Submittal Sheet

X-XX UL
INSTALLATION INSTRUCTIONS
® U.S. Registered Trademark
Copyright © 1997 Honeywell Inc. • All Rights Reserved
Q769C 0-2 to 10 Vdc Adjustable Adapter
for M7405 and M7415 Actuators
and W7459 Economizer
APPLICATION
The Q769C 0-2 to 10 Vdc Adjustable Adapter is used to
provide a 0-2 to 10 Vdc modulating signal to the M7405
and M7415 Actuators when used with a 0 to 10 Vdc or 2 to
10 Vdc controller. The Q769C can also be used with a
C7150B Temperature Sensor instead of a Q709A to
control the minimum position of an M7405 or M7415
Actuator.
The Q769C maximum power consumption is 0.45 VA
and the housing is Underwriters Laboratories Inc. (UL)
flame rated for 94 V-O. Two female quick connect
terminals on the adapter connect to terminals P and P1
of the actuator. Two male quick connect terminals are
available for field wiring an additional actuator. The
adapter is designed to operate in a -40°F to +125°F (-40°C
to +52°C) temperature range and a 5 to 95 percent
relative humidity (RH) range.
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazard-
ous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Disconnect power supply before making wiring
connections to prevent electrical shock and
equipment damage.
All wiring must comply with applicable electrical codes,
ordinances and regulations.
The Q769C is supplied with female quick connect termi-
nals that fit over 1/4 in. (6 mm) actuator male quick
connect terminals P and P1. Plug the Q769C into the
actuator terminals as shown in Fig. 1. See Fig. 2 for wiring
information.
Installer Adjustment
The Q769C calibration potentiometer can be installer-
adjusted for 0 to 10 Vdc signal by using the following
procedure:
NOTE: The Q769C Adapter is delivered factory-set for 2 to
10 Vdc signal operation.
1 Mount the Q769C Adapter on the M7405/M7415
Actuator; be sure + connects to P1 and - connects
to P. Apply 24 Vac to actuator terminals TR and TR1.
2 Connect a jumper wire between the plus (+) and
minus (-) terminals of the Q769C Adapter.
3 Turn the calibration potentiometer fully clockwise
(cw) .
4 Turn the calibration potentiometer counterclockwise
(ccw) slowly until the actuator just begins to
open.
5 Turn the potentiometer cw slowly until the
motor closes.
6 Remove the jumper wire from the plus (+) and
minus (-) terminals of the Q769C Adapter.
7 Apply a position dc voltage source to the Q769C
Adapter, then remove the source.
8 Check the actuator position. If the actuator is not
closed, turn the Q769C calibration potentiometer
cw slowly until the actuator closes.
MIN
POSN
P1
P
CALIBRATION
POTENTIOMETER
PUSH Q769C
ONTO ACTUATOR
M7590A
0-2V
to 10V
Fig. 1. Mounting Q769C 0-2 to 10 Vdc
Adapter on actuator.
63-2463-1