U-Line UHNB315, UHNP315 User Manual

USER GUIDE & SERVICE MANUAL

3 Class ● UHNB315 / UHNP315 ● 15” Nugget Ice Machine

USER GUIDE & SERVICE MANUAL

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Table of Contents

Intro

Safety

Safety and Warning

Disposal And Recycling

Installation

Environmental Requirements

Electrical

Cutout & Product Dimensions Side by Side Installation Water Hookup

Drain

Anti-Tip Bracket

General Installation

Integrated Panel Dimensions

Integrated Panel Installation

Grille Installation

Door Swing

Door Adjust

Maintenance

Cleaning

Cleaning Condenser

Extended Non-Use

Operating Instructions

Control Operation

Ice

Airflow and Product Loading

Service

Quick Guide

Troubleshooting

Wire Diagram

Reference diagrams

Product Liability

Warranty Claims

Parts

Ordering Replacement Parts

R600a Specifications

System Diagnosis Guide

Compressor Specifications

Troubleshooting Extended

Control Operation - Service

Thermistor

Warranty

USER GUIDE

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WELCOME TO U-LINE

Congratulations on your U-Line purchase. Your product comes from a company with over five decades of premium modular ice making, refrigeration, and wine preservation experience. U-Line creates products focused on functionality, style, and inspired innovations — paying close attention to even the smallest details. Applications include residential, outdoor, ADA height compliant, marine, and commercial. Complete product categories include Beverage Centers, Wine Refrigerators, Ice Machines, Refrigerators, Freezers, and Dispensers.

Our advanced refrigeration systems, large and flexible capacities, and Built-In to Stand Out® clean integrated look allow you to preserve the right product, in the right place, at the right temperature. Since 2014, U-Line has been part of the Middleby family of brands. All products are designed, engineered, and assembled in Milwaukee, Wisconsin, USA, and select products are available worldwide.

PRODUCT INFORMATION

Looking for additional information on your product? User Guides, Spec Sheets, CAD Drawings, Compliance Documentation, and Product Warranty information are all available for reference and download at u-line.com.

PROPERTY DAMAGE / INJURY CONCERNS

In the unlikely event property damage or personal injury is suspected related to a U-Line product, please take the following steps:

1.U-Line Customer Care must be contacted immediately at +1.414.354.0300.

2.Service or repairs performed on the unit without prior written approval from U-Line is not permitted. If the unit has been altered or repaired in the field without prior written approval from U-Line, claims will not be eligible.

GENERAL INQUIRIES

U-Line Corporation

8900 N. 55th Street

Milwaukee, Wisconsin 53223 USA Monday - Friday 8:00 am to 4:30 pm CST T: +1.414.354.0300

Email: [e-mail] u-line.com

CONNECT WITH US

SERVICE & PARTS ASSISTANCE

Monday - Friday 8:00 am to 4:30 pm CST T: +1.414.354.0300

Service Email: [e-mail]

Parts Email: [e-mail]

Designed, engineered and assembled in WI, USA

Introduction

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USER GUIDE

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Safety and Warning

NOTICE

Please read all instructions before installing, operating, or servicing the appliance.

Use this appliance for its intended purpose only and follow these general precautions with those listed throughout this guide:

SAFETY ALERT DEFINITIONS

! DANGER

This unit contains R600a (Isobutane) which is a flammable hydrocarbon. It is safe for regular use. Do not use sharp objects to expedite defrosting. Do not service without consulting the

“R600a specifications” section included in the

User Guide. Do not damage the refrigerant circuit.

Throughout this guide are safety items labeled with a Danger, Warning, or Caution based on the risk type:

! DANGER

Danger means that failure to follow this safety statement will result in severe personal injury or death.

! WARNING

Warning means that failure to follow this safety statement could result in serious personal injury or death.

! WARNING

Service must be done by factory authorized service personnel. Any parts shall be replaced with like components. Failure to comply could increase the risk of possible ignition due to incorrect parts or improper service.

CALIFORNIA PROPOSITION 65

This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm.

www.P65warnings.CA.gov

! CAUTION

Caution means that failure to follow this safety statement may result in minor or moderate personal injury, property, or equipment damage.

! CAUTION

This equipment is to be installed with adequate backflow protection to comply with applicable federal, state and local codes.

Safety and Warning

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Disposal and Recycling

! DANGER

RISK OF CHILD ENTRAPMENT. Before you throw away your old refrigerator or freezer, take off the doors and leave shelves in place so children may not easily climb inside.

If the unit is being removed from service for disposal, check and obey all federal, state, and local regulations regarding the disposal and recycling of refrigeration appliances, and follow these steps completely:

1.Remove all consumable contents from the unit.

