Laars U.H.E. - Installation Manual User 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

UNPACKING INSPECT SHIPMENT carefully for any signs of damage. 1. All equipment is carefully manufactured, inspected and packed. 2. Any claims for

Figure 3b. Recommended Minimum Clearances For Service Access REMOVE CRATE 1. Remove all banding and pry off crate sides carefully so as not to da

DANGER Temperature setting should not exceed safe temperature at fixtures. See water temperature control warning on page 16. If higher preheat tem

3. If the water heater is installed as a direct vent (outside air piped directly to the water heater), then additional opening, other than the openin

Figure 6. Typical Two Water Heater Connection Figure 7. Typical Three Water Heater Connection Figure 8. Typical Four Water Heater Connectio

SECTION V: WATER CONNECTIONS WARNING Failure to install and maintain a new, listed temperature and pressure relief valve will release the manufact

The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the

Figure 11. Typical Plumbing Schematic for Zoned Heating SECTION VI: VENTING WARNING The vent system must be properly installed. Failure to prop

CAUTION Check to make sure flue gases do not recirculate into the air intake terminal when using direct venting. If the water heater is having

Figure 12a. Vent Terminal Clearances (Other than Direct Vent or “Power Vented” Installations) Canadian Installations1 US Installations2 Can

SECTION I: IMPORTANT INFORMATION njury hazards. Indicates an imminently hazardous situation, which, if not avoided, will result in

Figure 12b. Direct Vent Terminal Clearances Canadian Installations1 US Installations2 Canadian Installations1 US Installations2 A= Clearan

The vent system must terminate so that proper clearances are maintained as cited in local codes or the latest edition of the National Fuel Gas Code,

2. Use the proper PVC cement to secure the 90° exhaust vent and air intake terminals provided with the water heater to the plastic pipes. The dist

Figure 14. Typical Vertical Direct Vent System Installation Through The Wall Venting With Low Ground Clearance: When venting cannot exit through

Maximum Vent Length: Direct Vent Maximum Vent Length (Combined Maximum Length for Intake and Exhaust) Storage Capacity (Gallons) Rated Input(BTU/HR)

NOTICE This unit can be vented using only PVC (Class 160, ASTM D-2241 Schedule 40, ASTM D-1785; or Cellular Core Schedule 40 DWV, ASTM F-891), Schedu

Figure 16. Typical Horizontal Power Vent System Vertical Installation: Vertical venting must be supported every 5 feet of vertical run and every 3

Follow the following procedure to vent through the roof: 1. Cut the necessary holes through the roof and ceiling 2. Install the exhaust vent and air

Figure 18. Vent Terminal (Low Ground Clearance) Maximum Vent Length Determination Power Vent Maximum Vent Length Storage Capacity (Gallons) Rate

MULTIPLE INTAKE/EXHAUST TERMINAL SEPARATION DISTANCES Note: When installing multiple intake/exhaust terminals o

DANGER DO NOT store or use gasoline or other flammable, combustible, or corrosive vapors and/or liquids in the vicinity of this or any other app

CONCENTRIC VENT TERMINAL INSTALLATION PROCEDURE WARNING Improper installation, adjustment, service, or maintenance can cause property damage, person

Figure 21. Rain Cap to Small Vent Pipe Ass’y 5. Install concentric Y fitting and pipe assembly through the structure’s hole and field-sup

NOTICE Position termination where vent vapors will not damage plants/shrubs or air conditioning equipment. Position termination where vent vapors wil

INITIAL PREPARATION 1. Make sure the solvent cement you are planning to use is designed for the specific application you are attempting. 2. Know the

CAUTION The water heater and individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of the

SECTION VIII: ELECTRICAL CONNECTIONS WARNING Turn off or disconnect the electrical power supply to the water heater before servicing. Label all wi

SECTION IX: OPERATING INSTRUCTIONS WARNING Water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stor

LIGHTING INSTRUCTIONS Figure 26. Lighting Instruction Label TEMPERATURE ADJUSTMENT The temperature selector knob of the thermostat has been adjust

Condensation does not mean your tank is leaking. Most of reported tank leaks on installation are proven to be condensation. To avoid unnecessary inc

SECTION X: MAINTENANCE DANGER DO NOT ATTEMPT TO REPAIR GAS VALVE. DO NOT ATTEMPT TO REPAIR IGNITION MODULE. DO NOT ATTEMPT TO REPAIR VENTURI. DO NO

WARNING This water heater needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilati

DRAINING WATER HEATER The water heater must be drained if it is to be shut down and exposed to freezing temperatures. Maintenance and service proced

ANODE INSPECTION AND REPLACEMENT This water heater is equipped with multiple sacrificial anodes. Anodes protect the glass-lined tank from corrosion

Figure 28. Powered Anode locations DRAIN VALVE AND TANK ACCESS PANEL The water heaters are equipped with a ¾ inch drain valve. An access panel co

COMBUSTION SYSTEM INSPECTION Inspect the operation of the combustion system monthly. Use the following procedure to inspect the combustion system.

SECTION XII: PARTS LIST 44 Ultra High Efficiency Water Heater 1 Combustion Surround Ass'y 2 Burner Ass'y (Specify Model) 3 2nd Pa

Customer must specify complete model number and serial number when ordering service parts. 1 Combustion Surround Ass&apos

2 Combustion Ass'y (pictured previous page) 1A Combustion Ass’y (Specify Model) 15A Gasket Blower Transition (Specify Model) 2A Blower/Gas

NOTES 47

NOTES 48800.900.9276 • Fax 800.559.1583 (Customer Service, Service Advisors)20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax 603.335.335

SECTION II: SPECIFICATIONS Figure 1. Dimensional Layout Recovery GPH At Degree Rise DIMENSIONS ( INCHES ) Storage Volume Capacity Gall

SECTION III: GENERAL INFORMATION FEATURES This water heater contains the following features: MAIN POWER ON/OFF SWITCH – The front panel of thi

TEMPERATURE AND PRESSURE RELIEF VALVE – pu s, o ! CONDENSATE DRAIN - The water heater should either be raised several

Figure 2. Condensate Elbow With Trap CLEANOUT – All models are equipped with a cleanout opening to aid in removal of hard water deposits from the

SECTION IV: INSTALLATION INSTRUCTIONS This water heater must be located in an area where leakage of the tank