A.O. Smith THR-160, Инструкция по установке и руководство по эксплуатации и уходу

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4 • Residen al Gas Tankless Water Heater Use and Care Guide
WATER HEATER BASICS
X3 Cartridge
Control Display
Printed Circuit Board
Gas Valve
Fan Motor Assembly
Exhaust Port
Inlet Port
Igniter Rod
Flame Sensor
Gas Valve
Venturi Assembly
Flow Sensor Control
Valve Assembly
Igniter
Condensate Trap
Air Pressure Switch
Bypass Valve
Burner Assembly
Pressure Relief Valve
(M Model: Field Supplied)
Pump
Bypass Cartridge
(M Model: Alternative Configuration)
Heat Exchanger
COMPONENT VIEW (X3® Model Shown)
X3® Technology (X3® Model):
This water heater is equipped with X3 ® Scale Preven on Technology to inhibit scale forma on within the heat exchanger
tubing of this unit. Part of the X3 ® Technology’s an -scale protec on comes from the special X3 ® Cartridge media. The
X3 ® Cartridge must be installed into the manifold located on the underside of the heater cabinet prior to opera on of
the unit. X3 ® Scale Preven on Technology reduces the forma on of scale in the heat exchanger, extending the opera ng
life of the unit in typical potable water installa ons. Speci fi c water condi ons may impact the e ffi ciency of X3 ® , such
as excessive iron or manganese levels. Refer to the guidelines below and consult a water quality expert to determine if
your water is within acceptable X3
® and EPA guidelines. NOTE: Pressure Relief Valve supplied in the box with this model.
Bypass Cartridge (M Model):
The ByPass cartridge will come preinstalled from the factory. Please verify the three screws securing the ByPass
cartridge are ghtened, See Figure 34. NOTE: Pressure Relief Valve will need to be
fi eld supplied with this model.