Piper BERKELEY Series User manual

BERKELEY SERIES HOTPLATES
SINGLE, DOUBLE OR TRIPLE HOTPLATES
Installation and Operating Manual
For service information call 800-544-3057
Please have the following information available before calling. Information can be found
on the identification/certification tag:
•Model Number
•Serial Number
•Date of Purchase
•Part Description and number as shown in parts list
IMPORTANT INFORMATION
READ BEFORE USE
Piper Products, Inc
300 South 84th Avenue
Wausau, WI 54401
Phone: [phone] . FAX: [phone]
This manual contains important safety information concerning the maintenance, use and operation of this product.
Failure to follow these instructions could result in damaging equipment, voiding the warranty, serious injury or even death.

TABLE OF CONTENTS
INTRODUCTION
FREIGHT DAMAGE CLAIMS
ELECTRICAL CONNECTION
ELECTRICAL SPECIFICATIONS
INSTALLATION OF DROP-IN HOTPLATES
DROP-IN HOTPLATE FITTING DIAGRAM
INSTALLATION OF BUILT-IN HOTPLATES
BUILT-IN HOTPLATE FITTING DIAGRAM
INSTALLATION OF PORTABLE HOTPLATES
HOTSPOTS
GLASS SNEEZE GUARDS
USE AND OPERATION OF HOTPLATES
CLEANING INSTRUCTIONS
MAINTENANCE AND REPLACEMENT PARTS
BUILT-IN EXPLODED VIEW
DROP-IN EXPLODED VIEW
CHANGING A QUARTZ LAMP
TROUBLESHOOTING GUIDE
SINGLE HOTPLATE, 120V WIRING DIAGRAM
DOUBLE HOTPLATE, 120V WIRING DIAGRAM
DOUBLE HOTPLATE, 208V/240V WIRING DIAGRAM
DOUBLE HOTPLATE, 208V/240V WITH HOT SPOT WIRING DIAGRAM
DOUBLE HOTPLATE, WITH HEAT LAMP 208V/240V WIRING DIAGRAM
TRIPLE HOTPLATE, 208V/240V WIRING DIAGRAM
WARRANTY
2
2
3
3
6
8
10
10
10
11
12
14
16
17
18
19
20
21
22
23
24
25
26
27
28
1

INTRODUCTION
Congratulations! You have just purchased one of the finest pieces of equipment on the
market today. Before installing or operating your new Piper equipment, you should read
through this manual. This manual should be retained for further reference as it contains
installation and operating instructions, service tips, part lists and warranty information.
For your safety, read and follow all cautions and warnings.
FREIGHT DAMAGE CLAIMS
Your Piper equipment was carefully inspected and packed before leaving our factory. The
transportation company assumes full responsibility for safe delivery of this equipment.
Piper Products cannot assume responsibilities for damage or loss incurred in transit.
Visible damage or loss should be noted on the freight bill and signed by the person
making the delivery.
A freight claim should be filed immediately with the transportation company. If damage is
unnoticed or concealed until equipment is unpacked, notify the transportation company
immediately and tell them you want to file a concealed damage claim. This must be done
within five (5) days after delivery was made. Be sure to retain all packing material and
cartons.
WARNING
Installation of this equipment should be done only by persons qualified or licensed
to install electrical equipment. All electrical and plumbing must meet local, state,
and federal codes.
Plumbing installation must be performed by a qualified plumber.
Adjustments and service work should be performed only by a qualified service
technician. Service is available through Authorized Piper Parts and Service
Distributors throughout the United States. For a complete listing of these call or
write Piper Products, Inc. for the name of the nearest distributor.
This equipment is intended for commercial use only. Not for household use.
Use of other than genuine Piper replacement parts or service work performed by
other than an authorized Piper service agent will void the warranty.
Do not use any corrosive cleaners. Piper only approves soap and water for
cleaning stainless steel.
2

