February 21, 2003 INSTALLATION INSTRUCTIONS FOR STEAM

February 21, 2003 INSTALLATION INSTRUCTIONS FOR STEAM
February 21, 2003
INSTALLATION INSTRUCTIONS
FOR STEAM TO STEAM GENERATOR
1.
2.
3.
4.
5.
6.
7.
8.
Mount Steam Generator Assembly vertically.
Connect deionized water feed source to generator water inlet.
Connect house steam supply to steam solenoid valve.
Connect generator condensate return output to plant steam condensate line.
Plumb clean steam drain and plant steam drain to an approved location.
Plumb safety valve outlet to an approved location.
Connect steam outlet to steam load.
Connect wiring according to wiring diagram.
15
8
9
13
STEAM
IN
STEAM
OUT
2
14
6
7
1
3
10
12
CONDENSATE
OUT
5
WATER
IN
11
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
ITEM
STAINLESS PRESSURE GAUGE
ELECTRICAL ENCLOSURE
STAINLESS STEEL SAFETY VALVE
STRAINER
STAINLESS BALL VALVE (DRAIN)
DRAIN VALVE
HIGH LIMIT PRESSURE CONTROL
OPERATING PRESSURE CONTROL
LIQUID LEVEL CONTROL
STAINLESS STEEL HEAT EXCHANGER
ST STEEL WATER FEED SOLENOID VALVE
STAINLESS STEEL CHECK VALVE
STEAM TRAP
BRASS STEAM SOLENOID VALVE
GAUGE GLASS
DESCRIPTION
4
TOLERANCES
(EXCEPT AS NOTED)
SUSSMAN-AUTOMATIC CORPORATION
43-20 34TH STREET, LONG ISLAND CITY, NEW YORK 11101
DECIMAL
JOB
SCALE
INDUSTRIAL BOILER
FRACTIONAL
TITLE
ANGULAR
DATE
~
DRAWN B Y
FE
APPROVED B Y
CM
STEAM TO STEAM GENERATOR
03-09-04
DRAWING
NUMBER
MODEL SHE
SYM
DATE
ECN
REVISION RECORD
AUTH
CONTROL SUPPLY
120VOLTS 1PH 60HZ
L
N
M
PUMP MOTOR
MOTOR RATED
RELAY
S
WATER FEED SOLENOID
VALVE
R
UPPER LEFT
TERMINALS
COM
ON LO
LOWER LEFT
TERMINALS
COM
ON HI
C
LIQUID
LEVEL
CONTROL
P
P
HI LIMIT
PRESSURE
CONRTOL
OPERATING
PRESSURE
CONTROL
PLANT STEAM
CONTROL
TOLERANCES
(EXCEPT AS NOTED)
FIELD WIRING
SUSSMAN-AUTOMATIC CORPORATION
43-20 34TH STREET LONG ISLAND CITY NEW YORK 11101
DECIMAL
JOB
SCALE
DRAWN BY
FE
PURE STEAM GENERATOR
FACTORY WIRING
± .005
FRACTIONAL
TITLE
± 1/64
ANGULAR
± 1°
APPROVED BY
~
DATE
08-03-94
WIRING DIAGRAM
STEAM TOSTEAM GENERATOR
DRAWING
NUMBER
A-103634
CM
May 5, 2006
PRINCIPLE OF OPERATION
THE SYSTEM CONSISTS OF STAINLESS STEEL HEAT EXCHANGER, LIQUID LEVEL
CONTROL, PRESSURE CONTROLS, AND VARIOUS VALVES AND FITTINGS.
RAW PLANT STEAM IS INTRODUCED TO THE HEAT EXCHANGER SHELL THROUGH THE
STEAM SOLENOID VALVE. STEAM CONDENSATE IS DISCHARGED FROM THE SHELL
THROUGH THE STEAM TRAP AT THE SHELL OUTLET.
CLEAN WATER ENTERS THE HEAT EXCHANGER THROUGH THE WATER FEED
SOLENOID VALVE. A CHECK VALVE PREVENTS STEAM FROM FLOWING BACK INTO THE
PUMP. HEAT FROM RAW STEAM TURNS THE CLEAN WATER INTO STEAM IN THE HEAT
EXCHANGER TUBES.
