Network Thermostat TEC-N2 Series User manual

1
www.networkthermostats.com
Note: In this document, Building Automation System (BAS) is a generic
term that refers to the Metasys® Network (Network Control
Module [NCM] or N30 series), Companion™, and Facilitator™
supervisory systems. The specific system names are used when
referring to system specific applications.
The TEC-N2 series includes two nonprogrammable models: multi stage
heat pump (HP32-N2) and multi stage gas/electric (GE22-N2). The appli-
cations include furnace, air conditioner, heat pump, and rooftop units.
The TEC-N2 incorporates fuzzy logic for precise control in a thermostat
type package.
All TEC-N2s have Metasys N2 communication capability. This communi-
cation allows the user to view and adjust parameters from a remote work-
station. It also provides information, such as outside air temperature, to the
TEC-N2 units on the bus. The thermostat is easy to operate and normally
displays room temperature and mode of operation using cooling (j) or
heating (i) icons. When there is a call for cooling, the snowflake icon (j)
blinks. Likewise, on a call for heating, the flame icon (i) blinks. When the
temperature is satisfied, neither will blink. In the auto mode, both icons
(ji) display continuously when satisfied. Light-emitting diodes (LEDs)
on the top of both models use binary inputs (BIs) to indicate a clogged fil-
ter and external service. A unique temperature alarm (BI 2) indicates that
the zone temperature has not been satisfied in 45 minutes.
IInnttrroodduuccttiioonn
DDeessccrriippttiioonn
TEC-N2 Series Thermostat
Used to display outside
temperature (optional).
LEDs indicate system activity
or problems (see Table 3).
Used to select heating, cooling,
auto, off, or emergency heat
(E ht; available on HP32-N2
only) mode of operation.
Used to run fan
continuously.
Used to alternate between
day and night setpoints.
Time occuppied mode when
keyboard locked.
Used to increase/decrease values
or change between °C or °F.
Outdoor
Day/Night
Mode
Fan
}
75
Figure 1: TEC-N2
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2TEC-N2 Series Thermostat
Table 1: Specifications
Product HP32-N2 Thermostat with N2 Bus, 3 Heat/2 Cool Heat Pump
GE22-N2 Thermostat with N2 Bus, 2 Heat/2 Cool
Compatibility GE22-N2 TEC1101-1 (Johnson Controls)
TEC1103-1 (Johnson Controls)
HP32-N2 TEC1102-1 (Johnson Controls)
Power Requirements 20-30 VAC, 50-60 Hz, Class 2, 24 VAC nominal, 2.4 VA maximum not including
driven loads
Relay Contact Rating Maximum Inductive: 1 ampere with surges to 3 amperes, 24 VAC Class 2
Maximum Resistive: 1 ampere, 24 VDC (2000 VA maximum for all outputs)
Minimum: 10 mA for 24 VAC circuit; 10 mA for a 24 VDC circuit
Binary Inputs 20-30 VAC or 22-30 VDC (Negative on 24V [C] terminal). Switches at 2 VDC.
(LED 1, LED 2, CLK1)
Recommended Wire Size 18 gauge at 100 feet/22 gauge at 20 feet
Thermostat 28° to 124°F (0° to 48°C)
Measurement Range
Outdoor Air -50° to 124°F (-48° to 48°C)
Temperature Indication
Range
Control Range Heating: 38° to 88°F in 1° increments (5° to 30°C in 1° increments)
Cooling: 60° to 88°F in 1° increments 16° to 40°C in 1° increments)
Display Resolution 1°F (1°C)
Minimum Deadband 1°F (2°C) between heating and cooling
°C/°F Conversion 20°C = 68°F, each Celsius degree above or below 20°C is 2°F
N2 Communications Isolated bi-directional, RS-485, 9600 baud
Ambient Operating 32° to 131°F (0° to 55°C); 5% to 90% RH noncondensing
Conditions
Ambient Storage -30° to 131°F (-34° to 55°C)
Temperatures
Dimensions (H x W x D) 4-1/2 x 4 x 7/8 in. (114.3 x 101.6 x 22.2 mm)
Shipping Weight 0.37 lb (0.171 kg)
UL and cUL Listing UL 873 Multiple Class 2 Device, UL94HB Plastic Enclosure
CE Compliance CISPR 22, Residential Class B, CE Directive (89/336/EEC, EN50081/1,
EN50082/2) Industrial and Residential
FCC Compliance This equipment has been tested and found to comply with the limits for a Class
A digital device and verified to Class B pursuant to Part 15 of FCC Rules. These
limits are designed to provide reasonable protection against harmful interference
when this equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interference
to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to
correct the interference at his/her own expense.
This device complies with Class A Part 15 of the FCC rules. It was also verified to Class B. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired operation.
This Class A digital apparatus meets all of the requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numerique de
la classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada.

