Lochinvar EFFICIENCY PLUS, Руководство дизайнера

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combustion air pipe materials from those
specified in this section. Approved material
for air inlet pipes include: PVC, CPVC or ABS
(3
”
, 4
”
, 5
”
or 6
”
I.D.), dryer vent, and
galvanized steel vent pipe with joints and
seams sealed.
The total equivalent length of the direct vent
flue pipe or the air inlet pipe should not
exceed a maximum of 50 equivalent feet
(15.2m) in length for each pipe. Subtract
5 feet (1.5m) for each elbow in the vent
pipe or air intake system.
Horizontal Direct Vent
Horizontal direct vent applications require a
vent kit which will be supplied by Lochinvar
to assure proper operation.
The part number for each kit is listed by unit
size. Each kit includes a sidewall vent cap for
flue products, a firestop, a combustion air
inlet cap, and instructions for proper
installation.
It is important to be careful in the placement
of the horizontal direct vent caps. Combustion
air supplied from outdoors should be free of
contaminants.
To prevent recirculation of flue products into
the combustion air inlet:
The combustion air inlet cap must not be
installed above the flue outlet cap.
Maintain a minimum 3 foot (0.9m) radius
clearance between the combustion air inlet
cap and the flue outlet cap. Additional
space may be required between caps
where high winds may occur.
The combustion air inlet cap and vent cap
for flue outlet
must be located on the
same sidewall and in the same pressure
zone.
Do not place the combustion air inlet cap
closer than 10 feet (3.0m) from an inside
corner of an L-shaped structure.
Place the combustion air inlet cap at least
one foot (0.3m) above ground level and
above normal snow levels.
(FIG. 10) HORIZONTAL DIRECT VENT
(FIG. 11) HORIZONTAL DIRECT VENT CAP
(TABLE D)
HORIZONTAL DIRECT VENT KIT PART NUMBERS
MODEL FLUE AIR PART
NUMBER PIPE SIZE INLET PIPE NUMBER
EB150 4” 4” HDK 3013
EB200 4” 4” HDK 3013
EB250 5” 5” HDK 3014
EB300 5” 5” HDK 3014
1.
NOTE:
The use of double wall
vent material for the
combustion air inlet
pipe is recommended in
cold climates to prevent
the accumulation of
condensation on the
pipe exterior.
2.
L o c h i n v a r
D E S I G N E R
’
S G U I D E E F F I C I E N C Y
+
B O I L E R
6 1 5 - 8 8 9 - 8 9 0 0
11
3.
4.
5.