STI 7520-HTR - Manual (Page 2)

ILLUSTRATION 3 ILLUSTRATION 4
Safety Technology International, Inc.
2306 Airport Road • Waterford, Michigan 48327-1209
Phone: 248-673-9898 • Fax: 248-673-1246
Toll Free: 800-888-4784 • E-mail: [email protected]
Web: www.sti-usa.com
Safety Technology International (Europe) Ltd.
Unit 49G Pipers Road • Park Farm Industrial Estate • Redditch
Worcestershire • B98 0HU • England • Tel: 44 (0) 1527 520 999
Fax: 44 (0) 1527 501 999 • Freephone: 0800 085 1678 (UK only)
E-mail: [email protected] • Web: www.sti-europe.com
5. Mount the heater plate assembly to the back box with
control thermostat toward bottom of enclosure (see
Illustration 2). Be sure to route wires for electronic device
through the hole in the center of the heater plate before
attaching heater plate. For vertical mounting (hinges to
right or left side) be sure control thermostat is towards
the bottom of the enclosure.
6. Connect the electronic device and mount to the heater
plate in mounting holes indicated using #6 - 32 x 1/2”
screws (2) provided.
NOTE: If moisture buildup occurs, drill a weep
hole on bottom side of back box.
4. Connect heater power and control wires.
a. Connect low temperature monitor terminals to supervisory panel
if used (see Illustration 3).
b. Connect power terminals to power source. 12-24 volt AC/DC.
• Heating capacity is determined by input voltage. Be sure
the power source has enough capacity to support the load
at the input voltage.
12 Volt, 19 WATTS
16.5 Volt, 36 WATTS
24 Volt, 77 WATTS
• 16.5 VAC adapter included
“HEAT ON”
RED LED
“POWER ON”
GREEN LED
CONTROL THERMOSTAT
CLOSED @ 50°F
OPEN @ 70°F
#6-32 THREADED HOLES
FOR MOUNTING ELECTRONIC
DEVICE (6 PLACES)
SUB-7520-HTR
(FRONT VIEW)
DEVICE WIRING
ACCESS HOLE OVER TEMP SAFETY
THERMOSTAT
OPEN @ 120°F
CLOSED @ 90°F
LOW TEMP WARNING
THERMOSTAT
CLOSED @ 32°F
OPEN @ 50°F
RESISTOR HEATER
SUB-7520-HTR
(BACK VIEW)
TERMINAL BLOCK
(4 CONNECTION)
1/8 in. THICK ALUMINUM
MOUNTING PLATE
LED CONTROL
JAN2010 7520HTR INSTALL