Lochinvar FTX400L Installation Manual

FTXL-USER Rev A

User’s Information Manual

Models: 400, 500, 600, 725,

& 850

WARNING

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

This appliance MUST NOT be installed in any location where gasoline or flammable vapors are likely to be present.

WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electric switch; do not use any phone in your building.

•Immediately call your gas supplier from a near by 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.

Save this manual for future reference.

Contents

HAZARD DEFINITIONS.....................................................	2
PLEASE READ BEFORE PROCEEDING .........................	3
1. PREVENT COMBUSTION AIR CONTAMINATION .....	4
2. MAINTENANCE SCHEDULE .......................................	5
Maintenance Procedures ...................................................	6
Boiler Must Be Serviced and Maintained ....................	6
Check Boiler Area.........................................................	6
Check Pressure Temperature Gauge...........................	6
Check Vent Piping ........................................................	6
Check Air Piping ...........................................................	6
Check Relief Valve .......................................................	6
Check Condensate Drain System .............................	6-7
Check Air Vents............................................................	8
Test Low Water Cutoff .................................................	8
Reset Button (low water cutoff) ....................................	8
Check Boiler Piping (gas and water) ............................	8
Operate Relief Valve ....................................................	8
Shut Boiler Down..........................................................	8

3. OPERATING INSTRUCTIONS.....................................	9
4. SMART SYSTEM CONTROL MODULE
SMART SYSTEM Control Module ...................................	10
Access Modes ............................................................	10
Saving Parameters .....................................................	10
Adjusting Parameters .................................................	10
Temperature Settings ............................................	10-11
Status Display Screens .........................................	12-14
Notes................................................................................	15
Revision Notes ..................................................	Back Cover

Hazard definitions

The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product.

DANGER

WARNING

CAUTION CAUTION

NOTICE

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

NOTICE indicates special instructions on installation, operation, or maintenance that are important but not related to personal injury or property damage.

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User’s Information Manual

Please read before proceeding

NOTICE	The FTXL Installation and Operation
	Manual along with the FTXL Service
	Manual are for use only by a qualified
	heating	installer/service	technician.
	Refer only to this User’s Information
	Manual for your reference. Improper
	installation, adjustment,		alteration,
	service or maintenance can cause
	property	damage, personal injury
	(exposure to hazardous materials) or
	loss of life. Installation and service must
	be performed by a qualified installer,
	service agency or the gas supplier (who
	must read and follow the supplied
	instruction before installing, servicing,

or removing this boiler. This boiler contains materials that have been identified as carcinogenic, or possibly carcinogenic, to humans).

NOTICE

WARNING

WARNING

When calling or writing about the boiler

– Please have the boiler model and serial number from the boiler rating plate.

Consider piping and installation when determining boiler location.

Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.

Factory warranty (shipped with unit) does not apply to units improperly installed or improperly operated.

Failure to adhere to the guidelines on this page can result in severe personal injury, death, or substantial property damage.

DO NOT install units in rooms or environments that contain corrosive contaminants (see Table 1A on page 4). Failure to comply could result in severe personal injury, death, or substantial property damage.

Boiler service and maintenance –

•To avoid electric shock, disconnect electrical supply before performing maintenance.

•To avoid severe burns, allow boiler to cool before performing maintenance.

Boiler operation –

•Do not block flow of combustion or ventilation air to the boiler. This boiler is equipped with a control which will automatically shut down the boiler should air or vent be blocked. If vent or air blockage is easily accessible and removable, remove it. The boiler should attempt to restart. If blockage is not obvious or cannot be removed, have the boiler and system checked by a qualified service technician.

•Should overheating occur or gas supply fail to shut off, do not turn off or disconnect electrical supply to the circulator. Instead, shut off the gas supply at a location external to the appliance.

•Do not use this boiler if any part has been under water. The possible damage to a flooded appliance can be extensive and present numerous safety hazards. Any appliance that has been under water must be replaced.

Boiler water –

•Thoroughly flush the system (without boiler connected) to remove sediment. The high-efficiency heat exchanger can be damaged by build-up or corrosion due to sediment.

•Do not use petroleum-based cleaning or sealing compounds in the boiler system. Gaskets and seals in the system may be damaged. This can result in substantial property damage.

•Do not use “homemade cures” or “boiler patent medicines”. Serious damage to the boiler, personnel, and/or property may result.

