Axiom NT25-P18 Installation, Operation And Maintenance Instructions Download Page 7

 

 

3603 Burron Avenue, Saskatoon, SK S7P 0E4    Ph: (306) 651-1815 

email: [email protected]    website: www.axiomind.com

 

 

ATTENTION: ADDITIONAL MAINTENANCE FOR BOILERS WITH 

ALUMINUM

 HEAT 

EXCHANGERS  

-

 

Boilers with Aluminum heat exchangers deposite white salt on the neutralization media that 
restricts flow through the neutralizer. To clean the media, remove the pump and cover, 
thoroughly rinse the media with water, washing the salt out of the tank. Replace the pump 
and cover. 

 
 
 
 
 
 
 
 
 

 

Troubleshooting Chart 

 

Problem 

Resolution 

The unit does not run. 

a) Check the power supply. 
b) Check the appliance to see if the condensate is actually being 
produced.  
c) Make sure the inlet piping is not clogged. If it is clogged, the 
appliance may eventually be damaged. 

The unit makes loud noises 
when running. 

a) Make sure the inside of reservoir is clean.  
b) Make sure there is no siphoning action. 

The unit runs but does not 
pump the liquid out. 

a) Check that the highest point of the outlet piping does not 
exceed the maximum delivery head of the pump.  
b) Make sure the outlet piping is not clogged.  
c) Inspect the check valve following the maintenance 
instructions. 

Liquid drains back into the 
pump from the outlet piping. 

a) The check valve may have debris in it. Clean the check valve 
following the maintenance instructions. 

Liquid leaks from around the 
check valve. 

a) Make sure the outlet piping is tightly connected with the 
check valve.  
b) Make sure the check valve is fastened properly.  
c) If the O-ring under the check valve is damaged, replace with 
a new one. 

 

Limited Warranty 

 
The NT25-P18 is warranted against defects in materials and workmanship for one year. 

  

Figure 7: 

Salt precipitate deposited on 

neutralization media from Aluminum heat 
exchangers 

Figure 8:

 Neutralization media that has 

been rinsed with clean water 

Summary of Contents for NT25-P18

Page 1: ...amage and or personal injury might result from an inoperative pump a backup system and or alarm should be used 7 Do not twist or kink the drain hose 8 Before doing any maintenance or repairs on the pump disconnect the pump from the power supply to avoid electrical shock 9 Keep children away from pump 10 This is a non submersible pump 11 Every installation or after sales service should be done by a...

Page 2: ...3 Do not route the condensate line through any area that is exposed to freezing temperatures If traffic poses a risk install some protection to prevent movement and or damage 4 Check that the power source voltage matches with the pump s requirement Connect the pump s power cord to a constant source of power not a fan or other device that runs intermittently Do not connect or link the appliance s p...

Page 3: ...ly outlet discharge tubing passes through an area where freezing may occur use a 7 32 drill bit on the inlet side of the check valve to remove the ball and spring Only insert drill bit half way through check valve See figure 1 below Figure 1 To remove ball and spring from bottom of check valve use 7 32 drill bit NOTE See maintenance section for check valve removal from pump page 6 item 2 7 32 dril...

Page 4: ...w 2 Connect DCS wiring to remote alarm dry contacts as requested to provide alarm signal 3 To disable the audible alarm remove the jumper on the control board Figure 4 High level float connection from NT25 P18 to RIA10 1 SAA alarm panel 4 Plug the NT25 P18 into the RIA10 1 SAA panel OPTIONAL If your condensing appliance has an auxiliary interlock for normally closed contacts you may connect the tw...

Page 5: ...pump in and the pump should turn on Ensure there are no leaks or kinks in the piping During operation the appliance condensate will flow through the neutralizing media raising the pH of the condensate to a level that will help prevent corrosion of the domestic drain and the public sewer system The pump will then remove the condensate to desired location i e drain See figure 5 above Pump Performanc...

Page 6: ...icing assemble the unit in the reverse order 8 In case of a long term break remove water from the outlet piping and reservoir 9 Monitor the cleanliness level of the neutralization media and pH level in the tank monthly Remove any precipitate coating or debris found to prevent blockages The pH can be checked after the condensate has exited the tank or by removing the lid and taking a sample from th...

Page 7: ...e of reservoir is clean b Make sure there is no siphoning action The unit runs but does not pump the liquid out a Check that the highest point of the outlet piping does not exceed the maximum delivery head of the pump b Make sure the outlet piping is not clogged c Inspect the check valve following the maintenance instructions Liquid drains back into the pump from the outlet piping a The check valv...

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