2.Unplug the electrical cord from its socket.

3.Remove the door(s)/drawer(s).

Disposal and Recycling

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USER GUIDE

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Environmental Requirements

This model is intended for indoor/interior applications only and is not to be used in installations that are open/ exposed to natural elements.

This unit is designed to operate between 50°F (10°C) and 100°F (38°C). Higher ambient temperatures may reduce the unit’s ability to reach low temperatures and/or reduce ice production on applicable models.

For best performance, keep the unit out of direct sunlight and away from heat generating equipment.

In climates where high humidity and dew points are present, condensation may appear on outside surfaces. This is considered normal. The condensation will evaporate when the humidity drops.

! CAUTION

Damages caused by ambient temperatures of 40°F (4°C) or below are not covered by the warranty.

Environmental Requirements

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Electrical

! WARNING

SHOCK HAZARD — Electrical Grounding Required. Never attempt to repair or perform maintenance on the unit until the electricity has been disconnected.

Never remove the round grounding prong from the plug and never use a two-prong grounding adapter.

Altering, cutting or removing power cord, removing power plug, or direct wiring can cause serious injury, fire, loss of property and/or life, and will void the warranty.

Never use an extension cord to connect power to the unit.

Always keep your working area dry.

NOTICE

Electrical installation must observe all state and local codes. This unit requires connection to a grounded (three-prong), polarized receptacle that has been placed by a qualified electrician.

The unit requires a grounded and polarized 115 VAC, 60 Hz, 15A power supply (normal household current). An individual, properly grounded branch circuit or circuit breaker is recommended. A GFCI (ground fault circuit interrupter) is usually not required for fixed location

appliances and is not recommended for your unit because it could be prone to nuisance tripping. However, be sure to consult your local codes.

See CUTOUT & PRODUCT DIMENSIONS for recommended receptacle location.

Electrical

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Cutout & Product Dimensions

PREPARE SITE

Your U-Line product has been designed for either freestanding or built-in installation. When built-in, your unit does not require additional air space for top, sides, or

rear. However, the front grille must NOT be obstructed, FRONT and clearance is required for an electrical connection in

the rear.

! CAUTION

Unit can NOT be installed behind a closed cabinet door.

	14 ⁄ ”
	(379 mm)
	28”	33 ⁄ ” to 34 ⁄ ”
	(711 mm)
		(855 mm to
		881 mm)
		3 ½”
		(89 mm)

If you would like to align the face of the unit with other adjacent cabinet doors, you may need to alter the wall just behind the drain connection on the unit to accommodate the drain.

CUTOUT DIMENSIONS

TOP

Preferred location for electrical outlet

is in an adjacent cabinet. 5⁄8"

(16 mm)

34 1⁄ "	24"
(870 mm)	(610 mm)
to
35 1⁄ "
(889 mm)

7" (178 mm)

1 1⁄ " (38 mm)

15" (381 mm)

PRODUCT DIMENSIONS

SIDE

REAR

		3 ⁄”
7 ½”	Water Line	(80 mm)
(191 mm)	Drain
	7 ½”
	(191 mm)
	4”	4”
	(102 mm)	(102 mm)
	Power Cord	2”
	6 ft (183 cm)
		(51 mm)

21 ⁄ ”

(535 mm)

1 ⁄ ”

(48 mm)

17 ½”

(445 mm)

22 ⁄ ” *

24 ⁄ ” (583 mm)

(630 mm)

10 ⁄ ”

(260 mm)

4 ⁄ “ (111 mm) *

*Add 1⁄2” for integrated models with 3⁄4” panel installed.

Cutout & Product Dimensions

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USER GUIDE

Side-by-Side Installation

OTHER SITE REQUIREMENTS Side-by-Side Installation

Units must operate from separate, properly grounded electrical receptacles placed according to each unit’s electrical specifications requirements.

Cutout width for a side-by-side installation is the total of the widths listed under Cutout Dimensions in each unit’s Installation Guide. Each door can be opened individually (one at a time) without interference.

However, to ensure unobstructed door swing (opening both doors at the same time), 1/4" (6.4 mm) of space needs to be maintained between the units.

1/4" (6 mm)

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Hinge-by-Hinge Installation (Mullion)

When installing two units hinge-by-hinge, 13/16" (22 mm) is required for integrated models. Additional space may be needed for any knobs, pulls or handles installed.

13/16" (22 mm)

Stainless steel models which include the standard stainless handle will require 4-9/16" (116 mm) to allow both doors to open to 90° at the same time.

