GV90+
User maintenance procedures (continued)
MONTHLY
Maintenance
PERIODIC
Maintenance
Check condensate system
1.NOTICE — To improve clarity, this illustration of the condensate trap is shown with no air inlet pipe attached. If your boiler has an air pipe connected here, DO NOT tamper with it. The trap is also shown as item m on page 11.
2.Inspect the condensate
translucent. You should be able to see water in the trap as shown.
3. If the trap does not contain water, turn off the boiler ON/OFF switch and call your boiler service technician imme- diately.
4.Item 2 in the illustration is the tubing or
pipe from the boiler condensate outlet to the condensate drain or condensate pump. Inspect this tubing or piping, making sure it is in good condition and not obstructed.
If the condensate trap is dry or the condensate line is damaged or obstructed, there is a risk of flue gas flow into the building. The boiler must not be operated and must be inspected and serviced only by a qualified service technician. Failure to comply with this directive could result in the possibility of severe personal injury, death or substantial property damage.
Check boiler relief valve
1.Inspect the boiler relief valve and the relief valve discharge pipe for signs of weeping or leakage.
2.If the relief valve often weeps, the expansion tank may not be working properly. Immediately contact your qualified service technician to inspect the boiler and system.
Test low water cutoff (if installed)
1.If the system is equipped with a low water cutoff, test the low water cutoff periodically during the heating season, following the low water cutoff manufacturer’s instructions.
Clean vent termination & air intake screens
1.Remove all lint and debris from both the boiler air intake screen and the flue discharge screen.
2.The boiler control module will sense blockage of the air intake or flue and lockout if the blockage is excessive. It will signal the failure by flashing the appropriate indicator lights on the control board.
3.If removing the debris does not allow the boiler to operate correctly afterwards, contact your qualifed service technician to inspect the boiler and vent/air systems.
8 | Part number |
