SECTION 7: A
IR
H
ANDLER
A
SSEMBLY
39 of 154
FIGURE 2
8
: Conductivity Control and Freeze Protection (Evaporative Coolin
g
Packa
g
e #2)
FIGURE 29: Protection and Auto-Flush (Evaporative Coolin
g
Packa
g
e #3)
HEADER
EVAPORATIVE COOLING MODULE
FLOAT VALVE & MAKE-UP CONN.
MANUAL SHUT-OFF VALVE
OVERFLOW CONN.
DRAIN CONN.
VACUUM BREAKER
MANUAL DRAIN VALVE
AIR GAP
PER CODE
UNION
WATER LEVEL
RECIRCULATION PUMP
ROOF CURB
ROOF DRAIN
SUPPLY LINE DRAIN SOLENOID 1” NORMALLY OPEN.
FILL VALVE SOLENOID 1” NORMALLY CLOSED.
SUMP DRAIN 1 1/2”
BALL VALVE POWERED OPEN & CLOSED
CONDUCTIVITY CONTROL
Factory furnished piping & devices.
Field furnished piping & devices.
Notes
Legend
1)
2)
3)
4)
All solenoids must be installed
in a line no smaller than the
solenoid orifice.
Pitch drain line minimum 1/8”
per foot towards outlet
Supply & supply line drain solenoids
must be installed in a non-freeze
location.
Makeup line must be installed
with no traps or sages above
the roof line.
WATER FLOW ADJUSTMENT VALVE
Factory furnished piping & devices.
Field furnished piping & devices.
Notes
HEADER
EVAPORATIVE COOLING MODULE
FLUSH SOLENOID NORMALLY CLOSED
MANUAL SHUTOFF VALVE
FLOAT VALVE & MAKE-UP CONN.
MANUAL SHUTOFF VALVE
OVERFLOW CONN.
DRAIN CONN.
VACUUM BREAKER
MANUAL DRAIN VALVE
AIR GAP
PER CODE
UNION
CHECK VALVE
BLEED-OFF VALVE
WATER LEVEL
RECIRCULATION PUMP
ROOF CURB
ROOF
ROOF DRAIN
SUPPLY LINE DRAIN SOLENOID 1” NORMALLY OPEN.
FILL VALVE SOLENOID 1” NORMALLY CLOSED.
SUMP DRAIN 1 1/2”
BALL VALVE POWERED OPEN & CLOSED.
Legend
1)
2)
3)
4)
All solenoids must be installed
in a line no smaller than the
solenoid orifice.
Pitch drain line minimum 1/8”
per foot towards outlet
Supply & supply line drain solenoids
must be installed in a non-freeze
location.
5) Header orifices serve as vacuum
break for flush solenoid connection
to header.
Makeup line must be installed
with no traps or sages above
the roof line.
WATER FLOW ADJUSTMENT VALVE
Содержание 4044
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