T775P Series 2000 Electronic
Stand-Alone Controller
Controller Model Description
Boiler
a
T775P2003
Model
with Reset
a
The T775P model can be used to stage multiple relays from a single heat or cool setpoint. The number of stages can be freely chosen, limited
by the number of relays available (up to 12 stages [11 if using the pump output] using two T775S expansion modules).
b
The T775P provides a pump output using the last of the four SPDT relay outputs on the T775P controller. When T775S Expansion Modules are
used, the configurable pump output is the last relay output of the last expansion module. The pump output will be either stage 4, 8, or 12,
depending on whether T775S Expansion module(s) are used.
c
The T775P includes a digital input for use with the disable or setback option.
Table 1. T775P Controller Configuration.
Output
SPDT Relay
Digital
Reset
Outputs
Output
Yes
b
4
E4436
INSTALLATION INSTRUCTIONS
PRODUCT DESCRIPTION
The T775 electronic stand-alone controllers are the next
generation of commercial and agricultural controls
capable of remote sensing of temperature and providing
switched and/or proportional outputs to various types of
loads. A built-in time clock is standard.
The T775P can be configured with or without Reset
control from a single heat or cool setpoint.
Three sensors are configurable. In normal installations,
Sensor A is the supply controlled temperature, Sensor B
is the outdoor controlling (reset) temperature, and
Sensor C is the return controlled temperature, which can
be used for the Differential alarm and/or as the controlled
setpoint sensor.
The T775P can be configured with up to two T775S
Expansion Modules for a maximum of up to 12 stages
with the last stage being an option for a pump stage.
IMPORTANT
The T775P 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.
Number of
Digital
Sensor
Input
Inputs
1
3
c
1
Sensors
Stage
Addable
Included
Control
T775S
3
Yes
Yes
Enclosure
NEMA 1
62-0256-11
Need help?
Do you have a question about the T775P 2000 Series and is the answer not in the manual?
Questions and answers