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Manafacture: Raypak File size: 127.26 kb File name: Language of manual:

A Rheem® Company • Radiant Heating • Hydronic Space Heating • Snow Melting RESIDENTIALS Inputs from 42,000 thru 180,000 BTUH Firing Mode Models 42 & 66 - Single-stage firing Models 90-180 - 2-stage firing Non-Condensing Operates at 105 °F return water temperature without condensing - perfect for the low-temperature needs of radiant floor and snow melting systems Built-In Pump and Bypass Offers maximum application flexibility Honeywell IID Ignition Standard S8600 IID eliminates off-cycle fuel consumption; Standing pilot available on Models 90-180 "Spark-To-Hood" Pilot Eliminates erratic pilot ignition and lockout Motorized Vent Damper Prevents heat loss during off-cycles ''’Radiant Readv t Non-Ferrous Waterways Option All bronze pump and fittings and glass-lined headers eliminate boiler oxygen permeation problems associated with non-barrier radiant tubing Outstanding Warranty One-year parts and service warranty against defects Residentials - Models 42 - 180 AFUE Ratings Tested with 11D ignition and vent damper. Model AFUE H-0042 84.0 H-0066 83.0 H-0090 83.0 H-0135 83.0 H-0180 83.0 Results for standing pilot models available. 0042 thru 0090 0135 thru 0180 Model Input MBTUH Heating Capacity MBTUH Net Water Rating MBTUH Piping Connections B Vent Diameter K Approx Shipping Weight (lbs) Clearances Water NPT Gas NPT Floor Front Rear Right Side Left Side Top Flue Vent H-0042 42 35 30 1" 1/2" 5 1/2" 4" 95 Combustible 4" 6" 6" 6" 16" 6" H-0066 66 54 47 1" 1/2" 5 3/4" 5" 105 Combustible 4" 6" 6" 6" 16" 6" H-0090 90 74 64 1" 1/2" 5 3/4" 5" 105 Combustible Alcove 6" 6" 6" 16" 6" H-0135 135 109 95 1 1/4" 1/2" 6 1/4" 6" 135 Combustible Alcove 6" 6" 6" 16" 6" H-0180 180 148 129 1 1/4" 1/2" 8" 7" 140 Combustible Alcove 6" 6" 6" 16" 6" Ratings shown are for elevations up to ...

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