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Raypak B-206A-MN-C ASME Quick Reference Manual
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Raypak B-206A-MN-C ASME Quick Reference Manual

Raypak B-206A-MN-C ASME Quick Reference Manual

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Summary of Contents for Raypak B-206A-MN-C ASME

  • Page 1 Digital Gas Heater Tool Box Quick Reference Guide...
  • Page 2 Water Chemistry For your health and the protection of your pool equipment, it is essential that your water be chemically balanced The following levels must be used as a guide for balanced water. Recommended Levels Fiberglass Pools Fiberglass Spas Other Pool & Spa Types Water Temp.
  • Page 3 Model & Serial number located on rating plate. Model & Serial number located on carton label. Before you call Raypak service, make sure you have the MODEL NUMBER and SERIAL NUMBER.
  • Page 4 Minimum Clearances INDOOR View in. (mm) TOP (above Drafthood) 30 (762) WATER SIDE 18 (456) OPPOSITE SIDE 6 (152) FRONT (Alcove) Open BACK 6 (152) FLOOR OUTDOOR View in. (mm) TOP (Stackless) 36 (914) WATER SIDE 18 (456) OPPOSITE SIDE 6 (152) BACK 6 (152)
  • Page 5 Minimum Clearances* – Outdoor DO NOT install near sprinklers. 4' (1.2 m) Minimum DO NOT install within 4' (1.2 m) 3 feet of a heat pump Minimum pool heater or air 4' (1.2 m) conditioning Minimum condensing unit. 3' (0.9 m) Minimum *Check state and local codes before proceeding.
  • Page 6 Minimum Clearances – Indoor The heater must have both combustion air and 8' (2.4 m) ventilation air. OR LESS VENT CAP 2' MIN • Ventilation air opening 12”(305 mm) max from the ceiling (0.6 m) • Combustion air opening 12”(305 mm) max from the floor 2' MIN (0.6 m) All air from outdoors, each opening shall have a net free area as shown in table.
  • Page 7 Gas Line Sizing Maximum Equivalent Pipe Length Natural Gas 1000 BTU/FT 0.60 Specific Gravity @ 0.5 in. WC Pressure Drop Propane Gas 2500 BTU/FT 1.53 Specific Gravity @ 0.5 in. WC Pressure Drop Input 3/4” 1” 1-1/4” 1-1/2” Model (KBTU) 206/207 199.5 266/267 266.0 336/337 332.5 406/407 399.0 EFFECTS OF LOW GAS PRESSURE • Pulsating burner flame • Exposure to condensation •...
  • Page 8 Gas Pressure Test INLET GAS PRESSURE Unit Supply Pressure Manifold MANIFOLD Type Pressure Min. Max. GAS PRESSURE 6” 10.5” 4.0” Low NO 5” 10.5” 3.1” 12” 13” 10.5” VALVE • Supply pressures given are under load (dynamic) • 1 PSI = 27.7” Water Column BURNER SLACK TUBE MANIFOLD...
  • Page 9 Gas Line Sediment Trap Sediment Trap should be located as close to the inlet of the appliance as practical. INCORRECT CORRECT PROVIDE CHANGE OF DIRECTION IN GAS FLOW COCK (WITHIN 6 FEET OF THE HEATER) COCK (WITHIN 6 FEET OF THE HEATER) UNION VALVE UNION...
  • Page 10 Power Connections Note: Heater will not work properly if wired to a 208VAC power source.
  • Page 11 Circuit Board LCD Display is removable and serviceable. The LCD P/N is 013640F Printed circuit board. Fully updated and backwards compatible to all digital heaters manufactured since 2004.
  • Page 12 Circuit Board – Ignition and Temperature Control Safety Circuit Valve Fireman/ Hi Limit Clock Roll Out Switch Low NO Tab and Fan Wiring Hi Limit Connection (Model 207-407 only) Vent 5 Amp 32V Fast Acting Automotive Fuse P/N 013733F 24 VAC Power Supply Ground...
