Groen TDB-7-20-SN1 Installation Manual

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IMPORTANT INFORMATION

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IMPORTANT INFORMATION

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IMPORTANT INFORMATIONIMPORTANT INFORMATION

OPERATOR MANUAL OM-TDB/7

Part Number 121002 DOMESTIC

MODEL: TDB/7

Steam Jacketed Kettl e

Self-Contained Electrically heated Table t op mounte d Tilting

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

FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER F L AMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.

OM-TDB/7

IMPORTANT — READ FIRST — IMPORTANT

CAUTION: BE SURE ALL OPERATORS READ, UNDERSTAND AND FOLLOW THE OPERATING

INSTRUCTIONS,

WARNING: THIS UNIT IS INTENDED FOR USE IN THE COMMERCIAL HEATING, COOKING AND

HOLDING OF WATER AND FOOD PRODUCTS, PER THE INSTRUCTIONS CONTAINED IN THIS MANUAL. ANY OTHER USE COULD RESULT IN SERIOUS PERSONAL INJURY OR DAMAGE TO THE EQUIPMENT AND WILL VOID WARRANTY.

WARNING: KETTLE MUST BE INSTALLED BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY.

IMPROPER INSTALLATION CAN RESULT IN INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.

DANGER: ELECTRICALLY GROUND THE UNIT AT THE TERMINAL PROVIDED. FAILURE TO GROUND

UNIT COULD RESULT IN ELECTROCUTION AND DEATH.

WARNING: AVOID ALL DIRECT CONTACT WITH HOT EQUIPMENT SURFACES. DIRECT SKIN

CONTACT COULD RESULT IN SEVER E BURNS.

WARNING: AVOID ALL DIRECT CONTACT WITH HOT FOOD OR WATER IN THE KETTLE. DIRECT

CONTACT COULD RESULT IN SEVER E BURNS.

CAUTION: DO NOT OVER FILL THE KETTLE WHEN COOKING, HOLDING OR CLEANING. KEEP

LIQU IDS A MINIMUM OF 2-3” (5- 8 cm) BELOW THE KETTLE BODY R IM TO ALLOW CLEARANCE FOR STIRRING, BOILING AND SAFE PRODUCT TRANSFER.

WARNING: TAKE SPECIAL CARE TO A VOID CON TACT WITH H OT KETTLE BODY OR HOT PRODUCT

WHEN ADDING INGREDIENTS, STIRRING OR TRANSFERRING PRODUCT TO ANOTHER CONTAINER.

WARNING: WHEN TILTING KETTLE FOR PRODUCT TRANSFER:

WEAR PROTECTIVE OVEN MITT AND PROTECTIVE A PRON.

1) USE CONTAINER DEEP ENOUGH TO CONTAIN A ND MINIMIZ E PRODUCT SPLASHI NG.

3) PLACE CONTAINER ON STABLE, FLAT SURFACE, AS CLOSE TO KETTLE AS POSSIBLE.

4) STAND TO LEFT OR RIGHT SIDE OF KETTLE (DEPENDIN G O N TILTING HANDLE PLACEMENT) WHILE POURING . DO NOT STAND DIRECTLY IN POUR PATH OF HOT CONTENTS. POUR SLOWLY, MAINTAIN CONTROL OF KETTLE BODY HANDLE AT ALL TIMES, AND

5) RETURN KETTLE BODY TO UPRIGHT POSITION AFTER CONTAINER IS FILLED OR TRANSFER IS COMPLETE.

6) DO NOT OVER FILL CONTAINER. AVOID DIRECT SKIN CONTACT WITH HOT CONTAINER AND ITS CONTENTS.

CAUTIONS, AND SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL.

CAUTION: KEEP

WARNING: FAILURE TO CHECK SAFETY VALVE OPERATION PERIODICALLY COULD RESULT IN

WARNING: WHEN TESTING, AVOID ANY EXPOSURE TO THE STEAM BLOWI NG OUT OF THE SAFETY

WARNING: TO AVOID INJURY, READ AND FOLLOW ALL PRECAUTIONS STATED ON THE LABEL OF

WARNING: BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER

FLOORS IN FRONT OF KETTLE WORK AREA CLEAN AND DRY. IF SPILLS OCCUR,

CLEAN

PERSONAL INJURY AND/OR DAMAGE TO EQUIPMENT.

VALVE. DIRECT CONTACT COULD R ESULT IN SEVERE BURNS.

