Raypak 751 Installation And Operating Instructions Manual

24, "TH" leads. Before starting the boiler, ensure that there is proper voltage to the boiler and pump. The boiler must be electrically grounded in accordance with National Electrical Code ANSI/NFPA No. 70 and CSA C22.1 C.E.C. Part 1 in Canada. Notes: 1. Field installed ground to…

13, HYDRONIC HEATING Pump Selection In order to ensure proper performance of your boiler system, you must install a properly sized pump. Raypak recommends using a 20°F ΔT as design ΔT. (ΔT is the temperature difference between the inlet and outlet water when the boiler is firing …

21, Raypak 751 21 Fig. 15: Double Boiler - Pool Application This based on average pool depth of 4’ 6” (4.5 ft) Table H: ADB Pool Sizing; Indoor or Outdoor GAS SUPPLY CONNECTIONS Gas piping must have a sediment trap ahead of the boiler gas controls, and a manual shut-off valve locat- ed outside the heater ja…

40, 40 e) A venting system shall terminate at least 3 feet above any forced air inlet located within 10 feet. f) Adjacent brick or masonry surfaces must be pro- tected with a rust-resistant sheet metal plate. g) Multiple Outdoor Vent installations require a four (4) feet clearance between vent cap…

5, 5 BEFORE INSTALLATION Raypak strongly recommends that this manual be re- viewed thoroughly before installing your ADB heater. Please review the General Safety information before installing the heater. Factory warranty does not apply to heaters that have been improperly installed or ope…

39, 39 Model Venting Category Certified Venting Material Vent Size (inches) Maximum Vent Length (feet) Combustion Air Intake Pipe Material Air Inlet Size (inches) Max. Air Intake Length (feet) ADB-751 w/CHX IV UL 1738 Certified Venting Material e.g. AL29-4C Stainless Steel PVC*, CPVC* 8 35 Subt…