  • Page 13 Low NO PC Board - Tab Configuration NOTE: If TAB is NOT broken and the board detects power at Sp a S e t 104F Low NO connector, Low NO Tab Fault is displayed and the No x Ta b Fa u l t heater will not operate.
  • Page 14 Wiring Diagram – Atmospheric FOR 115 AC VOLT OPERATION GROUND FACTORY WIRED 24 VAC FOR 240 VOLT TRANS “PRS” PRESSURE SWITCH POWER SWITCH (IN/OUT HEADER) “HL1” HI LIMIT (IN/OUT HEADER) “HL2” HI LIMIT (INLET/OUTLET HEADER) “ROL” ROLL-OUT SWITCH V/BK R/BK Y/BK SPLICE HERE FOR VENT (OPTIONAL)
  • Page 15 Wiring Diagram – Low NO HONEYWELL SWITCH GAS VALVE V/BK V/BK Y/BK R/BK P/PV C/ MV Y/BK V/BK M/MV G/BK Y/BK SWITCH V/BK FOR 120 AC BURNER TRAY INVENSYS V/BK VOLT GAS VALVE “PRS” PRESSURE SWITCH OPERATION V/BK (IN/OUT HEADER) Y/BK RETURN (NEUTRAL)
  • Page 16 Wiring Diagram – Common Wiring REMOTE (OPTIONAL) POOL BK/O O/BK (24VAC) FLOW SWITCH (OPTIONAL) PILOT W/BL HIGH TENSION TEMP BURNER TRAY SENSOR...
  • Page 17 Start-Up Operating Displays Re v i s i o n 1 . O f f W a t e r Te m p O f f Po o l S e t Sp a S e t Po o l S e t 104F W a t e r Te m p W a t e r...
  • Page 18 Operating Displays Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F W a t e r Te m p S p a r k W a t e r Te m p S p a r k Sp a S e t...
  • Page 19 Sequence of Operations SUPPLY (Power to Heater) 1. 120/240 VAC from circuit breaker/time clock to transformer. 2. 24 VAC out of transformer, toggle switch ON. 3. 24 VAC to PC board, fuse, interface controller. 4. LCD display ON. APPLY 24 VAC to Ignition/Gas Control 1.
  • Page 20 Remote Wiring Connections and Setup Pool 24V Hot Part Number 071494 7-Pin Remote Wire Harness Wire Harness Connection A remote may be wired to provide an “On-Off” switching function (two wire) or as a three-way “Pool-Off-Spa” selector switch (three wire). Modern automation systems use a two-wire configuration and can operate the heater in either Pool or Spa mode (See wiring, page 16). Water temp will not exceed the setting on the heater, regardless of the automation set temp. To access the full range of temp settings with the remote, the heater should be set (at the control pad) to the maximum safe temperature.
  • Page 21 Remote Operation Re m o t e Re m o t e Po o l 104F Re m o t e Sp a Sp a S e t 104F 104F W a t e r Te m p W a t e r Te m p W a t e r Te m p...
  • Page 22 Remote Error Displays Ex i t Re m o t e Mo d e Sp a S e t 104F Sp a S e t 104F A d j u s t Te m p R e m o t e E r r o r W a t e r Te m p...
  • Page 23 Microcontroller – Self-Diagnostics Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F Lo w V o l t a g e In t e r n a l F a u l t EEPROM Fa u l t Can Be Displayed in Pool, Spa, Remote &...
  • Page 24 Temperature Sensor Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F W a t e r Te m p S p a r k W a t e r Te m p S p a r k 1.
  • Page 25 Temperature Sensor – Lockout Po o l S e t Sp a S e t 104F W a t e r Te m p L o w T e m p Lo c k o u t 1. Low-Temp Lockout - Inlet Water Temperature below 36ºF (2ºC). Heater will not operate (Prolonged operation with inlet temperatures below 50ºF (10ºC) will create condensation that will damage the heater).
  • Page 26 Safety Circuit Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F W a t e r Sw Op e n L i m i t F a u l t L i m i t F a u l t...
  • Page 27 Safety Circuit – Components Part numbers below apply to polymer header models. For part numbers applicable to specific models, refer to the parts list in your Instructions and Operation manual. Part #006715F Part #005899F Part #006035F Bypass Assembly Atmospheric Rollout Swicth Low NO Rollout Switch Part #006725F Part #006719F Limit Switch Unitherm Governor...
