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Ice Per Hour product guide

EdgeStar IB450SSP 50 lb Undercounter Ice Maker with Drain Pump

A plumbed 15-inch cabinet bay with a drain within five feet

A fifteen-inch undercounter ice maker rated at fifty pounds a day into a twenty-five pound insulated bin, with an internal drain pump, a reversible door and a seven-eighths inch cube. It needs a plumbed water line, a nearby drain and four inches of rear clearance, and the maker recommends a licensed plumber.

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Published specifications

  • Spec sheet: cutout 32 13/16 H x 15 1/16 W x 25 3/8 D inches
  • Manual: 4 in clearance at rear, 1 in at top and sides, indoor only
  • Manual: ambient 50-100 F, water 41-90 F, supply 15-80 psig
  • Manual: 115 V 60 Hz, 15 A service, 3 A fuse, separate circuit advised
  • Manual: drain pump lifts 5 ft vertical or horizontal; 5 ft drain hose
  • Spec sheet: 7/8 inch cube, 25 lb bin, 1 year parts and labour warranty

Fit and limits

Strengths

  • Internal drain pump lifts water up to five feet vertically or horizontally
  • Cutout, clearance and water limits are all published by the maker
  • Reversible door, levelling legs and freestanding or built-in installation

Caveats

  • Needs a plumbed supply and drain, with a licensed plumber recommended
  • Three different net weights are published across the three documents
  • Bin is insulated but not refrigerated, so ice melts and drains away

This is a plumbed appliance, not a countertop machine

The IB450SSP is a fifteen-inch undercounter ice maker with a black cabinet, a stainless door and an internal drain pump. Both maker documents say it needs a continuous cold water supply and a drain, and the owner's manual states that installation should only be done by a licensed plumber, in accordance with local electrical, water and drain codes.

The supplied hoses set the geometry. The manual says the water hose is about nine feet and the cold water pipe should be less than nine feet away, and that the drain hose is about five feet with the floor drain less than five feet away. The listing instead says four and a half feet for both the hose and the drain distance, so measure to the shorter figure.

The drain pump lifts water up to five feet vertically or five feet horizontally. Horizontal drain runs need a fall of a quarter inch per foot, the manual says an air gap will likely be required, and the drain hose must never loop higher than the floor of the ice bin. The spec sheet also lists a gravity drain line among the included accessories while describing the same unit as having an integrated pump, and the manual says both drain options exist.

Cutout, clearance and the weights that do not agree

The spec sheet publishes a cutout of 32 13/16 inches high, 15 1/16 wide and 25 3/8 deep, with the cabinet itself at 14 9/16 wide, 23 3/8 deep and 32 7/8 high, and 24 7/8 deep once the handle is counted. The manual's specifications page gives a different set, 14.6 wide by 23.6 deep by 33.0 high, and the listing gives two more sets again.

The manual also asks for at least four inches of clearance at the rear and one inch at the top and sides, and says the installation must still allow the unit to be pulled forward for servicing. Combined with the deeper cutout figure, plan the bay from the spec sheet's cutout numbers rather than from the cabinet dimensions.

Weight is the sharpest disagreement. The listing says 76.7 pounds, the manual's specifications page says 84 pounds and the spec sheet says 87 pounds. Neither maker document explains the gap. Use the heaviest figure when arranging help, and note that the manual asks for two or more people to move and install it anyway.

What the ice actually looks like

The listing's first bullet warns that ice is produced in sheets rather than individual cubes and will have to be broken apart. The maker documents describe the same mechanism differently: the spec sheet calls the ice type Cube and gives a size of seven eighths of an inch on each side, and the manual explains that during harvest the cubes slide off the evaporator as a unit into the bin.

Both descriptions are attached to the same machine and neither document acknowledges the other, so we are not going to say which one describes what lands in the bin. Ask the seller what the harvested ice looks like if cube shape is part of why you are buying this rather than a countertop machine.

A full freeze and harvest cycle takes fifteen to forty minutes depending on temperature and operating conditions, and the manual says the actual daily output varies with ambient and water conditions. The fifty pounds per day figure is a ceiling, not a promise.

The bin is insulated, not refrigerated

The manual states plainly that this ice maker is not a freezer. The bin holds up to twenty-five pounds and is insulated but not refrigerated, so ice melts slowly and the meltwater drains away. When enough has melted, the machine starts making more on its own.

The bin behaviour follows from that. A machine left on with nobody taking ice keeps cycling to replace what melts away. The manual also says nothing other than ice should be kept in the bin, and gives no exception for bottles, cans or anything else you might be tempted to chill in there.

When the bin fills, the slab of cubes holds the ice-full probe open, the unit stops making ice and switches to a cold preservation stage. After ice is removed, the red bin-full light flashes for about three minutes before the machine restarts.

Operating window, power and the alarm you should know about

The manual sets an indoor-only operating window: ambient temperature above 50 and below 100 degrees Fahrenheit, incoming water between 41 and 90 degrees, and a continuous supply with a minimum pressure of 15 psig and static pressure no more than 80 psig. It must be protected from wind, rain, spray and drips, and the listing's comparison table marks this model as not outdoor approved.

Electrically it wants a standard 115 volt 60 hertz grounded supply on 15 amp service, with the manual recommending a separate circuit serving only the ice maker and giving a fuse or breaker size of three amps. It says not to use extension cords or power strips, and asks that the unit stand upright for at least twenty-four hours before it is first plugged in.

There is one alarm worth knowing in advance. A second water level switch triggers a buzzer if the drain pump, level switch or drain tube is malfunctioning. The manual's response is to power the unit off, remove the ice, check the water trough and the power, and call customer service if it persists.

Care every six months, and a one-year warranty

The manual lists five things to keep clean: the exterior, the interior, the condenser, the water distribution tube and the ice-making system. The condenser should be cleaned at least once every six months, and with hard water of fifteen to twenty grains per gallon the ice-making system may need cleaning as often as every six months too.

The machine has an automatic clean mode started from the control panel that runs about thirty minutes and is followed by three rinse cycles, and the manual asks you to discard the very first batch of ice after installation. Cleaner quantities, sanitising ratios and the plumbing steps are not reproduced here; follow the manual and the instructions printed on the cleaner you use.

The spec sheet states the warranty as one year parts and labour. The manual adds that the unit is for domestic indoor use only and says industrial or commercial use may invalidate that warranty, so a home bar is inside the terms and a rented-out short-let kitchen is worth asking about.

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Primary sources

  1. EdgeStar spec sheet for the exact model IB450SSP, supplied with the listing
  2. EdgeStar built-in ice maker with internal pump owner's manual, IB450SSP

Primary sources checked .

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