CARTER-HOFFMANN PHB495 Owner's manual

AIR SCREEN REFRIGERATOR
MODELS PHB495 & PHB15
OWNER / OPERATOR’S MANUAL
Part Number: 18400-3028D Printed in the United States of America 010614KBA
MANUFACTURED BY:
CARTER-HOFFMANN
1551 McCormick Avenue
Mundelein, IL 60060 U.S.A.
Phone: [phone]
Fax: [phone]
Toll Free: 800-323-9793
Email: [email protected]
GENERAL INFORMATION
 This appliance is intended for use in commercial
establishments, where all operators are familiar with
the appliance use, limitations and associated haz-
ards.
 Operating instructions and warnings must be read
and understood by all operators and users.
 This appliance is intended for use to holding pre-
cooked foods for human consumption. No other use
is recommended or authorized by the manufacturer
or its agents.
 Cleanliness of this appliance is essential to good
sanitation. Read and follow all included cleaning
instructions and schedules to ensure the safety of
the food product.
 All included trouble shooting guides, component
views and parts lists are included for general refer-
ence, and are intended for use by qualified service
personnel.
 Knowledge of proper installation, operation and
maintenance procedures is essential to ensure the
safe operation of this oven.
SERVICE / SAFETY
 Always have dry hands prior to using the piece of
equipment.
 Turn OFF the unit (not all units have power switch-
es) anytime the cabinet is not in use.
 If an electrical shock is felt when touching the cabi-
net, disconnect the power immediately and call
Carter-Hoffmann Technical Service for assistance.
 If the power cord is frayed or the plug damaged, DO
NOT plug into the electrical power receptacle. If it is
already plugged in, turn off the main circuit breaker,
usually located in the building’s breaker box, then
disconnect the plug.
 Disconnect the power cord before attempting any
repairs to the cabinet.
 Repairs to this unit must be by qualified personnel.
 DO NOT SPRAY WITH WATER OR CLEANING
SOLUTIONS, or submerge the appliance. Compo-
nents and wiring present a high shock hazard when
wet.
 Disconnect power when cleaning cabinet.
 Both the interior and exterior surfaces of this appli-
ance can be hot to the touch and may cause burns.
CAUTION: EQUIPMENT ELECTRICAL
DAMAGE
DO NOT plug in or use this appliance until
all Installation Instructions are read and followed.
Damage to the appliance may occur if these in-
structions are not followed.
This manual is considered to be a permanent part
of this appliance.
This manual must remain with the appliance if it is
sold or moved to another location.
PHB495

2
UNPACKING AND INSTALLATION
WARNING:
Risk of personal injury
Installation procedures must
be performed by a qualified technician
with full knowledge of all applicable
electrical codes. Failure can result in
personal injury and property damage.
CAUTION:
Electrical Shock Hazard
The ground prong of the power cord is
part of a system designed to protect
you from electric shock in the event of
internal damage. DO NOT cut off the
large round ground prong or twist a
blade to fit an existing receptacle.
IMPORTANT:
Power cord is 10' long.
If necessary, contact a li-
censed electrician to install
an appropriate 15 amp electrical cir-
cuit with NEMA 5-15R receptacle. DO
NOT use an extension cord.
IMPORTANT:
Damage to unit due to being
connected to the wrong volt-
age or phase is NOT cov-
ered by warranty.
GROUNDING INSTRUCTIONS
This appliance is equipped with a cord having a grounding wire
with a grounding plug which must be plugged into an outlet that is
properly installed and grounded. In the event of an electrical short
circuit, grounding reduces the risk of electric shock by providing an
escape wire for the electrical current.
WARNING-Improper use of the grounding can result in a risk
of electric shock. Consult a qualified electrician or service agent if
the grounding instructions are not completely understood, or if
doubt exists as to whether the appliance is properly grounded.
CAUTION: Electric Shock Hazard
All servicing requiring access to non-insulated components must be performed by qualified service
personnel. Do not open any access panels which require the use of tools. Failure to heed this warn-
ing can result in electrical shock. Disconnect this appliance from electrical power before performing
any maintenance or servicing.
WARNING: Injury Hazard
All installation procedures must be performed by qualified personnel with full knowledge of all applica-
ble electrical codes. Failure could result in property damage and personal injury.
WARNING Electric Shock Hazard
Appliance must be plugged into a properly grounded receptacle to prevent possible shock hazard.
Electrical shock will cause death or serious Injury.
Unpack the cart and any accessories includeed. Ensure that all
packing materials and protective plastic has been removed from the
unit. Inspect all components for completeness and condition.
NOTE: DO NOT discard the carton or other packing materials until
you have inspected the appliance for hidden damage and tested it
for proper operation. Refer to SHIPPING DAMAGE CLAIM PROCE-
DURE on PAGE 7 of this manual.
Appliance should be thoroughly cleaned before use. See CLEANING
INSTRUCTIONS, page 3.
Plug the cabinet into a properly grounded NEMA 5-20R electrical
receptacle. DO NOT MODIFY CORD PLUG.
Before using, familiarize yourself with the
heater controls. Read entire manual before
operating this cart.
PHB495 PHB15
13.5 running amps
11 running amps

