Dryer start-up, Chapter 7 dryer start-up, Dryer commissioning – Grain Systems PNEG-1797 User Manual

Page 42: Electrical, Gas train

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42

PNEG-1797CE CE Approved T-Series Tower Dryer

7. Dryer Start-Up

Dryer Commissioning

Electrical

1. Carry out earth bonding test per EN60204 and/or local electrical laws and regulations.

2. Check adequate power supply. (Refer to table

on Page 22

.)

3. Voltage at phases must be within 5% of rated voltage.

4. Voltage drop must not exceed 5% when under full load.

5. Check overload settings for each motor circuit.

6. Complete full electrical tests in accordance with EU directives and local laws, regulations and codes.

Gas Train

1. Pressure test

a. Close inlet valve.

(See Figure 7E on Page 50.)

b. Close firing valve.

(See Figure 7I on Page 52.)

c. Close pilot line valve.

(See Figure 7G on Page 51.)

d. Fit pressure test nipple into main solenoid inlet flange.

e. Attach hand bellows and pressure gauge.

f. Pressurize gas train with air to 35 kPa (350 mBar).

g. Check for pressure loss at gauge.

h. Use leak detection to test for leaks.

i. Repeat on outlet flange.

j. Repeat on pilot line.

2. Set inlet pressure per table

on Page 22

.

3. Set relief valve per table

on Page 22

.

a. Apply air pressure via main solenoid inlet flange.

b. Increase/decrease spring pressure in relief valve.

c. Valve should open at 50 kPa maximum.

WARNING

BEFORE STARTING THE DRYER. All safety guards must be in place. All personnel
must away from the dryer. All access doors must be closed.

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