5BEFORE INSTALLATIONRaypak strongly recommends that this manual be re-viewed thoroughly before installing your Hi Deltaheater. Please review the General Safety informationbefore installing the heater. Factory warranty does notapply to heaters that have been improperly installed oroperated. (Refer to the warranty at the back of thismanual.) Installation and service must be performedby a qualified installer, service agency or gas supplier.If, after reviewing this manual, you still have questionswhich this manual does not answer, please contact themanufacturer or your local Raypak representative.Thank you for purchasing a Raypak product. We hopeyou will be satisfied with the high quality and durabilityof our equipment.Product ReceiptOn receipt of your heater it is suggested that you visu-ally check for external damage to the shipping crate. Ifthe crate is damaged, make a note to that effect on theBill of Lading when signing for the shipment. Removethe heater from the shipping packaging. Report anydamage to the carrier immediately.On occasion, items are shipped loose. Be sure thatyou receive the correct number of packages as indi-cated on the Bill of Lading.Claims for shortages and damages must be filed withthe carrier by consignee. Permission to return goodsmust be received from the factory prior to shipping.Goods returned to the factory without an authorizedReturned Goods Receipt number will not be accepted.All returned goods are subject to a restocking charge.When ordering parts, you must specify the model andserial number of the heater. When ordering under war-ranty conditions, you must also specify the date ofinstallation.Purchased parts are subject to replacement onlyunder the manufacturer’s warranty. Debits for defec-tive replacement parts will not be accepted and will bereplaced in kind only per Raypak’s standard war-ranties.Model IdentificationThe model identification number and heater serialnumber are found on the heater rating plate located onthe lower right outside jacket of the heater. The modelnumber will have the form H9 1262B or similardepending on the heater size and configuration. Theletter(s) in the first group of characters identifies theapplication (H = Hydronic Heating, WH = DomesticHot Water (DHW), P = Pool). The number which fol-lows identifies the firing mode (1 or 4 = on-off, 3 =2-stage, 8 = 3-stage and 9 = 4-stage). The secondgroup of characters identifies the size of the heater(four numbers representing the approximate MBTUHinput), and, where applicable, a letter, indicating themanufacturing series. An “E” suffix indicates 87% effi-ciency (Category II or IV venting) (“H” stamped boilersonly).Ratings and CertificationsStandards:• ANSI Z21.13 · CSA 4.9 - latest edition, Gas-FiredHot Water Boilers• CAN 3.1 - latest edition, Industrial andCommercial Gas-Fired Package Boilers• ANSI Z21.56 · CSA 4.7 - latest edition Gas-FiredPool Heaters• ANSI Z21.10.3 · CSA 4.3 - latest edition GasWater HeatersAll Raypak heaters are National Board Approved, anddesign-certified and tested by the Canadian StandardsAssociation (CSA) for the U.S. and Canada. Eachheater is constructed in accordance with Section IV ofthe American Society of Mechanical Engineers(ASME) Heater Pressure Vessel Code and bears theASME stamp. The heater also complies with the latestedition of ASHRAE 90.1 Standard.Installations at ElevationRated inputs are suitable for up to 5,000 ft elevationwithout de-rating. Consult the factory for installationsat altitudes over 5,000 ft above sea level.WARNING: Altering any Raypak pressure vesselby installing replacement heat exchangers, tubebundle headers, or any ASME parts notmanufactured and/or approved by Raypak willinstantly void the ASME and CSA ratings of thevessel and any Raypak warranty on the vessel.Altering the ASME or CSA ratings of the vessel alsoviolates national, state, and local approval codes.