Lochinvar MFH-I&S-02 Installation & Service Manual

GAS WATER HEATER
If the information in these instructions is not followed exactly,
a fire or explosion may result causing property damage, personal
injury or death.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable, combustible, or
corrosive 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
telephone in your building.
• Immediately call your gas supplier from a neighbor's
telephone. 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.
For your family's comfort, safety and convenience, we recommend
this water heater be installed and serviced by a plumbing
professional.

TABLE OF CONTENTS

GENERAL INFORMATION .......................................................... 1
INSTALLATION ..................................................................... 2
Locating The Water Heater ............................................... 2
Minimum Clearances ......................................................... 2
Venting ........................................................................... 3
Combustion Air Supply ..................................................... 3
Water Connections .......................................................... 4
Gas Connections .............................................................. 5
Gas Conversion Instructions ............................................. 5
GENERAL OPERATION .............................................................. 6
Lighting and Shutdown Instructions .................................. 6
Thermostat Adjustment .................................................... 7
Burner Flame Check .......................................................... 7
MAINTENANCE ........................................................................ 7
TYPICAL INSTALLATION INSTRUCTIONS ..................................... 8
GENERAL INFORMATION
This gas-fired water heater is design certified by underwriter's laboratories in
accordance with the HUD Manufacturer Home Construction and Safety Standard,
Title 24, part 3280.
The warranty for this water heater is in effect only when the water heater is
installed, adjusted, and operated in accordance with these Installation and
Operating Instructions. The manufacturer will not be liable for any damage
resulting from alteration and/or failure to comply with these instructions.
INSTALLATION & SERVICE MANUAL
MANUFACTURED HOME (MOBILE HOME)
WARNING
This water heater must be installed in accordance with local codes. In the
absence of local codes, it must be installed in compliance with The Federal
Manufactured Home Construction and Safety Stand Title 24 CRF, part 3280 or
CAN/CSA Z240 MH series, mobile home. In the absence of such standard, The
Standard for mobile Homes (ANSI/NFPA No. 601B-1977).
This water heater is of the closed combustion type (direct venting) where all the
combustion air is supplied from the outdoors through the air intake and all
combusted gas products are vented directly to the outside by means of the
roof jack. No draft diverter (vent hood) is required for this water heater.
Underwriters Laboratories, Inc. has tested a representative sample of this
water heater design for its safety of operation. The ULA listing of this water
heater includes the field installation of the following components: roof jack, leg
enclosure (optional), air intake tube (optional), and heater tie down materials.
These components for field installation may have been shipped with this heater
and must be installed according to the instructions (see page 8). No other
components are approved for use with this water heater.
This water heater has been designed and certified for the purpose of heating
potable water. The installation and use of this water heater for any purpose
other than the heating of potable water may cause damage to the water
heater, create a hazardous condition, and nullify the warranty.
Incorrect operation of this appliance may create a hazard to
life and property and will nullify the warranty.
Do not use this appliance if any part has been submerged in water. You should
contact the plumbing professional who installed the water heater to inspect the
appliance and to replace any part of the control system including the combination
gas control which has been submerged in water.
Do not store or use gasoline or other flammable, combustible, or
corrosive vapors and liquids in the vicinity of this or any other
appliance.
IMPORTANT
Before proceeding, please inspect the water heater and components for
possible damage. DO NOT install any damaged components. If damage is evident
then please contact the supplier where the water heater was
purchased or the manufacturer listed on the rating plate for replacement parts.
This water heater has been manufactured for operation at altitudes from sea
level to 2000 feet (610m) (unless otherwise specified on the water heater
rating plate). For use of this appliance at an elevation greater than 2000 feet
(610m), contact the dealer or manufacturer listed on the rating plate for
information on any necessary modification. Uncorrected operation of this
appliance may create a hazard to life and property.
1
MFH-I&S-02
CAUTION
DANGER