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OPERATOR MANUAL

IMPORTANT INFORMATION, KEEP FOR OPERATOR

THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE.  READ, 
UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND WARNINGS 
CONTAINED IN THIS MANUAL.

FOR YOUR SAFETY

 Instructions to be followed in the event user smells 

gas. This information shall be obtained by consulting your local gas 
supplier. As a minimum, turn off the gas and call your gas company and 
your authorized service agent. Evacuate all personnel from the area.

WARNING

  Improper installation, adjustment, alteration, service or 

maintenance can cause property damage, injury or death.  Read the 
installation, operating and maintenance instructions thoroughly before 
installing or servicing this equipment.

NOTIFY CARRIER OF DAMAGE AT ONCE

  It is the responsibility of the 

consignee to inspect the container upon receipt of same and to determine 
the possibility of any damage, including concealed damage. Unified 
Brands suggests that if you are suspicious of damage to make a notation 
on the delivery receipt. It will be the responsibility of the consignee to file 
a claim with the carrier. We recommend that you do so at once.

Manufacture Service/Questions 888-994-7636.

PART NUMBER 128416, REV. G (06/22)

This manual provides information for:

STEAM JACKETED KETTLE WITH 

STANDARD ELECTRONIC IGNITION

MODELS AH/1E (CE) INTERNATIONAL

· Self Contained
· Gas Heated
· Floor Mounted
· Stationary

Information contained in this document is known to be current and accurate at the time of printing/creation.  Unified Brands recommends referencing 

our product line websites, unifiedbrands.net, for the most updated product information and specifications. © 2022 Unified Brands. All Rights Reserved.  

Unified Brands is a wholly-owned subsidiary of Dover Corporation.

EQUIPMENT DESCRIPTION

AH/1 steam kettles are stainless steel, floor mounted kettles with a self-
contained steam source heated by gas.  A closed steam jacket covers the lower 
portion of the kettle.  Heat from the gas burner boils water in the jacket to 
produce steam under pressure.  To ignite the burners, the kettle uses electronic 
spark ignition.
The kettles are stationary (non-tilting).  Liquids can be removed through the 
tangent draw-off valve.
Exposed surfaces are stainless steel.  Insulated sheathing protects the kettle 
body, and a housing encloses the controls.  Three tubular legs support the unit.  
Bullet feet adjust to level the kettle.
A one piece dome cover is hinged to the kettle on the 20-gallon (75.7 liters) 
model.  Covers for 40 and 60-gallon (151.4 and 227 liters) kettles are supplied 
with counterbalancing spring actuators to hold the covers in the fully open or 
closed position.
Controls provided include the ON/OFF switch, to control electric power for the 
unit, and the thermostat, to set the cooking temperature.  The automatic controls 
and a brief description of each are as follows.
1.  Gas pressure regulator: Protects the unit from high pressure in the gas 

supply line.

2.  Automatic gas valves:  Allow gas into the burners as needed.
3.  Pressure switch:  Turns off the burner when jacket pressure reaches 27 PSI 

(186.1 kPa, 1.86 bars).  Lights the burner when pressure drops to 22 PSI 
(151.6 kPa, 1.52 bars).

4.  Safety valve:  Lets steam out of the jacket if the steam pressure exceeds 30 

PSI (206.7 kPa, 2.06 bars).

5.  Low-water cutoff:  Turns off the burner if the water level in the jacket gets 

too low for safe operation.

Instruments also are provided to show what is happening inside the unit.  These are:
1.  Water level sight glass:  Indicates whether there is enough water in the 

steam jacket.

2.  Pressure/vacuum gauge:  Shows steam pressure, and whether too much air 

has entered the jacket.

3.  Heating indicator light:  Indicates that the kettle is being heated.
4.  Power on indicator light:  Glows when the unit is turned on.
5.  Low water indicator light:  Lights to show that jacket water needs to be 

replenished.

REFERENCES

CSA AMERICA INC
8501 East Pleasant Valley Road
Cleveland, Ohio 44131

NSF INTERNATIONAL
798 N. Dixboro Rd. / P.O. Box 130140
Ann Arbor, Michigan 48113-0140

NSF/ANSI 4
ANSI Z83.11

NATIONAL FIRE PROTECTION ASSOCIATION
60 Battery March Park
Quincy, Massachusetts 02269 

NFPA/70 The National Electrical Code
NFPA/54 Installation Gas Appliances & 
Piping

AMERICAN NATIONAL STANDARDS INST., INC
1430 Broadway
New York, New York 10018

Z223.1-1984 National Fuel Gas Code
Z21.30 Installation of Gas Appliances & 
Piping

888-994-7636,  fax 888-864-7636

unifiedbrands.net

Summary of Contents for AH/1E-20

Page 1: ...are stationary non tilting Liquids can be removed through the tangent draw off valve Exposed surfaces are stainless steel Insulated sheathing protects the kettle body and a housing encloses the contro...