THE LIQUID LEVEL CONTROL IS CONNECTED TO THE HEAT EXCHANGER THROUGH A
SERIES OF EQUALIZING PIPES. THE LIQUID LEVEL CONTROL PROVIDES LOW WATER
CUT-OFF AND WATER FEED CONTROLS.
WHEN THE WATER LEVEL EXCEEDS THE MINIMUM OR MAXIMUM SET POINTS THE
WATER FEED PUMP MOTOR IS ENERGIZED OR DE-ENERGIZED TO CONTROL WATER
LEVEL. OPERATING WATER LEVEL IS AT APPROXIMATELY AT THE SIGHT GLASS LEVEL.
THE LOW WATER CUT-OFF SYSTEM DETECTS WATER LEVEL AND DE-ENERGIZES THE
RAW STEAM SOLENOID VALVE WHEN WATER LEVEL FALLS A COUPLE OF INCHES
BELOW MINIMUM LEVEL.
THE OPERATING PRESSURE CONTROL MONITORS THE CLEAN STEAM PRESSURE
INSIDE THE TUBES AND ENERGIZES OR DE-ENERGIZES RAW STEAM SOLENOID VALVE
TO MAINTAIN PROPER PRESSURE LEVEL.
THE PRESSURE GAUGE INDICATES THE CLEAN STEAM OUTPUT PRESSURE.
THE HIGH LIMIT PRESSURE CONTROL DOES THE SAME FUNCTION AS THE OPERATING
PRESSURE CONTROL BUT AT A HIGHER PRESSURE LEVEL. IT IS A SAFETY BACK-UP
FOR THE OTHER PRESSURE CONTROL.
THE SAFETY VALVE MECHANICALLY DISCHARGES STEAM WHEN MAXIMUM SYSTEM
PRESSURE IS EXCEEDED.
Feb 28 2006
Steam Heat Exchanger Pressure Control Adjustment
WARNING: Avoid contact with exposed live electric wires.
SETTING MANUAL RESET HIGH LIMIT PRESSURE CONTROL
1. Turn off SHE control and temporarily short the two wires of Automatic Reset
Pressure Control. Note wiring connections.
2. Turn on SHE control, shut off steam outlet and allow pressure to build up.
3. Steam pressure should build up to the factory set pressure; then the Manual Reset
Pressure Control should trip.
4. Relieve boiler pressure to 70 psig below trip pressure.
5. Depress reset button of the Manual Reset Pressure Control to be sure switch is in the
reset position.
To adjust:
6. Loosen Lock Ring on Adjusting Nut of Manual Reset High Limit Pressure Control.
See Figures 1 and 2.
7. Turn Adjusting Nut 1/4 turn up or down using a 7/16 wrench.
CAUTION: Adjustment nut will turn easily until it hits a stop.
Do not over torque. Over torquing may cause damage.
8. Repeat steps 3 to 8 above, adjusting 1/4 turn at a time until Pressure Control cuts off
below the safety valve set point, preferably 10 psi below or lower.
9. Secure Lock Ring on Adjusting Nut.
10. Depress reset button to be sure switch is in the reset position.
11. Turn off SHE control and reconnect wires of Automatic Reset Pressure Control.
(See step 1).
SETTING AUTOMATIC RESET OPERATING PRESSURE CONTROL
1. Turn on SHE control, shut off steam outlet and allow pressure to build up.
2. Steam pressure should build up to factory set pressure, then the Automatic Pressure
Control should trip.
To adjust:
3. Turn off all electric supply to boiler.
4. Turn Deadband Adjusting Knob on front of switch fully counter clockwise.
5. Turn Adjusting Nut at top of switch 1/4 turn. Clockwise to increase pressure, counter
clockwise to reduce pressure.
CAUTION: Adjustment Nut and Deadband Adjusting Knob will turn easily until it
hits a stop. Do not over torque. Over torquing may cause damage.
6. Relieve some of the boiler pressure until Automatic Reset Pressure Control cuts in.
Depress reset button of the Manual Reset Pressure Control to be sure switch is in the
reset position.
7. Steam pressure should build up, then Pressure Control should cut off again.
8. Turn Adjusting Nut 1/4 turn at a time and cycle pressure until Pressure Control cuts
off below the high limit set point, preferably 10 psi lower.
9. Turn off electric supply to SHE control.
10. Re-adjust Proportioning Pressure Control setting.
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