ELECTRICAL CONNECTION
WARNING!!!! DO NOT USE EXTENSION CORDS (VOIDS WARRANTY)
Ground:
The electrical outlet must be provided with an efficient ground, and the voltage and the
frequency of the electrical line matches those indicated on the data plate.
If unsure about the efficiency of the ground, have your electrical circuit
checked by a qualified electrician.
• Carefully remove unit from carton or crate. Remove all loose packing materials
making sure that no small parts or accessories are lost. Inspect the unit for
concealed damage before discarding packing materials.
• Check the name plate for electrical requirements.
• If concealed damage is found refer to section on Freight Damage Claims on
Page 2
ELECTRICAL SPECIFICATIONS
3
Model Options Overall
Length
Overall
Depth
Hot Plate
Sections Volts Phase Watts Amps NEMA # Weight (lbs.)
B14050 None 15.75” 19.69” 1 120 1 550 4.6 5-15P 65
B16050 None 23.62” 19.69” 1 120 1 600 5.0 5-15P 88
B24050 None 31.65” 19.69” 2 120 1 1100 9.2 5-15P 130
B26050 None 47.4” 19.69” 2 120 1 1200 10.0 5-15P 175
B240160 None 55.43” 19.69” 3 208 1 1700 8.2 6-15P 185
B36050 None 71.18” 19.69” 3 208 1 1800 8.7 6-15P 200
B14050-HS Hot Spot 15.75” 19.69” 1 208 1 1975 9.5 6-15P 65
B16050-HS Hot Spot 23.62” 19.69” 1 208 1 2150 10.3 6-15P 88
B24050-HS Hot Spot 31.65” 19.69” 2 208 1 2525 12.1 6-15P 130
B26050-HS Hot Spot 47.4” 19.69” 2 208 1 2750 13.2 6-15P 175
B240160-HS Hot Spot 55.43” 19.69” 3 208 1 3125 15.0 L6-20P 185
B36050-HS Hot Spot 71.18” 19.69” 3 208 1 3350 16.1 L6-20P 200
BUILT-IN SERIES - STANDARD DEPTH
Contact factory for special sizes.

4
Model Options Overall
Length
Overall
Depth
Hot Plate
Sections Volts Phase Watts Amps NEMA # Weight (lbs.)
B17060 None 23.62” 27.56” 1 120 1 850 7.1 5-15P 124
B27060 None 47.4” 27.56” 2 208 1 1700 8.2 6-15P 245
B37060 None 71.18” 27.56” 3 208 1 1800 8.7 6-15P 280
B17060-HS Hot Spot 23.62” 27.56” 1 208 1 2400 11.5 6-15P 124
B27060-HS Hot Spot 47.4” 27.56” 2 208 1 3250 15.6 L6-20P 245
B37060-HS Hot Spot 71.18” 27.56” 3 208 1 4100 19.7 L6-30P 280
BUILT-IN SERIES - EXTRA DEEP
Model Options Overall
Length
Overall
Depth
Hot Plate
Sections Volts Phase Watts Amps NEMA # Weight (lbs.)
D17060 None 26” 30 1 120 1 850 7.1 5-15P 124
D27060 None 49-3/4” 30 2 208 1 1700 8.2 6-15P 245
D37060 None 73-1/2” 30 3 208 1 1800 8.7 6-15P 280
D17060-HS Hot Spot 26” 30 1 208 1 2400 11.5 6-15P 124
D27060-HS Hot Spot 49-3/4” 30 2 208 1 3250 15.6 L6-20P 245
D37060-HS Hot Spot 73-1/2” 30 3 208 1 4100 19.7 L6-30P 280
ND17060-OHD4 Sneeze Guard
w/ Heat Lamp 33-1/2” 30 1 208 1 1225 5.9 6-15P 196
ND27060-OHD4 Sneeze Guard
w/ Heat Lamp 57” 30 2 208 1 2825 13.6 6-15P 336
ND37060-OHD4 Sneeze Guard
w/ Heat Lamp 78-3/8” 30 3 208 1 4050 19.5 L6-30P 385
ND17060-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
33-1/2” 30 1 208 1 2775 13.3 6-15P 196
ND27060-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
57” 30 2 208 1 4375 21.0 L6-30P 336
ND37060-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
78-3/8” 30 3 208 1 6350 30.5 6-50P 385
DROP-IN SERIES - EXTRA DEEP
ELECTRICAL SPECIFICATIONS (cont.)
Contact factory for special sizes.
Contact factory for special sizes.