THE WATER TREATMENT COMPOUND.

SUPPLY.

IMMEDIATELY, TO AVOID SLIPS OR FALLS.

OM-TDB/7

IMPORTANT — READ FIRST — IMPORTANT

WARNING: KEEP WATER AND SOLUTIONS OUT OF CONTROLS A ND ELECTRI CAL EQUIPMENT.

NEVER SPRAY OR H OSE THE SUPPORT HOUSING OR ELECTRIC AL CONNECTIONS.

CAUTION: MOST CLEANERS ARE HARMFUL TO THE SKIN, EYES, MUCO US MEMBRANES AND

CLOTHING . PRECAUTIONS SHOULD BE TAKEN . W EAR RUBBER GLOVES, GOGGLES OR FACE SHIELD AND PROTECTIVE CLOTHING. CAREFULLY READ THE WARNINGS AND FOLLOW THE DI RECTIONS ON THE LA BEL OF THE CLEAN ER TO BE USED.

CAUTION: USE

OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR THEIR

AUTHORIZED EQUIPMENT, AND WILL VOID ALL WARRANTIES.

DISTRIBUTORS CAN CAUSE OPERATOR INJURY AND DAMAGE TO THE

IMPORTANT:

SERVICE PERFORMED BY OTHER THAN FACTORY AUTHORIZED PERSONNEL WILL VOID WARRANTIES.

OM-TDB/7

Table of Contents

IMPORTANT OPERATOR WARNINGS ................................................................ 2

EQUIPMENT DESCRIPTION......................................................................... 5

INSPECTION & UNPACKING ......................................................................... 7

INSTALLATION .................................................................................... 8

INITIAL START-UP ................................................................................. 9

OPERATION...................................................................................... 10

SEQUENCE OF OPERATION ....................................................................... 12

MAINTENANCE ................................................................................... 13

CLEANING ....................................................................................... 17

TROUBLESHOOTING.............................................................................. 19 PARTS LISTS

Units Manufactured Before Sept. 1, 1988 ........................................................... 20

Units Manufactured Between Sept. 1, 1988 and Ju ly 1, 1992 ........................................... 22

Units Manufactured Between July 1, 1992 and Feb. 6, 1995 ............................................ 24

Units Manufactured After Feb. 6, 1995 ............................................................. 26

DIAGRAMS & SCHEM ATICS

Units Manufactured Before Sept. 1, 1988 ........................................................... 30 Units Manufactured After Sept. 1, 1988 and

Before June 1, 1990 ........................................................................ 33

Units Manufactured After June 1, 1990 and

Before July 1, 1992 ......................................................................... 36

Units Manufactured After June 1, 1990 and

Before Feb. 6, 1995 ......................................................................... 37

Units Manufactured After July 1, 1992 a nd

Before Feb. 6, 1995 ......................................................................... 38

Units Manufactured After Feb. 6, 1995 ............................................................. 39

SERVICE LOG .................................................................................... 42

REFERENCES .................................................................................... 42

WARRANTY ...................................................................................... 43

Equi p men t D escr i p ti o n

OM-TDB/7

The Groen TD B/7 is a table top, til ting, steam jacketed k ettle w ith a th ermostatically controlled, self-contained, electrically-h eated steam supply a nd appropriate con trols, m ounted on a sturdy base. Th e Model TDB/ 7 is available in 20 or 40 - quart capacity.

The body of the TDB/ 7 Kettle is constru cted of stainless steel, w elded into one solid piece. Th e kettl e is furn ished with a reinfor ced rim and a butterfly shaped pouri ng lip. It has a st eam jacket rated for worki ng pressur es up to 50 PSI. Kettle fin ish is 180 emery grit on the inside and bright semideluxe on the outside. A tilt handle allows the operator to manually tilt the kettle body in a controlled manner. Pouring height accepts pans up to 4 inches high on a table top.

A built-in stea m generat or, sized for the k ettle capacity and heated by electricit y, delivers stea m into the ja cket. “Airless” oper ation of the stea m jacket perm its uniform, efficient heating at temperatu res a s low as 150°F a nd as hi gh as 295°F. In addition to th e adjustable thermost at for operatin g control, the unit has a tilt cut-off switch, low water cut-off, safety val ve, an d high- lim it pressu re switch as safety features. A heating indicator light, pressure gauge, a nd sight gla ss are prov ided for monitoring kettle operation .

