Zonex GEN II -VVT User guide

58
GEN II-VVT
VOT E BASED AUTO CHANG E OVE R VVT
COMMERCIAL ZONING - SIMPLIFIED
GEN II
System Controller
AMODULATING S Y S T E M
Installation and Applications Manual

QUICK START AND COMMISSIONING
GEN II
QUICK START AND COMMISSIONING
Follow these Quick steps for a successful job
If you need additional information, please read the GEN II Manual
1. Install GEN II controller inside the conditioned space, in an easily accessible location for your customer.
2. Install an independent 24 volt 100 VA transformer, and connect to the TR1 and TR2 terminals on the GEN II
controller. Do not ground out the transformer.
3. Install the LAT sensor in the supply air, ahead of any bypass takeoffs. Wire sensor to the S S terminals on the
GEN II controller.
4. Install Dampers and Bypass Dampers.
5. Install all thermostat sub-bases.
6. Wire TR1 and TR2 terminals from the GEN II controller to the first thermostat sub-base TR1 and TR2 - only
(18 ga thermostat wire).
7. Wire A & B terminals from GEN II controller using Zonex TWPR or STPR Plenum rated twisted pair wire to the
first thermostat sub-base A & B - only.
8. Damper wiring - connect RO, RC, MC wires from each thermostat to its damper actuator using 18 ga thermostat
wire.
9. Attach the first EzTouch thermostat to it’s sub-base.
10. Address the thermostat as #1 and select damper type operation - see page 11-12 for EzTouch installation,
addressing and operation.
11. Turn on GEN II controller switch “E”. Power light should light up and look at the display “G” on the GEN II
controller, and the #01 should appear on the display. This indicates you are communicating with the first
thermostat.
12. If you don’t see the #01 and 00 is displayed, check the address. If the address on the stat is #01, then check
wires for TR1 & TR2 polarity and A & B for correct connections.
13. If #01 is displayed on the GEN II controller, then daisy chain wires from thermostat #1 to the next thermostat
and address it #2; then repeat the ON-OFF switch operation and confirm the #02 shows up on the display
indicating the system is now communicating with 2 thermostats.
14. Continue adding EzTouch thermostats; and confirm communication by repeating the ON-OFF switch operation
until all thermostats are wired and the total number of thermostats on the job show up on the display on the
GEN II controller.
15. Go to any EzTouch and make a Cool Call. Look at the GEN II controller and confirm Y1 (yellow LED) and G
(green LED) lights are on.
16. Turn OFF the Cool Call to be sure Y1 and G turn OFF at the GEN II controller.
17. Repeat with a Heat Call for W1 (red LED).
18. Wire GEN II controller to the A/C unit.
19. Set thermostat to call for cooling, and check register to be sure each damper opens and closes as you make
and satisfy the call.
For Advanced Feature Configuration or additional operating information, review the attached GEN II manual.

QUICK START AND COMMISSIONING
GEN II
QUICK START AND COMMISSIONING
The GEN II is equipped with a Digital Display (G) that constantly displays Leaving Air Tem-
perature from the unit. At startup, this display also reports the number of thermostats communicat-
ing with the GEN II controller. The display and 3 buttons (H)beneath the display provide the installing
contractor the ability to tailor the system to your specific application.
The GEN II controller is shipped from the factory configured for basic Gas/Electric operation.
However, the following should be checked as part of the initial installation setup procedures:
1. EH jumper (F) is installed by the factory on one pin for normal gas heat operation where the fan
is controlled by the HVAC system fan control. When a fan output is required from the GEN II
controller on a call for heat, place the EH jumper over both pins for several seconds and then
remove. Place the jumper tab on one pin.
2. O/B andHP jumpers (F) should both be on one pin or removed for GE operation.
3. PRIORITY (PRI) jumper (F) should be on one pin.
Note: If the Priority opposing zone strategy is to be used, this jumper position will be changed
after the initial system start-up is completed.
See Advanced Feature Configuration on page 21.
4. Set the Power Switch (E) to ON.
5. Set the NIGHT DAY switch (J) to the DAY position.
6. Set the fan jumper (I) to AUTO for intermittent operation or ON for constant ON operation in the
Occupied mode.
7. Place the LOCK –UNLOCK switch (K) in the UNLOCK position.
8. Place the TIME/TEMP jumper (I) on the middle and upper pins to control Y2 and W2 staging on
run time and supply air temperature.
GEN II-VVT
7 2
SET
DN
UP
S S B
ON
AUTO
TIME/TMP
TIME
EH
O/BHPPRI
NIGHT DAY UNLOCK LOCK
OFF ON
G
W2
W1
Y2
Y1
TC TC
TR1TR2
TR1 TR2 Y1Y2W1W2G R
HP
GE
O/B RY1Y2G W2
A
A
B
C
D
E
F
G
H
I
JK
L
M
OUT IN

