For installations subject to UL726, a second operating control that senses water temperature is also required (not provided). Use an L4080B or equivalent. Install in the supply piping near the boiler. 2. Steam Boiler Controls: a. Install the limit / operating control, pressure gauge, gauge glass trim and safety relief valve. See Figure 7.2 (Section 7), Figure 3.7 (float boilers) and cover photo (probe boilers). b. For installations subject to UL726, a second operating control that senses steam p

Ceramic fiber blanket liner (item 3, WBV-04 and WV-05) should be on floor of boiler in front of target wall. 5. Remove the two (2) knockouts in the front jacket panel which will allow clearance for the hinge. Place the front jacket panel on the block and attach the left and right side panels in the same manner as they are attached to the back panel. 6. Reinstall the burner mounting plate. BOILER PLACEMENT AND ASSEMBLY (See Table 8.1 for parts identification). Figure 2.1: Steam boiler 5 Figure 2.

Installation, Operation & Maintenance Manual TABLE OF CONTENTS TABLE OF CONTENTS USING THIS MANUAL 1 A. INSTALLATION CLEARANCE . . . . . . . . . . . . .1 B.SPECIAL ATTENTION BOXES . . . . . . . . . . . .1 1. PREINSTALLATION 2 A.CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . .2 B. AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . .2 C. CHIMNEY / VENT AND DRAFT CONTROL . .3 D.INSTALLATION SURVEY . . . . . . . . . . . . . . . .3 E. PLANNING THE LAYOUT . .

3. Install burner harness located in the burner carton. Beckett or Carlin – EC7022 Harness (21" conduit) Riello – EC7023 Harness (28" conduit) 4. For complete information on servicing and adjustment of controls, refer to the attached control specification sheets. 5. See the following Wiring Diagrams: Figure 4.2 - Steam Boilers with Float LWCO Figure 4.3 - Steam Boilers with Probe LWCO Figure 4.4 - Water Boilers Figure 4.5 - Zoning with Circulators Figure 4.6 - Zoning with Zone Valves Figure 4.7

This can ignite a gas leak, resulting in fire or explosion. Figure 5.1: Gas Connection to Boiler 8. Disconnect the boiler and its individual shut-off valve from the gas supply piping system during any pressure testing of that system at test pressure in excess of 1/2 psig (3.5 kPa). CAUTION Do not subject the gas valve to more than 1/2 psi (3.5 kPa) pressure. Doing so may damage the valve. Isolate the boiler from the gas supply piping system by closing its individual service valve during any pres

. . . . . . . . . . .1 B.SPECIAL ATTENTION BOXES . . . . . . . . . . . .1 1. PREINSTALLATION 2 A. ACCESSIBILITY CLEARANCES . . . . . . . . . . .2 B. CLEARANCE FROM COMBUSTIBLE CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . .2 C. AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . .2 D.INSTALLATION SURVEY . . . . . . . . . . . . . . . .5 E. PLANNING THE LAYOUT . . . . . . . . . . . . . . . .5 2. BOILER SET-UP 6 3. WATER PIPING AND CONTROLS 7 A. BOILER SUPPLY

C. Use only your hand to push in or turn the gas controlknob. Never use tools. If the knob will not push in orturn by hand, don't try to repair it, call a qualifiedservice technician. Force or attempted repair mayresult in a fire or explosion. D. Do not use this appliance if any part has been under water. Immediately call a qualified service technicianto inspect the appliance and to replace any part of thecontrol system and any gas control which has been under water. WARNING: If you do not follo

b. Turn off all electric power to the boiler. c. Call a qualified heating service organization or local gas company and have the cause of the shut-down investigated and corrected. d. Refer to Lighting/Operating Instructions to re-start boiler. B. TROUBLESHOOTING GUIDES Use Table 8.1 to assist in determining causes and providing corrective actions to boiler problems. Refer also to Figure 8.1 to troubleshoot the Intermittent Ignition System Control. These guides must be used only by qualified serv

. . . . . . . . . . . . . .1 B.SPECIAL ATTENTION BOXES . . . . . . . . . . . .1 1. PREINSTALLATION 2 A. ACCESSIBILITY CLEARANCES . . . . . . . . . . .2 B. CLEARANCE FROM COMBUSTIBLE CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . .3 C. COMBUSTION AND VENTILATION AIR . . . .3 D.CHIMNEYORVENT . . . . . . . . . . . . . . . . . . . .3 E.BOILERSETTING . . . . . . . . . . . . . . . . . . . . . .4 F. INSTALLATION SURVEY . . . . . . . . . . . . . . . .5 G. PLANNING THE LAYOUT . . . . . . . . . .

– WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. – Installation and service must be performed by a qualified installer, service agency or the gas supplier. If the information in this manual is not followed exactly, a fire or explosion m