Daikin McQuay 910121754 Instruction Manual

Installation & Maintenance Data
Group: WSHP/FCU
Part Number: 910140464
Date: January 2013
IM 1171-3
©2013 McQuay International • 800.432.1342 • www.mcquay.com
DigitallyAdjustable Display Sensor
Used With:
Water Source Heat Pumps (WSHP) - Sensor Part No. 910121754
SmartSource™Units - Models GS & GT
Enfinity™ Units with MicroTech®III Controls - Models CCH, CCW; VFC, VFW; LVC, LVW;
MHC, MHW & VHC, VHF
Fan Coil Units (FCU) - Sensor Part No. 910113679
Models With MicroTech III Controls

Page 2 of 16 / IM 1171-3
Contents
Overview...............................................................................3
Applications.........................................................................4
Sensor Functions................................................................5
910113679, Fan Coil Unit Model: .....................................5
910121754, Water Source Heat Pump Model: .................5
Sensor Dimensions.............................................................5
Terminations ........................................................................6
Mounting ..............................................................................7
Location ............................................................................7
Junction Box, (J-Box)........................................................7
Drywall Mounting ..............................................................7
Maintenance.........................................................................7
Terminal Descriptions.........................................................7
Initial Start-Up Occupied Sequence: .................................8
Power Fail Start-Up Occupied Sequence:.........................8
Display Descriptions...........................................................8
Numerical Display .............................................................8
Adjusting The Setpoint (Temperature or Humidity) ...........8
Occupied Icon Indicator: ...................................................8
The Word "Override" On The Display: ..............................8
Fan Status & Speed Indicators: ........................................9
System Mode “Heat/Cool/Auto/Off/Dhum”Indicators: ......9
Alarm Word On The Display: ............................................9
E-Save Word On The Display: ..........................................9
Setpoint Word On The Display: ........................................9
Status Word & Dot On The Display: .................................9
Front Panel Button Operation..........................................10
System Mode Indication (FCU Only)................................10
“Heat/Cool/Auto/Off” .......................................................10
Fan Speed Indication (FCU Only).....................................10
“Auto/High/Medium/Low” ................................................10
System Mode Indication (WSHP Only)............................10
“Heat/Cool/Auto/Off/Dhum”.............................................10
Fan Indication (WSHP Only).............................................10
“Auto/On” ........................................................................10
Override/Reset Button (Timed ...........................................
Override & Alarm Reset): ................................................10
Occupied Button (Occupied/ .............................................
Unoccupied Request): ...................................................10
Up & Down Setpoint Buttons .............................................
(Temp Or Humidity): ....................................................... 11
System Mode Button (FCU Has Heat/Cool/Auto/Off) Or
(WSHP Has Heat/Cool/Auto/Off/Dhum): ........................11
Fan Mode Button (FCU Has Auto/.....................................
High/Medium/Low/Off) (WSHP Has ..................................
Auto/On):........................................................................11
Optional Technician Adjustments....................................11
Set-Up Jumper (J50) Conguration: (Factory Set Per
Order) .............................................................................11
Label Description Setting ................................................11
Program Mode Menu Pages: (Display Required) ........... 11
Entering Program Mode And Making Changes: ............. 11
Program Mode Menu Pages: ..........................................11
Diagnostics........................................................................14
Problem & Possible Solution ..........................................14
Specications ....................................................................15
Supply Voltage: ...............................................................15
Sensor: ...........................................................................15
Outputs: ..........................................................................15
Sensor Controls: .............................................................15
Field Setup Jumper J50: .................................................15
Display: ...........................................................................15
Field Conguration Menu: ..............................................15
Enclosure Material: .........................................................15
Ambient:..........................................................................15
Agency: ...........................................................................15

IM 1171-3 / Page 3 of 16
Overview
The display sensor is used in conjunction with the MicroTech
III equipped units as described in the Application Section
below. The same sensor is used for Water Source Heat Pump
(WSHP) and for Fan Coil Units (FCU) with just a hardware
jumper and menu change during conguration. The sensor
has a digital display for Temperature, Humidity, Occupancy,
Fan Speed, System Mode, Alarm, Setpoint and Status indica-
tion. Controls include six buttons for Setpoint, System Mode,
Fan Speed, Occupied/Unoccupied Request, and Override
Reset. (Figure 1).
Figure 1: Digital display sensor - P/N 910121754, Fan Coil
P/N 910113679
Setpoint-Down
System Mode
Fan Speed
Occupied/Unoccupied Request
Override Reset
Setpoint-Up

