Reversible Water Connections - Hayward H250FDN Service & Installation Manual

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REVERSIBLE WATER CONNECTIONS:

This heater is designed so that it can be installed with the water connections located on either the right or
left side. Heaters are factory-shipped with right-side water connections. To move the connections to the left
side follow the instructions below and see Figure 15. A trained service technician should perform these steps
before the heater is installed.
Figure 15: Panel removal when reversing water connections
Rain shield assembly
Flue collector panel ()
Blank side trim panel
Upper End cap
Control box cover
Front access panel
1. Before beginning, be aware that it is not necessary to remove the water header from the heat
exchanger. When this procedure is complete, the water inlet will be located at the BACK of the
heater. The water outlet will be located at the FRONT.
. Pull the limit wires on the header side out through the grommet in the header side trim panel and
disconnect from the wiring harness.
. Remove the side trim panels ( screws each.)
. Remove upper end caps on both ends of the heater ( screws each, inside the "slots" at the top and
sides. Look for the triangles to indicate screw
5. Remove the flue cover (10 screws.)
. Remove rain shield (8 screws).
7. Remove the flue collector side panels (3 screws each, accessed from the outside of the heater.)
8. Remove the front access panel ( screws.)
9. Remove the control box cover (2 screws.)
10. Disconnect the water pressure switch leads at the switch located on the water header.
11. Disconnect the thermistor lead from the ignition control board.
1. Pull the thermistor lead out of the control box and out through the hole in the righthand side jacket.
1. Pull the leads for the pressure switch and limits into the heater through the hole in the right-hand
side jacket and run them out the hole on the upper left-hand side jacket.
14. Lift and rotate the heat exchanger. Do not flip. Use care when setting the heat exchanger in place
not to damage the combustion chamber.
15. Run the thermistor leads into the cabinet through the hole in the left-hand side jacket and through
the top hole in the control box.
1. Assembly is the reverse of steps  – 11.
locations.)
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400
Flue Cover
Heat Exchanger
ROTATE HEAT
EXCHANGER
DO NOT FLIP!
Water header
Header side trim panel
Upper End cap
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