Cincinnati Sub-Zero ZP Series, Installation, Operation & Maintenance Manual

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INSTALLATION
61
SCROLL COMPRESSORS ONLY
Three phase scroll compressors (3.5, 6, 10 & 15HP) are rotation dependent. A
phase monitor is installed on these units. If the phase monitor alarms, reverse
any two leads on the incoming three phase power.
HUMIDITY SYSTEM (OPTIONAL)
Prior to operating the humidity system check the following:
1. Unit is connected to proper voltage.
2. Water supply has been connected to the rear of the unit. Humidity
water pressure should not exceed 10 PSI (69 kPa) for an atomizer and
25 PSI (172 kPa) for a boiler. For optimal use of the atomizer and boiler
systems, inlet water pressure should not fall below 10 PSI (69 kPa) for
both boilers and atomizers.
Water has a resistance level of 0.05 to 2 Mega Ohms and <2mg/L of free
chlorine. If not, the optional Demineralizer must be installed.
3. The chamber drain hose located in the compressor area should be
drained to an external drain.
4. Water line compression fittings on humidity panel should be secure.
5. When starting up unit, the boiler will have to fill with water. Depending
on the water pressure and flow rate, the low boiler water alarm could
be tripped during this process. If so, reset to continue filling. If alarm
continues to go off, call Cincinnati Sub-Zero.
3.5 HP and larger scroll
compressors are equipped
with crank-case heaters.
After connecting the power,
the unit must sit 4 hours
before start-up to properly
heat-up.
CAUTION
Do not connect the steam
generator or cooling tower
water to this system. These
types of water have
additives and will deplete
the demineralizer in a short
period. Use the purest water
available.
NOTE
NOTE
Humidity performance will
be affected if live loads are
placed in the chamber
when trying to achieve
certain humidity levels.
Maximum water inlet
pressure is 10 PSI (69kPa)
for an atomizer and 25 PSI
(172 kPa) for a boiler.
Exceeding this pressure
may cause catastrophic
failure of the filter housing.
For optimal use of the
atomizer and boiler
systems, inlet water
pressure should not fall
below 10 PSI (69 kPa) for
both boilers and atomizers.
WARNING
Make sure that the rubber
gaskets at each end are
properly oriented before
tightening the locking ring.
CAUTION
Failure to maintain cartridge
may result in chloride
corrosion of stainless steel
interior surfaces which is not
covered under warranty.
WARNING