Page 4 of 16 / IM 1171-3
Applications
The display sensor can be used on the products shown in Table 1.
Table 1: Product usage guide
Units Product Models Controls Used with Digitally Adjustable Sensor
with Temperature and Humidity Display
Water Source
Heat Pumps
Horizonal
Ennity™
W. CCH, CCW
MicroTech III
Unit Controller Yes
Vertical W. VFC, VFW
Vertical Stacked W. VHC
Console W. MHC, MHW
Horizontal &
Vertical SmartSource 1-Stage W. GSH, GSV MicroTech III SmartSource Unit Controller
SmartSource 2-Stage W. GTH, GTV
Vertical SmartSource Inverter W. DFW Daikin McQuay Inverter
Controller No
Fan Coils Horizontal ThinLine™FC.H, FH.H MicroTech III Unit Controller Yes
The display sensor for water source heat pump applications is shown in Table 2.
Table 2: Water source heat pump application guide
Units Product Models
Applications
Cool-
ing Heat- ing Dehumidication Electric Heat
Water-
side
Econo-
mizer
Stages
Smart
Dehu-
midi-
cation
Hot Gas
Reheat Simpli- ed
Hu-
midistat
Con-
trolled
Dehu-
midi-
cation
Only
Boil-
erless Supple- mental Primary 3-Way
Valve
Control
Water
Source
Heat
Pumps
Hori-
zontal
Ennity
W. CCH,
CCW 1 1 No No No No No No No No No
Vertical W. VFC,
VFW 1 1 No Yes No No No Yes1Yes1No No
Vertical
Stacked W. VHC 1 1 No No No No No No No No No
Console W. MHC,
MHW 1 1 No No No No No Yes1Yes1No No
Hori-
zontal &
Vertical
Smart-
Source
1-Stage
W GSH,
GSV 34Yes Yes Yes Yes Yes Yes Yes Yes Yes
Hori-
zontal &
Vertical
Smart-
Source
2-Stage
W. GTH,
GTV 34Yes Yes Yes Yes Yes Yes Yes Yes Yes
Vertical Smart- Source
Inverter W. DFW NA NA No No No No No No No No No
Note: 1With optional Boilerless controls

IM 1171-3 / Page 5 of 16
Sensor Functions
910113679, Fan Coil Unit Model:
• Display sensor to show room temperature, fan speed
(Auto/High/Medium/Low), system mode (Heat/Cool/
Auto/Off), alarm, override and occupancy.
910121754, Water Source Heat Pump Model:
• Display sensor to show room temperature, room humidity,
fan speed (Auto/On), system mode (Heat/Cool/Auto/Off/
Dhum), alarm, override and occupancy.
• De-humidication output contact has an adjustable
setpoint and congurable deadband. This output operates
automatically using the RH setpoint and deadband in the
system “Auto” mode or in the “Dhum” mode.
Sensor Dimensions
Figure 2: Sensor dimensions
2.784
4.500
1.125
Termination
Daikin McQuay recommends using a twisted shielded pair of
at least 22AWG for the power wire connections. The shield
should be earth grounded only at the power source. Larger
gauge wire may be required for long runs.
CAUTION
Combination of power wiring (R, 5, DH) and analog (1, 2, 3, 4,
and 6 to ground) wiring in a common cable may cause signal
interference and must be avoided.
All wiring must comply with the National Electric Code
(NEC) and local codes. Do NOT run any of this device’s wir-
ing in the same conduit as other AC power wiring. Tests show
that uctuating and inaccurate signal levels are possible when
AC power wiring is present in the same conduit as the signal
lines. If you are experiencing any of these difculties, please
contact your Daikin McQuay representative
Figure 3: Daikin McQuay sensor circuit board

Page 6 of 16 / IM 1171-3
Terminations
Figure 4: SmartSource MicroTech III board to digital room temperature sensor wiring
SmartSource Board MicroTech III Board I/O Expan-
sion Module
Base Board
Terminal Block Label TB2-1 TB1-1 TB1-2 TB1-3 TB1-4 TB1-5 TB3-1 TB3-2 TB1-1
Description
24VAC
Unit Status
Output
Fan & Unit
Mode
Setpoint Adjust
Room Temp
Sensor & Tenant
Override
DC Signal
Common
Emergency
Shutdown Input
Unoccupied
Input
Dehumidication
Input
Terminal Label R 1 2 3 4 5 E U 1
Typical Wiring
Terminal Label R (24VAC) 1 (ST) 2 (FM) 3 (SP) 4 (UTS) 5 (GND) 6 (FC) E U DH
Description
24VAC
Unit Status Output
Fan & Unit Mode
Setpoint Adjust
Room Temp
Sensor & Tenant
Override
DC Signal
Common
Fan Speed Select
- Fan Coil Version
Only
Emergency Shut-
down
Unoccupied
Dehumidication
Sensor Digitally Adjustable Room Temperature Sensor (Part No. 910121754)
Figure 5: Fan-Coil MicroTech III board to digital room temperature sensor wiring
SmartSource Board MicroTech III Board
Base Board
Terminal Block Label TB2-2 TB1-5 TB1-4 TB1-3 TB1-2 TB1-1 TB1-6 TB2-1
Description
24VAC
Unit Status
Output
Unit Mode
Fan Mode
Setpoint Adjust
Room Temp
Sensor & Tenant
Override
DC Signal
Common
Unoccupied
Terminal Label 24 VAC BO9 AI7 AI4 AI3 AI1 COM BI2
Typical Wiring
Terminal Label R (24VAC) 1 (ST) 2 (FM) 6 (FC) 3 (SP) 4 (UTS) 5 (GND) U
Description
24VAC
Unit Status Output
Fan & Unit Mode
Fan Speed Select
- Fan Coil Version
Only
Setpoint Adjust
Room Temp
Sensor & Tenant
Override
DC Signal
Common
Unoccupied
Sensor Digitally Adjustable Room Temperature Sensor (Part No. 910113679)

