Weil-McLain GOLD CGa Installation And Maintenance Manual page 47

Boiler Manual
❏
Start-up . . . . . . . . .
1. Perform start-up procedures section
including procedure to verify operation of burners
and vent damper on page 32.
2. Verify
is working properly.
3. Verify
concentration and that inhibitor level is correct.
❏
Check/test . . . . . . .
Gas piping
1. Sniff near floor and around boiler area for any
indication of a
2.
Test gas piping using bubble test,
page 26 of this manual, if there is any indication of
a leak.
Cold fill and operating pressures
1. While the system is cold, note the
on the boiler pressure/temperature gauge. Verify that
cold fill pressure is correct.
2.
Watch the pressure
up to ensure pressure rise is normal. Too high a rise
would indicate a waterlogged or undersized
expansion tank.
Air vents and air elimination
1. Inspect automatic air vents (if used). Also inspect
air separators to ensure they are operational.
2. The cap must be unscrewed one turn to allow air to
escape.
3. See Figure 26
and briefly push valve
A
the valve seat.
4. Replace cap
and then unscrewing one turn.
Limit controls and cutoffs
1. Inspect and test the boiler limit control. Verify
operation by turning control set point below boiler
Part Number 550-110-593/1099
is correct and that fill system
cold fill pressure
(if used) is at the right
antifreeze level
.
gas leak
pressure reading
as the boiler and system heat
. If the air vent is leaking, remove cap
and then release to clean
B
by twisting all the way onto valve
A
, pages 28-32, 4.
6 Check gas piping
verifying no indications of leakage and all piping
and connections are in good condition.
5. Read the
(manual section
6. Start the boiler following the
instructions
temperature. Boiler should cycle off. Return dial to
original setting.
2. Inspect and test additional limit controls or low
water cutoffs installed on system.
per section ,
4
Figure 26 Automatic air vent, typical
A
B
59342
Expansion tank
1. Expansion tanks provide space for water to move in
an out as the heating system water expands due to
temperature increase or contracts as the water cools.
Tanks may be open, closed or diaphragm or bladder
type. See section
suggested best location of expansion tanks and air
eliminators.
Open-type
baseboard unit, usually in the attic or closet. Has a
gauge glass and overflow pipe to a drain.
B
Closed-type
boiler. Tank is partially filled with water, leaving an
air cushion for expansion.
• Make sure this type of tank is fitted with a
fitting
Taco-Trol. This fitting reduces gravity
, per manual sections
Lighting or Operating instructions
) applying to the boiler.
8 or 9
Lighting or Operating
(manual section ).
8 or 9
, page 16 of this manual for
3
— located above highest radiator or
— welded gas tight and located above
, such as the B & G Tank-Trol or Taco
and ,
4 6
tank
47