Hayward HeatPro Heat Pro Installation - Page 13

Page 13 of 20 HEATPRO HEAT PUMP HP13023770 Rev: E NOTICE - If the heat pump runs for more than a couple of minutes without the filter pump running, the unit can become overheated and damaged. After adjusting the pressure, turn off pool pump to ensure the heat pump does not run. It is possible for water to flow through the heat pump without operating the heat pump. Installation of Multiple Heat Pumps If a heat pump pool heater sizing calculation indicates that two or more heat pumps are required to heat a single pool, the units are to be installed for parallel operation. Series plumbing reduces efficiencies of each heat pump downstream. The figure below shows installation of multiple units in parallel. Contact Hayward Technical Service if installing more than two units. Notes: 1. Maintain 4-6 ft [1,2-1,8 m] clearance between the units, 2 ft [0,6 m] around them, and at least 6 ft [1,8 m] over them. Refer to the pages 7 & 8 for more information. 2. Install bypass loops for each unit. 3. Install union style fittings from the heat pump KIT adjacent to the unit to facilitate easy service procedures. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908.351.5400 www.haywardpool.com