System Overview Diagram
1
SYSTEM OVERVIEW
Controller ID Diagram
Gas/Electric Installation
Gas/Electric Controller Configuration
Gas/Electric Advanced Configuration
Heat and Cool Cut-out Temperatures
Electric Heat Fan
2nd Stage Operation
2
GAS/ELECTRIC OPERATION
Controller ID Diagram
Heat Pump Installation
Basic Configuration
Heat Pump Advanced Configuration
Heat and Cool Cut-out Temperatures
2nd Stage Operation
3
HEAT PUMP OPERATION
EzTouch Installation
Wiring Diagram
EzTouch Configuration
EzTouch Configuration Menu
EzTouch Advanced Menu
Supplemental Heat Applications
4
ZONE THERMOSTAT - EZTOUCH
Round and Rectangular Damper Selection and Sizing
Slaving Zone Dampers
12
ZONE DAMPERS
Bypass Dampers
Slaving Bypass Dampers
Bypass Installation
IPC – Static Pressure Controller
1
2
3
3
4
5
5
5
5
6
7
8
9
9
9
10
10
11-12
13-14
15-17
18-19
38-39
40
41
42
43
44-45
13
BYPASS DAMPERS
1
3
6
10
38
41
TABLE OF CONTENTS
Occupied / Unoccupied Fan
Opposing Call Changeover
Priority Demand
Thermostat Security - LOCK
Air Balance
Default Thermostat Set Points
10
ADVANCED CONFIGURATION
34
34
34
35
35
36
9
TROUBLESHOOTING
34
General Sequence of Operation
8
SYSTEM START UP AND TESTING
5
GEN II WIRING SCHEMATIC 20
32
33
6
SATouch Universal Thermostat
Installation Instructions
SATouch Configuration and Operation
SATouch Configuration Menu
SATouch Advanced Menu
SATOUCH THERMOSTAT INSTALLATION AND CONFIGURATION
21
22
23-24
25-27
28-30
21
7
REMOTE SENSOR AND AVERAGING SENSOR INSTALLATION
31
11
TIME CLOCK INSTALLTION (GCLK) 37

1
SYSTEM OVERVIEW
SYSTEM OVERVIEW
The GEN II is a commercial modulating zone control system controlling 2-17
nes per unit. The GEN II controller is designed for Auto Changeover, multi-stage Heat Pump
(2C/3H) and Gas Electric (2C/2H) applications.
The GEN II system uses the Zonex EzTouch, which modulates and controls the “ST” series, 3-wire,
24-volt, power open / power close round and rectangular dampers.
Sophisticated, integrated software allows for a wide range of system control and changeover
strategies, allowing the contractor to tailor the GEN II system to your specific application.
Additional features include LED status indication of all system functions, digital LAT display, fully
adjustable capacity control with on-board limit settings, and optional staging strategies. Night
setback operation is standard, with selectable 2-hour override at each stat, along with a unique
feature to remotely lock thermostats in the system.
The system provides the installing contractor with a simple startup diagnostic to minimize wiring
errors and speed installation.
independent zo-
GEN II is recognized as the Industry’s easiest commercial zone control system to install and wire. The
GEN II system operates over an unshielded two-wire data link, along with two 24v power wires all
daisy chained from stat to stat with no home run wiring required. Three wires from the stat to actuator
control a modulating damper in each zone.
The GEN II system does not require a computer to set up or operate.
PULL 24V POWER AND UNSHIELDED TWISTED PAIR
DAISY CHAINED FROM EZTOUCH TO EZTOUCH
UP TO 17 DAMPERS
24VAC / 40VA
TRANSFORMER
24VAC / 100VA
TRANSFORMER
BYPASS DAMPER
STATIC
PRESSURE
SENSOR
1
ZONE
DAMPER
2
ZONE
DAMPER
3
ZONE
DAMPER
4
ZONE
DAMPER
LEAVING
AIR SENSOR
System Features
- Universal for G/E or H/P Units
- Fully Modulating Zone Dampers
- Up to 17 Zones Per Unit
- Color Touch Screen Thermostats
- Auto- Changeover Operation
- Selectable Priority
- On-board Capacity Control
- Night Setback Included
- 2-Hour Override
- Lock Stats Remotely
- Start Up Diagnostic
- 2 Data Wires
- 2 Power Wires
- 3 Wire Stat to Damper
- No Home Run Wiring
- No Computer Required For Setup
GEN II VVT
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   
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    

2
GENERAL SEQUENCE OF OPERATION
GEN II offers the following additional control features:
1. Set Cooling and Heating capacity cut-out set points
2. Adjustable timing to initiate 2nd stage operation
3. Adjustable opposing call changeover timing
4. Priority demand votes on a stat-by-stat basis
5. Provide default occupied and unoccupied set points on every stat
6. Automatically open all dampers for air balancing
GEN II components:
•GEN II controller (includes integrated capacity control)
• Zone thermostats
• Modulating power open / power close 24vac supply dampers
• Modulating power open / power close 24vac bypass damper with static pressure control
• Communication cable (Belden 8740) twisted pair or Zonex supplied equal
• Time Clock
• 24vac 100va transformers: to control system and all supply dampers
• 24vac 40va transformers: for bypass damper and static pressure control
GENERAL SEQUENCE OF OPERATION
When the GEN II controller is powered up, the total number of addressed thermostats (EzTouchs) are
determined and verified on the display. This confirms the controller is communicating with all thermostats
in the system. If there are no active heat or cool calls detected, the supply dampers will modulate to 40%
open for ventilation mode. The system blower operation can be configured for constant ON or intermittent
Auto. The controllers are shipped from the factory for Auto fan.
The GEN II systems can be field configured for adjustable time based opposing call changeover, vote
based majority changeover, or priority vote changeover by thermostat assignment. The GEN II controller
is shipped from the factory for 10-minute opposing call changeover. The GEN II controller “polls” the
thermostats once per minute to determine the thermostat demand status for heat and cool. The heat and
cool changeover functions will operate by the type of changeover selected on the controller. When the
GEN II controller changes modes, a 5-minute purge cycle is initiated before the changeover is completed.
On active heat or cool calls, the non-calling zones will modulate to the closed position. When the last
calling zone is satisfied in either heat or cool mode, the GEN II controller terminates the HVAC outputs
after the next “poll” and the blower output will be de-energized (unless controller is configured for constant
fan) for a 5-minute purge cycle. During the purge cycle no heat or cool calls are recognized.
When the system is in the heating mode and calls for cooling are received, an opposing call timer strategy
operates. This timer is adjustable from 10 - 30 minutes. The factory default is 10 minutes. At the end of
the selected time period, if the opposing call is 3° away from set point, heating is turned off. After a 5-min-
ute purge mode, Cooling is turned on until the cool call is satisfied. If necessary, GEN II will return to the
heating mode, If all calls have been satisfied, dampers will modulate to the 40% open position for ventila-
tion. If the opposing zone strategy is not desired, this feature may be disabled.
This mode may be enhanced by adding Priority votes to each thermostat in the system, thereby weighting
certain zones more than others. This Priority mode allows you to select 0, 1, or 2 additional votes for a
thermostat that has unusual loads, like a conference room.
Minimum / Maximum damper positions can be set to provide ventilation. Each thermostat has Auxiliary
contacts that support and control a supplemental heat source i.e., baseboard, reheat, or hot water coil, to
meet the temperature requirements of any commercial application.

