172-65702M-04 (SQ-C01) 10 Dec 2020
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(1) Steam Supply Unit
1)
(4) Mixing Unit
(5) Hot Water Outlet Unit
(8) Steam Trap
2)
(6) Line Relief Unit
(2) Heat Exchanger Unit
Pressure Gauge Unit *
(7) Strainer
(Steam Side: Optional
）
(3) Pre-mixing Valve
(9) Pre-mixing Unit
The recommended maintenance cycles in the table are examples. The
recommended maintenance cycle differs depends on the usage and operation
frequency.
Parts that have a standard replacement period of one year are particularly important
devices related to safety. Make sure to perform maintenance within the maintenance
cycle.
For replacement maintenance, make sure to replace internal parts of entire
components and not of their individual parts. Installation/removal of the pipe thread
(taper thread) may be difficult as a sealant is used to prevent water leakage.
1)
When replacing only internal parts of the pressure reducing valve, refer to the instruction
manual for DR20.
2)
Refer to the steam trap instruction manual for the maintenance procedure.
Component Replacement Procedure
The procedure for maintenance (part replacement) of (1) to (11) in the figure on the
previous page is described below. Gaskets required for replacement are included in
the maintenance kit (unit).
(1) Steam Supply Unit
Components required: (1) Steam Supply
Unit × 1
1) Remove the flange connected to the
steam piping. Be careful as the
condensate may flow out.
2) Loosen the union connected to the heat
exchanger unit.
3) Loosen the U bolt nuts in two locations
fixing the steam supply unit to the base
and remove the U bolt.
4) Remove the steam supply unit, holding
it with two hands. If the pressure gauge
