Raypak 155C installation instructions Electrical Solid State Thermostat IID

Page 29

ELECTRICAL (SOLID STATE THERMOSTAT IID)

If the pool/spa/hot tub water is too cold, troubleshoot the system as follows:

Check voltage at 24 V terminals.

 

VOLTAGE BETWEEN 21.5-28.5 V.

 

VOLTAGE OUTSIDE RANGE 21.5-28.5 V.

 

Set control to max. temperature. After 2-3

 

Check transformer, 120 V supply, correct as

 

cycles, check water temperature.

 

necessary

 

 

 

 

 

 

 

 

 

TEMPERATURE BELOW 105°F

 

TEMPERATURE 105-106° F.

 

Disconnect sensor leads from circuit board.

 

Control ok.

 

Measure sensor resistance with ohmmeter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESISTANCE 1-14k OHMS.

 

RESISTANCE O OHMS (SHORT CIRCUIT)

 

Check water temperature; estimate expected sensor

 

Check system for shorted wires or open circuits.

 

resistance from chart below.

 

Replace sensor if necessary.

 

 

 

 

 

 

 

 

 

MEASURED AND ESTIMATED RESISTANCE

 

MEASURED AND ESTIMATED RESISTANCE

 

MATCH WITHIN 20 PERCENT.

 

DON'T MATCH.

 

Disconnect potentiometer leads from circuit board.

 

Replace sensor. Reconnect all leads and check

 

Measure resistance with ohmmeter. If resistance is:

 

out system.

 

0-100 ohms at minimum setting;

 

 

 

 

 

 

 

 

 

 

 

 

9k to 11k at maximum setting,

 

 

 

 

 

 

replace circuit board.

 

 

 

 

 

 

Above 11k ohms but less than

 

 

 

 

 

 

15 k ohms, , replace potentiometer.

 

 

 

 

 

 

bove 15k ohms, fix loose or broken wires;

 

 

 

 

 

 

replace potentiometer if necessary.

 

 

 

 

 

 

Reconnect all leads and check out system.

 

 

 

 

 

 

 

 

 

 

 

 

 

If the pool/spa/hot tub water is too hot, troubleshoot the system as follows:

Check voltage at 24 V terminals.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLTAGE BETWEEN 21.5-28.5 V.

 

 

 

 

 

VOLTAGE OUTSIDE RANGE 21.5-28.5 V.

 

 

 

 

Set control to max. temperature. After 2-3

 

 

 

Check transformer, 120 V supply, correct as

 

 

 

cycles, check water temperature.

 

 

 

 

 

necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEMPERATURE ABOVE 108°F

 

 

 

 

 

TEMPERATURE 105-106° F.

 

 

 

 

 

 

Disconnect sensor leads from circuit board.

 

 

 

Control ok.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure sensor resistance with ohmmeter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESISTANCE 1-14k OHMS.

 

 

 

 

 

 

RESISTANCE ABOVE 15k OHMS (OPEN

 

 

 

 

Check water temperature; estimate expected

 

 

 

CIRCUIT) OR SHORT CIRCUIT.

 

 

 

 

 

 

sensor resistance from chart below.

 

 

 

 

 

Fix loose or broken wires. Replace sensor if

 

 

 

 

 

 

 

 

 

 

 

 

 

necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MEASURED AND ESTIMATED RESISTANCE

 

 

 

MEASURED AND ESTIMATED RESISTANCE

 

 

 

MATCH WITHIN 20 PERCENT.

 

 

 

 

 

DON'T MATCH.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disconnect potentiometer leads from circuit board.

 

 

 

Replace sensor. Reconnect all leads and check

 

 

 

Measure resistance with ohmmeter. If resistance

 

 

 

out system.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0-100 ohms at minimum setting:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9k to 11k at maximum setting,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

replace circuit board.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Above 11k ohms, replace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

potentiometer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 ohms (short circuit), replace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

potentiometer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reconnect all leads and check out system.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR RESISTANCE AT VARIOUS TEMPERATURES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(deg. F)

 

61

68

 

70

77

86

 

88

 

 

 

 

 

95

 

104

 

106

 

 

 

 

Resistance (k ohms)

 

14.92

12.49

 

11.88

10.00

8.06

 

