Groen AH-80 User Manual

?? IMPORTANT INFORMATION IMPORTANT INFORMATION?? KEEP FOR OPERATORKEEP FOR OPERATOR?? IMPORTANT INFORMATIONIMPORTANT INFORMATION ?

OPERATOR AND SERVICE MANUAL OM/SM-AH-CE

Part Number 128416 INTERNATIONAL

Model: AH-CE Mark

Steam Jacketed Kettle

Self-contained Stainless Steel Gas Heated Floor Mounted Stationary

KEEP THIS MANUAL WITH KETTLE DOCUMENTS. OPERATORS AND TECHNICIANS SHOULD READ, UNDERSTAND AND FOLLOW WARNINGS AND INSTRUCTIONS IN THIS MANUAL (THE SERVICE MANUAL AND THE OPERATOR SECTIONS)

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.

OM/SM-AH-CE

IMPORTANT — READ FIRST — IMPORTANT

IT IS MOST IMPORTANT THAT THESE INSTRUCTIONS AND THE OPERATOR AND SERVICE MANUALS BE CONSULTED BEFORE INSTALLING AND COMMISSIONING THE APPLIANCE. FAILURE TO COMPLY WITH SPECIFIED PROCEDURES MAY RESULT IN DAMAGE OR THE NEED

FOR A SERVICE CALL. THESE APPLIANCES HAVE BEEN CE MARKED ON THE BASIS OF COMPLIANCE WITH THE GAS

APPLIANCE DIRECTIVE, EMC AND LOW VOLTAGE DIRECTIVE FOR THE COUNTRIES, GAS TYPES AND PRESSURES AS STATED ON THE DATA PLATE.

THESE APPLIANCES MUST BE INSTALLED BY A COMPETENT PERSON IN CONFORMITY WITH

THE INSTALLATION AND SERVICING INSTRUCTIONS AND NATIONAL REGULATIONS IN FORCE AT THE TIME. PARTICULAR ATTENTION MUST BE PAID TO THE FOLLOWING:

I. E. E. REGULATIONS FOR ELECTRICAL INSTALLATIONS ELECTRICITY AT WORK REGULATIONS GAS SAFETY (INSTALLATION AND USE) REGULATIONS HEALTH AND SAFETY AT WORK ACT LOCAL AND NATIONAL BUILDING REGULATIONS FIRE PRECAUTIONS ACT

DETAILED RECOMMENDATIONS ARE CONTAINED IN INSTITUTE OF GAS ENGINEERS PUBLISHED DOCUMENTS: IGE/UP/1, IGE/UP/2, BS6173 AND BE5440.

FURTHERMORE, IF A NEED ARISES TO CONVERT THE APPLIANCE FOR USE WITH ANOTHER GAS, A COMPETENT PERSON MUST BE CONSULTED. THOSE PARTS WHICH HAVE BEEN PROTECTED BY THE MANUFACTURER MUST NOT BE ADJUSTED BY THE USER.

USERS SHOULD BE CONVERSANT WITH THE APPROPRIATE PROVISIONS OF THE FIRE PRECAUTIONS ACT AND THE REQUIREMENTS OF THE GAS SAFETY REGULATIONS. IN PARTICULAR THEY SHOULD BE AWARE OF THE NEED FOR REGULAR SERVICING BY A COMPETENT PERSON TO ENSURE THE CONTINUED SAFE AND EFFICIENT PERFORMANCE OF THE APPLIANCE.

WARNING: TO PREVENT SHOCKS, ALL APPLIANCES GAS OR ELECTRIC, MUST BE

EARTHED.

UPON COMPLETION OF THE INSTALLATION, THE OWNERS MANUAL SHOULD BE HANDED TO THE USERS AND THE INSTALLER SHOULD INSTRUCT THE RESPONSIBLE PERSON(S) IN THE CORRECT OPERATION AND MAINTENANCE OF THE APPLIANCE.

THIS EQUIPMENT IS ONLY FOR PROFESSIONAL USE, AND SHALL BE OPERATED BY QUALIFIED PERSONS. IT IS THE RESPONSIBILITY OF THE SUPERVISOR OR EQUIVALENT TO ENSURE THAT USERS WEAR SUITABLE PROTECTIVE CLOTHING AND TO DRAW ATTENTION TO THE FACT THAT, SOME PARTS WILL, BY NECESSITY, BECOME VERY HOT AND WILL CAUSE BURNS IF TOUCHED ACCIDENTALLY.

WARNING: BEFORE REMOVING ANY PARTITION OR PANEL, ALWAYS TURN OFF THE

ELECTRIC POWER AND ALLOW THE FAN TO STOP ROTATING. BEFORE WORKING ON ANY ELECTRICAL COMPONENT, DISCONNECT THE POWER SOURCE FROM THE UNIT.

NOTE: IT IS IMPORTANT THAT THE END-USER ROUTINELY EXAMINE THE FLUE

OUTLET ON A REGULAR BASIS. DEBRIS COVERING THE FLUE OUTLET CAN CAUSE A POTENTIALLY HAZARDOUS CONDITION. REMOVE ANY FOREIGN MATERIAL BEFORE USING THIS PIECE OF EQUIPMENT.

WARNINGS AND CAUTIONS PROVIDED IN THIS OPERATOR AND SERVICE MANUAL MUST BE COMPLIED WITH.

OM/SM-AH-CE

TABLE OF CONTENTS

Section Page

Introduction .......................................................... 4

1 Installation ........................................................... 4

1.1 Model Numbers, Net Weights & Dimensions .................................. 5

1.2 Siting ................................................................ 5

1.3 Clearances ........................................................... 5

1.4 Ventilation ............................................................ 5

1.5 Electrical Supply ....................................................... 5

1.6 Gas Supply ........................................................... 5

1.7 Water Supply ......................................................... 5

1.8 Total Gas Rate ........................................................ 6

1.9 Injector Diameters-Natural and Propane Gas .................................. 6

1.10 Gas Pressure Adjustment ................................................ 6

1.11 Burner Adjustment ...................................................... 6

2 Assembly and Conditioning ............................................. 6

2.1 Assembly ............................................................ 6

2.2 Gas Supply ........................................................... 6

2.3 Electrical Supply ....................................................... 6

2.4 Jacket Water Level/Jacket Pressure ........................................ 6

2.5 Pre-Commissioning Check ............................................... 7

2.6 Instruction to Installer ................................................... 7

3 Servicing and Conversion .............................................. 8

3.1 Conversion .......................................................... 10

3.2 Jacket Vacuum ....................................................... 10

3.3 Jacket Filling ......................................................... 10

3.4 Water Treatment Procedure ............................................. 10

3.5 Removal of Control Panel ............................................... 11

3.6 Removal of Spark Ignition Module ......................................... 11

3.7 Removal of Low Water Level Control ...................................... 11

3.8 Removal of Gas Control Valve ........................................... 11

3.9 ON/OFF Switch and Reset Button ......................................... 11

3.10 Removal of Neons ..................................................... 11

3.11 Removal of Thermostat ................................................. 12

3.12 Removal of Pressure Switch ............................................. 12

3.13 Low Water Level Sensor ................................................ 12

3.14 Removal of The Burner ................................................. 13

3.15 Pilot Assembly ....................................................... 13

3.16 Removal of Pressure Gauge ............................................ 13

3.17 Removal of Sight Glass ................................................. 13

3.18 Safety Valve ......................................................... 14

3.19 Filling Valve ......................................................... 14

3.20 Fuse Replacement .................................................... 14

4 Troubleshooting ..................................................... 15

5 User Instructions ..................................................... 17

5.1 Equipment Description ................................................. 17

5.2 Lighting and Operation ................................................. 18

5.3 Cleaning and Maintenance .............................................. 21

Wiring Diagram ...................................................... 23

Parts Lists .......................................................... 24

Service Log ......................................................... 30

Warranty ............................................................ 31

OM/SM-AH-CE

Introduction

These Appliances have been CE marked on the basis of compliance with the Gas Appliance Directive, EMC and Low Voltage Directive for the Countries, Gas Types and Pressures as stated on the Data Plate.

