Raypak HI DELTA 302B Installation & Operating Instructions Manual

Also see for HI DELTA 302B: Brochure & specs Specification sheet Replacement parts Specifications

Raypak HI DELTA 302B Installation & Operating Instructions Manual Manual pdf 25 page image

25SINGLESTAGETANKSTATSTAGE 1CONNECTIONATTACH STAGE 1 CONNECTIONSON HEATER TO THE SINGLE STAGETANKSTAT AS SHOWN IN THE DIAGRAM ABOVE.Fig. 23: Single-Stage TankstatConsult the wiring diagram shipped with the heater inthe instruction packet or at the end of this section. Thestage-selector terminals are for the remote tank con-trol through the heater’s 24 VAC transformer. DO NOTattach any voltage to the stage-selector terminals.Before starting the heater, check to ensure proper volt-age to the heater and pump.VentingGeneralFlue Exhaust TeeAn optional Flue Exhaust Tee is available to facilitatehorizontal venting. Any reference to horizontal ventingthat exits the back of the heater requires this tee. Referto Table L for the appropriate kit for your model.NOTE: If any of the original wire supplied with theheater must be replaced, it must be replaced withsimilar sized 105°C wire or its equivalent.NOTE: For 87%-efficiency boilers, see specialinstructions on page 40.CAUTION: Proper installation of flue venting is criti-cal for the safe and efficient operation of the heater.Appliance CategoriesHeaters are divided into four categories based on thepressure produced in the exhaust and the likelihood ofcondensate production in the vent.Category I – A heater which operates with a non-pos-itive vent static pressure and with a vent gastemperature that avoids excessive condensate pro-duction in the vent.Category II – A heater which operates with a non-pos-itive vent static pressure and with a vent gastemperature that may cause excessive condensateproduction in the vent.Category III – A heater which operates with a positivevent pressure and with a vent gas temperature thatavoids excessive condensate production in the vent.Category IV – A heater which operates with a positivevent pressure and with a vent gas temperature thatmay cause excessive condensate production in thevent.See Table M for appliance category requirements.Model Diameter Order Number302B 5” 011838402B-502B 6” 011839652B, 752B,902B 8” 011840Table L: Flue Exhaust Tee KitsNOTE: For additional information on appliancecategorization, see appropriate ANSI Z21 Standardand the NFGC (U.S.), or B149 (Canada), orapplicable provisions of local building codes.