O. Smith Water Products Co. You should thoroughly read and understand this manual before installation and/or operation of this boiler. Please pay particular attention to the important safety and operating instructions as well as the WARNINGS and CAUTIONS. CONTENTS PAGE ROUGH-IN DIMENSIONS/CAPACITIES ............. 2 - 3 FOREWORD ..................................................... 4 - 5 FEATURES/CONTROLS ................................... 5 - 6 INSTALLATION INSTRUCTIONS ................... 6 -

Model Air Intake Vent 81 - 211 3 inches 3 inches 286 4 inches 4 inches Table 3C Air Intake/Vent Piping Sizes Increasing or decreasing combustion air or vent piping is not authorized. NOTICE Minimum / Maximum allowable combustion air and vent piping lengths are as follows: Combustion Air = 12 equivalent feet minimum / 100 equivalent feet maximum Vent = 12 equivalent feet minimum / 100 equivalent feet maximum When determining equivalent combustion air and vent length, add 5 feet for each 90° elbow

The time range of this parameter is 10 minutes to 240 minutes. The default value is 30 minutes. F: Outdoor air reset Outdoor air shutdown When the outdoor air shutdown rises above this point, the control will block all SH demands (DHW demands will still be active). This parameter can be changed by the user or the installer by accessing parameter F5. The temperature range of this parameter is 0°F to 120°F. The default value is 80°F. Outdoor air shutdown differential The outdoor air shutdown diffe

Perform steps in the order given. Failure to comply could result in severe personal injury, death, or substantial property damage. WARNING: Save this manual for future reference. Contents HAZARD DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . .2 PLEASE READ BEFORE PROCEEDING . . . . . . . . . . . . 3-4 RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 THE SOLUTION --HOW IT WORKS . . . . . . . . . . . . . . . . . . . 6-8 1. DETERMINE BOILER LOCATI

PING) 24" 24" 24" 24" 24" 24" 24" 24" TOP 3" 3" 3" 3" 3" 3" 3" 3" VENTING SIZE 6” 8" 8" 10" 12" 12" 14" 14" VENT CATEGORY I I I I I I I I VENT MATERIAL B-VENT B-VENT B-VENT B-VENT B-VENT B-VENT B-VENT B-VENT MAXIMUM DRAFT -0.08" w.c. -0.08" w.c. -0.08" w.c. -0.08" w.c. -0.08" w.c. -0.08" w.c. -0.08" w.c. -0.08" w.c. MINIMUM DRAFT -0.01" w.c. -0.01" w.c. -0.01" w.c. -0.01" w.c. -0.01" w.c. -0.01" w.c. -0.01" w.c. -0.01" w.c. * Minimum flow rate and head loss are based on a 40°F te

CONTRACTOR_ MODEL NO._ TYPE GAS _ Btu/hr INPUT_ Btu/hr OUTPUT_ NOTES Standard Features • 84% AFUE • Two Stage Firing • Sealed Combustion Chamber • Stainless Steel Burners • Low NOx Operation Exceeds the most Stringent Air Quality Requirements • ASME Copper Finned Tube Heat Exchanger • 160 PSI Working Pressure • Gasketless Heat Exchanger Design • Automatic Reset High Limit • Loch-Heat Ceramic Tile Combustion Chamber • Hot Surface Ignition • ASME Pressure Relief Valve • 24 Volt

INLET PRESSURE, NAT 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c. MANIFOLD PRESSURE, NAT 1.8” w.c. 1.8” w.c. 1.8” w.c. 1.8” w.c. 1.2” w.c. 1.2” w.c. 1.2” w.c. 1.2” w.c. 1.2” w.c. MAX. INLET PRESSURE, LP 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c. MIN. INLET PRESSURE, LP 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c. MANIFOLD PRESSURE, LP 4.6” w.c. 4.6”

WATER FLOW RATE (GPM) 55 55 55 55 90 90 90 90 90 HEAD LOSS (FT. OF HD.) 6.4 6.5 6.7 6.8 5.8 6.6 7.2 8.4 9.2 MIN. WATER FLOW RATE (GPM) * 17 21 28 32 29 37 41 51 58 HEAD LOSS (FT. OF HD.) * 0.6 0.7 1.6 2.3 1.1 1.3 2.0 2.6 4.8 MAX. WORKING PRESSURE (PSI) 160 160 160 160 160 160 160 160 160 # OF RELIEF VALVES 1 1 1 1 1 1 2 2 2 RELIEF VALVE SIZE 1” 1” 1” 1” 1” 1” 1” 1” 1” RELIEF VALVE RATING (MBH) 1,352 1,352 1,352 1,352 1,352 1,352 1,352 1,352 1,352 RELIEF VALVE PRESSURE RATING (PSI) 50 50

INLET PRESSURE, LP 13.0" w.c. 13.0" w.c. 13.0" w.c. 13.0" w.c. 13.0" w.c. 13.0" w.c. 13.0" w.c. 13.0" w.c. MIN. INLET PRESSURE, LP 8.0" w.c. 8.0" w.c. 8.0" w.c. 8.0" w.c. 8.0" w.c. 8.0" w.c. 8.0" w.c. 8.0" w.c. MANIFOLD PRESSURE, LP 4.6" w.c. 4.6" w.c. 4.6" w.c. 4.6" w.c. 4.6" w.c. 4.6" w.c. 4.6" w.c. 4.6" w.c. BTU/HR INPUT 495,000 645,000 745,000 985,000 1,255,000 1,435,000 1,795,000 2,065,000 BTU/HR OUTPUT 400,950 522,450 603,450 797,850 1,016,550 1,162,350 1,453,950 1,672,650 ELECTRICAL

Boiler» ¿ad Pool Ilritrrs PUMP-Rec-06 Rev C PUMP RECOMMENDATION FOR COPPER-FIN 0402-0752 BOILER Pump Specifications_ Part No. HorsePower Flanges Valute Material Flange Material Vendor Vendor Product Series Orientation ARM3044PBF 1/4 2" Cast Iron Cast Iron Armstrong LS45 Horizontal Installation Specifications Specific Model Number Maximum Flow Rate Planned Temperature Rise Planned Flow Rate Total System Head Loss 55 GPM IMPORTANT: Read the Copper-fin II 399-2070 Installation and Opera