EVAX 25 User manual

Installation Manual: EVAX 25/50/100/150/200 Voice Evacuation System
NOTICE TO THE INSTALLER
This manual provides an overview and the installation instructions for the EVAX 25/50/100/150/200 Voice Evacuation Interface System.
All terminals are power limited and should be wired in accordance with the requirements of NFPA 70 (NEC), NFPA 101 (Life Safety
Code) and NFPA 72 (National Fire Alarm Code). Failure to follow the wiring diagrams in the following pages will cause the system to not
operate as intended. For further information, refer to the control panel installation instructions.
The module shall only be installed with listed control panels. Refer to the control panel installation manual for proper system operation.
1. Description
The EVAX 25/50/100/150/200 is a self contained amplier, tone generator, digital message repeater and supervisory interface. It
is designed to be used in conjunction with a UL listed Fire Alarm Control Panel (FACP) to provide a Listed Voice Evacuation Alarm
System.
The FACP provides all initiating circuitry and a signaling circuit to the EVAX 25/50/100. The EVAX 25/50/100 provides its own internal
supervision as well as supervision for its speaker lines. Any fault is reported back to the FACP. In normal standby the supervisory circuit
from the panel is connected to a matching EOLR. Should the EVAX 25/50/100 suffer an internal failure or should there be any fault on
the speaker line a contact would open and the FACP would report it as an open fault for that circuit.
The EVAX 25/50/100 is designed to be powered from 120 VAC at 60 Hz. The EVAX 25 will provide 25W to the speaker circuit. The
EVAX 50 will provide 50W. The EVAX 100 will provide 100W. Speakers may be 25 or 70 Vrms (jumper selected, 25V is factory set).
Note: Models may be supplied with transformers wired for 240 VAC for those regions where this is required. Please refer to Ratings
section for Primary Power differences.
MODELS: The EVX-25/50/100 are complete Voice Evacuation Modules, EVX-25E/50E/100E are complete modules with built-in tone
generators capable of operating as a stand-alone Voice Evacuation Systems with only tone and microphone amplication. They are not
equipped with power transformers or cabinets. The EVAX 25/25EM/50/50EM/100/100EM/150/150EM/200/200EM are complete Voice
Evacuation Panels. The EVX-50E/100E are capable of operating as slave ampliers when connected to the EVX-100 which supplies
source audio to the slaves. Different Model numbers are derived from the amplier sizes used together: These multiple amplier
congurations are factory setup and pre-wired. When using any EVX-25E/50E/100E refer to installation instructions 5403672.
EVAX 150 contains one (1) EVX-100, one (1) EVX-50E and two (2) speaker circuits
EVAX 200 contains one (1) EVX-100, one (1) EVX-100E and two (2) speaker circuits
EVAX 150E contains one (1) EVX-100E, one (1) EVX-50E and two (2) speaker circuits
EVAX 200E contains two (2) EVX-100E and two (2) speaker circuits.
The EVAX 100 / 200 are tested compliant with UL 464 520 Hz Low Frequency Signal for Sleeping Areas with the following:
Potter Signal Series: FASPKR, SPKSTR Gentex Series: SSPKCLP, SSPK24WLP System Sensor Series: SPCW, SPCR, SPR and
SPW
2. Installation and Wiring
Install equipment in a clean, dry environment, avoid installation where equipment could be subjected to vibration. Remove electronic
assemblies from the enclosure prior to any drilling or punching of the enclosure. Where possible, make all cable entries from the rear or
sides. Before making any modications to the enclosure, be certain that they will not interfere with assemblies or batteries
Install equipment adjacent to FACP or FACP Annunciator to ensure proper reporting and display of system Fault conditions.
1. Connect speaker lines to TB1 - 5(+) & 6(-), observe polarity and ensure all speakers are connected likewise. For Class "A" (Style
"Z")the returns are TB1 - 7(-) & 8(+).