7.69

 

 

 

 

 

6.53

 

5.33

 

5.10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

Page 28 Page 30
Image 29
Page 28 Page 30
Contents What to do if YOU Smell GAS VersaPart TWO INSTALLATION/SERVICE Instructions ContentsBefore START-UP START-UP ProceduresBurners WaterMillivolt System IID Electronic Ignition SystemsOperating Instructions Visual Inspection Water Pressure SwitchAfter START-UP Basic Tips if Heater will not Fire Maintenance and Care ProceduresPool & SPA Water Chemistry Automatic Chlorinators and Chemical FeedersWinterizing the Pool & SPA Heater Pressure Switch Compression Fitting Return HeaderCold Weather Operation Receiving Equipment General SpecificationsInstallation Instructions Clearances High Wind Conditions Outdoor Units only Venting Connections Indoor HeatersCombustion AIR Indoor Units only Vent Piping Z223.1Pipe Sizing for GAS Connections GAS Supply ConnectionsCompanion Flange Connections Plumbing for Water Connections LocationPressure Relief Valve Installation Auxiliary Bypass Valve AdjustmentUnitherm Governor Operation Internal Automatic BY-PASS ValveMillivolt System Electrical WiringElectronic Intermittent Ignition Device System IID Honeywell Intermittent Ignition DeviceANSI/NFPA Wiring Diagram KEYFig. #2182e Wiring Diagram Millivolt UnitsWiring Diagram 152148 Model 155 IID Temperature Controls Controls / Adjustments / ReplacementsGeneral Location of Controls View of Heater from Front View of Heater from BackHigh Limits Pressure SwitchFlame ROLL-OUT Safety Switch Burner Drawer Removal Pilot Removal and CleaningGAS Valve Removal Main Burner and Orifice RemovalHeat Exchanger Removal Control Immersion Well ReplacementUnitherm Governor U.G. Replacement Desooting Procedure Tube Replacement ProcedureCombustion Chamber Removal Refractory Panels TOP ViewTrouble Shooting Guide Electrical Millivolt High Voltage Troubleshooting Honeywell S8600Electrical Electronic Ignition IID Voltage Between 21.5-28.5 Voltage Outside Range 21.5-28.5 Electrical Solid State Thermostat IIDRAYPAK, INC Replacement Parts ListPage Page Page Warranty Exclusion

155C specifications

The Raypak 155C is a versatile and efficient heater designed for both residential and commercial applications. Renowned for its robust construction and reliable performance, this unit is an excellent choice for pool and spa heating as well as for providing comfortable ambient temperatures in enclosed or outdoor spaces.

One of the standout features of the Raypak 155C is its innovative copper heat exchanger, which is designed for maximum heat transfer efficiency. This technology allows for rapid heating capabilities, ensuring that water reaches the desired temperature quickly and effectively. The heat exchanger is also resistant to corrosion, thanks to its durable design, prolonging the unit's life and maintaining performance over time.

Designed with user convenience in mind, the Raypak 155C features an intuitive digital control system. This user-friendly interface allows for easy temperature adjustments and monitoring, giving users precise control over their heating requirements. An integrated diagnostic system is also included, providing real-time feedback on the heater's performance and alerting users to any potential issues, which helps in proactive maintenance.

Incorporating advanced safety features, the Raypak 155C includes a high limit switch and a water flow switch, ensuring safe operation at all times. These safety mechanisms prevent overheating and dry firing, protecting both the heater and the connected plumbing system.

The Raypak 155C is engineered for energy efficiency, meeting and exceeding industry standards. With a compact design, it ensures easy installation and integration into existing setups, making it a favorable choice for various applications. Its quiet operation adds to user comfort, allowing it to be installed in residential settings without causing disturbances.

With a heating capacity of 155,000 BTU, the Raypak 155C is capable of effectively heating larger pools and spas, making it ideal for homes with extensive water features. The heater is designed to run on natural gas or propane, providing flexibility based on user preferences and availability.

Overall, the Raypak 155C combines state-of-the-art technology with practical features, making it one of the top choices for those looking to enhance their pool experience or improve comfort levels in their outdoor areas. Its reliability, efficiency, and user-friendly features make it a valuable investment for any property.
Top Page Image Contents