Raypak XFyre 300A Installation & Operating Instructions Manual

VentingGeneralAppliance 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 L for appliance category requirements.Use only PVC or CPVC vent material (in Canada,ULC-S636 approved plastic material must be used) orspecial gas vent pipes listed for use with Category IVgas burning heaters, such as the AL29-4C stainlesssteel vents offered by Heat Fab Inc. (800-772-0739),Protech System, Inc. (800-766-3473), Z-Flex (800-654-5600) or American Metal Product (800-423-4270).Pipe joints must be positively sealed. Follow the ventmanufacturer’s installation instructions carefully.Centrotherm™ polypropylene vent material is alsoapproved to be used on XFyre products. A ventadapter (option D-33) must be used to ensure a prop-er seal of the flue and condensate. The vent adapterkit supplied by Raypak includes a higher temperaturerated vent limit.Vent installation shall be in accordance with Part 7,Venting of Equipment, of the NFGC, ANSIZ223.1/NFPA 54, Section 7, Venting Systems and AirSupply for Appliances, of the B149 Code, or applicableprovisions of the local building codes.NOTE: For additional information on appliancecategorization, see the ANSI Z21.13 Standard andthe NFGC (U.S.), or B149 (Canada), or applicableprovisions of local building codes.CAUTION: Proper installation of flue venting iscritical for the safe and efficient operation of theboiler.WARNING: Contact the manufacturer of the ventmaterial if there is any question about the appliancecategorization and suitability of a vent material forapplication on a Category IV vent system. Usingimproper venting materials can result in personalinjury, death or property damage.Alarm ConnectionAn alarm bell or light may be connected to the alarmcontacts on the boiler PIM. The Alarm Contacts are3A rated dry contacts on a normally-open relay thatclose during fault or lockout conditions, and the maxi-mum voltage across the contacts is 30 VAC or 30VDC. Connections are made at J1 pins 1 and 2.In a cascade system, the alarm output of the masterboiler will be active if either the master boiler or fol-lower(s) have a lockout condition. The alarm outputof the follower boilers will only energize if a lockoutcondition occurs on that specific boiler.WARNING: Do not use foam core or cellular corePVC/CPVC pipe for venting.WARNING: DO NOT insulate PVC or CPVC ventpipe.25CAUTION: When using stainless steel vent in a cli-mate where freezing may occur, a double wall ventpipe must be used.