Raypak HI DELTA 992B-2342B Installation & Operating Instructions Manual

Also see for HI DELTA 1262B: Specification sheet Installation & operating instructions Installation & operating instructions Specifications Brochure & specs

23CIRCUITBREAKERWHITEGROUNDBLACKGREENA B CFig. 18: Wiring ConnectionsCheck the power source:AC = 108 VAC Minimum, 132 VAC MAXAB = 108 VAC Minimum, 132 VAC MAXBC = <1 VAC MaximumIf the heater does not have a factory-wired stage con-troller, it is factory-wired in an on-off configuration withother stage terminals jumpered.To field-connect a stage controller, remove factory-installed jumpers and wire stage controller as shown inFig. 21-24.Making the Electrical ConnectionsRefer to Fig. 18-26.1. Verify that circuit breaker is properly sized byreferring to heater rating plate. A dedicated circuitbreaker should be provided.2. Turn off all power to the heater. Verify that powerhas been turned off by testing with a multi-meterFig. 19: Multi-meterprior to working with any electrical connections orcomponents.3. Observe proper wire colors while making electri-cal connections. Many electronic controls arepolarity sensitive. Components damaged byimproper electrical installation are not covered bywarranty.4. Provide overload protection and a disconnectmeans for equipment serviceability as required bylocal and state code.5. Install heater controls, thermostats, or buildingmanagement systems in accordance with theapplicable manufacturers’ instructions.6. Conduit should not be used as the earth ground.Field Wiring ConnectionNOTE: A grounding electrode conductor shall beused to connect the equipment groundingconductors, the equipment enclosures, and thegrounded service conductor to the groundingelectrode.CAUTION: Label all wires prior to disconnectionwhen servicing controls. Wiring errors can cause im-proper and dangerous operation. Verify properoperation after servicing.Fig. 20: Wiring LocationNOTE: Minimum 18 AWG, 105°C, stranded wiremust be used for all low voltage (less than 30 volts)external connections to the unit. Solid conductorsshould not be used because they can causeexcessive tension on contact points. Install conduitas appropriate. All high voltage wires must be thesame size (105°C, stranded wire) as the ones on theunit or larger.