(Dec., 2013)
STULZ CyberRow Chilled Water Series Installation, Operation & Maintenance Manual
2-7
2.7.1.2 CW Supply and Return Piping Connections- 24” Cabinets
CONDENSATE DRAIN-
1/2” FPT
FEMALE PIPE
THREADS
SCHRADER
VALVE
PUMP
CONDENSATE DRAIN-
1/2” FPT
MALE PIPE
THREADS
SCHRADER
VALVES
PUMP
TOP
ACCESS
PIPING
BOTTOM
ACCESS
PIPING
2.7.2 Condensate Drain Line
A condensate pump is factory installed. The drain line
connection is typically a 1/2” FPT fi tting. The installer
must connect a drain line (customer supplied) to the drain
fi tting to remove water from the cabinet.
The condensate drain fi tting is accessed through the
top or bottom of the cabinet as confi gured with the
piping connections. The drain fi tting is accessed from
outside the cabinet on top piped units. The drain
fi tting is accessed inside the cabinet behind the front
discharge panel on bottom piped units. An entrance
hole for the drain line is provided in the fl oor of the fan
compartment. See the installation drawing provided with
your unit for the location. Connect the drain line to the
fi tting so water can be directed to an appropriate place
such as an open building drain with an air gap per local
and national plumbing codes.
2.7.3 Humidifi er (Optional)
CyberRow CRS-180 systems may be equipped with
an electrode steam humidifi er. The humidifi er empties
into its own dedicated drain pump during the fl ush/
drain cycle. A water supply must be connected to the
humidifi er and a drain line must be connected to the
pump.
NOTE
The humidifi er drains (hot) water into the drain
pump during normal operation.
For top piped cabinets, the supply and drain connections
are typically 1/2” FPT and are accessed at the top of the
cabinet.
For bottom piped cabinets, a 1/4” OD water supply line
must be routed into the bottom of the cabinet through
an available knockout and connected directly to the
1/4” compression fi tting on the side of the humidifi er.
Also, route a 3/8” ID fl exible drain tubing through the
bottom of the cabinet and connect it to the barbed
drain stub located on top of the humidifi er drain pump.
