Weil-McLain CGA25SPDN Boiler User Manual


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Part Number 550-101-009/0107
15
GOLD CGa Gas-Fired Water Boiler — Boiler Manual
Prepare boiler — vent damper installation
4. Read and apply the harness plug warning label
(shown above) so that it is visible after installa-
tion.
5. Plug damper harness receptacle into damper harness
plug.
"YPASSING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 ei-
ther end of harness is disconnected,
the system safety shutdown will oc-
cur. The boiler will not operate until
harness is reconnected.
%FlKALOR&IELD#ONTROLSDAMPER —
$AMPERHOLDOPENSWITCHMUSTBE
in !UTOMATIC/PERATION position
for system to operate properly.
Figure 8 Vent damper assemblies
These systems are used on gas-fired boilers with vent
DAMPERSASSHIPPEDFROMFACTORY"OILERWILLNOTOPERATE
without vent damper installed.
Only vent dampers listed in the Replacement parts list
ONPAGEARECERTIlEDFORUSEWITH#'ABOILERS!NY
other vent damper installed could cause severe personal
injury or death.
Installation
1. Install vent damper horizontally or vertically as
shown in vent damper manufacturer’s instructions.
6ENTDAMPERMUSTBEINSTALLEDSOTHATITSERVESONLY
one boiler and so damper blade indicator is visible
to the user. See &IGURE.
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.
Keep wiring harness clear of all hot
surfaces.
2e
Damper blade
3TANDINGPILOTIGNITION SYSTEMS Refer to vent
manufacturer’s instructions to install plug (shipped
with damper) in damper hole. For standing pilot boil-
ers only, install
PLUGWITH
/
vDIAMETERHOLE in vent
damper hole.
3PARKIGNITEDPILOTSYSTEMS Refer to vent man-
ufacturer’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
0ROVIDEAMINIMUMOFvBETWEENTHEVENTDAMPERAND
any combustible material. (Provide a minimum of 36"
between jacket top and combustible ceiling.)
$ONOT modify draft hood or vent damper, or make an-
other connection between draft hood and vent damper
ORBOILEREXCEPTASNOTEDBELOW4HISWILLVOID#3!
certification and will not be covered by Weil-McLain
warranty. Any changes will cause severe personal injury,
death or substantial property damage.
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