Electrical power supply, Transformers and wiring voltage drop, Dryer installation – Grain Systems PNEG-1707 User Manual
Page 19
4. Dryer Installation
PNEG-1707 TM-Series Tower Dryer
19
Fuel System Requirements
Electrical Power Supply
An adequate power supply and proper wiring are important factors for maximum performance and long
life of the dryer. Electrical service must be adequate enough to prevent low voltage damage to motors
and control circuits. (See electrical requirements
.)
Transformers and Wiring Voltage Drop
Advise the service representative of the local power supplier that an additional load will be placed on the
line. Check on KVA rating of transformers, considering total horsepower load. The power supply wiring,
main switch equipment and transformers must provide adequate motor starting and operating voltage.
Voltage drop during motor starting should not exceed 14% of normal voltage, and after motor is running
at full speed it should be within 8% of normal voltage.
TM-1008
TM-1010
TM-1012
TM-1015
Liquid
Propane
Burner Capacity (Btu/hr)
1
8,200,000
9,700,000
11,200,000
14,300,000
Maximum Fuel Usage (gal/hr)
90
106
122
156
Recommended Liquid Line Size (<100')
3/4"
3/4"
3/4"
3/4"
Fuel Train Orifice Size (inch)
0.500"
0.625"
0.625"
0.7187"
Pressure Regulator Setting (lb/in
2
)
9
9
9
9
Natural
Gas
Burner Capacity (Btu/hr)
1
8,200,000
9,700,000
11,200,000
14,300,000
Maximum Fuel Usage (ft
3
/hr)
8200
9700
11200
14300
Recommended Fuel Line Size (<100')
2"
2"
2"
2-1/2"
Fuel Train Orifice Size (inch)
0.625"
0.688"
0.688"
0.8125"
Supplied Pressure to Fuel Train (lb/in
2
)
10
10
10
10
1
Burner capacity for fuel line sizing. Actual average fuel usage is typically 50%-60% of the burner capacity.