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CONTENTS
Installation 2
Location 2
Installation 2
Terminal, Identification and Function 4
Wiring 4
Screw terminal arrangement 5
Main outputs wiring 5
Typical applications 6
Remote sensor accessories 7
Configuring and Status Display Instructions 9
Status display 9
User Interface 12
12
User configuring instructions menu 12
Local keypad interface 12
VT7600 Series
Installation Guide
November 2015
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INSTALLATION
Remove security screw on bottom of Room
Controller cover.
Open unit by pulling on bottom side
of Room Controller (fig. 1).
Remove wiring terminals from
sticker.
Read FCC ID and IC label installed
in the cover.
Location
1. Should not be installed on an outside
wall.
2. Must be installed away from any
direct heat source.
3. Should not be installed near air
discharge grill.
4. Should not be affected by direct
sun radiation.
5. Nothing should restrict vertical
air circulation to Room
Controller.
Installation
1. Swing open Room Controller
PCB to left by pressing PCB
locking tabs (fig. 2).
2. Pull out cables 6” out from wall.
Ensure wall surface is flat and
clean.
3. Insert cable in central hole of
base.
4. Align base and mark location of
two mounting holes on wall
ensuring proper side of base is
up.
5. Install anchors in wall.
6. Insert screws in mounting holes
on each side of base (fig. 2).
7. Gently swing back circuit board
on base and push until tabs
lock.
8. Strip each wire 1/4 inch from
end.
9. Insert each wire according to
wiring diagram.
10. Gently push excess wiring back
into hole (fig. 3).
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11. Re-Install wiring terminals in correct locations (fig. 3).
12. Re-install cover (top side first) and gently push extra wire length back into hole in
wall.
13. Install security screw.
If replacing an existing Room Controller, label the wires before removal
of the Room Controller.
Electronic controls are static sensitive devices. Discharge yourself
properly before manipulating and installing the Room Controller.
A short circuit or wrong wiring may permanently damage the Room
Controller or the equipment.
All VT7000 series Room Controllers are designed for use as operating
controls only and are not safety devices. These instruments have
undergone rigorous tests and verification prior to shipping to ensure
proper and reliable operation in the field. Whenever a control failure
could lead to personal injury and/or loss of property, it becomes the
responsibility of the user / installer / electrical system designer to
incorporate safety devices (such as relays, flow switch, thermal
protections, etc…) and/or an alarm system to protect the entire system
against such catastrophic failures. Tampering with the devices or
unintended application of the devices will result in a void of warranty.
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TERMINAL, IDENTIFICATION AND FUNCTION
Wiring
Multistage
1H / 1C
Heat Pump
Part Number
VT7656B
VT7605B
VT7652B
VT7600B
VT7652A
VT7600A
Part
Number
VT7652H
VT7600H
Schedule
Yes
No
Yes
No
Yes
No
Schedule
Yes
No
Top left terminal
Top left terminal block
Y2
X X X X Y2
X X Y1
X X X X X X Y1
X X G
X X X X X X G
X X RC
X X X X X X RC
X
X
C
X X X X X X C
X
X
Top right terminal
Top right terminal block
RH
X X X X X X RH
X X W1
X X X X X X W1
X X W2
X X X X O/B
X
X
Bottom terminal block
Bottom terminal block
Econo
X X
Aux
X X X X X X Aux
X X DI1
X X X X X X DI1
X
X
DI2
X X X X X X DI2
X X RS
X X X X X X RS
X X Scom
X X X X X X Scom
X X OS
X X X X X X OS
X X MS
X X X X X X MS
X
X
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Screw terminal arrangement
Main outputs wiring
Wiring notes:
Note 1: If the same power source is used for the heating stages, install jumper across RC &
RH. Maximum current is 2.0 amps.
Note 2: If auxiliary output is used to toggle occupancy of the electronic control card inside
the equipment, configure the relay parameter (Aux cont) to the N.O. setting. A
second relay can be added for additional functionality of the occupancy output.