4-9/16" (116 mm)

Side-by-Side Installation

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USER GUIDE

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Water Hookup

PREPARE PLUMBING

The water valve uses a standard 1/4” (6.35 mm) compression fitting. U-Line recommends using accessory water hook up kit – part # 80-54674-00. The kit includes a 10’ (3 m) braided flexible water supply line and a brass hose fitting.

! CAUTION

Plumbing installation must observe all state and local codes. All water and drain connections

MUST BE made by a licensed/qualified plumbing contractor. Failure to follow recommendations and instructions may result in damage and/or harm.

Water Supply Connection

! CAUTION

Do not use any plastic water supply line. The line is under pressure at all times. Plastic may crack or rupture with age and cause damage to your home.

Do not use tape or joint compound when attaching a braided flexible water supply line that includes a rubber gasket. The gasket provides an adequate seal – other materials could cause blockage of the valve.

Failure to follow recommendations and instructions may result in damage and/or harm, flooding or void the product warranty.

Use new hose set. Do not reuse old hose set.

When connecting the water supply, please note the following:

•Before installing the unit and connecting to the cold water supply, review the local plumbing codes.

•The water pressure should be between 20 and 120 psi

(138 and 827 kPa).

•TDS (Total Dissolved Solids) between 5 ppm (mg/L) and 400 ppm (mg/L) and water hardness less than 200 mg/L (ppm), 12 gpg (grains per gallon).

•TDS and/or water hardness above these limits should be treated with a reverse osmosis system or other filtration system.

•Softened water is not recommended as it may result in softer ice than desired.

•The water line MUST have a shut-off valve in the supply line.

•The water line should be looped into 2 coils. This will allow the unit to be removed for cleaning and

servicing. Make certain that the tubing is not pinched or damaged during installation.

! CAUTION

Turn off water supply and disconnect electrical supply to unit prior to installation.

Use caution when handling back panel. The edges could be sharp.

Water Hookup

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1.Turn off water supply and disconnect electrical supply to product prior to attempting installation.

2.Remove the back panel.

3.Thread water line through back panel hole (with bushing).

4.Locate water valve inlet and connect to valve.

3

4

5.Turn on water supply and check for leaks.

6.Reinstall back panel.

Water Hookup

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Drain

Model numbers including “CL” or “NB” do not include a factory installed drain pump.

GRAVITY DRAIN

Normal

Proper Drain

Model numbers including “CP” or “NP” include a factory installed drain pump.

With Trap

Poor Drainage, Water Will Back Up

DRAIN CONNECTION

! CAUTION

If your U-Line unit did not come with a factory installed drain pump you must use a gravity style drain connection. For assistance in determining if your unit has a pump please contact U-Line. The floor drain must be large enough to accommodate drainage from all attached drains. Follow these guidelines when installing drain lines to prevent water from flowing back into the ice maker storage bin and/ or potentially flowing onto the floor, which may result in personal injury or property damage

NOTICE

Drain can NOT be located directly below the unit. Unit has a solid base that will not allow the unit to drain below itself.

There is a possibility that hose connections may have loosened during shipment.

Verify all connections and fittings are free from leaks.

With Trap and Vent

Proper Drain

A gravity drain may be used if:

Drain line has at least a 1” drop per 48” (approximately 2 cm drop per 100 cm) of run.

Drain line does not create traps and is vented per local code.

1.Cut the pre-installed drain tube to length.

2.Connect to your local plumbing per the local code.

3.If necessary, insulate drain line to prevent condensation.

! CAUTION

Failure to connect water supply or drain line connections properly can result in personal injury and property damage. Gravity drain connections must be routed downward from the rest of the unit at the rate of 1/4” per foot (1 cm per 50 cm).

! CAUTION

This equipment is to be installed with adequate backflow protection to comply with applicable federal, state and local codes

Drain

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FACTORY INSTALLED DRAIN PUMP

If your drain line will run up to a stand pipe, disposal or spigot assembly, or does not otherwise meet the

requirements for a gravity drain, you may have ordered a pre-installed U-Line P60 drain pump.

If you need to install a P60 drain pump into your unit, see DRAIN PUMP section in the User Manual.

See below for typical installations requiring a drain pump.

Stand Pipe

P60 Pump Required

Waste

Shut-O

Valve

Cold

Hot Water

Water

Y-Branch Tailpiece

P60 Pump Required

Air Gap

(Optional Hook-Up)

Waste

Shut-O

Valve

Cold

Hot Water

Water

NOTICE

The maximum lift for the P60 drain pump is

10 feet. This must be done as close to the rear of the unit as possible.

