AGS Parksafe Control Panel Instruction manual

Installation, Operation & Maintenance ParkSafe Controller
Rev: 20 1
ParkSafe Controller

Installation, Operation & Maintenance Manual
Please read this manual carefully and retain for future use.
For specific requirements that may deviate from the information in this guide –contact your supplier.
American Gas Safety LLC
www.americangassafety.com

Installation, Operation & Maintenance ParkSafe Controller
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Content
Important Warning Statements ...................................................................... 3
Installation ....................................................................................................... 4
Typical Application & Location..........................................................................................4
ParkSafe Detector Placement Plan ...................................................................................5
Mounting & Cabling ..........................................................................................................5
Electrical Connections ......................................................................................................6
Wiring AGS ParkSafe Detector(s) .....................................................................................7
ParkSafe Detector ‘ID’ Switches .......................................................................................9
120ohm Termination Resistance.......................................................................................9
Access Configuration Settings..........................................................................................9
Configuration Settings Explained ....................................................................................10
Factory Set Condition .....................................................................................................10
Operation....................................................................................................... 11
First Power Up ................................................................................................................11
Alarm Indications ............................................................................................................11
Temperature Indication ...................................................................................................11
Silence & Reset Buttons .................................................................................................11
Gas Detection Status Information ...................................................................................12
Detector Status Meaning ................................................................................................12
ParkSafe Detector Alarm Set Points ...............................................................................12
Modbus Communication Rescan ....................................................................................12
Maintenance .................................................................................................. 13
Cleaning ..........................................................................................................................13
Manual Circuit Simulation Test .......................................................................................13
Annual Service Message ................................................................................................13
End of Operational Life (EOL) .........................................................................................13
Bump Testing (Gas Response Check) ............................................................................14
Bump Test Procedure.....................................................................................................14
Test Record.....................................................................................................................16
Specification.................................................................................................. 19

Installation, Operation & Maintenance ParkSafe Controller
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Important Warning Statements
Where this symbol is used, the manual must be consulted to understand the nature of potential hazards and how to avoid them.
Ensure that this manual is read and understood before installing / operating / maintaining the equipment.
The information contained within this manual should be referenced for typical installation and operation only.
For site specific requirements that may deviate from the information in this guide –contact your supplier.
If the equipment is used in a manner not specified by the manufacturer, the safety/protection provided by the equipment may be
impaired.
Isolate the equipment from all hazardous live power sources before opening the cover.
This device is designed for indoor operation only.
It is recommended that this device be commissioned upon installation and serviced annually.
This equipment is designed to detect carbon monoxide and nitrogen dioxide when PARKSAFE detectors are used. Sold
separately.
It is NOT designed to detect smoke, fire or other hazards and should NOT be used as such.
This device provides early warning of the presence of nitrogen dioxide or carbon monoxide when PARKSAFE detectors are
connected, usually before a healthy adult would experience symptoms.
This early warning is possible provided your alarm is located, installed, and maintained as described in this manual.
This device requires a continual supply of electrical power –it will not work without power.
This device should not be used to substitute proper installation, use and / or maintenance of fuel burning appliances including
appropriate ventilation and exhaust systems.
This device does not prevent nitrogen dioxide or carbon monoxide from occurring or accumulating.
Actuation of your alarm indicates the presence of dangerous levels of NO2or CO.
Seek fresh air supply and contact your local gas emergency service should you suspect a gas leak.
This device may not fully safeguard individuals with specific medical conditions.
If in doubt, consult a doctor / physician.
Your product should reach you in perfect condition, if you suspect it is damaged, contact your supplier.
Concentrations of alcohol found in many products may damage, deteriorate, or affect the gas sensing elements such as wine;
deodorants; stain removers and thinners. Other gases and substances to avoid are corrosives (i.e., chlorine & hydrogen chloride);
alkali metals; basic or acidic compounds; silicones; tetraethyl lead; halogens and halogenated compounds!
Manufacturer’s Warranty
Warranty coverage: The manufacturer warrants to the original consumer purchaser, that this product will be free of defects in material
and workmanship for a period of three (3) years from date of purchase.
The manufacturer’s liability hereunder is limited to replacement of the product with repaired product at the discretion of the manufacturer.
This warranty is void if the product has been damaged by accident, unreasonable use, neglect, tampering or other causes not arising from
defects in material or workmanship. This warranty extends to the original consumer purchaser of the product only. Warranty disclaimers:
Any implied warranties arising out of this sale, including but not limited to the implied warranties of description, merchantability and
intended operational purpose, are limited in duration to the above warranty period. In no event shall the manufacturer be liable for loss of
use of this product or for any indirect, special, incidental, or consequential damages, or costs, or expenses incurred by the consumer or
any other user of this product, whether due to a breach of contract, negligence, strict liability in tort or otherwise. The manufacturer shall
have no liability for any personal injury, property damage or any special, incidental, contingent or consequential damage of any kind
resulting from gas leakage, fire, or explosion. This warranty does not affect your statutory rights. Warranty Performance: During the
above warranty period, your product will be replaced with a comparable product if the defective product is returned together with proof of
purchase date. The replacement product will be in warranty for the remainder of the original warranty period or for six months –whichever
is the greatest.
Information on waste disposal for consumers of electrical & electronic equipment.
When this product has reached the end of its life it must be treated as Waste Electrical & Electronics Equipment (WEEE). Any WEEE
marked products must not be mixed with general household waste, but kept separate for the treatment, recovery and recycling of
the materials used. Please contact your supplier or local authority for details of recycling schemes in your area.
At the end of their working life, electrochemical sensors should be disposed of in an environmentally safe manner. Alternatively, they can
be securely packaged and returned to AGS clearly marked for disposal. Electrochemical sensors should not be incinerated as this may
cause the cell to emit toxic fumes.

