Daikin Pathfinder AWV Installation, Operation And Maintenance Manual page 19

Figure 39: Typical Chilled Water Piping, Braze Plate
Figure 40: Typical Chilled Water Piping, Shell and Tube Evaporator
INLET
PROTECT ALL FIELD PIPING
AGAINST FREEZING
WELDED PIPE CONNECTIONS ARE NOT ALLOWED
BETWEEN THE STRAINER AND EVAPORATOR DUE TO THE
CHANCE OF SLAG ENTERING THE EVAPORATOR
Assuming there are no sudden load changes and the chiller
plant has reasonable turndown, a rule of thumb of "gallons of
water volume equal to two to three times the chilled water gpm
flow rate" is often used. A storage tank may have to be added
to the system to reach the recommended system volume.
Refer to Daikin Applied Chiller Application Guide, AG 31-003,
for method of calculating "Minimum Chilled Water Volume".
The water quality provided by the owner/occupant/operator/
user to a chiller system should minimize corrosion, scale
buildup, erosion, and biological growth for optimum efficiency
of HVAC equipment without creating a hazard to operating
personnel or the environment. Strainers must be used to
protect the chiller systems from water-borne debris. Daikin will
not be responsible for any water-borne debris damage or water
www.DaikinApplied.com
Inlet
Outlet
WELDED PIPE CONNECTIONS ARE NOT ALLOWED
BETWEEN THE STRAINER AND EVAPORATOR DUE
TO THE CHANCE OF SLAG ENTERING THE EVAPORATOR
VENT
3/8" PIPE PLUG
OUTLET
DRAIN
WATER
STRAINER
Installation and Application Considerations
Air
Vent
Strainer
Vibration
P
Eliminators
Drain
LEAVING FLUID
TEMP. SENSOR
VALVED
PRESSURE
GAUGE
VIBRATION
BALANCING
ELIMINATOR
VALVE
GATE
VALVE
FLOW
side damage to the chiller heat exchangers due to improperly
treated water.
Water systems should be cleaned and flushed prior to chiller
installation. Water testing and treatment should be verified
during initial chiller installation/commissioning and maintained
on a continuous basis by water treatment professionals (see
Limited Product Warranty).
The improper use of detergents, chemicals, and additives
in the chiller system water may adversely affect chiller
performance and potentially lead to repair costs not covered
by warranty. Any decision to use these products is at the
discretion of the owner/occupant/operator/user as such they
assume full liability/responsibility for any damage that may
occur due to their use.
19 IOM 1242-8 • PATHFINDER
Isolation
Valves
Flow
Switch
VIBRATION
ELIMINATOR
FLOW
SWITCH
GATE
VALVE
FLOW
CAUTION
MODEL AWV CHILLERS
®