Raypak HI DELTA HD101 Installation & Operating Instructions Manual

Also see for HI DELTA HD101 THRU 2342B: Brochure & specs User's information manual User manual Installation & operating instructions Installation & operating instructions

19Electrical Power ConnectionsInstallations must follow these codes:· National Electrical Code and any other national,state, provincial or local codes or regulations hav-ing jurisdiction· Safety wiring must be N.E.C. Class 1· Heater must be electrically grounded as requiredby N.E.C.· In Canada, C22.1The heater is wired for 120 VAC, less than 12 AMPS.The voltage is indicated on the tie-in leads. Consult thewiring diagram shipped with the heater in the instruc-tion packet. The remote tank control stat, thermostat,or electronic heater control as applicable, may be con-nected to stage selector terminal (See wiring diagram).24 Volts are supplied to this connection through theheater transformer. DO NOT attach line voltage tothe “TH” leads. Before starting the heater check toensure proper voltage to the heater and pump.Install a separate disconnect means for each load.Use appropriate-sized wire as defined by NEC, CSAand/or local code. All primary wiring should be 125% ofminimum rating.It is strongly recommended that all individually-pow-ered control modules and the heater should besupplied from the same power source.Surge ProtectionMicroprocessor-based and solid state controls are vul-nerable to damage from voltage and amperagefluctuations in the power supply. All sensitive controlcomponents should be protected by a suitable com-mercial-grade surge protection device.If any of the original wire as supplied with the heatermust be replaced, it must be replaced with 105°C wireor its equivalent.Check the Power SourceAC = 108 Volts AC Minimum, 132 Volts AC MAXAB = 108 Volts AC Minimum, 132 Volts AC MAXBC = < 1 Volt ACMaking the Electrical ConnectionsRefer to Fig. 14 and the Wiring Diagram.1. Verify circuit breaker is properly sized by referringto heater rating plate. A dedicated circuit breakershould be provided.2. Turn off all power to the heater. Verify that powerhas been turned off by testing with a volt-ohmmeter prior to working with any electrical connec-tions or components.3. Observe proper wire colors while making electricalconnections. Many electronic controls are polaritysensitive. Components damaged by improperelectrical installation are not covered by warranty.4. Provide an external surge suppressor capable ofmaintaining system integrity.5. Provide overload protection and a disconnectmeans for equipment serviceability as required bylocal and state code.6. Install heater controls, thermostats, or buildingmanagement systems in accordance with theapplicable manufacturer’s instructions.7. Conduit should not be used as the ground. Theremust be a solidly wired ground.Fig. 14: Check Power SourceNOTE: A grounding electrode conductor shall beused to connect the equipment groundingconductors, the equipment enclosures, and thegrounded service conductor to the groundingelectrode.WARNING: Using a volt-ohm meter (VOM), checkthe following voltages at the terminal block inside theunit. Make sure proper polarity is followed and houseground is proven.