Installation, Operation & Maintenance ParkSafe Controller
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Installation
Typical Application & Location
Refer to your PARKSAFE Detector manual for important information regarding coverage, location and positioning including areas
and conditions to avoid!
Installation must be in accordance with recognised standards in the country concerned, for North America, NEC / CEC regulations
should be followed!
Access to the interior of the controller, when carrying out any work, must only be conducted by trained personnel!
Before carrying out any work ensure local regulations and site procedures are followed!
The use of sound strobes is highly recommended!
Consult with local codes for the specific requirements!
In parking structures, CO and NO2 are two of the most abundant airborne contaminants and poses significant
safety concerns. The CO and NO2 levels must be controlled or ventilated when concentrations approach
hazardous levels. The controller is designed for installation into car parking facilities and enclosed garages
paired with AGS ParkSafe detectors (Nitrogen Dioxide and Carbon Monoxide) that will be linked via Modbus
RTU protocol back to the controller and monitor the detectors in numbers up to 16 (per controller) and
automatically control ventilation systems according to gas levels and an optional temperature level. The
ParkSafe controller monitoring system can activate both the exhaust fan(s) and the air intake device(s) such as
outside air louvers/dampers and make up air units
The ParkSafe will make or break a dry contact internally on relay terminals [Output-1] and a second contact on
[Output-2]. This is to have a live feed to the ventilation system wired through the contact so that the ParkSafe
can activate ventilation systems; this can be either via a direct live feed or via a run signal. Another output relay
will energise after [Output-2] has been active for an extended period. This is used for a link to a BMS or other
external indication device. The controller also has a 0-10vdc output to allow the controller to drive VFD’s based
on gas level outputs.
Addressable AGS ParkSafe detectors are daisy-chained through a RS485 RTU communication protocol to the
controller. The controller must be located out of reach of the public, preferably located inside, close to the
motor control centre or in connecting offices. Place the controller in accordance with applicable regulations.
Easy accessibility is recommended for both status observation and alarm purposes.