These appliances MUST BE installed by a competent person in conformity with the INSTALLATION AND SERVICING INSTRUCTIONS and National Regulations in force at the time. Particular attention MUST be paid to the following:

CC I.E.E. Regulations for Electrical

Installations

CC Electricity at Work Regulations

CC Gas Safety (Installation & Use)

Regulations

CC Health and Safety at Work Act

C Fire Precautions Act C Local and National Building

Regulations

Furthermore, if a need arises to convert the Appliance for use with another gas, a competent person must be consulted. Parts which have been protected by the manufacturer MUST NOT be adjusted by the User.

Users should be conversant with appropriate provisions of the Fire Precautions Act and the requirements of the Gas Safety Regulations. In particular they should be aware of the need for regular servicing by a competent person to ensure the continued safe and efficient performance of the Appliance.

Upon completion of the installation, the Owners Manual should be handed to the users and the installer should instruct responsible person(s) in the correct operation and maintenance of the Appliance.

This equipment is ONLY FOR PROFESSIONAL USE, and shall be operated by QUALIFIED persons. It is the responsibility of the Supervisor or equivalent to ensure that users wear SUITABLE PROTECTIVE CLOTHING and to draw attention to the fact that, some parts will, by necessity, become VERY HOT and will cause burns if touched accidentally.

The Groen Steam Jacketed Kettle you have just purchased has been handcrafted from the finest materials, meticulously inspected, and carefully tested to ensure that you receive the best possible product. With reasonable care and periodic maintenance, it will provide years of faithful service. It is recommended that you establish a timetable for periodic maintenance as outlined in this manual.

Section 1

Installation

UNLESS OTHERWISE STATED, PARTS PROTECTED BY THE MANUFACTURER ARE NOT TO BE ADJUSTED BY THE INSTALLER.

1.1 Model Numbers, Net Weights and Dimensions

MODEL WIDTH DEPTH HEIGHT WEIGHT CAPACITY

mm (in.) mm (in.) mm (in.) kg (lbs.) Liters AH-20 AH-40 AH-60 AH-80

THE UNIT MUST BE INSTALLED BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND GAS. IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT. THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICABLE CODES

933 (36.7) 991 (38.9) 1016 (39.9) 213 (468) 75.7

972 (38.1) 1143 (44.9) 1067 (41.9) 282 (620) 151.4 1041 (40.9) 1245 (48.9) 1245 (48.9) 432 (950) 227 1080 (42.4) 1295 (50.9) 1410 (55.4) 486 (1070) 303

WARNING

OM/SM-AH-CE

1.2 Siting 1.5 Electrical Supply

Install the appliance on a level floor in a well-lit This unit is designed for connection to fixed and draught-free position. Install the appliance in wiring. A suitably rated isolating switch with accordance with local and/or national regulations contact separation of at least 3 mm on both poles as listed in this manual. must be fitted to the installation and the wiring

executed in accordance with the regulations listed

1.3 Installing Clearances

in this manual.

Minimum clearances of 150 mm from the sides of the appliance and 150 mm from the rear of the appliance are required if the appliance is installed next to combustible surfaces.

Allow 1000 mm minimum clearance between the top rim of kettle and any overlying surface.

1.4 Ventilation

The unit must be installed in an adequately ventilated room with provision for an adequate air supply. The area around the appliance must be cleared of all combustible material. For multiple installations requirements for individual units should be added together. Installation must comply with applicable regulations. A competent installer must be employed.

CAUTION THE APPLIANCE FLUE DISCHARGES VERTICALLY FROM THE TOP OF THE UNIT. IT MUST NOT BE DIRECTLY CONNECTED TO A FLUE, MECHANICAL EXTRACTION SYSTEM, OR DUCTING LEADING OUTSIDE THE BUILDING. THE APPLIANCE IS BEST DISCHARGED UNDER AN OPEN CANOPY CONNECTED TO A VENTILATING SYSTEM.

Recommendations for ventilation for catering natural and propane gases without any appliances are given in BS 5440:2 and are shown conversion. in the table below.

Ventilation Rate

Equipment

m³/Min ft³/Min

Range 17 600

Pastry Oven 17 600

Fryer 26 900

Grill 17 600

Steak Grill 26 900

Boiling Pan 17 600

Steamer 17 600

Sterilizing Sink 14 500

Bains Marie 11 400

Tea/Coffee Machine 8.5-14 300-500

Cable entry is at the lower rear on right hand side of the appliance. Access to the terminals is gained by removing relevant panels as described in Section 3.5 of this manual.

Provide 230 VAC, 50 Hz, 1 Phase, service. Rated input: 0.17 Amps, or 40 Watts. The electrical schematic is located in the service compartment and in this manual.

WARNING

THIS APPLIANCE MUST BE EARTHED.

1.6 Gas Supply

The incoming service must be of sufficient size to supply full rate without excessive pressure drop. A gas meter is connected to the service pipe by the Gas Supplier. Any existing meter should be checked by the Gas Supplier to ensure that the meter is of adequate capacity to pass the required rate of gas for the kettle in addition to any other gas equipment installed.

The appliance governor is incorporated in the gas control valve which is situated in the control cabinet.

The control valve governor is suitable for both

Installation pipe work should be fitted in accordance with IEGE/UP/2. The pipe work should not be smaller than the gas inlet connection on the kettle, i.e. Rp ½ (½”B.S.P.)

An isolating cock must be located close to the appliance to allow shut down during an emergency or servicing. The installation must be tested for gas soundness and purged as specified in IGE/UP/1.

1.7 Water Supply

Not applicable to these appliances.

OM/SM-AH-CE

1.8 Total Gas Rate NOTE: With reference to the gas rate, pressure Natural Propane

Model (G20& (G31)

G25) KW KW

AH-20 22 75,100 22 75,100 AH-40 25 85,300 22 75,100

AH-60 &

AH-80

1.9 Injector Diameters-Natural & Propane Gas

Model Gas G20 Gas G25 Gas G31

AH-20 4.39 4.70 2.64 1 AH-40 4.57 4.90 2.64 1

AH-60 &

AH-80

1.10 Gas Pressure Adjustment

A pressure test point is fitted on the burner manifold and on the gas control valve.

NATURAL GAS G20

NATURAL GAS G25

PROPANE GAS G31

40 136,500 40 136,500

Natural Natural Propane

(mm) (mm) (mm)

5.94 6.75 3.57 1

Model AH-20 AH-40

mbar 8.75 8.75 8.75 in. WC 3.5 3.5 3.5 mbar 8.75 8.75 7.0 in. WC 3.5 3.5 2.8 mbar 25 25 25 in. WC 10 10 10

Natural Propane BTU/hr BTU/hr

No. of

Orifices

(Injectors)

AH-60 &

AH-80

adjustments and conversions, this appliance is CE-approved for use with the following gases:

a) G20 natural gas may be supplied to the

appliance in Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

b) G25 natural gas may be supplied to the

appliance in Belgium, France and the Netherlands.

c) G31 propane gas may be supplied to the

appliance in France, Germany, Ireland, the Netherlands, Portugal, Spain, Switzerland, and the United Kingdom.