Waste

Disposal Assembly

P60 Pump Required

Air Gap

(Optional Hook-Up)

Waste

Cold

Hot Water

Water

Shut-O

Valve

Drain

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USER GUIDE

Anti-Tip Bracket

Use one of the methods below to secure the unit

CABINET/COUNTER ANTI-TIP INSTALLATION

(For built-in applications)

1.Slide unit out so screws on front of unit are easily accessible.

2.Remove the two screws from the front of the unit.

3.Bend bracket along one of the perforations to allow attachment to the desired adjoining surface.

4.Gently push unit into position. Be careful not to entangle the electrical cord or water line, if applicable.

5.Check to be sure the unit is level from front to back and side to side. Make any necessary adjustments. The unit’s top surface should be approximately 1⁄8” (3 mm) below the countertop.

6.Secure bracket to adjoining surface.

FLOOR MOUNTED ANTI-TIP INSTALLATION

(For free-standing applications)

1.Locate two anti-tip brackets included with the kit.

2.Place the unit into the area where it will be installed.

Check the door, sides, and top for a proper fit. Also test to make sure the door opens and closes freely.

3.Remove grille and place a mark on the floor at the front of the unit. Also place a mark on the floor in the center of the unit.

4.Remove the unit. Using a square, extend center line “B” (see chart below). This line serves as the back edge for the anti-tip brackets. From the center line, measure “A” to the left and right. This line is the outer edge of each bracket.

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Surrounding area (Top view)

		Back of unit	Back wall
		B
	A
	C	A
	L
		Front of unit
	515	518	524
A	7 5⁄8”	9”	11 15⁄16”
B	22”	22”	22”

5.Place the anti-tip brackets on the floor against the line drawn for the outer edge. Mark spots for the screw

holes.

Surrounding area (Top view)

Drill holes and
mount anti-tip
brackets to floor	Back wall

Front	B
of
unit
A
C	A
L

Back of unit

6.Use a 1/8” drill to make two starter holes and fasten the anti-tip brackets to the floor using the screws provided.

7.Place the unit back into position, making sure the feet engage the anti-tip brackets properly. Check the alignment of the lines made on the floor in step

3 with the position of the front feet to ensure proper

positioning.

Anti-Tip Bracket

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General Installation

LEVELING INFORMATION

1. Use a level to confirm the unit is level. Level should be placed along top edge and side edge as shown.

1

2.If the unit is not level, adjust the legs on the corners of the unit as necessary.

INSTALLATION

1.Plug in the power/electrical cord.

2.Gently push the unit into position. Be careful not to entangle the cord or water and drain lines, if applicable.

3.Re-check the leveling, from front to back and side to

side. Make any necessary adjustments. The unit’s top surface should be approximately 1/8” (3 mm) below the countertop.

4.Install the anti-tip bracket.

5.Remove interior packing material and wipe out the inside of the unit with a clean, water-dampened cloth.

Turn to Adjust

3.Confirm the unit is level after each adjustment and repeat the previous steps as needed.

INSTALLATION TIP

If the room floor is higher than the floor in the cutout opening, adjust the rear legs to achieve a total unit rear height of 1⁄8” (3 mm) less than opening’s rear height. Shorten the unit height in the front by adjusting the front legs. This allows the unit to be gently tipped into the opening. Readjust the front legs to level the unit after it is correctly positioned in the opening.

General Installation

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USER GUIDE

Integrated Panel Dimensions

Metric measurements rounded and optimized.

INTEGRATED PANEL

NOTICE

Due to differences in surrounding cabinetry the panel may not perfectly align with door. The procedure below is designed to provide a finished integrated panel that seamlessly integrates with surrounding cabinetry.

Panel Preparation

A full integrated door panel completely covers the door frame and provides a built-in appearance.

NOTICE

The door panel must not weigh more than 20 lbs (10 kg).

It is important to ensure that all drilled holes are drilled to the correct depth in order to avoid splits in the wood when hardware is installed.

1.Cut the panels to the dimensions listed in the diagram below.

2.Optional: Stain or finish panel to desired stain or color. Be sure to closely follow the instructions provided by the manufacturer.

3.Optional: Install handles and hardware.

NOTICE

When applying an integrated panel to a unit, ensure that both sides are finished in order to prevent warping. In some panel installations, the panel may be visible through the glass while the door is open.

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Integrated Panel Dimensions

BACK SURFACE MUST HAVE AMPLE FLAT SURFACE

TO MOUNT OVERLAY PANEL FLAT AND WITHOUT

INTERFERENCE		Ώȟȯ"
		(20 mm)

14ΑȟȬȱ"

(379 mm)

30"

(762 mm)

Integrated Panel

Integrated Panel Dimensions

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USER GUIDE

HANDLELESS INTEGRATED DOOR PANEL

The following procedure is designed to provide a finished, handleless solid panel for an 15" (381 mm) door that seamlessly integrates with its surrounding cabinetry.