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ParkSafe Detector Placement Plan
The relative density of carbon monoxide compared to air of carbon monoxide is 0.957 (AIR =1). The carbon
monoxide will disperse evenly in the air. The carbon monoxide monitors must be located as specified by your
region’s building code. If not specified contact your local AGS representative. Detection of nitrogen dioxide is
done where a significant quantity of diesel engines is typically located such as train stations, bus and truck
maintenance garages, rapid transit authorities, car dealerships, ambulance bays, loading docks and diesel-
powered vehicle parking structures. ParkSafe detectors should be mounted where a potential hazard of gas is
most likely to be present. The following points should be noted when locating gas sensors. When locating
detectors consider
•The possible damage caused by natural events e.g., Rain or flooding.
•Ease of access to the gas detector for functional testing and servicing.
•How gas may behave due to natural or forced air currents.
The quantity of sensors is determined by the following rules of thumb:
1. The radius of coverage is 50 feet (15.2 metres) per detector or 7,580
square feet (704.2 square metres).
2. Use open interior support columns as much as possible to maximize the radius of coverage.
3. Each level of the parking structure must be totally covered without overlapping the coverage of the sensors.
Mounting & Cabling
Where cable glands/conduits are used for wire entry, use no bigger than 20mm (3/4”) separated by at least 20mm (1/2”)! Any parts
that form part of the connections/installation must have a minimum fire-retardant rating of UL 94 V-1!
Restrain the hazardous live wiring from accidental loosening to prevent wires from moving after installation and touching parts of
opposite polarity or at low voltages!
Designed for surface mounting, it must be installed by a licensed, insured contractor!
Carefully remove the front cover from the unit by unscrewing the four M6 hex bolts located at each corner.
To do this –use the socket wrench provided.
Ensure the wall surface is solid and flat to prevent base distortion and mark the four 6mm (0.236”) screw holes
located on the back of the enclosure to the wall.
Use a suitable screw/bolt (M4x30min) and appropriate expanding plug to fix the back of the enclosure to the
wall surface. Drill out as necessary ensuring all swarf is removed from the box and holes have smooth edges.
After executing the mounting and the electrical connections –replace the front cover and insert the security
caps over the four M6 hex bolts.

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Electrical Connections
Access to the interior of the controller, when carrying out any work, must be conducted by a competent person!
Where cable glands are used for wire entry, use no bigger than 20mm (3/4”) separated by at least 20mm (1/2”)!
Any parts that form part of the enclosure - connections/installation must have a minimum fire-retardant rating of UL 94 V-1!
External wiring routed through the ‘volt free’ relays (Output 1 & 2, Alarm and Damper) require double insulated wiring for safety!
Be careful when creating access for cables –Damage to circuit boards will void any warranty!
Before carrying out any work ensure local regulations and site procedures are followed!
For Modbus communications, a shielded cable is used!
For field connections use wires suitable for at least 90°C (194°F)
Isolate the equipment from all hazardous live power sources before opening the cover!
A switch or circuit breaker must be included in the installation! It must be suitably located and easily reached to allow for
disconnection of the equipment! It must be marked as the disconnecting device of the equipment!
If you are encountering noise or irregular problems with a Modbus link, the problem is likely related to grounding, incorrect
shielding or wiring mains power next to Modbus wiring.
1. POWER/ LINE IN.
The ParkSafe controller requires a power supply of 100-120Vac using a 3A switched fused spur. When mains
line, power is connected to the controller, a red LED will illuminate on the front of the controller (AGS Logo).
2. OUTPUT-1.
Switches when a ParkSafe detector reaches ‘pre-alarm’ status. The [0-10v Output] will send 5v signal.
3. OUTPUT-2.
Switches when a ParkSafe detector reaches ‘alarm’ status. The [0-10v Output] will send a 10v signal.
4. ALARM.
Switches following the [OUTPUT 2] relay when a ParkSafe detector remains in alarm status.
A delay time of 5,10,15,20 or 25 minutes is selectable in the system configuration settings.
5. DAMPER.
Switches together with either [Output-1], [Output-2] or [Alarm] relays - selectable in the system settings.

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6. DETECTOR CHAIN.
24Vdc power and Modbus data connections to ParkSafe detectors.
Up to sixteen (16) ParkSafe detectors wire in series (daisy chain) up to approx. 500 yards per cable run from
the controller depending on chain configuration and wire type/condition.
7. SHEILD.
For Modbus communication, a shielded and twisted pair cable is used. The shielding can be of two types:
braided [mesh of thin conducting wires] or foil (consisting of a thin sheet of metal covering the twisted wires).
To ground detectors the shield connects to the dedicated [Shield] terminals.
8. SOUNDER/ STROBE.
This relay output (24vdc) is for external sounder alarms/ strobe lighting and will activate on alarm.
9. 24VDC.
This is a permanent 24Vdc power output for external auxiliary devices. Max output: 200mA.
10. 0-10V OUTPUT.
This output signal sends either zero or 2V under normal operating conditions –selectable in the settings menu.
5V signal when [OUTPUT 1] relay switches. 10V signal when [OUTPUT 2] relay switches.
Wiring AGS ParkSafe Detector(s)
If you are encountering noise or irregular problems with a Modbus link, the problem is likely related to grounding, incorrect
shielding or wiring mains power next to Modbus wiring.
Reversing the [D+] and [D-] connections of any device can lead to the whole system to stop working owing to reverse polarity
found on the terminals.
Detectors should be grounded to limit the effects of R/F & EMC interference by connecting shield wires to shield terminals!
Ensure the [120-ohm chain termination resistor] switch on at each end of a cable run to limit noise!
Detectors connect to either [IN] or [OUT] terminal sets!
Consider the 24vdc power voltage drop due to cable resistance when connecting multiple detectors over long distances!

