Piro Sensor Installation and operating manual - AmeriStar Energy

PIRO-SENSOR
Ameristar Energy, LLC
Installation and Operating Instructions
For S-PIRW1, S-PIRTW1,
and S-PIRPW1
Ameristar Energy, LLC PO BOX “C” BEDMINSTER, PA 18910
www.ameristareps.com 7000-0006 rev. 122211

Description Page No.
Overview
Specifications
- Environmental/Electrical
- Wire colors and functions
- Viewing angles
Mounting and Installation with thermostat
Mounting and Installation with PTAC unit
Piro sensor-thermostat wiring diagrams
Piro sensor-PTAC wiring diagrams
Piro sensor Programming
Piro sensor-thermostat testing
Piro sensor-PTAC testing
Table of Contents
3
3
3
4
4
5
7
9
10
11
12
Page 2

The Piro-Sensor is a dual sensing occupancy sensor that uses both motion and infrared to sense
the presence of people.
The sensor covers small motion up to 20 feet and large motion up to 50 feet. The motion
sensor continuously searches for occupants.
There is a selectable time delay (1 to 12 hours) that keeps the Piro-Sensor from placing the
thermostat or PTAC unit into the unoccupied mode prematurely.
The Piro-Sensor detects changes in the infrared energy given off by occupants as they move
within the Piro-Sensor’s field-of-view. When occupants are detected, an internal relay is
set to the occupied mode. If no occupants are detected duringthe selected time delay period,
the Piro-Sensor changes the internal relay to the unoccupied mode at the end of the time delay
period. The time delay setting should be set so the room/building does not change from
occupied to unoccupied in less than two hours.
NOTE:
Environment/Electrical:
Internal relay (Occupied Mode)
Brown
(Common)
Green (NO)
Internal relay (Un-occupied Mode)
Brown
(Common)
1. Humidity: 20 to 90% non-condensing
2. Ambient temperature: 14° to 160°F
3. Storage temperature: 14° to 160°F
4. Operating voltage: 12-24VAC/VDC
5. Relay contact rating: 1A @24vac
0.5A @120vac
Overview
Internal relay energized during Un-occupied
mode
Specifications
Gray (NC)
Gray (NC)
Green (NO)
Wiring colors and functions:
Black - 12-24VAC/VDC
White - Common
Brown - Relay common
Green - Relay normally open contact
Gray - Relay normally closed contact
Page 3

Viewing angles:
The Occupancy sensor’s location and position is critical, as the person must be viewed when they
are NOT generally moving, such as in bed, sitting, watching TV, etc. (See figure below) The time delay
is reset every time the person’s motion is observed by the sensor. Therefore, the Occupancy sensor
does not necessarily have to be positioned to view the people at all times. Periodic movement in front
of the sensor will reset the time delay function.
Corner mount with
2” spacer
Small motion (e.g. Hand movements) detected up to 30 ft.
Large motion (e.g. Walking) detected up to 50 ft.
Designed for 5’.6”mounting
If you need to get a closed view of the wall, in which the “Occupancy Sensor” is mounted on, you will
need a spacer to angle the sensor down towards the floor.
Mounting and installation with thermostat
The Piro-Sensor has a tilt adjustment so it can be mounted anywhere between 4’ to 5’6”. If the sensor will
be mounted any higher, the enclosed spacer must be used.
Fig. 1
1. Hold back of sensor and remove the pin from the top (Fig.1)
2. Grasp the front and the back of the sensor and carefully
separate the two pieces.
Pin
Back case
Flat wall
mount with
7/8” spacer
! Caution REMOVE POWER BEFORE DOING ANY WORK!
Installation shall be done by a licensed electrician and/or licensed HVAC contractor. Installation
and wiring shall adhere to all state, local and federal codes and requirements.
Page 4

