OR EBUS DRS TGD 01H

OR EBUS DRS TGD 01H
E-BUS Digital Room Sensor
Technical Guide
TABLE OF CONTENTS
OVERVIEW ....................................................................................................................................... 3
BASIC OPERATION.......................................................................................................................... 4
Sensor Operation ..................................................................................................................................................... 4
LED Operation ......................................................................................................................................................... 4
MOUNTING AND WIRING ................................................................................................................ 5
Environmental Requirements ................................................................................................................................... 5
Important Wiring Considerations .............................................................................................................................. 5
Mounting .................................................................................................................................................................. 5
SENSOR OPERATION ...................................................................................................................... 6
Main Sensor Display Screens.................................................................................................... 6
Temperature and Humidity Status Screen .......................................................................................................... 6
Outside Air Temperature Humidity Status Screen............................................................................................... 6
Unit Information Screen ...................................................................................................................................... 6
Setpoint Adjust Screen ....................................................................................................................................... 7
Operation Modes ................................................................................................................................................ 7
TROUBLESHOOTING ....................................................................................................................... 8
Temperature Sensor Testing ................................................................................................................................... 9
APPENDIX ..................................................................................................................................... 10
Sensor Configuration and Test Screens ................................................................................................................ 10
Connecting the Digital Room Sensor to the HVAC Unit Controller ........................................................................ 12
Connecting a Wall Mounted E-BUS CO2 Sensor to the HVAC Unit Controller ...................................................... 13
Connecting a Remote Sensor ................................................................................................................................ 14
Mounting Plate Dimensions ................................................................................................................................... 17
PART NUMBER CROSS REFERENCE TABLE
PART DESCRIPTION
ORION
E-BUS LCD Digital Room Sensor Temp Only
OE217-02
E-BUS LCD Room Sensor Temp & Humidity
OE217-03
E-BUS Digital Room Sensor Temp & Humidity
OE217-04
E-BUS CO2 Sensor (Wall-Mounted)
OE256-05
Mounting Plate
BK000081
Return Air Temperature Sensor
OE231
VCB-X Controller
OE335-26B-VCBX
VCC-X Controller
OE338-26B-VCCX
www.orioncontrols.com
WattMaster Controls Inc.
8500 NW River Park Drive · Parkville, MO 64152
Toll Free Phone: 866-918-1100
PH: (816) 505-1100 · FAX: (816) 505-1101 ·
E-mail: [email protected]
Visit our web site at www.orioncontrols.com
AAON® is a registered trademark of AAON, Inc., Tulsa, OK.
WattMaster Controls, Inc. assumes no responsibility for errors
or omissions.
This document is subject to change without notice.
Form: OR-EBUS-DRS-TGD-01H Copyright January 2016
WattMaster Controls, Inc.
OVERVIEW
Features
Overview
The OE217 series of E-BUS Digital Room Sensors are used to sense
Space Temperature only or Space Temperature & Space Humidity. See
Figures 1 & 2.
The OE217-02 model is the Space Temperature Sensor only model and
the OE217-03 & OE217-04 models are a combination Space Temperature & Space Humidity Sensor model. The OE217-04 model includes
an enclosure without LCD display, front LEDs, and buttons.
The sensors can be used with the VCB-X Controller (OE335-26BVCBX) and VCC-X Controller (OE338-26B-VCCX) and connect to
the controller using various lengths of EBC E-BUS cables connected
between the controller and the sensor. The EBC E-BUS cables should not
run in conduit with other AC line voltage wiring or with any conductors
carrying highly inductive loads.
The OE217-02 & OE217-03 sensors provide the following useful
functions:
• Provides 112 x 64 monochrome Graphical LCD display with
LED backlight
• Displays the Current Space Temperature
• Displays the Current Space Humidity (OE217-03 Model
Only)
• Displays Outdoor Air Relative Humidity (OE217-03 Model if
controller is configured with an OA Humidity Sensor)
• Displays the Current Zone Setpoint Temperature
• Equipped with Push Buttons for changing the Zone Setpoint
Temperature
• Equipped with an Override Button for forcing the VCB-X
Controller or VCC-X Controller into Occupied Operation
from Unoccupied Operation
• Provides graphics to indicate the Mode of Operation
• Allows connection of a remote 10K Ohm, Type III thermistor
temperature sensor (or 4 sensor averaging array). See
Connecting a Remote Sensor section in the Appendix on page
14 for details.
