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UDS Specification

TYPICAL SPECIFICATIONS

Model: Model: UDI (Island Applications) or UDW (Wall Applications)

Description: A Utility Distribution System shall provided be as indicated on drawings. Systems shall have two vertical risers, one on each end, with one dedicated to electrical and the other to plumbing. The horizontal distribution raceway between the risers shall be separated into electrical and plumbing compartments and each shall be completely enclosed and water tight with removable access panels. The risers and raceway shall be constructed of 16 gauge, type 304 stainless steel, #4 finish. A circuit protected dual convenience outlet shall be provided on each riser. Service connections shall be located behind easily removable access panels.


Approvals:     Unit(s) shall be ETL Listed to US and Canadian Standards, ETL Sanitation Listed, AGA and MA approved.


General Construction and Features
  • Electrical Riser: Main power connection shall be made to the main circuit breaker which has a shunt trip and is mounted in the electrical riser.
     
  • Bus bar systems: Electrical power shall be fed through the main circuit breaker to the bus bar system in the raceway. Each appliance is fed from the bus bar through individually sized circuit breakers located along the raceway.
     
  • Wireway systems: Electrical power shall be fed through a main circuit breaker to a distribution panel which contains individual branch breakers. Each appliance is fed from the individual breakers which are wired to each receptacle located along the raceway.
     
  • Plumbing Riser: The plumbing riser shall house manual (quarter-turn) shut-off valves for each incoming main supply line located in the UDS. The plumbing manifolds shall be provided with stub-outs along the raceway for the individual plumbing connections. Each stub-out shall be equipped with a manual (quarter-turn) shut-off valve.
     
  • Expandability: All electrical systems are designed for additional capacity for future expansion or upgrade of connected appliances.
     
  • Bus Bar Systems: Individual circuit breakers shall be mounted on interchangeable plates for ease of service and relocation.
     
  • Wireway: Electrical distribution panel located in the riser shall be equipped with branch circuit breakers and sized for expansion.
     
  • Serviceability and Accessibility: Lift out doors shall provide easy access to risers without moving cooking equipment, in most cases. Removable panels provided along the length of the raceway shall allow access to either plumbing or electrical compartments.
     
  • Electric Outlets and Cord Sets: All outlets shall provide moisture resistant covers and have been sized per NEMA standards. Each is supplied with a matching cord and plug set if these are not already supplied by the equipment manufacturer. Twist-lock sets are standard in island applications. All 120V, single phase 15 and 20 amp receptacles are DCO-GFI.
     
  • Main Disconnect: One point disconnect through a main circuit breaker equipped with a 120 VAC rated shunt trip provided in the riser.
     
  • Gas Solenoid Valve: Electrical or Mechanical. Electrical valves shall be provided with a manual reset button and time delay relay to prevent pilot lights from going out in momentary power outages.
     
  • Shunt Trip: Shall be provided with each main breaker.
     
  • Appliance Protection: Each electrical outlet connection shall be protected with an individual circuit breaker.
     
  • Dual Convenience Outlets: Located at each riser with integral ground fault protection.
     
  • Fire/Fuel Shutoff: In compliance with NFPA 96, terminal connection points shall be provided for field wiring to the fire protection system to shut off fuel sources and power in the event of a fire.
     
  • Emergency Kill Switch: Single point shutdown of electrical power and electrical gas valves.
     


Electrical
  • Bus Bar Systems: The electrical raceway shall be a four (4) conductor copper bus bar system having balanced load and phases and shall be completely isolated from the plumbing supply manifolds. Point of use circuit breakers shall be mounted on connection plates which are located on the peaked top of the raceway and protected by a water resistant stainless steel hinged cover. The breakers shall be easily accessible to the operator. The connection plates shall be easily interchangeable with spare blank plates which shall be provided for future expansion or changes. A main circuit breaker with a built-in 120 VAC rated shunt trip shall be furnished in the electrical riser and require a single point incoming connection. Terminal block connections shall be provided for field interconnection between the shunt trip and the fire protection system for power shut-off in the event of a fire.
     