2. Ensure that the microphone is attached to connector P2. If Microphone is not installed ensure that switch SN1 - 8 is in the OFF
position.
3. Attach the appropriate EOLR for the FACP to TB3 - 3 & 4 and TB3 - 5 & 6. The TB3 term 5 & 6 value must be placed at the end
of the speaker line as well. You must use EOLR value as specied in the FACP Manufacturer’s installation instructions for the
indicating appliance circuit. All accessory cards such as the EVX-ZM, EVX-SL8, EVX-IL8 or EVX-OL8 must be mounted within the
same cabinet or if mounted in a separate cabinet, be in the same room with all wiring run in conduit within 20 feet.
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 1 OF 8

INSTALLATION MANUAL: EVAX 25/50/100/150/200
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 2 OF 8
4. Connect FACP signaling circuit to TB1 - 3(+) & 4(-), Alarm Polarity (alarm polarity is shown).
5. Connect 120 VAC, 60 Hz, power to the white Terminal Block on the left side of the cabinet. Terminals are Hot / Neutral /
Ground, from left to right. Pre-wired to unit and chassis on opposite side of Terminal Block. Wire colors Black / White / Green
from left to right. Max. 10 AWG
6. Once power is on to the unit, connect battery wiring harness, Red (+) / Black (-). Observe polarity. Minimum battery size is
24V 7Ah. Maximum size to house in cabinet is 12Ah, battery box required beyond 12Ah (use two (2) 12V batteries connected
in series, see typical installation diagram). If the unit does not have its own batteries and relies on an external power supply
with battery back-up, ensure that switch SN1 - 7 is in the OFF position. NOTE: Wiring for batteries is Non Power-Limited. Care
must be taken to ensure that all Power-Limited wiring maintain a minimum spacing of ¼" from any Non Power-Limited wiring.
If batteries must be located in separate enclosure, it must be in the same room with a separate conduit run for battery wiring
only.
Once all power and circuits are connected, the Green LED will remain on to indicate that the EVAX 25 / EVAX 50 / EVAX 100 is
fully operational and all circuits are nominal.
7. Terminal Designations
TB1:
TER 1 & 2 - Power Input 24-32V AC/DC (Note 1, 4)
TER 3 & 4 - FACP Signal Circuit Input - 10mA max. (Alarm Polarity shown) (Note 1, 4)
TER 5 & 6 - 25/70 Vrms Speaker Loop Style Y/Z (Class "A"/"B" start) (Note 2, 4)
TER 7 & 8 - 25/70 Vrms Speaker Loop Style Z (Class "A" return) (Note 2, 4)
TB3:
TER 1 & 2 (Note 1, 4)
Optional FACP Supervisory Circuit (See
nstallation instructions page X diagram 2 for
details (32V - 0.4A max)). Factory set for
None - J1 (Installed)
Contact Ratings: 1A @30VDC
Connect to Resistive Load, Class II Power Or
Power Limited Sources Only. Interconnected
Equipment Must be in the Same Room and
Mounted Within 20'.
TER 3 & 4
FACP Signal/Supervisory Circuit EOLR
TER 5 & 6
Matching EOLR
TER 7 (Note 1, 3, 5)
General purpose output (pulls to circuit neg
on fault condition 32V - 0.2A max). Not for
Fire Protective Signaling use.
TER 8 (Note 1, 3, 5)
Trouble input +24 VDC 5mA
NOTES
1 - Intended for connection to Listed Class
2 - Class 3 (Power Limited) sources only
2 - Power Limited
3 - Non-Supervised
4 - Supervised
5 - Terminating equipment must be installed
in same room as EVAX 25/50/100
18
ON
OFF
Switch Network Detail
1
2
TB1
12 345678
1
2
3
4
5
6
7
8
MSG
GAIN
MIC
GAIN
FAULT
NORMAL
ALARM
YEL
GRN
RED
P2
SN1 SN2
J5
J1
P5
P8
P4
1
2
3
4
5
6
7
8
9
10
11
123
J2
70V 25V
TB2
LED 1
LED2
LED 3
LED 4
LED 5
J3
TB3
P9
P3
S1
DR
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AWG
Wire gauge determined by circuit load
TB2:
TER 1 - Circuit Neg
TER 2 (NOTE 1, 3)
Aux Audio Input
(0.5V nominal)
(1VRMS - 1mA max.)