• Provides LEDs to indicate Schedule Override, Button Push,
and Alarms
• Can display Temperature reading from a Remote Temperature
Sensor (see Figures 20 & 21, pages 14 & 15 for instructions)
• Displays Outdoor Air Temperature (if controller is configured
with an OA Temperature Sensor)
Figure 1: OE217-02 & OE217-03 E-BUS Digital
Room Sensor
Figure 2: OE217-04 E-BUS Digital Room Sensor
E-BUS Digital Room Sensor Technical Guide
3
BASIC OPERATION
Buttons and LEDs
Sensor Operation
LED Operation
When power is first applied to the OE217-02 E-BUS Digital Room
Sensor, the sensor will display the Current Room Temperature and the
current setting of the slide offset. The OE217-03 model will also display
Relative Humidity.
Refer to Figure 3 below for LED locations.
NOTE: The sensor readings are not accurate until the controller
that the sensor is connected to is done calibrating.
The sensor has 4 buttons—<Display>, <Override>, <Up>, and
<Down>. You can also access certain functions by touching the area
below the <Display> and <Override> buttons. The sensor has 3
LEDs—one to indicate an Override, one to indicate an Alarm, and one
to indicate that a button has been pressed. See Figure 3 for LED and
Button Descriptions.
An icon for the current mode of operation will appear in the sensor
display. The operation mode icons are a Snowflake for Cooling Mode,
a Flame for Heating Mode, a Fan in motion for Vent Mode, and a Moon
for Unoccupied Mode. When the unit is in Unoccupied Mode, the
screen’s background will turn dark. See Figure 9, page 7 for examples
of operation modes.
Sense
LED
ALARM
Up
Button
Display
Button
Override LED: The Override LED is inoperable when in Occupied
Mode. In Unoccupied Mode, if you touch the <Override> button, the
Override LED will blink, indicating an override request. The Controller will respond by sending the unit into override. The Override LED
will then stay on for the duration of the Override. Any time the Unit
is in Override, you can request to cancel the override by touching the
<Override> button, and the Override LED will blink. The Unit will
then cancel the override. The Override LED will then turn off.
Comm LED: The Comm LED located on the back of the sensor
blinks on whenever communications are sensed.
Alarm LED
E-BUS Cable
Connection
MICROCHIP
PIC24HJ
256GP206
OVERRIDE
Sense LED: The Sense LED will blink when the sensor gets a valid
touch.
Comm LED
(Not visible
with back
cover on)
LCD
Display
Override
LED
Alarm LED: The Alarm LED will blink when there is an alarm from
the Controller.
SHLD
-COM
GND
+12Vdc
Display
Override
Override
Button
Remote Thermistor
Sensor Connector
Down
Button
Cover Set
Screw
Back View
Front View
Figure 3: E-BUS Digital Room Sensor Components
4
E-BUS Digital Room Sensor Technical Guide
MOUNTING AND WIRING
Dimensions and Mounting
Environmental Requirements
Mounting
The E-BUS Digital Room Sensor needs to be installed in an environment
that does not exceed a temperature greater than 150°F or less than -30°F
and does not exceed 90% relative humidity levels (non-condensing).
CAUTION: Do not touch the front face of the sensor while you
are plugging in the modular sensor cable. Touching the front face
of the sensor while plugging in the cable may prevent proper initialization and keep the buttons on the sensor from working properly.
Indoor Reading Range
The E-BUS Digital Room Sensor’s Indoor Reading Range is 40°F to
120°F and 0-100% RH (RH is available on the OE217-03 & OE217-04
models). Its temperature reading accuracy is +/- .5°F, and its RH reading accuracy is +/-2%. Its sensor element is the integral communicating
digital sensing device or external Type III Thermistor 10K Ohm @ 77°F.
The E-BUS Digital Room Sensor is designed to be mounted to a vertical
2” x 4” electrical box recessed in the wall. If the wall cannot be penetrated, a plastic surface mount box such as those made by WiremoldTM
may be used to mount the sensor to the wall surface. The Sensor should
be mounted at least 5 feet above the floor.
