Winterization; Removing The Drain Plug; Spring Start-Up - Hayward H250FDN Service & Installation Manual

WINTERIZATION:

In moderate climates, the heater can continue to operate during short-term cold spells. Do not use the
heater to maintain the water temperature just above freezing or for freeze protection. Care must be taken to
avoid freeze-up in the heater. When it is used during freezing weather, the pump must run continuously. The
heater is not warranted against freeze-ups. In regions where freezing temperatures are encountered, all water
must be drained from the heater when it is out of service, to prevent damage to the heater and piping. Drain-
ing the heat exchanger is recommended as part of the season's shutdown procedures.
ATTENTION: A heater damaged by freezing is not covered under the Haywawrd warranty.

REMOVING THE DRAIN PLUG:

1. This procedure is for above-pool installations only.
. See Figure  for the location of the drain valve on the header.
. Set the keypad to "STANDBY".
. Turn the electricity "OFF" at the circuit breaker.
5. Turn the heater gas valve "OFF" using the knob on the valve.
. Turn the heater's gas supply "OFF" at the main shut-off valve outside the heater cabinet.
7. Be sure the circulating pump is "OFF".
8. Remove the drain plug from the header and allow all water to drain from the heater.
9. Reinstall the drain plug.

SPRING START-UP:

1. Inspect and clean the heater, being sure the heater is free of leaves and debris prior to startup.
. Be sure inlet and outlet piping are properly attached to the heater and the drain valve is closed.
3. Turn the filtration system pump "ON" and allow the system to run long enough to purge all the air
from the lines.
Figure 36: Drain plug and relief valve location
Relief valve location
(if required)
Header
Drain plug
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com
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