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_ _ .. ��.5.� cti�PP�w� � � 1345.0120 HEATING, VENTILATING, AIR CONDITIONING 1345.0120 SUBMITTAL AND APPROVAL OF PLANS. Plans and specifications shall be submitted to the administrative authority as required. See specific chapters for further detail as to plans and specifications where required. ; Statutory Authority: MS s 16.85 1345.0130 SAFETY HAZARD. Where a safety hazard exists on a premise by reason of an existing installation or lack of proper equipment or material thereof, the owner or his agent shall be responsible for making such corrections as may be necessary to abate such hazard and bring the installation within the provisions of this code. Statutory Authority: MS s 16.85 1345.0140 BOILER AND FURNACE EQUIPMENT ROOM SIZE. Boilers and furnaces shall not be installed in confined spaces such as alcoves or closets unless specifically approved for such installation and then only if installed in accordance with the approval. Boilers and furnaces shall be installed in rooms that are large in comparison to the size of the appliance and shall provide proper clearance for accessibility for servicing and maintaining such equipment. Boiler and furnace rooms in other than one- and two-family dwellings shall be such that they have an area of at least ten times the area occupied by the ' boiler and eight times the area occupied by the furnace. If additional appliances or equipment are to be located in the boiler or furnace room, additional area shall be provided equal to area occupied by such equipment plus required clearances. At least three feet clear space shall be provided in front of all zone valves, I controls, etc. for access and servicing. Statutory Authority: MS s 16.85 I LOAD CALCULATIONS I' 1345.0200 HEAT LOSS CALCULATION REQUIRED. Before designing a heating system, a heat loss calculation must be made of the maximum probable heat loss of each room or space to be heated, based on maintaining a selected indoor air temperature during periods of design outdoor weather conditions. These heat losses may be divided into groups as follows: � A. the transmission losses or heat transmitted through the confining i walls, floor, ceiling, glass, or other surfaces; B. the infiltration losses or heat required to warm outdoor air which leaks in through cracks and crevices around doors and windows, or through open j doors and windows, or heat required to warm outdoor air used for ventilation; j and � C. the design data and calculations for heating loads shall be in accordance with procedure outlined in ASHRAE Fundamentals and Equipment for the latest publication after acceptance of this code, or Manual J, Load Calculations, National Warm Air Heating and Air Conditioning Association. Statutory Aut6ority: MS s 16.85 , 1345.0210 DEFINITIONS. Subpart 1. Scope. The following terms shall have the meanings given � � them. Subp. 2. British thermal unit. "British thermal unit (Btu)" means, I approximately, the heat required to raise the temperature of a pound of water �� from 59 degrees Fahrenheit to 60 degrees Fahrenheit. 6