3. Place the back plate at the desired mounting location and
mark the location of the mounting holes and wire
Mounting Holes
hole (Fig 2). The sensor can be mounted
next to the thermostat provided the field-of-view is not
obstructed.
Fig.2
4. Drill one hole for sensor wires and two mounting holes for mounting anchors. Insert the plastic
anchors (provided) into the mounting holes.
5. Fish a wire cable through the wire hole to the thermostat junction box.
6. Insert the fished wires from the wall through the center hole on the back of the case.
7. If mounting sensor with spacer see MOUNTING WITH SPACER step #17. Place the back case
on the wall and insert the screw through the mounting hole to the anchors.
8. Connect the sensor wires to the fished wires. Push extra wire length back into the hole.
9. Secure the back plate to the wall with screws.
10. Hold the front of the case and place the indentations (inside front case) under the prongs on the case
back.
11. Push the front of the case towards the wall until the pin holes match up.
12. Place the pin in the appropriate hole based on the mounting height listed below.
Tilt adjustments: Note: Pin position 1 is farthest from the
wall when sensor is mounted
Mounting Pin
Pin in position 1
Height Position
5’ 6” 1 = (-5°)
5’ 2 = (0°)
4’ 3 = (+5°)
13. Verify the input voltage at the thermostat junction box is 24VAC. If the input voltage is 120/240 VAC
a transformer will need to be connected between the line voltage and the occupancy sensor 24 vac
power supply lines (see wiring diagram #1).
14. Connect the occupancy sensor wires to the proper locations on the terminal strip located in the thermostat
(reference thermostat manual and/or wiring diagram section in this manual).
15. Connect the HVAC system wires to the thermostat and place thermostat module on the thermostat base.
16. After the thermostat has been installed, test to make sure that the Piro-Sensor and thermostat are operating
the HVAC system properly (reference test section in this manual).
MOUNTING WITH SPACER:
17. Place dry wall screw (provided) through top mounting hole in back plate. Slide spacer (7/8” length if mounting
to flat wall, 2” length if mounting in corner) over screw so angled end is against the mounting plate. The flat
end will be against the wall. Place end of screw over the top mounting hole area (previously marked) and
screw into wall until the flat part of tube is snug against the wall.
18. Place 2nd screw through bottom mounting hole (if corner mounting this screw is not needed) and screw
into wall until bottom of Piro-sensor is snug against wall. Return to step #8.
!
Mounting and installation with PTAC unit
The Piro-Sensor has a tilt adjustment so it can be mounted anywhere between 4’ to 5’6”. If the sensor will be
mounted anyhigher, the enclosed spacer must be used.
Page 5
Prongs
Wire hole
Caution REMOVE POWER BEFORE DOING ANY WORK!
Installation shall be done by a licensed electrician and/or licensed HVAC contractor. Installation
and wiring shall adhere to all state, local and federal codes and requirements.

1. Hold back of sensor and remove the pin from the top (Fig.1)
2. Grasp the front and the back of the sensor and carefully separate the two pieces.
3. Place the back plate on desire wall area and marks the location of the mounting
holes and wire hole (Fig 2).
Mounting Holes
4. Drill one hole for sensor wires and two mounting holes for mounting anchors. Insert the plastic anchors
(provided) into the mounting holes.
5. Fish a wire cable through the wire hole to the PTAC unit.
6. Insert the fished wires from the wall through the center hole of the back of the case.
7. If mounting sensor with spacer see MOUNTING WITH SPACER step #15. Place the back case on
the wall and insert the screw through the mounting hole to the anchors.
8. Connect the sensor wires to the fished wires. Push extra wire length back into the hole.
9. Secure the back plate to the wall with screws.
10. Hold the front of the case and place the indentations (inside front case) under the prongs on the case
back.
11. Push the front of the case towards the wall until the pin holes match up.
12. Place the pin in the appropriate hole based on the mounting height listed below.
Tilt adjustments: Note: Pin position 1 is farthest from the
wall when sensor is mounted
Mounting Pin
Height Position
5’ 6” 1 = (-5°)
5’ 2 = (0°)
4’ 3 = (+5°)
13. Connect the occupancy sensor wires to the proper locations on the terminal strip located inside the
PTAC unit (reference PTAC installation manual and/or wiring diagram section in this manual).
14. Test to verify the Piro-Sensor and PTAC unit are functioning properly (reference test section in this manual)
MOUNTING WITH SPACER:
Prongs
15. Place dry wall screw (provided) through top mounting hole in back plate. Slide spacer (7/8” length if
mounting to flat wall, 2” length if mounting in a corner) over screw so angled end is against the
mounting plate. The flat end will be against the wall. Place end of screw over the top mounting hole
area (previously marked) and screw into wall until the flat part of tube is snug against the wall
16. Place 2nd screw through bottom mounting hole (this screw is not necessary if mounting in corner)
and screw into wall until bottom of Piro-sensor is snug against wall. Return to step #8.
.
Fig.2
Wire hole
Pin in position 1
Pin
Fig. 1
Back case
Page 6