IM 1171-3 / Page 7 of 16
Mounting
Location
Avoid mounting on outside walls or in direct sunlight.
Junction Box, (J-Box)
1. Pull the wire through the wall and out of the junction box,
leaving about six inches free.
2. Pull the wire through the hole in the base plate.
3. Secure the back plate to the box using the #6-32 × 1/2
inch mounting screws provided.
4. Screw the plate rmly to the wall so the foam plate
backing is compressed about 50%.
5. Terminate the unit according to the guidelines in the
Termination section.
6. Attach Cover by latching it to the top of the base, rotating
it down and snapping into place.
7. Secure the cover by backing out the lock-down screws
using a 1/16" Allen wrench until it is ush with the bottom
of the cover.
Figure 6: Junction box mounting (hardware is provided
for both junction box and drywall installation.)
Cover lockdown screws 1/16"allen
Mounting
base plate
Drywall Mounting
1. Place the base plate against the wall where you want to
mount the sensor.
2. Mark out the two mounting holes where the unit will be
attached to the wall. Drill a 3/16" hole in the center of
each mounting hole and insert a drywall anchor into the
holes.
3. Drill one 1/2" hole in the middle of the marked wiring
through hole area.
4. Pull the wire through the wall and out the 1/2" hole,
leaving about six inches free.
5. Pull the wire through the hole in the base plate.
6. Secure the base to the drywall anchors using the #6 × 1"
mounting screws provided.
7. Screw the plate rmly to the wall so the foam plate
backing is compressed about 50%.
8. Terminate the unit according to the guidelines in the
Termination section.
9. Attach cover by latching it to the top of the base, rotating
it down and snapping it into place.
10. Secure the cover by backing out the lock-down screws
using a 1/16" Allen wrench until it is ush with the sides
of the cover
Note: in any wall-mount application, the wall temperature
and the temperature of the air within the wall cavity
can cause erroneous readings.
The mixing of room air and air from within the wall
cavity can lead to condensation, erroneous readings
and sensor failure. To prevent these conditions, Daikin
McQuay recommends sealing the conduit leading to
the junction box with berglass.
Maintenance
Wipe the display as needed with a damp water only cotton
cloth. Do not use any type of cleaner as it may damage the
buttons or scratch the display. Do not paint.
Terminal Descriptions
R...........15 to 28VAC* (AC requires separate shielded wire)
(Shield terminated at power source only)
DH........Dehumidication Contact (Triac from R to DH
@170mA, WHSP Only).
U...........Unoccupied Contact. (Terminal grounded when in
Unoccupied, VDC only).
E...........System “Off” Indication. (Terminal grounded when
in System “Off” mode, VDC only).
1............Status Indicator Input from the MicoTech III Smart-
Source Unit Controller. (5VDC).
2............Output Signal, and Fan Mode System (0 to 5VDC).
Output Signal, System Mode Select for FCU only, (0
to 5VDC).
3............Output Signal, Setpoint Adjust from 55º to 95˚F (de-
fault) or ±5º Congurable. (0 to 5VDC) See Setpoint
Analog Range Tolerances. See Table 3.
4............Output Signal, Room Temp Thermistor Sensor. (10K
ATP Z curve, 10K-2).
5............Ground or Neutral* (AC requires separate shielded
wire). Common Reference for All Signal Terminals.
6............Output Signal, Fan Speed Select for FCU only. (0 to
5VDC). Terminal 6 not used for WSHP units.
Note: * The AC power wiring at terminals [R] & [5] should
be run in a separate twisted shielded pair to avoid
possible uctuating and inaccurate signal levels
induced into the other sensor signal wires.
This sensor AC power can be run in the same conduit
with the sensor signal wire as long as it’s run in
twisted, shielded pair and terminated properly.

Page 8 of 16 / IM 1171-3
Setpoint Analog Range Tolerance
Table 3: Setpoint analog range tolerance
Setpoint Analog Tolerance
55°to 95°F Scale -5°to +5°F Scale Terminal 3 Analog Output
@ 55°F (min.) @ -5°F (min.) 0.0 to 0.10 vdc
@65°F@-2.5°F1.3 to 1.42 vdc
@75°F @0°F2.12 to 2.2 vdc
@85°F@+2.5°F2.58 to 2.63 vdc
@95°F (max.) @+5°F (max.) 3.0 to 4.0 vdc
Sensor Error Sensor Error Full Scale ≈ 5 vdc
Initial Start-Up Occupied Sequence:
On initial installation power-up, the sensor is in “Occupied”
mode with a solid occupied icon and DC voltage at terminal
“U”. If the “STATUS/DOT” input on Terminal 1 from the
controller indicates occupied (“ON” continuous), then the
unit continues to stay “Occupied”. If the “STATUS/DOT”
input on Terminal 1 from the controller indicates unoccupied
(5 seconds “ON” then 5.5 seconds “OFF”), then the occupied
icon will ash the desired occupancy state every 8 seconds,
indicating to the user a mismatch of the desired occupied
status and system occupied status at the controller
Power Fail Start-Up Occupied
Sequence:
On a power failure, the sensor retains its last known desired
occupancy status in non-volatile memory. On restoration of
power, the sensor restores its last known desired occupancy
state from memory. The occupied icon will reect this with a
solid (occupied) or hollow (unoccupied) indication and ter-
minal “U” will have voltage applied (occupied) or grounded
(unoccupied). If the “STATUS/DOT” input on Terminal 1
from the controller matches this occupancy state then the oc-
cupied status icon will continue to be solid or hollow depend-
ing on the last known state. If the “STATUS/DOT” input on
Terminal 1 from the controller is different from the sensor
occupied state, then the occupied icon will ash the desired
occupancy state every 8 seconds indicating to the user a
mismatch of the desired occupied status and system occupied
status at the controller.
Display Descriptions
Numerical Display
The factory setting default numerical display (Figure 7)
shows current temperature (°F or °C) and toggles to humidity
and setpoint display every 5 seconds.
Figure 7: Sensor numerical display
Adjusting The Setpoint (Temperature or
Humidity)
Whichever is displayed at the time, temperature or humidity:
•Push the or button, the displayed setpoint can
be adjusted up or down.
• After an adjustment, the setpoint is displayed for 5 seconds.
During the setpoint display push (System Mode Button)
to switch between the temperature display or the humidity
display.
• Push the or button, the displayed setpoint
can be adjusted up or down. (See "Front Panel Button
Operation" on page 10 for details.)
The unit can also be programmed in the eld to “Setpoint
Only” display or Setpoint Lockout. See the "Optional Techni-
cian Adjustments" on page 11.
Occupied Icon Indicator:
The Occupied Icon on the left side of the display indicates
whether the room sensor is in the Occupied or Unoccupied
Mode, (Figure 8).
Figure 8: Occupied & unoccupied icons
= “Occupied”= “Unoccupied”
Solid is Occupied and Hollow is Unoccupied.
• A blinking icon every 8 seconds indicates an override
request that has not been fullled.
The Word "Override" On The Display:
The word “Override” indicator in the top left corner illu-
minates when the sensor is signalled by the “Status” input
(Terminal 1).
This is initiated from the Override/Reset Button at rst and
then conrmed from the “Status” input code which keeps the
“Override” indicator on.
Figure 9: Override word on the display