NOTE: Many cabinet manufacturers provide a ready solution for a handleless, integrated design that can be easily applied to your model. Consult your cabinet manufacturer for applicable design and installation details. The cabinet manufacturer’s solution to this design and integration detail will often result in an integrated panel solution wherein the size of the panel may result in a height dimension taller than what we specify. This can be achieved provided the additional height is positioned above the appliance door.

NOTICE

The integrated panel aligns with the surrounding cabinetry and, due to differences in cabinetry, may not align perfectly with the door.

The appliance will need up to 34-1/2" (876 mm) to the underside of the counter to leave room for leveling adjustments.

A single prepared panel with insert must not weigh more than 20 lbs (10 kg).

Integrated Panel Preparation

1.Cut the main panel to the dimensions below. For details, see the drawings on the next page.

Main panel width	Main panel height
14-15/16" (379 mm)	28-13/16" (732 mm)

2.Create the top design for the handleless feature and the 1/8" (3 mm) notch for the insert(s) indicated on the Top Detail drawing, on the next page.

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3.Prepare the insert(s) that will back up the handleless design. Wooden Insert – Cut 1/8" (3 mm) thick wooden insert(s) to the dimensions below.

Wooden insert width	Wooden insert height
14-15/16" (379 mm)	3-1/2" (89 mm)

Wooden Insert

Top Design

and Insert Notch

Main Panel

Integrated Panel

4.Optional: Stain or finish panel and wooden insert to desired stain or color. Be sure to closely follow the instructions provided by the manufacturer.

NOTICE

If finishing panel or wooden insert, all sides must be finished to prevent warping.

5.Attach the insert to the panel. Wood glue or equivalent adhesive should be used to attach insert to panel.

Attach Wooden Insert

Integrated Panel Dimensions

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Handleless Integrated Panel Dimensions

ȟΞ" (3 mm)

Top Design

ȟΚ" (6 mm)

ΓȟΞ" (22

mm)

Ref.

R ΑȟΞ"

2-ΏȟΞ"

(R 16 mm)

(60 mm)

14- ΑȟΗȱ"

(379 mm)

2-Ώȟȯ"

(70 mm)

Insert Notch

2-Ώȟȯ"

(70 mm)

Wooden Insert

Notch Depth: /Ξ" (3 mm)

Top Detail

28- ΏȟΗΜ"

(732 mm)

ΏȟΚ" (20 mm)

Wooden Insert Dimensions

14- ΑȟΗȱ" (379 mm)

ȟΞ" (3 mm)

3- ȟΘ"

(89 mm)

Integrated Panel Dimensions

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EXTENDED INTEGRATED PANEL

3. Optional: Install handles and hardware

NOTICE

Due to differences in surrounding cabinetry the panel may not perfectly align with door. The procedure below is designed to provide a finished panel that seamlessly integrates with surrounding cabinetry.

Panel Preparation

An extended integrated panel can be used to maintain alignment with an adjacent extended cabinet height or a reduced toe-kick/grille application.

1.Cut the panels to the dimensions listed in the appropriate diagram on the next page.

2.Optional: Stain or finish panel to desired stain or color. Be sure to closely follow the instructions provided by the manufacturer.

NOTICE

The door panel must not weigh more than 20 lbs (10 kg).

It is important to ensure that all drilled holes are drilled to the correct depth in order to avoid splits in the wood when hardware is installed.

Appliance will need up to 34-1/2" (876 mm) to the underside of the counter to leave room for leveling adjustments.

When applying an integrated panel to a unit, ensure that both sides are finished in order to prevent warping. In some installations, the panel may be visible through the glass while the door is open.

		Front	Side
	Integrated Panel/Integrated Frame		Integrated Panel
	Cabinet	U-Line	U-Line
		Unit	Unit

3-5/16" (89 mm)

3-5/16" (89 mm)

> 3-5/16"

to

to

(> 89 mm)

4-5/16" (114 mm)

4-5/16" (114 mm)

Floor

Front

Side

Extended Integrated Panel/Extended Integrated Frame

Integrated Panel

Cabinet

U-Line

U-Line

Unit

Unit

* Panel can extend beyond the door frame. **A minimum of 1" (25 mm) from the floor

is required for proper ventilation.

	*	3-5/16" (89 mm)						3-5/16" (89 mm)
			to						to
			1" (25 mm)**						1" (25 mm)**

Floor

Integrated Panel Dimensions

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