  • Page 28 Safety Circuit Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F C l o c k Fi r e m a n V e n t F i e l d F l o w F i e l d 1.
  • Page 29 Ignition Sequence – Natural Gas Sp a S e t 104F Sp a S e t 104F (1a & 1b Displays alternate every two seconds) I g n i t i o n Fa i l u r e P i l o t S e n s e d 1.
  • Page 30 Ignition Sequence – Propane Sp a S e t 104F Sp a S e t 104F (1a & 1b Displays alternate every two seconds) I g n i t i o n L o c k o u t P i l o t S e n s e d 1.
  • Page 31 Temperature Sensor – Lockout Sp a S e t 104F Sp a S e t 104F Sp a S e t 104F F l a m e w / o Ou t p u t Fa u l t Ou t p u t Fa u l t 1.
  • Page 32 Low NO PC Board – Configuration Note: See page 51 Sp a S e t 104F Sp a S e t 104F for air pressure switch F a n 5 M i n D e l a y F a n Lo c k o u t information.
  • Page 33 Service Displays Fl a m e S t r e n g t h Fl a m e S t r e n g t h Su p p l y V o l t a g e Ru n T i m e 100 h G o o d W e a k...
  • Page 34 75F S 75F S W a t e r Te m p “End-Of-Line” is a test conducted by Raypak before the heater is shipped. We connect water, gas and power to every heater to ensure they are firing and functional. 1. To initiate the EOL Test press and hold the MODE button at power-up.
  • Page 35 Touchpad Evaluation 80F S If EOL Self-Test was NOT Initiated by a service technician, display may indicate a STUCK MODE button. Keypad 1. Disconnect blue ribbon connector, P5 from touchpad. Cycle P5 Connector Pins heater on and off (power switch). 2. To select MODE, jump COM to MDE, each touch alternates MODE, OFF - Spa - OFF - Pool.
  • Page 36 Service Display – Fault History F a u l t s L a s t Fa u l t Fa u l t F a u l t s C l e a r e d I g n i t i o n L o c k o u t W a t e r Sw Op e n...
  • Page 37 Program Mode Allows Customizing SOFTWARE Program 1. Set Factory Defaults 2. Clear Service Faults 3. Fahrenheit/Celsius Program 4. Maximum Spa Set Button 5. Maximum Pool Set To Initiate Programming Mode: 1. Select OFF mode of operation Se t F a c t o r y 2.
  • Page 38 Program Mode Select Program Item with MODE Button C l e a r F a u l t s F a u l t s C l e a r e d 1. To CLEAR all stored faults press both UP and DOWN buttons for 5 seconds until “Faults Cleared”...
  • Page 39 Program Mode – Max Temperatures Po o l Ma x T e m p Sp a Ma x T e m p 107F 1. Displays MAXIMUM available Temp Set temperatures (Pool or Spa) and allows adjustment from 50ºF (10ºC) (lowest) up to 107°F (42ºC) (highest) by pressing UP or DOWN Buttons.
  • Page 40 Control Lockout – Lock Box Backdoor C l e a r F a u l t s Lockbox override Touch any button to display “PIN.” • Enter “101” to override Lock Box until power is reset. DOWN ARROW BUTTON C l e a r F a u l t s F a u l t s C l e a r e d Set factory defaults...
  • Page 41 Inlet-Outlet Header – Polymer Bypass Assembly Water Pressure Switch P/N 006715F P/N 006737F See page 47 Temperature Sensor P/N 009577F See page 24 Pressure Relief Valve P/N 017957F Balancing Baffle P/N 006826F P/N 006826F High Limit 1 & 2 P/N 006725F Unitherm Governor P/N 006719F See page 44...
  • Page 42 Inlet-Outlet Header – Bronze Temperature Sensor P/N 009577F High Limit 1 See page 24 P/N 018304F T & P Gauge P/N 014647F Unitherm Governor/ Bypass Assembly P/N 017958F (206-267) ProTek Shield Adapter P/N 017962F (336-407) P/N 018006F Pressure Relief Valve P/N 017957F High Limit 2 P/N 006725F...