TER 3 (NOTE 1, 3, 5)
PreAmp In/Out
(600 Ohm 0dBm)
TER 4 (NOTE 1, 3, 5)
Master - Programmable
+24VDC Active
Slave - +24VDC Input
TER 5 (NOTE 1, 3, 5)
Signal Active
Master - Out / Slave - In
TER 6 (NOTE 1, 3)
Aux Audio Enable
(+24V)(32V - 5mA max.)
TER 7 (NOTE 1, 3)
Aux Signal Activate
(+24V) (32V - 5mA max.)
TER 8 (NOTE 2, 3, 5)
Common Alarm Voltage +24V
condition (0.1A)
TER 9 (NOTE 2, 3)
Common Int V+ (+24V) disconnected in
alarm condition (0.1A)
TER 10 (NOTE 2, 3)
V+ (+24V 0.1A)
TER 11 (NOTE 5)
Mic PTT (+24V 0.1A)
P3/4: 14 Pin Connector Connection to
Expander Modules
P5: 10 Pin Connector HMX Connection
P8: I2C 10 Pin Connector EVX-ZM/SL8/
IL8/OL8

INSTALLATION MANUAL: EVAX 25/50/100/150/200
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 3 OF 8
Factory Default Switch/Jumper Settings:
SN1 SN2
1 = OFF 25V 1 = OFF
2 = OFF 2 = ON
3 = OFF 3 = OFF Std. Evac Message
4 = OFF Normal Op 4 = OFF
5 = OFF Do Not Use 5 = OFF Do Not Use
6 = OFF No AC Fault Delay 6 = ON Message On
7 = ON Battery connected 7 = OFF
8 = ON Mic connected 8 = ON
OPTIONS:
AUX +24VDC OUTPUT - TB2-4, 8, 9 & 10
These terminals provide a max. 200 mA of regulated 24VDC power for auxiliary functions. Do not exceed 200 mA load combined
on these terminals. For connection to Listed General Signal devices only (Non-Fire Protective Signaling applications). Terminal 4
activation is programmed in the system conguration. Standard conguration is programmed for TB2-4 to go active +24VDC under
these conditions: Aux Signal Active, Aux Audio Enable and Bell Circuit Active.
CONNECTION OF AN AUX AUDIO SOURCE - TB2-1 & 2
An aux audio source from additional paging equipment may be connected to the EVAX 25 / 50 / 100 to augment an existing paging
system. It is not intended for continuous signal input, but may be used for paging applications. For such an operation the Aux Audio
Enable input, TB2-6, must be powered from Int V+, TB2-9. This is to ensure that in the event of an alarm, the aux audio will not
override the evacuation signal. See Wiring Diagram 5 for connection detail.
OPTIONAL SUPERVISORY CIRCUIT - TB3-1 & 2
In place of normal supervision via the signaling circuit, an alternate method may be employed using any supervisory circuit from the
FACP. Connection would be made to Terminal Block 3, Ter. 1 and 2. This would provide a normally closed connection to the EOLR
on Ter. 3 and 4. The relay contact in the circuit will open upon any trouble condition and report an open circuit trouble to the FACP.
NOTE: Jumper shorting blocks A and B must be removed from J1 if a circuit is to be connected in this manner. See Optional
Supervisory Circuit Application (Wiring Diagram 2) for connection detail.
OPERATION
In normal standby the Green LED will remain on.
In alarm condition the Red LED will remain on as long as the unit is in alarm. Green LED will modulate with the audio level.