Use of the appliance with non-approved gases in a listed country, or use in other countries will void CE certification.

1.11 Burner Adjustment

The burner has a primary air adjustment. The gap should be 1/4" (6.35 mm) to 3/8" (9.53 mm).

Section 2

Assembly and Commissioning

2.1 Assembly 2.3 Electrical Supply

a) Unpack the appliance. Before commissioning the appliance, ensure that the

electrical installation has been carried out to the

b) Place on a firm, level floor. Adjust and fix relevant regulations. (Paragraph 1.5)

feet.

THIS APPLIANCE MUST BE EARTHED.

Caution: Shipping straps are under tension and

can snap back when cut. Take care to avoid personal injury or damage to the unit by staples left in the walls of the carton.

2.2 Gas Supply

Connect the unit to the gas supply and test for gas soundness. For the part of the integral gas supply down stream of the gas valve, leak detection spray or some solution may be used with the burners lit.

Caution: Ensure that the pan contains liquid when the burners are alight.

2.4 Jacket Water Level/Jacket Pressure

a) Ensure the water level is correct in the jacket, by

confirming that the level is between the marks on the gauge glass. If the water is low, follow the instructions under "Jacket Filling" in the servicing section of this manual.

b) Check the pressure gauge. If the gauge does not

show 20 or more inches of vacuum (that is, a reading of 20 to 30 below zero) see "Jacket Vacuum" in the servicing section of this manual.

2.5 Pre-Commissioning Check

OM/SM-AH-CE

a) Prior to operation, clean kettle pan with hot f) Remove governor cap screw on gas control

water and detergent. Rinse thoroughly. valve. See figure for governor position on valve.

b) Remove all literature and packing materials g) Governor is suitable for natural and propane gas.

from the interior and exterior of the unit.

h) To increase pressure turn the screw inside the

c) Ensure the open end or the elbow at the governor turret clockwise, or anti-clockwise to

safety valve outlet is pointed down. If not, turn reduce pressure. Check the burner pressure the elbow to the correct position. See Safety again after 15 minutes and adjust if necessary. Valve Operation Instructions on Page 8.

i) Disconnect pressure gauge from the test point.

2.5.1 Lighting Sequence

j) Re-seal the pressure test point and test for gas

From Initial Start Up:

soundness. a) Put a small amount of water in the kettle pan. b) Ensure gas and electricity mains are “on.” c) Switch the toggle switch to the "on" position. d) Turn thermostat dial to desired setting. e) Observe that the burners ignite by the pilot

lamp illuminating.

f) If the unit does not ignite, it will lock-out. Turn

the unit off and wait for one or two minutes before again attempting to switch it on.

g) Press reset lock-out switch and repeat steps

(b) to (e).

h) To switch unit off, flip toggle (On/Off) switch

to the “off” position.

i) Turn gas and electricity mains off.

2.5.2 Setting The Gas Pressure

a) Check gas pressure during commissioning.

Connect a pressure gauge to the pressure test point on the burner manifold or the gas control valve. See figure for test points.

k) Replace governor cap screw, lid and panels.

2.5.3 Checking Performance of Controls

a) Light the unit (Paragraph 2.5.1). Check that the

controls produce a healthy spark from the

electrode to the earthing post and that ignition is

smooth and without delay.

b) Turn thermostat off and then on. Check that

burners go out when switched off and ignite

smoothly and quickly when switched back on.

Repeat several times.

c) If the unit fails to respond as described above

contact an authorized Groen service agent.

2.6 Instruction to Installer IMPORTANT

After installing and commissioning the appliance, the installer should hand the user's instructions to the user or purchaser. Ensure that the instructions for lighting, turning off, correct use and cleaning are properly understood. Emphasis should be made with regard to the location of the main gas isolating valve. The emergency shut down procedure should be demonstrated.

b) When checking pressure at gas valve test

points, undo the screw a half turn and slip

tube over the nipple. c) Turn the main gas and electricity supplies on. d) Light the burners (Paragraph 2.5.1). e) Remove screws securing control cabinet side

panel. (Paragraph 3.5).

OM/SM-AH-CE

Section 3

Servicing and Conversion

IMPORTANT

BEFORE ATTEMPTING ANY SERVICING, ENSURE THAT THE ISOLATING COCK IS TURNED OFF AND CANNOT BE INADVERTENTLY TURNED ON, AND THAT THE ELECTRICITY SUPPLY IS DISCONNECTED.

AFTER ANY MAINTENANCE TASK, CHECK THE APPLIANCE TO ENSURE THAT IT PERFORMS CORRECTLY AND CARRY OUT ANY NECESSARY ADJUSTMENTS AS DETAILED IN SECTION 1.

ALWAYS CHECK FOR GAS SOUNDNESS AFTER CARRYING OUT ANY SERVICING OR EXCHANGE OF GAS CARRYING COMPONENTS !

NOTE: When replacing wiring connections refer to the wiring diagram on the unit and in this manual. After Servicing

a) Test for gas soundness as specified in

IGE/UP1 as appropriate after any gas

connection has been disturbed. b) Check for correct operation, as appropriate

(see commissioning of appliance).

Regular Servicing Procedures

The following must be serviced at regular intervals. To achieve topmost performance and maximum

Burners

The burner should be cleaned periodically to maintain maximum performance. The burner is best cleaned with a wire brush, taking care not to damage the burner head.

The injector orifice should be cleaned with a wooden splinter. Metal reamers may distort or increase the orifice size and should be avoided.

Safety Valve

At least once every two months the safety valve must be checked. When the gauge pressure is about five PSIG, lift the valve enough to vent steam, then quickly let it snap back into place.

This procedure should be explained to the user, as it is to be carried out at least twice a month. Safety procedures and requirements should also be explained to the user when carrying out the procedure.

Safety Valve Operating Instructions

If adding water to a boiler, DO NOT ALLOW water to flow through safety valve as sediment or debris may be deposited on seating surface.

service life, it is necessary to maintain a proper pressure margin between set pressure of the safety valve and equipment operating pressure.

The minimum required pressure margin for this type of valve is 10% of the safety relief valve set pressure, but not less than five Pounds per Square Inch, Gauge (PSIG). UNDER NO

CIRCUMSTANCES SHOULD THIS MARGIN BE LESS THAN FIVE PSIG.! Failure to

maintain this margin may result in water leakage past the seat and an accumulation of deposits on the seating surface. Excessive deposits may prevent the valve from operating properly, and a dangerous pressure build-up and equipment rupture may result.

Maintenance and Testing

AVOID STEAMAVOID STEAM CONTACTCONTACT

WARNING AVOID ANY EXPOSURE TO THE STEAM BLOWING OUT OF THE SAFETY VALVE.

CAUTION! Before testing, make certain

discharge pipe is properly connected to valve outlet and arranged to contain and safely dispose of boiler discharge (see “Installation Instructions”).

Under normal operating conditions a “try lever test” must be performed every two months. Under severe service conditions, or if corrosion and/or deposits are noticed within the valve

OM/SM-AH-CE

body, testing must be performed more often. A e. Use pipe compound sparingly, or tape, on “try lever test” must also be performed at the external threads only. end of any non-service period.

f. DO NOT USE A PIPE WRENCH! Use Test at or near maximum operating pressure by holding the test lever fully open for at least five seconds to flush the valve seat free of sediment and debris. Release the lever and let the valve snap shut. If lift lever does not activate, or there is no evidence of discharge, discontinue use of equipment immediately and contact a licensed contractor or qualified service personnel.