Page 2: ...IN PERSONAL INJURY AND OR DAMAGE TO EQUIPMENT WARNING WHEN TESTING AVOID EXPOSURE TO THE STEAM BLOWING OUT OF THE SAFETY VALVE DIRECT CONTACT COULD RESULT IN SEVERE BURNS DANGER ELECTRICALLY GROUND TH...

Page 3: ...cked the tangent draw off valve is easily attached as shown above The large nut which attaches the valve to the kettle should be hand tightened only INSTALLATION NOTICE TO AVOID DAMAGING PARTS OF THE...

Page 4: ...lectrical appliances may be located close to liquids or operate in and around damp conditions or where restricted movement for installation and service is evident The installation and periodic inspect...

Page 5: ...7 to 1 0 Bar see Jacket Vacuum in this manual c Turn on the electrical power to the unit d Turn on the main power switch on the control face e Turn the temperature knob to the desired setting The hea...

Page 6: ...nitizer such as Klenzade XY 12 4 Film remover such as Klenzade LC 30 PRECAUTIONS Before cleaning shut off the kettle by turning the main power switch to OFF and shut off all electric power to the unit...

Page 7: ...0 bar allow the pressure to build back to 5 psi 35 kPa 0 34 bar and repeat the procedure 4 Once steam has been vented from the jacket as described in b above remove the hot water from the kettle and...

Page 8: ...rature User a Thermostat dial setting Auth Service Rep Only b Thermostat calibration X c Thermostat operation Thermostat should click when the dial is rotated above and below the setting for the tempe...

Page 9: ...H 20 60 000445 3 COVER PANEL AH 20 012365 3 COVER PANEL AH 40 012377 3 COVER PANEL AH 60 013515 4 INSULATOR PILOT BURNER ACCESS 008201 5 DOOR PILOT 004035 6 HINGE PILOT DOOR 004114 7 SAFETY VALVE WATE...

Page 10: ...TURAL GAS 17 DRILL 173 DIA HOLE AH 1E 20 ONLY 000489 8 ORIFICE NATURAL GAS 15 DRILL 173 DIA HOLE AH 1E 40 ONLY 000280 8 ORIFICE PROPANE GAS 37 DRILL 104 DIA HOLE 000281 9 BRACKET PILOT BURNER MOUNTING...

Page 11: ...Description Part 1 BURNERASSEMBLY AH 60 G20 175856 1 BURNERASSEMBLY AH 60 G31 175861 2 PILOT BRACKET AHS 40 139181 3 ASM PILOT BURNER G20 102258 3 ASM PILOT BURNER G31 104392 4 TUBE PILOT 139833 5 CAB...

Page 12: ...BLACK 005722 13 NIPPLE 1 2 NPT X 2 1 2 LG BLACK 005552 14 SWITCH PRESSURE 177776 15 NIPPLE 1 4 NPT X 2 1 2 LG BLACK 127330 16 ELBOW 90 DEGREE 1 4 NPT 005682 17 CLAMP RIGID CONDUIT 3 4 NFPC 127345 18...

Page 13: ...LE CLOSE 1 2 BSPT X 1 2 NPT 116394 7 BRACKET GAS VALVE MTG 117717 8 SCREW PHILLIPS HEAD M4 X 5MM 123717 9 GAS VALVE CE 160776 10 BUSING REDUCING 1 2 X 1 8 NPT 088290 11 BUSING REDUCING HEXAGON 1 2 X 3...

Page 14: ...K 1 2 NPT X 8 LONG 005557 7 UNION 1 2 NPT 004186 8 SCREW HEX HEAD CAP 005698 9 NUT HEX SERRATED ZINC 1 4 20 NT1101 10 CLAMP RIGID CONDUIT 127345 11 GAS MANIFOLD BRACKET 139861 12 NIPPLE 1 2 NPT X 6 BL...

Page 15: ...15 OM AH 1E CE INTERNATIONAL Wiring Diagram CALL FACTORY FOR REPLACEMENT PARTS 888 994 7636...

Page 16: ...16 OM AH 1E CE INTERNATIONAL Service Log Model No Purchased From Serial No Location Date Purchased Date Installed Purchase Order No For Service Call Date Maintenance Performed Performed By...

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