TEC-N2 Series Thermostat 3
Table 2: TEC-N2 Series Accessory Ordering Information
Item Product Code Number
Optional Accessories (includes mounting hardware)
Remote or Averaging Indoor Temperature Sensor with Communication Module NT-IDS
Outdoor Air Sensor with Outdoor Air Temperature Communication Module NT-ODT
Duct Mounted Supply Air Sensor with Outdoor Air Temperature
Communication Module
NT-DSCHG
Duct Mounted Return Air Sensor with Indoor Remote Temperature
Communication Module
NT-DUCT
Table 3: Alarm Indicators (AP32-N2 Heat Pump and GE22-N2 Multistage)
LED Position Function BI
Right ( )Indicates a fault. Controlled by external switch on LED 2, which displays a
wrench icon and reports Change-of-State (COS) to the Metasys system and
causes the Network Dial Modem (NDM) to dial out.
1
Center
(no symbol)
(HP32-N2 heat pump only.) Indicates when emergency (auxiliary) heat
(E ht) is activated. Internally controlled. No COS.
N/A
Left ( ) Indicates filter needs to be changed. Controlled by external switch on LED 1,
which displays the filter icon and reports a COS to the Metasys system and
causes the NDM to dial out.
3
Temperature
Alarm (no LED)
If the room temperature is more than 1°F (1°C) away from the setpoint after
45 minutes of operation, a COS will occur which causes the NDM to dial out.
Once the temperature reaches the setpoint, the alarm returns to normal.
2
Note: Either binary input (LED 1 or LED 2) can be used as a fan proving switch for other applications.
Table 4: Applications
Application Recommended Model
Fan Coil Unit GE22-N2
Heat Pump HP32-N2
Packaged Heating/Cooling GE22-N2
Unit Heaters GE22-N2
Packaged Rooftop GE22-N2

4TEC-N2 Series Thermostat
The tools needed to install the TEC-N2 series thermostat are:
• drill
• 3/16 in. drill bit
• 1/8 in. and 1/4 in. flat-blade screwdrivers
• hammer
• marking pencil
• wire stripper
Note: Two plastic anchors with screws and the cover lock are included
with the TEC-N2s.
Note: Mount the TEC-N2 series thermostat on an interior wall, approxi-
mately 1.5 m (5 ft) above the floor in a location of average tem-
perature (e.g., 72°F). Do not mount the thermostat on outside
walls or behind doors. Be sure to install the thermostat away from
direct sunlight or radiant heat, air discharge grilles, stairwells, or
outside doors. Keep the thermostat away from steam or water
pipes, warm air stacks, areas with no airflow, or sources of electri-
cal interference.
To mount:
1. Lift the thermostat cover and insert a small coin into the slot located
in the bottom center of the thermostat case.
2. Twist 1/4 turn (Figure 2).
3. Grasp the base from the bottom two corners, and separate from the
thermostat.
4. Swing the thermostat out from the bottom, and lift up and out from
the base.
Note: When replacing an existing thermostat, use wire tags to identify
terminal designations.
IInnssttaallllaattiioonn
Required
Installation Tools
MMoouunnttiinnggtthhee
TTEECC--NN22SSeerriieess
TThheerrmmoossttaatt
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Figure 2: Separating and Mounting the TEC-N2

TEC-N2 Series Thermostat 5
5. Place the rectangular opening in the base over the equipment control
wires.
6. Use the base as a template, and mark the location of two mounting
holes.
7. Drill two 5 mm (3/16 in.) holes at the marked locations.
8. Tap nylon anchors (included) flush to wall surface.
9. Place thermostat mounting holes over anchors, and screw the thermo-
stat into place using the included anchor screws (Figure 2).
Follow these steps to wire the TEC-N2s:
1. Connect the wires from the existing system to the thermostat termi-
nals. Refer to Figure 3, and Figure 5 for wiring diagrams.
2. Push any extra wire back into the wall. The wires must be flush to
the plastic base.
3. Plug the hole in the wall to eliminate air drafts on the sensor.
Select Dual Inline Package (DIP) switches to perform a variety of differ-
ent functions: fan runtime delay, keyboard disable, and multistage heating
or cooling.
Note: Before selecting a minimum on/off time for the TEC-N2 series,
verify the equipment can tolerate the following hourly maximum
cycle rates: 7.5 cycles per hour when using 4-minute on/off (pre-
ferred for energy savings) or 15 cycles per hour when using
2-minute on/off.
Wiring the TEC-N2
Series
Thermostats
Setting the DIP
Switches

