ENERGY STAR Multifamily High Rise Program Testing and Verification Protocols Webinar – Part II August 2011

Testing and Verification Protocols 1.0 Appliances 2.0 Domestic Water Heating 3.0 Envelope 4.0 Garages 5.0 Heating and Cooling 2

1.1 ENERGY STAR Appliances 3 Sampling: One representative photo of each appliance type, make and model Visual Inspection Data Sheet  Test Procedure  Instrumented Measurement  Third-Party Commissioning

2.0 & 5.0 DHW, Heating and Cooling Systems 4 DHW/Heating/Cooling Plant: System size, type, design, and rated efficiency, sizing calculations Distribution System: Piping and/or ductwork configuration, mixing valves, zoning, insulation requirements Controls: System controls and settings Terminal Units (Heating & Cooling): Type, size, design, location, controls Heat Rejection (Cooling): Type, size, location and efficiency Visual Inspection Data Sheet Test Procedure Instrumented Measurement Third-Party Commissioning Sampling: 100% of central primary equipment RESNET for distributed systems, plumbing fixtures and delivery temperatures

2.0 & 5.0 DHW, Heating and Cooling Systems 5 Schedule: Commissioning occurs throughout Training occurs post QA and verification GC to verify performance data before accepting deliveries Minimum of one (1) on-site inspection, ASAP after installation Sample Gant Chart

2.0 & 5.0 DHW, Heating and Cooling Systems 6 Requirements for DHW, heating and cooling systems: Verify size, type, design, controls & rated efficiencies Size heating and cooling equipment using ACCA Manuals J, D & S Cx agent or the responsible party may perform inspections Provide Cx results via T&V Worksheets and the Photo Template SSCs can be only be used with qualified 3 rd parties Equipment Faceplate System controls & settings

2.0 & 5.0 DHW, Heating and Cooling Systems 7 Requirements for DHW, heating and cooling systems (cont’d): Pipes 1.5” diameter or less have 1” insulation, pipes greater than 1.5” diameter have a minimum of 1.5” of insulation. Location and configuration of combustion/intake air venting Training & Operating Manuals Pipe Insulation Operating Manual

2.0 Domestic Water Heating 8 Requirements for domestic water heating systems: Set to deliver temperatures within the °F range. Mixing valve and temperature set point. (central systems) Storage tank insulation (central systems) Plumbing fixture flow rate (GPM), quantity and location Electronic Mixing Valve Plumbing Fixtures

5.0 All Heating and Cooling Systems 9 Requirements for heating and cooling systems: R-6 duct insulation in unconditioned space, R-8 for Prescriptive Path Duct sealing details must go in CDs! Visual inspection Flex duct must meet SMACNA standards (see Appendix C) Non-continuous OA systems must have motorized damper Outdoor Air Damper

5.0 All Heating and Cooling Systems 10 Requirements for heating and cooling systems: When applicable, obtain and keep the following information: –Field measured refrigerant charge –Field measured airflow over evaporator/condenser coil –Nameplate efficiency –Nameplate heat exchange capacity Air Flow Report

5.1&5.2 Central Heating and Cooling Systems (5+ Units) 11 Requirements for central heating and cooling systems: Reverse return and/or sized based water velocity < than 4 ft/s Size circulating pumps with Chapter 43 of ASHRAE or equivalent Circulator pressure controls adjustments (optional) Terminal equipment must be separated from riser/loop & shall be controlled by a thermostat within the same apartment Reverse Return Piping Terminal devices and controls

5.1 Central Heating Systems (5+ Units) 12 Requirements for central heating systems: Proper installation of gauges, sensors and set points Verify supply & delivery temperature Return water temperature for condensing boiler systems Outdoor reset, warm weather shut down, night setback Supplemental heating in unconditioned spaces must be modeled Gauges and SensorsOutdoor Reset

5.2 Central Cooling Systems (5+ Units) 13 Cooling Tower VFDTemperature Sensor Requirements for central cooling systems: Cooling tower fan motor must be equipped with VFD controlled by a temperature sensor on the condenser water supply pipe.

