IBC EX 850 Leitfaden

User's Information Manual

EX SERIES

Commercial Boilers

EX 700

EX 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.

Do not store or use gasoline or other flammable vapors and liquids or other combustible

materials in the vicinity of this or any other appliance.

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 nearby 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.

Water quality

Warning

Water quality has a significant impact on the lifetime and performance of a boiler's heat exchanger.

Improperly prepared water in a heating circuit may cause damage to the heat exchanger through

fouling or corrosion. Repeated or uncontrolled water fills will increase the potential for damage.

High levels of dissolved solids or minerals may precipitate out of the fluid onto the hottest part of the

heat exchanger, impairing heat transfer and resulting in overheating and premature failure. The

amount of solids that may form on the heat exchanger will depend on the degree of hardness and

the total water volume in the system. A high water volume system with a low hardness count may

cause as much damage as a system with less volume and higher hardness, so it is recommended

to treat water so as to remove all dissolved solids. Other water chemistry allowable limits are as

follows:

Acidity pH is to be between 6.6 and 8.5

Chloride is to be less than 125 mg/l

Iron is to be less than 0.3 mg/l

Cu less than 0.1 mg/l

Conductivity is to be less than 400μS/cm (at 77°F [25°C])

Hardness is to be 7 Grains or less

Important: Ensure that these limits are acceptable for the other water-side components in the

system.

Contents

Safety information 3

Manual safety markings 3

Important safety instructions 3

Domestic hot water 6

Boiler operation 8

Lighting and shutting down the boiler 8

Service and maintenance 9

Maintenance checklists 9

Relief valve - maintenance and testing 11

Blocked vent safety system 11

Revision history 12

Intentionally left empty

Safety information

Manual safety markings

Danger

Points out an immediate hazardous

situation that must be avoided to

prevent serious injury or death.

Warning

Points out a potential hazardous situation

that must be avoided to prevent serious

injury or death.

Caution

Points out a potential hazardous

situation that must be avoided to

prevent possible moderate injury

and/or property damage.

Note

Points out installation, maintenance and

operational notes to enhance efficiency,

longevity and proper operation of the

boiler.

Important safety instructions

Installation, start-up and servicing of IBC boilers must be performed by competent, qualified, licensed and

trained heating technicians.

Failure to read and comply with all instructions and applicable national and local codes may result in

hazardous conditions that could result in property damage and injury to occupants, and in extreme cases to

death. Keep instructions near the air handling unit for future reference.

Danger

Should overheating occur or the gas supply fails to shut off, do not turn off or disconnect the

electrical supply to the pump. Instead shut off the gas supply at a location external to the

appliance.

Warning

Keep boiler area free and clear of combustible materials, gasoline, and other flammable vapors

and liquids.

Warning

Combustion air must not be drawn from areas containing corrosive air from swimming pools or

spas, including air directly next to outdoor pools and spas.

Warning

The boiler must not be exposed to water leaks from piping or components located overhead. This

includes condensation dropping from un-insulated cold water lines overhead.

Warning

In areas of high snow fall, users must check side wall exhaust vent and air intake terminations

on a regular basis to ensure blockages do not occur.

Warning

Do not use this boiler if any part has been under water. Immediately call a qualified service

technician to inspect the boiler and to replace any part of the control system and any gas

control that has been under water.

Warning

Improper installation, adjustment, alteration, service or maintenance can cause property

damage, personal injury, or loss of life. Read and understand the entire manual before

attempting installation, start-up, operation, or service. Installation and service must be

performed only by an experienced, skilled installer or service agency.

Failure to follow all instructions in the proper order can cause personal injury or death. Read

all instructions, including all those contained in component manufacturers’ manuals before

installing, starting up, operating, maintaining, or servicing the unit.

Warning

Close fill valve after any addition of water to the system, to reduce risk of water escapement.

Warning

Disconnect power supply before any wiring/service is performed. Failure to do so could result

in damage to unit and/or electric shock.

Caution

The boiler must be installed so that electrical components are not exposed to water during

operation.

Section: Contents

Caution

The heat exchanger has a small amount of combustion chamber insulation (refractory), which

contains ceramic fibers. When exposed to extremely high temperatures, the ceramic fibers, which

contain crystalline silica, can be converted into cristobalite - which is classified as a possible

human carcinogen.

Care should be taken to avoid disturbing or damaging the refractory. If damage occurs, contact

the factory for directions. Avoid breathing and contact with skin and eyes and follow these

precautions:

1. For conditions of frequent use or heavy exposure, respirator protection is required. Refer

to the “NIOSH Guide to the Selection and Use of Particulate Respirators Certified under

42 CFR 84” for selection and use of respirators certified by NIOSH. For the most current

information, NIOSH can be contacted at 1-800-356-4676 or on the web at

www.cdc.gov/niosh.

2. Wear long sleeved, loose fitting clothing, gloves and eyes protection.

3. Assure adequate ventilation.

4. Wash with soap and water after contact.

5. Wash potentially contaminated clothes separately from other laundry and rinse washing

machine thoroughly.

6. Discard used insulation in an air tight plastic bag.

NIOSH stated first aid:

Eye contact - Irrigate and wash immediately.

Breathing - Provide fresh air.

Known Corrosive Contaminants to Avoid

Cements and glues

Paint or varnish removers

Adhesives used to fasten building products and other similar products

Chlorinated waxes or cleaners

Chlorine-based swimming pool chemicals

Calcium chloride used for snow and ice clearing

Sodium chloride or potassium chloride used for water softening

Safety information

Known Corrosive Contaminants to Avoid

Refrigerant leaks from cracks in coils

Hydrochloric acid or muriatic acid used in household cleaning and stain removal

Chemicals in perming solutions

Chlorofluorocarbon chemicals found in spray cans

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

Antistatic dryer sheets in clothes dryers

Domestic hot water

Warning

HOT WATER CAN SCALD!

Water Temperatures over 125°F / 52°C can cause severe burns instantly or death from scalds.

Children, disabled, and elderly are at highest risk of being scalded.

Never leave then unattended in or near the shower, bathtub or sink.

Never allow small children to use a not water faucet or draw their own bath.

To avoid any potential scald hazard or if codes require specific water temperatures at the hot

water faucet, the installer must:

Install a thermostatic mixing valve at the outlet of the Domestic Hot Water Indirect

Water Heater outlet and ensure it is working properly.

AND

Set the thermostatic mixing valve to the lowest temperature which satisfies your hot

water needs.

To avoid injury:

Feel and adjust water temperature before bathing or showering.

Water drained from the system drain valve may be extremely hot.

Make sure all connections are tight.

Direct water flow away from any person.

Section: Contents

Warning

Bacteria growth can develop in domestic hot water tanks and indirect water heaters if the

minimum water temperature is not set high enough to prevent its growth.

Domestic hot water

Boiler operation

Lighting and shutting down the boiler

Section: Contents

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