6TEC-N2 Series Thermostat
HP32-N2 Heat Pump Wiring Configuration and DIP Switch Settings
Table 5: HP32-N2 Heat Pump DIP Switch Selections
DIP
Switch
Selection Description
1On Compressor/Auxiliary Interlocked: turns off the compressor when the auxiliary heat
(E Ht) is on. The compressor will remain off for 2 minutes after the auxiliary heat is
turned off to ensure that the heat pump coil has cooled.
Off Compressor/Auxiliary Normal: allows the compressor and auxiliary heat to be on
simultaneously.
2Off Not used. Switch should remain in the OFF position.
3On Allows 2-minute minimum on/off time for heating or cooling equipment.
Off Allows 4-minute minimum on/off time for heating or cooling equipment (preferred).
4On* Locks the keyboard, disabling buttons to prevent tampering. DAY/NIGHT mode button
can select 1-hour override.
Off Unlocks the keyboard.
5On Comfort: allows the auxiliary heat to be energized when the room temperature error is
greater than 1°F (0.5°C) for 1.5 hours.
Off Economy: minimizes the use of auxiliary heat. If the room temperature error is 1°F
(0.5°C) for 3 hours, auxiliary heat is energized.
6On Allows multistage heating or cooling.
Off Allows single-stage heating or cooling.
7On Liquid Crystal Display (LCD) filter icon ( ) turns on with LED 1 contact closure to
24 VAC.
Off No filter icon.
8On LCD wrench icon ( ) turns on with LED 2 contact closure to 24 VAC.
Off No wrench icon.
*Note: When DIP switch 4 is on, only the DAY/NIGHT mode button can be used to select 1-hour override to
occupied setpoints if in night mode. All other buttons are read-only. The N2 address can also be viewed.
Figure 3: HP32-N2 Heat Pump, Factory-Set DIP Switch Settings,
and Wiring Configuration
145678
ON
23
Compressor/Auxiliary
Normal
Not Used
Heat/Cool: 4 Minute
Minimum On/Off
Keyboard Unlocked
Compressor/Auxillary
Interlocked
Not Used
Heat/Cool: 2 Minute
Minimum On/Off
Keyboard Locked
Comfort
Multistage
LED1 icon (Filter)
LED2 icon
(Wrench/Fault)
Economy
Single-Stage
LED1 icon Off
LED2 icon Off
LED1 Y2 2nd Stage Compressor
HP32-N2
Auxiliary Heating
1st Stage Compressor
Fan
24VAC Power In
24VAC Common
Cool Reversing Valve
Heat Reversing Valve
W1
Y1
G
R
24V
24V(C)
O
B
LED2
CLK1
CLK2
RS2
RS1
RS+V
N2+
N2-
N2 REF

TEC-N2 Series Thermostat 7
Table 6: HP32-N2 Heat Pump Output Terminal Designations
Terminal Function
Y2 Energizes compressor 2 on call for second stage heating or cooling.
W1 Energizes auxiliary heat as third stage heating or emergency heat.
Y1 Energizes compressor 1 on call for first stage heating or cooling.
GEnergizes fan on call for heating or cooling or by pressing FAN button.
RProvides independent switching voltage.
24V Provides 24 VAC from equipment transformer.
24V(c) Provides 24 VAC (common) from equipment transformer.
LED 1, LED 2 LED 1 or LED 2 contact closure to 24 VAC from remote switch.
CLK1, CLK2 Connects remote clock/timer for alternate setpoints.
RS2, RS1, RS+V Connects outdoor air temperature or indoor remote sensors; refer to instructions included
with sensors.
OEnergizes reversing valve in the cooling mode.
BEnergizes reversing valve in the heating mode.
N2+, N2-, Ref N2 Bus
Figure 4: HP32-N2 Heat Pump Wiring Schematic
W1 Y1 Y2 G O B RS1
RS2
N2+ N2- REF
CLK1
CLK2
R24V
T1 T2
24V(c)
LED2
LED1
RS+V
First Stage
Compressor
Auxiliary
Heat
Fan
Reverse
Valve
Heating
Remote
Sensor
(if used)
Electronics
Remote
Clock/Timer
(if used)
Metasys
CPN, FAC,
NCM
Reverse
Valve
Cooling
Second
Stage
Compressor
Jumper
If the transformer (T2) is to power all of the loads, the
yellow pin jumper must be inserted connecting
R to 24V. The jumper is located on the electronics board
above the relays. If a separate 24V transformer (T1) is to
be used, it must be connected between R and 24V(c), and
the jumper should be removed between R and 24V.
Field Contact Switches
Thermostat
Equipment

8TEC-N2 Series Thermostat
GE22-N2 Multistage Wiring Configuration and DIP Switch Settings
Table 7: GE22-N2 Multistage DIP Switch Selections
DIP Switch Selection Description
1On Allows 2-minute minimum on/off time for heating or cooling equipment.
Off Allows 4-minute minimum on/off time for heating or cooling equipment
(preferred).
2On* Locks the keyboard, disabling buttons to prevent tampering. The DAY/NIGHT
mode button can select 1-hour override.
Off Unlocks the keyboard.
3Off Not used. Switch should remain in the OFF position.
4On Allows multistage heating or cooling.
Off Allows single-stage heating or cooling.
5LED 1 icon
On/Off
Optional selection: LCD filter icon ( ) comes on with LED 1 contact closure
to 24 VAC.
6LED 2 icon
On/Off
Optional selection: LCD wrench icon ( ) comes on with LED 2 contact
closure to 24 VAC.
*Note: When DIP switch 2 is on, only the DAY/NIGHT mode button can be used to select 1-hour override to
occupied setpoints if in night mode. All other buttons are read-only. The N2 address can also be viewed.
N
Figure 5: GE22-N2 Multistage Factory-Set DIP Switch Setting and
Wiring Configuration
1456
ON
23
Heat/Cool: 4 Minute
Minimum On/Off
Heat/Cool: 2 Minute
Minimum On/Off
Not Used
Multistage
Not Used
Keyboard Unlocked Keyboard Locked
Single-Stage
LED 1 icon (Filter)LED 1 icon Off
LED 2 icon
(Wrench/Fault)
LED 2 icon Off
LED1 Y2
GE22-N2
1st Stage Heating
1st Stage Cooling
Fan
24VAC Power In
Common
2nd Stage Heating
W1
Y1
G
R
24V
24V(c)
W2
LED2
CLK1
CLK2
RS1
RS2
RS+V
N2+
N2-
N2 REF
2nd Stage Cooling