3
General Installation Instructions
GEN II Controller
1. Install the GEN II controller on an interior wall where the ambient temperature is between 32°-
120°F (0°- 48°C) non-condensing. This controller is to be installed in an accessible interior
area; not in attics or above ceilings.
2. The controller is to be powered by a dedicated 24vac 100va transformer. The transformer secondary
is wired to TR1 TR2 on the controller (B). DO NOT ground out the transformer
The secondary voltage to the controller must be 24 to 28vac. DO NOT ground out the transformer.
LEGEND
A
BTR1 & TR2 24-Volt Transformer
CTC – TC Time Clock Terminals
DUnit Terminals
EOn / Off Switch
FPriority Jumper (Allows for Priority Vote
Setup)
H/P Jumper (Jump for Heat Pump
Operation)
O/B Jumper (Heat Pump Only –
Reversing Valve Operation)
EH Jumper (Set Up Fan Operation for
Electric Heat)
GDigital Display (Leaving Air Temperature
and configuration)
HUp / Down / Set Buttons (High Limit, Low
Limit, Set)
IFan Jumper (Continuous or Auto)
Staging Strategy (Time / Temperature or
Time Only)
JDay / Night Switch
KLock / Unlock (Lock Thermostats)
L
MS S Terminals – Leaving Air Sensor (LAT)
TERMINAL FUNCTIONS / CONNECTIONS
S S – Leaving / Supply Air Sensor Input
G– Fan Output
W2 –
W1 –
Y2 – Stage 2 Cool Output
Y1 – Stage 1 Cool Output
R – 24vac from Unit Transformer
TC / TC – Time Clock Input for Occupied /
Unoccupied Operation
TR1 / TR2 – 24vac Power Input / Common
TX-A / RX-B - Data Transmit / Receive
TR1 & TR2 Power out to EzTouch TR1 & TR2
(18 ga thermostat wire)
TR1 / TR2 - Stat Power Daisy Chain Stat to Stat
(18GA Thermostat wire)
GAS ELECTRIC OPERATION
GEN II-VVT
7 2
SET
DN
UP
S S B
ON
AUTO
TIME/TMP
TIME
EH
O/BHPPRI
NIGHT DAY UNLOCK LOCK
OFF ON
G
W2
W1
Y2
Y1
TC TC
TR1TR2
TR1 TR2 Y1Y2W1W2G R
HP
GE
O/B RY1Y2G W2
A
A
B
C
D
E
F
G
H
I
JK
L
M
OUT IN
A / B Communications Wire
Stage 1 Heat Output
Stage 2 Heat Output

4
3. Install the leaving air sensor (LAT) in the supply air, ahead of the bypass take-off. Sensor wires
are connected to the SSterminals on the controller (M). The LAT sensor leads may be
extended using standard 18/2 thermostat wire.
4. The leaving air sensor (LAT) is calibrated to the controller at the factory. However, the
calibration should be checked as part of the system setup procedure. If adjustments are
required, use the Blue potentiometer labeled R44 located in the upper right hand corner of the
GEN II controller. Screw the pot clockwise to lower the display temperature and counter -
clockwise to raise the temperature. NOTE: The display will update every 10 seconds.
Gas Electric - Basic GEN IIController Configuration
The GEN II is equipped with a Digital Display (G) that constantly displays Leaving
Air Temperature from the unit. The display and 3 buttons beneath the display provide the
installing contractor the ability to tailor the system to your specific application.
The GEN II controller is shipped from the factory configured for basic Gas/Electric operation.
However, the following should be checked as part of the initial installation setup procedures:
1. EH jumper (F) is installed by the factory on one pin for normal gas heat operation where the fan
is controlled by the HVAC system fan control. When a fan output is required from the GEN II
controller on a call for heat, place the EH jumper over both pins for several seconds and then
remove. Place the jumper tab on one pin.
GAS ELECTRIC BASIC CONTROLLER CONFIGURATION
5. Confirm you have connected the Aand B communication wires and TR1 and TR2 from the
thermostats to the Gen II controller (A & L), A=(TR1, TR2), L=(A, B). (Communication
wire maxmum is 4,000 ft. from the Gen II controller to the farthest EzTouch).
6. Connect the output wires from the controller to the HVAC system using standard 18 GA
thermostat wire.
The LAT sensor leads may be extended using standard 18/2 thermostat wire.
GEN II-VVT
7 2
SET
DN
UP
S S B
ON
AUTO
TIME/TMP
TIME
EH
O/BHPPRI
NIGHT DAY UNLOCK LOCK
OFF ON
G
W2
W1
Y2
Y1
TC TC
TR1TR2
TR1 TR2 Y1Y2W1W2G R
HP
GE
O/B RY1Y2G W2
A
A
B
C
D
E
F
G
H
I
JK
L
M
OUT IN

