GAS Connection

For model IB57, the gas inlet pipe size is 1/2" NPT at the gas valve. For models IB140, IB235, and IB290, the gas inlet pipe size is 3/4" NPT at the gas valve. The gas supply line must be sized to adequately provide the input BTU/Hr rate for that model at the specified flowing pressure (see table).

The maximum inlet gas pressure must not exceed the Max value shown in the chart at right. The Min value is for the purposes of input adjustment.

The gas valve (Fig. 5) is provided with a pressure tap to measure the gas pressure downstream, which is also the manifold pressure.

Gas supply piping must have a sediment trap and a manual shutoff valve (supplied by others) installed outside of the rear cover panel, ahead of the booster heater's gas control (Fig. 5).

GAS PRESSURE SPECIFICATIONS

[ FLOWING GAS PRESSURE — NOT STATIC ]

Model	Inches W.C. (Water Column)

	Incoming Line Pressure		Manifold
Type of Gas	Incoming Line Pressure		Manifold
Type of Gas			Pressure
	Minimum	Maximum	Pressure

IB57, IB140,
IB235, IB290	4.5	14.0	3.2
Natural Gas

IB57, IB140,
IB235, IB290	11	13	3.2
Propane

NOTE: DO NOT use teflon tape on gas line pipe threads. For gas line pipe connections, use LOCTITE 565, Hobart part 546292, or a flexible sealant suitable for use with Natural and LP Gases.

The heater and its gas connections must be leak tested before placing the appliance in operation. Use soapy water for leak test. DO NOT use open flame.

The heater and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).

The heater must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

Dissipate test pressure from the gas supply line before re-connecting the heater and its manual shutoff valve to the gas supply line. Caution: Failure to follow this procedure may damage the gas valve.

Model IB57

Models IB140 and IB235

Model IB290

Manual Valve

Gas Valve

Rear Panel

Sediment Trap

Manual Valve

NO OFF

Gas Valve

Rear Panel Sediment Trap

Manual Valve

Gas Valve

Rear Panel

Sediment Trap

PL-53289

Fig. 5

– 9 –

IB140 ML-110899, IB57 ML-110898, IB290 ML-110862, IB235 ML-110861 specifications

The Hobart IB235, IB57, IB140, and IB290 are a series of high-performance machines designed for commercial food processing, showcasing advanced features and technologies tailored for efficiency and reliability in various culinary settings.

The Hobart IB235 ML-110861 is characterized by its robust construction and user-friendly design. Its main feature is a 235-pound capacity, making it ideal for medium to large establishments. The machine integrates an electronic control system, allowing operators to program various settings for consistent results, crucial for maintaining food quality. The efficient mixing capabilities are supported by a heavy-duty motor, designed to handle tough doughs and mixes seamlessly. Additionally, the bowl lift mechanism enhances ergonomics, facilitating easier access and reducing operator strain.

The Hobart IB57 ML-110898 offers a compact yet powerful solution for smaller kitchens. With a 57-quart mixing bowl, it is perfect for bakeries and restaurants aiming to maximize productivity in limited space. Its unique planetary mixing action ensures uniform mixing, while the three-speed gear-driven transmission allows for versatility in food preparation. The machine’s safety features, including an interlocking bowl guard, enhance operational security, while its durable stainless steel construction ensures longevity and easy cleaning.

The Hobart IB140 ML-110899 stands out with its 140-quart capacity, designed for high-volume kitchens. Equipped with a range of attachment options, the IB140 can tackle various tasks, from mixing to whipping and blending. Its intuitive control panel facilitates easy operation, while the powerful motor guarantees consistent performance under heavy loads. The machine's compact footprint does not compromise performance, making it an asset in bustling environments such as catering businesses and large restaurants.

Lastly, the Hobart IB290 ML-110862 is built for maximum efficiency with a generous 290-quart capacity, making it a powerhouse for industrial applications. It features a dual-mixing action, allowing for thorough mixing of heavy ingredients, which is essential in commercial baking and food production. The automated tilt-back design simplifies loading and unloading processes. Additionally, advanced heat management technology ensures optimal mixing temperatures, preserving ingredient integrity.

Together, these Hobart models represent the pinnacle of commercial food processing technology, combining durability, functionality, and ease of use to meet the rigorous demands of the food industry. Their engineering excellence empowers operators to deliver quality results consistently, making them indispensable tools for any professional kitchen.