Raypak HI DELTA 992B-2342B Installation & Operating Instructions Manual

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

18Potable Water and Space Heating1. All piping materials and components connected tothe water heater for the space heating applicationshall be suitable for use with potable water.2. Toxic chemicals, such as used for boiler treatment,shall not be introduced into the potable water usedfor space heating.3. If the heater will be used to supply potable water,it shall not be connected to any heating system orcomponents previously used with a non-potablewater heating appliance.4. When the system requires water for space heatingat temperatures higher than 140°F, a means suchas a mixing valve shall be installed to temper thewater in order to reduce scald hazard potential.CAUTION: When this heater is used for bothpotable water and space heating, observe thefollowing to ensure proper operation.Fig. 13: Single Domestic Hot Water Heater and StorageTankSoft (0-4 grains per gallon) Medium (5-15 grains per gallon) Hard* (16-25 grains per gallon)ModelNo. T gpm P MTS SHL T gpm P MTS SHL T gpm P MTS SHL992B 28 60 2.7 2 4.6 20 83 5.2 2 8.6 13 132 13.1 2 21.01262B 30 72 4.4 2 7.0 20 106 9.6 2 14.8 16 132 14.8 2 22.71532B 30 86 7.1 2 10.7 20 132 16.5 2 24.4 20 132 16.5 2 24.41802B 30 101 10.7 2 15.5 23 132 18.3 2 26.1 23 132 18.3 2 26.12002B 30 112 13.9 2 19.7 26 132 19.0 2 26.9 26 132 19.0 2 26.92072B 30 116 14.8 2 21.0 27 132 19.0 2 26.9 27 132 19.0 2 26.92342B 30 132 21.4 2 29.3 30 132 21.4 2 29.3 30 132 21.4 2 29.3Table H: Domestic Water Heater Flow Rate RequirementsPool HeatingThe Hi Delta pool heater is equipped with an externalpump and bypass arrangement as standard equip-ment. This arrangement blends outlet water with theinlet water to increase the inlet water temperature,thereby reducing the likelihood of condensation form-ing on the heat exchanger. The pump also serves toCAUTION: Power to the heater should beinterlocked with the main system pump to make surethe heater does not fire without the main systempump in operation. Improper flow control candamage the heater. Uncontrolled flow (too high) orrestricted flow (too low) can seriously damage theheater. Follow these instructions to make sure yourheater is properly installed.ΔT = Temperature rise, °FΔP = Pressure drop through heat exchanger, ftSHL = System head loss, ft (based on heater and tank placed no more than 5 ft apart and equivalent length pipe/fittings of 2 1⁄2 ”tube = 25 ft)gpm = Gallons per minute, flow rateMTS = Minimum tubing size*Must utilize optional cupro-nickel tubes. If over 25 grains per gallon, a water softener/treatment system must be utilized.Caution: For scale free operation with "Hard Water" (16-25 grains per gallon of total hardness), the operating control must NOT beset higher than 130 F. For higher than 130 F operation, a water softener/treatment system must be utilized.