FM/1STUZH-120 Grasslin, FM/1STUZH-120 Datasheet - Page 2

• Manufacturer Part Number: FM/1STUZH-120
• Description: Module, Timer; Surface Mount; 1/4 in. Quick-Connect; SPDT; 120V
• Manufacturer: Grasslin
• Type: Timerr

Specifications of FM/1STUZH-120

• Application: Control of heating, ventilating, air conditioning, refrigeration, lighting, security and circulating pumps
• Brand/series: FM/1 Series
• Contact Form: SPDT
• Current, Rating: 21 A
• Dimensions: 2.36"L×2.36"W×1.25"H
• Frequency: 50⁄60 Hz
• Horse Power Rating: 1 HP
• Mounting Type: Panel
• Output Type: Digital Switch
• Primary Type: Controller
• Standards: UL, CSA, CE
• Switch Type: SPDT
• Temperature, Ambient, Maximum: 140 °F
• Temperature, Ambient, Minimum: -20 °F
• Termination: Quick Connect
• Voltage, Rating: 120 VAC
• Voltage, Supply: 120 VAC
• Spdt Switch Rating: 21 A @ 250 VAC Resistive; 2 HP, 240 V; 1 HP, 120 V Motor
• Wiring Connections: 1⁄4" Quick Connects
• Size: 2.36" × 2.36" × 1.25"

TIME SETTING
TO SET THE CURRENT TIME (AND DAY OF WEEK
ON 7 DAY UNITS), TURN THE MINUTE HAND
CLOCKWISE. DO NOT SET THE TIME BY ROTAT-
ING “OUTER” DIAL.
Turn the minute hand clockwise until the day of the week
(7-day timer) and the time of day on the outer dial is
aligned with the triangle marker on the inner dial (two
o'clock position).
Example for 7-day program dial Monday 10:30 AM. Turn the
minute hand clockwise until Monday 10:30 AM is aligned
with the triangle on the inner dial. The hour and minute hand
will show exactly 10:30.
Example for 24-hour program dial 10:30 AM. Turn the minute
hand clockwise until 10:30 AM is aligned with the triangle on
the inner dial. The hour and the minute dial will show exact-
ly 10:30.
PROGRAMMING
7-Day (SW, QRW Models)
The weekly program dial reflects the seven days of the week
and AM/PM imprints for each day.
The time switch is programmed by pushing the captive trip-
pers to the outer ring position for the entire period that the
load is to be turned “ON”, i.e., two hours for each tripper on
the 7-Day dial. When the tripper is pushed to the inside, the
switch is in the “OFF” position.
24-Hour (ST, QRT Models)
The 24-Hour dial has quarter-hour divisions and AM/PM indi-
cations.
The time switch is programmed by pushing the captive trip-
pers to the outer ring position for the entire period that the
load is to be turned “ON”, i.e., fifteen minutes for each trip-
per on the 24-Hour dial. When the tripper is pushed to the
inside, the switch is in the “OFF” position.
Intermatic Incorporated • Spring Grove, IL 60081 • www.intermatic.com
FM/1 synchronous/quartz
Dimensions
PROGRAMMING WITH MANUAL
OVERRIDE SWITCH
AUTOMATIC MODE
In order to operate the time switch module in the automatic
mode, the manual switch must be in the center position (auto-
matic) - see diagram.
MANUAL MODE
With the manual switch selector lever the selected programs
can be overridden. In the lower position, marked “O”, termi-
nals 3 and 5 are permanently closed. In the upper position,
marked “I”, terminals 3 and 4 are permanently closed (see
diagram).
3-way manual
override switch
Override Mode
I = permanent ON
0 = permanent OFF
= automatic
300GR10020