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P/N: 18122     

Page 3 

Rev. 1.0 

 

Rev Date: 9/7/07 

 
 
 

Sensor Installation

  

The sensor supplied with the S-2A includes a  
standard 20 foot ( 8.29m) cable. If a longer cable  
is desired contact your dealer or Fireboy-Xintex.  
Coil excessive cable in a convenient location.  
Remove the paper covering the adhesive backing  
on the sensor-mounting surface and press the  
sensor into position on a previously cleaned  
surface.  Install with two (2) screws provided.  
 
 

CAUTION

: Do not attempt to use any other  

manufacturer’s sensor or previously installed  
sensors.  
 

 

 

 

 

 

 

 

 

Figure 2 

 

Sensor Location

  

CAUTION:

 Propane is heavier than air and will  

 

 

 

 

settle. Therefore it is important that a location be  
selected that is as low as practical and as near the  
appliance as is possible. Keep sensor dry.  
 

CNG 

(Compressed Natural Gas) is lighter than air and will rise. Therefore, it is important that a 

location be selected that is within nine (9”) inches (22.86cm) of the ceiling height. Do not locate 
sensor directly over cooking or heating appliances. Keep sensor dry.  
 
 

Solenoid Installation

  

 

Propane (LPG)

 — Mount the solenoid in-line on the tank  

side of the LPG regulator as close to the tank as is practical.  
The tank itself should be mounted outside the cabin or  
crew quarters to avoid the possibility of gas accumulation  
due to a leak between the tank and the solenoid valve.  
 

CNG

 — Because of the high tank pressure of CNG, the  

solenoid valve MUST be installed after the CNG regulator  
and as close to the regulator as practical. The tank  
and regulator should be mounted outside the cabin or  
crew quarters to avoid the possibility of gas accumulation  
due to a leak between the tank and the solenoid valve,  
 

NOTE: DO NOT

 over-tighten fittings. Doing so will cause  

the solenoid valve to malfunction. After installation, check  
all fittings for leaks with a soapy water solution - NEVER  

 

 

Figure 3 

use flame to check for leaks. Use 2 wrenches when tightening  
connections to avoid twisting the valve and causing damage.  

 

Summary of Contents for S-2A

Page 1: ...full checking of all operations System operation and correct sensor operation are continually monitored and indicators are provided for fault detection The S 2A has an internal relay for automatic con...

Page 2: ...ower up Unit Fault Off Unit Functional Amber Fault Detected horn beeping Display Installation The S 2A should be mounted in a convenient location preferably at the source of propane usage i e galley h...

Page 3: ...s within nine 9 inches 22 86cm of the ceiling height Do not locate sensor directly over cooking or heating appliances Keep sensor dry Solenoid Installation Propane LPG Mount the solenoid in line on th...

Page 4: ...valve to S 2A display using figure 6 on page 4 Quick Disconnect Style Sensor with 20 sensor cable is included The disconnect connector plug is located 12 from the red sensor In the event you need to r...

Page 5: ...ill vary depending upon usage of the unit Long periods of inactivity will require long warm up periods After the warm up period the indicator will change to green It a sensor is not installed the sens...

Page 6: ...rer for repair Nuisance Alarms The sensor used for the S 2A is sensitive to hydrocarbons an alarm may be triggered by the use of other chemicals such as cleaners paint polish etc The sensors will also...

Page 7: ...as a supplement warning only It is NOT intended to replace standard safety practices which should be carried out around explosive gases i e inspect all rooms and compartments check all gas fittings a...

Page 8: ...epaired or replaced at Seller s option provided that a the product has not been subjected to abuse contamination neglect accident incorrect wiring not our own improper installation or servicing or use...

Page 9: ...P N 18122 Page 9 Rev 1 0 Rev Date 9 7 07...

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