Outdoor Reading Range
The Sensor is mounted by removing the front cover and fastening the
housing base to the electrical box using the supplied (2) 6/32” x 1” machine
screws. The modular cable is then plugged into the phone jack located on
the circuit board that is mounted on the cover. The cover is then placed
onto the housing base, and the Allen Screw on the bottom of the base is
adjusted to hold the cover in place. A locking screw secures the sensor
to the wall. See Figure 4 for E-BUS Digital Room Sensor dimensions.
If your E-BUS Digital Room Sensor is set up to read an Outdoor Air
Temperature Sensor, any outdoor air temperature below -40°F will not
appear on the E-BUS Digital Room Sensor’s display.
Important Wiring Considerations
Optional Mounting Plate
The E-BUS Digital Room Sensors connect to the VCB-X or VCC-X
Controller using various lengths of EBC E-BUS cable connected between
the controller and the sensor. The EBC E-BUS cables should not run
in conduit with other AC line voltage wiring or with any conductors
carrying highly inductive loads. See Figure 18, page 12 for wiring.
Included with the Digital Room Sensor is a mounting plate that
can be used, if necessary, to cover the sensor sheet rock opening.
This mounting plate screws onto the back of the housing base.
The mounting plate is then mounted and covers the recessed space
in the wall. A locking screw secures the sensor to the wall. See
Figure 21, page 15 for dimensions.
1.00
2.80
MICROCHIP
PIC24HJ
256GP206
0.81
0.69
ALARM
4.55”
OVERRIDE
1.87
SHLD
Display
-COM
GND
+12Vdc
Override
Remote Thermistor
Sensor Connector
0.49
1.81
Front View
Side View
Back View
Figure 4: E-BUS Digital Room Sensor Dimensions
E-BUS Digital Room Sensor Technical
5
SENSOR SCREENS
LCD Display Screens
Outside Air Temperature Humidity
Status Screen
Main Sensor Display Screens
There are 3 Main Sensor Display Screens. The first screen displays the
Current Room Temperature, Operation Mode, Slide Offset, and RH (RH
is available on the OE217-03 Model). The second screen displays the
Outside Air Temperature and/or Humidity if Outdoor Air Temperature
and/or Outdoor Air Humidity is being monitored. The third screen
displays the unit information for the controller that the Digital Room
Sensor is connected to.
Figure 6: Outdoor Status
Screen
Temperature and Humidity Status
Screen
The Main Display Screen displays the current room temperature, the humidity in the
room (RH is available on the
OE217-03 Model), the current
setting of the slide offset, and
an icon for the current mode of
operation once the controller it is
connected to is done calibrating.
Figure 5: Main Display
Screen
The different icons shown are a
Snowflake for cooling mode, a
Flame for heating mode, a Fan in
motion for vent mode, and a Moon for unoccupied mode. When the unit
is in unoccupied mode, the screen’s background will turn dark. Refer to
Figure 9, page 7 for operation mode screen examples.
6
If the connected controller is
receiving an outdoor air temperature and/or humidity broadcast,
touching <Display> will first
bring up the Outdoor Status
Screen.
Unit Information Screen
Touching <Display> again will
bring up the Unit Information
Screen which contains the controller’s address or ID number,
screen ID, and software version
of the controller connected to
the sensor.
Figure 7: Unit
Information Screen
E-BUS Digital Room Sensor Technical Guide
SENSOR SCREENS
LCD Display Screens
Setpoint Adjust Screen
Touching <> or <> will display the Setpoint Adjust Screen.
You can adjust the cooling and
heating setpoints from this screen
based on the VCB-X or VCC-X
Controller slide offset setpoint.
For example, if the connected
controller’s Max Slide Offset
Figure 8: Setpoint Adjust Setpoint is set for five, you can
adjust the setpoint up five degrees
Screen
and down five degrees.
Operation Modes
Refer to Figure 9 for operation mode screen examples. The different
icons shown are a Snowflake for cooling mode, a Flame for heating
mode, a Fan in motion for vent mode, and a Moon for unoccupied
mode. When the unit is in unoccupied mode, the screen’s background
will turn dark.
Cooling Mode
with Snowflake Icon
NOTE: If the VCB-X or VCC-X Controller’s slide offset setpoint
is set to Zero, this screen will not appear when you touch
<> or <>.
