Weil-McLain GOLD CGa Installation And Maintenance Manual page 15

Boiler Manual
2e
Prepare boiler —
These systems are used on gas-fired boilers with vent dampers as shipped from factory. Boiler will not operate
without vent damper installed.
Only vent dampers listed in the
other vent damper installed could cause severe personal injury or death.
Damper blade
Standing pilot ignition systems—
manufacturer's instructions to install plug (shipped with
damper) in damper hole. For standing pilot boilers only,
install
plug with
hole.
Spark-ignited pilot systems— Refer to vent
manufacturer's instructions to install plug (shipped with
damper) in damper hole. For spark-ignited pilot boilers only,
install plug with no hole in vent damper hole.
Minimum clearances
Provide a minimum of 6" between the vent damper and
any combustible material. (Provide a minimum of 36 "
between jacket top and combustible ceiling.)
Installation
modify draft hood or vent damper, or make
Do not
another connection between draft hood and vent
damper or boiler except as noted below. This will void
CSA certification and will not be covered by Weil-
McLain warranty. Any changes will cause severe personal
injury, death or substantial property damage.
1. Install vent damper horizontally or vertically as
shown in vent damper manufacturer's instructions.
Vent damper must be installed so that it serves only
one boiler and so damper blade indicator is visible
to the user. See
Figure 8 Vent damper assemblies
Effikal damper
Refer to vent manufacturer's instructions to install
plug (shipped with damper) in damper hole.
Hold-open switch (Effikal only) —
Install vent damper so that switch
is visible and accessible to user.
Part Number 550-110-593/1099
Replacement
Refer to vent
3 / in vent damper
" diameter hole
8
.
Figure 8
Johnson Controls damper
Damper
blade
indicator
vent damper installation
parts list on page 61 are certified for use with CGa boilers. Any
2. Screws or rivets used to secure the vent damper to
the draft hood must not interfere with rotation of
the damper blade.
3. Install damper harness between damper actuator
and knockout in jacket top panel. Use strain relief
connectors and locknuts to secure both ends of
damper harness.
LINE UP KEYWAY WHEN
CONNECTING PLUGS.
FORCING A MISMATCH
HAZARDOUS CONDITION.
Keyway
4. Read and apply the harness plug warning label
(shown above) so that it is visible after installation.
5. Plug damper harness receptacle into damper harness
plug.
59325
Keep wiring harness clear of all hot
surfaces.
WARNING
CAN CAUSE A
Key
Bypassing (jumpering) vent damper
will cause flue products such as
carbon monoxide to escape into the
house. This will cause severe
personal injury or death.
After boiler has operated once, if
either end of harness
disconnected, the system safety
shutdown will occur. The boiler will
not operate until harness is
reconnected.
— Damper hold
Effikal damper
open switch must be in
Automatic
position for system to
Operation
operate properly.
59304
is
15