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Freeze Protection
The Raypak electronic temperature control includes a
freeze protection feature. In the event the temperature
drops below 40° F at any of the boiler temperature
sensors, the pump is turned on and will remain on until
the temperature at all boiler sensors rises to 45° F.
Controls
The Raypak electronic temperature control is pro-
vided to maintain the desired system water
temperature. The control has various modes of opera-
tion which are listed below.
2. Periodically check venting system. The heater’s
venting areas must never be obstructed in any
way and minimum clearances must be observed
to prevent restriction of combustion and ventilation
air. Keep area clear and free of combustible and
flammable materials.
3. Do not locate adjacent to any window, door walk-
way, or gravity air intake. The vent must be
located a minimum of 4 ft horizontally from such
areas.
4. Install above grade level and above normal snow
levels.
5. Vent terminal must be at least 3 ft above any
forced air inlet located within 10 ft.
6. Adjacent brick or masonry surfaces must be pro-
tected with a rust-resistant sheet metal plate.
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