3
CLEANING
Turn the main power switch OFF and unplug the cabinet to before clean-
ing. DO NOT spray or splash water on the electrical components, con-
trol panel, timer or wiring.
1. Racks or shelves are easily removed without tools for cleaning, Simply
lift up and pull out. The tray racks may be hand washed or run through
an automatic washer.
2. To clean stainless steel surfaces use only cleansers, detergents, de-
greasers, or sanitizers that are certified to be "chloride-free" and
"phosphate-free," and cleansers, degreasers, or sanitizers only in the
recommended concentrations. DO NOT exceed recommended con-
centrations or mixing ratios. After cleaning and sanitizing, rinse all
exposed surfaces thoroughly with large amounts of clean, clear water.
Wipe off any standing liquid or residue from all surfaces, corners and
rear edges.
3. Vinyl trim should be washed with a chlorine-free detergent and water.
Rinse thoroughly with clear water and allow to dry. Never use abra-
sive cleaners, waxes, car polish, or substances containing strong aro-
matic solvents or alcohol. Use of direct steam / hot water cleaning
at temperatures above 190°F may result in “bubbling” or loosening of
vinyl adhesive.
4. After all parts are dry, reinstall them and then plug the cabinet back
into electrical source.
WARNING: ELECTRIC
SHOCK HAZARD
Unplug the unit from
electric power before
performing cleaning or maintenance.
WARNING: ELECTRIC
SHOCK HAZARD
DO NOT spray or splash
water on the control panel
or wiring.
IMPORTANT: Cleansers, detergents, degreasers, sanitizers or bleaching agents that contain chlorides or
phosphates will cause permanent damage to stainless steel products. This damage appears as pits,
eruptions, voids, small holes, cracks, severe discolorations or dulling of the metal finish. Water with a high
chlorine content can also damage stainless steel. If unsure of your water quality, we recommend you have it
tested. THIS DAMAGE IS PERMANENT, COSTLY TO REPAIR, AND IS NOT COVERED BY WARRANTY.
PURPOSE FREQUENCY CLEANING AGENT METHOD OF APPLICATION
Routine
cleaning Daily Soap, ammonia, detergent and water Swab with cloth. Rinse with clear water, wipe dry.
Smears
and
fingerprints
As needed Stainless steel cleaner,
similar products Rub with cloth as directed on package. Rub in direction of grain of stainless steel.
Do not use on vinyl trim or control panel.
Stubborn spots
and
stains
Daily or as needed Any chloride-free or
phosphate-free
cleanser
Apply with damp sponge or cloth.
Rub in direction of grain. Rinse thoroughly.
Do not use on vinyl trim or control panel.
Hard
water spots Daily or as needed Vinegar Swab with cloth. Rinse with clear water, wipe dry.
RECOMMENDED "TIPS" FOR CLEANING STAINLESS STEEL
CAUTION: CART
DAMAGE
Do not tip cart onto the
doors to drain excess
water. Permanent damage to the
doors and hinges will result. Use a
clean dry cloth to mop any excess
water inside cabinet after cleaning.