1. Piro-Sensor with transformer:
3. Piro-Sensor with TC1 thermostat
S-PIRW1-024
Black
White
Brown
Green
24Vac
JP1
Piro-Sensor/Thermostat wiring diagrams
1- Common
2- Remote
3- Heat
4- Cool
5- 2PIPE
6- COM.SW.
7- DOOR
8- BLOWER
9- UN-OCC
10- SR-SOON
11- SR-NOW
12- FILTER
Un-occupied
Black
Input voltage
White
Transformer
Transformer
Input: Line voltage
Output: 24VAC
JP2
JP3
Red
Red
TC1- 24V models only
Line
Neutral
2. Piro-Sensor with T31 thermostat
S-PIRW1-024
Black
White
Brown
Green
24Vac (Black)
OC1 OC1
C RH RC G O Y Y2 B W W 2 L1 L2
OC1 OC2
Re v. Valve O
Damper 1st Stage
Cooling
2nd Stage Cooling i
O Y2 Y1 G C R W1 W2 B
4. Piro-Sensor with T60 thermostat:
120VAC 24VAC
Transformer
Class II
Fan
Rev.Valve O
Rev. Va lve B
2nd Cooling
1st Cooling
C R G O Y Y2 B W W2
Common (White)
Brown (Relay Common)
Green (NO Relay)
1st Stage
Heating
2nd Sta ge
Heaitng Fan
T60’s series model
S-PIRW1-024
1st Heating
2nd Heating
Rev. Valve B
24VAC 120VAC
Equipment Transformer
Page 7

5. Piro-Sensor with thermostat, no occupancy terminals:
*S-PIRTW1-024-Lx
Brown (Relay Common)
Gray (NC Relay)
Green (NO Relay)
Black (24 VAC))
White (Common)
6. Piro-Sensor to thermostat with no occupancy terminals, separate
transformer for motion sensor required:
*S-PIRTW1-024-Lx
24vac
Brown (Relay Common)
Gray (NC Relay)
Green (NO Relay)
Black (24 VAC))
White (Common)
Transformer
Class II (min. 2VA)
7. Piro-Sensor with T31 thermostat, separate transformer to power
motion sensor
S-PIRW1-024
Black
White
Brown
Green
24VAC
O Y2 Y1 G C R W1 W2 B
Rev.Valve O
2nd Cooling
OC1 OC1
1st Cooling
Fan
1st Heating
2nd Heating
Rev. Valve B
Line
Voltage
24VAC Line voltage
Equipment Transformer
PTAC Unit
C R G O Y Y2 B W W2
Wall Thermostat
Line voltage
Additional transformer
(min. 1VA)
Remote Thermostat connector
C R G O Y Y2 B W W2
PTAC Unit
24VAC
Line
Voltage
Remote Thermostat connector
C R G O Y Y2 B W W2
C R G O Y Y2 B W W2
Wall Thermostat
Motion sensor requires 2VA.
If voltage between R and C
drops to less than 20V when
motion sensor and PTAC unit
are active, PTAC transformer
VA rating is insufficient.
A separate transformer is
needed for motion sensor
see wiring diagram #6
Page 8