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Power and Modbus data are wired between detectors with the first connected to a ParkSafe controller
[Detector Chain] terminal. If using a shielded wire (recommended) then connect the shield to [Shield Wire]
dedicated terminals.
For Modbus communications, a shielded cable is used.
The shielding can be of 2 types: braided [mesh of thin conducting wires] or
foil (consisting of a thin sheet of metal covering the twisted wires).
One example of such cable is BELDEN 3082A.
Up to sixteen (16) ParkSafe detectors can be connected, chained in a parallel ‘daisy chain’ method up to
approx. 545 yards from the controller depending on chain configuration, wire type and condition. Any other
way may cause issues or damage to the overall system.
It is recommended that the cable of same color should be used to connect all [D+] terminals together and
similarly cable of same color is used to connect all [D-] terminals together.
Single chain example.
Split chain example

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ParkSafe Detector ‘ID’Switches
All detectors are factory set to ID 1!
We recommend a plan, map and/or marking the detector enclosures detailing ID and location!
ID Switches must be configured for each detector to receive and display accurate data!
When wiring multiple detectors, it is important to identify each detector installed for
the controller to receive and display accurate data corresponding with the correct
device. The ID configuration diagram is printed on the ParkSafe detector circuit
boards for quick reference as shown opposite. All detectors are factory set to ID1.
120ohm Termination Resistance
Signal communication issues may occur where the bus length is too long, high baud rates
are used, or signal reflections are occurring. To avoid this, terminating at each end of a
detector chain may help the quality of the data signal by turning on the 120-ohm terminal
resistor switch.
If a split chain is used, terminate the last detector in each chain. If a single chain is used,
terminate the first device (ParkSafe Controller) and last device (ParkSafe Detector).
Split chain Single chain
Access Configuration Settings
When changes are made –turn the settings switch off and the controller will automatically restart!
Access to the interior of the controller, when carrying out any work, must be conducted by a competent person!
Before carrying out any work ensure local regulations and site procedures are followed!
Turn on the [Settings] switch located on the display circuit board. The screen will display the settings menu.
The ParkSafe controller has a touch screen, which allows the engineer/user to configure the system.
Adjust the screen brightness Change/select option
(Press or slide the cursor up and down) (Press the blue option box or press and hold)

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Configuration Settings Explained
FUNCTION
OPTION
Explanation
Auto Start
- ON
- OFF
In the event of an unscheduled power loss/outage - the PARKSAFE controller will
automatically restart when power is restored, or not.
0-10V Minimum Value
- 0 or 2V
0-10V terminal output under normal / safe conditions.
Alarm Time Delay
- 5 to 25
Time (minutes) for alarm relay to switch when detectors reach alarm status.
(Following second relay Output 2). 5, 10, 15, 20 or 25minutes,
Damper Follows
- Output 1
- Output 2
- Alarm
The Damper relay output can switch together with either [Output-1], [Output-2] or the
[Alarm] relays.
Temperature Alarm
- >68 to 86°F
- Off
All Relays except Alarm will switch when the temperature exceeds the selected value.
Select Off to disable function. Relays switch back when the temperature reaches 4°F
below selected threshold.
Factory Set Condition
Auto Start
- ON
Controller will restart following an unscheduled power loss/outage.
0-10V Minimum Value
- 0V
No voltage output under normal condition status.
Alarm Time Delay
- 5
Following Output 2 relay switching, the Alarm relay will activate after five (5) minutes.
Damper Follows
- Output 1
Damper relay switches with [Output 1] relay.
Temperature Alarm
- Off
Temperature alarm disabled.

