G
Plumbing
Field Verification: The Rater must complete field verification and take representative photos of all hot water pipes in the home.
Measure G1.2 Field Verification: The Rater must complete the following test:
a. |
Put a bucket marked at 0.6 gallons under the farthest fixture from the hot water source. |
b. |
Turn on the hot water and read the temperature. |
c. |
When the water in the bucket reaches the 0.6 gallon mark, read the temperature again. |
d. |
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.
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.
DRAFT
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: G2.1. WaterSense Showerheads with Matching Compensation Valve( 2 Points)
Showerheads must be WaterSense ® certified with a flow rater of ≤ 2.0 gallons per minute and installed with matching compensation valve. The automatic compensation valve must be rated for the minimum flow rate of the showerhead. The automatic compensation valve must meet one of the following standards:
DRAFT GreenPoint Rated New Home Rating Manual 44 Version 6.0, September 2013
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