User Guide

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER
63-2248—4
4
Mounting Sensor in T7047C1090 Case
쐃 Run wires from T775J through wall.
쐇 Mount case to wall with screws provided.
쐋 Connect wires from the T775J to two T terminals on the
T7047C Case.
 Cut and strip 193987GA Sensor leads to 3 to 4 inch (76
to 102 mm) length and connect to T terminals in the
case.
 Position sensor as shown in Fig. 3; assemble cover and
tighten cover screws.
CAUTION
1. Make sure that metal tube of sensor does not short
against T terminals in wall-mounted case.
2. Do not run sensor wiring (even if using shielded
cable) with building power wiring.
Wiring
CAUTION
Disconnect external power before wiring to prevent
electrical shock or equipment damage.
IMPORTANT
The T775J is not intended for safety limit
applications. It is an operating control, not a safety
control.
Disconnect external power before wiring to prevent electrical
shock or equipment damage. All wiring must comply with
applicable local codes and ordinances.
Refer to Fig. 4 for locating the appropriate power inputs,
remote sensor inputs, relay, modulating output terminals,
contact closure input, and sensor selection switch. Access the
terminals through standard conduit knockouts (A-C) located
around the enclosure perimeter.
NOTE: Hole A should only be used for remote sensor
wiring, low voltage wiring, and access to modulating
output.
When wiring the input power, only one source of power can
be applied to the T775J (e.g., 24 or 120 or 240 Vac).
Knockouts B and C can be used to gain access to 120 or 240
Vac input terminals and the load relay output terminals.
The T775J can be used to provide reset control of damper
and valve actuators that accept 4 to 20 mA, 0 to 18 Vdc or
Electronic Series 90 modulating inputs, and to control one on-
off load. Depending on the application and the motor or
actuator used, the T775J can control up to three Modutrol
motors by using resistor kits that are available as accessories
for existing motors. Use specified resistor kits to control an
Electronic Series 90 (Modutrol®) Motor with a 4 to 20 mA
controller. Obtain information on these kits from either the
TRADELINE® catalog, motor specification or your local
distributors. See Fig. 7 through 15 for typical T775J wiring and
applications.
M8109C
193987GA
SENSOR
T7047C1090
WALLMOUNT SENSOR
CASE (OPTIONAL)
CAUTION: POSITION SENSOR AWAY
FROM SCREW TERMINALS.
SCREW
TERMINAL
SCREW
TERMINAL
LEADWIRES
TO T775
Fig. 3. Sensor mounted on wall.
M5249
SENSOR PLACED
IN WELL
IMMERSION
WELL
1/2 NPT
COVER SENSOR
LEADS WITH
HEAT CONDUCTIVE
COMPOUND
Fig. 4. Sensor inserted in immersion well.