Default Factory Alarm Sequence settings: (Alarm Tone - 2 cycles Temporal Whoop, Message On - 3 Repeats)
Alarm Tone / Digital Message plays / Alarm Tone / Digital Message plays / Alarm Tone / Digital Message plays / unit reverts to
Alarm Tone until alarm condition is cleared. If the Mic is keyed it will override both the tone and the message so a direct broadcast
may be made. If this occurs during the initial sequence the digital message will be reset and will not repeat. When the Mic is keyed
or when the message is played the Green LED will dim. The intensity of the Green LED will vary with the level of the broadcast
audio. Under a fault condition, the Yellow LED will remain on. The Green LED will ash. The number of ashes display a code
depending on the specic type of fault. When there is a fault condition the contact connecting the FACP signal circuit to the
EOLR will open indicating the fault to the panel which will provide annunciation. During a ground fault condition, Yellow LED 4 will
illuminate.
Electrical Ratings:
EVAX 25/25E EVAX 50/50E EVAX 100/100E
Primary Input Voltage 120 Vac @ 60 Hz 120 Vac @ 60 Hz 120 Vac @ 60 Hz
Primary Input Current 0.8 A @ 120 Vac 0.5 A @ 120 Vac 1.0 A @ 120 Vac
*Battery Input Current Standby 0.18 A / 1.1 A 0.15 A / 1.0 A 0.16 A / 1.1 A
Battery Input Current Alarm 1.1 A / 2.5 A 0.8 A / 1.1A 0.6 A / 2.0 A
Output power 25 Watt 50 Watt 100 Watt
Freq. Response 800 - 2800 Hz 400 - 4000 Hz 400 - 4000 Hz
Output Voltage 25/70 Vrms Selectable 25/70 Vrms Selectable 25/70 Vrms Selectable
Battery Charging Current 800mA 800mA 800mA
Minimum Battery Size 24V 7 AH 24V 7 AH 24V 7 AH
Maximum Battery Size 24V 18 AH 24V 18 AH 24V 18 AH
Battery Type is two (2) 12V Gel Cell (in Series) for all products.
For units wired with 240 VAC Transformers the following ratings apply:
Do Not Use
2 Cycles
Temporal Tone
3 Message
Repeats
J1 A/B:
1 - 2 = SHORT
J2
25 VRMS 2 - 3 = SHORT
70 VRMS 1 - 2 = SHORT
To change output voltage
Power unit down, move J2 to new
position, change SN1-1 to match.
J3
2 - 3 = SHORT R
Shorting block must be in the R position
J5
1 - 2 SHORT = Ground Fault Enable

INSTALLATION MANUAL: EVAX 25/50/100/150/200
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 4 OF 8
EVAX 25 / 25E EVAX 50 / 50E EVAX 100 / 100E
Primary Input Voltage 240 Vac @ 50 Hz 240 Vac @ 50 Hz 240 Vac @ 50 Hz
Primary Input Current 0.4 A @ 240 Vac 0.27 A @ 240 Vac 0.53 A @ 240 Vac
Battery Standby Operating Time: 24 - 72 Hours standby, 15 Minutes in Alarm
72 Hour standby is only recommended for EVX-100 / 100E with 24 AHr. batteries. Installer must ensure that Battery Standby current does not exceed 0.25A in
order to ensure reliable operation.
Output Protection: Power Limited, Open and Short Circuit Protected
*Battery input current measurements are determined by test conditions. Two values are shown. First value reects the unit with a full speaker load and no auxiliary load.
Second value reects the unit with a full speaker load and a full auxiliary load of 0.5A. Your actual load will vary depending on which and how many auxiliary devices,
ie...Zone Splitter, Remote Mic, Relays,...etc., are used. Insure that any current draw from an aux device is added into your nal battery calculation.