•Continual fresh make-up water will reduce boiler life. Mineral buildup in the heat exchanger reduces heat transfer, overheats the stainless steel heat exchanger, and causes failure. Addition of oxygen carried in by makeup water can cause internal corrosion. Leaks in boiler or piping must be repaired at once to prevent makeup water.

Freeze protection fluids –

•NEVER use automotive antifreeze. Use only inhibited propylene glycol solutions, which are specifically formulated for hydronic systems. Ethylene glycol is toxic and can attack gaskets and seals used in hydronic systems.

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User’s Information Manual

1 Prevent combustion air contamination

WARNING

WARNING

If the boiler combustion air inlet is located in any area likely to cause contamination, or if products which would contaminate the air cannot be removed, you must have the combustion air and vent re-piped and terminated to another location. Contaminated combustion air will damage the boiler, resulting in possible severe personal injury, death, or substantial property damage.

If the boiler combustion air inlet is located in a laundry room or pool facility, for example, these areas will always contain hazardous contaminants.

Pool and laundry products and common household and hobby products often contain fluorine or chlorine compounds. When these chemicals pass through the boiler, they can form strong acids. The acid can eat through the boiler wall, causing serious damage and presenting a possible threat of flue gas spillage or boiler water leakage into the building.

Please read the information listed in Table 1A. If contaminating chemicals will be present near the location of the boiler combustion air inlet, have your installer pipe the boiler combustion air and vent to another location, per the FTXL Installation and Operation Manual.

WARNING To prevent the potential of severe personal injury or death, check for areas and products

listed in Table 1A before installing the boiler or air inlet piping.

If contaminants are found, you MUST:

•Remove contaminants permanently. —OR—

•Relocate air inlet and vent terminations to other areas.

Table 1A Corrosive Contaminants and Sources

Products to avoid:

Spray cans containing chloro/fluorocarbons

Permanent wave solutions

Chlorinated waxes/cleaners

Chlorine-based swimming pool chemicals

Calcium chloride used for thawing

Sodium chloride used for water softening

Refrigerant leaks

Paint or varnish removers

Hydrochloric acid/muriatic acid

Cements and glues

Antistatic fabric softeners used in clothes dryers

Chlorine-type bleaches, detergents, and cleaning solvents found in household laundry rooms

Adhesives used to fasten building products and other similar products

Areas likely to have contaminants

Dry cleaning/laundry areas and establishments

Swimming pools

Metal fabrication plants

Beauty shops

Refrigeration repair shops

Photo processing plants

Auto body shops

Plastic manufacturing plants

Furniture refinishing areas and establishments

New building construction

Remodeling areas

Garages with workshops

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2 Maintenance schedule

Service technician

(see the FTXL Service Manual)

		General:
		•	Address reported problems
		• Inspect interior; clean and vacuum
			if necessary
		• Clean condensate trap and fill with
			fresh water
		• Check for leaks (water, gas, flue,
			condensate)
		• Verify		flue and	air	lines in		good
			condition and sealed tight
		• Check		system	water		pressure/
			system piping/expansion tank
	UP-	•	Check control settings
		• Check		ignition	and flame sense
	START		electrodes (sand off any deposits;
			clean and reposition)
		• Check wiring and connections
	ANNUAL	•	Perform start-up,			checkout		and
			performance		verification			per
			Section 10 in the FTXL Installation
			and Operation manual
		• Flame inspection (stable, uniform)
		• Flame		signal	(at		least	10
			microamps at high fire)
		• Clean		the heat	exchanger if flue
			temperature is more than 54°F
			(30°C)	above		return		water
			temperature

If combustion or performance indicate need:

•Clean heat exchanger

•Remove and clean burner using compressed air only

•Clean the blower wheel

User’s Information Manual

Owner maintenance

(see pages 6 - 8 for detailed instructions)

		•	Check boiler area
	Daily	•	Check pressure/
			temperature gauge
		•	Check vent pipng
		•	Check air piping
		• Check air and vent a
	Monthly	•	termination screens
		•	Check relief valve
		•	Check condensate drain
			system
		•	Check air vents
	Periodically	• Test low water cutoff
		•	Reset button (LWCO)
		• Check boiler piping (gas and
			water) for leaks
	Every	•	Operate relief valve
	6 months
	End		• Shut boiler down (unless
	of season		boiler is used for domestic
	months		hot water)

WARNING Follow the maintenance procedures given throughout this manual. Failure to perform the service and maintenance or follow the directions in this manual could result in damage to the boiler or system, resulting in severe personal injury, death, or substantial property damage.

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