14
Failure to comply to the above instructions may result in equipment malfunction
and will void warranty.
N OT I C E
Always use a backup wrench when making any threaded connection to the dryer.
Failure to use a backup wrench may result in damaged tubing and components
internal to the cabinet.
N OT I C E
7.
INSTALLATION AND INITIAL START-UP
7.1 LOCATION AND MOUNTING
The dryer should not be located in an area where ambient temperature is likely
to exceed 113°F (45°C) or be less than 50°F (10°C). The dryer must be located in
an area that provides sufficient clearance from walls and other adjoining equipment
to allow easy access for servicing and maintenance requirements. A minimum of
30 inches is required to allow free flow of air to the condenser inlet and clearance
for servicing the dryer.
On installations with a relatively steady flow rate, the dryer is normally connected
after the air receiver. If loads fluctuate widely, the dryer should be positioned ahead
of the receiver and sufficient storage capacity downstream is necessary to prevent
excessive air flow through the dryer.
When installed after any compressor that causes significant vibration or air pulsation,
such as reciprocating compressors, proper vibration isolation and pulsation
dampening devices should be added to protect the dryer.
7.2 PIPING AND VALVES
Install piping, fittings and accessories as required for specific site conditions and
requirements. Figure 3 indicates a typical piping arrangement for a refrigerated
dryer, including dryer and filter bypasses. This figure can be used as a guide for
valve and accessory placement in the system.
WEATHERPROOF PACKAGE (OPTIONAL)
Dryers equipped with the optional Weatherproof Package are designed to operate in
ambient conditions as low as 35°F. This package incorporates a fan cycling switch
that operates the refrigeration system at optimal condensing temperatures. The fan
switch controls the condensing temperature by cycling the fan based on refrigerant
discharge pressure. When the unit reaches 275 psig, the fan cycling switch will run
the fan until the discharge pressure is reduced to 195 psig.
Dryers equipped with the weatherproof package are not intended for use below 35°F.
N O T I C E
