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OPERATOR MANUAL
IMPORTANT INFORMATION, KEEP FOR OPERATOR
This manual provides information for:
MODEL NEB/1
STEAM BOILERS
· Electrically Heated
· 24, 36 or 48 Kilowatts
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE.
READ, UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND
WARNINGS CONTAINED IN THIS MANUAL.
WARNING / FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
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 dam-
age. 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.
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.
PART NUMBER 148669 REV E (08/16)
1055 Mendell Davis Drive
Jackson, MS 39272
888-994-7636, fax 888-864-7636
unifiedbrands.net
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Table of Contents
Related Manuals for Groen NEB/1
Summary of Contents for Groen NEB/1
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Page 1: Steam Boilers
OPERATOR MANUAL IMPORTANT INFORMATION, KEEP FOR OPERATOR This manual provides information for: MODEL NEB/1 STEAM BOILERS · Electrically Heated · 24, 36 or 48 Kilowatts THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE. READ, UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND WARNINGS CONTAINED IN THIS MANUAL. -
Page 2: Important Operator Warnings
CONTAINS POTASSIUM HYDROXIDE OR SODIUM HYDROXIDE OR THAT IS HIGHLY ALKALINE. WARNING: USE OF REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR AUTHORIZED DISTRIBUTORS VOIDS ALL WARRANTIES AND CAN CAUSE BODILY INJURY TO THE OPERATOR AND DAMAGE THE EQUIPMENT. SERVICE PERFORMED BY OTHER THAN FACTORY-AUTHORIZED PERSONNEL WILL VOID ALL WARRANTIES. -
Page 3: Table Of Contents
Northbrook, Illinois 60062 NATIONAL FIRE PROTECTION ASSOCIATION 60 Battery March park Quincy, Massachusetts 02269 NFPA/70 The National Electrical Code NOTE: A RETROFIT KIT IS AVAILABLE FROM THE FACTORY FOR THOSE AREAS IN WHICH COMPLIANCE WITH CSD-1 STANDARDS IS REQUIRED. OM-NEB/1... -
Page 4: Equipment Description
Equipment Description The Groen NEB/1 steam boiler generates low pressure steam for use with HyPlus cabinet-mounted steamers and steam jacketed kettles. The boiler is housed in a stainless steel cabinet. Various combinations of steam operated kettles and steamers can be mounted on the top. The boiler is small enough to fit in a 24-1/8”... -
Page 5: Water Quality & Treatment
4. If you notice a slowdown in steam production, have the unit checked for scale build- up. Heavy scale reduces the unit’s ability to boil water and can even cause heating elements in the steam generator to overheat and burn out. OM-NEB/1... -
Page 6: Installation
Left Side — Four inches MECHANICAL CHANGE IN THE UNIT Rear — Six inches WITHOUT PRIOR GROEN APPROVAL WILL VOID ALL WARRANTIES. *In order to service the unit properly, access with at least 24 inches clearance is needed on the right side. -
Page 7: Installation
60 PSI (420 kPa), a pressure regulator is required. A strainer screen at the IMPROPER DRAIN CONNECTION connection is also recommended, to trap any debris before it can enter the system. WILL VOID WARRANTY. c. The NEB/1 boiler uses water at the maximum rate per hour shown below. MAXIMUM WATER CONSUMPTION Unit Gallons/Hour... -
Page 8: Initial Start-Up
6. To shut the unit down, turn the ON/OFF switch to OFF. When it has cooled to approximately 130°F, the unit will automatically drain. If the unit functions as described above, it is ready for use. If it does not, contact your authorized Groen Service Agent. OM-NEB/1... -
Page 9: Operation
12 PSI (83 kPa). To shut down the unit, turn the ON/OFF switch to “OFF.” The unit will drain automatically after it has cooled to about 130°F. See OM-HY-6CAV for steamer cavity operation and/or OM-TD for kettle operation information. OM-NEB/1... -
Page 10: Sequence Of Operation
When the “ON/OFF” switch is turned “OFF,” a thermostatic switch mounted on the boiler shell will keep the drain valve closed until the temperature drops to approximately 130°F (77°C). Then the switch opens, and water drains from the boiler. A vacuum breaker allows air to enter the boiler. OM-NEB/1... -
Page 11: Cleaning
The actual time between these USE SAFETY GLASSES AND RUBBER scheduled cleanings depends on the water quality and hours of operation. Minimally, GLOVES AS RECOMMENDED BY DE-LIMING Groen recommends cleaning the boiler at least once each month. AGENT MANUFACTURER. Suggested Tools CAUTION 1/2”... -
Page 12: Cleaning
If steamers are not present, proceed to step 25. 23. Set steamer timers for 10 minutes. 24. When steamer signal sounds, turn timers off. 25. If the boiler is not to be used, it may be turned off. It is ready for normal operation. OM-NEB/1... -
Page 13: Maintenance
When pressure reaches five PSI on the gauge, lift the lever to vent steam, then release it, allowing it to snap back into place. Component Replacement NEB/1 boilers are easy to service. The design is simple, and controls are readily accessible. Before replacing any part, COMPLETELY SHUT OFF ELECTRICAL POWER TO THE UNIT. -
Page 14: Troubleshooting
Are contactors defective? (X) Service Rep Only b. Is the heater burned out? Check voltage and amperage on each line at each heater. (X) c. Is the contactor control relay defective? Note: Relay controls all contactor coils. (X) OM-NEB/1... - Page 15 Is the thermostatic switch defective? Check for loose electrical immediately when turned off. Service Rep Only connections on switch. (X) Boiler does not drain. User a. Is the thermostatic switch defective? b. Is the solenoid drain valve defective? c. Are the solenoid drain valve or hoses blocked? OM-NEB/1...
- Page 16 Parts List CNEB/1 OM-NEB/1...
- Page 17 SIGHT GLASS 126031 HARNESS, ELEMENT HAR- 174988 THERMOSTAT 077985 NESS, SINGLE PHASE RELAY, CUTOUT 119814 LABEL, FIELD WIRING, 175011 RELAY, DPDT 24VAC 121733 SINGLE PHASE GASKET, ELEMENT 003494 ELEMENT 208V 12KW 148593 ELEMENT 240V 12KW 148594 ELEMENT 480V 12KW 148595 OM-NEB/1...
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Page 18: Electrical Schematic
Electrical Schematic OM-NEB/1... - Page 19 Electrical Schematic - Single Phase OM-NEB/1...
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Page 20: Service Log
Service Log Model No: Purchased From: Serial No: Location: Date Purchased: Date Installed: Purchase Order No: For Service Call: Date Maintenance Performed Performed By OM-NEB/1... - Page 21 1055 Mendell Davis Drive • Jackson MS 39272 888-994-7636 • 601-372-3903 • Fax 888-864-7636 unifiedbrands.net PART NUMBER 148669 REV E (08/16) © 2016 Unified Brands. All Rights Reserved. Unified Brands is a wholly-owned subsidiary of Dover Corporation.