Note 3: Economizer output uses a half bridge rectifier. Reference of the control signal is the
common of the power supply of the Room Controller. (Terminal C)
Note 4: Electromechanical contacts are to be used with the digital inputs. Electronic triacs
cannot be used as mean of switching for the input. The switched leg to the input for
the input to activate is terminal C (common)
Note 5: The transformer of the unit provides power to the t Room Controller and the
additional loads that will be wired to the Room Controller.
EC
AU
D1
D2
RS
Scom
OS
MS
Y2Y1G
RC
C
RH
W1
W2
O/B
5 pole left top connector
3 pole left top connector
8 pole bottom connector
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TYPICAL APPLICATIONS
VT7656B5X00(X)
2 Heat / 2 Cool / Economizer / With Schedule
VT7652H5X00(X)
Heat pump / Without Schedule
Auxiliary
Heat
W1
System wiring
Jumper J1
Thermostat internal wiring
Compressor
Stage 1
24 VAC
T1
Compressor
Stage 2
Y2
Jumper J1
See note 1
(previous
page)
Fan
G
Y1
RC C RH
Remote
Room
Sensor
Field contacts
Reversing
Valve
Digital Input #2
Digital Input #1
Auxiliary
Output
O/B
AU
DI1
DI2
Scom
RS
Remote
Outdoor
Sensor
Remote
Mixed Air
Sensor
MS
OS
Controller Terminals -
VT7652H5x00
Y2
DI1
DI2
AU
Y1
RC G O/B
OS
RS
Scom
RH C W1
MS
Heat
Stage 2
Cool
Stage 1
System wiring
Thermostat internal wiring
Jumper J1
T1
24 Vac
Cool
Stage 2
Y2 Y1
Jumper J1
See note 1
(previous
page)
Fan
RCG C
Heat
Stage 1
W1RH W2
Auxiliary
Output
Field contacts
Com24V
Remote
Outdoor
Sensor
Digital Input #2
Digital Input #1
Remote
Room
Sensor
0-10 Vdc
EC
AU
DI1 DI2 RS
Remote
Mixed Air
Sensor
MSScom OS
Controller Terminals -
VT7656B5x00
Y2
EC
RC
G
Y1
AU
DI1
DI2
W2
MS
W1
RH
C
Scom
RS
OS
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Remote sensor accessories
MODEL NO.
DESCRIPTION
S3010W1000
Wall mounted temperature sensor
S3020W1000
Wall mounted temperature sensor+override button and occupancy
status
S2020E1000
Outdoor temperature sensor
S2060A1000
Averaging temperature sensor
S2000D1000
Duct mounted temperature sensor
Remote mount temperature sensors use 10K NTC thermistor.
This sensor can be used for:
Various averaging combinations
Optional occupancy led
Optional override key
Wall mounted sensor
WIRING EXAMPLE OF SINGLE REMOTE ROOM SENSOR:
AU
D1
RS
Scom
C
D2
Scom
RS
Scom
RS
C
DI
Aux
Scom
RS
Scom
RS
OR
VT7600 Series
1x S3020W1000
Remote wiring 1 sensor
S2-1 = ON / S2-2 = ON
S3010W1000
Remote wiring 1 sensor
S2-1 = ON / S2-2 = ON
1
2
ON
Dip switch
setting for:
1 sensor
S2-1 = ON
S2-2 = ON
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WIRING EXAMPLES OF 2 REMOTE ROOM SENSORS FOR AVERAGING
APPLICATIONS:
WIRING EXAMPLES OF 3 REMOTE ROOM SENSORS FOR AVERAGING
Notes for averaging applications:
S3010W1000 and S3020W1000
can be mixed matched.
S3010W1000 and S3020W1000
are to be wired in parallel.
Respect the dip switch setting in
each remote sensor.
