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Fig. 2

- 5 -

1200HTR  Figure 2

#6-32 x 1 in. PAN

HEAD SCREW

(4) PROVIDED

.375 in.  STANDOFF

(4) PROVIDED

DUAL MONITOR 

ADDRESSABLE MODULE

(NOT INCLUDED)

VENT SLOTS

(DO NOT COVER

WITH PULL STATION)

24 VDC TERMINAL BLOCK

PULL STATION

(NOT INCLUDED)

#8-32 x .375 in.

FLAT HEAD SCREW

SLIDE PLATE

HIGH VOLTAGE TERMINAL BLOCK

FAN  

WARM AIR DUCT

(DO NOT COVER

WITH PULL STATION)

COVER AND HEATER ASSEMBLY

#6-32 x 1 in. PAN

HEAD SCREW

(4) PROVIDED

3/8 in.  STANDOFF

(4) PROVIDED

 DUAL MONITOR

ADDRESSABLE MODULE

(NOT INCLUDED)

24 VDC TERMINAL BLOCK

PULL STATION

(NOT INCLUDED)

#8-32 x 3/8 in.

FLAT HEAD SCREW

SLIDE PLATE

HIGH VOLTAGE TERMINAL BLOCK

FAN  

WARM AIR DUCT (DO NOT COVER

WITH PULL STATION)

VENT SLOTS

(DO NOT COVER

WITH PULL STATION)

COVER AND HEATER ASSEMBLY

        

 

IN CA

SE O

F

PULL

FIRE

        

 

IN CA

SE O

F

PULL

FIRE

         

IN CA

SE O

F

PULL

FIRE

Wiring

7.  Wire one channel of the dual monitor module to the low temp warning terminals (pins 1 & 2) on the 24 VDC 

terminal block.  Wire the other channel to the fire alarm terminals (pins 5 & 6) on the same terminal block.  Add 
any end of the line devices as required for the alarm system.

8.  Connect wires from alarm panel to the dual monitor module according to design specifications.  Connect 

continuous 24 VDC supply to fan power terminals (pins 3 & 4) of the 24 VDC terminal block.

 

Note:

  1.  Fan is polarity sensitive and must be connected correctly for fan to operate.
  2.  Fan operates continuously.
9.  Connect the 110 or 240 VAC supply to the high voltage terminal block pins 4, 5, and 6. Earth Ground, AC Low, 

and AC High respectively.

10. Attach the heater and cover assembly to the back box with (4) #8-32 x 3/4” socket cap screws and (4) #8 flat 

washers.

11. Record installation date in space provided on the label located on underside of cover.  Unit is ready for testing.
12. Turn all power to “ON” position.

 

Note:

  Fan runs continuously.  This system requires three sources of power:

1.   110 or 240 VAC heater on the load side of the fuse holder.
2.  24 VDC power source for the circulating fan. Check fan to see if operating; if not check polarity and reverse, 

then try again.

3.   Fire alarm initiating circuit and temperature warning monitor.

Summary of Contents for Stopper II Series

Page 1: ...o provide a degree of protection against rain sleet and damage from external ice formation Fan runs continuously to maintain a uniform temperature inside the enclosure Heater units cycle as required to maintain the correct range of operating temperatures Three year guarantee against breakage of polycarbonate in normal use one year on electro mechanical and electronic components UL ULC Listing does...

Page 2: ... boîtier est utilisé pour protéger les dispositifs de déclenchement homologués UL 38 et 2017 à des températures allant jusqu à 70 F 57 C Il incombe à l installateur de se conformer aux articles 725 et 760 de la NEC 70 NFPA 72 et aux autres codes de prévention des incendies et de l électricité en vigueur Les chemins des conduites ou canalisations doivent être scellés aussi proche que possible du bo...

Page 3: ...ox 20 inches 5 1mm cover 12 inches 3 1mm NEMA Rating 3R Warranty Lifetime against breakage in normal use STI 1200A HTR 110 VAC 50 60 Hz UL Recognized Component STI 1200 A HTR240 240 VAC 50 60 Hz UL Recognized Component 100 Watts Life 10 C 14 F 70 C 158 F 5 Years Duty Cycle 40 F 40 C 16 79 F 57 C 38 99 F 73 C 100 Silicone Laminate Heater 24 VDC 10 90 mA UL Recognized Component Life 5 Years Continuo...

Page 4: ...OVIDED 3 Pull 24 VDC and alarm wiring into back box through top conduit and pull 110 or 240 VAC wiring into back box through bottom conduit per NFPA 70 NEC and local codes Note Wire size to be 12 22 AWG Install Fire Alarm Pull Station and Dual Monitor Module to Heater and Cover Assembly Refer to Fig 2 4 Lift the cover from heater assembly and allow it to hang from cables Connect the provided high ...

Page 5: ...specifications Connect continuous 24 VDC supply to fan power terminals pins 3 4 of the 24 VDC terminal block Note 1 Fan is polarity sensitive and must be connected correctly for fan to operate 2 Fan operates continuously 9 Connect the 110 or 240 VAC supply to the high voltage terminal block pins 4 5 and 6 Earth Ground AC Low and AC High respectively 10 Attach the heater and cover assembly to the b...

Page 6: ...AN HEAD SCREW 4 PROVIDED 3 8 in STANDOFF DUAL MONITOR ADDRESSABLE MODULE NOT INCLUDED LOW TEMP WARNING THERMOSTAT 24 VDC TERMINAL BLOCK PULL STATION NOT INCLUDED 8 32 x 3 8 in FLAT HEAD SCREW SLIDE PLATE HIGH VOLTAGE TERMINAL BLOCK FAN CIRCUT BREAKER COVER AND HEATER ASSEMBLY IN C A S E O F P U L L F I R E GASKET 3 4 in NPT MALE NIPPLE NOT PROVIDED SEALING HUB NOT PROVIDED Product Assembly ...

Page 7: ...NG 16 33VDC 600mA LOW VOLTAGE CIRCUIT HIGH VOLTAGE CIRCUIT TERMINAL BLOCK TERMINAL BLOCK CHASSIS HEATER CLOSE 40 F 4 C OPEN 65 F 18 C OPEN 120 F 40 C CLOSE 80 F 27 C OPEN 50 F 10 C CLOSE 32 F 0 C 24VDC 10 90mA FROM MONITOR MODULE TO TEMP WARNING FROM MONITOR MODULE TO MANUAL STATIONS EARTH GROUND MANUAL STATIONS 110 OR 240 VAC 50 60 Hz 100 WATTS ...

Page 8: ... usa com Taylor House 34 Sherwood Road Bromsgrove Worcestershire B60 3DR England Tel 44 0 1527 520 999 Fax 44 0 1527 501 999 info sti emea com www sti emea com Warranty Three year guarantee against breakage of polycarbonate in normal use one year on electro mechanical and electronic components Electronic warranty form at www sti usa com wc14 USA Headquarters ...

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