Piro-Sensor/PTAC unit wiring diagrams
1. Piro-Sensor to PTAC with OC1/FD1 and OC2/FD2 terminals
Brown (Relay Common)
Green (NO Relay)
Black (24 VAC))
White (Common)
**S-PIRPW1-024-Lx
OC1/FD1
OC2/FD2
2. Piro-Sensor to PTAC with OC1/FD1 and OC2/FD2 terminals
Brown (Relay Common)
Gray (NC Relay)
Green (NO Relay)
Black (24 VAC))
*S-PIRTW1-024-Lx
White (Common)
3. Piro-Sensor to PTAC with EM and C terminals
**S-PIRPW1-120-Lx
**S-PIRPW1-240-Lx
**S-PIRPW1-277-Lx
(R)
120/240/277vac Transformer 24vac
(C)
15VA
OC1/FD1
OC2/FD2
R
C
R
C
Green (NO Relay)
Brown (Relay Common)
Black (24 VAC)
White (Common)
PTAC Unit
PTAC turns ON when
OC1/FD1 and OC2/FD2 are OPEN.
PTAC turns OFF when
OC1/FD1 and OC2/FD2 are SHORTED.
PTAC Unit
PTAC turns ON when
OC1/FD1 and OC2/FD2 are SHORTED.
PTAC turns OFF when
OC1/FD1 and OC2/FD2 are OPEN.
PTAC Unit
EM (energy management)
C
PTAC turns ON when
0 vac applied to EM
PTAC turns OFF when
24vac applied to EM.
Page 9

4. Piro-Sensor to 240vac power switching board in PTAC
*S-PIRTW1-024-Lx
*NOTE for S-PIRTW1-024-Lx:
White (Common)
Brown (Relay Common)
Black (24 VAC)
Green (NO Relay)
Gray (NC Relay)
Internal relay energized during Un-occupied
mode
Internal relay (Occupied Mode)
Brown
(Common)
Green (NO)
Internal relay (Un-occupied Mode)
Brown
(Common)
Gray (NC)
Gray (NC)
Green (NO)
Closes when room temperature rises above or drops below the
occupancy sensor’s cool and heat limit set points
(Typically 80F for cool and 60F for heat)
Programming
C1 C2 H1 H2
1 2 3 4
RLY1
D1 D2 D3 D4
240vac from
wall outlet
L2 L2 INPUT L1 L1
Selecting time delay:
The delay should be set based upon your guests behavior. If your guests generally stays in the room
for long periods of time then you should set the time for shorter periods such as 2 hours. If the guests
leave the room frequently for short periods of time then you should set the time delay for a longer
period of time such as 3-4 hours.
MOV
Xfmer
OUTPUT
L1 L1 N N
To PTAC
240vac
input
Power must be turned ON prior to programming. Piro-sensor flashes once when power is initially applied.
Checking and programming the Piro-Sensor time delay:
a. Press & Hold the PIRO-Sensor Program Button for 10 seconds,
“RED LED” will flash rapidly (Fig. 1)
.
b. Remove your finger from the button.
c. Press program button twice (Fig. 2).
**NOTE for S-PIRPW1-024-Lx:
Internal relay energized during Un-occupied
mode
Internal relay (Occupied Mode)
Brown
(Common)
Flash rapidly
Flashes each time
button is pressed
Green (NO)
Internal relay (Un-occupied Mode)
Brown
(Common)
Gray (NC)
Gray (NC)
Fig.1
Fig.2
Green (NO)
Opens when room temperature rises above or drops below the
occupancy sensor’s cool and heat limit set points
(Typically 80F for cool and 60F for heat)
Press and hold for until sensor
flashes rapidly, 10 seconds
Press button twice to enter
program mode
Page 10