The Air Screen Refrigerator is designed for use with the door open when un-
loading during meal or tray assembly operations lasting up to two hours. Only
product that has been pre-chilled should be placed in the cabinet. Placing
warm product into the cabinet will elevate the cabinet air temperature above
40°F (4°C). This will have a direct effect on optimum product serving temper-
atures.
Due to various conditions such as extremely high kitchen temperatures, high
frequency of tray activity breaking the air curtain and excessively long opera-
tions, the door may need to be closed so the unit can recover to proper oper-
ating temperature.
1. Pre-chill empty cabinet with the door closed for approximately 40 minutes.
Always keep the door closed, except when actually loading or unloading
the cabinet. Do not load the cabinet until the proper operating temperature
has been reached (34°-40°F).
2. Load the cabinet from the bottom to the top. While the side-to-side air
flow of the Air Screen Refrigerator will function well when trays are partially
pulled out, the best position for the trays is to be pushed all the way in dur-
ing unloading. After loading, close the door and allow the inside air temper-
ature to recover.
3. If necessary, unplug and move cabinet to serving area. Plug cabinet back
in immediately upon arrival.
4. Unload the cabinet from the top down.
5. Close the door during slow periods to extend the effective temperature
maintenance time.
Remember: the refrigerator or freezer must be at proper
temperature before the door is opened.
The cabinet will not lower food temperatures with the door open.
The cabinet is equipped with an automatic condensate evaporator. To pre-
vent water spills, leave the unit plugged in, with the door closed for at least 90
minutes after use.
DAILY OPERATION
4
PHB495
Door switch activates air
screen when door is opened
CONTROLLER OPERATION
Manual Defrost Start Key
Press and hold for two seconds
to enable defrost. NOTE: Cabi-
net temperature must be at 40°F
or lower for manual defrost to
operate. During the defrost
cycle, melting snowflake will
illuminate on the controller here.
Set Key
Press to display temperature set
point
Up Arrow Key
Press to increase tempera-
ture set point (1°increments)
Down Arrow Key
Press to decrease tempera-
ture set point (1°increments)
To Lock or Unlock the Controller: Press and hold
both Arrow Keys at the same time.
Snowflake symbol will illuminate here when compressor is ON
To change the temperature scale (°F or °C), please contact Carter-Hoffmann at [e-mail] or 847.362.5500.

5
PHB495 WIRING DIAGRAM & PARTS LIST
120v, 11 running amps
Standard Electric
Part Number Description
18614-0051 Accumulator 5/8 Suct.
16002-5190 Push handle assembly
18614-0245 Blade, fan evaporator
18602-0031 Boot, toggle switch
29034-0050 Breaker strip, grey
18301-6214 Swivel caster, no brake
18301-6215 Swivel caster with brake
18614-0276 Evaporator coil, #5598
18612-5050 Condensing unit R134a 1/2 M
18614-0095 Condensate evaporator 120v
18605-0017 Cord with plug 14/3 HSJO, 5-20P
16503-2999 Evaporator cover
29038-4053 Tempered glass door
18614-0062 Filter drier C-032-S
29038-4129 Gasket for glass door
16501-6807 Front grill
18303-0080 SST Flush pull handle
16090-2525 Door hinges
Part Number Description
18302-0050 Magnetic door latch, chrome offset
18302-0048 Magnetic door latch, locking, chrome offset
18614-0242 Evaporator motor, 120v
16502-5284 Side vent panel
18302-0054 Door strike, SST #R25
18602-0013 Push button door switch
18602-0030 Toggle switch, 30A
18616-0031 Digital controller
18616-0013 Digital controller probe
18614-0091 Expansion valve, EFJ-1/2-C 3x4 SAE 30”
16503-5504 Door hold open retainer bracket
18305-0076 Rubber door stop bumper
18141-0030 Mounting rivet for 18505-0076 bumper
16001-1621 Bottom left pan slide duct
16001-1622 Top left pan slide duct
16001-1623 Bottom right pan slide duct
16001-1624 Top right pan slide duct
18614-0028 HGBP Solenoid, 120v
18612-0147 Pad Heater

