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11.
Plumbing Applications
Cold Water Supply
(Relay for
Pump
NORITZ
> 85 W)
Gas Water
(See p. 23)
Heater
Pressure
Shutoff Valve
Relief
Valve
Hot Water
Drain
Cold Water Supply
NORITZ
Gas Water
Heater
Shutoff Valve
Pressure
Relief Valve
Drain
Shutoff
Valve
Gas
Water
Heater
Mixing Valve
All manuals and user guides at all-guides.com
Recirculation System
Check
Valve
Expansion Tank
(Install According
to Local Codes)
Pump Control Signal
(See p. 23)
Check Valve
Pump
Aquastat
(See notes for Sizing)
(Use Aquastat if Unit Isn't
Controlling Pump)
Optional 30 - 38L
(8-10 Gal.)
Storage Tank
(To Alleviate Cold
Water Sandwich)
Heating System
Backflow
Preventer
(Optional)
Pressure
Reducing
Valve
(Optional)
(Relay for
Check
Pump
Valve
> 85 W)
(See p. 23)
Pump Control signal
(See p. 23)
Check Valve
Aquastat
(Use Aquastat if
Unit Isn't Controlling
Pump)
Expansion
Tank
(Install According
to Local Codes)
Hot Water
Boiler Drain Valve
Cold Water Supply
Tempered Potable Hot Water
Hot Water for Heating
Hot Water Return
Use Honeywell Aquastat
(Model L6006A or L6006C)
Fixtures
Pump
AC120
* Size the pump to provide at least 6L/min. (1.58 GPM) through the system at 30kPa (10')
of Head plus piping losses. Check the maintenance monitors on the unit to make sure the
pump is providing that much flow.
** Adjust the flow using a gate valve and verify the flow rate with the maintenance monitors.
Pump
(See notes for Sizing)
Air Scoop
(Optional)
Heating
Controls
Temp. &
Press. Gauge
(Optional)
* Size the pump to provide at least 6L/min. (1.58 GPM) through the system at 30kPa (10') of
Head plus piping losses. Check the maintenance monitors on the unit to make sure the
pump is providing that much flow.
** Adjust the flow using a gate valve and verify the flow rate with the maintenance monitors.
For Space Heating Purposes:
If the system requires water
for space heating at a higher
temperature than for other
uses, means such as a mixing
valve shall be provided to
temper the water for the other
uses to help prevent scalding.
Aquastat Wiring
105
R
B
5
W
Neutral
Ground
Live
Hot Water Return
Hydronic Heat
Exchanger or
Radiant Heat
Piping
For Baseboard
Applications:
Please contact
Noritz for
compatibility.
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