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Section B Ventilation Method (Choose either balanced or exhaust only) nBalanced,HRV(Heat Recovery Ventilator)or ERV(Energy Recovery Exhaust only Ventilator)—cfm of unit in low must not exceed continuous Continuous fan rating in cfm ventilation rating by more than]04%. Low cfm: A High cfm: ^ A Continuous fan rating in cfm(capacity must not exceed '+ I Y continuous ventilation rating by more than 100%) Directions-Choose the method of ventilation,balanced or exhaust only.Balanced ventilation systems are typically HRV or ERV's. Enter the low and high cfm amounts.Low cfm air flow must be equal to or greater than the required continuous ventilation rate and less than 100%greater than the continuous rate.(For instance,if the low cfm is 40 cfm,the ventilation fan must not exceed 80 cfm.) Automatic controls may allow the use of o larger fan that is operated a percentage of each hour. Section C Ventilation Fan Schedule Description Location Continuous Intermittent Directions-The ventilation fan schedule should describe what the fan is for,the location,cfm,and whether it is used for continuous or intermittent ventilation.The fan that is chose for continuous ventilation must be equal to or greater than the low cfm air rating and less than 100%greater than the continuous rate.(For instance,if the low cfm is 40 cfm,the continuous ventilation fan must not exceed 80 cfm.)Automatic controls may allow the use of a larger fan that is operated a percentage of each hour. Section D Ventilation Controls (Describe operation and control of the continuous and intermittent ventilation) ERV has wall control set to 40%=124 CFM ERV has wall control set to 80%=248 CFM Directions-Describe the operation of the ventilation system.There should be adequate detail for plan reviewers and inspectors to verify design and installation compliance.Related trades also need adequate detail for placement of controls and proper operation of the building ventilation.If exhaust fans are used for building ventilation,describe the operation and location of any controls,indicators and legends.If an ERV or HRV is to be installed,describe how it will be installed.If it will be connected and interfaced with the air handling equipment;please describe such connections as detailed in the manufactures' installation instructions.If the installation instructions require sr:ecammcnd the equipment to be interlocked with the air handling equipment for proper - • operation,such interconnection shall be made and described.