At all times the correct method for handling heavy objects should be strictly observed. GENERAL HANDLING GUIDELINES: • Lift only a manageable weight, or ask for help. • When lifting, bend the knees, and keep the back straight and feet apart. • Do not lift and twist at the same time. • Lift and carry items close to the body. • Wear protective clothing and gloves to protect from any sharp edges. PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE STARTING INSTALLATION. THESE INSTRUCTIONS ARE APPLICABL

Air Vents 125B (10 . X 10 . in. each) Air Vents 125B (5 . X 5 . in. each) Appliances located in confined spaces: The confined space must be provided with two permanent openings, one commencing within 12 inches of the top and one commencing within 12 inches of the bottom of the enclosure. Each opening must have a minimum free area of one square inch per: -1000 Btu/hr if all air is taken from inside the building. -2000 Btu/hr if all air is taken from the outside by horizontal ducts. -4000 Btu/hr i

The pilot button ( ) should be held down at least 15 seconds with pilot burning. When the pilot button is released the pilot should continue to burn. -If the gas valve button does not pop up when released, stop and immediately call your service technician or gas supplier. -If pilot does not stay lit, repeat steps 1 through 6. -If pilot will not stay lit after several tries, depress the OFF button ( ), and call your service technician or gas supplier. 7. When lit, depress the ON button ( ). The h

Horizontally venting to a sidewall vent terminator or a vertically constructed vent stack along an outside wall of a building is not permissible. A Powervent (Model AQ-1), with a proof-of-draft safety interlock device, is required and is available in order to sidewall vent. Contact your dealer. In the Commonwealth of Massachusetts: Powervented applications must utilize proof-of-draft safety interlock device. VERTICAL GAS VENT: A 5 inch diameter gas vent constructed of double wall Type B gas vent

Then tighten down the lock nut. Caution: Never back the adjuster nut downward to the last thread unless the thermostat is being replaced. This is a gas seal. WATER IS NOT HOT ENOUGH 1. Water flow rate is too high. Decrease the flow rate. 2. Btu input is too low due to insufficient gas pressure It is extremely important for a tankless instantaneous water heater to have the right size gas line to obtain the correct gas pressure 6 720 606 518 See specifications on page 2. Unlike storage tank water

These water flow related problems can cause the heater to deliver less than its full output, or to fail to ignite or to shut down completely. Problems are stated in upper case, bold face. Most common causes for the problems follow in order of likelihood. The suggested solutions require that the cover be taken off. To do this, pull off the temperature knob and unscrew and remove the temperature knob collar. Pull main cover out toward you and lift up and out. NO SPARK AT THE PILOT 1. On/Off switch

The heat exchanger coils absorb the heat generated by the burners and transfer heat to the water. When the hot water faucet is shut off, the gas valve automatically closes and the burners turn off, followed immediately by the exhaust system. Your hot water faucet is an ignition key to turn on the water heater, giving you control over your hot water energy use. Every time you turn off your hot water faucet, the energy consumption for hot water returns to zero. FEATURES -Electronic Pilot Ignition

Refer to this manual. For assistance or additional information consult a qualified installer, service agency or the gas supplier. Upon completion of the installation, these instructions should be handed to the user of the appliance for future reference. In the Commonwealth of Massachusetts this product must be installed by a licensed plumber. FEATURING: Automatic Variable Power Modulating Gas Valve and power generated Electronic Ignition WARNING If the information in this manual is not followed

Every 3-5 years replace component 36 on page 16. The frequency will depend on the mineral content of the water and conditions of use or whenever signs of corrosion appear at the gas and water valve joint. Periodically check that the water inlet filter (#27 on page 16) is clean as well. NOTE: If water valve is removed, be sure to also inspect the o ring seal on the end of the right hand side water pipe before re-installing. Lubricating the o ring with lithium or faucet and valve grease is recomme

Minimum 9.0 kW Minimum 14.0 kW Minimum 19.1 kW Maximum 14.0 kW Maximum 19.1 kW Maximum 23.5 kW 9/14CBi LPG14/19CBi LPG19/24CBi LPGMinimum 10.0 kW Minimum 14.0 kW Minimum 19.1 kW Maximum 14.0 kW Maximum 19.1 kW Maximum 23.5 kW IMPORTANT: THESE INSTRUCTIONS APPLY IN THE UK ONLY AND MUST BE LEFT WITH THE USER OR AT THE GAS METER Read the instructions before starting work - they have been written to make the installation easier and prevent hold-ups. Contents 1. Installation Regulations. . . . . . .