Heating Mode
with Flame Icon
Vent Mode
with Fan in Motion Icon
Unoccupied Mode
with Moon Icon
Figure 9: Operation Mode Screens
E-BUS Digital Room Sensor Technical
7
TROUBLESHOOTING
Troubleshooting
Measuring Digital Sensor Resistance
D7
R33
1000
1002
R3
COMM
1001
TB1
D6
C1
MICROCHIP
PIC32MX440F
512H-80IPT
+COMM
SHLD
-COM
10RO
GND
+12Vdc
C14
R18
1330
R38
1002
C8
1002
15pF
3162
6.8uF
C31
L1
U4
C18
6.8uH
LTC3502
X05
R9
U3
R10
.1uF
10uF
C20
4751
R19
R20
4751
4751
X05
U6
4751
F3
D1
X1
C12
.1uF
C17
1001
C19
R37
R6
R8
6.8uF
X2
D5 R35
R2
RS1G
9.21Mhz
TB2
R5
1
C30
R36
.1uF
ADM3483
DISP1
C25
R1
4751
PROGRAM
.1uF
P1
R14
U2
.1uF
1001
6.8uF
C23
C3
R17
D4
4751
J1
MADE IN USA
10RO
R16
D2
R7
WattMaster Controls, Inc
ModBus LCD Space Sensor
YS102370 R1
C26 C13
C15
24F
C1025
C24
.1uF
1502
+
C27
.1uF
4751
EXTERN
THERM
LED1
1001
R32
.1uF
R4
470pF
R13
R12
C16
R15
+
-
J3
Q2
R11
C21
TH1
J2
E-BUS Cable
Disconnected
From Sensor
2.2uF
9302
.1uF
T
E-BUS Digital Room Sensor
Back View
NOTE: For This Test, The Sensor Must Be Disconnected From Its E-BUS Cable
As Shown. The Meter Must Be Set To Measure Resistance In Ohms. Use Table 1
To Determine If The Sensor Is Reading The Correct Resistance Value For The
Ambient Temperature. This Resistance Value Should Match The Temperature
Value Listed Next To The Resistance Value In The Table. The Temperature Should
Be Measured With A Separate Accurate Temperature Measuring Device Located
In The Area Where The Sensor Is Currently Located.
Figure 10: Temperature/Resistance Testing
8
E-BUS Digital Room Sensor Technical Guide
TROUBLESHOOTING
Temperature/Resistance Chart
Temperature – Resistance –for Type III 10K
Ohm Thermistor Sensors
Temperature – Resistance – for Type III 10K
Ohm Thermistor Sensors
Temp
(ºF)
Resistance
(Ohms)
Temp
(ºF)
Resistance
(Ohms)
-10
93333
71
11379
-5
80531
72
11136
0
69822
73
10878
5
60552
74
10625
10
52500
75
10398
15
45902
76
10158
20
40147
78
9711
25
35165
80
9302
30
30805
82
8893
35
27140
84
8514
40
23874
86
8153
45
21094
88
7805
50
18655
90
7472
52
17799
95
6716
54
16956
100
6047
56
16164
105
5453
58
15385
110
4923
60
14681
115
4449
62
14014
120
4030
64
13382
125
3656
66
12758
130
3317
68
12191
135
3015
69
11906
140
2743
70
11652
145
2502
150
2288
Table 1: Temperature/Resistance for Type III 10K Ohm Thermistor Sensors
E-BUS Digital Room Sensor Technical
9
APPENDIX
Sensor Configuration and Test Screens
Sensor Configuration and Test
Screens
Pixel Test Screen
To access the Sensor Configuration & Test Screens, you first need to
access the Unit Information Screen by touching <Display> while at
the Main Display Screen.
NOTE: While in the Sensor Configuration & Test Screens, the
<Display> button functions as an exit key to return to the
previous screen or menu. After a few seconds, however,
the sensor will automatically revert to the Main Display
Screen. Refer to Figure 11 when reading the instructions
that follow.
Figure 13: Sensor Info &
LED Test Screen
To select the first option—
Pixels—touch <> while at
the Sensor Configuration &
Test Screen (Figure 12). The
Pixel Test Screen tests the pixels
of the LCD display, allowing
you to make the screen white
with black characters, black
with white characters, or a
black or white screen. To exit
this screen, touch <Display>.
Sensor Info & LED Test Screen
Figure 14: Sensor Info &
LED Test Screen
Figure 11: E-BUS Digital Room Sensor Buttons
To select the second option—
Info & LEDS—touch < >
while at the Sensor Configuration & Test Screen (Figure 12).
