DRAFT GreenPoint Rated Existing Home Rating Manual version 6.0 | Page 59

G ? ? ? ? Plumbing Put a bucket marked at 0.6 gallons under the farthest fixture from the hot water source. Turn on the hot water and read the temperature. When the water in the bucket reaches the 0.6 gallon mark, read the temperature again. Verify that the temperature has increased by at least 10 degrees. The Rater must take representative photos of the test at each fixture supplied with hot water, and document the results of the test. Measure G1.3 Field Verification: The Rater will complete field testing as described previously. The Rater will take representative photos either of the test at each fixture supplied with hot water or of field verification, and document the results of the test. The Rater must collect plumbing plans and pipe specifications. For each fixture supplied with hot water, the Rater must collect calculations of the volume of water in each pipe based on the pipe diameter and the length of the run for each fixture. Measure G1.4 Field Verification: The Rater will complete field compliance verification. Documentation: The Rater or homeowner may create a table of sinks and documented times as verification of the applicability of the benefit of an on-demand control. INTENT To reduce the water wasted at plumbing fixtures while waiting for hot water to arrive. To save energy for heating water. G2. INSTALL WATER-EFFICIENT FIXTURES CRITERIA FOR QUALIFICATION Up to five points of credit are available for the use of fixtures and accessories as described in the following measures. An accessory is defined in ASME 112.18.1/CSA B125.1 as a component that can, at the discretion of the user, be readily added, removed, or replaced and, when removed, does not prevent the fitting from fulfilling its primary function. For the purpose of this specification, an accessory can include (but is not limited to) flow restrictors, flow regulators, aerator devices, and laminar flow devices. No fixture or accessory shall have the capabilities to override the appropriate flow rates at the appropriate pressure as established in this measure. This includes any instructions or indications on packaging directing the user to an alternative water-use setting. The criteria that must be met by the fixtures and accessories are as follows: GreenPoint Rated Existing Home Rating Manual Version 6.0, September 2013 © Build It Green 53