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4. Local codes shall take priority over any inconsistency in these instructions.
5. During startup, you must ensure that the valve is set to the desired temperature (the mixing valve
preset is 120
o
F). If the valve temperature needs to be adjusted, please refer to the mixing valve
instructions and/or the following settings.
Hotter water increases the risk of scald injury. Scalding may occur within 5 seconds at a setting of
140
o
F (60
o
C). Water temperature over 125
o
F can instantly cause severe burns, or death, from
scalds. Children, disabled, and elderly are at the highest risk of being scalded. See instruction
manual before setting temperature at water heater. Feel water before bathing or showering!
This water heater can deliver scalding temperature water at any faucet in the system. Be careful
whenever using hot water to avoid scalding injury. By setting the thermostat on this water heater to obtain
increased water temperature, you may create a higher potential for scald injury. To protect against injury,
you should install an ASSE approved thermostatic mixing valve (a device to limit the temperature of water
to protect against scaled injury by mixing hot and cold water supply) in the system. This valve will reduce
point of discharge temperature in branch supply lines. This water heater was shipped with an ASSE
approved thermostatic mixing valve. Install this valve according to the directions in the mixing device
container. DO NOT OPERATE THIS WATER HEATER WITHOUT AN ASSE APPROVED
THERMOSTATIC MIXING DEVICE. If this water heater was shipped without an ASSE approved
thermostatic mixing valve, contact the manufacturer.
Mixing Valve Specification
Max. Hot Water Inlet Temperature 210
o
F
Min. Cold Water Inlet Temperature 39
o
F
Inlet Pressure 200 PSI
Outlet Water Temperature Range 85
o
F – 150
o
F
Min. Temperature Differential 20
o
F
(Between Hot Supply and Outlet)
Performance –
CV – ½” 3.3
Max Flow – 1” 24 gpm
The mixing valve maintains a constant outlet temperature of +/– 5˚ F given limited variation of water inlet
temperature and pressure.
NOTE: At low flow operation, the outlet temperature may vary slightly more.
Differential pressure at the valve inlet should be within a 5 to 1 ratio under normal flow conditions.
Inline fittings, pipe work, layout and sizing must be taken into consideration. In installations where the
valve is supplied with unbalanced hot cold pressures greater than a 5 to 1 ratio, please call HTP
Technical Support Department.
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