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Honeywell TH4110U Thermostat Installation Guide

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INSTALLATION INSTRUCTIONS

UT-SWM

UNIVERSAL THERMOSTAT

SMART WIRE MODULE

INTRODUCTION:

The UT-SWM, Universal Thermostat Smart

Wire Module is an innovative and low-cost

solution for applications where you need to

control as many as ﬁve outputs across a single

pair of wires between the thermostat and an

indoor AHU. Today’s communicating

thermostats require a “common” wire to power

the radio module and other electronics. On

average, 30% of all homes do not have a

common wire at the thermostat. The UT-SWM

uses two advanced microprocessors; one

located in the Sender Module and the other in

the Relay Receiver Module. Signals from the

device connect to the sender Module such as a

thermostat are encoded along with checksum

data to ensure accuracy and superimposed

onto the 24 volt signal wires that transmit to the

Relay Receiver Module. The Relay Receiver

Module then decodes and veriﬁes the binary

data and turns relays on or oﬀ to match the

Sender Module information.

RECEIVER MODULE

UT-SWM

Sender Module

SENDER MODULE

RELAY RECEIVER MODULE

The Relay Receiver Module receives its power

by an external 24VAC source such as the

HVAC equipment transformer. The Relay

Receiver Module contains ﬁve relays rated at 1

Amp maximum switching current. The relays

mimic the switched inputs of the Sender

Module.

IMPORTANT NOTE:

The 24VAC used to power the Relay Receiver

Module is also transmitted down two wires to

power the Sender Module.

This product only works reliably with

thermostats using mechanical relays.

Thermostats that use Triacs are not

recommended. Refer to speciﬁc thermostat

speciﬁcations to conﬁrm relay or Triac

operation.

DO NOT power high current draw devices such

as actuators and valves directly from this

device as it has been designed to provide a

maximum of 0.5A to power ﬁeld devices that

are 500mA max. When switching higher

voltages or currents, proper rated isolation

relays are required.

SENDER MODULE:

The Sender Module has been designed to be

as small as possible and is sealed to protect its

electronics. There are eight color coded, 6”

lead input wires on one end and two screw

terminals on the other end.

The Relay Receiver Module should be installed

in a cool, dry environment wherever possible.

Although the electronics are coated to protect

against moisture and dust, they are not water

resistant and should be protected from a harsh

environment.

The Sender Module can be easily installed in

the wall cavity behind the thermostat after

wiring is completed. This prevents any heat

generated by the module from aﬀecting the

thermostat’s temperature accuracy.

NOTE - Because the Sender Module is

intentionally small to facilitate ease of

installation, care should be used to not

bend the Module during installation.

The process of decoding and verifying the

binary data creates a very short delay in relay

response time.

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General	Details
Name	Honeywell TH4110U Thermostat Installation Guide
Make	Honeywell
Language	English
Filetype	PDF (Download)
File size	0.59 MB

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Honeywell TH4110U Manual: Questions and Answers

Honeywell TH4110U specifications

Power supply	24VAC +/- 20%
Power consumption	0.15mA (No Relays)
Warranty	1 Year

Full specifications, page 2

What is the maximum switching current rating for each relay in the Honeywell TH4110U?

Each of the five relays is rated at 1 Amp maximum switching current. Installation Guide, p. 1

How do I install the Sender Module of the UT-SWM behind my thermostat?

After wiring is complete, place the sealed Sender Module in the wall cavity behind the thermostat to prevent its heat from affecting temperature accuracy.

Complete all wiring connections to the module's color-coded input wires and screw terminals.
Position the module in the wall cavity behind the thermostat location.
Handle carefully to avoid bending the intentionally compact module. Installation Guide, p. 1

Can I power high current draw devices like actuators and valves directly from the UT-SWM?

No. The device supplies maximum 0.5A for field devices rated 500mA max. For higher voltages or currents, use properly rated isolation relays. Installation Guide, p. 1

How do I wire the 24VAC and common connections on the UT-SWM Sender Module?

Connect the red 24VAC wire and black common wire to the two screw terminals on the Sender Module. Installation Guide, p. 1

What does each color-coded wire on the UT-SWM Sender Module represent?

Wire Color	Terminal Tag and Function
Green	G - Fan
Yellow	Y1 - 1st Stage Cool
White	W1 - 1st Stage Heat or Auxiliary/Emergency Heat
Purple	Y2 - 2nd Stage Cool
Brown	W2 - 2nd Stage Heat or Reversing Valve
Red	R - 24VAC (Hot)

Installation Guide, p. 2

Should the UT-SWM Relay Receiver Module be installed in a specific environment?

Install the Relay Receiver Module in a cool, dry environment whenever possible. Although electronics are coated against moisture and dust, they are not water resistant and must be protected from harsh conditions. Installation Guide, p. 1