The Sensor Info & LED Test
Screen shows the version of
software that the sensor is running and allows you to test the
LEDs that are used on the controller. Touching <> will turn
the LEDs on and touching <>
will turn the LEDs off. To exit
this screen, touch <Display>.
Sensor Configuration & Test Screen
Figure 12: Sensor
Configuration & Test
Screen
10
While the Unit Information
Screen is being displayed, you
can enter the Sensor Configuration & Test Screen options by
touching simultaneously below
the <Display> and <Override> buttons. (See Figure 11
which shows where to touch to
access this option.)
E-BUS Digital Room Sensor Technical Guide
APPENDIX
Sensor Configuration and Test Screens
LCD Backlight Test Screens
Figure 15: Backlight Test
& Configuration Screen
Address Screen
To select the third option—
BACKLT—touch <Override>
while at the Sensor Configuration
& Test Screen (Figure 12). This
option allows you to control
when the LCD backlight turns
on and off. You can configure the
backlight to stay on at all times,
remain off at all times, or to come
on when any button is touched on
the sensor.
SENSOR
COMM
ADDRESS
1
Figure 17: Address
Screen
To access the Address Screen,
while at the Thermistor Averaging Screen, (Figure 16), touch the
<Override> button.
This option allows you to set the
address—from 1-10. Touch <>
to increase the number and touch
<> to decrease the number.
The default is 1.
To exit this screen, touch
To exit this screen, touch <Display>.
<Display>.
Thermistor Averaging Screen
To select the fourth and final option—THRM AVG—, while at
the Sensor Configuration & Test
Screen (Figure 12), touch simultaneously below the <Display>
and <Override> buttons. (See
Figure 10 which shows where to
touch to access this option.)
Figure 16: Temperature
Averaging Screen
This option allows you to set the
rate—from 1-15 seconds—at
which the sensor takes a new
temperature reading. Touch <>
to increase the number of seconds
and touch <> to decrease the
number of seconds.
To exit this screen, touch <Dis-
play>.
NOTE: The sensor takes the average of the last 10 readings based
on the number that is entered in this screen. For example,
if you want a 3-second sample, the sensor will take the
average of the last 10 readings every 3 seconds over a
30-second span. Therefore, if you have your sensor next
to an outside doorway, you would want to enter a higher
number for your sample to give a more accurate reading for the room temperature in case the outside door is
opened often.
E-BUS Digital Room Sensor Technical
11
APPENDIX
E-BUS Digital Room Sensor to HVAC Controller Wiring
E-BUS Digital Room Sensor
The OE217-02, OE217-03, or OE217-04 E-BUS Digital Room Sensor
connects to the VCB-X or VCC-X Controller with the EBC E-BUS
expansion cable.
The Digital Room Sensor should be mounted at approximately 5 Ft.
above the floor on the wall in an area that does not have drafts or is
exposed to direct sunlight. See Figure 18 for wiring details.
VCB-X Controller
AO2 =
AO3 = SC
TRIAC OUTPUT
TR1 = DIGITAL CO
NOTE: When Only The E-BUS
Digital Room Sensor Is Used, It
Connects Directly To The VCB-X
Controller Using An EBC E-BUS
Cable Of The Appropriate Length.
Mount At Least 5 Feet Above Floor.
See Figure 19 on page 13 For
Connection When A Wall-Mounted
E-BUS CO2 Sensor
Is Also Used.
WattMaster Label
#LB102093-01-A
Rev.: 1C
ALARM
Display
Override
E-BUS Digital Room Sensor
M
SAT FAIL
OAT FAIL
SPC FAIL
MECH COOL FAIL
MECH HEAT FAIL
FAN PROOF FAIL
DIRTY FILTER
EMERGENCY SHUTDOWN
24 VAC POWER
ONLY
WARNING!
