Axiom NT25-P18 Installation, Operation And Maintenance Instructions Download Page 6

 

Maintenance 

 
1. Before attempting to service or disassemble any component, make sure that the unit is 
disconnected from the power source.  
 
2. Remove the drain hose from the inlet hole. Uninstall the check valve from the main plate (see 
figure 6 below). Disassemble the outlet piping from the check valve. Clean the check valve and 
be sure that the ball inside of check valve moves freely.  
 
 
 
 
 
 
 
 
 
 
3. Remove the steel plate and plastic cover from the tank.  
 
4. Be sure the floats move freely. Clean as necessary.  
 
5. Remove neutralization media and clean the reservoir with warm water and mild soap. Rinse 
with water. Replace LipHter

+

 media in tank. 

 
6. Check the inlet and outlet piping. Clean as necessary. Be sure there are no kinks in the line 
that would inhibit flow.  
 
7. After servicing, 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 the pump out chamber. 
Use a suitable pH test strip paper or an electronic pH meter for precise measurement. The neutralizing 
media should be replaced when the pH level drops below the minimum level of the local water 
authority, or after one year, whichever comes first. For replacement  media contact your local 
Axiom distributor or visit www.axiomind.com for more information. 
 
 
 
 
 
 
 
 

To remove 

 Turn the check valve 90˚ counter-clockwise and lift 

the check valve out of the hole  
 
For Installation 

 Put the check valve into the hole and turn 90˚ 

clockwise

 

Figure 6

 

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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