IM 1171-3 / Page 9 of 16
Display Descriptions
Fan Status & Speed Indicators:
The Fan Shape, 4 Wavy Lines and “Auto” word
indicate Fan and Speed status.
“Fan & No Wavy Lines” indicate the fan is Off.
“Fan & 2 Wavy Lines”indicate Low.
“Fan & 3 Wavy Lines”indicate Medium.
“Fan & 4 Wavy Lines”indicate High, and the
word “Auto” indicate fan Auto mode.
System Mode “Heat/Cool/Auto/Off/Dhum”
Indicators:
The “Heat/Cool/Auto/Off/Dhum” Mode Indicators on the
bottom of the display describe each of the sensor’s modes.
The mode is changed by pushing the System Mode button on
the sensor. (Dhum is only used on WSHP units.)
Alarm Word On The Display:
The “Alarm” word indicator on top illuminates when the
sensor interprets the “Status” input code from the controller
as an alarm. See Table 4 on page 9.
E-Save Word On The Display:
The “E-Save” word indicator on top illuminates when the
sensor interprets the “Status” input code from the controller
as Standby Mode (See Table 4 on page 9).
Setpoint Word On The Display:
The “Setpoint” word on top illuminates when the sensor is
displaying the setpoint on the numerical display (Tempera-
ture or Humidity). When this “Setpoint” indicator is off, the
numerical display shows the actual room temperature or
humidity.
Status Word & Dot On The Display:
The Status “Dot” on the display indicates the unit status or
alarm condition. It is turned “On” and “Off” by interpreting
the status input from the controller on terminal 1. See Figure
3 on page 5.
Table 4 shows the alternating conditions and sensor status.
Table 4: WSHP unit status input timing definition
Status Dot "ON"
(+ 5 vdc) time
Status Dot
"OFF" (0 vdc)
Time
WSHP
Availability Display Indication
0.5 seconds 0.5 seconds
Controller Off (or
Network
“Wink” operation
active)
“ALARM” On
0.0 seconds Continuous
Unit running in
Night
Setback Override
Mode or
no power to the
unit
“OVERRIDE” On
0.5 seconds 5.5 seconds Unoccupied
Mode Hollow Occupied Icon
5.5 seconds 0.5 seconds Standby Mode “E-SAVE” On
Continuous 0.0 seconds Occupied Mode Solid Occupied
Icon
Table 5: Fan Coil (FCU) unit status input timing definition
Status Dot "ON"
(+ 5 vdc) time
Status Dot
"OFF" (0 vdc)
Time
Fan Coil
Availability Display Indication
0.3 seconds 0.3 seconds Alarm Active “ALARM” On
0.0 seconds Continuous
Unit running in
Night
Setback Override
Mode or
no power to the
unit
“OVERRIDE” On
0.5 seconds 5.5 seconds Unoccupied
Mode Hollow Occupied Icon
5.5 seconds 0.5 seconds Standby Mode “E-SAVE” On
Continuous 0.0 seconds Occupied Mode Solid Occupied
Icon
3.0 seconds 3.0 seconds
Calibration
Mode/Network
Wink No Change