TEC-N2 Series Thermostat 9
To connect the N2 Bus:
1. Observe the polarity when connecting the N2 Bus wires to the
TEC-N2.
Note: Each TEC-N2 has self-terminating End-of-Line (EOL) resistors.
However, one EOL is needed at the BAS (two are preferred at
opposite ends).
2. Continue this process for each TEC-N2 using the daisy chain wiring
method (Figure 7).
Connecting the
N2 Bus
Table 8: GE22-N2 Multistage Output Terminal Designations
Terminal Function
W2 Energizes on call for second stage heat.
Y2 Energizes on call for second stage cooling.
W1 Energizes on call for first stage heat.
Y1 Energizes on call for first stage cooling.
GEnergizes fan on call for heating or cooling or by pressing the FAN button.
RIndependent switching voltage.
24V 24 VAC from equipment transformer.
24V(c) 24 VAC (common) from equipment transformer.
LED 1, LED 2 Input connection that energizes LED 1 or LED 2 from remote status device to 24 VAC.
CLK1, CLK2 Connections for remote clock/timer for alternate setpoints.
RS2, RS1, RS+V Connection for outdoor temperature sensor and/or indoor remote sensor option; refer to
instructions included with sensors.
N2+, N2-, REF Metasys N2 Bus connections
Figure 6: GE22-N2 Multistage Wiring Schematic
W1 Y1 W2 Y2 G RS1
RS2
N2+ N2- REF
CLK1
CLK2
R24V
T1 T2
24V(c)
LED2
LED1
RS+V
Fan
Remote
Sensor
(if used)
Electronics
Remote
Clock/Timer
(if used)
Metasys
CPN, FAC,
NCM
First
Stage
Compressor
Second
Stage
Compressor
Jumper
If the transformer (T2) is to power all of the loads, the
yellow pin jumper must be inserted connecting
R to 24V. The jumper is located on the electronics board
above the relays. If a separate 24V transformer (T1) is to
be used, it must be connected between R and 24V(c), and
the jumper should not be connected between R and 24V.
Field Contact Switches
Thermostat
Equipment
First Stage
Heat
Second
Stage
Heat

10 TEC-N2 Series Thermostat
Connecting to
N30 Series
Connecting to
the Companion/
Facilitator
System
Figure 7: Connecting the TEC-N2 to an NCM
TEC-N2
N2 REF
To
Next
N2
Device
N2-
N2+
N2+
81
72
36 SFT
HRD
NCM200 Series
(TB1 or Communicator
Terminal Board)
NCM300 Series
Port 1 - N2 Bus
GRD
GRD
REF
or SFT
GRD
N2+
N2-
N2-
N2 REF
N2+
N2-
N2
REF
{
TEC-N2
N2 REF
To
Next
N2
Device
N2-
N2+
N2+
N2+
24 VAC
N30
N2-
REF
S
DS2
DS1
DS3
N2-
N2 REF
N2+
N2-
N2
REF
{
Figure 8: Connecting the TEC-N2 to the N30 Series
Figure 9: Connecting the TEC-N2 to the
Companion/Facilitator System
TEC-N2
N2+
24VAC N2+
N2-
REF
N2 Bus
Connector
24VAC
GND
N2-
Companion/Facilitator
Transformer
N2 REF
N2+
N2-
REF

