IHC-48

Overview

The Master-Bilt IHC-48 is a two-section commercial ice cream hardening and holding cabinet for operations that make, harden, and store ice cream in three-gallon cans. Its stated capacity is 43 cans, arranged on eight shelves. The cabinet measures 52 inches wide by 36 inches deep by 82 inches high. It is a storage and hardening cabinet, not a dipping or display cabinet.

Published product information describes a stainless steel exterior or front, anodized aluminum sides and interior, and urethane insulation. Two self-closing outer doors and four staggered-height insulated inner doors separate the cabinet sections from ambient conditions. Specifications in the supplied documents are not fully consistent: refrigerant, voltage, amperage, temperature range, and shipping weight differ between documents. Check the data plate and documentation supplied with the specific unit before connecting power or servicing it.

Key Features

• 43-can capacity: Holds 43 three-gallon cans across two sections.
• Eight-shelf layout: Four heavy-duty welded-wire cantilever shelves per section; the current product listing identifies epoxy-coated shelves.
• Two-layer door arrangement: Two self-closing outer doors and four insulated inner doors with magnetic catches help limit exposure to ambient heat. The inner doors are staggered in height.
• Commercial cabinet materials: Stainless steel front or exterior, with anodized aluminum sides and interior.
• Electronic controls: The manufacturer’s literature describes electronic temperature monitoring, defrost functions, and audible and visual alarms. The manual describes a digital controller and thermometer.
• Adjustable legs: Heavy-duty adjustable legs are specified at 6 to 7 inches.
• Service access: The manufacturer’s spec sheet states that inner and outer doors can be lifted off and that the magnetic door gaskets are replaceable.

Specifications

• Manufacturer and model: Master-Bilt IHC-48.
• Equipment type: Two-section ice cream hardening and holding cabinet.
• Capacity: 43 three-gallon cans.
• Sections: 2.
• Shelves: 8 total; 4 per section. Manufacturer spec sheet lists standard shelf size as 22 x 23 1/2 inches.
• Overall dimensions: 52 in. W x 36 in. D x 82 in. H (1321 x 914 x 2083 mm). Manufacturer spec sheet notes that height includes the 6- to 7-inch adjustable legs.
• Exterior and interior: Stainless steel front or exterior; anodized aluminum sides and interior.
• Insulation: Foamed-in-place urethane. The manufacturer spec sheet lists 2 1/2-inch walls and an R-factor of 21.55 for walls and 17.24 for doors.
• Outer doors: 2 self-closing, 2-inch-thick stainless steel foamed-in-place doors. The spec sheet notes a 90-degree hold-open feature and anti-condensate door-frame heater.
• Inner doors: 4 insulated doors with magnetic catches, staggered in height; two per section.
• Door swing: IHC-48 left door hinged left and right door hinged right.
• Refrigerant: The current product listing identifies R290. The supplied manufacturer spec sheet identifies R-404A. Verify the refrigerant on the specific unit before service.
• Refrigeration arrangement: Self-contained, top-mounted system. The current product listing describes forced-air circulation; the manufacturer spec sheet describes a semi-hermetic system.
• Condensate: Manufacturer spec sheet lists an electric condensate evaporator.
• Electrical details vary by document: The current product listing gives 115 V/60 Hz/1 phase, 16 A, two 5/6 HP units, an 8-foot cord, and a NEMA 5-20P plug. The supplied manufacturer spec sheet gives 208–230 V, 11.5 A, 1 1/2 HP, and a NEMA 6-15P plug; it states that IHC models require at least 208 V. Confirm the unit’s rating plate and supplied electrical documentation before installation.
• Listings stated in the sources: NSF and cULus appear in the current product listing. The manufacturer spec sheet states UL, C-UL, and NSF.
• Warranty information in supplied sources: The current product listing states 2-year limited parts and labour and 5-year compressor parts. The manufacturer spec sheet states 2-year limited parts and labour and a 3-year extended compressor warranty. Confirm the terms in the documentation supplied with the unit.

Installation & Requirements

Master-Bilt’s IHC manual says the cabinet is intended for an air-conditioned store at or below 75°F with relative humidity at 55% or less. Higher room temperature or humidity can affect performance and reduce capacity. Avoid placing the cabinet in direct sunlight, near radiant heat, or where it is exposed to direct airflow. For condensing-unit air circulation, the manual calls for at least 4 inches between the cabinet back and the wall and between the cabinet top and the ceiling. It also states UL clearance requirements of at least 4 inches at the top and 6 inches at the rear, with no side clearance required. Follow the unit’s supplied manual and applicable local requirements when resolving these clearance instructions.