i
d. Red LED will flash the number of hours that have been previously programmed
(2 Hr factory default - Fig.3).
DO NOT PROGRAM PIRO-SENSOR UNTIL FLASHING has stopped
Do not program until flashing
has stopped!
Count the Hrs Delay
(2 Hr factory default)
e. Press Program Button for the number of hour you want the time delay set to (Fig 4).
Reference Table 1 below.
f. Remove finger from the program button.
g. The red LED will then flash the number of times the time delay is
programmed for (Fig 5).
- If the red LED flashes the correct number of times for the
desired time delay, go to step h.
- If the red LED flashes the incorrect number of times for the
desired time delay, go back to step e.
h. Press and Hold the program button until the red LED flashes rapidly (Fig. 6)
i. Remove finger from the program button.
j. Press Program button twice (Fig 7).
K. The red LED will flash twice confirming that the program has been saved (Fig 8).
1 = 1 hour,
2 = 2 hour,
3 = 3 hour,
4 = 4 hour,
5 = 5 hour,
6 = 6 Hours,
7 = 7 Hours,
8 = 8 Hours,
9 = 9 Hours,
10 = 10 Hours,
11 = 11 Hours,
12 = 12 Hours,
Flashes each time
button is pressed
Fig.7
13 = 30 seconds, Test mode
Only
Table. 1
Flash rapidly
Flashes each time
button is pressed
Press twice to save program
Piro-Sensor- Thermostat Testing
Fig.4
Sensor will flash the number
of times the time delay is
now programmed for
Fig.1 Fig.6
Sensor will flash 2 times
Fig.3
Press the new hour time delay
(see table 1)
Count the new Hrs
Fig.5
Press and hold the button until
the sensor flashes rapidly
Programming is complete
Note: When power is initially applied to Piro-sensor, it take approximately 90 seconds for the unit to initialize.
Once the Piro-Sensor has been mounted and wired, test by following the steps below:
1. Change Piro-Sensor programming to test mode (13 flashes - reference programming section in this manual).
2. Verify the thermostat unoccupied mode limits have been set properly (consult thermostat user manual)
3. Change thermostat settings so either the heat or the cooling system turns ON.
Page 11
Fig.8

4. Completely cover Piro-sensor so no motion is seen for 30 seconds. The Piro-Sensor will go into the unoccupied
mode.
5. Verify that the thermostat changes to the unoccupied mode and the HVAC system turns OFF.
6. Move and verify the thermostat goes back to the occupied mode and the HVAC system turns back ON
(there may be a 3 minute delay depending on the HVAC system).
Piro-Sensor/PTAC Testing
Note: When power is initially applied to Piro-sensor, it take approximately 90 seconds for the unit to initialize.
Once the Piro-Sensor has been mounted and wired, test by following the steps below:
1. Change Piro-Sensor programming to test mode (13 flashes - reference programming section of this
manual).
2. Change PTAC settings so either the heat or the cooling system turns ON.
3. Completely cover Piro-sensor so no motion is seen for 30 seconds. The Piro-Sensor will go into the unoccupied
mode.
4. Verify the HVAC system turns OFF.
5. Move and verify the HVAC system turns back ON (there may be a 3 minute delay depending on the
HVAC system).
Included Components and Usage
1
6
2
3
7
9
4
5
8
Page 12

Included Components:
ITEM # DESCRIPTION PART NUMBER QTY
1. Piro sensor 1
2. 1” screws 1-1040 2
3. Plastic Anchors 1-1039 2
4. 1 5/8” drywall screw 1-1030 1
5. 3” drywall screw 1-1029 1
6. 7/8” spacer CAS-051155-1 1
7. 2” spacer CAS-051155-2 1
8. Butt connectors 1-1038 4
9. Corner molding CAS-041154 1
Components used when mounting on flat wall LOWER than 5’ 6”: 1, 2, 3 and 8
Components used when mounting on flat wall 5’6” or HIGHER: 1, 2, 3, 4, 6 and 8
Components used when mounting in corner 5’6” or HIGHER: 1, 5, 7, 8 and 9
Page 13