  • Page 43 Inlet-Outlet Header – Cast Iron Bypass Valve P/N 016194F Flow Switch P/N 007142F Flow Switch Paddle Auto Gas Shut-Off P/N 010026F P/N 600892B Unitherm Governer P/N 062234B U.G. Retainer Spring P/N 062234B U.G. Plug T & P Gauge P/N 062234B P/N 014647F...
  • Page 44 Unitherm Governor The UNITHERM GOVERNOR helps prevent condensation and scale. It is a thermostatic mixing valve used to control and regulate the water temperature in the heat exchanger. Low temperatures in the exchanger can cause condensation. This indicates that the heat exchanger is running cool. This may be caused by too much flow. Make sure the pump is not supplying more than 125GPM (100GPM max flow for ASME models). Adjust flow accordingly. Also check the U.G. to make sure it is working properly and not damaged from chemical corrosion or stuck.
  • Page 45 ProTek Shield Assembly This heater is equipped with a ProTek Shield Assembly (located under the inlet connection on polymer headers) and in the ProTek Shield Adapter assembly shipped loose in the accessory carton for field installation on brass ASME headers. NOTE: ProTek Shield available on ASME models Manufactured in March 2020 or later.
  • Page 46 Flow Rates and Pressure Drops Polymer Header (Residential Models) New Bronze Header (ASME Models) Old Bronze/Cast Iron Header (ASME Models) Plastic Internal Baffle Manufactured after 12/2019 (UG Fully Open) (UG Closed) Manufactured before 12/2019 (UG Closed) Pressure Drop (Ft of Head) Pressure Drop (Ft of Head) Flow Flow...
  • Page 47 Internal Bypass Valve The Automatic Bypass Assembly allows the heater to be connected to a wide variety of pumps. With every job site having different flow rates, the Bypass automatically adjusts to provide the proper flow rate to the heater, up to 125GPM max (100GPM for ASME models). If the flow rate exceeds 125GPM condensation may form and erosion of the copper tubes may occur. It is then recommended that an external bypass be installed before the heater.
  • Page 48 PRV Installation Polymer Header Bronze Header Bronze/Cast Iron Header (Residential Models) (New ASME Models) (Old ASME Models) These illustrations depict the correct installation of a PRV (pressure-relief valve). All piping must be of suitable metal construction by applicable code. Larger PRVs may require additional additional plumbing components for fit. Smaller PRV’s can be mounted directly into the header.
  • Page 49 Pilot Assemblies – Spark Gap 0.156 ± .04 0.18 ± .04 0.125 ± .15 Atmospheric Pilot Low NO Pilot...
  • Page 50 Blower Location and Combustion Air Orifice Plate Notches Indicate Heater Model Size: (Three Notches) (Four Notches) (One Notch) (Two Notches) If replacing blower, remove the combustion air orifice plate and remount it onto the new blower. Refer to illustrations to distinguish between different sizes of combustion air orifice plates if supplied with a new blower. NOTCHES INDICATE HEATER SIZE Note: There is a small 5/16 hex screw holding the blower onto the heater Blower Location cabinet, behind the blower on the far...
  • Page 51 Low NO Air Pressure Switch There are 4 different air pressure switches for the Low NO heaters. None of the switches are interchangeable. Each switch has a colored decal to help identify the switch. See chart below for proper switch choice.
  • Page 52 2. What is the power at the circuit board? 3. What is the incoming gas pressure? 4. If the unit can fire, what is the pressure at the manifold (burner pressure)? 5. Is the gas line rigid or flex-line? THIS IS NOT A SUBSTITUTE FOR THE INSTALLATION AND OPERATION MANUAL. THIS MANUAL IS INTENDED TO HELP THE SERVICE TECHNICIAN WITH BASIC TROUBLESHOOTING. Learn more at Raypak.com Litho in U.S.A. ©2020 Raypak, Inc. 6500.00A Effective 04-01-21 Replaces 06-15-20...