Powers e420U Series Under-the-Counter Thermostatic Tempering Valves - Manual

Hydroguard Series e420 Under-the-Counter thermostatic tem-
pering valves are designed for all applications where the temper-
ature of generated hot water must be controlled for safe,
economic use. A powerful advanced thermal actuator quickly
senses and compensates for temperature fluctuations induced
by water temperature and pressure changes in the supply line.
Rugged construction features cast brass body and corrosion-
resistant internal components for years of dependable, trouble-
free service. Stem makes temperature adjustment quick and
easy. Hex in with an allen wrench
For restricted access control, the Series e420 UTC valve can be
housed in a stainless-steel or white baked enamel steel cabinet
and can be packaged with solenoid valve(s) (for ESP electronic
faucets), checkstops or other accessories common to Powers’
cabinet supply offering (required to prevent crossflow).
TECHNICAL INSTRUCTIONS
Hydroguard T/P Series e420
Under-the-Counter Thermostatic Tempering Valve
DESCRIPTION
SPECIFICATIONS
Valve Construction:
Under-the-Counter thermostatic mixing valve, with heavy cast bronze body and brass stem with allen wrench adjustment
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2” NPT Inlets and 1/2” NPT Top Outlet
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.25 gpm [19.8 L/min]* (±0.25 gpm [0.94 L/min])
Maximum Hot Water Supply Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190°F [88°C]
Minimum Hot Water Supply Temperature (not applicable to low temperature hot water valve) . . . .5°F [2.8°C] above set point
Maximum Operating Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125 psig [862 kPa]
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90°-110°F Type P/65°–115°F [18°–46°C] Type T
Maximum Static Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125 psig [862 kPa]
Minimum Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.0 gpm [3.8 L/min]
Shipping Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 lbs. [2.3 kg]
The Hydroguard Series e420 Under-the-Counter valves meet the above operating conditions as stated in ASSE 1016 T/P (45 psi pressure
differential, hot water supply between 140°–180°F [60°–82°C], cold water supply less than 70°F [21°C]).
If your operating conditions vary from those stated in the standard, performance may vary as well. Consult your local sales representative or
a Powers factory engineer to discuss your specific application. All Powers Under-the-Counter thermostatic mixing valves perform to the
requirements of standards ASSE 1016 and CSA B125.
* At 45 psi differential [310 kPa], with hot water supply between 140°–180°F [60–82°C] and 50/50 mix.
Shown above: Model e420-RB-E-S-S-O-O
OPERATION
Hot and cold water enter respective ports in the valve and mix
in a chamber containing an advanced thermal actuator (refer
to cutaway view). This actuator controls the valve assembly.
Rotating the adjustment handle repositions the shuttle in the
cartridge assembly to produce the desired temperature. If the
hot or cold supply water temperature or pressure changes, the
thermal actuator will contract or expand. This movement repo-
sitions the shuttle to maintain the desired temperature.
The standard Hydroguard e420 UTC valve is factory set to
deliver tempered water of 110°F [43°C] with equal supply
pressures, with hot water temperature 14O°F [60°C], cold
water temperature 6O°F [15.6°C].
Shutoff Disc
Shuttle
Hot Water Supply
Cold Water Supply
Cartridge
Advanced
Thermal
Actuator
Adjustment
Stem
Form TIE420U