A single electrical connection is required for installation. The u nit ma y be ordered for use w ith 208/240 or 480 volt power. A ll kettles ar e wired for three-ph ase operation. For sin gle-phase conversion, see the wiring diagrams in this manual.

KETTLE CHARACTERISTICS

TDB/7-20+ TDB/7-40 Kett le Capacity 20 qts. 18.8 l iters 40 qts. 37.6 liters Jacket C apacity 4 qts. 3.7 l iters 5 qts. 4.7 l iters Diamet er 14” 36 cm 16-1/2” 42 cm Depth 11” 28 cm 14-1/4” 36 cm K.W. at 208 V 6.3 10.8 K.W. at 240 V 8.4 14.4 K.W. at 480 V 6.3 12.0 Base Width 24” 60 cm 24” 60 cm Base Depth 16” 41 cm 16” 41 cm

OM-TDB/7

New/Current Models

Pre- Feb . 1995 Models

Opti onal equ ipment av ailable w ith a ny model:

Stan d th at suppor ts the uni t a nd holds a pan in position for filling

1. Lift-off cover

2. Basket insert

3. Fill faucet

4. Manual stirrers

5. Motor driven agi ta tor

Insp ecti o n & U n p acki n g

OM-TDB/7

The unit will arrive in a heavy shipping carton and will be attach ed to a skid. Immediately upon receipt, inspect the carton carefully for exterior damage.

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 WA LLS OF THE CARTON.

Carefully cut the polyester straps around the ca rton and detach the sides of the box from t he skid. Pull the carton up off the unit.

Thoroughly inspect the unit for concealed damage. Report any shi ppin g damage or i ncorrect shipments to t he delivery agent.

Writ e down the model number, serial nu m ber, and installation date, and retain this information for future reference. Space for th ese entries i s prov ided a t the top of the Service Log at the back of this manual. Keep this manual on file and available for operators to use.

CAUTION T HIS UNIT WEIGHS 140 TO 163 LB. (64 TO 74 KG). INSTALLER SHOULD OBTAIN HELP AS NEEDED TO LIFT T HIS WEIGHT SAFELY.

When in sta llation is to begin, ca refu lly cu t the stra ps which hold the unit on the skid. Lift the unit straight up off the skid. Ex amine packin g m aterials to be su re loose parts are not discarded wi th th e m aterials.

Attach the tilt handle (normally shipped inside the kettle) by carefully threading it into the socket on the trunnion support. Be careful to avoid cross-th rea din g fin e socket th rea ds.

The TDB/7 i s shipped from the factory strapped on a

pallet. The tilt handle is inside the kettle.

OM-TDB/7

Installation

The Groen Kettle is provided w ith complete internal wiring. It is ready for immediate connection. A wiring diagram is pr ovided in th is manual and on the inside of t he control h ousing service panel. Any mechanical or electrical changes must be approved in by Gr oen’s Food Service En gin eering Department.

WARNING INSTALLATION OF THE KETTLE MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY. IMPROPER INSTALLATION CAN RESULT IN INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.

The completed unit has been oper ated at th e factory to test all controls and heater elements.

1. Set the kettle in place a nd level it. The base should be securely fastened to a t able or w ork surface. Four 3/8”-16 N .C. threaded coupl ings are provided in th e base of u nit. In sta llation under a vent ilation hood is recommended.

2. Provide electrical pow er a s specified on the elect rical in forma tion plate attached to th e equipmen t. O bserv e loca l codes a nd/or The National Electrical C ode in accordance w ith ANSI/NFPA 70 - (current edition).

The equipm ent is shipped ready for three phase

3. operation. Refer to the wir in g diag ra m for sin gle phase operation.

Bri nging the electrical service throu gh the

entran ce at the rea r of the su pport housin g, making a watertight connection with the incoming lines. (A BX connection is not recommended.)

DANGER ELECTRICALLY GROUND THE UNIT AT THE TERMINAL PROVIDED. FAILURE TO GROUND UNIT COULD RESULT IN ELECTROCUTION AND DEATH.

Confirm that the jacket water level is above

5. mid point of sight glass (new models) or between th e m arks on th e gauge gla ss (old models). If the level is low, follow the instructions under “Jacket Filling and Water Treatment” in the “Maintenance” section of the manual.

The open en d of the elbow on the ou tlet of

6. the safety valv e m ust be directed dow nward on old models. If it is n ot, turn th e elbow to the correct position . On new models the safet y val ve points down.