POLARITY MUST
BE OBSERVED
OR THE
CONTROLLER
WILL BE
DAMAGED
24 VAC
INPUT
OVERRIDE
LED N
NORMAL
LOW SAT
HIGH SAT
1
2
CONT. TEMP COOL FAIL
3
CONT. TEMP HEAT FAIL
4
4
PUSH BUTTON OVR
1
5
OUTPUT FORCE ACTIVE
0
E-BUS
EXPANSION
6
E-BUS
EXPANSION
EBC E-BUS
Cable
Figure 18: OE217-02, OE217-03 & OE217-04 – E-BUS Digital Room Sensor Wiring
12
Revised 05/01/12
E-BUS Digital Room Sensor Technical Guide
APPENDIX
Wall Mounted E-BUS CO2 Sensor Wiring
E-BUS CO2 Wall Mounted Sensor
The OE256-05 Wall Mounted E-BUS CO2 Sensor is used to monitor CO2
levels in the space served by the HVAC unit. The CO2 Sensor connects
to the VCB-X Controller with an EBC E-BUS cable. It can be daisychained with the E-BUS Digital Room Sensor (OE217-02, OE217-03,
OE217-04) for applications requiring both a room CO2 sensor and room
temperature sensor.
It should be mounted at approximately 5 Ft. above the floor on the wall
in an area that does not have drafts or is exposed to direct sunlight. See
Figure 19 for wiring details and installation notes.
NOTE: The OE265-07 Duct Mounted E-BUS CO2 Sensor can
be used if desired instead of the Wall Mounted E-BUS
CO2 Sensor. However, the E-BUS Digital Room Sensor
does not directly connect to the Duct Mounted E-BUS
CO2 Sensor. See the OE265-07 E-BUS CO2 Sensor
Technical Guide for Duct Mounted E-BUS CO2 Sensor
wiring details.
VCB-X Controller
AO2 =
AO3 = SC
TRIAC OUTPUT
TR1 = DIGITAL CO
Wall-Mounted
E-BUS CO2 Sensor
WattMaster Label
#LB102093-01-A
Rev.: 1C
LED N
NORMAL
M
SAT FAIL
OAT FAIL
SPC FAIL
MECH COOL FAIL
MECH HEAT FAIL
FAN PROOF FAIL
DIRTY FILTER
NOTE: Mount
Both Sensors At
Least 5 Feet Above
Floor. The Digital
Room Sensor
Connects To The
CO2 Sensor.
EMERGENCY SHUTDOWN
24 VAC POWER
ONLY
WARNING!
POLARITY MUST
BE OBSERVED
OR THE
CONTROLLER
WILL BE
DAMAGED
24 VAC
INPUT
OVERRIDE
ALARM
Display
Override
LOW SAT
HIGH SAT
1
2
CONT. TEMP COOL FAIL
3
CONT. TEMP HEAT FAIL
4
4
PUSH BUTTON OVR
1
5
OUTPUT FORCE ACTIVE
0
E-BUS
EXPANSION
6
E-BUS
EXPANSION
EBC E-BUS Cable
EBC E-BUS Cable
E-BUS Digital Room Sensor
Figure 19: OE256-05 – Wall Mounted E-BUS CO2 Sensor Wiring
E-BUS Digital Room Sensor Technical
Revised 05/01/12
13
APPENDIX
Connecting a Remote Sensor
Connecting a Remote Sensor
If the job requires this Sensor to be mounted outside of a conditioned
space, a remote WattMaster OE210 Space Sensor or OE231 Return
Air Temperature Sensor (or any 2-wire 10K Ohm, Type III thermistor
temperature sensor) can be hard-wired to the E-BUS Digital Room Sensor. Other versions of the WattMaster space sensors (OE211, OE212,
or OE213) with slide adjust and/or override button should not be used
as the remote sensor.
sensor will read the remote temperature input. Be sure to cut the ends
of the wire close to the circuit board so that the sensor loop wire ends
won’t short between each other. The remote sensor then wires to the
remote sensor terminal block on the back of the Digital Room Sensor.
If using the WattMaster OE210 type Space Sensor as the remote sensor, you must clip off the C1 capacitor from the back of the OE210. Be
sure to cycle power to begin reading the remote sensor. See Figure 21.
Contact WattMaster Controls for wiring information if a four sensor
averaging array will be used as the “remote sensor”.
OE217-03 & OE217-04 E-BUS Digital Room Temperature and Humidity Sensor
See Figure 20 for OE231 Return Air Temperature Sensor wiring. See
Figure 21 for OE210 Space Sensor wiring.
Disconnect the modular cable from the Digital Room Sensor before
performing the following modifications.