Page 10 of 16 / IM 1171-3
Front Panel Button Operation
System Mode Indication (FCU Only)
“Heat/Cool/Auto/Off”
The “Heat/Cool/Auto/Off” Mode Indicators on the bottom
of the display show the mode status of the sensor and are
changed by pushing the System Mode button.
• “Cool” on the display means the unit will only provide
cooling.
• “Heat” on the display means the unit will only provide
heating.
• “Auto” on the display means the unit switches
automatically to provide cooling or heating.
• “Off” on the display means the unit will not provide
cooling, heating or fan operation.
There should always be one indicator “On” unless the sensor
has no power or has a problem. The System ModeAnalog Out-
put voltage on Term. 2 will change based on the system mode.
Fan Speed Indication (FCU Only)
“Auto/High/Medium/Low”
The Fan Speed Indicators on the display show the fan speed
status (Auto/High/Medium/Low) and are changed by pushing
the Fan Mode button.
“Fan & 4 Wavy Lines & Auto” - the fan stages up
or down automatically depending on the demand
for cooling or heating.
“Fan & 4 Wavy Lines” - the fan runs continuously
at high speed regardless of the system mode setting
of Heat/Cool/Auto.
“Fan & 3 Wavy Lines” - the fan runs continuously
at medium speed regardless of the system mode
setting of Heat/Cool/Auto.
“Fan & 2 Wavy Lines” - the fan runs continuously
at low speed regardless of the system mode setting
of Heat/Cool/Auto.
“Fan & No Wavy Lines” - Indicates the fan is Off.
There should always be one indicator “On” unless the sensor
has no power or has a problem. The Fan SpeedAnalog Out-
put voltage on Terminal 6 will change based on the fan speed
selection.
System Mode Indication (WSHP Only)
“Heat/Cool/Auto/Off/Dhum”
The “Heat/Cool/Auto/Off/Dhum” Mode Indicators on the
display show the mode status of the sensor and are changed
by pushing the System Mode button.
• “Cool” on the display means unit will only provide
cooling.
• “Heat” on the display means the unit will only provide
heating.
• “Auto” on the display means the unit can switch
automatically to provide cooling or heating or
dehumidication.
• “Off” on the display means the unit will not provide
cooling, heating, dehumidication or fan operation (“E”
terminal goes Low).
• “Dhum” on the display means that only dehumidication
will operate.
There should always be one indicator “On” unless the sensor
has no power or has a problem. The System ModeAnalog
Output voltage on Terminal 2 will change based on the sys-
tem mode selection.
Fan Indication (WSHP Only)
“Auto/On”
The Fan Indicators on the left side of the display show the fan
status (Auto/On) of the sensor and are changed by pushing
the Fan Mode button.
“Fan & 4 Wavy Lines & Auto” - the fan runs on
a call for cooling, heating or Dhum. Otherwise the
fan is off.
“Fan & 4 Wavy Lines” - the fan is running
continuously regardless of the heating, cooling or
Dhum demand.
“Fan & No Wavy Lines” - the fan is Off when the
system mode is “Off”.
Override/Reset Button (Timed
Override & Alarm Reset):
When the “Override/Reset” Button is pressed, the thermis-
tor sensor is shorted. If held for more than 3 seconds but less
than 11 seconds, it puts the controller into a timed Occupied
Override (the time is set by the controller). If the unit is in
alarm, then holding the “Override/Reset” Button for more than
11 seconds will clear all alarms in the controller but only if the
cause of the alarm has already returned to its non-alarm condi-
tion. Some alarms will not reset from the digital room sensor.
In this case, power to the unit must be cycled off for 5 sec-
onds to clear the alarm. Continuously resetting alarms from
the room sensor could damage the controller. Please call a
service technician when repeated alarm resets are required to
keep the unit operational.
Occupied Button (Occupied/
Unoccupied Request):
Note: Terminal “U” opens HI to source power on power-up
“Occcupied”
When the “Occupancy” Button is pushed, the current “Oc-
cupied” or “Unoccupied” status of the sensor will be toggled
to the opposite condition for 20 seconds. Both the display and
“U” terminal output reect the new status during the 20
seconds. If a conrmation signal is received from the control-
ler into the Status Input terminal “1” within 20 seconds, then
the new occupancy condition remains; otherwise the “U” ter-
minal will return to the original state and the “Occupied” Icon
will ash the desired occupancy state every 8 seconds.