5.3&5.4 Distributed (Individual Apt) Heating and Cooling Systems 14 Requirements for distributed heating & cooling systems: Design to ACCA Manuals J, D and S or equivalent procedure ENERGY STAR Home Rater and Contractor HVAC Checklists (optional) Verify bedrooms have been provided with pressure- balancing solution Duct leakage testing Duct Leakage Testing

15 Heating and Cooling Duct Leakage Testing Single point measurement with duct leakage tester Leakage size is dependent on floor area For in-unit systems total maximum duct leakage –≤8 CFM25 per 100 ft 2 of conditioned floor area for units smaller than 1200 ft 2 –≤6 CFM25 per 100 ft 2 of conditioned floor area for units larger than 1200 ft 2 Unit SizeStandardExample SizeExample CFM25 Max <1200 SF8 CFM25/100 SF1000 SF80 >1200 SF6 CFM25/100 SF1300 SF78 5.3&5.4 Distributed (Individual Apt) Heating and Cooling Systems

5.3 Distributed (Individual Apartment) Heating Systems 16 Requirements for distributed heating systems: Proper installation of gauges, sensors and set points Outdoor reset, warm weather shut down, night setback AquastatNight Setback

5.4 Distributed (Individual Apartment) Cooling Systems 17 A/C Sleeve Sealed at Façade A/C Sleeve Sealed at Structural Wall Requirements for distributed cooling systems: AC penetration must be sealed air-tight AND weather-tight

3.1 Wall Construction & Insulation 18 Visual Inspection Data Sheet  Test Procedure  Instrumented Measurement  Third-Party Commissioning Sampling: Each unique wall assembly – type, thickness, location, coverage, installation Below grade walls Above grade walls’ exterior insulation Above grade walls’ interior insulation 15% of each wall assembly Image courtesy RESNET RESNET Grade I insulation

3.1 Wall Construction & Insulation 19 Use the T&V worksheets to identify all layers of insulation during plan review and during your inspection in the field

3.1 Wall Construction & Insulation Below Grade Wall Insulation 20 Insulation around corner Assembly view Indicate thickness

3.1 Wall Construction & Insulation Exterior Wall Insulation 21 Insulation installed at adjacent building Photo with measuring tape indicating thickness Exterior insulation assembly

3.1 Wall Construction & Insulation Interior Wall Insulation 22 Mineral wool installed evenly without gaps Batt insulation installed without compression or gaps; seams taped

3.2 Roof Construction & Insulation 23 Visual Inspection Data Sheet  Test Procedure  Instrumented Measurement  Third-Party Commissioning Sampling: Each roof assembly At drains At perimeter

3.3 Floor Construction & Insulation 24 Visual Inspection Data Sheet  Test Procedure  Instrumented Measurement  Third-Party Commissioning Sampling: At least 15% of each unique floor assembly - insulation type, thickness, location, coverage, installation Above unconditioned space Below grade slab floor insulation Slab-on-grade insulation

3.4 Window Selection, U and SHGC 25 Visual Inspection Data Sheet  Test Procedure Instrumented Measurement  Third-Party Commissioning Sampling: At least one of each different type of window installation and energy performance specification All windows in a representative apartment from each type Use low-e sensor

3.4 Window Selection, U and SHGC 26 Ample sealing around window frame Air barrier wrapped inside rough opening NFRC label indicating SHGC, U-value, ENERGY STAR

3.5 Exterior Door Selection/Vestibules 27 Sampling: 100% of entryways and vestibules At least 50% of common exterior doors Visual Inspection Data Sheet  Test Procedure Instrumented Measurement  Third-Party Commissioning Vestibule installed per code Weatherstripping with rigid fastener and replaceable foam gasket

4.1 Garage Heating & Air-Sealing 28 Visual Inspection Data Sheet  Test Procedure  Instrumented Measurement  Third-Party Commissioning Sampling: Not allowed Inspect 100% of connections between the garage and conditioned space for air sealing Inspect 100% of heating elements and controls Image courtesy PNNL & ORNL

The End Questions? Contact: 29