Raypak 130A - Manual (Page 20)

20
Post Start-Up Inspection
Feel the inlet and outlet pipes. Outlet pipe should be
only slightly warmer than the inlet. It should not be hot.
With the heater on, remove the door and make a visu-
al check of the pilot and burner. The flame should be
blue with a well-defined pattern.
A yellow or "floating" flame indicates restricted air
openings or incorrect orifice size. Should this occur,
shut the heater off and contact the installer or gas sup-
plier.
WARNING: Should overheating occur or the gas
supply fail to shut off, turn off the manual gas control
to the appliance.
4“ MAX
Fig. 22: Correct Main Burner Flame Pattern
Head of Pilot
must be above
Burner Deck.
Fig. 23: Millivolt Pilot Burner Flame
Igniter
Minimum Spark Gap is 0.15” - 0.18”
3/8” Nominally from burner surface
Fig. 24: DSI Igniter Location
Cold Weather Operation
Moderate Climate
Heater operation can continue during short-term cold
spells. When temperatures are between 0° and 32°F,
flow (continuous pump operation) must be maintained.
Cold Climate
Prolonged operation with water temperatures below
50°F is not recommended. When starting the heater
with water temperatures below 50°F, operate the
heater continuously until higher temperatures are
reached. Operating the heater for prolonged periods
with pool water below 50°F can seriously damage the
heater, and is not covered by the warranty.
For cold climate areas, please follow the winterizing
procedures listed in the next section.
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.