5
Model Options Overall
Length
Overall
Depth
Hot Plate
Sections Volts Phase Watts Amps NEMA # Weight (lbs.)
D14050 None 18 22 1 120 1 550 4.6 5-15P 65
D16050 None 26 22 1 120 1 600 5.0 5-15P 88
D24050 None 34 22 2 120 1 100 9.2 5-15P 130
D26050 None 49-3/4 22 2 120 1 1200 10.0 5-15P 175
D240160 None 57-7/8 22 3 208 1 1700 8.2 6-15P 185
D36050 None 73-1/2 22 3 208 1 1800 8.7 6-15P 200
D14050-HS Hot Spot 18 22 1 208 1 1975 9.5 6-15P 65
D16050-HS Hot Spot 26 22 1 208 1 2150 10.3 6-15P 88
D24050-HS Hot Spot 34 22 2 208 1 2525 12.1 6-15P 130
D26050-HS Hot Spot 49-3/4 22 2 208 1 2750 13.2 6-15P 175
D240160-HS Hot Spot 57-7/8 22 3 208 1 3125 15.0 L6-20P 185
D36050-HS Hot Spot 73-1/2 22 3 208 1 3350 16.1 L6-20P 200
ND14050-OHD4 Sneeze Guard
w/ Heat Lamp 25-5/8 22 1 208 1 925 4.5 6-15P 110
ND16050-OHD4 Sneeze Guard
w/ Heat Lamp 33-1/2 22 1 208 1 975 4.7 6-15P 140
ND24050-OHD4 Sneeze Guard
w/ Heat Lamp 41-3/8 22 2 208 1 1850 8.9 6-15P 185
ND26050-OHD4 Sneeze Guard
w/ Heat Lamp 57 22 2 208 1 2325 11.2 6-15P 240
ND36050-OHD4 Sneeze Guard
w/ Heat Lamp 78-3/8 22 3 208 1 3300 15.9 L6-20P 275
ND14050-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
25-5/8 22 1 208 1 2350 11.3 L6-20P 110
ND16050-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
33-1/2 22 1 208 1 2525 12.1 L6-20P 140
ND24050-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
41-3/8 22 2 208 1 3275 15.7 L6-20P 185
ND26050-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
57 22 2 208 1 3875 18.6 L6-30P 240
ND36050-OHD4-HS
Hot Spot &
Sneeze Guard
w/ Heat Lamp
78-3/8 22 3 208 1 4850 23.3 L6-30P 275
DROP-IN SERIES - STANDARD DEPTH
ELECTRICAL SPECIFICATIONS (cont.)
Contact factory for special sizes.

INSTALLATION OF DROP-IN HOTPLATES
IMPORTANT: Please ensure that there is a minimum clearance of 6 inches
(150mm) between the bottom of the hotplate and any shelf beneath it. Adequate
ventilation and access is required for service.
1. Follow the dimensions for the correct size opening in the counter surface. Refer to
spec sheet or contact Piper Support
2. Apply a bead of mastic all around the opening so the stainless steel flange will sit
directly onto the mastic to ensure a heat proof and hygienic seal (illustration 1B).
Position the unit directly over the top opening and set squarely in place. Allow
approximately 12 hours for the mastic to cure.
3. Clean excess mastic off after curing using an appropriate solvent.
4. The type of controller supplied can be either left attached to the unit or positioned
remotely from the body of the hotplate. The distance is determined by the length of
the wiring.
5. Before connection, ensure the controls are in the OFF position. The unit should then
be connected to an appropriately protected supply by a QUALIFIED TECHNICIAN.
6

DROP-IN HOTPLATE
FITTING DIAGRAM
Decorative Top
Mastic Seal
Expansion Seal
6mm SCHOTT
Ceran Pyroceramic
Electric
Elements
Insulation
25mm
Bead of Recommended Mastic
7
Illustration 1A
Illustration 1B