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Operation
First Power Up
Upon connecting mains power, the ParkSafe controller will ‘warm up’ for approximately one minute. During this
time, the screen will display an ‘initialising’ message. After the controller has initialised, the system will begin
searching and establishing signals with any connected ParkSafe Detectors.
Alarm Indications
System OK
System under normal/safe operating condition.
▪All outputs normal/off
System in ‘Pre-Alarm’ condition
When gas levels reach pre-alarm values.
▪Output-1 On
▪Damper (Selectable On/Off)
▪0-10V output: 5v
System in ‘Alarm Delay’ condition
When gas reaches dangerous alarm values.
▪Output-1 On
▪Output-2 On
▪Damper (Selectable On/Off)
▪0-10v output: 10v
System in Alarm condition
Gas levels beyond the alarm delay condition.
▪Output-1 On
▪Output-2 On
▪Alarm On
▪Damper On
▪0-10v output: 10v
▪Gas detector ID shown
▪Internal buzzer will sound
Temperature Indication
All outputs will remain active until the temperature (monitored by ParkSafe detectors drops below 4°F of the specified threshold –
adjustable in the configuration settings.
Temperature Status & Icon*
Temperature has exceeded pre-set value.
▪Output-1 On
▪Output-2 On
▪Damper On
▪0-10v output: 10v
Silence & Reset Buttons
To silence the internal buzzer in alarm –press the Silence button on the front of the controller.
This will also silence any external audio strobe/sounders connected to the controller.
If the system reaches alarm condition –the controller will need resetting when the gas levels return to a safe
concentration. Check the detector status to identify the gas detected and if levels have returned to a safe
condition - reset the system.

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Gas Detection Status Information
To access detector status screens, press the ‘Gas Detection’section on screen any time.
Switch between pages by touching the relevant page button at the bottom of the screen.
Each page will display up to four ParkSafe detectors:
a. The ID configured via switches on each detector board.
b. The unique serial number for that detector.
c. The target gas that detector is monitoring.
d. The status of gas levels, errors, and messages.
e. The concentration value of gas detected.
To return to the main screen, press the home button on screen.
Detector Status Meaning
GOOD
oGas levels are safe / No error conditions.
PRE-ALARM
oGas detected has reached pre-alarm levels.
ALARM
oGas detected has reached alarm levels.
FAULT
oGas sensor module has an issue (Removed or not properly installed).
END OF LIFE
oThe gas-sensing element has reached the end of its expected lifecycle.
SERVICE
oGas sensing element requires annual periodic bump test.
-- X --
oDetector signal lost, not installed or not configured correctly.
ParkSafe Detector Alarm Set Points
Detector Type
Pre-Alarm
Alarm
▲Rising alarm
ppm (Parts per Million)
Carbon Monoxide (CO)
▲25ppm
▲ 100ppm
Nitrogen Dioxide (NO2)
▲0.7ppm
▲2.0ppm
Modbus Communication Rescan
At any time, the user can rescan and refresh the Modbus communication data if there is a bad connection in
the chain by pressing the icon on screen.
When pressed the system will search for all signals connected to the controller i.e., gas detectors
without the need to reset the system.

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Maintenance
Cleaning
Concentrations of alcohol found in many products may damage, deteriorate, or affect the gas sensing elements such as wine;
deodorants; stain removers and thinners. Other gases and substances to avoid are corrosives (i.e., chlorine & hydrogen chloride);
alkali metals; basic or acidic compounds; silicones; tetraethyl lead; halogens and halogenated compounds!
Keep your ParkSafe controller and detectors in good working order
•Remove any dust/debris from the outer enclosures regularly using a slightly damp cloth.
•Never use detergents or solvents to clean your device(s).
•Never spray air fresheners, hair spray, paint or other aerosols near the detectors.
•Never paint the device(s). Paint will seal vents and interfere with the equipment.
Manual Circuit Simulation Test
Access to the interior of the detector, when carrying out any work, must be conducted by a competent person!
This circuit test does not check the gas sensing element itself!
When the test button on the ParkSafe detector circuit board is pressed and held, it will simulate an open circuit
to ensure all configured systems, outputs, alarms, indications, and other external devices operate as intended
in response to dangerous levels of gas.
When the button is released –the test sequence will terminate and return to normal operation.
Annual Service Message
The annual service message timer will begin after five (5) hours of continuous power irrespective of whether the system is then
used intermittently!
A service message will appear on the ParkSafe controller home screen after one year of any connected
ParkSafe detector operation. The detector will still operate during this time, but you should contact your
supplier immediately.
We recommend that the system is serviced/bump tested at least annually from the date of installation for
optimum performance and protection due to sensitivity drifts. Enter the status screens on the controller to
determine if the ParkSafe detector requires a [Service] or if it has reached its [End of Life].
End of Operational Life (EOL)
The EOL is approximate from the first five (5) hours of continuous power!
The EOL will depend on the type of gas your detector is targeting and may vary depending on its application and environmental
conditions such as the frequency of exposure to the target gas, poisons, or inhibitors!
At the end of their working life, electrochemical sensors for PARKSAFE detectors should be disposed of in an environmentally safe
manner. Alternatively, all detectors can be securely packaged and returned to AGS clearly marked for disposal.
Electrochemical sensors should not be incinerated as this may cause the cell to emit toxic fumes.
Enter the status screens on the controller to determine if the ParkSafe detector requires a [Service] or if it has
reached its [End of Life]. End of Life means the detector will need replacing and the Detector ‘Fault’ LED will
remain illuminated. The typical life of a ParkSafe detector depends on its application, environment and
intended target gas. In addition, the operational life may be prolonged if the equipment is installed and
maintained in accordance the instructions stated within this manual.

