HGC5

Overview

The Hobart HGC5 is a gas convection oven sold under the HGC5 Series name on Hobart's Canadian site (hobart.ca). Hobart's replacement-parts catalog for this platform — Form 34608 Rev. H, dated February 2019, published from Hobart's plant at 701 S. Ridge Avenue, Troy, Ohio — assigns the HGC5 catalog number ML-126615 and covers the related single- and double-deck builds that share its components.

The HGC5 is cataloged under Hobart Form 34608 Rev. H (February 2019), which covers the DGC5 and HGC5 gas convection oven platform.

Key Features

• 50,000 BTU per oven cavity on natural gas, per dealer specification listings for the HGC5 platform.
• 150°F–500°F temperature range under the KX-style thermostat.
• 120 V / 60 Hz / single-phase, 8-amp, 1/2 hp electrical specification as listed for the platform; used listings describe 115-volt controls.
• 5-hour mechanical timer with a dedicated HGC5 overlay (part 00-424238-00001); 1-hour timer versions are cataloged as well.
• Programmable control option — a programmable HGC5 overlay (00-424845-00001) is in the parts channel.
• Cook & Hold builds get a dedicated electrical component panel with 24 V output transformers, one-pole relays and a spark ignition control.
• Spark ignition — control 00-424137-00002 with an ignitor that serves as a flame detector (00-424194-00001).
• Full-size racks — used doubles ship with racks; one San Diego listing included 10 racks.
• Lit oven cavity — 40-watt oven lamp, with complete lamp-and-lens assemblies cataloged.
• Stainless steel outer panels — the catalog lists outer right-hand panels in SST.

Specifications

• Manufacturer: Hobart — 701 S. Ridge Avenue, Troy, Ohio 45374-0001
• Model: HGC5 gas convection oven; catalog number ML-126615
• Related builds in the same catalog: DGC5 (ML-126614), HGC5D (ML-126616), DGC5X (ML-126617), HGC5X (ML-126618), HGC5DX (ML-126619)
• Power: natural gas with 115-volt controls (used listing)
• BTU input: 50,000 BTU each oven
• Temperature range: 150°F–500°F
• Electrical: 120 V / 60 Hz / 1 phase / 8 amp, 1/2 hp
• Controls voltage: 115 V listed on used units; 120 V and 240 V component sets in the catalog
• Dimensions (used double-stack): 40" l x 36" w x 70" h
• Weight: approximately 1,000 lbs ship weight; 814 lbs approximate weight
• Included with used listings: complete double convection oven and racks; one listing with 10 racks
• Documentation: 4-page spec sheet (277 KB PDF); parts catalog Form 34608 Rev. H (February 2019)
• Manufacturer service line: 1-888-4HOBART

Installation & Requirements

Ventilation. Hobart states on its product page that an adequate ventilation system is required for commercial cooking equipment, so hood coverage over the oven belongs in the installation plan.

Gas connection and altitude orifices. The parts catalog specifies burner orifice spuds by gas type and altitude. On the standard burner assembly, natural-gas spuds run from 31 drill (sea level to 2,499 ft) up through 36 drill (8,500 to 10,500 ft); a second cataloged burner style starts at 30 drill for sea level to 2,499 ft. LP builds use 46-drill spuds (sea level to 2,499 ft) and 48-drill spuds (2,500 to 4,499 ft). The burner nozzle is part 00-417879-00001, and complete burner assemblies are cataloged per build (00-424135-000G1 for ML-126614/126615/126616; 00-424195-000G1 for ML-126618/126619).

Electrical connection. The catalog lists a 120 V electric supply cord (00-405016-00001, 120 V only), a grounding lug with set screw (00-417856-00001), and control transformers that step 120 V or 208–240 V down to 24 V for the control circuit. Because the platform was built with both 120 V and 240 V component sets, match any replacement electrical parts to the oven's actual build.

Operation

Temperature is set with the panel knob over the KX-style thermostat (00-411506-00003); a temperature control kit with harness (00-913149) is cataloged for control service. Timing runs on mechanical timers: 5-hour versions in 120 V/60 Hz (00-411690-00003), 240 V/60 Hz (00-411690-00004) and 240 V/50 Hz (00-411690-00006), plus 1-hour timers in 120 V (00-411690-00001) and 240 V (00-411690-00002). The 5-hour dial is labeled by the HGC5 overlay (00-424238-00001), and programmable builds carry their own overlay (00-424845-00001).

On ignition, the spark ignition control (00-424137-00002), mounted on its ignition module bracket (00-423760-00001), lights the burner; the ignitor serves as a flame detector (00-424194-00001), and a separate burner igniter (00-959507-00001) and burner (00-959508-00001) appear in the catalog's burner section. Cook & Hold-equipped ovens add a component panel built around a porcelain block assembly (00-417934-000G1), 24 V output transformers (00-421758-000G1 for 120 V; 00-421758-000G2 for 208–240 V) and one-pole relays (00-411497-000A1 for 120 V; 00-411497-000A2 for 200 V). Indicator lights in 120 V and 240 V versions report status, and the 40 W oven lamp lights the cavity.

Cleaning & Maintenance

The February 2019 parts catalog is the working document for keeping an HGC5 in service, and it organizes the wear items an operator will eventually replace:

• Oven lamps: 40 W, 120–130 V current-construction lamp (00-357036-00001); previous-construction 120 V bulb (01-1000V7-00028); 240 V bulb (00-342766-00002); complete oven lamp with lens and base (01-1000V7-00027); lens (00-357036-00003); lamp and housing kit, 250 V (00-913102-00032); lamp electrical cover (00-423832-00001)
• Controls: knob (00-411242-00001), KX-style thermostat (00-411506-00003), temperature control kit with harness (00-913149), and the timer set listed under Operation
• Ignition and burner: spark ignition control (00-424137-00002), ignitor/flame detector (00-424194-00001), burner igniter (00-959507-00001), burner (00-959508-00001), burner nozzle (00-417879-00001) and altitude-specific orifice spuds
• Safety: oven limit assembly kit (00-958827-000G3)
• Electrical: transformers (00-421758-000G1/G2), one-pole relays (00-411497-000A1/A2), porcelain block assembly (00-417934-000G1), 120 V supply cord (00-405016-00001) and grounding lug (00-417856-00001)
• Panels: outer right-hand stainless panels (00-424140-00002 for ML-126614/126615/126616 builds; 00-424228-00002 for ML-126618/126619 builds)

PartHubz supplies these cataloged replacement parts for the HGC5; reach the parts desk at 833-700-8006 or [email protected].

Troubleshooting & Service

For electrical diagnosis, start with the wiring diagram: check the user manual that came with the oven first, then Hobart's website or Hobart customer service at 1-888-4HOBART, or check with a local Hobart service technician. The parts catalog groups the components most often involved in ignition and safety circuits — the spark ignition control, the ignitor/flame detector, the oven limit assembly kit and the burner train (nozzle, orifice spud, burner assembly) — so a service call can be scoped around exact part numbers before the technician arrives.

Applications

• School and institutional kitchens — the documented used double came out of a school and was described as removed from a working environment in good working and cosmetic condition.
• Bakeries — the platform is merchandised through bakery equipment channels under pre-owned gas convection ovens.
• Restaurants and general foodservice — full-size gas convection ovens of this type move through used restaurant equipment markets.