Any mechanical or electrical change must be

7. approved by the Gr oen Food Service Engineering Depart m ent.

TDB/7 ELECTRICA L SPECIFICATIONS

20 QUARTS 40 QUARTS

VOLTAGE PHASE KW AMPS KW AMPS

208 1 6.3 31 10.8 52 208 3 6.3 18 10.8 30 240 1 8.4 35 14.4 60 240 3 8.4 20 14.4 35 480 1 6.3 13 12.0 25 480 3 6.3 8 12.0 15 400 3 7.8 11.2 13.2 19

TDB/7 SUPPLY WIRE R EQUIREMENTS

Copper only, THHN ( 90°C)

20 QUARTS 40 QUARTS

VOLTAGE PHASE AWG mm AWG mm

208 1

240 1

480 1

400 3 — 1.8 —

12——

3.0

—

1414——10

—

3.5

—

2.5

OM-TDB/7

Initial Start-Up

IMPORTANT: BE SURE ALL OPERATORS READ, UNDERST AND AND FOLLOW THE OPERATING INSTRUCTIONS, CAUTIONS, AND SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL.

Now that the kettle ha s been installed, you should test it to en sure th at the unit is operating correctly.

1. Remove a ll literature and packing materials from i nside an d outside of th e unit.

2. Turn on th e electrical serv ice to the unit.

3. Pour 1-2 quarts of water into the kettle.

4. Following “To Start Kettle” instructions in the “Operation” section of this manual, begin heatin g th e water at th e highest th ermost at setting. The heating indicator light should come on immediately, an d heating shoul d continue until the water boils.

5. To shut down th e unit, turn th e thermostat dial to “OFF”.

WARNING

AVOID ALL DIRECT CONTACT WITH HOT SURFACES. DIRECT SKIN CONTACT COULD RESULT IN SEVER E BURNS.

AVOID ALL DIRECT CONTACT WITH HOT FOOD OR WATER IN THE KETTLE. DIRECT CONTACT COULD RESULT IN SEVERE BURNS.

If the unit fun ctions as described above, it is rea dy for u se. If th e unit does not function as in ten ded, contact y our local Gr oen Certified Service Agency .

A simple turn of the thermostat controls the Groen TBD/7 Kettle

OM-TDB/7

The operator controls kettle hea ting with the thermosta t dial. The dia l tur ns heat in g elemen t elect ric power on or off and sets the operatin g temperatu re of the k ettle.

Operation

2. Check th e pressu re gauge. If t he gauge

3. Turn on th e electrical power to the u nit.

4. Turn the therm osta t dial to the desired

To Transfer Product or Empt y Kettle:

The kettle is designed and manufactured to be tilted in a controlled manner. Grasp the insulated plastic ball firmly. Maintain a firm grip on handle when tilting, w hile keepin g kettle body in a tilted posit ion and when SLOWLY retu rn in g th e kettle body to an upright position .

(ol d m odels). If the level is too l ow, see “Jacket Filling and Water Treatment” on page 10 of this manual.

does not sh ow 20 to 30 inches of v acuum (t hat is, a rea ding of 20 to 30 below 0), see “Jacket Vacuum” on page 10 of this manual.

setting. The heating indicator light indicates that the kettle is heating, and cycling of the light on and off indicates that the kettle is being held at the set temperature. Once in each cy cle the contactors in the support housing will make a clicking sound. This is normal.

A. To Start Kettle

EVERY DAY ma ke sure that the ja cket

1. water level is above the mid-point of the roun d sigh t glass (new models) or between th e m arks on th e gauge gla ss

On most TDB/7 units the jacket water level is

shown in a sight gla ss, righ t on th e kettle.

WARNING AVOID ALL DIRECT CONTACT WITH HOT SURFACES. DIRECT SKIN CONTACT COULD RESULT IN SEVER E BURNS.

AVOID ALL DIRECT CONTACT WITH HOT FOOD OR WATER IN THE KETTLE. DIRECT CONTACT COULD RESULT IN SEVERE BURNS.

TAKE SPECIAL CARE TO AVOID CONTACT WITH HOT KETTLE BODY OR HOT PRODUCT, WHEN ADDING INGREDIENTS, STIRRING OR TRANSFERRING PRODUCT TO ANOTHER CONTAINER.