TEC-N2 Series Thermostat 11
To set the N2 Address:
1. Push the FAN and MODE buttons simultaneously for ten seconds
after power up. The lower section of the display shows the current
N2 address.
2. Push the ∨∨or ∧∧buttons to change the address (1-253). Map the TEC-
N2 into CPN/FAC/NCM/N30 series as a vendor device (VND).
3. Push any button to exit this mode, or wait five seconds and the TEC
automatically returns to normal operation.
Note: You can lock the keyboard using the DIP switch to prevent
address change, however this disables access to other functions
except temporary occupancy.
When adding the TEC to the Metasys system (Person/Machine Interface
[PMI] and Companion system), you must define the TEC-N2 as a VND.
For the NCM, do not direct map any points. Run control of these points
through the Control System (CS) object only.
Note: For the TEC-N2, do not use the Adjust command with the
Companion/Facilitator (CPN/FAC) system, since it is not support-
ed. The TEC-N2 responds with an offline message but continues
to operate normally.
Connecting to
NDM
Setting the N2
Address
N2 Device
Mapping
TEC-N2
N2+
N2+
N2-
REF
N2+
N2-
REF
N2 TRANSMIT
1
N2 ADDRESS
OFF
2
4
8
16
32
64
128
N2 RECEIVE POWER
NU-NDM101-0
1995
4100/D01/03
JOHNSON CONTROLS INC.
ALL RIGHTS RESERVED
REV - M9426
9-12 VAC/DC
0.5A
_+
N2 END
OF LINE
NDM
N2-
REF
Figure 10: Connecting the TEC-N2 to the NDM

12 TEC-N2 Series Thermostat
Table 9: N2 Bus Objects
Point Name TEC-N2 N30 BAS Override Range HP32 GE22
Point (CPN/ Model -N2 -N2
Type/ FAC) Point
Addr Object Type
Type
Room Temp ADI-1 N2 AI (AI)dCSAD ADI1 0° to 48°C ♦♦
(28° to 124°F)
Outdoor TempaADI-2 N2 AI (AI)dCSAD ADI2 -48° to 48°C ♦♦
(-54° to 124°F)
Heating SPaADI-3 N2 AO (AO) CSAD ADI3 1° to 47°C (29° to 99°F) ♦♦
Cooling SPaADI-4 N2 AO (AO) CSAD ADI4 1° to 47°C (29° to 99°F) ♦♦
Setback Heating SPaADI-5 N2 AO (AO) CSAD ADI5 1° to 47°C (29° to 99°F) ♦♦
Setback Cooling SPaADI-6 N2 AO (AO) CSAD ADI6 1° to 47°C (29° to 99°F) ♦♦
Minimum Heat SPaADI-7 N2 AO (AO) CSAD ADI7 1° to 47°C (29° to 99°F) ♦♦
Maximum Heat SPaADI-8 N2 AO (AO) CSAD ADI8 1° to 47°C (29° to 99°F) ♦♦
Minimum Cool SPaADI-9 N2 AO (AO) CSAD ADI9 1° to 47°C (29° to 99°F) ♦♦
Maximum Cool SPaADI-10 N2 AO (AO) CSAD ADI10 1° to 47°C (29° to 99°F) ♦♦
FanaBD-1 N2 BO (BO) CSBD BD1 0 = Off/Auto, ♦♦
1 = On/MAN
ModeaBD-2 N2 MSOef (AO) CSMS BD2 0 = Off 1= Cool, Mode Mode
2 = Heat, 3= Auto, 0-4 0-3
4 = E Ht (Aux Heat)f
OccupancyaBD-3 N2 BO (BO) CSBD BD3 0 = Unoccupied, ♦♦
1 = Occupied
W1 State BD-4 N2 BI (BI) CSBD BD4 0 = Off, 1 = On E Heat Heat 1
W2 State or Heat BD-5 N2 BI (BI) CSBD BD5 0 = Off, 1 = On Heat Heat 2
Pump O/B Pump
O/B
Y1 State BD-6 N2 BI (BI) CSBD BD6 0 = Off, 1 = On Comp 1 Cool 1
Y2 State BD-7 N2 BI (BI) CSBD BD7 0 = Off, 1 = On Comp 2 Cool 2
G State – Fan BD-8 N2 BI (BI) CSBD BD8 0 = Off, 1 = On ♦♦
Temp Unitsac BD-9 N2 BO (BO) CSBD BD9 0 = °C, 1 = °F ♦♦
Wrench BIbBI-1 N2 BI (BI) CSBI BI1 0 = Normal, 1 = Alarm ♦♦
Temp AlarmbBI-2 N2 BI (BI) CSBI BI2 0 = Normal, 1 = Alarm ♦♦
FilterbBI-3 N2 BI (BI) CSBI BI3 0 = Normal, 1 = Alarm ♦♦
Notes: See following page.

