MODUS
LOHI
PROTECT TUBING
OPENING FROM
THE WIND.
(Installed by others.)
OUTSIDE AIR DUCT
BUILDING WALL
OR ROOF
AIR HANDLER
SUPPLY AIR
NOTE: BUILDING PRESSURE
TRANSDUCER (INSIDE
CONTROL PANEL - TYPICAL)
FIELD INSTALLED
(Supplied by others)
MODUS
LO HI
RETURN AIR DUCT
AIR HANDLER
5/16" (Minimum)
PLASTIC TUBING
(Installed by others)
RETURN AIR
DAMPER BLADE
NOTE: ENSURE OPEN END OF TUBING
IS AWAY FROM ANY AIR FLOW. DO NOT
MOUNT TUBING NEAR SUPPLY AIR
AND RETURN AIR OPENINGS.
INDOOR INSTALLATION
OUTDOOR INSTALLATION
Factory furnished piping & devices.
Field furnished piping & devices.
HEADER
UNION
BLEED-OFF VALVE
WATER LEVEL
Notes
Legend
1)
2)
3)
4)
EVAPORATIVE COOLING MODULE
FLOAT VALVE & MAKE-UP CONN.
MANUAL SHUT-OFF VALVE
OVERFLOWR CONN.
DRAIN CONN.
VACUUM BREAKER
MANUAL DRAIN VALVE
PER CODE
FILL VALVE SOLENOID 1” NORMALLY CLOSED.
SUPPLY LINE DRAIN COLENOID 1” NORMALLY OPEN.
ROOF DRAIN
ROOF
ROOF CURB
RECIRCULATION PUMP
SUMP DRAIN 1 1/2”
BALL VALVE POWERED OPEN & CLOSED.
AIR GAP
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
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