Crown Boiler FWZ Series, Installation Instructions Manual

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Table of Contents
I. Product Description ............................................................................... 5
II. Specifications ......................................................................................... 5
III. Before Installing .................................................................................... 7
IV. Field Assembly ...................................................................................... 8
V. Locating the Boiler ................................................................................ 11
VI. Air for Combustion & Ventilation ......................................................... 12
VII. Venting ................................................................................................... 16
VIII. System Piping ........................................................................................ 19
IX. Fuel Line Piping .................................................................................... 24
X. Wiring .................................................................................................... 27
XI. Start-Up & Checkout ............................................................................. 31
XII. Operation ............................................................................................... 35
XIII. Service & Maintenance .......................................................................... 41
XIV. Troubleshooting ..................................................................................... 44
XV. Parts ....................................................................................................... 49
WARNING
This boiler must be properly vented. The chimney must be inspected for any obstructions and cleaned
prior to each heating season. A clean and unobstructed chimney flue is necessary to produce the minimum
draft required to safely evacuate noxious fumes that could cause personal injury or loss of life. Evidence
of loose debris and or condensate induced stains at the base of the chimney flue, connector or smokepipe
joints may be signs of condensing flue gases. Flue gas condensate is corrosive, which requires special
consideration and must be addressed immediately. Refer to Section VII, "Venting" in this manual for
more details.
This boiler needs fresh air for safe operation and must be installed so there are provisions for adequate
combustion and ventilation air.
This boiler is supplied with controls which may cause the boiler to shut down and not re-start without
service. If damage due to frozen pipes is a possibility, the heating system should not be left unattended in
cold weather; or appropriate safeguards and alarms should be installed on the heating system to prevent
damage if the boiler is inoperative.
This boiler is designed to burn No. 2 fuel oil only. Do not use gasoline, crankcase drainings, or any oil
containing gasoline. Never burn garbage or paper in this boiler. Do not convert to any solid fuel (i.e.
wood, coal). Do not convert to any gaseous fuel (i.e. natural gas, LP). All flammable debris, rags, paper,
wood scraps, etc., should be kept clear of the boiler at all times. Keep the boiler area clean and free of
fire hazards.
All boilers equipped with burner swing door have a potential hazard which, if ignored, can cause severe
property damage, personal injury or loss of life. Before opening swing door, unplug burner power cord
from receptacle located in lower right corner of jacket front panel and turn off service switch to boiler
to prevent accidental firing of burner outside the combustion chamber. Be sure to tighten swing door
fasteners completely when service is completed.