Oklahoma Administrative Code › Title 310 - Oklahoma State Department of Health › Chapter 661 - Hospice › Subchapter 8 - Hospice Inpatient Facility Physical Plant › Section 310:661-8-11 - Temperature and ventilating systems

Current through Vol. 41, No. 20, July 1, 2024
(a)
				An indoor design temperature of 75oF.
				(24oC.) (winter design conditions) shall be provided
				for all occupied areas.
(b) All air
				supply and air-exhaust systems shall be mechanically operated. All fans serving
				exhaust systems shall be located at the discharge end of the system. The
				ventilating systems shall comply with the requirements of the appropriate
				edition of the International Mechanical Code.
(c) Outdoor air intakes shall be located not
				less than ten feet (10' 0") from exhaust outlets of ventilating systems,
				combustion equipment stacks, plumbing vent stacks, or from areas which may
				collect vehicular exhaust and other noxious fumes. The bottom of outdoor air
				intakes serving central systems shall be located as high as practical but not
				less than three feet (3' 0") above ground level, or if installed above the
				roof, one foot (1' 0") above roof level.
(d) Corridors shall not be used to supply air
				to or exhaust air from any room, except that air from corridors may be used to
				ventilate bathrooms, toilet rooms, and janitors' closets.
(e) All central ventilating or air
				conditioning systems shall be equipped with filters. The filter bed shall be
				located upstream of the air conditioning equipment, unless a prefilter is
				employed. In this case, the prefilter shall be upstream of the equipment and
				the main filter bed may be located further downstream.
(f) All filter efficiencies shall be average
				atmospheric dust spot efficiencies tested in accordance with ASHRAE Standard
				52-68. A manometer shall be installed across each filter bed serving central
				air systems. The filter efficiencies for central ventilation and air
				conditioning system should follow the table shown on Appendix A.
(g) Exhaust hoods in food preparation centers
				shall be in compliance with NFPA 96 and the International Mechanical Code
				(IMC).
(h) Boiler rooms shall be
				provided with sufficient outdoor air to maintain combustion rates of equipment
				and to limit temperatures in working stations to
				97oF. (36oC.), Effective
				Temperatures (ET) as defined by ASHRAE "Handbook of Fundamentals", without
				creating negative air pressure in any room housing fire equipment.
(i) Where individual mechanical exhaust
				systems are used to exhaust patient toilets or bathrooms, the individual
				ventilation fan shall run continuously. All mechanical ventilating equipment
				including under window and exhaust systems shall operate
				continuously.
(j) Wall or baseboard
				electrical heaters shall not be used.
(k) Detectors in central ventilating systems
				shall be in accordance with NFPA 90A.
(l) All ducts shall be in concealed
				spaces.
(m) All smoke dampers on
				any one air conditioning system shall be controlled by unit mounted return air
				and supply air smoke detectors, which will act to close all of the smoke
				dampers on that system and stop the fan. Smoke dampers shall also close and the
				fan shall stop when the fire alarm system is activated and/or the sprinkler
				system is energized.
(n) All
				isolation rooms shall have all air directly exhausted to the exterior without
				recirculation. There shall be a negative pressure relationship between the
				patient room and adjacent areas. The differential pressure shall be a minimum
				of 0.01" water gage (2.5 Pa). If alarms are installed, allowances shall be made
				to prevent nuisance alarms of monitoring devices.
(o) Ventilation for all isolation rooms shall
				provide for a minimum twelve (12) air changes per hour including two (2) air
				changes per hour of outside air. Patient sleeping rooms shall provide a minimum
				of two (2) air changes per hour with at least two (2) of these air changes
				being outside air. Soiled holding and workroom areas shall have a minimum of
				ten (10) air changes per hour. All other rooms shall comply with the
				ventilation requirements of the International Mechanical Code as adopted by the
				State of Oklahoma.
Added at 21 Ok Reg 1303,
				  eff 5-27-04