5
2. O/B andHP jumpers (F) should both be on one pin or removed, for GE operation.
3. PRIORITY jumper (F) should be on one pin.
Note: If the Priority opposing call strategy is to be used, this jumper position will be changed
after the initial system start-up is completed.
See Advanced Feature Configuration.
4. Set the power switch (E) to ON.
5. Set the NIGHT DAY switch (J) to the DAY position.
6. Set the fan jumper (I) to AUTO for intermittent operation or ON for constant ON operation in the
Occupied mode.
7. Place the LOCK –UNLOCK switch (K) in the UNLOCK position.
8. Place the TIME/TEMP jumper (I) on the middle and upper pins to control Y2 and W2 staging on
run time and supply air temperature.
GEN II Gas Electric Advanced Feature Configuration
Gas Electric Capacity Control - Cool and Heat cut-out temperature adjust
The factory setting for the Cool and Heat cut-out temperatures is 45°- 145°F (7°- 62°C). This can
be easily changed with the following procedure:
1. Cool cut-out temp – Press the DN button (H); “C” will be displayed and then the cut-out
temperature.
2. LOWER – Press the DN button; after the “C” is displayed, continue to hold the DN button until
the desired temperature is displayed; then release.
NOTE: The controller will not change the Cool cut-out lower than 40°F (4°C).
3. RAISE –Press the DN button; after “C” is displayed, immediately release the DN button and
press the UP button. Hold until the desired temperature reading is displayed and release.
4. Press the DN button to verify the new cool cut-out temperature.
Heat cut-out temperature - Press and hold the UP button; after the “H” is displayed, use the
same procedure as above to raise or lower the displayed temperature.
Electric Heat - Fan Configuration
EH jumper (F) is installed by the factory on one pin for normal gas heat operation where the fan is
controlled by the HVAC system fan control. When a fan output is required from the GEN II
controller on a call for heat, place the EH jumper over both pins for several seconds and then
remove. Place the jumper tab on one pin.
Adjust 2nd Stage Cut-in Time Delay
1. To increase the Y2 and W2 cut-in delay, press and hold the SET and DN buttons (H)
simultaneously. When 03 appears in the display, release the buttons and immediately press
the UP button and hold until the desired delay time is displayed, and release. The time delay
is fully adjustable from 3 - 20 minutes. To verify the change, press and hold the SET and DN
buttons simultaneously until the delay time is shown, and release.
GAS ELECTRIC ADVANCED FEATURE CONFIGURATION
2nd Stage Heat and Cool Cut-in / Cut-out Configuration
The GEN II controller is set up at the factory to stage Y2 and W2 cut-in operation based on a 3-minute
time delay and supply air temperature. This is done using the TIME/TEMP (I) jumper. Time may be
field configured from 3-20 minutes by the contractor during system configuration. The cut-in tempera-
tures are fixed in the controller program at 58°F (14°C) and higher for Y2 and 120°F (48°C) and lower
for W2. The GEN II controller second stage cut-out temperature is fixed in the controller program at
50°F (10°C). Y2 will de-energize when it drops below 50°F and re-energize when it rises above 58°F.
If the air temperature drops below the low cut-out (45°F) Y1 and Y2 are de-energized and the control-
ler will go into a 5 minute purge mode. After 5 minute purge, if the temperature has risen above the
low cut-out Y1 is re-energized. Heat W1 and W2 will de-energize if leaving air temperature rises above
heat cutout and will be locked out for 5 minutes. After 5 minute lockout, if a heat call remains and
leaving air temperature is lower than heat cutout, W1 will re-energize. By placing jumper on bottom
two pins, a time only strategy may be configured into the system. ( see below);

6
2. To decrease the Y2 and W2 cut-in delay, press and hold the SET and DN buttons (H)
simultaneously. When delay time appears in the display, release the buttons and immediately
press the DN button and hold until the desired delay time is displayed, and release. To verify
the change, press and hold the SET and DN buttons until the delay time is shown, and release.
Configure 2nd Stage Cut-in for Time Delay and Thermostat Demand Only
1. Place the 2nd stage configuration jumper (I) on the middle and lower pins - TIME.
2. If the cut-in time delay must be changed from the factory setting of 03 (3 min), follow the above
procedures to raise or lower the time delay value.
3. Verify time delay value by pressing the SET and DN buttons simultaneously.
HEAT PUMP OPERATION
LEGEND
A
BTR1 & TR2 24-Volt Transformer
CTC – TC Time Clock Terminals
DUnit Terminals
EOn / Off Switch
FPriority Jumper(Allows for Priority Vote
Setup)
H/P Jumper(Jump for Heat Pump
Operation)
O/B Jumper(Heat Pump Only –
Reversing Valve Operation)
EH Jumper(Set Up Fan Operation for
Electric Heat)
GDigital Display (Leaving Air Temperature
and configuration)
HUp / Down / Set Buttons (High Limit,
Low Limit, Set)
IFan Jumper(Continuous or Auto)
Staging Strategy(Time / Temperature or
Time Only)
JDay / Night Switch
KLock / Unlock (Lock Thermostats)
LA / B Communications Wire
MS S Terminals – Leaving Air Sensor
(LAT)
HEAT PUMP OPERATION
TR1 &TR2 Power out to EzTouch TR1 & TR2
(18 ga thermostat wire)
TERMINAL FUNCTIONS / CONNECTIONS
S S – Leaving / Supply Air Sensor Input
G– Fan Output
W2 – Auxiliary / Emergency Heat
O/B – Reversing Valve Output
Y2 – Stage 2 Cool Output
Y1 – Stage 1 Cool Output
R – 24vac from Unit Transformer
TC / TC – Time Clock Input for Occupied /
Unoccupied Operation
TR1 / TR2 – 24vac Power Input / Common
TX-A / RX-B - Data Transmit / Receive
TR1 / TR2 - Stat Power Daisy Chain Stat to Stat
(18GA Thermostat wire)
GEN II-VVT
7 2
SET
DN
UP
S S B
ON
AUTO
TIME/TMP
TIME
EH
O/BHPPRI
NIGHT DAY UNLOCK LOCK
OFF ON
G
W2
W1
Y2
Y1
TC TC
TR1TR2
TR1 TR2 Y1Y2W1W2G R
HP
GE
O/B RY1Y2G W2
A
A
B
C
D
E
F
G
H
I
JK
L
M
OUT IN