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Bump Testing (Gas Response Check)
All certified test gases supplied by AGS are classified as non-flammable and non-toxic, however, they may contain gas under
pressure and may explode if heated to extreme temperatures and cause asphyxiation in high concentrations. Always use in
accordance with the safety data sheet!
Gas response checks are often referred to as a ‘bump test’. Bump tests are important to make sure a device
can detect a release of gas as early as possible. The aim of the bump test is to make sure a detector is working
at its optimum by briefly exposing the unit to a known concentration of the target gas that usually exceeds the
highest alarm point. If the detector goes into alarm and all signals/outputs activate, then the system is working.
If the system fails to operate as intended in an alarm state, the gas detector must not be used until a full
inspection and service has been conducted. NFPA requires all gas detectors to be tested annually and that the
test results be recorded on site and available to inspectors.
A detector may visually appear in good working order, but its sensitivity and accuracy can be inhibited by
external factors. Dust, humidity, temperature fluctuations, cleaning products, contaminants, exposure to its
target gas or sensor drift (ageing) can cause a decline in sensitivity, accuracy, and eventual failure.
Regular bump tests are important to make sure the detector can detect a release of gas as early as possible
and usually takes seconds (gas type dependant i.e., CO sensors will take over a minute) and is often
completed alongside a scheduled fire alarm test, however the frequency should be determined following an
appropriate risk assessment by the end user.
We recommend testing detectors every 12-18 months along with the regular fire test procedures and coincide
with the annual service message prompted on the detection system after each year of service/operation.
Contact your AGS representative for details of suitable bump testing kits and gases. Kits usually consist of a
certified gas cylinder or spray. We recommend only using AGS calibration gas kits to ensure correct flow rates
meet AGS technical requirements. A bump testing gas is usually a concentration mix that exceeds the highest
alarm set point.
Bump Test Procedure
Step 1 will enable service mode and inhibit all alarms/outputs and signals for fifteen (15) minutes!
If you are testing all actuation of alarms/outputs and signals, please proceed to Step 2!
The controller will return to a normal operational state after fifteen minutes automatically unless service mode is disabled
manually by pressing the [Exit] button on screen!
Always give at least five (5) minutes between testing the same unit or until gas has fully dispersed!
If Service mode is activated –reset the system after completing the bump tests!
Pressing silence on the controller will silence the internal buzzer when in alarm!
Step 1. Activate Service Mode
•Access service mode by pressing the AGS logo on the controller (home screen logo only).
•The screen will display a service message prompt.
•Press Yes. (Note: All alarm signals/outputs will be inhibited for fifteen (15) minutes.
•Proceed to test gas detectors.
•Upon completion –exit service mode by pressing the ‘Exit’ button on screen.

