Weil-McLain 80, 230, 310 Please read before proceeding, When servicing boiler, Boiler operation

GAS-FIRED WATER BOILER — Boiler Manual

Please read before proceeding

Installer— Read all instructions, including this manual, the Ultra Control Supplement and Ultra Vent Supplement, before installing. Perform steps in the order given.

User — This manual is for use only by a qualified heating installer/service technician. Refer to User’s Information Manual for your reference.

User — Have this boiler serviced/ inspected by a qualified service technician, at least annually.

Failure to comply with the above could result in severe personal injury, death or substantial property damage.

The boiler contains ceramic fiber materials. Use care when handling these materials per instructions on page 29 of this manual. Failure to comply could result in severe personal injury.

When calling or writing about the boiler— Please have the boiler model number from the boiler rating label and the CP number from the boiler jacket. You may list the CP number in the space provided on the Installation and service certificate found on page 27.

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.

Commonwealth of Massachusetts

When the boiler is installed within the Commonwealth of Massachusetts:

•This product must be installed by a licensed plumber or gas fitter.

•If antifreeze is used, a reduced pressure back-flow preventer device shall be used.

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

When servicing boiler —

•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 boiler.

•Should overheating occur or gas supply fail to shut off, do not turn off or disconnect electrical supply to 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. 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.

Boiler water —

•The Ultra heat exchanger is made of aluminum, and requires that system pH always be between 7.0 and 8.5 and water chemistry be checked. Chemical treatment may be necessary. See page 24 for details.

•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 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 boiler, personnel and/or property may result.

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

•Do not add cold water to hot boiler. Thermal shock can cause heat exchanger to crack.

Freeze protection fluids —

NEVER use automotive or standard glycol antifreeze, even glycol made for hydronic systems. Use only freeze-protection fluids recommended in the Ultra Boiler Freeze Protection Supplement.

Follow all guidelines in the Ultra Boiler Freeze Protection Supplement. Thoroughly clean and flush any replacement boiler system that has used glycol before installing the new Ultra boiler.

Part number 550-101-233/0903 5