Neither Conbraco Industries, Inc. nor its agents assume any liability for valves improperly installed or maintained.

proper type and size wrench on wrench pads only.

g. This valve must be mounted in a vertical,

upright position directly to a clean, tapped opening in the top of the boiler or equipment. Under no circumstances should there be a flow restriction or valve of any type between the safety relief valve and the pressure vessel.

h. WARNING! During operation this valve

may discharge large amounts of steam and/or hot water. Therefore, to reduce the potential for bodily injury and property damage, a discharge line MUST be installed that:

1) is connected from the valve outlet with no intervening valve and directed downward to a safe point of discharge

This quality Conbraco safety relief valve, with proper installation, use, and maintenance, will provide many years of reliable service and protection against excessive pressure build-up of water/steam. Use of this valve for any other purpose or media places all responsibility upon the user. Before installing valve or operating equipment to which it is installed, read instructions carefully. Always wear proper safety equipment.

INSTALLATION OF SAFETY VALVE

10-100, 10-200, 10-300, 10-500, & 10-600

Series

a. Installation must be performed by qualified

service personnel only.

b. The Btu/hr or lb/hr rating of this valve must

equal or exceed that of the equipment to which it is attached.

c. DO NOT use this valve on a coal or wood

boiler having an uncontrolled heat input.

d. Ensure that all connections, including the

valve inlet, are clean and free from any foreign material.

2) allows complete drainage of both the valve and the discharge line.

3) is independently supported and securely anchored so as to avoid applied stress on the valve.

4) is as short and straight as possible.

5) terminates freely to atmosphere where any discharge will be clearly visible and is at no risk of freezing.

6) terminates with a plain end that is not threaded.

7) is constructed of a material suitable for exposure to temperatures of 375º F or greater

8) is, over its entire length, of a pipe size equal to or greater than that of the valve outlet.

Use only schedule 40 pipe for discharge. (Do not use schedule 80, extra strong pipe or connections). DO NOT CAP, PLUG, OR

OTHERWISE OBSTRUCT DISCHARGE PIPE OUTLET!

OM/SM-AH-CE

i. See appropriate ASME Boiler and Pressure

Vessel Code for additional installation instructions.

3.1 Conversion — NOTE: See Para 1.9 and 1.10 (Page 6) for important gas proper level, either because water was lost as conversion information. VERIFY steam during venting or because treated water THE TYPE OF GAS TO BE USED. In was lost by draining. the countries listed in Paragraph 1.10 all conversions must be for approved The procedure for adding water is as follows: gas.

To change the type of gas used (e.g. G20 to G25 or G31 or the like), change the following:

Burner injector Pilot orifice Pressure setting Data Plate

The governor spring does not need to be changed- only the pressure setting.

3.2 Jacket Vacuum

When the kettle is cold, a reading that is positive or near zero on the pressure/vacuum gauge indicates excess air in the jacket. Air in the jacket slows down the heating of the kettle.

To remove air:

3.3 Jacket Filling

The jacket has been charged at the factory with the proper amount of treated distilled water. You may need to restore the jacket water to its

a. If you are replacing water lost as steam use

distilled water. If you are replacing treated water that was removed from the jacket, prepare more as directed below.

b. Allow the kettle to cool completely. Using

the proper sized spanner, remove the pipe plug from above the globe valve.

c. Open the globe valve and pour distilled or

treated water in the pipe plug orifice. (See “Water Treatment Procedure,” Paragraph

3.4). Hold the safety valve open while you pour, to let air escape from the jacket.

d. Air introduced to the jacket during the filling

operation must be removed to obtain efficient heating. (See "Jacket Vacuum" section 3.2).

a. Light the unit (see Section 2.5.1). b. When the pressure/vacuum gauge reaches

a positive reading of five PSIG, release air and steam by lifting the lever on the safety valve for about 1 second. Repeat this process a few times, then let the valve snap back into the closed position.

See detailed Instructions on Page 8 pertaining to Safety Valve installation and operation.

WARNING AVOID ANY EXPOSURE TO THE STEAM BLOWING OUT OF THE SAFETY VALVE.

See detailed Instructions on Page 8 pertaining to Safety Valve installation and operation.

3.4 Water Treatment Procedure

WARNING READ AND FOLLOW ALL PRECAUTIONS STATED ON THE LABEL OF THE WATER TREATMENT COMPOUND TO AVOID INJURY.

a. Fill the mixing container with the measured

amount of water required. (See Table). Use distilled water only.

Model Capacity

AH-20 75.7 Liters 17 Liters AH-40 151.4 Liters 26.5 Liters AH-60 227.1 Liters 35.9 Liters AH-80 302.8 Liters 43.5 Liters

Kettle

Capacity

Jacket

(Approx)

OM/SM-AH-CE

b. Hang a strip of pH test paper on the rim of c. Replace in reverse order.

the container, with about 3 cm of the strip extending below the surface of the water. Ensure the low water level control is correctly

oriented when repositioned.

c. Measure the water treatment compound you

will be using. (One way is to add the compound to the water from a small measuring cup).

d. Stir the water continuously, while you slowly

add water treatment compound, until the water reaches a pH between 10.5 and 11.5. Judge the pH by frequently comparing the color of the test strip with the color chart provided in the pH test kit.

e. Record the exact amounts of water and

treatment compound used. These amounts may be used again, if the same sources of water and compound are employed to refill the jacket in the future. However, it is advisable to check the pH every time water is prepared for the jacket.

3.8 Removal of Gas Control Valve - (Turn the

gas and electricity mains off)

a. Remove control panel (Paragraph 3.5) b. Disconnect electrical leads from control

valve. c. Undo fittings on each side of control valve. d. Remove mounting screws from valve. e. Remove control valve from control cabinet. f. Replace in reverse order.

3.9 Removal of ON/OFF Switch and Reset

Button - (Turn the gas and electricity

f. For optimum performance, use correctly

treated, distilled water.

3.5 Removal of Control Panel

a. Remove the two screws at the panel base. b. Remove panel c. Replace in reverse order.

3.6 Removal of Spark Ignition Module (Turn the gas and electricity mains off)

a. Remove control panel (Paragraph 3.5). b. Disconnect electrical leads from spark

ignition module.

c. Remove retaining screws securing spark

ignition module.

d. Withdraw spark ignition module from

supporting bracket.

e. Replace in reverse order.

mains off)

a. Remove control panel (Paragraph 3.5). b. Disconnect electrical leads from the On/Off

switch or reset button.

c. Undo and remove retaining collar which

secures the On/Off switch to the outer surface of the control cabinet, and the reset button to its inner surface.

3.7 Removal of Low Water Level Control (Turn the gas and electricity mains off)

a. Remove control panel (Paragraph 3.5) b. Remove low water level control from its

base by undoing the two retaining clips.

d. Withdraw the On/Off switch or the reset

button as required.

e. Replace in reverse order.

OM/SM-AH-CE

3.10 Removal of Neons - (Turn the gas

and electricity mains off)

a. Remove control panel (Paragraph 3.5). b. Disconnect the electrical leads to the neon. c. Undo and remove the retaining collar which

secures the neon to the control cabinet.

d. Withdraw the neon from the control cabinet. e. Replace in reverse order.