6
PHB15 WIRING DIAGRAM & PARTS LIST
Part Number Description
18614-0051 Accumulator 5/8 Suct.
16002-5194 Push handle assembly
18614-0282 Blade, fan evaporator
18602-0031 Boot, toggle switch
29034-0050 Breaker strip, grey
18301-6214 Swivel caster, no brake
18301-6215 Swivel caster with brake
18614-0278 Evaporator coil, #5575
18612-5063 Condensing unit R134a 3/4 HP
18614-0095 Condensate evaporator 120v
18605-0017 Cord with plug 14/3 HSJO, 5-20P
16503-2999 Evaporator cover
29038-4053 Tempered glass door
18614-0063 Filter drier C-052-S
29038-4129 Gasket for glass door
16505-5704 Front grill
18303-0080 SST Flush pull handle
16090-2525 Door hinges
16505-5703 Side vent panel
Part Number Description
18302-0050 Magnetic door latch, chrome offset
18302-0048 Magnetic door latch, locking, chrome offset
18614-0242 Evaporator motor, 120v
18302-0054 Door strike, SST #R25
18602-0013 Push button door switch
18602-0030 Toggle switch, 30A
18616-0031 Digital controller
18616-0013 Digital controller probe
18614-0093 Expansion valve, EFJ-1/2-C 3x4 SAE 30”
16503-5504 Door hold open retainer bracket
18305-0076 Rubber door stop bumper
18141-0030 Mounting rivet for 18305-0076 bumper
16001-1621 Bottom left pan slide duct
16001-1622 Top left pan slide duct
16001-1623 Bottom right pan slide duct
16001-1624 Top right pan slide duct
18614-0028 HGBP Solenoid, 120v
18612-0147 Pad Heater
120v, 13.5 running amps
Standard Electric

7
GENERAL MAINTENANCE INSTRUCTIONS
DOORS
Never tip cart forward or open doors to drain water during or after washing. This can cause serious damage to
the hinges, doors and latches.
CASTERS
Some casters are equipped with Zerk grease fittings so that they may be easily lubricated with a grease gun.
Recommended lubrication is at least once every six months. Lubrication will be required more frequently if carts
are cleaned with a hot water or steam cleaning system. Casters with special bearings are recommended for
frequent cart wash or steam cleaning situations.
HINGES
Your cart doors and hinges have been factory aligned with nylon spacers to assure positive latching and
smooth action. Be sure to replace these washers if the are removed when cleaning doors and hinges. If doors
are removed for cleaning, we recommend that they be put back on the same cart to assure the best possible
alignment and operation.
LATCHES
Check frequently to insure that all door latches are secure. Latches may become “sticky” due to residue build-
up from daily use and cleaning. Lubricate latches regularly with WD-40, silicone spray, graphite or other com-
mercial lubricants for stainless steel products. Do not use oil.
PERIMETER BUMPERS
Vinyl which has been dislodged from the channel due to severe bumping or scraping can be pried back into
place with a common screwdriver.
MOVING THE CABINET
Use the recessed side hand grips or rear push bar to move the cabinet. The condensing unit is located at the
base of the unit, providing a low center of gravity and placing the pan slides at a more accessible height.
DIGITAL THERMOSTAT CALIBRATION
1. Remove operator right duct assembly to gain access to the bulb.
2. Remove bulb from inside wall.
3. Remove front control panel to gain access to the digital thermometer.
4. Place bulb into a glass of ice water.
5. Use a calibration potentiometer to adjust to 32°F (0°C).
6. Reverse the procedure to reassemble.
CLEANING THE CONDENSER COILS
To maintain proper temperatures in the air screen refrigerator and to prolong the life of the compressor, the
condenser coils must be cleaned on a regular basis. It is recommended that the coils be checked and cleaned
monthly. This procedure is not covered under warranty, however, it is to be performed by only qualified engi-
neering/maintenance personnel.
1) Turn off unit and unplug from electrical power source.
2) To access the coils, remove the louvered panels located at the bottom of the unit.
3) Use a vacuum cleaner with a brush attachment to clean the coils. In extreme cases of dust and grease
build-up, compressed air may be required for cleaning the coil fins. Use extreme caution when doing this.
The air curtain must be moved to an isolated location to perform this procedure. Once the coils have been
cleaned, inspect for bent coil fins. Straighten bent fins using a straightening comb tool.
4) The compressor motor and other components can be cleaned using a stiff brush or whisk broom.