7
General Installation Instructions
GEN II Controller
1. Install the GEN II controller on an interior wall where the ambient temperature is between 32°-
120°F (0°- 48°C) non-condensing.This controller is to be installed in an accessible interior
area; not in attics or above ceilings.
2. The controller is to be powered by a dedicated 24vac 100va transformer. The transformer seco-
ndary is wired to TR1 TR2 on the controller (B). The secondary voltage to the controller must be
3. Install the LAT air sensor in the supply air betweenthe indoor coil and electric strip heat
elements.
4. The leaving air sensor (LAT) is calibrated to the controller at the factory. However, the
calibration should be checked as part of the system setup procedures. If adjustments are
required, use the Blue potentiometer labeled R44 located in the upper left hand corner of the
GEN II controller. Screw the pot clockwise to lower the display temperature and counter -
clockwise to raise the temperature. NOTE: The display will update every 10 seconds.
Heat Pump operation “O” reversing valve
Cool Call – When a majority active cool call is received by the GEN II controller, Y1, O/B and G
LEDs are illuminated; and the outputs are energized (within 1.5 to 3 minutes). After 3 minutes, if
the leaving air temperature is 58°F (14°C) or above, Y2 will energize for 2-stage systems. Y2 will
de-energize when it drops below 50°F and re-energize when it rises above 58°F. If the supply air
temperature drops one degree below the Cool cut-out temperature, Y1 and Y2 will de-energize
“B” reversing valve – Sequence of operation is the same: O/B is energized in the heat mode.
Heat Call - When a majority active heat call is received by the GEN II controller, Y1 and G LEDs are
illuminated; and the outputs are energized (within 1.5 to 3 minutes). If after 3 minutes the leaving
air temperature is 94°F (34°C) or less, Y2 will energize. If after 6 minutes of run time the leaving air
temperature is 91°F (32°C) or less, W2 will energize. If the supply air temperature exceeds 126°F
(52°C), Y1, Y2 and W2 (if energized) will drop out; and Y1 can then energize after a 5-minute time
delay. NOTE: If the system fan is configured for “AUTO” on the GEN II controller, the “G” output
will be de-energized in the temperature cut-out mode.
When the last active call satisfies, the GEN II controller goes into a 5-minute purge cycle with all
supply dampers closing; then all dampers modulate open for ventilation.
GENERAL INSTALLATION INSTRUCTIONS
5. Confirm you have connected the Aand B communication wires and TR1 and TR2 from the
thermostats to the Gen II controller (A & L), A=(TR1, TR2), L=(A, B). (Communication wire
maximum is 4,000 ft. from the Gen II controller to the farthest EzTouch).
6. Connect the output wires from the controller to the HVAC system using standard 18 GA
thermostat wire.
The LAT sensor leads may be extended using standard 18/2 thermostat wire.
for 5 minutes.
Heat Pump operation “B” reversing valve
By placing the O/B jumper (B) on both pins, the GEN II controller is configured for “B” reversing
valve operation.The operation and setup procedures are the same as with “O” mode reversing
valve, except the reversing valve will be energized for heat operation.
24 to 28vac. DO NOT ground out the transformer.

8
GEN IIHeat Pump Basic Configuration
The GEN II controller is shipped from the
factory for Gas Electric operation.
The controller must be field configured for Heat
Pump operation.
Heat Pump configuration:
1. Switch controller to OFF (E).
2. Set the O/B jumper (F) on one pin for “O”
reversing valve (energizes for cool) or
Set the O/B jumper (F) on both pins for “B”
reversing valve (energizes for heat).
3. Set the HP jumper (F) on both pins for Heat
Pump operation.
4. Set the Priority jumper (F) on one pin.
5. Set the TIME / TEMP jumper (I) on the
middle and upper pins.
6. Set NIGHT / DAY switch (J) for DAY position.
7. Set LOCK / UNLOCK switch (K) to UNLOCK.
8. Switch the controller to ON (E).
9. Press the UP button (H), and verify the “H” (cut-out) temperature reads 126°F (52°C) on the
controller display (G).
NOTE: The heat cut-out temperature must notbe changed from the factory setting.
HEAT PUMP BASIC CONTROLLER CONFIGURATION
GEN II-VVT
7 2
SET
DN
UP
S S B
ON
AUTO
TIME/TMP
TIME
EH
O/BHPPRI
NIGHT DAY UNLOCK LOCK
OFF ON
G
W2
W1
Y2
Y1
TC TC
TR1TR2
TR1 TR2 Y1Y2W1W2G R
HP
GE
O/B RY1Y2G W2
A
A
B
C
D
E
F
G
H
I
JK
L
M
OUT IN

