Han L62 Manual

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Download Application manual of Honeywell T775U2006 Controller, Control Units for Free or View it Online on All-Guides.com. This version of Honeywell T775U2006 Manual compatible with such list of devices, as: T775U2006, T775M2048, T775M2030, T775B2032, T775A2009

Brand: Honeywell

Category: Controller , Control Units

Type: Application manual

Model: Honeywell T775U2006 , Honeywell T775S2008 , Honeywell T775R2043 , Honeywell T775R2035 , Honeywell T775R2027 , Honeywell T775R2019 , Honeywell T775R2001 , Honeywell T775P2003 , Honeywell T775M2048 , Honeywell T775M2030 , Honeywell T775M2022 , Honeywell T775M2014 , Honeywell T775M2006 , Honeywell T775L2007 , Honeywell T775B2040 , Honeywell T775B2032 , Honeywell T775B2024 , Honeywell T775B2016 , Honeywell T775A2009 , Honeywell T775 Series 2000 How to delete softnyx account.

Pages: 56 (2.65 Mb)

T775 SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS

T775 APPLICATIONS

Controller – T775B

Water is circulated in a loop to remove waste heat and to

provide cooling from a multiple heat pump system. In this

example, the T775B controls heating and cooling systems to

maintain the loop water temperature between preset upper

and lower limits. Alarms are sounded to annunciate

NOTE:T775R reset models can also be used in this

Sensor Designation

This device application only requires one sensor. Sensor A is

mounted in a well, located in the main loop water line, before

Operation

In this example, if the loop water temperature drops to 55° F

(13° C), heat is added to the system by the boiler (Relay 1)

until it reaches the setpoint. If the temperature drops further,

Relay 2 sounds the low temperature alarm at 54° F (12° C).

If the loop water temperature rises to 95° F (35° C), Relay 3

brings on cooling. If the temperature rises to 96° F (36° C),

NOTE: If no alarms are present, relays 2 and 4 may be used

Programming Example

Program for:

—Setpoint = 65° F (18° C)

Relay 2:Low temperature alarm circuit

—Heat

—Differential = 1° F (-17° C)

Program for:

—Setpoint = 85° F (29° C)

Relay 4:High temperature alarm circuit

—Cool

—Differential = 1° F (-17° C)

Setpoints may differ according to equipment manufacturers.

IMPORTANT

After the desired value is selected, be sure to press

value in the controller’s memory.

All output relays should have a common power wiring source,

which may or may not be the same as the T775 power wiring.

Fig. 3. T775B wiring — loop water controller.

(HOT)

SENSOR A

HI TEMP

RELAY

SUBTRACT

LO TEMP

ADD

RELAY

T775B

COM

120 VAC

POWER WITH 24 VAC OR 120/240 VAC AT THE APPROPRIATE TERMINAL BLOCK.

Han L62 Manual

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