8
CLEANING
1) Remove the pan/tray slides by lifting the inner side panels up
and out. Wash tray slides with non-chlorinated cleaner. Rinse
thoroughly and allow to dry before re-installing.
2) Vinyl trim should be washed with a chlorine-free detergent
and water.. Rinse thoroughly with clear water and allow to dry.
Do not use abrasive cleaners, waxes, car polish or other sub-
stances containing strong aromatic solvents or alcohol. Use of
direct steam/hot water at temperatures above 190°F may
result in bubbling or loosening of vinyl adhesive.
3) To clean stainless steel surfaces, use only cleaners, deter-
gents, degreasers or sanitizers that are certified to be chloride
-free and phosphate-free and only in recommended concen-
trations. DO NOT exceed recommended concentrations or
mixing ratios. After cleaning and sanitizing, rinse all exposed
surfaces thoroughly with large amounts of clear water. Wipe
off any standing liquid or residue from all horizontal surfaces
in corners, or near edges.
CAUTION:
ELECTRIC SHOCK
HAZARD
Disconnect appliance
from electric power before
cleaning.
IMPORTANT:
DO NOT spill or pour
water into controls,
control panel or wiring. Water
damage is not covered by war-
ranty.
CAUTION:
Cleansers, detergents, degreasers, sanitizers, or bleaching agents that contain chlorides or phosphates
will cause permanent damage to stainless steel products. The damage appears as pits, eruptions, voids,
small holes, cracks, severe discoloration, or dulling of the metal finish. Water with high chloride content
can also damage stainless steel. If unsure of your water quality, we recommend you have it tested.
Use of cleaning agents that are not recommended for stainless steel may cause permanent damage to the cabinet.
THIS DAMAGE IS PERMANENT, COSTLY TO REPAIR AND IS NOT COVERED BY THE WARRANTY.
Purpose Frequency Cleaning Agent Method of Application
Routine Cleaning Daily Soap, ammonia detergent & water Sponge with cloth, rinse with clear water and
wipe dry
Smears/fingerprints As Needed Stainless steel cleaner or similar
products Rub with cloth as directed on package. Rub in direction of stainless steel grain. Do not use on
vinyl trim.
Stubborn spots & stains Daily
As Needed Any chloride-free or phosphate-free cleaner Apply with damp sponge or cloth. Rub in direc- tion of stainless steel grain. Rinse thoroughly.
Do not use on vinyl trim.
Hard water spots Daily
As Needed Vinegar Swab with cloth. Rise with water & wipe dry.
CAUTION: Do not
use steel wool pads
as they will result in
rusting from the ferrous metal
in the pads.
RECOMMENDED TIPS FOR CLEANING STAINLESS STEEL
CAUTION: Beware
of sharp edges with
sheet metal during
cleaning process.
CAUTION: Never tip
cart forward or open
doors to drain water
during or after washing. This
can cause serious damage to
the hinges, doors and latches.

9
CARTER-HOFFMANN WARRANTY
Carter-Hoffmann warrants to the initial purchaser of its standard Carter Line Products that Carter-Hoffmann will, at its
option, repair or replace, during the warranty period set forth below, any part of such products made necessary
due to a defect in material or workmanship which is present when the product leaves its factory and which manifests
itself during the warranty period under
normal use and service.
This warranty applies only to original equipment owned and possessed by the initial purchaser and the warranty
period begins on the date of original shipment from the Carter-Hoffmann factory and extends as follows: to com-
ponent parts and labor for one year; to refrigeration compressor unit for one year (limited to replacement of the
unit only-not to include the labor for removal, repair or replacement)
. Repair or replacement under this warranty will
be performed, unless otherwise authorized in writing by Carter-Hoffmann, at its factory. All parts or components to be re-
paired or replaced under this warranty are to be shipped prepaid to Carter-Hoffmann, with reimbursement credit for such part
or component to be given if found by Carter-Hoffmann to be defective.
Carter-Hoffmann neither makes nor assumes and does not authorize any other person to make or assume any
obligation or liability in connection with its products other than that covered in this warranty. This warranty ap-
plies only within the continental United States and Canada. In Alaska and Hawaii, this warranty applies only to
and is limited to the supply of replacement parts.
WARRANTY EXCLUSIONS AND LIMITATIONS
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IS HERE-
BY SPECIFICALLY DISCLAIMED BY CARTER-HOFFMANN. There are no warranties, express or implied,
which extend beyond the description on the face thereof.
This warranty does not cover and Carter-Hoffmann shall not under any circumstances be liable for any inci-
dental, consequential or other damages (such as injury to persons or property, loss of time, inconvenience, loss
of use, loss of business or profits, or other matters not specifically covered) arising in connection with the use of,
inability to use, or failure of these products.
Note: Due to our continuous process of product improvement and innovation, all listed specifications subject to
change.
Carter-Hoffmann
1551 McCormick Ave.
Mundelein, Illinois, 60060 USA
Phone: [phone] Toll free: 800-323-9793 Fax: [phone]
Sales and Marketing E-mail: [e-mail]
Service E-mail: [email protected]
Company Website: www.carter-hoffmann.com