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Series 2200 Relative Humidity and
Temperature Room Units For
APOGEE® Controllers
Product Description
These room units measure relative humidity and
temperature in the occupied space in which they are
installed. Models with display allow users to view the
measured temperature value. A version with
temperature setpoint adjustment is also offered.
These devices are intended for use with appropriate
signal input on an APOGEE Controller. The effective
sensing range is 32°F to 122°F (0°C to 50°C), and
the setpoint range is 55°F to 95°F (13°C to 35°C).
These room units can be mounted on electrical
boxes, stud-type mounting brackets, or drywall.
Obtain the necessary mounting hardware and follow
the appropriate mounting procedures for the type of
installation required.
Installation Instructions
Document No. 129-104
October 1, 2013
Expected Installation Time
20 minutes
Required Tools
• Sizes 1 and 2 Phillips screwdrivers
• Small and medium flat-blade screwdrivers
• 1/16-inch hex key
• Medium-duty electric drill
• 3/16-inch (4.8 mm) drill bit
• One-inch (25 mm) hole saw
• Small level
• Tape measure
• Marker or pencil
Product Numbers
QFA3212.FWSN QFA32SS.FWSN
QFA3212.EWSN QFA32SS.EWSN
Accessories
AQA2200-INTL Room Unit Back Plate
(10-pack)
AQA2200-2X4 Room Unit Back Plate
(Single)
563-102 GSKT Kit Room Sensor Insulating
Gasket (10-pack)
(For hollow wall installations)
NOTE: If installing the Back Plate, discard the
metric screws provided with the Back Plate
and utilize the Room Unit mounting screws.
Caution Notations
CAUTION
Item Number 129-104, Rev. HA
Equipment damage or loss of
data may occur if you do not
follow a procedure as
specified.
Prerequisites
• Review these instructions before beginning.
• Installed: appropriate field wiring within the
maximum wiring run length for the individual
equipment controller. The maximum
recommended length is 750 feet (229 m) for
18 AWG; 300 feet (91 m) for 22 AWG.
• All wiring must comply with National Electric
Code (NEC) and local regulations.
Figure 1. Typical Temperature Room Unit.
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Document No. 129-104
Installation Instructions
October 1, 2013
Mounting Information
Always mount the room unit vertically.
Locate the room unit:
• according to design specifications and local
regulations.
• where the air circulates around it freely (not in
recessed areas or behind doors).
• allowing a minimum of 4 inches (10 cm) free
space above and below for proper airflow, the
front cover removal tool, and the computer
communication cable.
• away from drafts caused by doors, windows,
outside walls, air registers, pipes, return air
plenums, etc.
• away from heat sources such as strong lights,
fireplaces, direct sunlight, etc.
• on an inside wall (preferably), about 5 feet
(1.5 m) above the finished floor.
Drywall Mounting (No Rough-in),
Typical
Figure 2. Insulating Gasket.
4. Pull about three inches (75 mm) of the cable through
the hole in the base plate.
5. Mount the room unit base plate on the wall, noting
the UP arrow:
NOTE: If required, position the Back Plate
behind the Room Unit Base, aligning the
top and bottom mounting holes, prior to
mounting to the wall:
a. Install the two mounting screws provided, but
do not tighten.
b. Level the room unit base plate for appearance.
c. Tighten the two mounting screws to the room
unit base plate.
Base Plate Mounting and Wiring
1. Mark the center (cable) hole and the mounting hole
locations, using the room unit base plate as a
template. See
2. Drill two 3/16-inch (4.8 mm) mounting holes and
mount the two plastic wall anchors flush to below the
wall surface for stable mounting of the device.
3. Cut a 1-inch (25 mm) center hole with a hole saw.
NOTE: It is recommended that you use the
Figure 3.
optional Insulating Gasket on the back of
the Sensor Base for hollow wall
installations.
When applying the adhesive-backed
gasket to the back of the Sensor Base,
orient the gasket so that the cut-out
ow portion of the gasket is in the
arr
upper lefthand quadran
Base. The Sensor Base has an UP arrow
molded into the surface in the same
quadrant location (see
t of the Sensor
Figure 6).
6. Cut the cable, leaving about three inches (75 mm)
on the room unit side of the drywall. Ensure that pin
Number 1 connects to the same wire at each end of
the cable.
NOTE: See Figure 2 for details on optional Gasket
application.
Page 2 of 5 Siemens Industry, Inc.
Figure 3. Drywall Mounting (No Rough-in), Typical.
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Document No. 129-104
Installation Instructions
October 1, 2013
7. Terminate the wires to the termination blocks on the
room unit's base plate. (See
Figure 6.)
8. Feed the extra cable back through the hole.
Sensor Set-up
R64 Resistor
(°F/°C Selector)
Jumper
5V
10V
Voltage/Current
Selector Switch
V
I
SEN0589R1
Figure 4. Circuit Board
(Located inside Room Unit Cover.
1. If the device has a switch, determine if voltage or
current output is needed.
F
°
SEN0588R1
Figure 5. Changing Display to °C.
C
°
3. Snap the room unit cover to the room unit base plate
by first hooking the room unit front to the top latches,
and then rotating the cover downward until it latches.
4. Loosen the safety set screw at the bottom of the
base one or two revolutions to lock the cover to the
base. Be careful not to loosen too far as the screw
can be completely removed from the base.
Electrical Box and Rough-in
Mounting, Typical
• For current, set the switch in the down position
(I).
• For voltage, set the switch in the up position (V).
