LAARS EBP 175 MBTU/h - Installation, Operation and Maintenance Instructions - Manual (Page 4)

Page 4 LAARS Heating Systems
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1.4 Locating the Appliance
The appliance is designed for installation on
combustible flooring, in alcoves, basements, closets,
or utility rooms. It must NOT be installed on
carpeting. IF INSTALLED IN A FINISHED AREA,
PROVISION SHOULD BE MADE FOR DRAINAGE
OF ANY ACCIDENTAL SPILLAGE OR LEAKAGE.
The location for the unit should be chosen with
regard to venting dimensions, convenient access to
piping, and accessibility for service and cleaning.
The boiler shall be installed so that the gas
ignition system components are protected from water
(dripping, spraying, rain, etc.) during appliance
operation or service (circulator replacement, control
replacement, etc.).
1.5 Clearances
The dimension and criteria in Table 1 should be
followed when choosing the location for the unit.
SECTION 2.
Venting Options
The Endurance boilers are certified as direct vent,
sealed combustion boilers, when vented using one of
the following two methods:
1) Concentric direct vent, which has a flue gas pipe
inside a combustion air pipe.
2) Non-concentric direct vent, using separate pipes
for the flue gases and the combustion air.
The Endurance boilers can also take air from the
space (when properly sized), and be vented as a
Category IV appliance.
The following sections describe the requirements
for each of these methods.
IMPORTANT NOTE REGARDING ENDURANCE
VENTING: Regardless of the venting arrangement
being used, the flue gas vent material used with
the Endurance MUST be stainless steel special
gas vent listed to U.L. Standard 1738 and U.L.C.
Standard 636. Endurance flue gases must never
be vented into a masonry chimney or vented
with B-vent or other galvanized vent material.
Endurance units are not permitted to be common
vented with any other appliance(s), including
other Endurance appliances.
Figure 3. Model Structure.
1 2 3 4 5 6 7 8 9 10 11 12 13 14
E B P I F 2 X
Prod. Line
E = Endurance
Usage
B = Combination,
Heating &
Domestic
Water
Type
P = Standard
BTU Input
0 1 1 0
0 1 7 5
Fuel
N = Natural Gas
P = Propane
Altitude
A = 0' - 5,000'
H = Over 5,000'
Location
I = Indoor
Firing Mode
F = Modulating
Country of Sale
A = USA & Canada
R = Russia
Minimum Clearances From Combustible Materials
Back 1 inch 25mm
Left Side 1 inch 25mm
Right Side 1 inch 25mm
Front 1 inch 25mm
Top (Alcove Install) 1 inch 25mm
Top (Closet Install)* 22 inches 559mm
Vent: Concentric, Direct 0 inch 0mm
Vent: Category 3 inches 76mm
Suggested Serviceability Clearances
Front 18 inches 457mm
Left Side 6 inches 152mm
Right Side 6 inches 152mm
*Minimum closet height 6'9" 206 cm
Table 1. Clearances.