Instructions / Assembly

ScaleShield / SS-HB-1 & SS-HB-2
Installation / Operating Instructions
Inlet/Outet
Female
3/4”NPT
Transparent
Cartridge
Housing
HydroBlend
Cartridge
4 ”
12 ”
Unit Description
Noritz’s ScaleShield Water Conditioning System is a unique product providing superior limescale
prevention and corrosion control. The Scale Shield conditions water at a constant rate resulting
in consistent scale prevention and corrosion control for predictable periods of time. ScaleShield
works by:
• Keeps scale-causing minerals in solution inhibiting limescale formation.
In many cases, the ScaleShield Water Conditioning Systems offer many of the same advantages
as conventional water softening systems, except at a lower cost with little professional
maintenance. When it comes to protecting your Noritz tankless water heater, no other product
offers the level of protection from limescale and corrosion than ScaleShield.
•
•
•
Changes the shape of precipitated limescale preventing accumulation.
Coats wetted surfaces with a micro-thin layer that acts a shield.
Helps soften and remove existing limescale over time.
Unit
Model
NR66 & NR71 Series
NR83 & NR98 Series
NR111, NRC111,
NCC199, & NC250 Series
NC380 Series
Whole House / Commercial
SS-HB-1
SS-HB-2
Contact Noritz
Description
Installation on cold-water line feeding tankless water heater only.
Selection Guide
Prior to Installing System:
1. The ScaleShield water conditioning system must be installed on a cold-water line prior to the tankless water heater.
The unit will treat either the hot side only, or the whole house. Refer to the selection chart on the opposite page to
ensure the correct cartridge is being used.
2. Determine the flow direction of the incoming water line. The unit is shipped with mounting bracket attached with the
inlet port on the left side. If needed, remove and reverse the mounting bracket for right side inlet port configuration.
3. It is recommended that a 3-way by-pass be used on all installations in order to isolate the system for maintenance.
The use of unions is also recommended. Refer to bypass diagrams below.
4. Observe water pressure. If pressure exceeds 125 psi, use a pressure regulator prior to the system.
5. Securely mount the system using supplied bracket whenever possible.
6. The system must be installed with the cartridge and sump directly below the feed head.
7. Install the system where the housing is in an accessible location for cartridge change. Allow a 2” space under the
cartridge housing in order to unscrew it from the head.
Connection and Start- Up:
1. Turn off water supply.
2. Use either Teflon tape and/or pipe dope on 3/4” male threaded fittings prior to connecting them to the female
threaded ports on the system head. Do not over tighten the fittings into the ports.
3. Do not sweat fittings close to the system head unless precautions are taken against excessive heat.
(Continued on other side)
Installation on cold-water line feeding tankless water heater only.
2 units required on cold-water line feeding tankless heater only.
Models
Max. Pressure
Max. Temperature
Connection Size
Accessories
Cartridge
Specifications:
125psi
100°F
3/4” Female NPT
3 Way Bypass Valve
HBC-1
SS-HB-1 SS-HB-2
125psi
100°F
3/4” Female NPT
3 Way Bypass Valve
HBC-2
Refer to the above selection guide to ensure the correct application od ScaleShiel unit(s).
Important Note: Do not install
the ScaleShield unit where it is
exposed to direct sunlight. If
installed outdoors, ensure the
system is covered or insulated
from exposure to direct sunlight
and/or to protect it from freezing.