CAUTION DO NOT OVERFILL THE KETTLE WHEN COOKING, HOLDING OR CLEANING. KEEP LIQUIDS AT LEAST 2-3” (5-8 cm) BELOW THE KETTLE BODY RIM TO ALLOW CLEARANCE FOR ST IRRING, BOILING PRODUCT AND SAFE TRANSFER.

WARNING

WHEN TILTING KETTLE FOR PRODUCT TRANSFER:

1) WEAR PROTECTIVE OVEN MITT AND PROTECTIVE APRON. USE DEEP CONTAINER TO CONTAIN

2) AND MINIMIZE PRODUCT SPLASHING. PLACE CONTAINER ON STABLE, FLAT

3) SURFACE, AS CLOSE TO KETTLE AS POSSIBLE. STAND TO LEFT OR RIGHT OF KETTLE

4) (DEPENDING ON HANDLE PLACEMENT) WHILE POURING — NOT DIRECTLY IN POUR PATH OF HOT CONTENTS.

5) POUR SLOWLY, MAINTAIN CONTROL OF KETTLE BODY HANDLE AT ALL TIMES, AND RETURN KETTLE BODY TO UPRIGHT POSITION AFTER CONTAINER IS FILLED OR TRANSFER IS COMPLETE. DO NOT OVERFILL CONTAINER. AVOID

6) DIRECT SKIN CONTACT WITH HOT CONTAINER AND ITS CONTENTS.

OM-TDB/7

WARNING AVOID ALL DIRECT CONTACT WITH HOT SURFACES. DIRECT SKIN CONTACT COULD RESULT IN SEVER E BURNS.

AVOID ALL DIRECT CONTACT WITH HOT FOOD OR WATER IN THE KETTLE. DIRECT CONTACT COULD RESULT IN SEVERE BURNS.

When removing cover:

a) Firmly grasp plastic handle b) Lift rea r

(3-5 cm) to allow any steam and water vapor to escape the cook in g vessel. Wait 2- 3 seconds.

c) Tilt cover to 45-60° angle and allow any hot

edge (fa rthest from operator) 1-2”

CAUTION KEEP FLOORS IN FRONT OF THE KETTLE WORK AREA CLEAN AND DRY. IF SPILLS OCCUR, CLEAN AT ONCE TO AVOID SLIPS OR FA LLS.

Common Accessories

Lift Off Cove r

1. As with stock pot cooking, an optional lift off cover can speed up the heating of water and food produ cts. A cover helps ret ain h eat in the cookin g vessel an d redu ces th e amount of heat and humidity released into the kitchen. Use of a cover can reduce some product cook times and help maintain the temperatu re, color an d tex tu re of products being held or simmered for extended periods.

Make sure the plastic ball handle is secure on the li ft off cover befor e using. A LWAYS u se the plastic handle to place or remove cover from t he kettle. Wea r protective oven mit ts and a protective apron.

Lif t the rear edge of the cover first.

condensa te or produ ct to roll off cover back into kettle.

d) Remove cover, ensuring that any remaining

hot condensate or produ ct does n ot drip on operator, fl oor or work surfaces.

e) Place cover on safe, flat, sanitary, out-of-

the-way surface, or return to kettle rim.

When putting the cover on th e kettle, position it on top of kett le rim, with its fl at edge facing the pouring lip.

CAUTION DO NOT TILT KETTLE BODY WI TH COVER IN PLAC E. COVER MA Y SLIDE OFF, CAUSING INJURY TO OPERATOR.

OM-TDB/7

2. Basket Insert An optional k ettle ba sket insert can assi st in cooking water -boiled products inclu din g eggs, pot atoes, vegeta bles, shell fish, pasta and rice. The nylon mesh liner must be used when cooking product smaller than the mesh size of the basket, w hich is approximat ely 1/4” (6 mm). This includes rice and small pasta shapes.

Tips For Use. a) Allow for the water displacement of the

basket and product t o be cooked. This may mean only filling the kettle half full of water. Test the basket and produ ct displacement with the kettle OFF, and with cold water in the kettle.

CAUTION

DO NOT OVERFILL THE KETTLE WHEN COOKING, HOLDING OR CLEANING. KEEP LIQUIDS A MINIMUM OF 2-3” (5-8 cm) BELOW THE KETTLE BODY RIM TO ALLOW CLEARANCE FOR STIRRING, BOILING AND SAFE PRODUCT TRANSFER.