TEC-N2 Series Thermostat 13
To install the thermostat cover lock:
1. Place the ends of the lock piece (included with unit) under the lock
pins extending from the bottom of the mounted base. The tab in the
middle of the lock piece extends downward from the mounted base
(Figure 11).
2. Press the lock piece up and into the base while gently prying open the
thermostat to release the lock. Use caution to avoid cracking the ther-
mostat base or cover.
To reattach the thermostat:
1. Position the thermostat inside the cover, and attach on the hinged tabs
located at the top of the base.
2. Swing the thermostat and cover down.
3. Press on the bottom center edge until plastic lock snaps in place
(Figure 11).
a Commandable.
b Can be a COS alarm to the BAS or NDM to initiate a dial out.
c On the Metasys NCM system, map BD9 “Temp Units Mode” as a Binary Output (BO) object in a Control System (CS)
object with Autorestore and Local Control set.
d AIs are commandable in the Companion/Facilitator system.
e The Multiple Command Output (MCO) object is used to schedule multiple Multi-State Objects (MSOs).
f When defining the N2 MSO object, select TEC Mode from the States Text Menu. Type 5 in the Number of States field if
you’re using the HP32-N2 Heat Pump model, or type 4 for any other model. Mode 4, or Emergency (Auxiliary) Heat (dis-
played as E ht), is only available on the HP32-N2 Heat Pump model.
The Controller Point Type is the fixed point definition inside the controller. The CPN/FAC point is the software point definition
inside the Companion software. The BAS Model Point type is the definition inside the model file. An NCM CS object must be
used to retrieve the data.
Control of the Analog Data (AD) objects is “the last command received is the one that controls the thermostat.” For example,
if the Metasys system sends a night override, but the occupant selects day mode, the TEC goes into day mode.
Installing the
Thermostat
Cover Lock
Reattaching the
Thermostat
Figure 11: Installing the Thermostat Cover Lock
Plastic
Lock Pins
Snap
plastic lock
piece into place.
Thermostat
Base
Hinged
Tabs

14 TEC-N2 Series Thermostat
TEC-N2
Features
Table 10: TEC-N2 Features
Feature Description
Control
Algorithm
Over time, the TEC-N2 learns how long it takes the system to meet the load. If the system
can change the room temperature quickly, the TEC-N2 allows the thermostat to drift further
from setpoint before starting the equipment. If the system takes a longer period of time to
change the room temperature, the TEC-N2 does not allow the temperature to drift as far
from setpoint. The TEC-N2 also takes into account the minimum on/off times.
The 2-minute on/off time allows the equipment to cycle more frequently at smaller
differentials than the 4-minute on/off time.
For multistage applications, the TEC-N2 does not bring on the next stage of cooling or
heating if it knows that the system can change the temperature by 6° in one hour or 1° in
10 minutes. To verify thermostat operation, force the next stage on by changing the setpoint
by more than 2° (see the Verifying Proper Thermostat Operation section).
Clock Terminals
CLK1 - CLK2
The TEC-N2 thermostat accepts a contact closure for a clock/timer to allow the use of
alternate or setback heating and cooling setpoints in place of a BAS.
When the contact is open, the day icon ( ) appears, and the thermostat adjusts to the day
setpoint. When the contact is closed, the night icon ( ) appears, and the thermostat adjusts
to the night setpoint. Pressing the DAY/NIGHT button when the thermostat is in night mode
will switch the thermostat to day mode, even if a clock/timer is used. The clock (CLK)
contacts on the thermostat are in parallel with the thermostat DAY/NIGHT button and will
change to the next command given by the clock. Therefore, if the thermostat is in night mode
(contacts closed) and the thermostat is switched to the day mode from the front panel, then
at the next clock control time, the thermostat will stay in the day mode. When the contacts
close again the following night, the thermostat will switch to night setpoints.
Temporary
Occupied with
Keyboard Lock
When in night mode, select this feature by pushing DAY/NIGHT button to put TEC-N2 in
1-hour timed override to occupied setpoints.
Remote Sensor When using a remote sensor (NT-IDS), the TEC-N2 internal sensor is disabled. If two to
six remote sensors are connected, then they can be used for temperature averaging.
Outdoor/Duct
Temperature
Sensor
There are two separate analog inputs on the TEC-N2, which are the room sensor and a
duct or outdoor air sensor on a slave bus. The duct temperature displays when the
OUTDOOR button is pushed. On the GE22-N2, the outdoor/duct sensor simply is a
monitor of temperature. On the HP32-N2, the outdoor temperature provides a low
temperature lockout (see Displaying Outdoor/Duct Air Temperature under the
Commissioning section later in this document). Both of these can be displayed on the LCD
at the Metasys system. The outdoor temperature can be a global N2 override from a
single sensor.
Power Failures or
N2 Failures
In the event of a power failure, or ten minutes after an N2 communication loss, the
N2 Address Push FAN and MODE buttons simultaneously and hold for ten seconds to view address.
thermostat retains the last setpoints. When power is restored, it remains in normal operation
and does not require resetting. If power was lost when the thermostat was in night mode, it
returns to day mode.
N2 Dial Module
(NDM)
There are three binary input points to cause a COS that triggers the remote NDM to dial out.
Binary inputs 1 and 3 (wrench and filter) are general purpose inputs powered by 24 VAC or
22-30 VDC. Binary input 2 is the temperature alarm binary data point that will cause a COS
if the zone temperature is moving away from the setpoint after 45 minutes. The COSs

