Weil-McLain GV90+ User Manual download pdf (Page 8)

Part number 550-142-055/0411

GV90+ gas-fired water boiler — User’s Information Manual

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 P-trap (item 1

in the illustration at right). The trap is

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.

User maintenance procedures (continued)

MONTHLY

Maintenance

PERIODIC

Maintenance

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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