Input current measurements are determined by test conditions under UL 1711. Sine represents measurements made while the unit produces a continuous non-distorted
sine wave of 1 KHz into the rated load of 25 / 50 / 100W at rated output voltage. Alarm is the average current the unit experiences delivering an alarm signal, Temporal
Whoop, to the rated load. Standby is the current draw of the unit with all normal power on and aux., terminals fully loaded. Battery Standby is current draw from the
batteries on loss of power and otherwise normal standby.
TESTING
Per NFPA 72 Chapter 7, 100% system test is required, at a minimum, annually. Additional testing may be required by the Local
Jurisdiction.
EVAX 25/50/100 Typical Installation
+F
I
R
E
E
O
LEOLR
F
I
R
E
F
I
R
E
F
I
R
E
F
I
R
E
EOL
56 78
TB1
Standard Life Safety Speakers, Strobes connected and powered separately.
Break wire to maintain supervision. Do not loop wire around speaker terminals.
Ground faults are indicated at 10K impedance or less.
CLASS “A” (Style “Z”)
WIRING
Battery Wire Harness
Supervised - Non Power Limited
-
+
12V
Battery
-
+
12V
Battery
FACP
EOLR E
O
L
E
O
L
MATCHING
EOLR
(SPEAKER
CIRCUIT)
XFMR
CLASS “B” (Style “Y”)
WIRING
Supervised - Power Limited
Supervised - Power Limited
Supervised - Power Limited
SIGNAL
CIRCUIT
12-32VDC
ALARM POLARITY
Red
Black
Jumper Wire Is Provided
INPUT POWER
Supervised - Power Limited
_
FIRE ALARM CONTROL PANEL
NAC Circuit Must be steady to play Voice message
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AWG
Wire gauge determined by circuit load
CAUTION:
Break wire to maintain supervision.
Do not loop wire around speaker terminals.
1
2
TB1
12 345678
1
2
3
4
5
6
7
8
MSG
GAIN
MIC
GAIN
FAULT
NORMAL
ALARM
YEL
GRN
RED
P2
SN1
SN2
J5
J1
P5
P8
J8
P4
1
2
3
4
5
6
7
8
9
10
11
123
J2
70V 25V
TB2
LED 1
LED2
LED 3
LED 4 LED 5
J3
TB3
P9
P3
S1
DR
HNG
120 VA C
10-20 AWG
Note:
Panels may be supplied with
transformers wired for 240 V
AC for
those regions where this is required.
Please refer to Ratings section for
Primary Power dif
ferences.

INSTALLATION MANUAL: EVAX 25/50/100/150/200
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 5 OF 8
TB1
12 345678
TB3
1
2
3
4
5
6
7
8
TB2
1
2
3
4
5
6
7
8
9
10
11
Input Power connection is
Non-Power Limited.
DO NOT
route any Power
Limited wiring within ¼" of
Input cabling.
ALL wiring from terminal
blocks is Power Limited.
Use K.O. at top or side of
cabinet for wire routing.
Battery cabling is Non-Power
Limited.
DO NOT
route any Power Limited
wiring within ¼" of Input cabling.
12V 7AHr.
Battery
12V 7AHr.
Battery
XFMR
EVAX 25/50/100 Cabinet Layout
EVAX 25/50/100 Optional Supervisory
Circuit Application
+
E
O
L
ZONE
EOLR
E
O
L
MATCHING
EOLR
(SPEAKER
CIRCUIT)
Supervised - Power Limited
SIGNAL
CIRCUIT
12-32VDC
ALARM POLARITY
_
FIRE ALARM CONTRL PANEL
TB1
12 345678
TB3
1
2
3
4
5
6
7
8
TB2
1
2
3
4
5
6
7
8
9
10
11
123
J2
SUPER
VISORY
ZONE
FIRE ALARM CONTROL PANEL
TO Next Device or EOLR
NORMALLY
CLOSED
COMMON
TROUBLE
CONTACT
*
NOTE: Jumper shorting blocks on J1
must be removed for this application.