TEC-N2 Series Thermostat 15
To verify proper thermostat operation:
1. Press the MODE button to select the heating or cooling mode.
2. Press the ∨∨or ∧∧buttons to raise the setpoint above or below the cur-
rent ambient temperature. The thermostat calls for either heating or
cooling.
To energize each stage of heating quickly, set the heating setpoint 2°F
above the present room temperature. Wait for the heat icon displayed on
the LCD. For example, if the room temperature is 70°F, set the heating
setpoint to 72°F. The first stage of heating should energize. Once the heat
icon is off, readjust the setpoint 2°F above the last setpoint (for example,
74°F). When the heat icon is off, adjust the setpoint 2°F higher (76°F), to
energize the auxiliary heat (HP32-N2 model only).
Press the MODE button to select from the modes listed in Table 11.
CCoommmmiissssiioonniinngg
Verifying Proper
Thermostat
Operation
Selecting an
Operation Mode
Table 11: TEC-N2 Series Thermostat Modes
Mode Description
COOL When the snowflake icon ( ) and the word COOL are displayed, the
thermostat is in the cooling mode. When the thermostat is calling for
cooling, the snowflake blinks.
HEAT When the flame icon ( ) and the word HEAT are displayed, the
thermostat is in the heating mode. When the thermostat is calling for
heating, the flame blinks.
E Ht When the flame icon ( ) and E Ht (emergency heat) are displayed, the
thermostat operates using the emergency heat with the compressor locked
out (HP32-N2 Heat Pump only).
Auto
When the snowflake () and the flame () icons and the word Auto are
displayed, the thermostat automatically changes over between heating and
cooling.
OFF When OFF is displayed, the equipment does not operate.
Note: The thermostat never allows less than 2°F (1°C) difference between cooling and
heating setpoints. Use caution when using the OFF mode in extremely cold
weather.

16 TEC-N2 Series Thermostat
Press the ∨∨and ∧∧buttons simultaneously to alternate between Celsius and
Fahrenheit display. This will not affect the BAS display. For example, hotel
room temperature can be displayed in °F on the Companion system, but a
hotel guest can switch the local display to °C. If power loss occurs, the
TEC-N2 reverts to the last network command (in this example, °F).
For continuous operation, press the FAN button and the fan icon (k)
appears. If the FAN button has not been selected, the fan operates auto-
matically on a call for heat or cool (no fan symbol appears).
When an outdoor or duct temperature sensor (order separately) is con-
nected to the TEC-N2 thermostat or if the outdoor air temperature is
available from the N2 network, press the OUTDOOR button. The tem-
perature will be displayed along with corresponding icons (t). The
Metasys BAS can display the outdoor duct air temperature when mapped
back. The HP32-N2 uses the outdoor air sensor or N2 value for low tem-
perature compressor lockout and high temperature heating lockout. When
there is no N2 command and the sensor option is not connected, the ther-
mostat displays —- when the button is pushed.
To use outdoor air lockout, you must set the high and low balance points.
Any outside temperature above the high balance point locks out the aux-
iliary heat, and any outside temperature below the high balance point
allows the auxiliary heat to run when called for by the thermostat.
Similarly, any outside temperature below the low balance point will lock
out the compressor, and any temperature above the low balance point
allows the compressor to run when called for by the thermostat. Both bal-
ance points can be set from -48° to 50°C (-55° to 125°F).
Note: To set the high and low balance points, an outdoor sensor must be
attached to the unit.
To set the high and low balance points for outdoor air lockout:
1. Press and hold the OUTDOOR button, then press the MODE
button. HibP appears in the display, meaning high balance point,
along with the current balance setpoint.
2. Press the ∨∨and ∧∧buttons to set the high balance point temperature.
3. Press the OUTDOOR button. LobP appears in the display, meaning
low balance point, along with the current balance setpoint.
4. Press the ∨∨and ∧∧buttons to set the low balance point temperature.
5. Press the MODE button to resume operation.
Selecting a
Temperature
Scale
Selecting Fan
Operation
Displaying
Outdoor/Duct
Air
Temperature
Setting the
Electronic
Outdoor High
and Low
Balance
Points

TEC-N2 Series Thermostat 17
When the TEC-N2 series thermostat is first installed, or after a power
loss, the display shows the day icon (e) and the temperature. Once the
BAS overrides the day or night mode, the corresponding symbol will be
displayed.
To select day or night mode:
• Use BAS to schedule the day or night modes through the occupancy
binary data point, or
• Press the DAY/NIGHT button (ef), or
• Install a time clock using the CLK1 and CLK2 terminals, to activate
the thermostat’s night mode.
The internal and remote sensors can be calibrated to eliminate wire
resistance errors or to match another reference.
To calibrate the thermostat:
1. Press and hold the FAN button for 10 seconds.
2. Adjust the temperature with the ∨∨and ∧∧buttons. The temperature is
shown on the lower display to the hundredths place. For example,
72°F on the large display is shown as 72 13.
3. Press the FAN button again to accept the reading.
To set the thermostat setpoints:
1. Press the DAY/NIGHT button until the day icon (e) appears.
2. Set the mode to cool (j).
3. Select the desired temperature for equipment to maintain during the
day while in the cooling mode, using the ∨∨or ∧∧buttons. The cooling
setpoint range is 16° to 40°C (60° to 88°F).
4. Set the mode to heat (i).
5. Select the desired temperature for equipment to maintain during the
day while in the heating mode using the ∨∨or ∧∧buttons. The heating
setpoint range is 5° to 30°C (38° to 88°F).
6. Press the DAY/NIGHT button until the night icon (f) appears.
7. Repeat steps 2 through 5 for the night setpoints.
8. Verify N2 address is not inadvertently changed.
The keyboard lock is selected by setting the DIP switch. The locked icon
(z) appears on the display when any button is pressed. Use keyboard
lock to put the TEC-N2 into occupied setpoints for one hour. All the
TEC-N2 values may be overridden from the Operator Workstation
(OWS).
Selecting Day or
Night Mode (ef)
Sensor
Calibration
Setting the
Thermostat
Setpoints
Keyboard Locked