INSTALLATION OF BUILT-IN HOTPLATES
IMPORTANT: Please ensure that there is a minimum clearance of 6 inches
(150mm) between the bottom of the hotplate and any shelf beneath it. Adequate
ventilation and access is required for service.
1. Follow the dimensions for the correct size opening in the counter surface. Refer to
spec sheet or contact Piper Support
2. Position the unit from the underside of the counter work surface and ensure that
the hotplate is properly centered. Mark the holes in the adjustable bracket to the
underside of the counter surface. Using the chosen attachment method, i.e. screws
or studs, fix the hotplate in position. Loosen the adjusting screws holding the
brackets to the hotplate body and adjust the hotplate until it is level and flush to the
counter top surface. Tighten the screws/studs.
3. After the hotplate is fit into position, a high temperature, food grade silicone seal
must be applied to the perimeter of the Ceran and counter top to act as a heat proof
and hygienic seal. See illustration 2 for details. Using masking tape, lay strips of
tape around the Ceran glass panel with the edge of the tape to the extreme edge of
the Ceran. Also lay strips of tape to the extreme edge of the counter opening. Trim
the tape so no overlap occurs. Apply a continuous bead of Dow Corning silicone
or similar product into the space between the hotplate and counter using sufficient
silicone to cover the surface (illustration 2B). Use the edge of a flexible plastic card,
scrape off the excess silicone to the level of the masking tape (illustration 2C).
Immediately peel off the masking tape leaving a smooth and neat line of silicone
around the hotplate. Allow the silicone to cure for 12 hours. Clean any excess
silicone off with appropriate solvent after silicone is cured.
4. The type of controller supplied can be either left attached to the unit or positioned
remotely from the bod of the hotplate. The distance is determined by the length of
the wiring.
5. Before connection, ensure the controls are in the OFF position. The unit should
then be connected to an appropriately protected supply by a QUALIFIED
ELECTRICIAN.
8

9
Counter Top
Masking Tape
Smooth down
using plastic card
for instance
Hotplate
Illustration 2A
Illustration 2B
Illustration 2C

10
6mm Ceran
Bonded to case
3-5mm Expansion Seal
Counter Top
Wood/Ply Base
Adjustable Bracket
Level Adjuster/
Fixing Bracket
Access Panel
Fully Insulated
Heater Box
70mm
BUILT-IN HOTPLATE FITTING DIAGRAM
6mm Ceran
Bonded to case
3-5mm Expansion Seal
Stainless Steel
Counter Top
Stud Welded to
Underside of Top
by Fabricator
Adjustable Bracket
Level Adjuster/
Fixing Bracket
Access Panel
Fully Insulated
Heater Box
70mm
STAINLESS STEEL COUNTER TOP
TILED, LAMINATE, OR STONE COUNTER TOP

11
A + 8mm
B + 8mm
Example Hot Plate
Cutout Size. See
Technical Sheet for
Details.
A
B
Example Built-In
Hot Plate Size. See
Technical Sheet for
Details.

INSTALLATION OF PORTABLE HOTPLATES
WHEN CONNECTING PORTABLE HOTPLATES TO AN ELECTRICAL SUPPLY THEY
MUST CONFORM TO THE ELECTRICAL REGULATIONS OF THAT LOCATION
As these models are portable, no special installation requirements are needed apart
from the electrical details above. When setting it in place, be sure the unit is positioned
on a stable and heatproof surface and at a height suitable for safe operation. Before
connecting to a power supply be sure that all controllers are in the off position.
HOTSPOTS
All models can, if desired, incorporate a hot spot which is an 1800 watt element that
can be used for light cooking or reheating of food. When fitted, the hotspots will have a
separate controller which is independently controlled from the hotplate surface.
WARNING: BE AWARE THESE AREAS ARE VERY HOT EVEN AFTER THE UNIT
HAS BEEN SWITCHED OFF!
GLASS SNEEZE GUARDS
PLEASE BE EXTREMELY CAREFUL WHEN UNPACKING AND TRANSPORTING THE
SNEEZE GUARD GLASS.
The assembly and fitting of the glass sneeze guards must be carried out by a minimum
of 2 personnel.
We recommend the glass only be installed once the hotplate unit has been fitted and
set in place and not transported fitted in the gantry as flexing and breakage may occur.
Do not place any excess weight on the top surface of the guards that will put undue
strain on the supports and glass.
12

