Network Thermostat GE22-NX User manual

TEMPERATURE ACCURACY
Full temperature accuracy will be realized only after the thermostat has
been installed and powered for at least one (1) hour.
THERMOSTAT AND SENSOR CALIBRATION
Simply press and hold the FAN button for 10 seconds and adjust with
the cor dbutton.
POWER FAILURES
Your thermostat employs the latest in solid state electronic technology.
One of the unique features of your thermostat is that no battery is
required to maintain your selected setpoints in the event of a power loss
as the memory is unaffected by power failures of any duration.
When power is restored, the thermostat will continue operating as if the
power had never been off.
REMOTE SENSOR (OPTION)
RS1 – RS2 – RS+V
The thermostat is designed to accept the electronic remote sensor, which
will allow you to locate your thermostat in an area away from view. Indoor
and outdoor sensors are available separately.
CLOCK TERMINALS (OPTION) CLK1 – CLK2
Your thermostat is equipped with a dry contact closure input. By
connecting to any relay-based controller or clock timer, the thermostat
can be alternated between the day and night (setback) temperature
setpoints automatically.
Upon initial power up of the thermostat, or after a power failure, the ther-
mostat will check the clock terminals and apply the day (open
contact) or night (closed contact) temperature setpoints accordingly.
USER CONTROLS (Cont’d)
OUTDOOR (ODT) BUTTON
When the outdoor temperature sensor is connected to your thermostat,
you can display the current outdoor temperature by pressing the
OUTDOOR button. If the sensor is not connected, the thermostat will
display -- t.
DAY/NIGHT BUTTON
When the thermostat initially is installed, the display will show the e
symbol for your day temperature. By pressing the DAY/NIGHT
button you may select an alternate or night temperature f(the
thermostat will remember this setpoint). Simply press the DAY/NIGHT
button to alternate between temperature settings.
CELSIUS / FAHRENHEIT
Simultaneously press cand dto switch between Celsius (˚C) and
Fahrenheit (˚F) temperature display.
COMMUNICATIONS (OPTION) X1 - X2
The thermostat is designed to accept any of the Net/X family of remote
communications controllers (available separately). The controllers allow
full functionality and control from a distance of up to 1000 feet away.
FAN k
The fan will come on automatically when the system is operating, but
there is no indication of this on the display. To select continuous fan
operation, press the FAN button and the display will show k. This is
recommended for electronic air cleaners and continuous
ventilation requirements.
OFF
To turn off the heating or cooling system, press the MODE button until the
word OFF appears on the LCD. It will remain displayed until the mode is
changed. The OFF mode prevents the system from being energized.
Avoid using the OFF mode during extremely cold weather to prevent
damage to the equipment from freezing.
AUTO CHANGEOVER
You may set the thermostat to switch automatically from heating to cool-
ing mode by pressing the MODE button until the word AUTO and both the
heating iand cooling jicons appear on the LCD. The thermostat will
energize the heating or cooling system based on the temperatures estab-
lished for both modes.
TEMPORARY TEMPERATURE OVERRIDE
WITH KEYPAD LOCKED
(The keypad may be locked to prevent tampering by selecting the ON
position of DIP switch #2.)
If the keypad is locked to prevent tampering you may temporarily adjust
the setpoint by ±3°F of the programmed day setpoint. Press the cor d
button to raise or lower the setpoint for a 1 or 3 hour period, depending
on DIP switch settings.
USER CONTROLS
MODE – Select the desired mode of operation by repeatedly pressing
the MODE button:
j– indicates cooling system only (the word COOL is displayed for
5 seconds)
i– indicates heating system only (the word HEAT is displayed for
5 seconds)
ij– indicates both the heat and cool systems (the word AUTO is
displayed for 5 seconds)
jBlinking – indicates cool ON
iFlickering – indicates heat ON
OFF – disables thermostat so equipment will not operate (fan operation is still
possible in this mode)
COOLING j
Select the temperature you want your equipment to maintain while in the
cooling mode by pressing and holding the cor dbutton. The control set-
point temperature is displayed for 5 seconds.
HEATING i
Select the temperature you want your equipment to maintain while in the
heating mode by pressing and holding the cor dbutton. The control
setpoint temperature is displayed for 5 seconds.
Your new electronic digital thermostat has been designed to provide
accurate control and display of room temperature. In addition, it
also will display all relevant information pertaining to your system.
The clearly marked buttons and informative display make it extremely easy
to understand and simple to use.
Please take a few moments to read the brief instructions and familiarize
yourself with the various functions in order to obtain maximum benefit
from this truly unique electronic control.
