Chlorination And Water Chemistry; Cold Weather Operation; Cold Climate; Winterizing The Pool And Spa Heater - Rheem Raypak X94 Professional SR-410 Manuel D'installation Et D'utilisation

Chlorination and Water Chemistry

See section "Water Chemistry" on page 5.

Cold Weather Operation

Important Freeze Information
MODERATE CLIMATE: Heater operation can continue
during short-term cold spells. When temperatures are
between 0°F (-18°C) and 32°F (0°C), flow (continuous
pump operation) must be maintained.
CAUTION: Do not use the heater to maintain water
temperatures just above freezing or for freeze protection.
When heater is used during freezing weather, care must
be taken to avoid freeze-ups. Continuous pump operation
is a must. Additional protection may be required. The
heater is not warranted against freeze-ups.
COLD CLIMATE: Prolonged operation with water
temperatures below 50°F (10°C) is not recommended.
When starting the heater with water temperatures below
50°F (10°C), operate the heater continuously until higher
temperatures are reached. Operating the heater for
prolonged periods with pool water below 50°F (10°C)
can seriously damage the heater, and is not covered by
the warranty. For cold climate areas, please follow the
winterizing procedures listed below.

Winterizing the Pool and Spa Heater

Heaters installed outdoors in freezing climate areas may be
shut down for the winter. Observe the following procedure
for winterizing the heater:
1. Turn off gas valve, manual gas valve, and electrical
supply to the heater.
2. Disconnect the field supplied condensate drain line
from the condensate trap located below the inlet/
outlet water connections.
3. Remove the access panel below the inlet/outlet water
connections and connect a hose to the drain valve.
Direct the hose discharge to a safe drainage location.
4. Open the drain valve and pull the PRV handle or
open the union at the water outlet connection to allow
the heater to drain.
5. Close the drain valve and disconnect the hose.
6. Remove the cap from the condensate trap.
Disconnect, remove and drain the condensate trap
and then re-install it.
7. Re-install the lower access panel and re-attach the
condensate drain line to the trap.
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