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724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 25
Chapter 2: Installation
2.6.3 Outdoor Condensers
Referring to the IOM manual provided with the condenser, install the remote condenser in a secure location where it cannot be
tampered with, and the service disconnect switch cannot be inadvertently turned off. Locate the remote condenser where the fan
is not likely to draw dirt and debris into the coil fins. The clearance around the condenser should be at least 1x the unit's width to
ensure adequate airflow to the coil. Secure the condenser to prevent the system from moving during operation. We recommend
installing the remote condenser with vibration mounts to reduce vibration transmitted to the mounting surface.
2.7 Water–Water-/Glycol-Cooled DX (CRDX-W-FS-12W, CRDX-W-FS-24W, CRDX-G-FS-12W, and
CRDX-G-FS-24W models)
The system uses an external source of fluid to provide coolant to the condenser inside the A/C unit. No refrigeration connections
are required for self-contained water- or glycol-cooled systems (see Figure 2-7).
TEMPERATURE
SENSOR
T
COMPRESSOR
CONNECTIONS
CONDENSER WATER
IN
WATER REGULATING
VALVE
OUT
OPTIONAL PIPING
CONNECTION
SWITCH LIMIT
SCHRADER
HIGH PRESSURE
HP
VALVE
WATER COOLED CONDENSER
DRIER/STRAINER
REFRIGERANT
LP
SCHRADER
VALVE
LIMIT SWITCH
LOW PRESSURE
DISTRIBUTOR BODY
EVAPORATOR COIL
PT
PRESSURE
TRANSDUCER
THERMAL
EXPANSION
VALVE
PT
PRESSURE
TRANSDUCER
REGULATOR
HOT GAS
ASC
ELECTRONIC
SIGHT
GLASS
Figure 2-7. Typical W/G piping diagram.
Table 2-2. Pipe connection sizes.
Model # Water Glycol Inlet/Outlet Condensate Drain
CRDX-W-FS-12W,
CRDX-W-FS-24W
1
1
⁄4"
1
⁄2
"
CRDX-G-FS-12W,
CRDX-G-FS-24W
1
1
⁄4"
1
⁄2
"