OE217-02 - E-BUS Digital Room Temperature Only
Sensor
Disconnect the modular cable from the E-BUS Digital Room Sensor
before performing the following modifications.
If using the OE217-02 Temperature Only version of the sensor, you must
first remove the Digital Sensor’s back cover. You will see a loop of wire
hanging off of the sensor circuit board. See Figure 22. This is the external
thermistor loop wire. Clip the external thermistor loop wire so that the
If using the OE217-03 and OE217-04 Temperature and Humidity versions of the Digital Room Sensor, you only need to wire the remote sensor
to the remote sensor terminal block on the digital sensor. DO NOT CLIP
OFF OR REMOVE the temperature/humidity sensor element on the
Digital Sensor. See Figure 23. When the remote temperature sensor is
wired in, it will override the on-board temperature value of the OE217-03
or OE217-04 sensor, even though the sensor element remains attached.
If using the WattMaster OE210 type Space Sensor as the remote sensor, you must clip off the C1 capacitor from the back of the OE210. Be
sure to cycle power to begin reading the remote sensor. See Figure 21.
Mount Sensor In Return Air
Duct As Shown. Route Wires
To Digital Room Sensor
Location And Connect To
Terminal Block.
MICROCHIP
PIC24HJ
256GP206
OE231 Return Air
Temperature Sensor
Return
Air Duct
SHLD
-COM
GND
+12Vdc
OE217-02, OE217-03 & OE217-04
E-BUS Digital Room Sensor
Back View
Sensor Shown With
Back Cover Removed
Figure 20: OE231 Return Air Temperature Sensor Wiring
14
E-BUS Digital Room Sensor Technical Guide
APPENDIX
Connecting a Remote Sensor
MICROCHIP
PIC24HJ
256GP206
TMP
GND
AUX
OUT
SHLD
-COM
GND
+12Vdc
Remove
C1 Capacitor
OE217-02, OE217-03 & OE217-04
E-BUS Digital Room Sensor
Back View
OE210 Space
Temperature Sensor
Back View
Sensor Shown With
Back Cover Removed
Figure 21: Attaching the OE210 Space Room Sensor
E-BUS Digital Room Sensor Technical
15
APPENDIX
Connecting a Remote Sensor
MICROCHIP
PIC24HJ
256GP206
SHLD
-COM
GND
+12Vdc
Cut Wire Loop As Shown.
Make Sure That The Wires
Are Cut Close Enough To
The Circuit Board So They
Can’t Touch Each Other.
OE217-02 E-BUS Digital Room
Temperature Sensor Only
Back View
Sensor Shown With
Back Cover Removed
Figure 22: Wire Clipping Instructions For OE217-02 - Digital Room Temperature Only Sensor
WARNING: DO NOT CLIP OFF OR REMOVE THE
TEMPERATURE & HUMIDITY SENSING ELEMENT
MICROCHIP
PIC24HJ
256GP206
SHLD
-COM
GND
+12Vdc
Sensing Element
OE217-03 & OE217-04 E-BUS Digital Room
Temperature & Humidity Sensor
Back View
Sensor Shown With
Back Cover Removed
Figure 23: Instructions For OE217-03 & OE217-04 - Digital Room Temperature & Humidity Sensor
16
E-BUS Digital Room Sensor Technical Guide
APPENDIX
Mounting Plate Dimensions
Optional Mounting Plate
Included with the Digital Room Sensor is a mounting plate that
can be used, if necessary, to cover the sensor sheet rock opening.
This mounting plate screws onto the back of the housing base.
The mounting plate is then mounted and covers the recessed space
in the wall. A locking screw secures the sensor to the wall. See
Figure 24, below for dimensions.
3.275
1.638
1.810
0.733
0.810
5.037
4.153
3.766
2.920
3.278
2.110
1.842
1.407
0.882
R0.220
0.060
0.160
Figure 24: BK000081 Mounting Plate Dimensions
E-BUS Digital Room Sensor Technical
17
NOTES
18
E-BUS Digital Room Sensor Technical Guide
NOTES
E-BUS Digital Room Sensor Technical
19
Form: OR-EBUS-DRS-TGD-01H
Printed in the USA
January 2016
All rights reserved.
Copyright 2016
WattMaster Controls Inc.  8500 NW River Park Drive  Parkville, MO  64152
Phone: 866-918-1100
www.orioncontrols.com
Fax (816) 505-1101
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