INSTALLATION INSTRUCTIONS
62-0255-09
PRODUCT DESCRIPTION
The T775 electronic stand-alone controllers are the next
generation of universal controls capable of remote
sensing of temperature, humidity, pressure, etc. and
providing switched and proportional outputs to various
types of loads. A built-in time clock is standard.
The T775U controller allows a wide range of sensors to
be configured. Humidity, pressure, temperature, or any
0-5 Vdc, 0-10 Vdc, or 4-20 mA input is supported.
A Reset function is available where the Sensor B
temperature (e.g. outside temperature) is used to provide
reset control for Sensor A (e.g. humidity). For example,
as the outside temperature gets colder, the setpoint can
automatically be adjusted to prevent condensation.
IMPORTANT
The T775U is an operating control, not a limit or
safety control. If used in applications requiring
safety or limit controls, a separate safety or limit
control device is required.
Table 1. T775U Controller Configurations.
Controller
Modela
aThe T775U includes a digital input for use with the disable or setback option.
Description Replaces
Output
Reset
SPDT
Relay
Outputs
Analog
(Mod)
Outputsb
bThe modulating (analog) outputs may be 4-20 mA, 0-10 Vdc, 2-10 Vdc, or Series 90 selectable.
Sensor
Inputs
Nbr of
Sensors
Included Enclosure
T775U2006
Universal:
Humidity,
Pressure,
Temperature,
etc.
H775A1006
H775A1022
H775A1048
H775A1063
H775B1005
H775C1004c
H775D1003c
H775E1002c
cFor the H775C1004, H775D1003, and H775E1002 model replacement, the T775U only partially replaces the function
of these devices. Check application for suitability.
Yes 2 2 2d
dFor the sensor inputs, Sensor A can be 0-10Vdc, 4-20mA, or a standard temperature input. Sensor B is a standard
temperature sensor input only. Sensor B is used only for reset on the T775U2006.
None NEMA 1
T775U2016 N/A Yes 2 2 2e
eThe T775U2016 can control Sensor A (universal) and Sensor B (temperature) independently, like other standard
T775 controllers.
None NEMA 1