USE AND OPERATION OF HOTPLATES
Each hotplate surface is individually controlled by a simmerstat/infinite controller.
Preheat the unit by selecting full power for 20 minutes prior to placing any containers
of food on the hotplate. This will bring the temperature of the hotplate to approximately
250˚F (120˚C).
The temperature of the hotplate can then be preset to the required temperature. DO
NOT LEAVE ON FULL POWER. The full setting is for rapid heating of the hotplate at
the start of service and is not meant for normal use.
Dishes: Shallow depth pans are recommended (approximately 50mm or 2” deep).
They should be heatproof dishes and good conductors of heat with a smooth flat base
free from rough finishes which can scratch and damage the Ceran surface. Bain Marie
/ Steam table pans are not suitable for this purpose. Some suggestions are porcelain,
earthenware, stainless steel, enameled heat proof glass, etc.
Food: Food that is being displayed should have been adequately heated to the
required temperature of approximately 185˚F or 85˚C prior to being placed on the
preheated hotplate. Hotplates are for maintaining the food temperature only and not for
heating the food (see hotspots). Most applications will require a high heat setting (not
maximum) to adequately keep the product hot. However, each user needs to establish
the ideal settings to suit their operation and product.
Hotspots: Where fitted, hotspots can bring the products to the required temperature
quickly and can also include light cooking and are specific for that application.
Length of Display Time: This will depend on the food product being displayed.
However most products should be used within a reasonable period and during this
time the server should ensure the product is stirred for even heating and also to
avoid overheated areas and scorching etc. and also to maintain the product for good
presentation.
Hotplates with Overhead Heated Gantry: This will allow for the food to be heated
from above, however the same advice applies for even heating and presentation of the
product.
Quartz Heat Lamps: The quartz heat lights fitted over the hotplates are designed to
maintain the temperature of the surface of the food. It is controlled by an electronic
dimmer switch which provides 3 stage variable adjustment of the heat output. The
optimum setting will depend on the food being displayed and the distance of the food
to the underside of the quartz. Experimentation is the best way to find the correct
setting.
13

CLEANING INSTRUCTIONS
PYROCERAMIC HOTPLATES
STOVE ENAMELLED BODY AND OHD
STAINLESS STEEL GANTRIES
CERAMIC HOTPLATES
The following cleaners were successfully tested and approved by Schott for Ceran
cooking surfaces.
• Elco Cook Top Cleaning Crème
• Golden Ventures Cerama Bryte
• Hopes Cooktop Cleaning Crème
To keep your surface looking good and easy to use for a long time to come, follow
these hints and tips:
• When the unit is switched off and the surface has cooled, remove any burnt on de-
posits or spilled food from your Ceran surface with a suitable metal razor - free with
your purchase (similar to a paint scraper). Hold the scraper at approximately a 30
degree angle to the cook top surface.
• Apply a few dabs of an approved cleaner (see above) and work the cleaner over the
entire surface with a paper towel as if cleaning a window.
• As a final step, clean well with a damp cloth, removing all residue and finally wipe
clean with a dry paper towel.
Tip: Clean your Ceran regularly, at least at the end of each operation.
Important: If any sugar or food containing sugar (preserves, ketchup,
tomato sauce, etc.), a plastic item, or kitchen foil is accidentally allowed
to melt on the hot spot surface of your Ceran, remove the melted material
IMMEDIATELY WITH A METAL SCRAPER.
For your safety, please wear a glove pot holder while using the scraper
14

