Install Instructions

ManualsBrandsWatts ManualsHeating SuppliesLFN170M3-CSUT, 1" Lead Free Commercial Master Tempering Valve w/ Checkstops

Speciﬁcations

• Maximum Operating Pressure ............................. 125 psig (861 kPa)

• Maximum Hot Water Temperature .......................... 200°F (93°C)

• Minimum Hot Water Supply Temperature ..................... 5°F (3°C) Above Set-Point*

• Temperature Adjustment Range** ........................... 90 - 180°F (32 - 82°C)

• Hot Water Inlet Temperature Range ......................... 120 - 180°F (42 - 82°C)

• Cold Water Inlet Temperature Range ........................ 40 - 80°F (4 - 27°C)

• Listing ................................................ ASSE 1017, IAPMO CUPC

• Approval Standards ..................................... ASSE 1017, CSA B125.3

* With Equal Pressure

** Low limit can not be less than the cold water temperature. For best operation, hot water should be at least 5°F (3°C)

above desire set point.

Basic Installation

ATTENTION INSTALLER: After installation,

please leave this Instruction Sheet for

occupant’s information.

Minimum Flow Requirements to

Maintain Set Temperature

for N170-M3 or LFN170-M3 Series

Valve Size gpm

⁄

" thru 2" (20-50mm) 3 to 7 (11 to 26.5 lpm)

Shutoff Valves

(on both hot

and cold inlets)

Check Valves

(on both hot and

cold inlets)

Storage

Tank

8" to 12"

ASME Pressure

Relief Valve

Cold

† N170-M3

or LFN170-M3

Tempering

Valve

Water Heater

Hot Water Boiler

Drain

To Model

L111, LFL111, MMV or LFMMV

CSA/ASME T&P Valve

Cold

180°F

Thermometer

Tempered 140°F *†

From Cold Supply

To Fixture

Lock Nut

Temperature

Adjusting Screw

Cold

Water

Hot

Water

Actuator

NOTE: Heat trap is recommended.

† Valves listed to ASSE Standard 1016, 1069

or 1070, such as the Watts L111, LFL111,

USG, LFUSG, MMV, or LFMMV should be

used at point of delivery.