Crown Boiler 24-03, 24-11 Section IV Operating Instructions, Always Inspect Installation Before

SECTION IV - OPERATING INSTRUCTIONS

		a.	Close isolation valve in boiler supply piping.
		b.	Isolate all circuits by closing zone valves or
	WARNING
			balancing valves.
		c.	Attach a hose to bib cock located just below
	If you do not follow these instructions
			isolation valve in boiler supply piping.
	exactly, a fire or explosion may result
			(Note - Terminate hose in five gallon bucket at a
	causing property damage or personal
			suitable floor drain or outdoor area).
	injury.
		d. Starting with one circuit, open zone valve.
	If any unusual or improper operation or
		e. Open bib cock.
	site conditions are observed, turn the
		f.	Open fill valve (Make-up water line should be
	boiler off and contact an experienced
			located directly above isolation valve in boiler
	and skilled service agency.
			supply piping).
	Follow component manufacturer’s	g. Allow water to overflow from bucket until
	instructions. Component manufacturer’s		discharge from hose is bubble free for 30
	instructions were provided with the		seconds.
	boiler. Contact component manufacturer	h.	Open zone valve to the second zone to be
	for replacement if instructions are		purged, then close the first. Repeat this step until
	missing. Do not install, start up, operate,		all zones have been purged, but always have one
	maintain or service this boiler without		zone open. At completion, open all zone valves.
	reading and understanding all of the	i.	Close bib cock, continue filling the system until
	component instructions. Do not allow
			the pressure gauge registers normal system
	the boiler to operate with altered,
			design operating pressure. Close fill valve.
	disconnected or jumpered components.
			(Note - If make-up water line is equipped
	Only use replacement components
			with pressure reducing valve, system will
	identical to those originally supplied with
			automatically fill to normal system design
	the boiler and burner.
			operating pressure. Leave globe valve open.)
A. ALWAYS INSPECT INSTALLATION BEFORE		j.	Open isolation valve in boiler supply piping.
	STARTING BURNER.	k. Remove hose from bib cock.
B. FILL HEATING SYSTEM WITH WATER.		C. SET CONTROLS with burner service switch turned
	Boiler must be cleaned and fully free of oil and dirt.	“OFF”.

CAUTION

Failure to clean the system will result in erratic water lines and surging, and other improper system operations.

CLEAN HEATING SYSTEM IF boiler water or condensate return water is dirty or if erratic water lines or surging exist after a few days of boiler operation. Refer to step (K) for proper cleaning instructions for steam and water boilers.

1.STEAM BOILERS - Fill boiler to normal water line. As shown in Figure 1, the normal water line is 41½” from the floor or bottom of casting. At the start of each heating season and once or twice during the season try SAFETY VALVE to be sure it is in working condition. To do this, fasten wire or cord to lever of valve and pull lever — standing safe distance away from valve.

2.HOT WATER BOILERS - Fill entire Heating System with water and vent air from system. Use the following procedure on a Series Loop or Multi- zoned System to remove air from system when filling:

DANGER

Do not operate boiler with pressure above maximum allowable working pressure listed on the Boiler Rating Label.

DO NOT draw water from boiler while in use. When adding water while boiler is in operation, do not open supply valve fully but add water slowly.

1.PRESS RESET BUTTON on primary control and release.

2.On STEAM BOILERS set cut-in pressure on L404A Pressuretrol for three (3) PSI and differential pressure for two (2) PSI. These pressures may be varied to suit individual requirements of installation.

3.On STEAM BOILERS WITH TANKLESS DOMESTIC WATER HEATERS, set boiler water temperature dial on low limit operating control at 190°F (max.). Set differential at 10°.

4.ON WATER BOILERS WITHOUT TANKLESS HEATERS, set high limit dial on L4006A at 210°F. This temperature may be varied to suit requirements

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