18 TEC-N2 Series Thermostat
See Table 12 if the TEC-N2 thermostat does not function properly
during N2 Bus Configuration.
TTrroouubblleesshhoooottiinngg
N2 Bus
Configuration
Troubleshooting
Table 12: N2 Bus Configuration Troubleshooting
Error/Trouble
Condition
Possible Causes Solution
TEC-N2 cycles online
and offline.
Two or more controllers have the
same address.
Change each duplicate address to a unique
number.
There are Y or T taps or the
repeater lost power or is wired
incorrectly.
Refer to the Johnson Controls N2
Communications BusTechnical Bulletin
(LIT-636018).
Two or more controllers have the
same address.
Change each duplicate address to a unique
number.
TEC-N2 does not come
online.
N2 Bus contains too many devices. The maximum of N2 devices allowed on the
N2 Bus is as follows: 100 devices per NCM,
32 devices per N30, 32 devices per N31,
150 devices per the Companion/Facilitator
system.
TEC-N2 does not have power. Apply power to the TEC-N2.
N2 cable runs are broken. Locate and correct the wiring.
Device type is incorrect. TEC1100 address must be VND device type.
EOL jumpers on MM-CVT101 or NCM
are not installed.
Install EOL jumpers properly.Entire N2 Bus is offline.
MM-CVT101 is not plugged into PC or
120 VAC source.
Plug MM-CVT101 into PC or plug it into a
120 VAC source.
Wiring near the BAS is broken. Repair the wiring.
No point mapping entered. Define the BAS database.

TEC-N2 Series Thermostat 19
Zone temperature control problems, usually reported as occupant hot/cold
complaints, can have causes ranging from the building or mechanical sys-
tem to the control components. Table 13 helps locate the cause of zone
temperature control problems with TEC-N2 series thermostats.
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HHoott//CCoolldd
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TTrroouubblleesshhoooottiinngg
Table 13: TEC-N2 Series Thermostat Troubleshooting
Symptom Possible Cause Corrective Action
No display/faint
display.
Supply voltage incorrect. Use a voltmeter to check the voltage between the 24V and
24V(c) terminals. Voltage should be between 20-30 VAC. If
voltage is less than 20 VAC, disconnect the thermostat and
check the voltage between 24V and the other system
wires; see possible causes below. If voltage is greater than
30 VAC, troubleshoot the power source and replace the
thermostat.
System transformer weak
or overloaded.
Check and/or replace with a suitable 24V transformer.
Thermostat damaged
because system voltage
was greater than 30 VAC.
Replace with new thermostat, and ensure new thermostat
is isolated from the system using suitable relays and a
transformer of the proper rating.
Keyboard
inoperative.
Keyboard is locked. Switch the keyboard DIP switch to the unlocked position.
Thermostat does
not call for heat.
Short cycle delay still in
progress.
Wait 2 to 4 minutes for the equipment short cycle
protection to complete.
Thermostat setpoint is
satisfied.
Press MODE button until thermostat is in heat mode. Raise
the heating setpoint using the Ÿbutton.
Thermostat does
not call for cooling.
Short cycle delay still in
progress.
Wait 2 to 4 minutes for the equipment short cycle
protection to complete.
Thermostat setpoint is
satisfied.
Lower the cooling setpoint using the ⁄button.
Fan does not turn
on with the system.
Fan failure. Place a wire between terminals R and G. Fan should turn
on. If it does not, troubleshoot the fan system. If fan contact
does not energize, replace the thermostat.
Plenum temperature switch
failure.
In heat mode with a separate plenum switch, the fan will
not turn on until the plenum is up to its preset temperature.
Replace the plenum switch.
AC is flashing in
the LCD.
20-30 VAC absent from
R and C terminals.
Using a voltmeter, measure voltage between the 24V and
24V(c) terminals. If the reading is less than 20 VAC, check
system transformer. If the voltage is between 20 and
30 VAC, replace the thermostat.
LCD shows missing
or extra segments.
LCD failure. Replace the unit.
-55 appears when
OUTDOOR button is
pushed.
The sensor wire is open
inside the outdoor/duct
sensor module.
Repair or replace the sensor element.
-- -- -- appears. Miswired outdoor air sensor
or N2 override missing.
Add the sensor. Check the N2 command.

352-00150-001 Rev A
NetworkThermostats.com