CDA CST Spezifikationen PDF herunterladen (Seite 23)

15, 30, & 60 cfm Compact Dryers Chapter 3: Installation 22 of 57

Making Dryer/Drying Hopper Process Air Connections

Floor Mount Models

When making process air connections to your floor mounted dryer, ensure that you take into

consideration and make arrangements for the following:

• Use high-temperature flexible dryer hose or rigid tubing to connect the dryer to the

drying hopper.

• Keep the delivery hose to the drying hopper as short as possible to minimize heat loss.

We strongly recommend insulated hose for maximum energy savings.

• Do not use insulated hose on the return from the drying hopper.

• The return air to the blower must be 150°F (66ºC) or below. If the return air

temperature is not below this point, you should purchase and install the optional

aftercooler to remove excessive heat. Consult the manufacturer for more information.

Aftercooler considerations also apply to machine-mount models.

• Make sure that hoses are not kinked or collapsed.

• Drying hopper air inlet and outlet locations vary, but always connect hoses so the dry

process air from the dryer enters the bottom of the drying hopper and flows out the top

to return to the dryer inlet.

• Thermocouple is to be installed at drying hopper’s delivery tube.

Drying Hopper Air Trap Considerations

Our exclusive air trap assembly on the top of the drying hopper prevents ambient air from

contaminating the material being dried. To ensure that your unit will operate at peak

efficiency, do the following:

• Keep the material level at the mid point of the air trap

This can be achieved by utilizing a hopper loader or vacuum conveying system to

supply material to the drying system.

Optional Aftercooler

Water-cooled 15 and 30 cfm models use a water-to-air heat exchanger as an aftercooler.

Cooling water is required for this design (3 gpm at 85°F or lower). Return air from the

hopper passes through the air filter to trap fines and dust before entering the heat exchanger.

Installing Water Lines

(Hose and Hose Clamp)

When installing the water lines, ensure that the aftercooler utilizes either tower, chilled or city

water up to 85°F (29°C). Recommended flow rate is three (3 gpm) gallons per minute (11

liters per minute).

3-5 Initial Start-up

Pre-Startup Checks

; Check the process and return hoses for tight connections.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 57 58

Keine Kommentare

CDA CST Spezifikationen Seite 23