3.11 Removal of Thermostat - (Turn the

gas and electricity mains off)

a. Remove control panel (Paragraph 3.5). b. Tilt the kettle slightly to move the water in

the jacket away from the Phial Boss connection.

c. Undo the Phial Boss connection and

remove the thermostat Phial from the jacket.

3.12 Removal of Pressure Switch - (Turn the gas and electricity mains off)

a. Remove control panel (Paragraph 3.5).

d. Remove thermostat control knob and

disconnect electrical leads.

e. Remove the two mounting screws that

secure the thermostat to the control cabinet.

f. Replace in reverse order. Ensure that an

adequate sealant is used to seal the thermostat Phial Boss.

WARNING ENSURE THAT THE OTHER ELECTRICAL LEADS AND CONNECTIONS SITUATED IN THE KETTLE BASE DO NOT GET WET. REMOVE THEM IF REQUIRED.

Important: If water is lost during thermostat removal replace as described in Paragraph

3.3, Jacket Filling.

b. Disconnect the electrical leads from the

pressure switch.

c. Tilt the kettle slightly to move the water in

the jacket away from the pressure switch pipe fitting.

d. Remove and withdraw the pressure switch

from the fitting. e. Replace in reverse order. f. Once the pressure switch is in place, ensure

that the jacket water level is correct. See

Paragraph 3.3, Jacket Fillings. Always refer to wiring diagram when

reconnecting electrical leads. (See Page 23)

3.13 Low Water Level Sensor - (Turn the

gas and electricity mains off)

a. Remove control panel (Paragraph 3.5). b. Disconnect the electrical lead from the

water level sensor.

Always refer to wiring diagram when reconnecting electrical leads. (See Page 23).

c. Tilt the kettle slightly to move the water in

the jacket away from the sensor coupling on

the jacket

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d. Remove the low water sensor from the g. Once the burners ignite, ensure that the

jacket. sparking sequence stops and the burners

remain lit.

e. Replace in reverse order.

h. If the burners do not light, or ignite but do

f. Ensure a suitable sealant is used to seal the not remain lit, then adjustment to the

low water level sensor coupling. sparking or sensing electrode is required.

g. Once the low water level sensor is in place,

check the jacket water level. See Paragraph

3.3, Jacket Fillings.

3.14 Removal of Burners - (Turn the gas

and electricity mains off)

a. Undo union on gas pipe to burner manifold. glass. b. Remove the two retaining nuts securing the c. Replace with new pressure gauge ensuring

burner manifold to the combustion chamber. that an adequate sealing compound is used.

c. Carefully support the weight of the burner d. Once the pressure gauge has been

manifold and lower the assembly to a safe replaced, the kettle jacket will need to be position. vented. See Paragraph 3.2, Jacket

d. The burner is accessible and the orifice can

be changed as required. e. Replace in reverse order. Always check for gas soundness when any part

of the gas circuit has been disturbed.

3.15 Removal of Pilot Assembly

(Spark/Sensing Electrodes) - (Turn the gas and electricity mains off)

3.16 Removal of Pressure Gauge - (Turn

the gas and electricity mains off)

a. Remove control panel (Paragraph 3.5). b. Using the correctly sized spanner remove

the pressure gauge from the top of the sight

Vacuum.

3.17 Removal of Sight Glass - (Turn the gas and electricity mains off)

a. Remove control panel (Paragraph 3.5). b. Remove sight glass protection bars. c. Undo top and bottom compression fittings. d. Allow the water in the sight glass to drain.

a. Undo the compression fitting on the pilot

line attached to the burner.

b. Remove the two retaining screws securing

the spark electrode/pilot bracket on the burner.

c. Withdraw the pilot assembly from the burner

chamber. The pilot orifice can now be changed as required

d. Disconnect the high temperature lead wire

connection to the sparking electrode or the

sensing electrode as required. e. Replace in reverse order. f. Ensure that there is an adequate spark at

the sparking electrode and that the burners

light smoothly and without delay.

e. Remove the sight glass. f. Replace in reverse order. g. Once the sight glass has been replaced,

the lost jacket water needs to be replaced. See Paragraph 3.3. Jacket Filling.

3.18 Removal of Safety Valve - (Turn the

gas and electricity mains off)

See detailed Instructions on Page 8 pertaining to Safety Valve installation and operation.

a. Remove the elbow from the safety valve. b. Remove the safety valve from kettle jacket

pipework.

c. Replace in reverse order

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d. Ensure an adequate sealing compound is d. Once the fill valve has been replaced the

used to seal the safety valve. jacket will need to be vented. See Section

3.2 Jacket Vacuum.

e) Once the safety valve has been replaced

the jacket will need to be vented. See

Paragraph 3.2 Jacket Vacuum.

3.20 Fuse Replacement - (Turn the gas and electricity mains off)

3.19 Removal of Filling Valve - (Turn the

gas and electricity mains off)

a. Remove filling valve from kettle jacket

pipework. c. Replace fuse (identical to fuse removed b. Replace in reverse order. d. Replace in reverse order. c. Ensure adequate sealing compound is used

to seal the valve.

a. Remove control panel (Paragraph 3.5). b. Remove fuse from vertical fuse holder.

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4. Troubleshooting

Your Groen kettle is designed to operate smoothly and efficiently if properly maintained. However, the following are checks to make in the event of a problem. Wiring diagrams are inside the service panel.

USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL WARRANTIES.

SYMPTOM WHO WHAT TO CHECK

Burners will not light. User a. Is main gas valve open (handle in line with gas

pipe)? b. Gas supply to your building. c. Is electric power turned on at the circuit breaker or

fuse box, and is power being supplied to the

appliance d. Thermostat operation.

Kettle continues heating after it User a. Thermostat dial setting. reaches the desired temperature.

Kettle stops heating before it User a. Thermostat dial setting. reaches the desired temperature.

Kettle heats slowly User a. Air in jacket - pressure/vacuum gauge (20 to 30

Safety valve pops. User a. Air in jacket - pressure/vacuum gauge (20 to 30

System does not produce a spark Auth a. Thermostat: close the contacts if they are open Y

Spark is present but the pilot will not Auth a. That the gas valve is opening.Y light. Service b. That pressure meets the control manufacturer’s

Pilot lights, but main burner will not Auth a. That the gas pressure meets the control come on and spark does not stay Service manufacturer’s specifications.Y on. Rep Only b. Replace electric moduleY

Auth b. Thermostat calibration.Y Service c. Thermostat operation. Thermostat should click when Rep Only the dial is rotated above and below a setting.Y

Auth b. Thermostat calibration. Y Service c. Thermostat. Thermostat should click when the dial is Rep Only rotated above and below a setting.Y

below zero when the kettle is cold?)

below zero when the kettle is cold?) b. Whether kettle was being heated while empty.

Auth c. If high pressure limit switch is set too high. Y Service d. Thermostat. Thermostat should click when the dial Rep Only is rotated above and below a setting. Y

e. Safety valve. If valve pops below 300 PSIG,

replace.Y

Service b. AC voltage between terminals “1" and “GR.” If it is Rep Only not 230 Volt, check the high limit switch, which

should be closed. Y c. That the high tension cable is firmly attached and in

good condition. If cracked or brittle, replace the

pilot.Y e. Electrode ceramic for crack or break.Y f. Replace the electronic spark ignition module.Y

Rep Only specifications.Y

c. For gas at the pilot. If it is not flowing:

(1) Check pilot gas line for kinks or obstructions.Y

(2) Clean orifice, if necessary.Y

(3) Replace the pilot valve.Y

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SYMPTOM WHO WHAT TO CHECK

Pilot lights, but main burner will not Auth a. Sensor cable, to make certain that there are secure come on, the spark stays on. Service attachments to terminal “13" and the sensor.Y

Rep Only b. Sensor ceramic for cracks.Y

c. That cable is not grounded out. If it is, correct the

ground.Y d. Sensor cable for continuity and condition of

insulation.Y e. (1) Check the gas pressure.Y

(2) Clean the pilot Assembly.Y

(3) Tighten mechanical and electrical connections.Y

5. User Instructions

Regulations and Safety Precautions

These Appliances have been CE marked on the basis of compliance with the Gas Appliance Directive, EMC and Low Voltage Directive for the Countries, Gas Types and Pressures as stated on the Data Plate.