9
3. RAISE – Press the DN button. After “C” is displayed, immediately release the DN button, and
press the UP button. Hold until the desired temperature reading is displayed; then release.
4. Press the DN button to verify the new cool cut-out temperature.
Adjust 2nd Stage Cut-in Time Delay
1. To increase the Y2 and W2 cut-in delay, press and hold the SET and DN buttons (H)
simultaneously. When 03 appears in the display, release the buttons and immediately press
the UP button and hold until the desired delay time is displayed, and release. The time delay
is fully adjustable from 3 - 20 minutes. To verify the change, press and hold the SET and DN
buttons simultaneously until the delay time is shown, and release.
2. To decrease the Y2 and W2 cut-in delay, press and hold the SET and DN buttons (H)
simultaneously. When delay time appears in the display, release the buttons and immediately
press the DN button and hold until the desired delay time is displayed, and release. To verify
the change, press and hold the SET and DN buttons until the delay time is shown, and release.
Configure Y2 and W2 Cut-in for Time Delay and Thermostat Demand Only
1. Place the 2nd stage configuration jumper (I) on the middle and lower pins - TIME.
2. If the Y2 cut-in time delay must be changed from the factory setting of 03 (3 min), follow the
above procedures to raise or lower the time delay value.
NOTE: The cut-in delay timing for W2 (Aux Heat) is set for approximately 3 minutes in the
control program and cannot be manually changed.
3. Verify time delay value by pressing the SET and DN buttons simultaneously.
HEAT PUMP ADVANCED FEATURE CONFIGURATION
GEN IIHeat Pump Advanced Feature Configuration
Heat Pump Capacity Control - Cool and Heat cut-out temperature adjustment
When the GEN II controller is configured for Heat Pump (HP jumper (F) on both pins), the Cool and
Heat cut-out temperatures are 45°- 126°F (7°- 52°C). The cut-out temperatures can be changed
with the following procedure:
Heat cut-out temp – To eliminate the possibility of the Heat Pump tripping out on high head
pressure or short cycling in the heat mode, the heat cut-out temperature should never be changed
from the factory setting of 126°F (52°C).
1. Cool cut-out temp – Press the DN button (H); “C” will be displayed, then the cut-out
temperature.
2. LOWER – Press the DN button. After the “C” is displayed, continue to hold the DN button until
the desired temperature is displayed; then release.
NOTE: The controller will not change the Cool cut-out lower than 40°F (4°C).
2nd Stage Heat and Cool Cut-in / Cut-out Configuration
The GEN II controller is set up at the factory to stage Y2 and W2 cut-in operation based on a 3-minute
time delay and supply air temperature. This is done using the TIME/TEMP (I) jumper. Time may be
field configured from 3-20 minutes by the contractor during system configuration. The cut-in tempera-
tures are fixed in the controller program at 58°F (14°C) and higher for Y2 and 120°F (48°C) and lower
for W2. The GEN II controller second stage cut-out temperature is fixed in the controller program at
50°F (10°C). Y2 will de-energize when it drops below 50°F and re-energize when it rises above 58°F.
If the air temperature drops below the low cut-out (45°F) Y1 and Y2 are de-energized and the control-
ler will go into a 5 minute purge mode. After 5 minute purge, if the temperature has risen above the
low cut-out Y1 is re-energized. Heat W1 and W2 will de-energize if leaving air temperature rises above
heat cutout and will be locked out for 5 minutes. After 5 minute lockout, if a heat call remains and
leaving air temperature is lower than heat cutout, W1 will re-energize. By placing jumper on bottom
two pins, a time only strategy may be configured into the system. ( see below);