GENERAL INFORMATION
The thermostat normally displays room temperature, mode of operation
and whether cooling or heating is currently on. The six buttons on the
front of the unit allow complete control of your equipment.
You may select different heating and cooling setpoints for the system to
maintain, e.g., 70° in heating and 75° in cooling. Raising or lowering the
setpoints in heating or cooling is as simple as pushing a button. In addi-
tion, you may choose to display the temperature in °F or °C.
The thermostat also allows you to select continuous fan operation (useful
when using an air cleaner), or have the fan come on with the equipment.
2 3 4
5 7
1 (One) Year Limited Warranty
The manufacturer warrants to the original purchaser that its product and component
parts will be free from defects in workmanship and materials for a period of 1 (one) year
from the date of purchase. Return to the original point of purchase for replacement of
your product.
Warranty Limitations
This warranty begins at date of purchase.
Warranty is Void if:
The date code is defaced or removed.
The product has a defect or damage due to product alteration, connection to an
improper electrical supply, shipping and handling, accident, fire, flood, lightning, or
other conditions beyond the control of the manufacturer.
The product is not installed according to the manufacturers instructions and specifica-
tions.
The product has been installed near sources of electromagnetic interference (EMI)
such as arcing relay contacts.
Owner’s Responsibility
Provide proof of purchase.
Provide normal care and maintenance.
Pay for freight, labor and travel.
Pay for service calls related to product installation.
Return any defective product.
In no event shall the manufacturer be liable for incidental or consequential damages.
This warranty gives you specific legal rights and you may have others which vary by
state and/or province. For example, some states and/or provinces do not allow the
exclusion or limitation of incidental or consequential damages, so this exclusion may
not apply to you.
The manufacturer’s continuing commitment to quality products may require a change
in specifications without notice.
This equipment, if installed in strict accordance with the manufacturer's instructions,
complies with the limits for a Class B computing device pursuant to Subpart J of Part
15 of FCC rules.
6
SEE REVERSE FOR
INSTALLATION INSTRUCTIONS
GE22-NX
MULTI-STAGE 2 HEAT / 2 COOL
OPERATING INSTRUCTIONS

SPECIFICATIONS
Rated Voltage . . . . . . . .20-30 VAC, 24 nominal
Rated A.C. . . . . . . . . . . .0.050 Amps to 0.75 Amps continuous
Current per output with surges to 3 Amps Max.
Rated D.C. . . . . . . . . . . . 0 Amps to 0.75 Amps continuous
Current per output with surges to 3 Amps Max.
Control . . . . . . . . . . . . . .Heating: 38° to 88°F in 1° Steps
Range 5° to 30°C in 1° Steps
Cooling: 60° to 108°F in 1° Steps
16° to 40°C in 1° Steps
Thermostat
Measurement Range . .28° to 124°F or 0° to 48°C
O.D.T. Displayed
Range . . . . . . . . . . . . . . .-50° to 119°F or -48° to 47°C
Minimum . . . . . . . . . . . .(between heating and cooling)
Deadband 2°F or 1°C
NOTE: This thermostat contains electronic circuitry replacing the
conventional mechanical anticipator.
MST-1 354-00019-001 Rev A
DIP SWITCH OPTIONS AND FUNCTIONS
Positioning the DIP switches in either the ON or OFF position enables you to
choose between two different options. The DIP switches are located on the
interior of your thermostat and may be accessed by following the procedure for
removing the thermostat from the subbase. The following list describes your
DIP switch options.
DIP Switch DIP Switch OFF DIP Switch ON
1
2
3
4
5
6
7
8
Not used (OFF position)
1 hour override
4 minute minimum ON
Keypad Unlock
Fan on with heat call
Single Stage
LED #1+No Icon
LED #2+No Icon
Not used (keep OFF)
3 hour override
2 minute minimum ON
Keypad Lock
Fan on with plenum switch
Multi-stage
LED #1+ BFilter icon
LED #2+ AFault icon
1. Not Used This switch must remain in the OFF position.
2. Temperature Override Sets a temperature override to either 1 hour or 3
hours when the keypad is locked.
3. 2 Minute or 4 Minute On Times This option allows you to run the equip-
ment for either a 2 or 4 minute minimum off and on time.
4. Keypad Lock zIn the ON position locks out all buttons except the
OUTDOOR temperature button.
5. Plenum Fan Switch In the OFF position, the fan comes on immediately
with a call for heat. In the ON position, the fan is controlled by the equipment
(plenum switch control).
6. Single or Multi-stage This option allows you to select up to two (2) stages
of heating and cooling.