These appliances MUST BE installed by a competent person in compliance with the INSTALLATION AND SERVICING INSTRUCTIONS and National Regulations in force at the time. Particular attention MUST be paid to the following:

I.E.E. Regulations for Electrical Installations Electricity at Work Regulations Gas Safety (Installation & Use) Regulations Health and Safety at Work Act

Furthermore, if a need arises to convert the appliance for use with another gas, a competent person must be consulted. Those parts which have been protected by the manufacturer MUST NOT be adjusted by the User.

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WARNING TO PREVENT SHOCKS, ALL APPLIANCES WHETHER GAS OR ELECTRIC, MUST BE EARTHED.

Upon receipt of the User's Instruction manual, the installer should instruct the responsible person(s) of the correct operation and maintenance of the Appliance.

Users should be conversant with the appropriate provisions of the Fire Precautions Act and the requirements of the Gas Safety Regulations. In particular the need for regular servicing by a competent person to ensure the continued safe and efficient performance of the Appliance.

5.1

Equipment Description

5.1.1 General The kettle is charged at the factory with treated,

distilled water. The steam source provides kettle Groen AH models are stainless steel, steam- temperatures of 65° C to 134° C. Controls for the jacketed, floor mounted, stationary kettles with a unit include a thermostat, pressure gauge, gauge self-contained, gas heated steam source. The glass, safety valve, pressure limit control, low kettle body is welded into one piece and is water cut-off, on/off switch, and a multisheathed in stainless steel and insulated with functional gas control valve. fiber bat insulation. The interior and exterior are given a bright buff finish. Service connections are required for gas and

230-V, single phase 50-Hz electricity. See The unit is ASME shop inspected and registered Paragraph 3.4 - Water Treatment. with the National Board for working pressure up to 30 PSIG. Kettle controls are contained in an IMPORTANT enclosed stainless steel enclosure. The unit rests on tubular legs with adjustable ball feet. AH Prior to operation, clean out the kettle pan kettles come standard with stainless steel covers thoroughly using hot water and detergent. and two inch (five cm) sanitary tangent draw-off Rinse out and dry completely. valve.

The self-contained steam source is heated by propane or natural gas. Ignition is by electronic spark.

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The gas burners are protected by an electronic flame failure device which incorporates automatic ignition of the burners and instant shut-off of the gas supply to the burners should a gas supply interruption occur.

Options available with listed models are:

1. Three inch (7.6 cm) tangent draw-off valve. (Factory-installed option)

2. Basket inserts.

WARNING INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY, GAS AND PLUMBING IN ACCORDANCE WITH ALL APPLICABLE CODES.

3. Water filler with swing spout and bracket.

4. Kettle brush kit.

5.1.2 Operational and Maintenance Safety

CAUTION BE SURE ALL OPERATORS READ, UNDERSTAND AND FOLLOW OPERATING INSTRUCTIONS, CAUTIONS AND SAFETY INSTRUCTIONS IN THIS MANUAL.

BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY AND CLOSE THE MAIN GAS COCK. ALLOW FIVE MINUTES FOR UNBURNED GAS TO VENT.

TO PREVENT SHOCKS, ALL APPLIANCES WHETHER GAS OR ELECTRIC, MUST BE EARTHED.

5.2 Lighting and Operation

5.2.1 Initial Kettle Lighting and Operational require venting. (This will require a Readiness Check service call).

After the AH Kettle has been installed according 6. Switch the On/Off switch to the "On" to service and installation instructions, perform position. The "power on" neon will initial start-up as a test to ensure that the unit is illuminate. operating correctly. Follow the steps below. Refer to the picture for identification of AH 7. Turn the thermostat dial to the required controls and indicators. setting.

1. Remove all literature and packing 8. After 10-15 seconds the burners should material from the interior and exterior of light. The "burners on" neon will the unit. illuminate.

2. Make sure gas and electricity supplies 9. In the event the burners do not light, or are switched on. go out as indicated by the illumination of

the lockout indicating neon, turn the unit

3. Ensure that the kettle is filled with water off. Wait approx 1 minute. Press lockout before lighting. reset switch and repeat steps (4) to (8).

4. Check the water level in the jacket. The level should be between the lines on the gauge glass. If the level is low, the jacket water level will be required to be topped up. (This will require a service call).

5. Check the pressure gauge. If the gauge does not show sufficient vacuum (that is, 20 to 30 below zero), the jacket will

AVOID CONTACT WITH THE FLUE. SURFACES ARE VERY HOT AND WILL CAUSE BURNS.

DO NOT OBSTRUCT FLUE EXHAUST OPENING.

WARNING

POWER ON NEON

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POWER ON

BURNERS ON NEON

LOCKOUT INDICATING NEON

THERMOSTAT

POWER ON SWITCH

HEAT

LOCKOUT

POWER

LOCKOUT

OFF

RESET SWITCH

RESET

Controls on the AH-CE model are easy to understand and use.

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5.2.2 To Shut Down Kettle 1. Low-water cutoff relay that will shut off

the gas supply to all burners until the

1. Turn the thermostat dial to the Off water level is corrected. position.

2. High pressure switch, set to open at

2. Switch the On/Off switch to the Off about 27 PSIG and shut down the position. burners until jacket pressure is

decreased.

3. For a prolonged shut down follow steps 1 and 2, and turn the gas and electricity 3. Pop safety valve, which will release supplies off. steam if the jacket pressure exceeds 30

PSIG.

5.2.3 Filling the Kettle

See detailed Instructions on Page 8 pertaining to Prior to operation of the unit, clean out the kettle Safety Valve installation and operation. pan thoroughly, using hot water and detergent.

When the kettle reaches the set temperature, Kettle Capacities: the thermostat switch opens, stopping the signal

to the gas control valve and causing the valve to

Model Capacity

AH-20 75.7 Liters AH-40 151.4 Liters AH-60 227.1 Liters AH-80 302.8 Liters

shut off all gas flow. When the kettle cools below

the set temperature, the thermostat switch

closes and starts another heating cycle. On-off

cycling continues and maintains the kettle at the

desired temperature.

5.2.6 To Empty Kettle

Note that these are maximum capacities. Groen recommends that no more than 80% of the maximum capacity be used during operation.

5.2.4 Users Thermostat

The thermostat provides automatic control of the Kettle Jacket temperature at selected settings to a maximum of 134° C.

5.2.5 Sequence of Operation

The following "sequence of operation" outline is provided to help the user understand the functioning of the unit.

When the operator sets the desired temperature on the thermostat dial, the thermostat switch closes and sends a signal which (1) starts the spark and (2) opens the automatic valve for the burners. The spark ignites the burner on low flow. The flame completes a circuit at the sensing probe and sends a signal that causes the spark to shut off and the automatic valve to open to full flow once a flame has been detected. If a flame is not detected within 15 seconds the gas is automatically cut off and the appliance is locked out. The unit can only be relit once the reset button has been pressed.