10
Installation
Wiring
All 24-volt and communication wiring connections are made to terminal blocks on the thermostat
sub-base. The communication terminal block (A/B / A/B) is designed as a junction for
22 ga tinned copper, twisted pair communications cable. The cable should be daisy
thermostat to thermostat (use Belden 8740 or Zonex supplied equal).
1. Install the thermostat sub-base on an interior wall away from direct sunlight, supply air currents,
or any heat generating source. Mounting screws and anchors are provided. The sub-base
may be installed on a horizontal 2x4 electrical box.
2. Connect the control wires from the EzTouch’s TR1 & TR2, to the GEN II controller TR1 & TR2
(A). Verify TR1 & TR2 polarity is the same on each thermostat (18 ga Thermostat wire).
3. On the EzTouch, connect the damper output wires from MC, RC and RO to the actuator
motor terminals.
4. Connect the A / B communication wires on the left hand terminal block; there are 2 sets of
A / B terminals to make the daisy chain wiring easier.
NOTE: The communication wire must be twisted pair Belden 8740, 8450 (shielded), 82442
(plenum rated) or Zonex supplied equal.
ZONE THERMOSTAT - EzTouch
Power Communication
R = TR1 RX = B
C = TR2 TX = A
Terminal Connections
DAISY CHAIN 24VAC AND
DATALINK CABLE (BELDEN 8740)
TO ALL ZONE EZTOUCH’S
EXPANDABLE TO 17 ZONES
chained from
two sets of
When the GEN II controller is powered up, the total number of addressed thermostats (EzTouchs) are
determined and verified on the display. This confirms the controller is communicating with all thermostats
in the system. If there are no active heat or cool calls detected, the supply dampers will modulate to 40%
open for ventilation mode. The system blower operation can be configured for constant ON or intermittent
Auto. The controllers are shipped from the factory for Auto fan.
The GEN II systems can be field configured for adjustable time based opposing call changeover, vote
based majority changeover, or priority vote changeover by thermostat assignment. The GEN II controller
is shipped from the factory for 10-minute opposing call changeover. The GEN II controller “polls” the
thermostats once per minute to determine the thermostat demand status for heat and cool. The heat and
cool changeover functions will operate by the type of changeover selected on the controller. When the
GEN II controller changes modes, a 5-minute purge cycle is initiated before the changeover is completed.
On active heat or cool calls, the non-calling zones will modulate to the closed position. When the last
calling zone is satisfied in either heat or cool mode, the GEN II controller terminates the HVAC outputs
after the next “poll” and the blower output will be de-energized (unless controller is configured for constant
fan) for a 5-minute purge cycle. During the purge cycle no heat or cool calls are recognized.
When the system is in the heating mode and calls for cooling are received, an opposing call timer strategy
operates. This timer is adjustable from 10 - 30 minutes. The factory default is 10 minutes. At the end of
the selected time period, if the opposing call is 3° away from set point, heating is turned off. After a 5-min-
ute purge mode, Cooling is turned on until the cool call is satisfied. If necessary, GEN II will return to the
heating mode, If all calls have been satisfied, dampers will modulate to the 40% open position for ventila-
tion. If the opposing zone strategy is not desired, this feature may be disabled.
This mode may be enhanced by adding Priority votes to each thermostat in the system, thereby weighting
certain zones more than others. This Priority mode allows you to select 0, 1, or 2 additional votes for a
thermostat that has unusual loads, like a conference room.
Minimum / Maximum damper positions can be set to provide ventilation. Each thermostat has Auxiliary
contacts that support and control a supplemental heat source i.e., baseboard, reheat, or hot water coil, to
meet the temperature requirements of any commercial application.
MODULATING DAMPER
DM-1
MODULATING DAMPER
DM-3
MODULATING DAMPER
DM-2
MC
RC
RO
MC
RC
RO
MC
RC
RO
7 2
SET
DN
UP
S S
B A
C1
GEN II-VVT
ON
AUTO
TIME/TMP
TIME
EH
O/BHPPRI
NIGHT DAY UNLOCK LOCK
OFF ON
G
W2
W1
Y2
Y1
TC TC
TR1TR2
TR2
TR1 Y1Y2W1W2G R
HP
GE
O/B RY1Y2G W2
0 2 4 6 8 10 12
14
16
18
20
22
24
Mo
Tu
We
Th
Fr
Sa
Su
+1h
OVR AUTO
_
+
Mode
Menu OK
11:25
AM
1 2 3 4 5
M
GCLK
OUT IN
MC
RO
RC
A
B
GND
AUX
DS
COM
DS
TR1
TR2
T-1
MC
RO
RC
A
B
GND
AUX
DS
COM
DS
TR1
TR2
T-2
MC
RO
RC
A
B
GND
T-3
AUX
DS
COM
DS
TR1
TR2
Optional Duct Temperature monitoring
(LAT sensor is not included)
   
           
    
    
   
           
    
    
   
           
    

    
24VAC
100VA

11
Current Room
Temperature
Modes
Cool Set Point
Menu
Duct Temperature
Heat Set Point
Addressing Zone Thermostats
EzTouch CONFIGURATION
Every thermostat in the system needs a unique ID ranging from 1-17. They must be in numerical order the way the
communication wire is daisy chained. Confirm no duplicate addresses.
To set the stat’s ID access the Advanced Configuration menu by tapping on the degree symbol next to the room
temp . The degree symbol will change from white to green and then tap
Once in the Thermostat Advanced Menu, Select SET ID
Use the and arrows and set the new ID ranging from 1-17
Tap to save changes, to return to the home screen tap
Select Damper Type
The EzTouch needs to be configured for the type of damper that it is wired to. There are 4 options, round,
rectangular or spring loaded.
To set the stat’s ID access the Advanced Configuration menu by tapping on the degree symbol next to the room
temp . The degree symbol will change from white to green and then tap
While in Thermostat Configuration Menu, Select Damper Type
Select round, rectangular or spring loaded damper operation
Tap to save changes, to return to the home screen tap
   
           
    

    
Active Heat Call when Soild
In standby when Flashing
MENUOCCUPIED UNOCCUPIEDMENU HOME
HOME
Active Cool Call when Soild
In standby when Flashing

12
Display Temperature Calibration
Thermostats are calibrated at the factory and should require no further adjustment. However, the display space
temperature may be field calibrated by the following procedure:
To access the Thermostat Configuration Menu: Tap
While in Thermostat Configuration Menu, Select Calibrate Display
Use the
and arrows to calibrate the thermostat display to a external temperature probe temperature reading.
Tap to save changes, to return to the home screen tap
Adjusting Set Points
The Heat or Cool set points are displayed at the bottom of the screen. To adjust the set points, tap on the heat-to
or cool-to temperatures; the set points will be displayed on the screen.
Use the
and arrows over the flame/snowflake icons to set the desired heat and cool set points.
Tap to save changes
The Heat and Cool set points can be individually set for the Occupied and Unoccupied modes.
Occupied Mode: Heat to and Cool to settings - When the Day/Night switch is in the DAY position, or time
clock in Occupied.
Unoccupied Mode: Heat to and Cool to settings - When the Day/Night switch is in the NIGHT position,
or time clock in Unoccupied.
Changing Mode
The thermostats are auto changeover, but specific modes may be selected. Heat/Cool mode is the default.
System Heat/Cool - Tap on , select “Heat/Cool”. Tap to save changes
System Heat Only - Tap on , select “Heat Only”. Tap to save changes
System Cool Only - Tap on , select “Cool Only”. Tap to save changes
System Off - Tap on , select “Off”. Tap to save changes
Override Operation
When the thermostat displays the unoccupied icon a 2-hour temporary override may be initiated by tapping
the “Override” will appear. When additional override time is required, tap the unoccupied icon again.
Auxiliary Heat / Reheat
The zone thermostat provides the following Auxiliary Heat options; Baseboard, Baseboard W1 and Reheat (see
figure on the following page for more details) with configurable dead band of 2°, 3°, or 4°. Note: Reheat has a
fixed 2° dead band. And when using in duct electric strip heater, an airflow proving switch is required for
safe operation.
Configuration of Auxiliary Heat/Reheat is accomplished by selecting “SELECT AUX HEAT” function in the
Advanced Menu. To access the Advanced Menu tap the degree symbol of the room temperature (the degree
symbol should change color to green) then tap the in the upper right corner of the thermostat, Tap “Select
Aux Heat”, Select the desired Auxiliary Heat/Reheat and dead band (2°, 3°, or 4°). Tap on to save desired
settings. To return to the home screen tap
EzTouch CONFIGURATION
    