CLEANING (cont.)
DO NOT use abrasive sponges or scourers of any type. Corrosive
cleaners such as oven sprays and stain removers and bleaches should
also NOT BE USED.
EPOXY COATED BODY (PORTABLE UNITS)
• Use a damp cloth (mildly soapy) to remove any residue stains or a recommended
stove enamel cleaner.
• DO NOT USE ABRASIVE CLEANERS
QUARTZ LIGHT GANTRY
• To clean the stainless steel gantry use a recommended stainless steel cleaner or a
damp cloth.
• DO NOT TOUCH THE QUARTZ LIGHT BULB.
• Wipe over with a dry cloth to finish off.
15

16
MAINTENANCE AND REPLACEMENT PARTS
WARNING: SWITCH UNIT OFF AND DISCONNECT FROM THE
ELECTRICAL SUPPLY BEFORE CARRYING OUT ANY OF THE
FOLLOWING. IT IS HIGHLY RECOMMENDED THAT ALL PROCEDURES
BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
Ceran GLASS AND HEATER MAT
• Carefully remove the broken glass and heater mat WHILE WEARING PROTECTIVE
GLOVES AND EYE PROTECTION, being certain to remove all glass remnants
from the edges and also removing any excess mastic leaving a clean area for re-
bonding. Disconnect the heater mat wiring from the controller noting the terminal
positions and pull through the conduit.
• Refit the new Ceran and heater mat and feed the wiring back through the conduit to
the control box. Reconnect the wires to their original positions. (If you are unable to
access from the top of the hotplate, remove the base plate and insulation and carry
out the replacement from below).
• Refit the Ceran glass by running a bead of Dow Corning 781 or comparable mastic
to the underside of edge of Ceran (built-in) or fill in the area between the glass and
flange (drop-in). Carefully set the glass and heater mat on the top surface of the
hotplate making sure the surface is flat and level. (In the case of a drop-in, masking
tape is needed on the edges of the glass and stainless flange to ensure a neat
finish.) Allow approximately 12 hours to cure.
• Refit the hotplate to the counter worktop by following the procedures for either
built-in or drop-in model. After re-installation of the hotplate in the counter, allow the
mastic to cure for about 12 hours, then switch the unit on and test it.
HEATER MAT
• To gain access you will need to remove the access panel from the underside of the
main body and carefully remove the insulation board from the interior.
• The mat will be stuck to the underside of the Ceran glass by a suitable adhesive.
Disconnect the wiring noting their positions, lift up one corner and carefully peel off
the mat. Remove as best as you can any excess adhesive prior to replacing with a
new mat.
• Peel off the backing of new mat (if self-adhesive type) and starting from one
end smooth the mat across the glass TAKING CARE NOT TO LEAVE ANY AIR
POCKETS.
• Reconnect the wiring. Replace the insulation and access panel and test.

17
MAINTENANCE AND REPLACEMENT PARTS (cont.)
WARNING: SWITCH UNIT OFF AND DISCONNECT FROM THE
ELECTRICAL SUPPLY BEFORE CARRYING OUT ANY OF THE
FOLLOWING. IT IS HIGHLY RECOMMENDED THAT ALL PROCEDURES
BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN
TOGGLE/ROCKER/PUSH BUTTON ON/OFF SWITCH
• Note position of wires and pull off connections.
• Remove locknut on switch and remove from control panel.
• Re-fit new switch/toggle/rocker and re-connect
NEON INDICATOR LAMP
• Pull off wires from spade terminals.
• Remove retaining nut and remove indicator lamp.
• Replace with new lamp and reconnect.
SIMMERSTAT/INFINITE CONTROL
• Remove indicator knob.
• Remove retaining nut and washer.
• Remove spade terminals (noting their positions).
• Remove simmerstat and replace with new, reversing the above procedure.
DIMMER SWITCH
Follow same procedure as above.
HOT SPOT
• Note position of wiring.
• Remove connections.
• Remove retaining bracket and replace with new Hot Spot.
• Replace wiring and bracket.

BUILT-IN EXPLODED VIEW
18
6mm Thick Schott Pyroceramic Glass
Self Adhesive Heater Mat.
Wattage as per O&M Manual
Monolux Heat Resistant Board
Adjustable Angle Supports and Sides
304 Grade Stainless Steel Case
Stainless Steel Removable Base Plate
Controller (3 switch shown)
Comes with 2 meters of cable