<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div>Dear all,</div><div><br></div><div>ASHRAE 90.1 appendix G G.3.1.10 defines the base building pump power. I have basic questions regarding this:</div><div><br></div><div>1)<span class="tab"> Is 22w/gpm for both primary and secondary pumps put together? </span></div><div><span class="tab"><br></span></div><div><span class="tab">2)</span><span class="tab"> The user manual defines 22w/gpm as pump operating against a 75 foot head with 60% combined impellar and motor efficiency.</span></div><div><span class="tab">I work on Visual Doe. I have to input impellar efficiency and motor efficiency separately. How do i input these values?</span></div><div><span class="tab"><br></span></div><div><span class="tab">3)</span><span class="tab"> If 22w/gpm is including secondary pump, then what
will be the head and efficiencies for primary pump and secondary pump?</span></div><div><span class="tab"><br></span></div><div><span class="tab">4)</span><span class="tab"> The condenser water pump power is 19 w/gpm. What is the head, impellar efficiency and motor efficiency?</span></div><div><br></div><div>Looking forward for your replies.</div><div><br></div><div>Regards,</div><div>Rathnashree<br><span class="tab"></span></div><div><span class="tab"><br></span></div></div></body></html>