DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

venting and sealed combustion. Insulated with 2-inch thick insulation and covered with painted 18gauge metal cabinet. Model PHW, by The Fulton Companies, Port & Jefferson Streets, Box 257,Pulaski NY 13142, or approved equal.B. Water Pressure Rating: 30 psig.C. Hot-water Trim:1. Safety Relief Valve: ASME rated, factory set at 30 psig.2. Gauge: Combination water pressure and temperature. Pressure range to be 0 to 50 psig andtemperature range to be 40 to 240 degrees F.3. Low Water Cutoff: Prevent burner operation on low water level.4. High Limits: Two temperature controls to limit boiler water temperature. One withautomatic reset, the other with manual reset.5. Operating Controls: Prewired, factory assembled electric gas control valve for automatic startand stop of pulse combustor, manual main valve.6. Air safety switch to prevent operation until sufficient prepurge air is ensured.7. Blocked Combustion Air Intake Switch for shutdown of unit, with manual reset.D. Fuel: LP (Propane) gas.2 .2 FLUE1. Flame Safeguard: Prepurge and postpurge cycles, flame detection, data logging functions toinclude operating hours, cycle count, and last six flame failures.2. Emissions: NOx and CO emissions in accordance with State of California standards forboiler size and location.A. Direct venting and combustion air connections using AL29-4C stainless steel vent duct and PVCcombustion air pipe for wall vent application. Furnish intake and exhaust mufflers and screened ventterminations.2 .3 CONTROLSA. UL listed, electronic boiler control with adjustable ratios to reset hot water supply temperature ininverse relation to outside air temperature, adjustable offset to raise or lower reset curve, adjustableoutdoor cutoff, night set back, minimum boiler water temperature adjustment, setback clock andadjustable morning warmup, manual override, LED indication of setback, bypass and on.2 .4 VIBRATION ISOLATORSA. Seismic restrained spring vibration isolators, ASHRAE Type C, see Section 15070.B. Flexible Pipe Connectors: Section 15070.2 .5 ACCESSORIES15510-2BOILERS