IM 1171-3 / Page 11 of 16
Front Panel Button Operation
Up & Down Setpoint Buttons
(Temp Or Humidity):
Press the Setpoint “Up/Down” Buttons once to enter the
Setpoint Adjustment Mode. View the display to see whether
the unit is in Temperature or Humidity Setpoint mode. If
needed, press the “System Mode” Button once to toggle to
the desired Setpoint. The current setpoint value will display
for 5 seconds. When the “Up/Down” Buttons are pressed in
this mode, the temperature or humidity setpoint will change
in one degree or percent (%) increments. It will only change
within the temperature setpoint range that was ordered (or the
setpoint range that was set via the Program Mode).
The humidity setpoint is always between 40% to 90%. After
5 seconds of no buttons being pushed, the sensor will go into
the standard display mode.
System Mode Button (FCU Has
Heat/Cool/Auto/Off) Or (WSHP Has
Heat/Cool/Auto/Off/Dhum):
When the “System” Button is pushed, the unit switches be-
tween system modes.
Fan Mode Button (FCU Has Auto/
High/Medium/Low/Off) (WSHP Has
Auto/On):
When the “Fan” Button is pushed, the fan speed changes in
order from one speed to another.
Optional Technician Adjustments
Note: The sensor setup is factory set per your order. Setup
adjustments are not required
The unit is shipped ready to install per the order and does
not require any special setup or programming. The following
Program Menu Changes are available if the installer decides
to change the factory settings. The Setpoint Up/Down Buttons
and System Mode Button are used in the Programming Mode
to make Menu changes and selection.
Set-Up Jumper (J50) Conguration:
(Factory Set Per Order)
CAUTION
Turn off power to the unit before reconguring the jumper set-
tings. Damage to the sensor board can occur if jumpers are
moved while there is power to the unit and sensor.
Figure 10: J50 Jumper (see Figure 3 on page 5 for location)
Label Description Setting
PRG Program Mode Program Mode = Jumper installed
or Run Mode for Program Mode (See Program
Menu below).
Run Mode = Jumper removed for
Run Mode (Place jumper on one
pin only).
F/C ºC Indication ºC = Jumper installed for ºC .
or ºF Indication ºF = Jumper removed for ºF
Indication (Place jumper on one
pin only).
MDL Sets the Model 910113679 = Jumper removed for
FCU or WSHP FCU (Default for units ordered
as FCU).
910121754 = Jumper installed for
WSHP (Default for units ordered
as WSHP).
Program Mode Menu Pages: (Display
Required)
Note: Both J50 “F/C” and J50 “MDL” jumpers must be
congured rst before entering the program “PRG”
mode.
Entering Program Mode And Making
Changes:
1. Install the J50 “PRG” jumper onto both pins to enter
Program Mode.
2. Press the Up/Down Buttons to advance to the desired
program parameter from P1 through P14 (Parameters
described below).
3. Press the System Mode Button to select the specic
program parameter to change.
4. Change the parameter value as described in the Mode
Menus section below. (Usually with the Up/Down Button)
5. Press the System Mode Button again to set the selected
parameter.
6. Press the Up/Down Buttons to proceed to the next
parameter (as in Step 2 above).
7. When done making changes, remove the J50 “PRG”
jumper (and place over one pin). This action will end the
Programming Mode and store all the values. The sensor is
now in the Run Mode.
Program Mode Menu Pages:
P1 Setpoint Mode (Factory set to temperature value “S1”.
J50 ºF/ºC must be set before entering the program
“PRG” mode).
• S1 – “UP/DOWN” to select setpoint to absolute
temperature setpoint value. Actual setpoint value set in
P4 and P5. Example: 55ºF (13º C) to 95ºF (35º C).
• S2 – “UP/DOWN” to select setpoint to relative
temperature setpoint value. Actual setpoint value set
in P4 and P5. Example: ±5.0ºF (±2.8ºC) or ±3.0ºF
(±1.6ºC) for Ennity systems.

Page 12 of 16 / IM 1171-3
Optional Technician Adjustments
Note: If P1 is changed, then P4 and P5 must be changed to
set desired setpoint values.
P2 Temperature Offset (Factory set to zero).
• “UP” to increase offset up to +2.
• “DOWN” to decrease offset down to -2.
P3 Humidity Offset (Factory set to zero).
• “UP” to increase offset up to +5
• “DOWN” to decrease offset down to -5.
P4 Setpoint Low Range (Factory set to 55°F or 13°C
depending on J50 °F/°C setting).
P1 in S1 Mode: Adjustment range 55 to 65°F or 13 to
18°C.
• “UP” to increase the low setpoint range up to 65°F
or 18°C.
• “DOWN” to decrease the low setpoint range down
to 55°F or 13°C.
P1 in S2 Mode: Adjustment range -3 to -5°F or -1.6
to -2.8°C.
• “UP” to increase the low setpoint range by -3°F or
-1.6°C.
• “DOWN” to decrease the low setpoint range by -5°F
or -2.8°C.
P5 Setpoint High Range (Factory set to 95°F or 35°C
depending on J50-°F/°C setting).
P1 in S1 Mode: Adjustment range 85 to 95°F or 29 to
35°C.
• “UP” to increase the high setpoint range up to 95°F
or 35°C.
• “DOWN” to decrease the high setpoint range down
to 85°F or 29°C.
P1 in S2 Mode: Adjustment range 3 to 5°F or 1.6 to
2.8°C.
• UP” to increase the high setpoint range by 5°F or
2.8°C.
• “DOWN” to decrease the high setpoint range by 3°F
or 1.6°C.
P6 Fan Lock Mode (Factory set to Unlocked “UnL”)
• “UP/DOWN” to set Fan Lock mode. Choose from
list below:
All Models UnL Enables fan to be controlled by the
Sensor Fan button
All Models FA Locks fan to the Fan Auto position
(No Sensor Fan button control)
WSHP Models FO Locks fan to the Fan On position
(No Sensor Fan button control)
FCU Models FH Locks fan to the Fan High speed
position (No Sensor Fan button
control)
FCU Models Fd Locks fan to the Fan Medium speed
position (No Sensor Fan button control)
FCU Models FL Locks fan to the Fan Low speed
position (No Sensor Fan button control)
FCU Models Fo Locks fan to the Fan Off position
(No Sensor Fan button control)
P7 System Lock Mode (Factory set to Unlocked “UnL”)
• “UP/DOWN” to set System Lock mode. Choose
from list below:
UnL Enables System to be controlled by the Sensor
System Mode button.
UH Locks System to the Heat mode (No Sensor
System button control).
UC Locks System to the Cool mode (No Sensor
System button control).
UA Locks System to the Auto mode (No Sensor
System button control).
UO Locks System to the Off mode (No Sensor Sys-
tem button control).
UD Locks System to the Dhum mode (No Sensor
System button control).
P8 Display Resolution (Factory set to ±0.5 resolution, “0.5”).
0.1 “UP/DOWN” to set resolution to ±0.1, (Rounds up
at .05).
0.5 “UP/DOWN” to set resolution to ±0.5, (Rounds up
at .08).
1 “UP/DOWN” to set resolution to ±1.0, (Rounds up at .5).
P9 DehumidicationDeadband(DB) (Factory set to
2%), (WSHP Only).
2 “UP/DOWN” to set Dead band at 2% (On at setpoint
SP, Off at SP-DB).
3 “UP/DOWN” to set Dead band at 3% (On at setpoint
SP, Off at SP-DB).
4 “UP/DOWN” to set Dead band at 4% (On at setpoint
SP, Off at SP-DB).
5 “UP/DOWN” to set Dead band at 5% (On at setpoint
SP, Off at SP-DB).
P10 Display Mode (Factory set to #16 for WSHP units,
factory set to #4 for FCU Units).
• “UP/DOWN” to set display mode.
• Choose from numbered list below. Choices 5-16 will
not be shown if P12 = nOH.
1 = No value on the main display (Blank).
2 = Temperature Value (TV).
3 = Temperature Setpoint (TSP).
4 = Temperature Value & Temperature Setpoint (FCU
Default).
5 = Humidity Value (HV).
6 = Temperature Value & Humidity Value.
7 = Humidity Value & Temperature Setpoint.
8 = Temperature Value, Temp Setpoint & Humidity
Value.