    
    
    

13
   
           
    
While in the Thermostat Configuration Menu, Select Override/Unoccupied
Tap “override” to place the thermostat into a override mode.
Tap to save changes, to return to the home screen tap
Shortcut note: Tap on to place the thermostat into 2 hour override mode
THERMOSTAT CONFIGURATION MENU
To access the Thermostat Configuration Menu: Tap
The THERMOSTAT CONFIGURATION MENU allows you to:
Override/Unoccupied Select Unoccupied Light Current Schedule Calibrate Display
Set Temperature Mode Time & Date
Select Occupied Light Set Display Accuracy Temperature F/C
OVERRIDE/UNOCCUPIED
When a thermostat displays “unoccupied mode ”, a 2-hour temporary
override maybe initiated.
EzTouch CONFIGURATION MENU
SELECT OCCUPIED LIGHT
While in Thermostat Configuration Menu, Select Occupied Light
Use the
and arrows to select the desired brightness.
Tap to save changes, to return to the home screen tap
Note: If “off” is selected, just touch stat to wake it up.
         
The brightness of the thermostat during occupied mode is adjustable from
100% down to off .

14
While in the Thermostat Configuration Menu, Select Set Temperature
Use the
and arrows over the flame/snowflake icons to set the
desired heat and cool set points.
Tap to save changes, to return to the home screen tap
Shortcut note: Tap on cool to/heat to to adjust setpoints.
THERMOSTAT CONFIGURATION MENU
To access the Thermostat Configuration Menu: Tap
The THERMOSTAT CONFIGURATION MENU allows you to:
Override/Unoccupied Select Unoccupied Light Current Schedule Calibrate Display
Set Temperature Mode Time & Date
Select Occupied Light Set Display Accuracy Temperature F/C
When in the “Set Temperature” screen you can adjust the heat/cool set points to
their desired temperature settings.
SET TEMPERATURE
MODE
Thermostat mode allows the thermostat to be set to heat/cool, cool only, heat
only of off operation.
EzTouch CONFIGURATION MENU
While in the Thermostat Configuration Menu, Select Mode
Select the the desired mode operation
Tap to save changes, to return to the home screen tap
Shortcut note: Tap on the home screen to access the mode selection
screen
    
SELECT UNOCCUPIED LIGHT
While in Thermostat Configuration Menu, Select Unoccupied Light
Use the
and arrows to select the desired brightness.
Tap to save changes, to return to the home screen tap
Note: If “off” is selected, just touch stat to wake it up.
The brightness of the thermostat during unoccupied mode is adjustable from
100% down to off .
         

Display accuracy allows the thermostat to display the room temperature in 1/10°
or 1°.
14
TEMPERATURE F/C
CALIBRATE DISPLAY
The EzTouch can be configured for F° or C° operation.
EzTouch CONFIGURATION MENU
SET DISPLAY ACCURACY
Thermostat is equipped with an accurate temperature sensor. If you require
field calibration, follow the steps below.
While in the Thermostat Configuration Menu, Select Set Display Accuracy
Select the the desired display accuracy
Tap to save changes, to return to the home screen tap
While in Thermostat Configuration Menu, Select Calibrate Display
Use the
and arrows to calibrate the thermostat display to a
external temperature probe temperature reading.
Tap to save changes, to return to the home screen tap
While in the Thermostat Configuration Menu, Select Temperature F/C
Select the the desired temperature operation
Tap to save changes, to return to the home screen tap

   
           
    
    
15
While in the Thermostat Advanced Menu, Select Aux Heat
Select the the desired auxiliary heat operation and dead band
Tap to save changes, to return to the home screen tap
Note: Reheat has a fixed 2° dead band.
While in the Thermostat Advanced Menu, Select SET ID
Use the and arrows to set the new ID ranging from 1-17
Tap to save changes, to return to the home screen tap
THERMOSTAT ADVANCED MENU
To access the Thermostat Advanced Menu: Tap on the degree symbol next to the room temp .
The degree symbol will change color from white to green and then tap .
The THERMOSTAT ADVANCED MENU allows you to:
Set ID Select damper type Select Menu Type
Select Aux Heat Temp Source Diagnostic
STAT ID
Every thermostat in the system needs a unique ID. They must be ID’ed in
numerical order the way the communication wire is daisy chained. No duplicate
addresses.
The zone thermostat provides the following Auxiliary Heat options; Baseboard,
Baseboard W1 and Reheat with configurable dead band of 2°, 3°, or 4°.
SELECT AUX HEAT
EzTouch ADVANCED MENU
01
03
     
   
           
    

    
     
   
           
    

    
         
id
1
select aux heat
baseboard-db2
select damper type
round
select temp source
duct
select menu type
advanced
select from menu