7. LED #1 + Indication In the OFF position LED #1 will light when the
terminal is energized. In the ON position LED #1 will light and a Filter Bicon
will be displayed on the LCD when the terminal is energized.
8. LED #2 + Indication In the OFF position LED #2 will light when the
terminal is energized. In the ON position LED #2 will light and a Fault Aicon
will be displayed on the LCD when the terminal is energized.
TERMINAL DESIGNATIONS
W2.............Energizes on a call for second stage heating
Y2..............Energizes on a call for second stage cooling
W1.............Energizes on a call for first stage heating
Y1..............Energizes on a call for first stage cooling
G...............Fan operates with a call for heating or cooling or by
pressing the FAN button.
R................Power from equipment
24V............24 VAC hot and common to power the thermostat
24V(c)
RS2............Use to connect up to 6 (XC-IDS) indoor and/or 1
RS1 (XC-ODT) outdoor remote sensor/s.
RS+V When connected the thermostat will automatically use the
XC-IDS temperature sensor and not its own.
Refer to the instructions included with the sensor.
LED1..........Free lights for status or function indication
LED2
CLK1..........Use with dry contact relay for alternate setpoints
CLK2
X1..........Remote communications. Refer to the instructions included
with the remote communications adapter and software.
X2..........X1 return, connected to 24V(c)
Replacing the Thermostat on Subbase
1. Position the thermostat on the hinged
tabs at the top of the subbase.
2. Gently swing the thermostat down
and press on the bottom center until it
snaps into place.
Thermostat Cover Lock
Insert the plastic lock piece into the
bottom of the mounted base. The ends
of the lock piece fit snugly under the
lock pins extending from the bottom of
the mounted base. The tab in the mid-
dle of the lock piece extends down from
the base.
To release the locking mechanism, press
the lock piece up and into the base while
gently prying open.
Thermistor Mounting Instructions
When placing the front cover on the ther-
mostat ensure the thermistor is not bent
or misaligned.
Ensure that the thermistor does not
touch the thermostat case. The thermis-
tor should be placed horizontal to the
wall. Ensure the thermistor is not pushed
upward into the case.
The thermistor should be aligned so it is
visible between the ribs on the bottom of
the subbase.
Removing the Thermostat from the Subbase
1. Insert a flat blade screwdriver or coin 1/8" into the slot located in the bot-
tom center of the thermostat case and twist 1/4 turn. When you feel or
hear a click, grasp the case from the bottom two corners and
separate from the subbase.
2. Swing the thermostat out from the bottom.
3. Lift the thermostat up and off the subbase.
4. Place the rectangular opening in the subbase over the equipment
control wires protruding from the wall and, using the subbase as a
template, mark the location of the two mounting holes (exact vertical
mounting is necessary only for appearance).
5. Use the supplied anchors and screws for mounting on drywall or
plaster. Drill two 3/16" (5mm) diameter holes at the marked locations; use
a hammer to tap the nylon anchors in flush to the wall surface and fasten
subbase using the supplied screws. (Do not overtighten!)
6. Connect the wires from your system to the thermostat terminals. Carefully
dress the wires so that any excess is pushed back into the wall cavity or
junction box. Ensure that the wires are flush to the plastic subbase. The
access hole should be sealed or stuffed to prevent drafts from affecting
the thermostat.
INSTALLATION INSTRUCTIONS
It is recommended that installation be performed by a qualified installer.
Location
To ensure proper operation, the thermostat should be mounted on an
inside wall in a frequently occupied area of the building. In addition, its
position must be at least 18" (46cm) from any outside wall, and approxi-
mately 5' (1.5m) above the floor in a location with freely circulating air of
an average temperature. You should avoid the following locations:
- behind doors or in corners where freely circulating air is unavailable;
- where direct sunlight or radiant heat from appliances might affect con-
trol operation;
- on an outside wall;
- adjacent to, or in line with, conditioned air discharge grilles, stairwells,
or outside doors;
- where its operation may be affected by steam or water pipes or warm
air stacks in an adjacent partition space, or by an area behind the ther-
mostat which is not climate controlled;
- where its operation will be affected by the supply air of an adjacent cli-
mate control HVAC device;
- near sources of electrical interference such as arcing relay contacts.
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16151413
10 DESCRIPTION OF ICONS
Display icons vary according to the model. Your thermostat may not
display all of the icons shown.
WIRING DIAGRAM
Note: If the 24V(c) is not available from the equipment the shunt may be removed and
a seperate 24V transformer must be used to power the thermostat.
This thermostat may be used with 24 Volt DC. The negative side of the DC
supply must be wired to the 24V (c) terminal.
GE22-NX