NOTE: The output setting applies to all outputs
(humidity, temperature, and setpoint).
2. If selecting voltage, set the jumper:
• Use the top and middle pins for 0-5V.
• Use the bottom and middle pins for 0-10V.
NOTE: If the jumper is missing or removed, the
output voltage will default to
0-10V.
NOTE: The factory default for displayed temperature
units is °F. To change the display to °C, snip the
wire jumper (0 Ohm resistor R64) on the back of
the PCA.
1. If a locator is attached to the rough-in device,
remove the locator by removing the two screws and
lightly rocking the locator to pull it free.
2. Untie the twist tie and pull about three inches (75
mm) of the room unit cable through the hole in the
base plate.
3. Mount the room unit base plate on the wall, noting
the UP arrow:
a. Install the two room unit mounting screws
provided, but do not tighten.
b. Level the room unit base plate for appearance
only.
c. Tighten the two mounting screws to the room
unit base plate.
CAUTION:
Over-tightening may cause the room unit
base plate to crack or bend.
4. Continue with Drywall Mounting (No Rough-in),
Typical, Steps 6 through 8, and Sensor Set-up.
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Document No. 129-104
Installation Instructions
October 1, 2013
CAUTION:
To prevent equipment damage, do the
following:
If room unit is powered by AC (See
.):
8
• AC Supply must be type NEC Class
2 and earth grounded at the
secondary neutral.
• Room Unit ACN (GND) must be
connected to the controller common.
Figure
10
11
12
7
8
9
1
2
3
4
5
6
• If the controller has a floating
common, that common must be
connected to the same earth ground
point as the controller AC supply.
If room unit is powered by isolated DC
Figure 7):
(See
• Where power is current limited up to
300 mA, it is not required to earth
ground the controller isolated
common.
• Room Unit DC-(GND) must be
connected to the controller common.
CAUTION:
Follow manufacturer’s Installation
Instructions and Wiring Guidelines for
connecting the controller to the Room
Unit.
SEN0485R1
Figure 6. Typical Wiring Base.
(All terminals may not be present.)
Pin No. Function
QFA3212.EWSN or QFA32SS.EWSN
1 DC+ or ACH
2 DC- or ACN (GND)
3 Temp Output
4 Humidity Output
5* Passive Temp
6* Passive Temp Common
QFA3212.FWSN or QFA32SS.FWSN
1 DC+ or ACH
2 DC- or ACN (GND)
3 Temp Output
4 Humidity Output
• APOGEE Controllers with common
already earth grounded are TXIO used
on PXC Modular, PXC Compact 36
Expansion and P1 BIM or PTM used
on MBC and RBC. These do not
require the earth ground wire to be
connected to the controller as shown in
Figure 8.
• APOGEE Controllers with floating
common are PXC Compact 16/24/36,
MEC, PXM, LON TEC and PPM.
These require the earth ground wire to
be connected to the controller as
shown in
Figure 8.
NOTE: If active temperature (0-5V/0-10V/4-20 mA)
The installation is now complete.
5* Passive Temp
6* Passive Temp Common
7 Setpoint Output
8 Override
9 Override Common
* Not available on “SS” models.
(Pin 3) rather than passive/resistive temperature
is used, Passive Temp Common (Pin 6) does
not need to be terminated.
Page 4 of 5 Siemens Industry, Inc.
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NOTE:
Externally DC powered
2200 Room Units require
isolated DC supply with all
commons connected and
may be used on the same
controller with other Room
Units powered by Internal
Sensor Supply.
See Controller
Installation Instructions
Powered By
Controller
2200
DC+ ACH
DC- ACN (GND)
Signal Out
Powered By
Isolated DC
2200
DC+ ACH
DC- ACN (GND)
Signal Out
SEN0650R1
For Power Input
Requirements
CONTROLLER
Sensor Power DC
Common
Signal In
Common
Signal In
Isolated DC
Supply 300 MA Max.
I
I
DC+
DC-
AC
I
IN
I
I
Figure 7. Externally DC Powered 2200 Room Units.
Document No. 129-104
Installation Instructions
October 1, 2013
Powered By
Controller
2200
DC+ ACH
DC- ACN (GND)
Signal Out
Powered By
Class 2 (100VA)
Isolated AC
2200
DC+ ACH
DC- ACN (GND)
Signal Out
SEN0649R1
With Class 2 (100 VA) Output
Isolated AC Supply
(See Controller
CONTROLLER
Sensor Power DC
Common
Signal In
Common
Signal In
Common
Signal In
Common
Isolated AC Supply
Common
Signal In
Class 2
100 VA Max.
Installation Instructions)
L N E
ACH
ACN
100 VA
ACH
ACN
I
I
I
I
I
Class 2 (100VA)
DC+ ACH
DC- ACN (GND)
Signal Out
L N E
Powered By
Isolated AC
2200
I
I
ACH
ACN
I
I
Note: See Caution
I
Figure 8. Externally AC Powered 2200 Room Units.
NOTE:
Externally AC powered
2200 Room Units require
controller common and all
AC secondary neutral ACN
to be earth grounded and
may be used on the same
controller with other room
units powered by internal
sensor supply.
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as
design improvements are introduced. APOGEE is a registered trademark or Siemens Industry, Inc. Other product or company names mentioned herein
may be the trademarks of their respective owners. © 2013 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089
USA
+ 1 847-215-1000
Your feedback is important to us. If you have
comments about this document, please send them
to SBT_technical.editor.us.sbt@siemens.com
Document No. 129-104
Printed in the USA
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