pan available incase of a fluid leak.

Make sure of the locations of ports for the circulating fluid supply, return,
facility water inlet, outlet and their corresponding connections are
correct.

Install valves in circulating fluid piping for flow rate adjustment and
maintenance. As the value of flow rate displayed on the screen will be
less than proper value when flow rate is excessive, flow rate adjustment
should be started with the valves shut.
See “Circulating fluid flow rate
display range
” defined in “Appendix 8.1.1 System specification” for the
flow rate display range.

Secure the piping connector section with a pipe wrench, and provide
proper tightening to the pipe.

Avoid physical shock when securing and tightening the connectors.
Potential breakage and fluid leak may occur if disregarded.