IM 1171-3 / Page 13 of 16
Optional Technician Adjustments
9 = Humidity Setpoint (HSP).
10 = Temperature Value & Humidity Setpoint.
11 = Temperature Setpoint & Humidity Setpoint.
12 = Temperature Value & Temp Setpoint & Humidity
Setpoint.
13 = Humidity Value & Humidity Setpoint.
14 = Temperature Value, & Humidity Value &
Humidity Setpoint.
15 = Humidity Value & Temperature Setpoint &
Humidity Setpoint.
16 = Temperature Value & Temperature Setpoint &
Humidity Value & Humidity Setpoint (WSHP
Default).
P11 SetpointButtonLockout (Factory set to “0”: Temp.
& Humidity Setpoint Enabled.
Note: Selections in P11 will impact Menu P10).
0 Both Temperature & Humidity Setpoints are enabled
(No Setpoint lockout, WSHP Units Only).
1Humidity Setpoint Only is Enabled (Temperature
setpoint is locked out, WSHP Units Only).
2Temperature Setpoint Only is Enabled (Humidity
setpoint is locked out).
3 Both Temperature & Humidity Setpoints are Disabled
(Full Setpoint lockout).
P12 DehumidicationEnable/Disable
nOH Dehumidication is Disabled (Factory default
for FCU Units).
HuA Dehumidication is Enabled (Factory default
for WSHP Units).
P13 OccupancyButtonEnable/Disable (Factory set to
enabled “ObE”).
ObE Occupancy Button Enabled (Factory default)
Obd Occupancy Button Disabled
P14 Firmware Version - XXX.X
P15  ForUnitswithaBACnetorLonWorks 
Communications Module
Setpoint Calibration Offset (Factory set to “0”.)
• “UP” to increase offset up to +100 will raise the
MicroTech III perceived set point from the sensor.
• “DOWN” to decrease offset down to -100. This will lower
the MicroTech III perceived set point from the sensor.
Calibratethedisplayedsetpointtothesetpointvaluesent
to the MicroTech III as follows:
1. Set the digital room sensor displayed set point to 90° F.
2. Observe the local set point via the BAS/EMS connected
by the BACnet or LonWorks Communications Module.
3. Adjust the Conguration Menu P15 on the sensor until
the local set point and the displayed set point are equal.
P15 ForUnitswithoutaBACnetorLonWorks
Communications Module
Setpoint Calibration Offset (Factory set to “0”.)
• “UP” to increase offset up to +100 will raise the
MicroTech III perceived set point from the sensor.
• “DOWN” to decrease offset down to -100. This will lower
the MicroTech III perceived set point from the sensor.
The Setpoint Calibration Offset can be calculated using the
following formula:
ROUND [(Controller Vdd / Sensor Vdd )*1000]-1000
Example:
Given: Controller Vdd = 5.15VDC
Sensor Vdd = 4.95 VDC
TheprogrammedCalibrationOffsetwouldbe
[(5.15/4.95)*1000] -1000 = 40

