Hayward H250FDN uhs_qrg_20f0 - Page 1

Quick Reference Guide Universal H-Series Power Selection Prior to wiring the UHS make sure the correct voltage selector plug is inserted into the fused wiring panel. 110 - 130VAC, 2A, 50/60Hz OR 220 - 250VAC, 1A, 50/60Hz 120VAC/240VAC Power & Remote 240V FACTORY WIRED 120V SEE MANUAL L1 L2 G L1 N G 120 V 240 V 2-Wire Remote COM POOL/ SPA 3-Wire Remote SPA COM POOL 240VAC is the factory default RED WHT ORG Heat Exchanger Flow Requirements Model Min H150FD H200FD 20 GPM Model Min H250FD H300FD 25 GPM Model Min H350FD H400FD 30 GPM Model Min H500FD 40 GPM To preserve heat exchanger, set ow rates above minimum (accounting for a dirty lter). Maximum water ow = 125GPM Gas Pressure Testing Natural Gas Manifold Gas Pressure SAMPLE CERTIFIED 2.0" Maximum inlet gas pressure 10.5" Minimum inlet gas pressure 4.5" Outlet of Gas Valve Static Pressure Load Pressure Propane Manifold Gas Pressure 7.0" PLE CERTIFIED Maximum inlet gas pressure 13.0" M Minimum inlet gas pressure SA 10.0" Using a Manometer, take a measurement at the inlet port on the gas valve for both Static Pressure (heater o ) & Load Pressure (heater red); readings should be within the values on the heater data plate. Then measure the Manifold Pressure from the outlet port on the gas valve. Inlet Port Outlet Port