  • Wireway Systems: The electrical system shall consist of a main circuit breaker which feeds power to a distribution panel located in the electrical riser containing individual branch breakers. Each appliance is fed from the individual breakers which are wired to each receptacle located along the raceway and shall be completely isolated from the plumbing supply manifolds. The main circuit breaker shall be equipped with a built-in 120 VAC rated shunt trip and shall be located in the electrical riser requiring a single point incoming connection. Terminal block connections shall be provided for field interconnection between the shunt trip and the fire protection system for power shut-off in the event of a fire. All outlets shall be equipped with grounding type receptacles having specific NEMA polarized configurations and located on the under side (Model UDI) or front side (Model UDW) of the raceway at each equipment location. Outlets are matched to the cord and plug sets supplied with equipment. On the Model UDI, all 120V, single phase 15 and 20 AMP receptacles are DCO-GFI. Twist lock cord and plug sets are provided for equipment supplied without cords. On the Model UDW, straight blade cord and plug sets are provided for equipment supplied without cords.
     
  • Main Circuit Breaker: 15 to 600 Ampere, 1 or 3 phase
    • 120, 208, or 480 VAC System
    • Branch Circuit Breaker: 15 to 100 Ampere, 1 or 3 phase
    • 120, 208, or 480 VAC System

Plumbing
  • The plumbing compartment shall be completely isolated from the electrical with all piping labeled.
     
  • Hot and cold water and steam supply and return manifolds shall be insulated.
     
  • All incoming service connections shall be provided with 1/4 shut-off valve. Each branch connection shall be provided with 1/4 shut-off valve, with color coded hoses, and located at each equipment location.
     
  • Color coded quick disconnect hoses are provided for connection to equipment.
     
  • Hot and cold water piping, including branch connections, shall be type "L" copper tubing. All fittings will be copper sweat soldered (95-5 type).
     
  • Gas and steam piping, including branch connections, shall be threaded black iron. There shall be a drip tee on the incoming gas end. The gas manifold shall be furnished with either an electrical or mechanical gas valve which shall be field interlocked with the fire protection system to shut off fuel sources in the event of a fire. Electrical gas valves shall be furnished with a manual gas reset button and time delay relay to prevent pilot lights from going out in momentary power outages, located in the UDS riser.
     
  • Gas manifolds are sized for an inlet pressure of 7" WC for natural gas or 11" WC for LP.
     

Gas Equipment
All gas equipment shall conform to local-Code requirements
  • Manifold (single or looped): 3/4" to 3" IPS
     
  • 1/4 turn manual shut-off valve on manifold
     
  • Quick disconnect hoses: 1/4" to 1-1/4", up to 6' long
     
  • Quick disconnect fittings: 1/4" to 1-1/4" with 1/4 shut-off valves
     

Hot and Cold Water
  • Manifold: 3/4" to 1" IPS
     
  • 1/4 turn manual shut-off valve on manifold
     
  • Quick disconnect hoses: 1/4" to 1", up to 6' long
     
  • Quick disconnect fittings: 1/4" to 1" with 1/4 shut-off valves
     
  • Steam Supply/Steam Return
     
  • Steam Manifold: 3/4" to 3" IPS
     
  • Condensate Return Manifold: 3/4" to 2" IPS
     
  • 1/4 turn manual valves on manifolds
     
  • Quick disconnect hoses: 1/4" to 1-1/4", up to 6' long
     
  • Quick disconnect fittings: 1/4" to 1-1/4" with 1/4 shut-off valves
     

Compressed Air
  • Manifold: 1/2" to 3/4" IPS
     
  • 1/4 turn manual shut-off valve on manifold
     
  • Quick disconnect hoses: 1/4" to 1/2", up to 6' long
     
  • Quick disconnect fittings: 1/4" to 1/2" with 1/4 shut-off valves
     

Options
  • Remote Status Indicator Panel: Lighted panel indicates status of receptacles in wireway system.
     
  • Electric Outlets & Cord Sets: Water tight pin and sleeve outlets and cords.
     
  • Light & Fan Switches located in riser.
     
  • Hood Control Panel built into riser.
     
  • Prison Package
     
  • Bumper Strips
     
  • Swivel Connectors for gas equipment.
     
  • Plumbing Fixtures: Pre-plumbed and installed faucets, mixing valves, hose reels, water filtration systems.
     
  • Cable Restraints: Available for mobile equipment.
     
  • Hinged Doors for internal access to risers.
     
  • Temperature/Pressure Gauges for hot/cold water main.
     

Factory Tested
Unit(s) shall be operated, tested and set at the factory using job-site conditions for electrical and gas input. All operating and safety controls shall be tested and set at the factory.

Service and Parts
The supplier shall furnish gas piping schematics, as built wiring connection and control-circuit diagrams, dimension sheets and a full description of the unit(s). Service manuals showing service and maintenance requirements, shall be provided with each unit.
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