Table of Contents
Advertisement
Installation Mechanical
Water Piping
Figure 13. Typical water piping setup
Shutoff
Valves
Isolation
Valves
Evap
Water
Flow
Pressure
Differential
Gauge
General
Note: Field piping must be arranged and supported to
avoid stress on the equipment. It is strongly
recommended that the piping contractor provide at
least 3 feet (914 mm) of clearance between the pre-
installation piping and the planned location of the
unit. This will allow for proper fit-up upon arrival of
the unit at the installation site. All necessary piping
adjustments can be made at that time. Refer to the
current engineering bulletin for further details on
installation.
•
Where specified, supply and install valves in the water
piping upstream and downstream of the evaporator
and condenser water boxes, to isolate the shells for
maintenance and to balance/trim the system.
•
Supply and install condenser water control valve(s) per
Engineering Bulletin RLC-PRB017*-EN.
•
Supply or locate ship-with flow switches. Install flow
switches or equivalent devices in both the chilled water
and condenser water piping. Wire the flow switches
30
Relief
Valve
Manifold
Flow
Switch
Thermometers
Shutoff
Relief
Valves
Valve
Manifold
Thermometers
into the control system as indicated on the electrical
schematics and field wiring diagrams, to ensure that
the unit can only operate when water flow is
established.
•
Supply and install taps for thermometers and pressure
gauges in water piping, adjacent to the inlet and outlet
connections of both the evaporator and the condenser.
•
Supply and install drain valves on each water box.
•
Supply and install vent cocks on each water box.
•
Where specified, supply and install strainers ahead of
all pumps and automatic modulating valves.
•
Supply and install refrigerant pressure relief piping
from the pressure relief to the atmosphere.
•
If necessary, supply enough refrigerant and dry
nitrogen (75 psig) for pressure testing.
•
Where specified, supply and insulate the evaporator
and any other portion of the unit, as required, to
prevent sweating under normal operating conditions.
Cond Water
Ref Valve (Opt)
Isolation
Valves
Cond
Water
Flow
Flow
Pressure
Switch
Differential
Gauge
RTHD-SVX01K-EN
Advertisement
Table of Contents
