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Install proper drainage for discharge of temperature and pressure relief valves per 
local code when relief occurs and do not reduce or restrict line. Discharge line shall 
be installed to allow complete drainage of both valve and line. See the page for relief 
valve discharge.
Do not  place  a  valve  between  the  combination  temperature  and  pressure relief 
valve and the water heater.
    Improper venting of a water heater can result in excessive levels of 
    Carbon Monoxide which can result in severe injury or death!
    This water heater must be vented in accordance with the “Venting of 
    Equipment” section of ANSI Z223.1 / NFPA 54 National Fuel Gas 
    Code – latest versions, or in Canada, the most recent version of   
    CAN/CGA B149.1 Natural Gas and Propane Installation Code. In 
    additional,  all  installations  must  completely  comply  with  all   
    applicable  local  building  codes.Failure  to  comply  can  result  in   
    equipment failure, fire, personal injury or death!
    Use only stainless steel vent materials with this model! Plastic vent 
    systems are not compatible and the failure of the vent system could 
    result indamage, equipment failure, personal injury or death.
- For best results always minimize the length of the vent system. Keep the vent pipe 
routing as short and straight as possible.
- The water heater vent must not be combined with the vent from any other gas 
appliance or vent stack.
- The water heater vent must not be connected to a chimney.
- You must use vent components that are certified for use with this water heater as 
indicated  within  this  manual.  Do  not  combine  components  from  multiple 
manufacturers.
    Ensure any leak check solution is non-corrosive and is completely 
      rinsed  from  the  piping  after  leak  check  is  complete. 
Corrosion of the     gas  piping  and  subsequent  leaks  could  occur. 
Never use flammable     solutions or an open flame to test for gas leaks!
1. All piping, including soldering material, and components connected to this heater 
shall be approved for use in potable water systems.
2. If the heater has ever been previously used for heating non-potable water, never 
install the heater later into a potable water system.
3.  The  installation  of  manual  shutoff  valves,  drain  valves  and  unions  are 
recommended. A professional should review each installation and ensure adequate 
ability to isolate, drain, and disconnect heater for service needs.
4. Connect suitable piping from water supply to the water heater. Note, water heater 
connections are ½” NPT.
5. Purge the water line to remove debris and air. Debris can plug and damage the 
heater.
6. Test water connections for leaks. Turn on water and purge water through the 
water heater and system. Flow for 1-2 minutes. Ensure all air is eliminated.
7. After filling and flushing the system, check the inlet water filter for debris and clean 
as required.
8. Consider insulation on hot water piping for energy conservation and personal 
protection. Do not insulate the pressure relief valve! 
    This  unit  requires  an  approved  temperature  and  pressure  relief   
    valve. For protection against excessive temperatures and pressure, 
    install temperature and pressure protective equipment required by 
    local codes. The relief valve must be installed near the hot water   
    outlet and must comply with Standard for Relief Valves for Hot Water 
    Supply Systems, ANSI Z21.22 CSA 4.4.