Raypak Hi Delta 992B-1262B Installation & Operating Instructions Manual

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

30speed. Do not operate summer exhaust fan. Closefireplace dampers.4. Place in operation the appliances being inspected.Follow the manufacturer’s instructions for lightingeach appliance. Adjust thermostat so appliancewill operate continuously.5. Check the pressure at a pressure tap located 12in. above the bottom joint of the first vertical ventpipe. Pressure should be anywhere between -0.01and -0.08 in. WC.6. After it has been determined that each applianceremaining connected to the common venting sys-tem properly vents when tested as outlined above,return doors, windows, exhaust fans, fireplacedampers and other gas burning appliances to theirprevious conditions of use.7. Any improper operation of the common ventingsystem should be corrected so that the installationconforms with the NFGC (U.S.) or B149 (Canada).When re-sizing any portion of the common ventingsystem, the common venting system should be re-sized to approach the minimum size asdetermined using the appropriate tables in theNFGC (U.S.) or B149 (Canada).Horizontal Through-the-Wall Venting(Category III)InstallationThese installations utilize the heater-mounted blowerto vent the combustion products to the outdoors.Combustion air is taken from inside the room and thevent is installed horizontally through the wall to the out-doors. Adequate combustion and ventilation air mustbe supplied to the equipment room in accordance withthe NFGC (U.S.) or B149 (Canada).*Fig. 28: Horizontal Through-the-Wall Venting(Category III)The total length of the horizontal through-the-wall fluesystem should not exceed 70 equivalent ft in length. Ifhorizontal run exceeds 70 equivalent ft, an appropri-ately sized extractor must be used. Each elbow usedis equal to 10 ft of straight pipe. This will allow installa-tion in one of the four following arrangements:• 70’ of straight flue pipe• 60’ of straight flue pipe and one elbow• 50’ of straight flue pipe and two elbows• 40’ of straight pipe and three elbowsThe vent cap is not considered in the overall length ofthe venting system.The vent must be installed to prevent flue gas leakage.Care must be taken during assembly to ensure that alljoints are sealed properly and are airtight. The ventmust be installed to prevent the potential accumulationof condensate in the vent pipes. It is required that:1. The vent must be installed with a slight downwardslope of not more than 1/4 inch per foot of hori-zontal run to the vent terminal.2. The vent must be insulated through the length ofthe horizontal run.For installations in extremely cold climate, it is re-quired that:1. The vent must be installed with a slight upwardslope of not more than 1/4 inch per foot of hori-zontal run to the vent terminal. In this case, anapproved condensate trap must be installed perapplicable codes.2. The vent must be insulated through the length ofthe horizontal run.TerminationThe flue direct vent cap MUST be mounted on the ex-terior of the building. The direct vent cap cannot beinstalled in a well or below grade. The direct vent capmust be installed at least 1 ft above ground level andabove normal snow levels. The Raypak-approvedstainless steel flue direct vent cap must be used (salesorder option D-15).WARNING: No substitutions of flue pipe or ventcap material are allowed. Such substitutions wouldjeopardize the safety and health of inhabitants.*Requires optional vent tee.