Page 14 of 16 / IM 1171-3
Diagnostics
Problem & Possible Solution
No Display
• Check the power connections and power voltage level
• Replace unit if power is okay.
No Temperature Signal
• Be sure the termination and wiring is correct and the
controller is set up properly. Make sure the “Override/
Reset” button is not stuck down.
• Replace unit if all checks are okay.
Override/Reset Not Working
• Measure the resistance to ground at the sensor output
terminal (Term. 4). When pushing the Override Button, it
should show a short. If not, replace the sensor.
No Fan Voltage Signal
• Be sure the termination and wiring is correct and the
controller is set up properly.
• Replace unit if all checks are okay.
No System Voltage Signal
• Be sure the termination and wiring is correct and the
controller is set up properly.
• Replace unit if all checks are okay.
De-humidication Not Working
• Adjust the System Mode to DHUM and check terminal
DH for voltage.
• Change the RH setpoint above and below the ambient RH
to prove the output contact.
• Replace unit if it still doesn’t work.
Occupied Not Working
• Verify that this terminal is in a powered circuit. Measure
the voltage to ground at the occupied terminal (U). When
pushing the Occupied Button (<2 secs), it should read
close to 0 volts. When you lift the button it should read
high volts.
• Replace unit if it still doesn’t work.
“Err” shown on the screen
• This indicates that the temperature and humidity sensing
element has failed.
Problem & Possible Solution (Continued)
FAN key does not change Fan Mode
• Check to verify FAN is not locked out in Programming
Mode Menu Page P6.
MODE key does not change System Mode
• Check to verify Mode is not locked out in Programming
Mode Menu Page P7.
Up or Down key does not change Setpoints
• Check to verify Set points are not locked out in
Programming Mode Menu Page P11.
Solid Man goes away after 20 seconds
• Occupancy Request was not acknowledged by Main
controller, check wiring of Status Signal from controller.

IM 1171-3 / Page 15 of 16
Specications
Supply Voltage:
AC Hot.....................(R) 7 to 28VAC, 24VAC nominal, 0.17VA
GND/Neutral...........(5) Sensor common reference ground.
Sensor:
Temperature ............10K-2 Thermistor, ±0.36ºF (±0.2ºC)
Humidity.................2% Accuracy from 20 to 80%,
Capacitive.
Outputs:
Unoccupied.............(U), Unoccupied = Digital low to ground
(Same ground as power source), 100mA
@5VDC max.
Dehumidify .............(DH), = Dehumidify = Voltage output
(same as supply voltage), 170mA max.
System Off ..............(E), System Off = Digital low to ground
(Same ground as power source), 100mA
@5VDC max.
Fan Speed................(2 or 6), Analog, 0 to 5 VDC.
System Mode ..........(2), Analog, 0 to 5 VDC.
Setpoint...................(3), Analog, 0 to 5 VDC.
Temperature ............(4), Analog thermistor resistance.
Sensor Controls:
Setpoint ..................2 Up/Down buttons
System.....................1 button to cycle between Heat/Cool
Auto/Off/Dhum/Off
Fan...........................1 button to cycle between Auto/High/On.
Occupied.................1 button to check and request change in
Occupancy Status.
Override/Reset .......1 button to request timed occupancy
override and reset alarms.
Inputs: .....................(1), Controller alarm & system status,
5VDC max.
Termination:............10 Terminals, 16 to 22 AWG.
Mounting:................Standard 2" × 4" J-Box or Drywall
Field Setup Jumper J50:
PRG ...........................Program Mode, On = Program, Off = Run.
F/C...........................Display Units, On = ºC, Off = ºF.
MDL........................MODEL, On = WSHP.
Display:
LCD
Overall size .............2.04"W × 1.33"H.
Main Digits .............±999.9 Digits @0.6"H
Resolution...............0.5 displayed value, 0.1 for offset adjust
Main Value ..............Temp, Humidity & Setpoint, toggling
every 5 sec.
Eng. Units ...............ºF, ºC, %RH.
System.....................Heat/Cool/Auto/Off/Dhum.
Fan...........................Auto/High/Medium/Low/Off.
Occupied Icon..........Hollow = Unoccupied, Solid = Occupied.
Function ..................Override, Alarm, E-Save, Setpoint
Field Conguration Menu:
Requires J50 PRG jumper to be “On”.
Offset.......................Temp or Humidity display, ±2ºF (±1.0ºC)
and ±5% RH.
Setpoint range .........Default 55º to 95ºF (13º to 35ºC), ±3ºF
(±1.6ºC) or ±5ºF (±3ºC). Adjustable
between 55º to 95ºF, ±3ºF (±1.6ºC) or
±5.0ºF (±2.8ºC).
Fan Lock-in.............Any fan speed or off can be locked in
System Lock-in. Any system mode can
be locked in
Resolution...............Main display can be default .5, or .1 or
1.0 (ºF, ºC or %).
Display Mode..........Temp only, RH only, Setpoint only or
any combination.
Dhum DB ..................Dehumidify Dead Band adjust, 2% default.
Enclosure Material:
ABS Plastic, UL94V-0.
Ambient:
32º to 122ºF (0º to 50ºC), 0 to 95%RH, Non-condensing.
Agency:
RoHS.

©2013 McQuay International • 800.432.1342 • www.mcquay.com IM 1171-3 / Page 16 of 16
Daikin McQuay Training and Development
Now that you have made an investment in modern, efficient Daikin McQuay equipment, its care should
be a high priority. For training information on all Daikin McQuay HVAC products, please visit us at
www.daikinmcquay.com and click on Training, or call 540-248-9646 and ask for the Training Department.
Warranty
All Daikin McQuay equipment is sold pursuant to its standard terms and conditions of sale, including
Limited Product Warranty. Consult your local Daikin McQuay Representative for warranty details. Refer
to Form 933-430285Y. To find your local Daikin McQuay Representative, go to www.daikinmcquay.com.
Aftermarket Services
To find your local parts office, visit www.daikinmcquay.com or call 800-37PARTS (800-377-2787).
To find your local service office, visit www.daikinmcquay.com or call 800-432-1342.
This document contains the most current product information as of this printing. For the most up-to-date
product information, please go to www.daikinmcquay.com.
Products manufactured in an ISO certified facility.