Raypak 266, Installation And Operation Manual

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CLEARANCES
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Space required: See page 12.
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Minimum and service clearances: See page 7 for
clearances table. Note that local codes prevail.
PIPING
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Pressure relief valve: See page 20 for recommended
PRV orientation.
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Flow rates: See page 17 for flow rate values.
GAS
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Distance to regulator (pipe lengths) and gas inlet
sizes: See page 17.
†
Required pressure for Natural Gas:
Min = 6" WC, Max = 10.5" WC
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Required pressure for Propane Gas:
Min = 12" WC, Max = 13" WC
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Sediment trap is required for all installations.
See page 15.
WATER CHEMISTRY
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Water chemistry requirements: See page 5.
POWER
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Supply voltage: See page 23 for acceptable input
voltages.
VENTING
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Materials: See pages 11 and 14.
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D-2 Power Vent Kit: See page 14.
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Indoor Stack: See page 11.
CONTROLS INTERFACE
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Wiring diagrams: See page 24 and 25.
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User interface: See pages 26 and 27.
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Remote operation: See page 30.
QUICK START GUIDE
Revision 35 reflects the following changes:
Model description amended on page 1. Note added on page 3. Text added to point 6 on page 6. Table I updated on page 13. Table
information and caption changed on page 18. 3rd Note added on page 18. Text correction 1st paragraph of "Brass Headers (ASME
Models)" on page 18. Text revision in Figure 26 on page 19. 2nd Note text revised on page 19. 1st paragraph revised in "Pressure
Relief Valve Installation" on page 20. Point 6 revised in "Heat Exchanger Removal" on page 34. Point 4 in "Desooting Procedure"
revised on page 35. Section heading "Unitherm Governor (U.G.) Replacement" added on page 35. Point 2 revised in "Winterizing the
Pool and Spa Heater" on page 39. Updated illustration on page 46. Updated parts list on page 49.
6000.59AH_Atmospheric.indd 2 12/17/2019 2:12:45 PM