Raypak 1000 Operating And Installation Manual

Raypak 1000 Operating And Installation Manual Manual pdf 50 page image

50SECTION L CONTROLSWARNING: Installation, adjustment and service of boiler controls including timing of various operatingfunctions must be performed by a qualified installer, service agency or the gas supplier. Failure todo so may result in control damage, boiler malfunction, property damage, personal injury, or death.WARNING: Turn off the power to the boiler before installation, adjustment or service of the Central Point Wiringboard or any boiler controls. Failure to do so may result in board damage, boiler malfunction,property damage, personal injury, or death.CAUTION: This appliance has provisions to be connected to more than one (1) supply source. To reduce the riskof electric shock, disconnect all such connections before servicing.CAUTION: Risk of electric shock. More than one (1) disconnect switch may be required to de-energize theequipment before servicing.CENTRAL POINT WIRING (CPW)Central Point Wiring is an advanced control integration technique that provides complete boiler diagnostic capabilityand greatly simplifies troubleshooting. At the heart of CPW is the Operations Status Center, which is comprised of twodifferent circuit boards: the CPW board and one or more U-2 Diagnostic Boards.THE CPW BOARDThe Central Point Wiring (CPW) board serves as the central tie point for connecting all other control components in theboiler. The CPW board provides boiler operating status and fault indication using eight LEDs which function as describedin Table L-1Table L-1 CPW Board LED IndicatorsLight Color IndicationPower Green 24 VDC is applied to the systemSystem Error Red Overload current on the board. Board is disabled.Pump Green Boiler Pump is energized.Pilot Yellow Power applied to the Pilot Gas Valve. (PV signal on.)Main Gas Green Power applied to Main Gas Valve. (MV signal on.)Call for Heat Green Thermostat is closed. Call for heat present.Service Red (Flashing) One or more of the safeties are open. Refer to U-2 BoardBlower Green Blower is energized.