Market Forge ST-AS Service Manual
TABLE OF CONTENTS
ST-AS STEAM COOKER
Subject Code No. Page
SEQUENCE OF OPERATION 5133 3
SUGGESTED STEAM CONNECTIONS 5133 3
BALL FLOAT TRAP 5134 4
ILLUSTRATION AND PARTS LIST 5135 5
DOOR ASSEMBLY AND GASKET 5136 6
DOOR ADJUSTMENT AND REMOVAL 5067 7
DOOR HANDLE ASSEMBLY 5119 8
FULCRUM & ROLLER ASSEMBLY 5120 9
FLUE, PRESSURE GAUGE & STEAM TRAP 5137 10
PILOT LIGHT & TIMER 5138 11
TROUBLE SHOOTING GUIDE 5139 12
WIRING DIAGRAM 5140 13
OPTIONAL STEAM-IT STAND 5141 14
24 INCH CABINET BASE 5142 15
WATTS PRESSURE REDUCING VALVE 5129 16
HOW TO USE THIS MANUAL
This manual contains maintenance and service instructions for
the Automatic, Direct-Connected Steam-It, Style H Model ST-AS.
The exploded view drawings of components are aids to the
identification, disassembly and assembly of parts. The parts
listings provide information necessary for the ordering of
replacement parts (proper part names and part numbers). When
requesting parts or service, always furnish the model and serial
number of your unit. These numbers are located on the name
plate affixed to the top surface of the Steam-It.
STEP 5. The steam trap closes from the intense heat
generated by steam acting upon its thermostatic
element and free-venting will cease.
STEP 6. A full steam pressure build-up to approximately 14
P.S.I, will occur within the cooking chamber. The
Steam -It door must be kept locked until the cooking •
period has completely finished.
STEP 7. The timer will return to "zero" position and cooki ng
wilt be terminated. The inlet valve will close, the
exhaust valve will open, the buzzer will again sound,
and the pilot light will go out. The buzzer will continue
to sound until the timer is turned to the "off" position.
OPERATION SEQUENCE
STEP 1. Put the food in a proper pan for the cooking to be
performed and place it in the Steam-It in keeping
with proper loading techniques.
STEP 2. Close and lock the door into position by placing the
tongue of the door lock under the roller of the fulcrum
casting and press downward until the handle comes to
a firm stop. This lock makes the initial seal and when
steam pressure builds up within the cooking chamber
the door will be forced to a tighter closed position.
STEP 3. Turn the Steam-It on by setting the timer clock past
and then back to the desired cooking period. The pilot
light will go on to signify that cooking is in progress.
STEP 4. The steam exhaust valve will automatically close, the
steam inlet valve will open, and a period of freeventing through the open steam trap will occur. During
this period of free-venting, trapped cold air is
exhausted from the cooking chamber and replaced
with live steam.
STEAM REQUISITES
The ST-AS Steam-It is designed for operation with a piped-in
steam supply not in excess of 14 Ibs per square inch. Should it
be used with a system of steam generation that exceeds 14 Ibs
per square inch, a pressure regulator must be used on the
steam input line to reduce and regulate the steam pressures
within the operational range of the Steam-It.
SUGGESTED STEAM CONNECTIONS
The illustration shows a recommended system of installation
which provides a regulating valve for delivery of 14 Ibs of steam
pressure, a globe valve for emergency shut off, a pressure
gauge to measure the pressure input from the source of supply,
and a ball-float trap to prevent dirt and water from entering the
unit. The globe valve, regulating valve, and ball-float trap and
pressure gauge are not furnished with this equipment. The
pres-gauge must be selected to operate within the range of the
pressures experienced at the place of installation. With the
introduction of a pressure reducing valve, the Steam-It will then
require input steam pressures in excess of 14 Ibs from its
source of supply.
NOTE: With pressure constant and between 11 and 14 PSI,
use the same system of installation with the pressure
reducing valve omitted.
BALL FLOAT TRAP PART NUMBER 10-5336
2 Cover Gasket
10-5639
3 Valve and Sea
10-5640
4 Bracket and Screw
10-5642
5 Lever Assembly
10-5641
6 Ball Float
10-5643
PART NUMBER 10-5473, CHROME
Item Description Part No.
1 Cover Bolt and Nut 10-5644
5134
ST-AS STEAM-IT
2 Safety Valve
10-4636 3 Strainer Ass'y
95-0516 4 Handle Bumper
10-0226 5 No.
8 - 32 x 3/8"
Binding Hd. Screw
10-1774 6 Fulcrum
95-0116 7 1
/4" Sha
keproof Washer
10-2513 8 1/4" - 20 x 3/4"
Rd. Hd. Screw
10-1763 9 1/4" - 20 x 7/8"
Hex. Hd. Screw
10-1790 10 Street Elbow,
90° 10-2811 11 Solenoid Valve (Inlet)
10-5859 12 Grommet
10-0280 13 Elbow
1/2"
I.P.S. x
5/8 0.
D. 10-
2837
15 1/2"
I.P.S. x
5/8 0.
D. Straight Connector
10-2867 16 Nipple
1/2"
I.P.S. 10-
1107 17 Bracket
95-0065 18 Elbow
&
Bracket Ass'y.
95-
0064 19 1/4"
Lockwasher
10-2500 20 1/4" - 20 x 1/2
Hex. Hd. Screw
10-2073 21 Solenoid Valve (Outlet)
10-
5787 22
Tubing
95-3154 23 Nut, Grip
1/4" - 20 10-2312 24 Elbow
1/2"
I.P.S. St'd.
90° 10-2853 25 Nipple
1/2"
I.P.S. 10-
2864 26 Support Bracket, Buzzer
95-2007 27 Buzzer
10-4563 28 No.
8 - 32 x 3/8"
Rd. Hd. Screw
10-1717 29 No.8 Lockwasher
10-
2518 30
Hex. Nut,
#8-
32 10-2378 31 Handy Box
– Raco
10-
5163 32 Ground Lug
10-5492 33 No.
10 - 32 x 3/8"
Rd. Hd. Screw
10-1759 34 Cover, Handy Box
- Raco
10-5164 35 5/16"- 18
x 1"Hex. Hd. Screw
10-2105 36 5/16"
Flat Washer
10-2405 37 Hex. Nut
5/
16"- 18 10-2307 38 Pan Support
- Left Side
95-0097 39 Pan Support
- Right Side
95-
0096 40 Steam Trap
10-
6156 41 Bracket, Pilot Light
95-3408 42 Pilot Light
10-5052 43 Front Lower Panel Ass'y.
95-3185 44 Case -
Top Front Upper
95-3131 45 Case -
Left Side
95-3140 46 Case -
Right Side
95-
3141 47 Case -
Back
95-3126 48 No. 8 x
3/8"
Phil. Truss Hd. Screw Ty. "A"
10-1956 49 Nameplate Panel
(60
Cy.) 10-
6587 50 Decal, Dial Overlay
(50
Cy.) 10-
6577 51 No.
10 - 32 x 1/2"
Binding Hd. Screw
10-1776 52 Flue Ass'y.
95-3135 53 Pressure Gauge
10-5399 54 Tubing
- Press. Gauge
95-3285 55 Timer,
60
Minute
95-3393 56 Knob, Dial
10-
6381 57 Comp. Conn.,
1/8"
I.P.S. F'male x
3/16" 0.
D. 10-
3361
MASTER ILLUSTRATION PARTS LIST
Item Description Part No.
1 Body Assembly 95-2156
14 Tubing 95-2997
58 Comp. El. 900, 1/8" I.P.S. Male x 3/16" 0. D. 10-3360
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