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Part number 550-110-282/1108
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CGs-4E Gas-Fired Water Boiler — Boiler Manual
Prepare boiler location — clearances1b
Figure 2 Required MINIMUM clearances
Figure 1
Recommended
SERVICE clearances
(see WARNING
below)
Recommended SERVICE clearances
(Fig. 1)
1. Provide clearances for cleaning and servicing the boiler and for
accesstocontrolsandcomponents.SeeFigure1forrecommenda-
tions.
2. Provide at least screwdriver clearance to jacket front panel screws
for removal of front panel for inspection and minor service. If
unable to provide at least screwdriver clearance, install unions and
shutoff valves in system so boiler can be moved for servicing.
Required MINIMUM clearances (Fig. 2)
Never install the boiler in a space with clear-
ances less than the minimum clearances shown
in Figure 2
. Failure to comply can result in severe
personal injury, death or substantial property
damage and reduced boiler life.
1. Hot water pipes: at least ¹⁄₂ inch from combustible material.
2. Single-wall vent pipe: at least 6 inches from combustible mate-
rial.
3. Type B double-wall metal vent pipe: refer to vent manufacturer’s
recommendation for clearances to combustible material.
If any clearance is less than in Figure 1, provide
openings for combustion and ventilation air
located on the wall or door opposite the boiler
FRONT (see Figure 2)
.
These openings must be located as shown in Figure 2 to provide
proper air flow around the boiler. The free area of each opening
(after deducting for louvers) must be at least one square inch per
1,000 Btuh
of boiler input. If the building is of unusually tight
construction (see page 10 for definition), the air openings must
connect directly to outside or the building must have air openings
to the outside as specified on page 10.
If clearances are equal to or greater than Figure 1, see pages 10
and 11 for location and sizing of combustion air openings.
Failure to comply can result in severe personal injury, death or
substantial property damage and reduced boiler life.
Flooring
TheCGs-4Eboilerisapprovedforinstallationoncombus-
tible flooring, but must never be installed on carpeting.
Donotinstallboileroncarpetingeven
if foundation is used. Fire can result,
causing severe personal injury, death
or substantial property damage.
Foundation
1. Provide a solid brick or minimum 2-inch thick concrete
foundation pad if any of the following is true:
• oorcanbecomeooded.
• theboilermountingareaisnotlevel.
2. Minimumdimensionsare25” length by:
Minimum foundation width:
CGs-4E
15”
Residential garage installations
Take the following special precautions when installing the
boiler in a residential garage. If the boiler is located in a
residentialgarage,perANSIZ223.1:
• Mounttheboileraminimumof
18 inches above the
oor
of the garage to assure the burner and ignition
devices will be no less than 18 inches above the floor.
• Locateor
protect the boiler so it cannot be damaged
by a moving vehicle.