AVOID ALL DIRECT CONTACT WITH HOT FOOD OR WATER IN THE KETTLE. DIRECT CONTACT COULD RESULT IN SEVERE BURNS.

Load bask et on a level, stable wor k surfa ce.

Lift th e loaded basket with both hands. Get

help from an oth er per son if the basket is too heavy for safe handling.

Slowly lower product into kettle.

When removing ba sket with cooked product ,

lift basket straight up, ensuring bottom of basket clea rs the rim a nd pouring lip of the kettle. Wear protective oven mitts and prot ective apron .

Allow hot water to fully drain from product,

before moving ba sket aw ay from t he kettle. Do not rest kettle basket on kettle rim or pouring lip. If ba sket is too hea vy for individual to lift and safely move, get help from ano th er person. Remove product immedia tely from basket into an oth er container, being sure to avoid contact with hot product an d hot bask et or. . .

e) Place ba sket wi th food on stable, fla t

surface, setting it inside a solid steamer or bake pan, to catch any remaining hot water draining from produ ct.

WARNING AVOID ALL DIRECT CONTACT WITH HOT SURFACES. DIRECT SKIN CONTACT COULD RESULT IN SEVER E BURNS.

Sequen ce o f Op er ati o n

The fol low in g “action-r eaction ” outline is prov ided to help the user understand how the equipment works.

When th e opera tor sta rts up the k ettle by tu rn in g the operatin g th ermost at dial from “OFF” t o a desir ed settin g, the ther m osta t switch closes. This lights up the heating indicator light and causes the contactors to close, allow in g power to flow to heating elements. When the tempera tu re of the steam jacket rea ches the value corresponding to the dial setting, the therm osta t swit ch opens. This turn s off t he heating indicator light and causes the contactors to open, stopping the power t o th e heater s. As soon as the thermostat senses that the kettle is cooling below t he set point, th e th ermost at switch closes, the h e ating in dica tor light comes on, the con tactors close, and the heaters come

on again. O n-off cycli ng continues, k eepin g th e kettle at the set temperature This is why th e heating in dicator light cycles on a nd off during norma l operation. Ev ery time th e kettle i s tilted, the tilt cut-off switch in terru pts the power supply to t he heat ers, so th at th e heating element s will not operate whil e not submer ged in th e ja cket water.

If steam pressure greater than 50 PSI is generated in the jacket, the safety valve will open and r elieve t he excess pressu re.

In the event that the jacket water level gets too low a nd the heating elements overheat, th e highlimit control will open and shut off pow er to th e elements until the kettle cools. Setting the operating th ermost at dial to “OFF” shu ts down all control and heating circuits.

Maintenance

NOTICE: C ontact Groen or an aut horized Groen representative when repairs are required.

Periodic Maintenance

A Maintenance & Service Log is provided at the back of this manual with the warranty information. Each time maintenance is perform ed on your G roen kettle, enter the date on which the work w as done, wh at wa s done, and who did it . Keep t his m anual on file and available for operators to use.

Periodic inspection will minimize equipment down time a nd incr ease the efficiency of operation. Th e following points should be checked:

[BY OPERA TOR]

a. Check th e pressure/vacuum ga uge every

day. The gauge shou ld sh ow a vacu um of 20 to 30 inches, when the k ettle is cold. If it does n o t, see “Jacket Vacuum” on page 10.

month. Test the valve with the kettle operating at 15 psi (105 kPa ), by holding the test lev er for at least 5 secon ds. Then release the lever and let the valve snap shut. If the lever does not a ctiva te, or there is no evidence of di scharge, or the val ve leaks, immedia tely discontinue use of the kettle an d contact a qualified Groen service representative.

WARNING

WHEN TESTING, AVOID ANY EXPOSURE TO THE STEAM BLOWING OUT OF THE SAFETY VALVE. DIRECT CONTACT COULD RESULT IN SEVER E BURNS. DISCONNECT ELECTRICAL POWER FROM THE KETTLE BEFORE ATTEMPTING TO GREASE THE TRUNNION BEARINGS.

OM-TDB/7

The pressure gauge should show a vacuum

of 20 t o 30 inches when t he kettle is cold.

b. Also check the jack et water level on a

daily ba sis. It should be a bove mid poin t of rou nd sight glass (new models) or between th e m arks on th e gauge gla ss (ol d m odels). If the level is low, see “Jacket Filling and Water Treatment” on page 14.

