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43InRow RP Technical Data Manual
P. SELECTABLE TOP OR BOTTOM PIPING (AIR-COOLED ONLY)
1. Pipe connections: The unit is equipped with field connection from either top or bottom of the
unit. Unit connections shall be made internal to the unit.
2. Pipe adapters: The unit shall include 1-in Rotolock to sweat adapters and associated Teflon
seals.
Q. FLOW METER
1. Flow meter shall be factory piped inside the unit and connected to microprocessor controls to
provide water flow rate through the unit. The microprocessor controller shall also use this
information to provide total unit capacity out of the unit while in operation.
2. Flow meter shall be stainless steel construction turbine type meter, compatible with glycol/
water solutions up to 50%, with accuracy of 1.5% or better on range 5-50 GPM.
R. CABLE WATER DETECTOR (OPTIONAL)
1. The optional leak detection sensing cable shall be shipped loose with the unit. If water or other
conductive liquids contact the cable anywhere along its length, the main controller visually
and audibly annunciates the leak.
2. The optional detector shall be provided with a 6.1 m (20 ft) of cable. Cable may be cascaded
up to 24.4 m (80 ft).
S. BRIDGE POWER CABLE TROUGH
1. An overhead power distribution bridge, that sits between adjacent NetShelter racks and allows
for removal of the unit without disrupting the overhead power cabling, is available as an
accessory.
2. Cable trough shall be constructed of 1.5 mm (16 gauge) cold rolled steel with a black powder
coat finish.
T. BRIDGE DATA PARTITION
1. An overhead cable distribution, that sits between adjacent Netshelter racks and allows for
removal of the unit without disrupting overhead cabling, is available as an accessory.
2. Data partition shall be constructed of 1.5 mm (16 gauge) cold rolled steel with a black powder
coat finish.
U. COOLING FLUIDS
Chilled Water and solutions of propylene or ethylene glycol up to 50% may be used. Solutions
of brine or other aqueous salt are NOT permitted.
V. FREEZE PROTECTION
Per ASHRAE Handbook Fundamentals 2001 21.5, a maximum of 30% ethylene glycol and
35% propylene glycol are needed for freeze protection. Please consult ASHRAE handbook
for more details.