In addition to the lockout timer, safety features include:

Turn the handle on the tangent draw off valve

anti-clockwise. After approximately 3½ turns the

valve handle can be pulled forward and full flow

achieved. To close the tangent draw off valve,

push the valve handle inward until the threads

on the valve stem engage. Turn the handle

clockwise until the valve is closed. Do not over

tighten the valve since over-tightening may

damage the valve seat.

HOT HOT

SURFACESURFACES

WARNING WHEN EMPTYING THE KETTLE BE CAREFUL TO KEEP HOT CONTENTS FROM SPILLING. AVOID DIRECT SKIN CONTACT. ENSURE PEOPLE ARE KEPT AWAY FROM THE KETTLE WHEN EMPTYING IT.

5.2.7 Power Failure

If power to the unit fails, do not attempt to operate the appliance until the electricity supply is reestablished.

When the power comes back on, follow the steps in Paragraph 5.2.1 (Initial Kettle Lighting and Operational Readiness Check.)

5.3 Cleaning and Maintenance

IMPORTANT Disconnect the electricity supply before any cleaning is undertaken. The appliance must not be cleaned with a jet of water, nor steam-cleaned.

5.3.1 Suggested Tools

1. Detergent and sanitizing agent, or a combination cleaning - sanitizing agent.

2. Long handled and short handled kettle brushes.

5.3.2 Precautions

Before cleaning, shut off the burner by turning the thermostat dial to "OFF". If water or cleaning/sanitizing solution will be sprayed, shut off all electric power to the unit at a remote switch such as the circuit breaker.

WARNING KEEP WATER AND SOLUTIONS OUT OF CONTROLS. NEVER SPRAY OR HOSE DOWN THE CONTROL CONSOLE.

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Use a brush, sponge, cloth, plastic or rubber to remove materials stuck to the surface.

plastic or rubber scraper, or plastic wool along with the detergent solution. To minimize the effort required in washing, let the detergent solution sit in the kettle and soak into the residue, or briefly heat the detergent solution.

5.3.3 Procedure

1. Clean all food contact surfaces as soon as possible after use, preferably while the kettle is still hot. If the unit is in continuous use, thoroughly clean and sanitize both interior and exterior at

least once every 12 hours.

2. Scrape and flush out large amounts of food residues. Be careful not to scratch the kettle with metal implements.

3. Prepare a solution of the detergent/ cleaning compound as instructed by the supplier. Clean the unit thoroughly. A cloth moistened with cleaning solution may be used to clean controls, control housings and electrical conduits.

4. As part of the daily cleaning program, clean all external and internal surfaces that may have been soiled. Remember to check such parts as the underside of the kettle and control housing.

5. To remove materials stuck to the equipment, use a brush, sponge, cloth,

Do not use any abrasive materials or metal implement that might scratch the surface because scratches make the surface hard to clean and provide places for bacteria to grow. DO NOT use steel wool, which may leave particles imbedded in the surface and cause eventual corrosion and pitting.

Do not use metal implements or steel wool.

6. The exterior of the unit may be polished with a recognized stainless steel cleaner or with water and detergent.

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7. When equipment needs to be sanitized, 5.3.4 Safety Precautions use a solution equivalent to one that supplies 200 parts per million available A stopcock will be fitted in the gas pipe chlorine. Obtain advice on the best supplying the appliance. The user must be sanitizing agent from your products familiar with its location and operation so that it supplier. Follow the supplier’s may be turned off in an emergency. If there is a instructions and apply the agent after the smell of gas, turn off the gas, ventilate the area unit has been cleaned and drained. and call the gas supplier. Do not search for gas Thoroughly rinse off the sanitizing agent. leaks with naked flames.

CAUTION NEVER LEAVE A CHLORINE SANITIZING AGENT IN CONTACT WITH STAINLESS STEEL SURFACES LONGER THAN 30 MINUTES. LONGER CONTACT CAUSES CORROSION.

8. It is recommended that the unit be sanitized before use.

9. If there is difficulty removing mineral deposits or a film left by hard water or food residue, clean the kettle thoroughly. Then use a de-liming agent, such as Groen Delimer Descaler (P/N 114800) or Lime-Away from EcoLab, Inc, in accordance with the manufacturer's directions. Rinse and drain the unit before further use.

10. If especially difficult cleaning problems persist, contact your cleaning product supplier for assistance.

5.3.5 Service/Periodic Maintenance

A Maintenance and Service Log is included in this manual. Each time maintenance is performed on your Groen equipment, enter the date on which it was done, what was done, and who did it. Keep the manual, its warranty and the log near the unit. Periodic inspection can minimize equipment down time and increase the efficiency of operation. The following points should be checked regularly.

1. The pressure/vacuum gauge should show a vacuum of 20 to 30 inches when the kettle is cold. If it does not, the unit requires servicing.

2. The jacket water level should be between the marks on the gauge glass. If it is not, the unit requires servicing.

3. Keep electrical wiring in good condition.

OM/SM-AH-CE

Parts Lists

OM/SM-AH-CE

Parts Lists

Key Description Part No. Key Description Part No.

7 Foot, Adjustable Bullet 013275 43 Switch Push Button (momentary) 122003 9 Bracket Burner Support, AH/1-60, -80 000388 44 Thermostat 012313

9 Bracket Burner Support, AH/1-20, -40 000336 45 Thermostat Adapter (shaft bushing) 107172 10 Bracket Burner Head AH/1-60, -80 000389 46 Screw, Rnd Hd slotted 8-32 x 3/8 lg 009697 10 Bracket Burner Head AH/1-20, -40 000337 47 Knob, Thermostat 122000

11* Burner Assy. (Natural G20) (80 60) 117730A 48 Electrical Panel Assembly 117732 11* Burner Assy. (Natural G20) (40) 117795A 50 Label, Wiring Diagram 113077 11* Burner Assy. (Natural G20) (20) 117731A Wire Harness ** 117727 11* Burner Assy. (Natural G25) (80 60) 117730C 54 Water Level Electrode 074665 11* Burner Assy. (Natural G25) (40) 117795C 56 Boot Electrode 010390 11* Burner Assy. (Natural G25) (20) 117731C 57 Pressure Switch, High Limit 108559 11* Burner Assy. (Propane G31) (80, 60) 117730B 58 TDO Kit replacement parts 100573 11* Burner Assy. (Propane G31) (40) 117795B 58a Valve Stem 009048 11* Burner Assy. (Propane G31) (20) 117731B 58b Bonnet 009047 11* Burner Injector (Natural G20) (80 60) 000399 58c O-Ring 009034 11* Burner Injector (Natural G20) (40) 000280 58d Hex Nut 009354 11* Burner Injector (Natural G20) (20) 000480 58e Handle 009029 11* Burner Injector (Natural G25) (80 60) 127386 58f Wing Nut 009028 11* Burner Injector (Natural G25) (40) 127385 59 Bracket, Faucet Mounting 009054 11* Burner Injector (Natural G25) (20) 127384 61 Data Plate, CE Mark Kettles 114504 11* Burner Injector (PropaneG31) (80 60) 000403 62 Nameplate, Groen, Large 055450

11* Burner Injector (Propane G31) (40) 000281 68 Cover Assy w/Power Aid AH/1-80** 047694

11* Burner Injector (Propane G31) (20) 000281 68 Cover Assy w/Power Aid AH/1-60** 049884