*
Power and Speaker connections remain
unchanged.
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AW
G
Wire gauge determined by circuit load
NAC Circuit Must be steady to play Voice message
CAUTION:
Break wire to maintain supervision.
Do not loop wire under terminals.
1
2
J1

INSTALLATION MANUAL: EVAX 25/50/100/150/200
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 6 OF 8
EVAX 25/50/100
Addressable System Application
EVAX 25/50/100
Multiple Unit Connection Detail
E
O
L
MONITOR
MODULE
EOLR E
O
L
MATCHING
EOLR
(SPEAKER
CIRCUIT)
Non Supervised - Power Limited
ADDRESSABLE
CONTROL MODULE
TB1
12 345678
TB3
1
2
3
4
5
6
7
8
TB2
1
2
3
4
5
6
7
8
9
10
11
123
J2
NORMALLY
CLOSED
COMMON
TROUBLE
CONTACT
*
Supervised - Power Limited
ADDRESSABLE
MONITOR MODULE
ADDRESSABLE
LOOP
N.O.
CLOSES FOR
ALARM ACTIVATION
24VDC
0.01A max
Addressable Modules
must be located within 20'
and interconnection must
be in conduit.
NOTE: Jumper shorting blocks on J1
must be removed for this application.
*
Power and Speaker connections remain
unchanged.
NAC Circuit Must be steady to play Voice message
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AWG
Wire gauge determined by circuit load
1
2
J1
Non Supervised - Power Limited
NOTE: Switch SN1-8 must be in the OFF
position for all units without Mic attached. All Power, Supervisory and Speaker
connections remain unchanged.
*
TO ADDITIONAL
EXPANDER UNITS
TB1
12 345678
TB3
1
2
3
4
5
6
7
8
MESSAGE
GAIN
MIC
GAIN
FAULT
NORMAL
ALARM
YEL
GRN
RED
TB2
1
2
3
4
5
6
7
8
9
10
11
P2
S1
SN1
123
J2
J1
1
2
14 pin ribbon cable
(factory supplied) may be used
in place of hard wired connections
*
EVX-25E, EVX-50E, EVX-100E
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AWG
Wire gauge determined by circuit load
TB1
12 345678
1
2
3
4
5
6
7
8
MSG
GAIN
MIC
GAIN
FAULT
NORMAL
ALARM
YEL
GRN
RED
P2
SN1
SN2
J5
1
2
J1
P5
P8
J8
P4
1
2
3
4
5
6
7
8
9
10
11
123
J2
70V 25V
TB2
LED 1
LED2
LED 3
LED 4 LED 5
J3
TB3
P9
P3
S1
DR
#20 AWG min.
#28 AWG min.

INSTALLATION MANUAL: EVAX 25/50/100/150/200
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 7 OF 8
EVAX 25/50/100
Aux Audio Enable Connection Detail and Switch Settings
Note: Default settings comply with UL 864 AND NFPA 72 operational requirements. Before changing any settings,
verify compliance with Local Authority having Jurisdiction.
TB1
12 345678
TB3
1
2
3
4
5
6
7
8
TB2
1
2
3
4
5
6
7
8
9
10
11
123
J2
Customer Provided
Dry Contact
N.O.
Aux Audi
o
Input
Aux Audio
Enable
Interupted V+
J1
1
2
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26
AWG
Wire gauge determined by circuit load
ON = 1 (DOWN)
OFF = 0 (UP)
Switch Network Detail
18
SN1
SN2
P8P9
S1
SN1 Default = 0/0/0/0/0/0/1/1
SN2 Default = 0/1/0/0/0/1/0/1
SW 1/2 Sets the number of cycles that the Temporal
tone plays before and in between repeats of
the message.
4 Settings: 0/0 No delay
1/0 4.5 second delay (1 Temporal cycle)
0/1 9 second delay (2 Temporal cycles)
1/1 13.5 second delay (3 Temporal cycles)
SW 3 Selects which Evac message plays.