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Step 2. Test Detector
Access to the interior of the detector, when carrying out any work, must be conducted by a competent person!
Apply a gas concentration ~50% higher than the alarm setpoint but do not exceed the upper limit of measurement!
•Ensure you have the correct calibration gas for the device type.
•If using a cylinder - screw the regulator/valve into the gas cylinder outlet.
•Offer up the applicator hose/cone and fully cover the sensing element on the front case.
•Open the valve/regulator to allow the gas to be delivered at a pre-set flow rate.
•Apply gas to the gas inlet holes on the front of the detector housing.
•The detector ‘Alarm’LED will illuminate at the alarm set point.
•The Controller will activate all configured outputs/relays (unless service mode is activated) and will display the gas
concentration detected.
•Remove applicator hose/ cone and turn the gas cylinder regulator/valve off.
•Wait for detector to stabilise / return to normal.
•Reset the service reminder by tapping the circuit test button 3 times (within 2 seconds)
•Test complete.
•Record your test details.

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Test Record
Date
Detector ID
Gas Details
Pass/Fail
Sign

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Date
Detector ID
Gas Details
Pass/Fail
Sign

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Specification
General
Model:
ParkSafe Controller
Capacity:
Up to 16 channels per controller unit.
Size: (H x W x D)
7.08 x 10.03 x 3” (180 x 255 x 77 mm)
Housing Material:
ABS Polylac - PA765.
UL 94 V-1
Mounting:
Indoor use - Wall Mounting
Weight:
1.3kg (2lb 13.85oz)
User Interface
Display:
4.3” TFT Touch Screen
Screen Brightness:
Adjustable 0-100%
Visual Indicators:
TFT visual. Green: Normal; Yellow: Pre-Alarm; Amber: Alarm Delay: Red: Alarm
Relay Outputs On/Off
Gas Detection Status.
Audible Alarm:
>70dB @ 3.28ft (1m). Quiet conditions.
Buttons:
Common for Silence/Reset operation.
Language:
English
Power Supply
Power Consumption:
14.5W max.
AC Power:
100-120V~ 50/60Hz
Internal Fuse:
T3.15A L250V
Equipment
Overvoltage Category:
II
Pollution Degree:
2
Equipment Class:
2
I/O
Relay Output:
Volt Free Relay Outputs x4 (non-latching).
NO/C/NC 6A @ 120V~
User configurable –energised/de-energised, time delay.
24 VDC switching.
Common Output:
24 VDC Permanent.
0-10 VDC Variable.
Environmental
Ingress Protection:
Not Formally Evaluated
Operating:
-10 ~ 50°C / 14 ~ 122°F 30 ~ 80% RH (non-condensing)
Storage:
-25 ~ 50°C / -13~122F° up to 95% RH (non-condensing)
Altitude Rating:
2000m
Wiring
Typical
Power~#18-12AWG-Tinned Copper.
Current Rating: 1A Minimum. Voltage:100-250V~. Wire Stripping Length 6-7mm
Relay: ~#18-12AWG-Tinned Copper.
Current Rating: 10A Minimum. Voltage: 100-250V~ Wire Stripping Length 6-7mm
For field connections use wires suitable for at least 90°C (194°F)
Detector: #15AWG Power Pair #18AWG Data Pair-Tinned copper.
Other: #18-14AWG-Tinned Copper.
Approvals
Electromagnetic Compatibility and
Electrical Safety
IEC 61010-1:2010 + AMD1:2016; EN 61010-1:2010 +A1:2019; UL61010-1/2012/R:2019-07;
CAN CSA C22.2 No. 61010-1-12/A1:2018-11
EMC EN 61326-1:2013
Other
Communication
RS485 MODBUS RTU

Installation, Operation & Maintenance ParkSafe Controller
Rev: 20 20
Installation Details
Please pass this manual to the system owner / user.
Date of Installation:
Installation Location:
Organisation:
Stamp/Signature of the installer:
We recommend all AGS gas detection equipment be commissioned by competent/trained engineers to ensure correct installation and
operation. The Merlin range of gas detectors are calibrated when manufactured, however, we strongly recommend the detectors response
and alarm signals are tested and validated once installed. This will ensure the equipment performs as intended and is free from any
unforeseen damage caused by transit/installation.
Every effort is made to ensure the accuracy of this document; however, AGS can assume no responsibility for any errors or omissions in
this document or their consequences. AGS would greatly appreciate being informed of any errors or omissions that may be found in the
content of this document. For information not covered in this document, or if there is a requirement to send comments/corrections, please
contact AGS using the contact details.
Find out more
American Gas Safety LLC
www.americangassafety.com
Head office:
6304 Benjamin Road, Suite 502, Tampa, FL 33634
Tel: [phone]
Email: [e-mail]
American Gas Safety LLC is the owner of this document and reserves all rights of modification without prior notice.