AU
D1
RS
Scom
C
D2
ScomRSScom
RS
C
DI
Aux
ScomRSScom
RS
C
DI
Aux
AU
D1
RS
Scom
C
D2
Scom
RS
Scom
RS
Scom
RS
Scom
RS
C
DI
Aux
VT7600 Series
2x S3020W1000
Remote wiring 2 sensors
S2-1 = OFF / S2-2 = ON
AU
D1
RS
Scom
C
D2
Scom
RS
Scom
RS
Scom
RS
Scom
RS
2x S3010W1000
Remote wiring 2 sensors
S2-1 = OFF / S2-2 =
VT7600 Series
VT7600 Series
1x S3010W1000 and 1x S3020W1000
Remote wiring 2 sensors
S2-1 = OFF / S2-2 = ON
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Temperature vs. resistance chart for 10 Kohm NTC thermistor
ºC
ºF
Kohm
ºC
ºF
Kohm
ºC
ºF
Kohm
ºC
ºF
Kohm
ºC
ºF
Kohm
-40
-40
324.3197
-20
-4
94.5149
0 32
32.1910
20
68
12.4601
40
104
5.3467
-39
-38
303.6427
-19
-2
89.2521
1 34
30.6120
21
70
11.9177
41
106
5.1373
-38
-36
284.4189
-18 0 84.3147
2 36
29.1197
22
72
11.4018
42
108
4.9373
-37
-35
266.5373
-17 1 79.6808
3 37
27.7088
23
73
10.9112
43
109
4.7460
-36
-33
249.8958
-16 3 75.3299
4 39
26.3744
24
75
10.4443
44
111
4.5631
-35
-31
234.4009
-15 5 71.2430
5 41
25.1119
25
77
10.0000
45
113
4.3881
-34
-29
219.9666
-14 7 67.4028
6 43
23.9172
26
79
9.5754
46
115
4.2208
-33
-27
206.5140
-13 9 63.7928
7 45
22.7861
27
81
9.1711
47
117
4.0607
-32
-26
193.9703
-12
10
60.3980
8 46
21.7151
28
82
8.7860
48
118
3.9074
-31
-24
182.2686
-11
12
57.2044
9 48
20.7004
29
84
8.4190
49
120
3.7607
-30
-22
171.3474
-10
14
54.1988
10
50
19.7390
30
86
8.0694
50
122
3.6202
-29
-20
161.1499
-9
16
51.3692
11
52
18.8277
31
88
7.7360
51
124
3.4857
-28
-18
151.6239
-8
18
48.7042
12
54
17.9636
32
90
7.4182
52
126
3.3568
-27
-17
142.7211
-7
19
46.1933
13
55
17.1440
33
91
7.1150
53
127
3.2333
-26
-15
134.3971
-6
21
43.8268
14
57
16.3665
34
93
6.8259
54
129
3.1150
-25
-13
126.6109
-5
23
41.5956
15
59
15.6286
35
95
6.5499
55
131
3.0016
-24
-11
119.3244
-4
25
39.4921
16
61
14.9280
36
97
6.2866
56
133
2.8928
-23
-9
112.5028
-3
27
37.5056
17
63
14.2629
37
99
6.0351
57
135
2.7886
-22
-8
106.1135
-2
28
35.6316
18
64
13.6310
38
100
5.7950
58
136
2.6886
-21
-6
100.1268
-1
30
33.8622
19
66
13.0307
39
102
5.5657
59
138
2.5926
CONFIGURING AND STATUS DISPLAY INSTRUCTIONS
Status display
The Room Controller features a two-line, eight-character display. There is a low level
backlight level that is always active and can only be seen at night.
When left unattended, the Room Controller has an auto scrolling display that shows the
actual status of the system.
Each item is scrolled one by one with the back lighting in low level mode. Pressing any key
will cause the back light to come on to high level.
Manual scroll of each menu item is achieved by pressing the Yes (scroll) key repetitively.
The last item viewed will be shown on the display for 30 seconds before returning to
automatic scrolling. Temperature is automatically updated when scrolling is held.