2 Settings: 0 Standard Evac message
1 Std. Evac message w/o elevators
SW 4 Selects which Evac tone plays.
2 Settings: 0 Standard Temporal Whoop
1 Optional Temporal 520 LoFreq Signal
SW 5 Do Not Use
SW 6 Sets the message play.
2 Settings: 0 Message off
1 Message on
SW 7/8 Sets the number of times the message
plays.
4 Settings: 0/0 1 play
1/0 2 plays
0/1 3 plays
1/1 Continuous plays
SW 1 Sets the output voltage
2 Settings: 0 25V
1 70V
SW 2 / 3 / 5 Do Not Use
SW 4 Enables Fault Code and Walk Test Message.
2 Settings 0 Normal Op
1 Fault Code/Test Msg.
SN1-4 has a dual function. From Normal Standby, putting this switch in the ON
position will automatically generate a Flash Code for the last Fault condition
that the unit experienced. This can be cleared out by depressing the Reset
Switch. WIth the Last Fault cleared, SN1-4 in the ON position will now enable
the Walk Test Message to play when the unit is put into an Alarm condition.
Please Note: In Walk Test mode a steady Yellow Fault LED is active and a
Fault condition is reported to the FACP.
SW 6 AC power failure report delay.
2 Settings: 0 No delay
1 3 hour delay
SW 7 Batteries
2 Settings: 0 Batteries are not connected
1 Batteries are connected
SW 8 Microphone.
2 Settings: 0 Microphone is not connected
1 Microphone is connected

INSTALLATION MANUAL: EVAX 25/50/100/150/200
5403670 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 8 OF 8
EVAX 25/50/100
Trouble Codes
When a unit goes into a Trouble Condition, the Yellow LED wil remain on until the trouble is cleared. The Green LED will ash
a Code to indicate the type of Trouble Condition. There will be a pause between repeats of the code. When multiple Trouble
Conditions occur at the same time, the codes will add together. The number of ashes and associated Trouble Condition are listed
below.
Code Trouble Code Trouble
1 Power Failure 8 Amplier Trouble
2 Open Speaker Circuit 16 Microphone Trouble
4 Shorted Speaker Circuit 32 Battery Trouble
*6 External Trouble/Ground Fault
* 6 ashes typically indicates “External Trouble”, such as an EVX-RM. If LED 4 is on, the 6 ash indicates a ground fault. If both a
ground fault condition and an external trouble occur simultaneously, the fault codes will not combine for 12 ash.
EVAX 25/50/100
End of Line Resistors
NOTE 1: If the Fire Alarm Signal Circuit requires a 4.7K end-of-line resistor, then R1 must be a 4.7K. Normally, this resistor is
connected to the Signal Circuit through a closed Common Trouble contact. When the EVAX 25/50/100 goes into Trouble, the
contact opens, producing an "Open" on that Signal Circuit and notifying the FACP.
NOTE 2: R2 and R3 must match each other. R2 "Sets" what the value of R3 needs to be. R2 tells the EVAX 25/50 what to expect
on the end of the Speaker Circuit. If a Speaker EOLR (R3) already exists, simply match that value for R2.
The value for R2 may vary from 1.0K to 100K Ohms depending on the value used by a connecting FACP for supervision. Speaker
circuit will indicate a Fault any time the impedance of the circuit changes by 50% of the Set EOLR value.
EVAX 25 / 50 / 100
SIG
CKT
FACP EOLR
TB1
TB3
3
3 4
5 6
4
5
6
R1
R2
R1
(See NOTE 1) End of line
resistor for F
ACP Signal Circuit.
SET EOLR
R2 (See NOTE 2) Sets the
value of the end of line resistor
for the Speaker Circuit.
R3
End of line resistor for Speaker Circuit
.
(See NOTE 2)
SPEAKER EOLR
R3
NOTE: These connections
are internal. Do NOT make
these connections.
*