Watts LFN170 CSUT - Manual (Page 2)

2
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
C
UPC
• 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
3 ⁄
4
" 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
or
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.