For sanitation, the manual says to mount the cabinet on legs at least 6 inches high or on casters, or seal the base to the floor with NSF-listed silicone sealant. The IHC-48 manufacturer literature specifies heavy-duty adjustable legs of 6 to 7 inches. The manufacturer spec sheet also lists casters as an option.

The manual requires a grounded cabinet and says a separate circuit is recommended for each cabinet to reduce the risk of another appliance causing a fuse or breaker trip and product loss. Never use an extension cord. Electrical connections must follow applicable local, regional, or national standards. Because supplied electrical specifications conflict, verify the model’s actual voltage, amperage, horsepower and plug from its rating plate and supplied paperwork before connecting it. The manual says installation and service of refrigeration and electrical components must be performed by a refrigeration mechanic and/or licensed electrician.

The current product listing identifies R290, and the supplied manual warns that the cabinet uses flammable refrigerant. The manual says refrigeration repairs are for trained service personnel, warns not to puncture refrigerant tubing, and requires approved replacement components. It also says refrigeration and electrical work should be performed by qualified personnel.

Operation

The manual gives a factory temperature set point of -25°F. Its controller parameters list a minimum set point of -37°F and a maximum of 32°F. These control settings are distinct from published operating-temperature ranges, which vary between supplied product documents. The manual explains that pressing and releasing SET displays the set point; the actual cabinet probe temperature returns after pressing SET again or waiting 5 seconds. To change the set point, hold SET for more than 2 seconds, adjust with the up or down arrows within 10 seconds, then press SET or allow the control to time out.

The controller runs a timed defrost every 8 hours. To start a manual defrost, hold the DEFROST key for more than 2 seconds. During defrost, holding the key for more than 5 seconds ends the cycle, after which the compressor and evaporator fan start immediately. During initial start-up, the manual says the evaporator fans will not start and defrost cannot be initiated until the evaporator coil has cooled to 25°F. It also describes a non-adjustable front control that keeps the mullion heaters off until the cabinet temperature reaches 10°F.

If an inner or outer door is opened while the evaporator fans are running, the manual says the fans stop for one minute. After that delay they restart, the door-open alarm appears on the controller, and the alarm sounds. The manual instructs operators to check that the compressor switch behind the front grille is on during the final start-up check.

Cleaning & Maintenance

The manual recommends planned preventative maintenance and notes that the schedule depends on site conditions; it gives monthly, quarterly, or annual service contracts as examples, not as a universal required interval. It identifies cleaning the condenser as a preventative-maintenance item. The supplied excerpt does not specify a cleaning method or cleaning chemicals, so use the complete model manual or a qualified service provider for those details.

The manual warns that failure to maintain the cabinet can lead to breakdowns and may void the warranty. Before servicing electrical components in the cabinet, doors, or door frames, power must be off; the manual says to use a qualified technician. For service procedures, it instructs the technician to turn the refrigeration rocker switch to 0 and unplug the power cord before working, then reconnect power and return the switch to 1 when repairs are complete. Because the cabinet may contain flammable refrigerant, only approved replacement components are to be used.

Troubleshooting

• Cabinet does not start reliably: The manual says to check the supply for low voltage. It gives an example: if the supply reads 120 V with no load and drops below 107 V when the compressor tries to start, this indicates supply wiring that may be too small or a run that may be too long. Have electrical work assessed by a qualified technician.
• Fans do not run at initial start-up: The manual states that the evaporator fans do not start until the coil has cooled to 25°F.
• Door-open alarm (dA): The manual associates this signal with an open door. When a door is opened while the evaporator fans run, they stop for one minute and then restart; the alarm appears and sounds.
• Probe alarm (P1): The manual identifies P1 as a room-probe failure. It advises checking connections before replacing the probe; the alarm stops after the probe returns to normal operation.
• High- or low-temperature alarm (HA or LA): The manual identifies HA as a maximum-temperature alarm and LA as a minimum-temperature alarm. It says these alarms stop when thermostat temperature returns to normal and when defrost starts.
• Defrost needed: A manual defrost can be started by holding DEFROST for more than 2 seconds. The manual says the display shows dEF during defrost.
• Other alarm codes: The manual lists EA as an external alarm and CA as a serious external alarm or pressure-switch alarm, depending on the configured input. Refer service issues to qualified personnel.

Applications

The IHC-48 suits commercial creameries, ice cream parlours, restaurants, and other foodservice operations that need to harden freshly made ice cream and hold multiple three-gallon cans in organized frozen storage. Its 43-can capacity and two-section, eight-shelf layout support batch production and back-of-house inventory storage. It is intended for a controlled, air-conditioned operating environment, not for customer-facing product display.