[BY SERVICE TECHNICI AN]

c. Electrica l w irin g should be k ept secu rely

connected and in good condition .

d. The inside of t he support housing should

be kept clean .

Test the safety valve at least twice each

At least twice a year, grease the two trunnion bearings. The bearings are located within the kettle support hou sin g. Remove the access panels from th e support h ousing with a screwdriver to gain access to the grease fittings. Use a lithium-based, multipurpose grease. When the access panel s are removed, the m ounting bolts for the trunnion bearings and tilt switch can also be checked for tightness. When fi nished, reassembl e access panels to support housing.

Jacket Vacuum

When th e kettle i s cold, a positive pressure reading or a reading around zero on the pressure/v acuum gauge in dica tes the presence of air in th e ja cket. Air in the jack et slows dow n the heating of the k ettle.

To remove air: a. Start the unit. (See the “Operation”

section of this manual.) (Be sure there is water or produ ct in the kettle when heating).

b. Wh en the pressure/v acu um gauge

reach es a positive pressure read ing of 5 PSI, r elea se the tr apped air and stea m by pulling up or out on the safety valve

OM-TDB/7

lever or ring for about 1 second. R epeat this step, then let the pull ring or valve lever sna p back in to the closed positi on.

Jacket Filling and Water Treatment (For

3A.

units manufactured before July 1, 1992) *

The jacket was charged at th e factory with the proper am ount of treated water. Y ou may need to r estore th e water to its proper level, eit her because w ater w as lost as steam du ring vent in g or beca use treated water was lost by draining.

If you are replacing water lost as steam,

use disti lled water . If you are replacing tr eated water tha t ran out of the jacket, prepare m ore trea ted w ater a s directed in step 4, “Water Treatment Procedu re.”

All ow the k ettle to cool. Turn the elbow

on the safety v alve cou nterclockw ise (to avoid th rea d damage) until the open in g of th e elbow faces u pward.

c. Open th e safety val ve and pour th e

water or treated water in at the elbow until the water level rises to a point between th e m arks on th e gauge gla ss.

CAUTION BEFORE YOU HEAT THE KETTLE FOR

ANY PURPOSE, TURN THE ELBOW CLOCKWISE UNTIL THE OPENING AGAIN FACES DOWNWARD.

e. Air i ntroduced to the jack et du ring the

filling operation m ust be remov ed to obtain efficient hea ting. See “Jacket Vacuum” above.

* Date of manufacture stamped on National Board dat a plate.

Jacket Filling and Water Treatment (For

units manufactured July 1, 1992 to Feb. 6, 1995) *

IMPORTANT: The pressure gau ge m ust rea d 0

PSI or less before you fill jacket with wa ter.

To fill jacket with water:

If you are replacing water lost as steam,

use disti lled water . If you are replacing tr eated water tha t ran out of the jacket, prepare m ore trea ted w ater a s directed in step 4, “Water Treatment Procedu re.”

b. Tilt kettle 90° t o a fu ll pour position . c. Remove fill plug with open-en d wrench or

crescent wrench.

d. Open shutoff valve (turn handle 90° on

ball valve). Use a funnel and add water to jacket.

Check water level in jacket by tilting

kettl e to operating position and vi ewing water ga uge glass.

g. Repeat steps e a nd f until water lev el is

between t he maximum and mi nimu m indication m arks on th e water gauge glass.

h. Close shutoff valve, install fill plug, and

ret urn k ettle to opera ting position.

Follow procedure under “Jacket Va cuum” to remove a ir from k ettle jacket.

* Date of manufacture stamped on National Board dat a plate.

C Jacket Filling and Water Treatment (For

units manufactured after Feb. 6 1995) *

IMPORTANT

Pressure gauge must read 0 PSI or less before you fill jacket wi th wat er.

To fill jacket with water: a. If you are replacing water lost as steam,

use disti lled water . If you are replacing tr eated water tha t ran out of the jacket, prepare m ore trea ted w ater a s directed in step 4, “Water Treatment Procedu re”.

b. Remove fill plug with open-end wrench or

crescent wrench.

c. Open shutoff valve (turn handle 90° on

ball valve). d. Use a funnel and add water to jacket. e. Check water level in jacket, by viewing

water level indicator glass.

Continue to add water until the water

level indicator glass is 3/4 full.

Close shutoff valve, an d install fill plug.

Follo w procedur e in “Jack et Va cuum” to

remove a ir from k ettle jacket.

* Date of manufacture stamped on National Board dat a plate.

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