Jandy HI-E2 Installation And Operational Manual

Jandy HI-E2 Installation And Operational Manual Manual pdf 11 page image

Page 11ENGLISHJandy ® Pro Series, Hi-E2 ® and Hi-E2R Gas-Fired Heater | Installation & Operation ManualFigure 12. Condensate drain and trap.TrapOverfl owToDisposalWater LevelPushed DownSlightlyWater LevelPulled Up2"-3"(50-75 mm)CondensateFromCollectorDrainCondensate FromVent/Blower Drains1/4" - 3/8"(6-10 mm)Figure 13. Manual Shut-off Valve and Sediment Trap.of condensate can be produced in an hour. Condensate ismildly acidic. Before treatment, its “pH” is typically in the3.5 to 6.0 range.Handling and disposal of condensate is not complicated,but it must be done correctly to prevent problems orcomplaints. A trap/neutralizer assembly is provided withthe heater to simplify installation. This assembly is easilyinstalled in the base of the heater. Figure 11 illustrates itsinstallation and the routing of drain tubes.To install the condensate assembly, first install theshort length of 5/8" I.D. tubing (Collector Drain) onthe barbed fitting on the bottom of the condensatecollector. Then drop the condensate tray into the openingin the base pan of the heater, bending the 5/8" tubing asnecessary to get the tube into the tray. Readjust the 5/8"tubing so that its lower end is 1/4" - 3/8" above the bottomof the tray. The tray can be positioned with the outlet fittingto the right, as shown in Figure 11, or with the fitting to theleft, depending on the direction required for condensatedisposal. Connect the piece of 1/2" I.D. tubing to thisoutlet fitting and route it out of the heater through the holein the side of the base panel. This tube carries condensateto the drain. If this disposal tube is routed to the left,remove the plug button from the hole on the left side of thebase panel and push it into the hole on the right side.Connect the remaining short piece of 3/8" I.D. tubing tothe barbed tee fitting in the tubing immediately in front ofthe blower. Position this tubing so that its bottom end is1/4"-3/8" above the bottom of the condensate tray. Thistube provides drainage for the vent duct and blower.A package of limestone gravel neutralizer is provided withthe condensate assembly. Remove the neutralizer from thepacking and spread evenly throughout the tray and aroundthe properly placed tubes. Be sure that a limestone pebbledoes not plug any of the tubes.IMPORTANT After placing the limestone neutralizer inthe tray add water until the water level is at the sameheight as the overflow, see figure 12. Place the coveron the tray when this is done.It is important that there be no sagging sections of tubingto trap water. Drainage to the trap and out of the trapto the drain must be assured by continuous downwardrouting of these tubes. It may be necessary to elevatethe heater to provide downward routing. The outlet ofthe disposal tube must be open to the air. PVC pipe isrecommended for long drain tubes.If a gravity drain is not available, a condensate pumpmust be provided in the field. Suitable condensate pumpsare available commercially at air conditioning equipmentdistributors.Incorrect installation of the condensate assembly ortubing can result in overflow or waterlogging of the vent.In normal operation, water accumulates in the tray at thelevel of the outlet fitting, and this provides a “water seal”which accommodates combustion system pressures. Figure12 illustrates the water seal. Note that water is “pulled”up toward the condensate collector pan and is pusheddown slightly by the vent/blower drain. If there is no waterseal, air rushes into the collector drain, preventing normaldrainage of condensate water, until vent drainage providesthe seal. See Section 2.12, Start-Up and Adjustment.The installer must be sure to take whatever measuresare necessary to prevent property damage by condensateoverflow. If the heater location is such that this watercan directly or indirectly damage a building, furnishingsor other property, an overflow pan or other appropriatepreventative measure should be provided.2.9 Gas Supply and PipingBefore installing gas piping, check the rating plate on theheater to be sure that the heater is for use with the correct(available) gas. Make sure that gas supply pressure isadequate per the requirements in Table 4.PIPENIPPLESEDIMENT TRAP3 in((