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Sequence of auto-scroll status display:
ROOM
TEMPERATURE
CLOCK
STATUS
SYSTEM
MODE
SCHEDULE
STATUS
OUTDOOR
TEMPERATURE
ALARMS
x.x °C
or °F
XX % RH
Monday
12:00
AM
Sys mode
auto
Occupied
Outdoor
x.x °C or°F
Service
Sys mode
off
Occupied
hold
Frost
ON
Sys mode
heat
Unoccup
SetClock
Sys mode
cool
Filter
Sys mode
emergency
Fan lock
Outdoor air temperature
Outdoor air temperature display is only enabled when outdoor air temperature sensor is
connected.
A maximum range status display of 50 °C ( 122 °F ) indicates a shorted sensor.
Associated functions, such as mode lockouts and economizer function are
automatically disabled.
A minimum range status -40 °C ( -40 °F ) is not displayed and indicates a opened
sensor or a sensor not connected. Associated functions, such as mode lockouts and
economizer function are automatically disabled.
Alarms
If alarms are detected, they will automatically be displayed at the end of the status
display scroll.
During an alarm message display, the back lit screen will light up at the same time as
the message and shut off during the rest of the status display.
Two alarms maximum can appear at any given time.
The priority for the alarms is as follows:
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Frost ON
Indicates that the heating is energized by the low limit frost protection
room temperature setpoint 5.6 °C ( 42 °F )
SetClock
Indicates that the clock needs to be reset. There has been a power failure
which has lasted longer than 6 hours
Service
Indicates that there is a service alarm as per one of the configurable digital
input ( DI1 or DI2 )
Filter
Indicates that the filters are dirty as per one of the configurable digital input
( DI1 or DI2 )
Fan lock
Indicates that the heating and cooling action are locked out due to a
defective fan operation
Three status LEDs on the Room Controller cover are used to indicate the status of the
fan, a call for heat, or a call for cooling.
When any of the fan is ON, the FAN LED will illuminate
When heating is ON, the HEAT LED will illuminate
When cooling is ON, the COOL LED will illuminate
LED
OPERATION
HEATPUMP
MODELS VT76XXH
MULTISTAGE AND
SINGLE STAGE
MODELS
VT7600A, VT7652A,
VT7600B &
VT7652B
MULTISTAGE
ECONOMIZER
MODELS
VT7605B &
VT7656B
Fan LED on
When G Fan terminal
operates
When G Fan terminal
operates
When G Fan terminal
operates
Heating LED
on
When Y1 and / or W1
terminal(s) operate in
heating mode
When W1 terminal
operate in heating
mode
When W1 terminal
operate in heating
mode
Cooling LED
on
When Y1 terminal
operate in cooling
mode
When Y1 terminal
operate in cooling
mode
When Y1 terminal
operate in cooling
mode and or
economizer output is
in function
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USER INTERFACE
User configuring instructions menu
The VT7600 series of Room Controller feature an
intuitive, menu-driven, back-lit LCD display that
walks users through the configuring steps, making
the configuring process extremely simple. This
menu is typically accessed by the user to set the
parameters such as temperature and time events,
system mode, fan mode, etc.
It is possible to bring up the user menu at any time
by depressing the MENU key. The status display automatically resumes after exiting the
user-configuring menu.
If the user pauses at any given time during configuring, Auto Help text is displayed to help
and guide the user through the usage and configuring of the Room Controller.
Ex.:
Press yes key to change cooling temperature setpoint
Use the up or down arrow to adjust cooling setpoint
Local keypad interface
Each of the sections in the menu is accessed and configured using 5 keys on the Room
Controller cover.
The priority for the alarms is as follows:
The YES key is used to confirm a selection, to move onto the next menu item
and to manually scroll through the displayed information.
The NO key is used when you do not desire a parameter change, and to
advance to the next menu item. Can also be used to toggle between heating
and cooling setpoints.
The MENU key is used to access the Main User Menu or exit the menu.
The down arrow key is used to decrease temperature setpoint and to adjust
the desired values when configuring the Room Controller.
The up arrow key is used to increase temperature setpoint and to adjust the
desired values when configuring the Room Controller.
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Viconics Technologies Inc.
Tel.: Fax: Toll free:
www.viconics.com
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