Instructions / Assembly

CONTENTS
CONTENTS
Thermostat Common Wire Kit
Diode ‘Y’
Wire Nuts
1
1
4
QUANTITY
!
THERMOSTAT COMMON WIRE KIT
INSTALLATION INSTRUCTIONS
THERMOSTAT COMMON WIRE KIT
INSTALLATION INSTRUCTIONS
SA11
IMPORTANT: Read entire instructions before starting the
thermostat.
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all local
electrical codes during installation. All wiring must conform to local
and national electrical codes. Improper wiring or installation may
damage sensor.
Recognize safety information. This is the safety alert symbol. When
the safety alert symbol is present on equipment or in the instruction
manual, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and CAUTION. These
words are used with the safety alert symbol. DANGER identifies the most
serious hazards which will result in severe personal injury or death.
WARNING signifies a hazard that could result in personal injury or death.
CAUTION is used to identify unsafe practices which would result in
minor personal injury or property damage.
!
GENERAL
In applications where additional wiring cannot be run, the Thermostat
Common Wire Kit can be used to add a wire to the thermostat. The
accessory is also used to fix a broken wire, to make one thermostat
work like two, add cooling to a heat only system, or add a common
wire to a 4-wire system (the green and yellow wires of the Diode ‘Y’
may not be connected to the R or C terminal of the thermostat).
INSTALLATION
Step 1 – Location - The Thermostat Common Wire Kit can be mounted
inside the HVAC unit or inside the control box. The Thermostat Common
Wire Kit should not be installed in a location where the accessory or
wiring may be exposed to the elements. Wires running from accessory
are 9-in. Long. Thermostat Common Wire Kit should be within 9-in. Of
thermostat connections to HVAC terminal block.
If required, mount the Thermostat Common Wire Kit with 2 screws (not
provided). See Fig. 1.
Step 2 – Wiring Requirements – The Thermostat Common Wire Kit
wiring has the following requirements:
1. All system wiring must be in compliance with all applicable
local and national codes.
2. All wiring should be color coded in conformance with standard
recommendations.
3. All wiring should be 18- 22-gage, unshielded wire. The
Maximum distance between the accessory and the thermostat for
18-gage wire is 100ft. The maximum distance between the
Accessory and the thermostat for 22-gage. Wire is 36 ft.
Step 3 – Accessory Wiring – The Thermostat Common Wire Kit wiring
has the following requirements:
Depending on the application and the usage of the Thermostat Common
Wire Kit, wiring will vary. Refer to the wiring diagrams in
Fig. 2-5for more information on wiring the accessory.
• The BLUE wire of the Thermostat Common Wire Kit must
always be connected to the BLUE wire of the Diode ‘Y’.
• DO NOT connect the Thermostat Common Wire Kit BLUE, GREEN,
or YELLOW wires to the R and C terminals of the HVAC unit, damage
may result.
• The GREEN and YELLOW wires of the Diode ‘Y’ should be regarded
as extensions of the yellow and green wires of the Thermostat
Common Wire Kit. For example, if the YELLOW wire on the Diode ‘Y’ is
connected to terminal W on the thermostat to control heat, the
YELLOW wire on the Thermostat Common Wire Kit must be connected
to W on the HVAC unit to control heat. If the GREEN wire on the Diode
‘Y’ is connected to terminal G on the thermostat to control the fan,
the GREEN wire on the Thermostat Common Wire Kit must be
connected to G on the HVAC unit to control the fan.
• Use the wirenuts for wire connections to the Diode ‘Y’.
• The wiring diagrams are examples of the uses of the Thermostat
Common Wire Kit. Each example may have more than one method of
connection that will work. An experienced installer may use different
combinations to achieve desired results.
• Do not connect the green and yellow wires of the Diode ‘Y’ to the R
or C terminal of the thermostat.
Before installing Thermostat Common Wire Kit, turn off all
power to the unit. There may be more than one power
disconnect. Electrical shock can cause injury or death.
WARNING
4 existing wires with Thermostat Common Wire Kit to accommodate a
single stage heat pump. A jumper is required across
the ‘Y’ and ‘O’ thermostat terminals.
C
c
F
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Add-A-Wire
XX-XXXXA
MODEL NUMBER
Add Jumper
HVAC
GREEN
BROWN
YELLOW
RED
THERMOSTAT
GREEN
YELLOW
BLUEBLUE
A d d -A -W ir e ™
R
G
O
Y
C
R
G
Y
C
THE FOUR EXISTING
THERMOSTAT WIRES
O
SA11
THERMOSTAT
COMMON WIRE KIT
Diode ‘Y’
THERMOSTAT
COMMON WIRE KIT
Diode ‘Y’
THERMOSTAT
COMMON WIRE
ACCESSORY