13 Radiation Shield Assy, AH/1-60, -80 000445 68 Cover Assy w/Power Aid AH/1-40** 067417 13 Radiation Shield Assy, AH/1-20, -40 000448 68 Cover Assy w/Power Aid AH/1-20** 047695 17 Cover Panel, AH/1-80 117721 Users Manual** 122039 17 Cover Panel, AH/1-60 117720 71 Assembly, Equipotential Terminal 122021 17 Cover Panel, AH/1-40 117719 73 Wire Assembly, Supplementary 122013 17 Cover Panel, AH/1-20 117718 74 Wire Assembly, Flame Rod 122034 21 Insulator, Pilot Burner Access 008201 79 Adapter 1/2” BSPT (M) x1/2"NPT (F) 116392 22 Door, Pilot Burner Access 004035 80 Pilot Ignition Controller 113060 23 Hinge, Pilot Door 004114 81 Liquid Level Control Relay 117737 32 Safety Valve & Water Fill Assembly 097010 82 Liquid Level Control Relay Base 117738 33 Plate with Chain Assembly 008332 83 Terminal Block 003119 34 Water Gauge Fitting 004071 84 Fuse (Three Amp) 079965 37 Sight tube, 5/8” Diameter x 4-3/4” lg 008742 85 Fuse Block 077854 38 Pressure Gauge 2-1/2“dia (dual scale) 084208 86 Pilot Burner & Orifice Assy (Natural) 117704 39 Overlay, Panel 117716+ 87 Pilot Burner & Orifice Assy (Propane) 117705 40 Switch, Toggle, DPST 122004 88 Pilot Burner Mounting Bracket 004425 41 Light Indicator Red, 240V 116381 89 Water Treatment Kit 110324 42 Light Indicator, Amber 240V 116382

*NOTE: See Para 1.10 (Page 6) for permissible conversions.

** Not Shown

OM/SM-AH-CE

Parts Lists

Keyed to Parts Listing on Page 29

30E

INSTALL WITH 1/2"BSPT THREADS TOWARD GAS VALVE

Gas Valve and Piping Assembly, AH/1-20

8 8

INSTALL WITH 1/2"BSPT THREADS TOWARD GAS VALVE

Parts List

Keyed to Parts Listing on Page 29

OM/SM-AH-CE

INSTALL WITH 1/2"BSPT THREADS TOWARD GAS VALVE

8 8

30E

INSTALL WITH 1/2"BSPT THREADS TOWARD GAS VALVE

Gas Valve and Piping Assembly, AH/1-40

OM/SM-AH-CE

Parts List

Keyed to Parts Listing on Page 29

INSTALL WITH 1/2"BSPT THREAD TOWARDS GAS VALVE

15 B

30E

INSTALL WITH 1/2"BSPT THREAD TOWARDS GAS VALVE

Gas Valve and Piping Assembly, AH/1-60, 1-80

OM/SM-AH-CE

Parts List

Key Description Part No. Key Description Part No.

1 90º Elbow 1/2” NPT (black) 008747 9 Bracket, Gas Valve Mounting (AH-20) 122080 2 Union 3/8” NPT (black) (AH-20) 005686 10 Screw, Phillips Pan Hd M5 x 10 mm 116388 2 Union 1/2” NPT (black) (AH-40 004186 11 Gas Valve 114505 2 Union elbow 1/2”NPT(black)(AH-60 80) 005495 12 Bushing Reducing 1/2” x 1/8" NPT 088290 3 Gas Test Nipple 117051 (black) (AH-40, 60, 80) 4 Cross, 1/2” NPT (black) (AH-20) 060241 12 Bushing Reducing 3/8”x 1/8" NPT 049943 4 Cross, 3/8” NPT (black) (AH-40,60,80) 097587 (AH-20) 5 Nipple 1/2” NPTx4"Lg. (black) 005554 13 Bushing Reducing 1/2”x 3/8" NPT 007442 6 Nipple 3/8” NPT x 4-1/2” Lg. (black) 005635 (AH-40)

(AH-20) 13 Bushing Reducing 1/2” x 1/8" NPT 088290 6 Nipple 1/2” NPTx4”Lg.(black)(AH-40) 005554 (AH-60,80) 6 Nipple1/2”NPTx5-1/2”Lg.(black) 010234 14 Bushing Reducing 3/8” x 1/4" NPT 013296

(AH-60, 80) (AH-20) 7 Nipple, 3/8” NPT, close (black) AH-20 007439 14 Bushing Reducing 1/2” x 1/4" NPT 008739 7 Nipple, 1/2” NPT, close (black) AH-40 008877 (AH-40) 7 Nipple, 1/2” NPT, 3"Lg (black) AH-60 005553 14 Bushing Reducing 1” x 1-1/2” NPT 002647 7 Nipple, 1/2” NPT, 4"Lg (black) AH-80 005554 (AH-60,80) 8 Nipple 1/2" NPT x 1/2” BSPT (brass) 116394 16 Nipple 1/2” NPT x 8 Lg. (black) 005557 9 Bracket, Gas Valve Mounting 117717 19 Adaptor 1/8” Female BSPP x 122087

(AH-40,60,80) 1/8” Male NPT

OM/SM-AH-CE

Service Log

Model m _________________________________ Purchased From _________________________ Serial m _________________________________ Location ________________________________ Date Purchased ___________________________ Date Installed ___________________________ Purchase Order m _________________________ For Service Call __________________________

Date Service Performed Performed By

Limited Warranty To Commercial Purchasers*

(for Areas Outside of the U.S. and Canada) Groen Foodservice Equipment ("Groen Equipment") has been skillfully manufactured, carefully inspected

and packaged to meet rigid standards of excellence. Groen warrants its Equipment to be free from defects in material and workmanship for ( 12) twelve months from date of installation or ( 18) eighteen months from date of shipment with the following conditions and subject to the following limitations.

I. This parts warranty is limited to Groen Equipment sold to the original commercial purchaser/users

(but not original equipment manufacturers), at its original place of installation, in areas outside the U.S. and Canada.

II. Damage during shipment is to be reported to the carrier, is not covered under this warranty, and is

the sole responsibility of the purchaser/user.

III. Groen, or an authorized service representative, will repair or replace parts, at Groen's sole election,

for any Groen Equipment, including but not limited to, draw-off valves, safety valves, gas and electric components, found to be defective during the warranty period.

IV. This warranty does not cover boiler maintenance, calibration, or periodic adjustments as specified in

operating instructions or manuals, and consumable parts such as scraper blades, gaskets, packing, etc., or labor costs incurred for removal of adjacent equipment or objects to gain access to Groen Equipment. This warranty does not cover defects caused by improper installation, abuse, careless operation, or improper maintenance of equipment. This warranty does not cover damage caused by poor water quality or improper boiler maintenance.

v. THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED

OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, EACH OF WHICH IS HEREBY EXPRESSLY DISCLAIMED. THE REMEDIES DESCRIBED ABOVE ARE EXCLUSIVE AND IN NO EVENT SHALL GROEN BE LIABLE FOR SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR THE BREACH OR DELAY IN PERFORMANCE OF THIS WARRANTY.

VI. Groen Equipment is for commercial use only. If sold as a component of another (O.E.M.)

manufacturer's equipment or if used as a consumer product, such Equipment is sold AS IS and without any warranty.

* (Covers All Food Service Equipment Ordered After October 1,1995)

1055 Mendell Davis Drive Jackson, Mississippi 39272 Telephone 601 373-3903 FAX 601 373-9587

OM/SM-AH-CE

Part Number 128416

Revised 4/99

Groen AH-80 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual