WHAT TO DO IF YOU SMELL GAS: .. Do not try to light any appliance. .. Do not touch any electrical switches; do not use any phones in your building. .. Immediately call your gas supplier from a neighbor’s 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. WARNING: Improper installation, adjustment, alteration, service, or maintena

WHAT TO DO 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 neighbor’s 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 gas supplier. WARNING: Improper installation, adjustment, alteration, service or maintenance can cause in

See Accessories, page 16. Figure 7 -Gas Connection * Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 14. ** 11” W.C. pressure is the minimum inlet pressure for purpose of input adjustment. WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas. gauge hook up. NPT tap must be upstream from heater (see Figure 7). controls. If sediment trap is not installed or is installed incorrectly, h

WARNING: This is an unvented gas- fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to Air For Combustion and Ventilation section on page 4 of this manual. Do not store, or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electrical switch; do not use any phone in

IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent. *A CSA/AGA design-certified WARNING: Never install equipment shutoff valve with 1/8" the heater NPT tap is an acceptable in a bathroom(Models alternative to test gauge connection. ML100HPA and ML100TPA , Purchase the optional CSA/AGA only ML060HPA is allowed in a design certified equipment bathroom. Check local codes.)

The pilot is attached to the front of burner. If needed, keep pressing ignitor button until pilot lights. Note: If pilot does not stay lit, refer to Troubleshooting, pages 14 through 16. Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match.To light pilot with match, see Manual Lighting Procedure. 7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. If control knob does not pop

Rooms communicating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space. This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. * Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them. DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Deter