SECTION: 23 80 20.00 10 GAS-FIRED HEATING EQUIPMENT
 
Criteria

  1. UFGS 23 80 20.00 10 GAS-FIRED HEATING EQUIPMENT
 
Changes or Criteria Notes to Unified Facilities Guide Specifications (UFGS)
Paragraph # and Title (if any) Note to Designer Change Text
2.3.1 Direct Fired Make-up Air Heaters Add the paragraph to the beginning of the section Installation of direct fire make-up air heaters requires written approval by the DPW Mechanical Systems Manager. Indirect fire make-up air heaters are the preferred option.
2.3.2  Indirect Fired Make-Up Heaters Add the change text to the paragraph Heat exchanger shall be stainless steel.
2.3.3 Unit Heaters Add the change text to paragraph as applicable provide stainless steel heat exchangers
2.3.6 Infrared Heaters Modify paragraph with change text Furnish heaters conforming to requirements of ANSI Z83.19/CAS 2.35 and vented type. Vented heaters must be vented to the outside atmosphere. Heater style must be tubular type. Reflector shape may be as indicated by the manufacturer. Installation of direct fire IR heaters requires written approval by the DPW Mechanical System Manager.
2.4  Thermostats Add the paragraph to the section Infrared heaters with a heating input greater than 40 MBh shall be controlled by a standalone infrared heating control system or direct digital control (DDC) system. Individual black bulb sensors shall be installed in the space for each heater with a direct line-of-sight to the infrared heater being controlled.  The control system shall have a set point range of 40 to 75 degrees F.  No temperature adjustability shall be made available in the space.  Control wiring required to complete the space temperature control system shall be included. 

 
Design Requirements
 
 
Notes to Designers on Drawing Content
 
 
Standard Details
 
 
Applicable Points of Contact
Design Standards